id	sid	tid	token	lemma	pos
fumecheng-2369	1	1	plane	plane	NOUN
fumecheng-2369	1	2	thermoelastic	thermoelastic	ADJ
fumecheng-2369	1	3	waves	wave	NOUN
fumecheng-2369	1	4	in	in	ADP
fumecheng-2369	1	5	infinite	infinite	ADJ
fumecheng-2369	1	6	half	half	ADJ
fumecheng-2369	1	7	-	-	PUNCT
fumecheng-2369	1	8	space	space	NOUN
fumecheng-2369	1	9	caused	cause	VERB
fumecheng-2369	1	10	facta	facta	PROPN
fumecheng-2369	1	11	universitatis	universitatis	PROPN
fumecheng-2369	1	12	series	series	NOUN
fumecheng-2369	1	13	:	:	PUNCT
fumecheng-2369	1	14	mechanical	mechanical	ADJ
fumecheng-2369	1	15	engineering	engineering	NOUN
fumecheng-2369	1	16	vol	vol	NOUN
fumecheng-2369	1	17	.	.	PUNCT
fumecheng-2369	2	1	14	14	NUM
fumecheng-2369	2	2	,	,	PUNCT
fumecheng-2369	2	3	no	no	DET
fumecheng-2369	2	4	3	3	NUM
fumecheng-2369	2	5	,	,	PUNCT
fumecheng-2369	2	6	2016	2016	NUM
fumecheng-2369	2	7	,	,	PUNCT
fumecheng-2369	2	8	pp	pp	ADV
fumecheng-2369	2	9	.	.	PUNCT
fumecheng-2369	3	1	335	335	NUM
fumecheng-2369	3	2	341	341	NUM
fumecheng-2369	3	3	doi	doi	NOUN
fumecheng-2369	3	4	:	:	PUNCT
fumecheng-2369	3	5	10.22190	10.22190	NUM
fumecheng-2369	3	6	/	/	SYM
fumecheng-2369	3	7	fume1603335p	fume1603335p	NOUN
fumecheng-2369	3	8	critical	critical	ADJ
fumecheng-2369	3	9	velocity	velocity	NOUN
fumecheng-2369	3	10	of	of	ADP
fumecheng-2369	3	11	controllability	controllability	NOUN
fumecheng-2369	3	12	of	of	ADP
fumecheng-2369	3	13	sliding	slide	VERB
fumecheng-2369	3	14	friction	friction	NOUN
fumecheng-2369	3	15	by	by	ADP
fumecheng-2369	3	16	normal	normal	ADJ
fumecheng-2369	3	17	oscillations	oscillation	NOUN
fumecheng-2369	3	18	in	in	ADP
fumecheng-2369	3	19	viscoelastic	viscoelastic	ADJ
fumecheng-2369	3	20	contacts	contact	NOUN
fumecheng-2369	3	21	udc	udc	VERB
fumecheng-2369	3	22	539.3	539.3	NUM
fumecheng-2369	3	23	mikhail	mikhail	PROPN
fumecheng-2369	3	24	popov	popov	NOUN
fumecheng-2369	3	25	1,2,3	1,2,3	NUM
fumecheng-2369	3	26	1	1	NUM
fumecheng-2369	3	27	tomsk	tomsk	PROPN
fumecheng-2369	3	28	polytechnic	polytechnic	PROPN
fumecheng-2369	3	29	university	university	PROPN
fumecheng-2369	3	30	,	,	PUNCT
fumecheng-2369	3	31	tomsk	tomsk	PROPN
fumecheng-2369	3	32	,	,	PUNCT
fumecheng-2369	3	33	russia	russia	PROPN
fumecheng-2369	3	34	2	2	NUM
fumecheng-2369	3	35	technische	technische	PROPN
fumecheng-2369	3	36	universität	universität	PROPN
fumecheng-2369	3	37	berlin	berlin	PROPN
fumecheng-2369	3	38	,	,	PUNCT
fumecheng-2369	3	39	berlin	berlin	PROPN
fumecheng-2369	3	40	,	,	PUNCT
fumecheng-2369	3	41	germany	germany	PROPN
fumecheng-2369	3	42	3	3	NUM
fumecheng-2369	3	43	tomsk	tomsk	PROPN
fumecheng-2369	3	44	state	state	PROPN
fumecheng-2369	3	45	university	university	PROPN
fumecheng-2369	3	46	,	,	PUNCT
fumecheng-2369	3	47	tomsk	tomsk	PROPN
fumecheng-2369	3	48	,	,	PUNCT
fumecheng-2369	3	49	russia	russia	PROPN
fumecheng-2369	3	50	abstract	abstract	NOUN
fumecheng-2369	3	51	.	.	PUNCT
fumecheng-2369	4	1	sliding	slide	VERB
fumecheng-2369	4	2	friction	friction	NOUN
fumecheng-2369	4	3	can	can	AUX
fumecheng-2369	4	4	be	be	AUX
fumecheng-2369	4	5	reduced	reduce	VERB
fumecheng-2369	4	6	substantially	substantially	ADV
fumecheng-2369	4	7	by	by	ADP
fumecheng-2369	4	8	applying	apply	VERB
fumecheng-2369	4	9	ultrasonic	ultrasonic	ADJ
fumecheng-2369	4	10	vibration	vibration	NOUN
fumecheng-2369	4	11	in	in	ADP
fumecheng-2369	4	12	the	the	DET
fumecheng-2369	4	13	sliding	slide	VERB
fumecheng-2369	4	14	plane	plane	NOUN
fumecheng-2369	4	15	or	or	CCONJ
fumecheng-2369	4	16	in	in	ADP
fumecheng-2369	4	17	the	the	DET
fumecheng-2369	4	18	normal	normal	ADJ
fumecheng-2369	4	19	direction	direction	NOUN
fumecheng-2369	4	20	.	.	PUNCT
fumecheng-2369	5	1	this	this	DET
fumecheng-2369	5	2	effect	effect	NOUN
fumecheng-2369	5	3	is	be	AUX
fumecheng-2369	5	4	well	well	ADV
fumecheng-2369	5	5	known	know	VERB
fumecheng-2369	5	6	and	and	CCONJ
fumecheng-2369	5	7	used	use	VERB
fumecheng-2369	5	8	in	in	ADP
fumecheng-2369	5	9	many	many	ADJ
fumecheng-2369	5	10	applications	application	NOUN
fumecheng-2369	5	11	ranging	range	VERB
fumecheng-2369	5	12	from	from	ADP
fumecheng-2369	5	13	press	press	NOUN
fumecheng-2369	5	14	forming	form	VERB
fumecheng-2369	5	15	to	to	ADP
fumecheng-2369	5	16	ultrasonic	ultrasonic	ADJ
fumecheng-2369	5	17	actuators	actuator	NOUN
fumecheng-2369	5	18	.	.	PUNCT
fumecheng-2369	6	1	one	one	NUM
fumecheng-2369	6	2	of	of	ADP
fumecheng-2369	6	3	the	the	DET
fumecheng-2369	6	4	characteristics	characteristic	NOUN
fumecheng-2369	6	5	of	of	ADP
fumecheng-2369	6	6	the	the	DET
fumecheng-2369	6	7	phenomenon	phenomenon	NOUN
fumecheng-2369	6	8	is	be	AUX
fumecheng-2369	6	9	that	that	SCONJ
fumecheng-2369	6	10	,	,	PUNCT
fumecheng-2369	6	11	at	at	ADP
fumecheng-2369	6	12	a	a	DET
fumecheng-2369	6	13	given	give	VERB
fumecheng-2369	6	14	frequency	frequency	NOUN
fumecheng-2369	6	15	and	and	CCONJ
fumecheng-2369	6	16	amplitude	amplitude	NOUN
fumecheng-2369	6	17	of	of	ADP
fumecheng-2369	6	18	oscillation	oscillation	NOUN
fumecheng-2369	6	19	,	,	PUNCT
fumecheng-2369	6	20	the	the	DET
fumecheng-2369	6	21	observed	observe	VERB
fumecheng-2369	6	22	friction	friction	NOUN
fumecheng-2369	6	23	reduction	reduction	NOUN
fumecheng-2369	6	24	diminishes	diminish	VERB
fumecheng-2369	6	25	with	with	ADP
fumecheng-2369	6	26	increasing	increase	VERB
fumecheng-2369	6	27	sliding	slide	VERB
fumecheng-2369	6	28	velocity	velocity	NOUN
fumecheng-2369	6	29	.	.	PUNCT
fumecheng-2369	7	1	beyond	beyond	ADP
fumecheng-2369	7	2	a	a	DET
fumecheng-2369	7	3	certain	certain	ADJ
fumecheng-2369	7	4	critical	critical	ADJ
fumecheng-2369	7	5	sliding	slide	VERB
fumecheng-2369	7	6	velocity	velocity	NOUN
fumecheng-2369	7	7	,	,	PUNCT
fumecheng-2369	7	8	there	there	PRON
fumecheng-2369	7	9	is	be	VERB
fumecheng-2369	7	10	no	no	ADV
fumecheng-2369	7	11	longer	long	ADV
fumecheng-2369	7	12	any	any	DET
fumecheng-2369	7	13	difference	difference	NOUN
fumecheng-2369	7	14	between	between	ADP
fumecheng-2369	7	15	the	the	DET
fumecheng-2369	7	16	coefficients	coefficient	NOUN
fumecheng-2369	7	17	of	of	ADP
fumecheng-2369	7	18	friction	friction	NOUN
fumecheng-2369	7	19	with	with	ADP
fumecheng-2369	7	20	or	or	CCONJ
fumecheng-2369	7	21	without	without	ADP
fumecheng-2369	7	22	vibration	vibration	NOUN
fumecheng-2369	7	23	.	.	PUNCT
fumecheng-2369	8	1	this	this	DET
fumecheng-2369	8	2	critical	critical	ADJ
fumecheng-2369	8	3	velocity	velocity	NOUN
fumecheng-2369	8	4	depends	depend	VERB
fumecheng-2369	8	5	on	on	ADP
fumecheng-2369	8	6	material	material	NOUN
fumecheng-2369	8	7	and	and	CCONJ
fumecheng-2369	8	8	kinematic	kinematic	ADJ
fumecheng-2369	8	9	parameters	parameter	NOUN
fumecheng-2369	8	10	and	and	CCONJ
fumecheng-2369	8	11	is	be	AUX
fumecheng-2369	8	12	a	a	DET
fumecheng-2369	8	13	key	key	ADJ
fumecheng-2369	8	14	characteristic	characteristic	NOUN
fumecheng-2369	8	15	that	that	PRON
fumecheng-2369	8	16	must	must	AUX
fumecheng-2369	8	17	be	be	AUX
fumecheng-2369	8	18	accounted	account	VERB
fumecheng-2369	8	19	for	for	ADP
fumecheng-2369	8	20	by	by	ADP
fumecheng-2369	8	21	any	any	DET
fumecheng-2369	8	22	theory	theory	NOUN
fumecheng-2369	8	23	of	of	ADP
fumecheng-2369	8	24	influence	influence	NOUN
fumecheng-2369	8	25	of	of	ADP
fumecheng-2369	8	26	vibration	vibration	NOUN
fumecheng-2369	8	27	on	on	ADP
fumecheng-2369	8	28	friction	friction	NOUN
fumecheng-2369	8	29	.	.	PUNCT
fumecheng-2369	9	1	recently	recently	ADV
fumecheng-2369	9	2	,	,	PUNCT
fumecheng-2369	9	3	the	the	DET
fumecheng-2369	9	4	critical	critical	ADJ
fumecheng-2369	9	5	sliding	slide	VERB
fumecheng-2369	9	6	velocity	velocity	NOUN
fumecheng-2369	9	7	has	have	AUX
fumecheng-2369	9	8	been	be	AUX
fumecheng-2369	9	9	interpreted	interpret	VERB
fumecheng-2369	9	10	as	as	ADP
fumecheng-2369	9	11	the	the	DET
fumecheng-2369	9	12	transition	transition	NOUN
fumecheng-2369	9	13	point	point	NOUN
fumecheng-2369	9	14	from	from	ADP
fumecheng-2369	9	15	periodic	periodic	ADJ
fumecheng-2369	9	16	stick	stick	NOUN
fumecheng-2369	9	17	-	-	PUNCT
fumecheng-2369	9	18	slip	slip	NOUN
fumecheng-2369	9	19	to	to	ADP
fumecheng-2369	9	20	pure	pure	ADJ
fumecheng-2369	9	21	sliding	slide	VERB
fumecheng-2369	9	22	and	and	CCONJ
fumecheng-2369	9	23	was	be	AUX
fumecheng-2369	9	24	calculated	calculate	VERB
fumecheng-2369	9	25	for	for	ADP
fumecheng-2369	9	26	purely	purely	ADV
fumecheng-2369	9	27	elastic	elastic	ADJ
fumecheng-2369	9	28	contacts	contact	NOUN
fumecheng-2369	9	29	under	under	ADP
fumecheng-2369	9	30	uniform	uniform	NOUN
fumecheng-2369	9	31	sliding	slide	VERB
fumecheng-2369	9	32	with	with	ADP
fumecheng-2369	9	33	periodic	periodic	ADJ
fumecheng-2369	9	34	normal	normal	ADJ
fumecheng-2369	9	35	loading	loading	NOUN
fumecheng-2369	9	36	.	.	PUNCT
fumecheng-2369	10	1	here	here	ADV
fumecheng-2369	10	2	we	we	PRON
fumecheng-2369	10	3	perform	perform	VERB
fumecheng-2369	10	4	a	a	DET
fumecheng-2369	10	5	similar	similar	ADJ
fumecheng-2369	10	6	analysis	analysis	NOUN
fumecheng-2369	10	7	of	of	ADP
fumecheng-2369	10	8	the	the	DET
fumecheng-2369	10	9	critical	critical	ADJ
fumecheng-2369	10	10	velocity	velocity	NOUN
fumecheng-2369	10	11	in	in	ADP
fumecheng-2369	10	12	viscoelastic	viscoelastic	ADJ
fumecheng-2369	10	13	contacts	contact	NOUN
fumecheng-2369	10	14	using	use	VERB
fumecheng-2369	10	15	a	a	DET
fumecheng-2369	10	16	kelvin	kelvin	PROPN
fumecheng-2369	10	17	material	material	NOUN
fumecheng-2369	10	18	to	to	PART
fumecheng-2369	10	19	describe	describe	VERB
fumecheng-2369	10	20	viscoelasticity	viscoelasticity	NOUN
fumecheng-2369	10	21	.	.	PUNCT
fumecheng-2369	11	1	a	a	DET
fumecheng-2369	11	2	closed	close	VERB
fumecheng-2369	11	3	-	-	PUNCT
fumecheng-2369	11	4	form	form	NOUN
fumecheng-2369	11	5	solution	solution	NOUN
fumecheng-2369	11	6	is	be	AUX
fumecheng-2369	11	7	presented	present	VERB
fumecheng-2369	11	8	,	,	PUNCT
fumecheng-2369	11	9	which	which	PRON
fumecheng-2369	11	10	contains	contain	VERB
fumecheng-2369	11	11	previously	previously	ADV
fumecheng-2369	11	12	reported	report	VERB
fumecheng-2369	11	13	results	result	NOUN
fumecheng-2369	11	14	as	as	ADP
fumecheng-2369	11	15	special	special	ADJ
fumecheng-2369	11	16	cases	case	NOUN
fumecheng-2369	11	17	.	.	PUNCT
fumecheng-2369	12	1	this	this	PRON
fumecheng-2369	12	2	paves	pave	VERB
fumecheng-2369	12	3	the	the	DET
fumecheng-2369	12	4	way	way	NOUN
fumecheng-2369	12	5	for	for	ADP
fumecheng-2369	12	6	more	more	ADV
fumecheng-2369	12	7	detailed	detailed	ADJ
fumecheng-2369	12	8	studies	study	NOUN
fumecheng-2369	12	9	of	of	ADP
fumecheng-2369	12	10	active	active	ADJ
fumecheng-2369	12	11	control	control	NOUN
fumecheng-2369	12	12	of	of	ADP
fumecheng-2369	12	13	friction	friction	NOUN
fumecheng-2369	12	14	in	in	ADP
fumecheng-2369	12	15	viscoelastic	viscoelastic	ADJ
fumecheng-2369	12	16	systems	system	NOUN
fumecheng-2369	12	17	,	,	PUNCT
fumecheng-2369	12	18	a	a	DET
fumecheng-2369	12	19	previously	previously	ADV
fumecheng-2369	12	20	neglected	neglect	VERB
fumecheng-2369	12	21	topic	topic	NOUN
fumecheng-2369	12	22	with	with	ADP
fumecheng-2369	12	23	possible	possible	ADJ
fumecheng-2369	12	24	applications	application	NOUN
fumecheng-2369	12	25	in	in	ADP
fumecheng-2369	12	26	elastomer	elastomer	NOUN
fumecheng-2369	12	27	technology	technology	NOUN
fumecheng-2369	12	28	and	and	CCONJ
fumecheng-2369	12	29	in	in	ADP
fumecheng-2369	12	30	medicine	medicine	NOUN
fumecheng-2369	12	31	.	.	PUNCT
fumecheng-2369	13	1	key	key	ADJ
fumecheng-2369	13	2	words	word	NOUN
fumecheng-2369	13	3	:	:	PUNCT
fumecheng-2369	13	4	active	active	ADJ
fumecheng-2369	13	5	control	control	NOUN
fumecheng-2369	13	6	of	of	ADP
fumecheng-2369	13	7	friction	friction	NOUN
fumecheng-2369	13	8	,	,	PUNCT
fumecheng-2369	13	9	ultrasonic	ultrasonic	ADJ
fumecheng-2369	13	10	vibration	vibration	NOUN
fumecheng-2369	13	11	,	,	PUNCT
fumecheng-2369	13	12	viscoelastic	viscoelastic	ADJ
fumecheng-2369	13	13	contact	contact	NOUN
fumecheng-2369	13	14	,	,	PUNCT
fumecheng-2369	13	15	critical	critical	ADJ
fumecheng-2369	13	16	velocity	velocity	NOUN
fumecheng-2369	13	17	received	receive	VERB
fumecheng-2369	13	18	october	october	PROPN
fumecheng-2369	13	19	22	22	NUM
fumecheng-2369	13	20	,	,	PUNCT
fumecheng-2369	13	21	2016	2016	NUM
fumecheng-2369	13	22	/	/	SYM
fumecheng-2369	13	23	accepted	accept	VERB
fumecheng-2369	13	24	november	november	PROPN
fumecheng-2369	13	25	30	30	NUM
fumecheng-2369	13	26	,	,	PUNCT
fumecheng-2369	13	27	2016	2016	NUM
fumecheng-2369	13	28	corresponding	correspond	VERB
fumecheng-2369	13	29	author	author	NOUN
fumecheng-2369	13	30	:	:	PUNCT
fumecheng-2369	13	31	mikhail	mikhail	PROPN
fumecheng-2369	13	32	popov	popov	PROPN
fumecheng-2369	13	33	technische	technische	PROPN
fumecheng-2369	13	34	universität	universität	PROPN
fumecheng-2369	13	35	berlin	berlin	PROPN
fumecheng-2369	13	36	,	,	PUNCT
fumecheng-2369	13	37	str	str	NOUN
fumecheng-2369	13	38	.	.	PUNCT
fumecheng-2369	14	1	des	des	PROPN
fumecheng-2369	14	2	17	17	NUM
fumecheng-2369	14	3	.	.	PUNCT
fumecheng-2369	15	1	juni	juni	PROPN
fumecheng-2369	15	2	135	135	NUM
fumecheng-2369	15	3	,	,	PUNCT
fumecheng-2369	15	4	10623	10623	NUM
fumecheng-2369	15	5	berlin	berlin	PROPN
fumecheng-2369	15	6	e-mail:m@popov.name	e-mail:m@popov.name	PROPN
fumecheng-2369	15	7	336	336	NUM
fumecheng-2369	15	8	m.	m.	NOUN
fumecheng-2369	15	9	popov	popov	NOUN
fumecheng-2369	15	10	1	1	NUM
fumecheng-2369	15	11	.	.	PUNCT
fumecheng-2369	16	1	introduction	introduction	VERB
fumecheng-2369	16	2	the	the	DET
fumecheng-2369	16	3	reduction	reduction	NOUN
fumecheng-2369	16	4	of	of	ADP
fumecheng-2369	16	5	static	static	ADJ
fumecheng-2369	16	6	and	and	CCONJ
fumecheng-2369	16	7	sliding	slide	VERB
fumecheng-2369	16	8	friction	friction	NOUN
fumecheng-2369	16	9	by	by	ADP
fumecheng-2369	16	10	ultrasonic	ultrasonic	ADJ
fumecheng-2369	16	11	oscillation	oscillation	NOUN
fumecheng-2369	16	12	in	in	ADP
fumecheng-2369	16	13	various	various	ADJ
fumecheng-2369	16	14	directions	direction	NOUN
fumecheng-2369	16	15	is	be	AUX
fumecheng-2369	16	16	a	a	DET
fumecheng-2369	16	17	well	well	ADV
fumecheng-2369	16	18	-	-	PUNCT
fumecheng-2369	16	19	known	know	VERB
fumecheng-2369	16	20	phenomenon	phenomenon	NOUN
fumecheng-2369	16	21	with	with	ADP
fumecheng-2369	16	22	many	many	ADJ
fumecheng-2369	16	23	applications	application	NOUN
fumecheng-2369	16	24	ranging	range	VERB
fumecheng-2369	16	25	from	from	ADP
fumecheng-2369	16	26	wire	wire	NOUN
fumecheng-2369	16	27	drawing	drawing	NOUN
fumecheng-2369	16	28	and	and	CCONJ
fumecheng-2369	16	29	press	press	NOUN
fumecheng-2369	16	30	forming	forming	NOUN
fumecheng-2369	16	31	,	,	PUNCT
fumecheng-2369	16	32	stabilization	stabilization	NOUN
fumecheng-2369	16	33	of	of	ADP
fumecheng-2369	16	34	system	system	NOUN
fumecheng-2369	16	35	dynamics	dynamic	NOUN
fumecheng-2369	16	36	,	,	PUNCT
fumecheng-2369	16	37	as	as	ADP
fumecheng-2369	16	38	in	in	ADP
fumecheng-2369	16	39	brake	brake	NOUN
fumecheng-2369	16	40	squeal	squeal	NOUN
fumecheng-2369	16	41	suppression	suppression	NOUN
fumecheng-2369	16	42	,	,	PUNCT
fumecheng-2369	16	43	and	and	CCONJ
fumecheng-2369	16	44	production	production	NOUN
fumecheng-2369	16	45	of	of	ADP
fumecheng-2369	16	46	directed	direct	VERB
fumecheng-2369	16	47	motion	motion	NOUN
fumecheng-2369	16	48	,	,	PUNCT
fumecheng-2369	16	49	as	as	ADP
fumecheng-2369	16	50	in	in	ADP
fumecheng-2369	16	51	ultrasonic	ultrasonic	ADJ
fumecheng-2369	16	52	motors	motor	NOUN
fumecheng-2369	16	53	and	and	CCONJ
fumecheng-2369	16	54	linear	linear	ADJ
fumecheng-2369	16	55	actuators	actuator	NOUN
fumecheng-2369	16	56	.	.	PUNCT
fumecheng-2369	17	1	the	the	DET
fumecheng-2369	17	2	effect	effect	NOUN
fumecheng-2369	17	3	has	have	AUX
fumecheng-2369	17	4	been	be	AUX
fumecheng-2369	17	5	studied	study	VERB
fumecheng-2369	17	6	for	for	ADP
fumecheng-2369	17	7	several	several	ADJ
fumecheng-2369	17	8	decades	decade	NOUN
fumecheng-2369	17	9	,	,	PUNCT
fumecheng-2369	17	10	both	both	PRON
fumecheng-2369	17	11	experimentally	experimentally	ADV
fumecheng-2369	17	12	and	and	CCONJ
fumecheng-2369	17	13	theoretically	theoretically	ADV
fumecheng-2369	17	14	.	.	PUNCT
fumecheng-2369	18	1	among	among	ADP
fumecheng-2369	18	2	the	the	DET
fumecheng-2369	18	3	proposed	propose	VERB
fumecheng-2369	18	4	explanations	explanation	NOUN
fumecheng-2369	18	5	,	,	PUNCT
fumecheng-2369	18	6	microscopic	microscopic	ADJ
fumecheng-2369	18	7	theories	theory	NOUN
fumecheng-2369	18	8	have	have	AUX
fumecheng-2369	18	9	historically	historically	ADV
fumecheng-2369	18	10	been	be	AUX
fumecheng-2369	18	11	prevalent	prevalent	ADJ
fumecheng-2369	18	12	.	.	PUNCT
fumecheng-2369	19	1	e.g.	e.g.	ADV
fumecheng-2369	19	2	zaloj	zaloj	VERB
fumecheng-2369	19	3	et	et	NOUN
fumecheng-2369	19	4	al	al	PROPN
fumecheng-2369	19	5	.	.	PUNCT
fumecheng-2369	20	1	[	[	X
fumecheng-2369	20	2	1	1	X
fumecheng-2369	20	3	]	]	PUNCT
fumecheng-2369	20	4	suggest	suggest	VERB
fumecheng-2369	20	5	that	that	SCONJ
fumecheng-2369	20	6	the	the	DET
fumecheng-2369	20	7	effect	effect	NOUN
fumecheng-2369	20	8	may	may	AUX
fumecheng-2369	20	9	be	be	AUX
fumecheng-2369	20	10	due	due	ADJ
fumecheng-2369	20	11	to	to	ADP
fumecheng-2369	20	12	the	the	DET
fumecheng-2369	20	13	dilatation	dilatation	NOUN
fumecheng-2369	20	14	caused	cause	VERB
fumecheng-2369	20	15	by	by	ADP
fumecheng-2369	20	16	sliding	slide	VERB
fumecheng-2369	20	17	.	.	PUNCT
fumecheng-2369	21	1	v.	v.	ADP
fumecheng-2369	21	2	popov	popov	PROPN
fumecheng-2369	21	3	et	et	PROPN
fumecheng-2369	21	4	al	al	PROPN
fumecheng-2369	21	5	.	.	PROPN
fumecheng-2369	21	6	point	point	NOUN
fumecheng-2369	21	7	to	to	ADP
fumecheng-2369	21	8	the	the	DET
fumecheng-2369	21	9	possible	possible	ADJ
fumecheng-2369	21	10	importance	importance	NOUN
fumecheng-2369	21	11	of	of	ADP
fumecheng-2369	21	12	the	the	DET
fumecheng-2369	21	13	microscopic	microscopic	ADJ
fumecheng-2369	21	14	interaction	interaction	NOUN
fumecheng-2369	21	15	potential	potential	NOUN
fumecheng-2369	22	1	[	[	X
fumecheng-2369	22	2	2	2	NUM
fumecheng-2369	22	3	]	]	PUNCT
fumecheng-2369	22	4	.	.	PUNCT
fumecheng-2369	23	1	although	although	SCONJ
fumecheng-2369	23	2	plausible	plausible	ADJ
fumecheng-2369	23	3	,	,	PUNCT
fumecheng-2369	23	4	microscopic	microscopic	ADJ
fumecheng-2369	23	5	models	model	NOUN
fumecheng-2369	23	6	could	could	AUX
fumecheng-2369	23	7	never	never	ADV
fumecheng-2369	23	8	achieve	achieve	VERB
fumecheng-2369	23	9	good	good	ADJ
fumecheng-2369	23	10	,	,	PUNCT
fumecheng-2369	23	11	quantitative	quantitative	ADJ
fumecheng-2369	23	12	correspondence	correspondence	NOUN
fumecheng-2369	23	13	between	between	ADP
fumecheng-2369	23	14	theoretical	theoretical	ADJ
fumecheng-2369	23	15	predictions	prediction	NOUN
fumecheng-2369	23	16	and	and	CCONJ
fumecheng-2369	23	17	experimental	experimental	ADJ
fumecheng-2369	23	18	results	result	NOUN
fumecheng-2369	23	19	,	,	PUNCT
fumecheng-2369	23	20	e.g.	e.g.	ADV
fumecheng-2369	23	21	[	[	X
fumecheng-2369	23	22	3	3	NUM
fumecheng-2369	23	23	]	]	PUNCT
fumecheng-2369	23	24	.	.	PUNCT
fumecheng-2369	24	1	opposite	opposite	ADJ
fumecheng-2369	24	2	to	to	ADP
fumecheng-2369	24	3	that	that	PRON
fumecheng-2369	24	4	stand	stand	VERB
fumecheng-2369	24	5	purely	purely	ADV
fumecheng-2369	24	6	macroscopic	macroscopic	ADJ
fumecheng-2369	24	7	models	model	NOUN
fumecheng-2369	24	8	,	,	PUNCT
fumecheng-2369	24	9	which	which	PRON
fumecheng-2369	24	10	explain	explain	VERB
fumecheng-2369	24	11	the	the	DET
fumecheng-2369	24	12	phenomenon	phenomenon	NOUN
fumecheng-2369	24	13	using	use	VERB
fumecheng-2369	24	14	macroscopic	macroscopic	ADJ
fumecheng-2369	24	15	contact	contact	NOUN
fumecheng-2369	24	16	mechanics	mechanic	NOUN
fumecheng-2369	24	17	or	or	CCONJ
fumecheng-2369	24	18	system	system	NOUN
fumecheng-2369	24	19	dynamics	dynamic	NOUN
fumecheng-2369	24	20	.	.	PUNCT
fumecheng-2369	25	1	several	several	ADJ
fumecheng-2369	25	2	system	system	NOUN
fumecheng-2369	25	3	configurations	configuration	NOUN
fumecheng-2369	25	4	have	have	AUX
fumecheng-2369	25	5	been	be	AUX
fumecheng-2369	25	6	considered	consider	VERB
fumecheng-2369	25	7	from	from	ADP
fumecheng-2369	25	8	that	that	DET
fumecheng-2369	25	9	perspective	perspective	NOUN
fumecheng-2369	25	10	[	[	X
fumecheng-2369	25	11	3	3	NUM
fumecheng-2369	25	12	,	,	PUNCT
fumecheng-2369	25	13	4	4	NUM
fumecheng-2369	25	14	,	,	PUNCT
fumecheng-2369	25	15	5	5	NUM
fumecheng-2369	25	16	]	]	PUNCT
fumecheng-2369	25	17	and	and	CCONJ
fumecheng-2369	25	18	it	it	PRON
fumecheng-2369	25	19	was	be	AUX
fumecheng-2369	25	20	found	find	VERB
fumecheng-2369	25	21	that	that	SCONJ
fumecheng-2369	25	22	the	the	DET
fumecheng-2369	25	23	macroscopic	macroscopic	ADJ
fumecheng-2369	25	24	models	model	NOUN
fumecheng-2369	25	25	can	can	AUX
fumecheng-2369	25	26	describe	describe	VERB
fumecheng-2369	25	27	the	the	DET
fumecheng-2369	25	28	observed	observe	VERB
fumecheng-2369	25	29	behavior	behavior	NOUN
fumecheng-2369	25	30	of	of	ADP
fumecheng-2369	25	31	the	the	DET
fumecheng-2369	25	32	systems	system	NOUN
fumecheng-2369	25	33	without	without	ADP
fumecheng-2369	25	34	fitting	fitting	ADJ
fumecheng-2369	25	35	parameters	parameter	NOUN
fumecheng-2369	25	36	.	.	PUNCT
fumecheng-2369	26	1	this	this	DET
fumecheng-2369	26	2	result	result	NOUN
fumecheng-2369	26	3	is	be	AUX
fumecheng-2369	26	4	in	in	ADP
fumecheng-2369	26	5	fact	fact	NOUN
fumecheng-2369	26	6	somewhat	somewhat	ADV
fumecheng-2369	26	7	surprising	surprising	ADJ
fumecheng-2369	26	8	,	,	PUNCT
fumecheng-2369	26	9	considering	consider	VERB
fumecheng-2369	26	10	that	that	SCONJ
fumecheng-2369	26	11	these	these	DET
fumecheng-2369	26	12	macroscopic	macroscopic	ADJ
fumecheng-2369	26	13	theories	theory	NOUN
fumecheng-2369	26	14	assume	assume	VERB
fumecheng-2369	26	15	a	a	DET
fumecheng-2369	26	16	constant	constant	ADJ
fumecheng-2369	26	17	microscopic	microscopic	ADJ
fumecheng-2369	26	18	coefficient	coefficient	NOUN
fumecheng-2369	26	19	of	of	ADP
fumecheng-2369	26	20	friction	friction	NOUN
fumecheng-2369	26	21	and	and	CCONJ
fumecheng-2369	26	22	a	a	DET
fumecheng-2369	26	23	friction	friction	NOUN
fumecheng-2369	26	24	law	law	NOUN
fumecheng-2369	26	25	of	of	ADP
fumecheng-2369	26	26	the	the	DET
fumecheng-2369	26	27	form	form	NOUN
fumecheng-2369	26	28	ff	ff	NOUN
fumecheng-2369	26	29	=	=	SYM
fumecheng-2369	26	30	0fn	0fn	NOUN
fumecheng-2369	26	31	.	.	PUNCT
fumecheng-2369	27	1	when	when	SCONJ
fumecheng-2369	27	2	the	the	DET
fumecheng-2369	27	3	average	average	ADJ
fumecheng-2369	27	4	force	force	NOUN
fumecheng-2369	27	5	of	of	ADP
fumecheng-2369	27	6	friction	friction	NOUN
fumecheng-2369	27	7	is	be	AUX
fumecheng-2369	27	8	determined	determine	VERB
fumecheng-2369	27	9	by	by	ADP
fumecheng-2369	27	10	integrating	integrate	VERB
fumecheng-2369	27	11	the	the	DET
fumecheng-2369	27	12	force	force	NOUN
fumecheng-2369	27	13	of	of	ADP
fumecheng-2369	27	14	friction	friction	NOUN
fumecheng-2369	27	15	over	over	ADP
fumecheng-2369	27	16	time	time	NOUN
fumecheng-2369	27	17	(	(	PUNCT
fumecheng-2369	27	18	or	or	CCONJ
fumecheng-2369	27	19	integrating	integrate	VERB
fumecheng-2369	27	20	stress	stress	NOUN
fumecheng-2369	27	21	over	over	ADP
fumecheng-2369	27	22	time	time	NOUN
fumecheng-2369	27	23	and	and	CCONJ
fumecheng-2369	27	24	contact	contact	NOUN
fumecheng-2369	27	25	area	area	NOUN
fumecheng-2369	27	26	)	)	PUNCT
fumecheng-2369	27	27	and	and	CCONJ
fumecheng-2369	27	28	dividing	divide	VERB
fumecheng-2369	27	29	by	by	ADP
fumecheng-2369	27	30	the	the	DET
fumecheng-2369	27	31	integral	integral	NOUN
fumecheng-2369	27	32	of	of	ADP
fumecheng-2369	27	33	the	the	DET
fumecheng-2369	27	34	normal	normal	ADJ
fumecheng-2369	27	35	force	force	NOUN
fumecheng-2369	27	36	,	,	PUNCT
fumecheng-2369	27	37	the	the	DET
fumecheng-2369	27	38	direct	direct	ADJ
fumecheng-2369	27	39	proportionality	proportionality	NOUN
fumecheng-2369	27	40	of	of	ADP
fumecheng-2369	27	41	the	the	DET
fumecheng-2369	27	42	assumed	assumed	ADJ
fumecheng-2369	27	43	law	law	NOUN
fumecheng-2369	27	44	of	of	ADP
fumecheng-2369	27	45	friction	friction	NOUN
fumecheng-2369	27	46	will	will	AUX
fumecheng-2369	27	47	insure	insure	VERB
fumecheng-2369	27	48	that	that	SCONJ
fumecheng-2369	27	49	the	the	DET
fumecheng-2369	27	50	integrals	integral	NOUN
fumecheng-2369	27	51	of	of	ADP
fumecheng-2369	27	52	normal	normal	ADJ
fumecheng-2369	27	53	force	force	NOUN
fumecheng-2369	27	54	will	will	AUX
fumecheng-2369	27	55	cancel	cancel	VERB
fumecheng-2369	27	56	out	out	ADP
fumecheng-2369	27	57	,	,	PUNCT
fumecheng-2369	27	58	with	with	SCONJ
fumecheng-2369	27	59	the	the	DET
fumecheng-2369	27	60	end	end	NOUN
fumecheng-2369	27	61	result	result	NOUN
fumecheng-2369	27	62	that	that	SCONJ
fumecheng-2369	27	63	the	the	DET
fumecheng-2369	27	64	average	average	ADJ
fumecheng-2369	27	65	coefficient	coefficient	NOUN
fumecheng-2369	27	66	of	of	ADP
fumecheng-2369	27	67	friction	friction	NOUN
fumecheng-2369	27	68			NOUN
fumecheng-2369	27	69	must	must	AUX
fumecheng-2369	27	70	always	always	ADV
fumecheng-2369	27	71	be	be	AUX
fumecheng-2369	27	72	equal	equal	ADJ
fumecheng-2369	27	73	to	to	ADP
fumecheng-2369	27	74	0	0	PROPN
fumecheng-2369	27	75	.	.	PUNCT
fumecheng-2369	28	1	this	this	DET
fumecheng-2369	28	2	reasoning	reasoning	NOUN
fumecheng-2369	28	3	,	,	PUNCT
fumecheng-2369	28	4	however	however	ADV
fumecheng-2369	28	5	,	,	PUNCT
fumecheng-2369	28	6	is	be	AUX
fumecheng-2369	28	7	subtly	subtly	ADV
fumecheng-2369	28	8	flawed	flawed	ADJ
fumecheng-2369	28	9	,	,	PUNCT
fumecheng-2369	28	10	in	in	SCONJ
fumecheng-2369	28	11	that	that	SCONJ
fumecheng-2369	28	12	it	it	PRON
fumecheng-2369	28	13	assumes	assume	VERB
fumecheng-2369	28	14	sliding	slide	VERB
fumecheng-2369	28	15	in	in	ADP
fumecheng-2369	28	16	one	one	NUM
fumecheng-2369	28	17	direction	direction	NOUN
fumecheng-2369	28	18	with	with	ADP
fumecheng-2369	28	19	a	a	DET
fumecheng-2369	28	20	nonzero	nonzero	ADJ
fumecheng-2369	28	21	velocity	velocity	NOUN
fumecheng-2369	28	22	.	.	PUNCT
fumecheng-2369	29	1	it	it	PRON
fumecheng-2369	29	2	is	be	AUX
fumecheng-2369	29	3	also	also	ADV
fumecheng-2369	29	4	possible	possible	ADJ
fumecheng-2369	29	5	for	for	SCONJ
fumecheng-2369	29	6	the	the	DET
fumecheng-2369	29	7	body	body	NOUN
fumecheng-2369	29	8	to	to	PART
fumecheng-2369	29	9	temporarily	temporarily	ADV
fumecheng-2369	29	10	cease	cease	VERB
fumecheng-2369	29	11	motion	motion	NOUN
fumecheng-2369	29	12	(	(	PUNCT
fumecheng-2369	29	13	e.g.	e.g.	ADV
fumecheng-2369	29	14	due	due	ADJ
fumecheng-2369	29	15	to	to	ADP
fumecheng-2369	29	16	increasing	increase	VERB
fumecheng-2369	29	17	normal	normal	ADJ
fumecheng-2369	29	18	force	force	NOUN
fumecheng-2369	29	19	or	or	CCONJ
fumecheng-2369	29	20	more	more	ADV
fumecheng-2369	29	21	complicated	complicated	ADJ
fumecheng-2369	29	22	reasons	reason	NOUN
fumecheng-2369	29	23	relating	relate	VERB
fumecheng-2369	29	24	to	to	ADP
fumecheng-2369	29	25	system	system	NOUN
fumecheng-2369	29	26	dynamics	dynamic	NOUN
fumecheng-2369	29	27	)	)	PUNCT
fumecheng-2369	29	28	.	.	PUNCT
fumecheng-2369	30	1	during	during	ADP
fumecheng-2369	30	2	such	such	ADJ
fumecheng-2369	30	3	stick	stick	NOUN
fumecheng-2369	30	4	phases	phase	NOUN
fumecheng-2369	30	5	,	,	PUNCT
fumecheng-2369	30	6	the	the	DET
fumecheng-2369	30	7	law	law	NOUN
fumecheng-2369	30	8	of	of	ADP
fumecheng-2369	30	9	friction	friction	NOUN
fumecheng-2369	30	10	needs	need	VERB
fumecheng-2369	30	11	to	to	PART
fumecheng-2369	30	12	be	be	AUX
fumecheng-2369	30	13	written	write	VERB
fumecheng-2369	30	14	in	in	ADP
fumecheng-2369	30	15	its	its	PRON
fumecheng-2369	30	16	static	static	ADJ
fumecheng-2369	30	17	form	form	NOUN
fumecheng-2369	30	18	:	:	PUNCT
fumecheng-2369	30	19	ff	ff	NOUN
fumecheng-2369	30	20			NUM
fumecheng-2369	30	21	0fn	0fn	NOUN
fumecheng-2369	30	22	.	.	PUNCT
fumecheng-2369	31	1	note	note	VERB
fumecheng-2369	31	2	the	the	DET
fumecheng-2369	31	3	less	less	ADJ
fumecheng-2369	31	4	than	than	ADP
fumecheng-2369	31	5	or	or	CCONJ
fumecheng-2369	31	6	equal	equal	ADJ
fumecheng-2369	31	7	in	in	ADP
fumecheng-2369	31	8	this	this	DET
fumecheng-2369	31	9	formula	formula	NOUN
fumecheng-2369	31	10	,	,	PUNCT
fumecheng-2369	31	11	which	which	PRON
fumecheng-2369	31	12	breaks	break	VERB
fumecheng-2369	31	13	the	the	DET
fumecheng-2369	31	14	proportionality	proportionality	NOUN
fumecheng-2369	31	15	and	and	CCONJ
fumecheng-2369	31	16	allows	allow	VERB
fumecheng-2369	31	17			NOUN
fumecheng-2369	31	18	to	to	PART
fumecheng-2369	31	19	be	be	AUX
fumecheng-2369	31	20	less	less	ADJ
fumecheng-2369	31	21	than	than	ADP
fumecheng-2369	31	22	0	0	PROPN
fumecheng-2369	31	23	.	.	PUNCT
fumecheng-2369	32	1	to	to	ADP
fumecheng-2369	32	2	the	the	DET
fumecheng-2369	32	3	author	author	NOUN
fumecheng-2369	32	4	’s	’s	PART
fumecheng-2369	32	5	knowledge	knowledge	NOUN
fumecheng-2369	32	6	,	,	PUNCT
fumecheng-2369	32	7	the	the	DET
fumecheng-2369	32	8	possibility	possibility	NOUN
fumecheng-2369	32	9	that	that	SCONJ
fumecheng-2369	32	10	the	the	DET
fumecheng-2369	32	11	influence	influence	NOUN
fumecheng-2369	32	12	of	of	ADP
fumecheng-2369	32	13	normal	normal	ADJ
fumecheng-2369	32	14	oscillations	oscillation	NOUN
fumecheng-2369	32	15	on	on	ADP
fumecheng-2369	32	16	sliding	slide	VERB
fumecheng-2369	32	17	friction	friction	NOUN
fumecheng-2369	32	18	may	may	AUX
fumecheng-2369	32	19	be	be	AUX
fumecheng-2369	32	20	explained	explain	VERB
fumecheng-2369	32	21	entirely	entirely	ADV
fumecheng-2369	32	22	by	by	ADP
fumecheng-2369	32	23	the	the	DET
fumecheng-2369	32	24	presence	presence	NOUN
fumecheng-2369	32	25	of	of	ADP
fumecheng-2369	32	26	intermittent	intermittent	ADJ
fumecheng-2369	32	27	stick	stick	NOUN
fumecheng-2369	32	28	phases	phase	NOUN
fumecheng-2369	32	29	has	have	AUX
fumecheng-2369	32	30	not	not	PART
fumecheng-2369	32	31	been	be	AUX
fumecheng-2369	32	32	made	make	VERB
fumecheng-2369	32	33	explicit	explicit	ADJ
fumecheng-2369	32	34	before	before	ADP
fumecheng-2369	32	35	the	the	DET
fumecheng-2369	32	36	publication	publication	NOUN
fumecheng-2369	32	37	of	of	ADP
fumecheng-2369	32	38	the	the	DET
fumecheng-2369	32	39	two	two	NUM
fumecheng-2369	32	40	part	part	NOUN
fumecheng-2369	32	41	-	-	PUNCT
fumecheng-2369	32	42	study	study	NOUN
fumecheng-2369	32	43	[	[	X
fumecheng-2369	32	44	6	6	NUM
fumecheng-2369	32	45	,	,	PUNCT
fumecheng-2369	32	46	7	7	NUM
fumecheng-2369	32	47	]	]	PUNCT
fumecheng-2369	32	48	.	.	PUNCT
fumecheng-2369	33	1	in	in	ADP
fumecheng-2369	33	2	these	these	DET
fumecheng-2369	33	3	papers	paper	NOUN
fumecheng-2369	33	4	,	,	PUNCT
fumecheng-2369	33	5	the	the	DET
fumecheng-2369	33	6	stick	stick	NOUN
fumecheng-2369	33	7	-	-	PUNCT
fumecheng-2369	33	8	induced	induce	VERB
fumecheng-2369	33	9	reduction	reduction	NOUN
fumecheng-2369	33	10	of	of	ADP
fumecheng-2369	33	11	friction	friction	NOUN
fumecheng-2369	33	12	force	force	NOUN
fumecheng-2369	33	13	was	be	AUX
fumecheng-2369	33	14	studied	study	VERB
fumecheng-2369	33	15	in	in	ADP
fumecheng-2369	33	16	a	a	DET
fumecheng-2369	33	17	displacementcontrolled	displacementcontrolle	VERB
fumecheng-2369	33	18	setting	setting	NOUN
fumecheng-2369	33	19	with	with	ADP
fumecheng-2369	33	20	and	and	CCONJ
fumecheng-2369	33	21	without	without	ADP
fumecheng-2369	33	22	in	in	ADP
fumecheng-2369	33	23	-	-	PUNCT
fumecheng-2369	33	24	plane	plane	NOUN
fumecheng-2369	33	25	system	system	NOUN
fumecheng-2369	33	26	dynamics	dynamic	NOUN
fumecheng-2369	33	27	.	.	PUNCT
fumecheng-2369	34	1	although	although	SCONJ
fumecheng-2369	34	2	a	a	DET
fumecheng-2369	34	3	closed	close	VERB
fumecheng-2369	34	4	-	-	PUNCT
fumecheng-2369	34	5	form	form	NOUN
fumecheng-2369	34	6	solution	solution	NOUN
fumecheng-2369	34	7	for	for	ADP
fumecheng-2369	34	8	the	the	DET
fumecheng-2369	34	9	actual	actual	ADJ
fumecheng-2369	34	10	force	force	NOUN
fumecheng-2369	34	11	of	of	ADP
fumecheng-2369	34	12	friction	friction	NOUN
fumecheng-2369	34	13	under	under	ADP
fumecheng-2369	34	14	the	the	DET
fumecheng-2369	34	15	action	action	NOUN
fumecheng-2369	34	16	of	of	ADP
fumecheng-2369	34	17	normal	normal	ADJ
fumecheng-2369	34	18	vibrations	vibration	NOUN
fumecheng-2369	34	19	does	do	AUX
fumecheng-2369	34	20	not	not	PART
fumecheng-2369	34	21	exist	exist	VERB
fumecheng-2369	34	22	in	in	ADP
fumecheng-2369	34	23	either	either	DET
fumecheng-2369	34	24	case	case	NOUN
fumecheng-2369	34	25	,	,	PUNCT
fumecheng-2369	34	26	it	it	PRON
fumecheng-2369	34	27	has	have	AUX
fumecheng-2369	34	28	turned	turn	VERB
fumecheng-2369	34	29	out	out	ADP
fumecheng-2369	34	30	to	to	PART
fumecheng-2369	34	31	be	be	AUX
fumecheng-2369	34	32	possible	possible	ADJ
fumecheng-2369	34	33	to	to	PART
fumecheng-2369	34	34	calculate	calculate	VERB
fumecheng-2369	34	35	the	the	DET
fumecheng-2369	34	36	critical	critical	ADJ
fumecheng-2369	34	37	velocity	velocity	NOUN
fumecheng-2369	34	38	vc	vc	NOUN
fumecheng-2369	34	39	for	for	ADP
fumecheng-2369	34	40	a	a	DET
fumecheng-2369	34	41	broad	broad	ADJ
fumecheng-2369	34	42	class	class	NOUN
fumecheng-2369	34	43	of	of	ADP
fumecheng-2369	34	44	problems	problem	NOUN
fumecheng-2369	34	45	.	.	PUNCT
fumecheng-2369	35	1	this	this	DET
fumecheng-2369	35	2	critical	critical	ADJ
fumecheng-2369	35	3	velocity	velocity	NOUN
fumecheng-2369	35	4	refers	refer	VERB
fumecheng-2369	35	5	to	to	ADP
fumecheng-2369	35	6	the	the	DET
fumecheng-2369	35	7	maximum	maximum	ADJ
fumecheng-2369	35	8	sliding	slide	VERB
fumecheng-2369	35	9	velocity	velocity	NOUN
fumecheng-2369	35	10	,	,	PUNCT
fumecheng-2369	35	11	above	above	ADP
fumecheng-2369	35	12	which	which	DET
fumecheng-2369	35	13	vibration	vibration	NOUN
fumecheng-2369	35	14	no	no	ADV
fumecheng-2369	35	15	longer	long	ADV
fumecheng-2369	35	16	has	have	VERB
fumecheng-2369	35	17	any	any	DET
fumecheng-2369	35	18	influence	influence	NOUN
fumecheng-2369	35	19	on	on	ADP
fumecheng-2369	35	20	friction	friction	NOUN
fumecheng-2369	35	21	(	(	PUNCT
fumecheng-2369	35	22	at	at	ADP
fumecheng-2369	35	23	a	a	DET
fumecheng-2369	35	24	given	give	VERB
fumecheng-2369	35	25	frequency	frequency	NOUN
fumecheng-2369	35	26	and	and	CCONJ
fumecheng-2369	35	27	amplitude	amplitude	NOUN
fumecheng-2369	35	28	)	)	PUNCT
fumecheng-2369	35	29	.	.	PUNCT
fumecheng-2369	36	1	this	this	PRON
fumecheng-2369	36	2	is	be	AUX
fumecheng-2369	36	3	illustrated	illustrate	VERB
fumecheng-2369	36	4	in	in	ADP
fumecheng-2369	36	5	fig	fig	NOUN
fumecheng-2369	36	6	.	.	PUNCT
fumecheng-2369	37	1	1	1	NUM
fumecheng-2369	37	2	,	,	PUNCT
fumecheng-2369	37	3	which	which	PRON
fumecheng-2369	37	4	qualitatively	qualitatively	ADV
fumecheng-2369	37	5	describes	describe	VERB
fumecheng-2369	37	6	the	the	DET
fumecheng-2369	37	7	behavior	behavior	NOUN
fumecheng-2369	37	8	of	of	ADP
fumecheng-2369	37	9	the	the	DET
fumecheng-2369	37	10	average	average	ADJ
fumecheng-2369	37	11	coefficient	coefficient	NOUN
fumecheng-2369	37	12	of	of	ADP
fumecheng-2369	37	13	friction	friction	NOUN
fumecheng-2369	37	14	,	,	PUNCT
fumecheng-2369	37	15	as	as	SCONJ
fumecheng-2369	37	16	it	it	PRON
fumecheng-2369	37	17	increases	increase	VERB
fumecheng-2369	37	18	from	from	ADP
fumecheng-2369	37	19	its	its	PRON
fumecheng-2369	37	20	static	static	ADJ
fumecheng-2369	37	21	value	value	NOUN
fumecheng-2369	37	22	to	to	ADP
fumecheng-2369	37	23	0	0	PROPN
fumecheng-2369	37	24	with	with	ADP
fumecheng-2369	37	25	increasing	increase	VERB
fumecheng-2369	37	26	sliding	slide	VERB
fumecheng-2369	37	27	velocity	velocity	NOUN
fumecheng-2369	37	28	.	.	PUNCT
fumecheng-2369	38	1	in	in	ADP
fumecheng-2369	38	2	the	the	DET
fumecheng-2369	38	3	theory	theory	NOUN
fumecheng-2369	38	4	presented	present	VERB
fumecheng-2369	38	5	in	in	ADP
fumecheng-2369	38	6	[	[	X
fumecheng-2369	38	7	6	6	NUM
fumecheng-2369	38	8	]	]	PUNCT
fumecheng-2369	38	9	it	it	PRON
fumecheng-2369	38	10	was	be	AUX
fumecheng-2369	38	11	argued	argue	VERB
fumecheng-2369	38	12	that	that	SCONJ
fumecheng-2369	38	13	this	this	DET
fumecheng-2369	38	14	critical	critical	ADJ
fumecheng-2369	38	15	velocity	velocity	NOUN
fumecheng-2369	38	16	is	be	AUX
fumecheng-2369	38	17	related	relate	VERB
fumecheng-2369	38	18	to	to	ADP
fumecheng-2369	38	19	the	the	DET
fumecheng-2369	38	20	disappearance	disappearance	NOUN
fumecheng-2369	38	21	of	of	ADP
fumecheng-2369	38	22	stick	stick	NOUN
fumecheng-2369	38	23	in	in	ADP
fumecheng-2369	38	24	the	the	DET
fumecheng-2369	38	25	contact	contact	NOUN
fumecheng-2369	38	26	.	.	PUNCT
fumecheng-2369	39	1	also	also	ADV
fumecheng-2369	39	2	in	in	ADP
fumecheng-2369	39	3	[	[	X
fumecheng-2369	39	4	6	6	NUM
fumecheng-2369	39	5	]	]	PUNCT
fumecheng-2369	39	6	,	,	PUNCT
fumecheng-2369	39	7	the	the	DET
fumecheng-2369	39	8	following	follow	VERB
fumecheng-2369	39	9	expression	expression	NOUN
fumecheng-2369	39	10	was	be	AUX
fumecheng-2369	39	11	obtained	obtain	VERB
fumecheng-2369	39	12	for	for	ADP
fumecheng-2369	39	13	the	the	DET
fumecheng-2369	39	14	critical	critical	ADJ
fumecheng-2369	39	15	velocity	velocity	NOUN
fumecheng-2369	39	16	in	in	ADP
fumecheng-2369	39	17	an	an	DET
fumecheng-2369	39	18	entirely	entirely	ADV
fumecheng-2369	39	19	displacement	displacement	NOUN
fumecheng-2369	39	20	-	-	PUNCT
fumecheng-2369	39	21	controlled	control	VERB
fumecheng-2369	39	22	system	system	NOUN
fumecheng-2369	39	23	:	:	PUNCT
fumecheng-2369	39	24	0	0	PUNCT
fumecheng-2369	40	1	*	*	PUNCT
fumecheng-2369	40	2	c	c	NOUN
fumecheng-2369	40	3	z	z	NOUN
fumecheng-2369	40	4	*	*	PUNCT
fumecheng-2369	41	1	e	e	X
fumecheng-2369	41	2	v	v	X
fumecheng-2369	41	3	u	u	PROPN
fumecheng-2369	41	4	g	g	PROPN
fumecheng-2369	41	5			PROPN
fumecheng-2369	41	6			NOUN
fumecheng-2369	41	7			PUNCT
fumecheng-2369	41	8	,	,	PUNCT
fumecheng-2369	41	9	(	(	PUNCT
fumecheng-2369	41	10	1	1	X
fumecheng-2369	41	11	)	)	PUNCT
fumecheng-2369	41	12	critical	critical	ADJ
fumecheng-2369	41	13	velocity	velocity	NOUN
fumecheng-2369	41	14	of	of	ADP
fumecheng-2369	41	15	controllability	controllability	NOUN
fumecheng-2369	41	16	of	of	ADP
fumecheng-2369	41	17	sliding	slide	VERB
fumecheng-2369	41	18	friction	friction	NOUN
fumecheng-2369	41	19	by	by	ADP
fumecheng-2369	41	20	normal	normal	ADJ
fumecheng-2369	41	21	oscillations	oscillation	NOUN
fumecheng-2369	41	22	in	in	ADP
fumecheng-2369	41	23	viscoelastic	viscoelastic	ADJ
fumecheng-2369	41	24	contacts	contact	NOUN
fumecheng-2369	41	25	337	337	NUM
fumecheng-2369	41	26	where	where	SCONJ
fumecheng-2369	41	27	uz	uz	PROPN
fumecheng-2369	41	28	is	be	AUX
fumecheng-2369	41	29	the	the	DET
fumecheng-2369	41	30	amplitude	amplitude	NOUN
fumecheng-2369	41	31	of	of	ADP
fumecheng-2369	41	32	velocity	velocity	NOUN
fumecheng-2369	41	33	oscillation	oscillation	NOUN
fumecheng-2369	41	34	and	and	CCONJ
fumecheng-2369	41	35	e	e	NOUN
fumecheng-2369	41	36	*	*	PUNCT
fumecheng-2369	41	37	/g	/g	PUNCT
fumecheng-2369	41	38	*	*	PUNCT
fumecheng-2369	41	39	is	be	AUX
fumecheng-2369	41	40	the	the	DET
fumecheng-2369	41	41	ratio	ratio	NOUN
fumecheng-2369	41	42	of	of	ADP
fumecheng-2369	41	43	the	the	DET
fumecheng-2369	41	44	normal	normal	ADJ
fumecheng-2369	41	45	and	and	CCONJ
fumecheng-2369	41	46	tangential	tangential	ADJ
fumecheng-2369	41	47	stiffness	stiffness	NOUN
fumecheng-2369	41	48	of	of	ADP
fumecheng-2369	41	49	the	the	DET
fumecheng-2369	41	50	contact	contact	NOUN
fumecheng-2369	41	51	(	(	PUNCT
fumecheng-2369	41	52	the	the	DET
fumecheng-2369	41	53	so	so	ADV
fumecheng-2369	41	54	-	-	PUNCT
fumecheng-2369	41	55	called	call	VERB
fumecheng-2369	41	56	mindlin	mindlin	NOUN
fumecheng-2369	41	57	-	-	PUNCT
fumecheng-2369	41	58	ratio	ratio	NOUN
fumecheng-2369	41	59	)	)	PUNCT
fumecheng-2369	41	60	.	.	PUNCT
fumecheng-2369	42	1	since	since	SCONJ
fumecheng-2369	42	2	this	this	DET
fumecheng-2369	42	3	ratio	ratio	NOUN
fumecheng-2369	42	4	is	be	AUX
fumecheng-2369	42	5	generally	generally	ADV
fumecheng-2369	42	6	of	of	ADP
fumecheng-2369	42	7	the	the	DET
fumecheng-2369	42	8	order	order	NOUN
fumecheng-2369	42	9	of	of	ADP
fumecheng-2369	42	10	unity	unity	NOUN
fumecheng-2369	42	11	,	,	PUNCT
fumecheng-2369	42	12	one	one	PRON
fumecheng-2369	42	13	can	can	AUX
fumecheng-2369	42	14	roughly	roughly	ADV
fumecheng-2369	42	15	say	say	VERB
fumecheng-2369	42	16	that	that	SCONJ
fumecheng-2369	42	17	the	the	DET
fumecheng-2369	42	18	critical	critical	ADJ
fumecheng-2369	42	19	sliding	slide	VERB
fumecheng-2369	42	20	velocity	velocity	NOUN
fumecheng-2369	42	21	is	be	AUX
fumecheng-2369	42	22	equal	equal	ADJ
fumecheng-2369	42	23	to	to	ADP
fumecheng-2369	42	24	the	the	DET
fumecheng-2369	42	25	maximum	maximum	ADJ
fumecheng-2369	42	26	velocity	velocity	NOUN
fumecheng-2369	42	27	in	in	ADP
fumecheng-2369	42	28	the	the	DET
fumecheng-2369	42	29	normal	normal	ADJ
fumecheng-2369	42	30	direction	direction	NOUN
fumecheng-2369	42	31	(	(	PUNCT
fumecheng-2369	42	32	due	due	ADP
fumecheng-2369	42	33	to	to	ADP
fumecheng-2369	42	34	the	the	DET
fumecheng-2369	42	35	oscillation	oscillation	NOUN
fumecheng-2369	42	36	)	)	PUNCT
fumecheng-2369	42	37	times	time	VERB
fumecheng-2369	42	38	the	the	DET
fumecheng-2369	42	39	microscopic	microscopic	ADJ
fumecheng-2369	42	40	coefficient	coefficient	NOUN
fumecheng-2369	42	41	of	of	ADP
fumecheng-2369	42	42	friction	friction	NOUN
fumecheng-2369	42	43	.	.	PUNCT
fumecheng-2369	43	1	this	this	DET
fumecheng-2369	43	2	critical	critical	ADJ
fumecheng-2369	43	3	velocity	velocity	NOUN
fumecheng-2369	43	4	also	also	ADV
fumecheng-2369	43	5	enters	enter	VERB
fumecheng-2369	43	6	into	into	ADP
fumecheng-2369	43	7	the	the	DET
fumecheng-2369	43	8	primary	primary	ADJ
fumecheng-2369	43	9	dimensionless	dimensionless	NOUN
fumecheng-2369	43	10	parameter	parameter	NOUN
fumecheng-2369	43	11	characterizing	characterize	VERB
fumecheng-2369	43	12	the	the	DET
fumecheng-2369	43	13	behavior	behavior	NOUN
fumecheng-2369	43	14	of	of	ADP
fumecheng-2369	43	15	the	the	DET
fumecheng-2369	43	16	system	system	NOUN
fumecheng-2369	43	17	,	,	PUNCT
fumecheng-2369	43	18	which	which	PRON
fumecheng-2369	43	19	makes	make	VERB
fumecheng-2369	43	20	accurate	accurate	ADJ
fumecheng-2369	43	21	analysis	analysis	NOUN
fumecheng-2369	43	22	of	of	ADP
fumecheng-2369	43	23	this	this	DET
fumecheng-2369	43	24	quantity	quantity	NOUN
fumecheng-2369	43	25	doubly	doubly	ADV
fumecheng-2369	43	26	important	important	ADJ
fumecheng-2369	43	27	.	.	PUNCT
fumecheng-2369	44	1	fig	fig	NOUN
fumecheng-2369	44	2	.	.	PUNCT
fumecheng-2369	45	1	1	1	NUM
fumecheng-2369	45	2	qualitative	qualitative	ADJ
fumecheng-2369	45	3	dependence	dependence	NOUN
fumecheng-2369	45	4	of	of	ADP
fumecheng-2369	45	5	the	the	DET
fumecheng-2369	45	6	average	average	ADJ
fumecheng-2369	45	7	coefficient	coefficient	NOUN
fumecheng-2369	45	8	of	of	ADP
fumecheng-2369	45	9	friction	friction	NOUN
fumecheng-2369	45	10	(	(	PUNCT
fumecheng-2369	45	11	cof	cof	PROPN
fumecheng-2369	45	12	)	)	PUNCT
fumecheng-2369	45	13	on	on	ADP
fumecheng-2369	45	14	sliding	slide	VERB
fumecheng-2369	45	15	velocity	velocity	NOUN
fumecheng-2369	45	16	under	under	ADP
fumecheng-2369	45	17	action	action	NOUN
fumecheng-2369	45	18	of	of	ADP
fumecheng-2369	45	19	normal	normal	ADJ
fumecheng-2369	45	20	oscillations	oscillation	NOUN
fumecheng-2369	45	21	.	.	PUNCT
fumecheng-2369	46	1	of	of	ADP
fumecheng-2369	46	2	particular	particular	ADJ
fumecheng-2369	46	3	interest	interest	NOUN
fumecheng-2369	46	4	are	be	AUX
fumecheng-2369	46	5	the	the	DET
fumecheng-2369	46	6	“	"	PUNCT
fumecheng-2369	46	7	static	static	ADJ
fumecheng-2369	46	8	cof	cof	PROPN
fumecheng-2369	46	9	”	"	PUNCT
fumecheng-2369	46	10	at	at	ADP
fumecheng-2369	46	11	zero	zero	NUM
fumecheng-2369	46	12	velocity	velocity	NOUN
fumecheng-2369	46	13	,	,	PUNCT
fumecheng-2369	46	14	the	the	DET
fumecheng-2369	46	15	monotonous	monotonous	ADJ
fumecheng-2369	46	16	increase	increase	NOUN
fumecheng-2369	46	17	of	of	ADP
fumecheng-2369	46	18	the	the	DET
fumecheng-2369	46	19	cof	cof	PROPN
fumecheng-2369	46	20	with	with	ADP
fumecheng-2369	46	21	increasing	increase	VERB
fumecheng-2369	46	22	sliding	slide	VERB
fumecheng-2369	46	23	velocity	velocity	NOUN
fumecheng-2369	46	24	and	and	CCONJ
fumecheng-2369	46	25	the	the	DET
fumecheng-2369	46	26	critical	critical	ADJ
fumecheng-2369	46	27	velocity	velocity	NOUN
fumecheng-2369	46	28	of	of	ADP
fumecheng-2369	46	29	controllability	controllability	NOUN
fumecheng-2369	46	30	,	,	PUNCT
fumecheng-2369	46	31	above	above	ADP
fumecheng-2369	46	32	which	which	PRON
fumecheng-2369	46	33	the	the	DET
fumecheng-2369	46	34	average	average	ADJ
fumecheng-2369	46	35	cof	cof	PROPN
fumecheng-2369	46	36	is	be	AUX
fumecheng-2369	46	37	equal	equal	ADJ
fumecheng-2369	46	38	to	to	ADP
fumecheng-2369	46	39	the	the	DET
fumecheng-2369	46	40	microscopic	microscopic	ADJ
fumecheng-2369	46	41	cof	cof	PROPN
fumecheng-2369	46	42	,	,	PUNCT
fumecheng-2369	46	43	0	0	PROPN
fumecheng-2369	46	44	,	,	PUNCT
fumecheng-2369	46	45	with	with	ADP
fumecheng-2369	46	46	or	or	CCONJ
fumecheng-2369	46	47	without	without	ADP
fumecheng-2369	46	48	oscillations	oscillation	NOUN
fumecheng-2369	46	49	.	.	PUNCT
fumecheng-2369	47	1	if	if	SCONJ
fumecheng-2369	47	2	the	the	DET
fumecheng-2369	47	3	model	model	NOUN
fumecheng-2369	47	4	is	be	AUX
fumecheng-2369	47	5	augmented	augment	VERB
fumecheng-2369	47	6	with	with	ADP
fumecheng-2369	47	7	a	a	DET
fumecheng-2369	47	8	system	system	NOUN
fumecheng-2369	47	9	spring	spring	NOUN
fumecheng-2369	47	10	and	and	CCONJ
fumecheng-2369	47	11	a	a	DET
fumecheng-2369	47	12	contact	contact	NOUN
fumecheng-2369	47	13	mass	mass	NOUN
fumecheng-2369	47	14	,	,	PUNCT
fumecheng-2369	47	15	thus	thus	ADV
fumecheng-2369	47	16	enabling	enable	VERB
fumecheng-2369	47	17	inplane	inplane	NOUN
fumecheng-2369	47	18	system	system	NOUN
fumecheng-2369	47	19	dynamics	dynamic	NOUN
fumecheng-2369	47	20	,	,	PUNCT
fumecheng-2369	47	21	the	the	DET
fumecheng-2369	47	22	expression	expression	NOUN
fumecheng-2369	47	23	for	for	ADP
fumecheng-2369	47	24	the	the	DET
fumecheng-2369	47	25	critical	critical	ADJ
fumecheng-2369	47	26	velocity	velocity	NOUN
fumecheng-2369	47	27	becomes	become	VERB
fumecheng-2369	47	28	[	[	X
fumecheng-2369	47	29	7	7	NUM
fumecheng-2369	47	30	]	]	SYM
fumecheng-2369	47	31	:	:	PUNCT
fumecheng-2369	47	32	2	2	NUM
fumecheng-2369	47	33	0	0	NUM
fumecheng-2369	47	34	2	2	NUM
fumecheng-2369	47	35	z	z	NOUN
fumecheng-2369	47	36	,	,	PUNCT
fumecheng-2369	47	37	c	c	NOUN
fumecheng-2369	47	38	x	x	X
fumecheng-2369	47	39	,	,	PUNCT
fumecheng-2369	47	40	c	c	NOUN
fumecheng-2369	47	41	x	x	SYM
fumecheng-2369	47	42	c	c	NOUN
fumecheng-2369	47	43	z	z	NOUN
fumecheng-2369	47	44	x	x	PROPN
fumecheng-2369	47	45	,	,	PUNCT
fumecheng-2369	47	46	c	c	NOUN
fumecheng-2369	48	1	x	x	SYM
fumecheng-2369	48	2	k	k	PROPN
fumecheng-2369	49	1	|	|	ADV
fumecheng-2369	49	2	k	k	PROPN
fumecheng-2369	50	1	k	k	PROPN
fumecheng-2369	50	2	m	m	VERB
fumecheng-2369	50	3	|	|	ADV
fumecheng-2369	50	4	v	v	ADP
fumecheng-2369	50	5	u	u	NOUN
fumecheng-2369	51	1	k	k	PROPN
fumecheng-2369	52	1	|	|	ADV
fumecheng-2369	53	1	k	k	PROPN
fumecheng-2369	53	2	m	m	VERB
fumecheng-2369	53	3	|	|	ADV
fumecheng-2369	53	4			ADV
fumecheng-2369	53	5			VERB
fumecheng-2369	53	6			X
fumecheng-2369	53	7			NUM
fumecheng-2369	53	8			NOUN
fumecheng-2369	53	9			PUNCT
fumecheng-2369	53	10			NOUN
fumecheng-2369	53	11			PUNCT
fumecheng-2369	53	12	,	,	PUNCT
fumecheng-2369	53	13	(	(	PUNCT
fumecheng-2369	53	14	2	2	X
fumecheng-2369	53	15	)	)	PUNCT
fumecheng-2369	53	16	where	where	SCONJ
fumecheng-2369	53	17	kx	kx	PROPN
fumecheng-2369	53	18	,	,	PUNCT
fumecheng-2369	53	19	c	c	PROPN
fumecheng-2369	53	20	and	and	CCONJ
fumecheng-2369	53	21	kz	kz	PROPN
fumecheng-2369	53	22	,	,	PUNCT
fumecheng-2369	53	23	c	c	PROPN
fumecheng-2369	53	24	are	be	AUX
fumecheng-2369	53	25	the	the	DET
fumecheng-2369	53	26	tangential	tangential	ADJ
fumecheng-2369	53	27	and	and	CCONJ
fumecheng-2369	53	28	normal	normal	ADJ
fumecheng-2369	53	29	stiffness	stiffness	NOUN
fumecheng-2369	53	30	of	of	ADP
fumecheng-2369	53	31	the	the	DET
fumecheng-2369	53	32	contact	contact	NOUN
fumecheng-2369	53	33	(	(	PUNCT
fumecheng-2369	53	34	in	in	ADP
fumecheng-2369	53	35	this	this	DET
fumecheng-2369	53	36	model	model	NOUN
fumecheng-2369	53	37	,	,	PUNCT
fumecheng-2369	53	38	the	the	DET
fumecheng-2369	53	39	contact	contact	NOUN
fumecheng-2369	53	40	stiffness	stiffness	NOUN
fumecheng-2369	53	41	is	be	AUX
fumecheng-2369	53	42	assumed	assume	VERB
fumecheng-2369	53	43	to	to	PART
fumecheng-2369	53	44	be	be	AUX
fumecheng-2369	53	45	constant	constant	ADJ
fumecheng-2369	53	46	)	)	PUNCT
fumecheng-2369	53	47	,	,	PUNCT
fumecheng-2369	53	48	kx	kx	PROPN
fumecheng-2369	53	49	is	be	AUX
fumecheng-2369	53	50	the	the	DET
fumecheng-2369	53	51	tangential	tangential	ADJ
fumecheng-2369	53	52	stiffness	stiffness	NOUN
fumecheng-2369	53	53	of	of	ADP
fumecheng-2369	53	54	the	the	DET
fumecheng-2369	53	55	surrounding	surround	VERB
fumecheng-2369	53	56	system	system	NOUN
fumecheng-2369	53	57	and	and	CCONJ
fumecheng-2369	53	58	m	m	NOUN
fumecheng-2369	53	59	is	be	AUX
fumecheng-2369	53	60	the	the	DET
fumecheng-2369	53	61	mass	mass	NOUN
fumecheng-2369	53	62	of	of	ADP
fumecheng-2369	53	63	the	the	DET
fumecheng-2369	53	64	sliding	slide	VERB
fumecheng-2369	53	65	body	body	NOUN
fumecheng-2369	53	66	.	.	PUNCT
fumecheng-2369	54	1	the	the	DET
fumecheng-2369	54	2	only	only	ADJ
fumecheng-2369	54	3	difference	difference	NOUN
fumecheng-2369	54	4	compared	compare	VERB
fumecheng-2369	54	5	to	to	ADP
fumecheng-2369	54	6	eq	eq	PROPN
fumecheng-2369	54	7	.	.	PUNCT
fumecheng-2369	55	1	(	(	PUNCT
fumecheng-2369	55	2	1	1	X
fumecheng-2369	55	3	)	)	PUNCT
fumecheng-2369	55	4	is	be	AUX
fumecheng-2369	55	5	the	the	DET
fumecheng-2369	55	6	additional	additional	ADJ
fumecheng-2369	55	7	dependence	dependence	NOUN
fumecheng-2369	55	8	on	on	ADP
fumecheng-2369	55	9	the	the	DET
fumecheng-2369	55	10	two	two	NUM
fumecheng-2369	55	11	natural	natural	ADJ
fumecheng-2369	55	12	frequencies	frequency	NOUN
fumecheng-2369	55	13	of	of	ADP
fumecheng-2369	55	14	the	the	DET
fumecheng-2369	55	15	system	system	NOUN
fumecheng-2369	55	16	.	.	PUNCT
fumecheng-2369	56	1	indeed	indeed	ADV
fumecheng-2369	56	2	,	,	PUNCT
fumecheng-2369	56	3	if	if	SCONJ
fumecheng-2369	56	4	kx	kx	PROPN
fumecheng-2369	56	5	tends	tend	VERB
fumecheng-2369	56	6	to	to	PART
fumecheng-2369	56	7	infinity	infinity	VERB
fumecheng-2369	56	8	,	,	PUNCT
fumecheng-2369	56	9	eq	eq	ADJ
fumecheng-2369	56	10	.	.	PUNCT
fumecheng-2369	57	1	(	(	PUNCT
fumecheng-2369	57	2	2	2	X
fumecheng-2369	57	3	)	)	PUNCT
fumecheng-2369	57	4	reduces	reduce	VERB
fumecheng-2369	57	5	to	to	ADP
fumecheng-2369	57	6	the	the	DET
fumecheng-2369	57	7	previous	previous	ADJ
fumecheng-2369	57	8	result	result	NOUN
fumecheng-2369	57	9	.	.	PUNCT
fumecheng-2369	58	1	another	another	DET
fumecheng-2369	58	2	notable	notable	ADJ
fumecheng-2369	58	3	feature	feature	NOUN
fumecheng-2369	58	4	is	be	AUX
fumecheng-2369	58	5	the	the	DET
fumecheng-2369	58	6	presence	presence	NOUN
fumecheng-2369	58	7	of	of	ADP
fumecheng-2369	58	8	two	two	NUM
fumecheng-2369	58	9	resonant	resonant	ADJ
fumecheng-2369	58	10	frequencies	frequency	NOUN
fumecheng-2369	58	11	,	,	PUNCT
fumecheng-2369	58	12	in	in	ADP
fumecheng-2369	58	13	particular	particular	ADJ
fumecheng-2369	58	14	xk	xk	PROPN
fumecheng-2369	59	1	m	m	NUM
fumecheng-2369	59	2	where	where	SCONJ
fumecheng-2369	59	3	vc	vc	PROPN
fumecheng-2369	59	4	becomes	become	VERB
fumecheng-2369	59	5	infinite	infinite	ADJ
fumecheng-2369	59	6	.	.	PUNCT
fumecheng-2369	59	7	numerical	numerical	ADJ
fumecheng-2369	59	8	experiments	experiment	NOUN
fumecheng-2369	59	9	show	show	VERB
fumecheng-2369	59	10	that	that	SCONJ
fumecheng-2369	59	11	in	in	ADP
fumecheng-2369	59	12	this	this	DET
fumecheng-2369	59	13	case	case	NOUN
fumecheng-2369	59	14	,	,	PUNCT
fumecheng-2369	59	15	the	the	DET
fumecheng-2369	59	16	coefficient	coefficient	NOUN
fumecheng-2369	59	17	of	of	ADP
fumecheng-2369	59	18	friction	friction	NOUN
fumecheng-2369	59	19	reaches	reach	VERB
fumecheng-2369	59	20	a	a	DET
fumecheng-2369	59	21	plateau	plateau	NOUN
fumecheng-2369	59	22	(	(	PUNCT
fumecheng-2369	59	23	which	which	PRON
fumecheng-2369	59	24	is	be	AUX
fumecheng-2369	59	25	less	less	ADJ
fumecheng-2369	59	26	than	than	ADP
fumecheng-2369	59	27	0	0	PROPN
fumecheng-2369	59	28	)	)	PUNCT
fumecheng-2369	59	29	at	at	ADP
fumecheng-2369	59	30	fairly	fairly	ADV
fumecheng-2369	59	31	low	low	ADJ
fumecheng-2369	59	32	sliding	slide	VERB
fumecheng-2369	59	33	velocities	velocity	NOUN
fumecheng-2369	59	34	and	and	CCONJ
fumecheng-2369	59	35	does	do	AUX
fumecheng-2369	59	36	not	not	PART
fumecheng-2369	59	37	change	change	VERB
fumecheng-2369	59	38	thereafter	thereafter	ADV
fumecheng-2369	59	39	.	.	PUNCT
fumecheng-2369	60	1	for	for	ADP
fumecheng-2369	60	2	the	the	DET
fumecheng-2369	60	3	full	full	ADJ
fumecheng-2369	60	4	analysis	analysis	NOUN
fumecheng-2369	60	5	,	,	PUNCT
fumecheng-2369	60	6	the	the	DET
fumecheng-2369	60	7	reader	reader	NOUN
fumecheng-2369	60	8	is	be	AUX
fumecheng-2369	60	9	referred	refer	VERB
fumecheng-2369	60	10	to	to	ADP
fumecheng-2369	60	11	[	[	X
fumecheng-2369	60	12	6	6	NUM
fumecheng-2369	60	13	,	,	PUNCT
fumecheng-2369	60	14	7	7	NUM
fumecheng-2369	60	15	]	]	PUNCT
fumecheng-2369	60	16	.	.	PUNCT
fumecheng-2369	61	1	in	in	ADP
fumecheng-2369	61	2	the	the	DET
fumecheng-2369	61	3	present	present	ADJ
fumecheng-2369	61	4	paper	paper	NOUN
fumecheng-2369	61	5	these	these	DET
fumecheng-2369	61	6	previous	previous	ADJ
fumecheng-2369	61	7	results	result	NOUN
fumecheng-2369	61	8	are	be	AUX
fumecheng-2369	61	9	extended	extend	VERB
fumecheng-2369	61	10	to	to	PART
fumecheng-2369	61	11	also	also	ADV
fumecheng-2369	61	12	include	include	VERB
fumecheng-2369	61	13	viscoelastic	viscoelastic	ADJ
fumecheng-2369	61	14	contacts	contact	NOUN
fumecheng-2369	61	15	.	.	PUNCT
fumecheng-2369	62	1	active	active	ADJ
fumecheng-2369	62	2	control	control	NOUN
fumecheng-2369	62	3	of	of	ADP
fumecheng-2369	62	4	friction	friction	NOUN
fumecheng-2369	62	5	and	and	CCONJ
fumecheng-2369	62	6	system	system	NOUN
fumecheng-2369	62	7	stability	stability	NOUN
fumecheng-2369	62	8	seems	seem	VERB
fumecheng-2369	62	9	to	to	PART
fumecheng-2369	62	10	be	be	AUX
fumecheng-2369	62	11	an	an	DET
fumecheng-2369	62	12	underexplored	underexplored	ADJ
fumecheng-2369	62	13	topic	topic	NOUN
fumecheng-2369	62	14	when	when	SCONJ
fumecheng-2369	62	15	viscoelastic	viscoelastic	ADJ
fumecheng-2369	62	16	contacts	contact	NOUN
fumecheng-2369	62	17	are	be	AUX
fumecheng-2369	62	18	concerned	concern	VERB
fumecheng-2369	62	19	,	,	PUNCT
fumecheng-2369	62	20	despite	despite	SCONJ
fumecheng-2369	62	21	many	many	ADJ
fumecheng-2369	62	22	possible	possible	ADJ
fumecheng-2369	62	23	applications	application	NOUN
fumecheng-2369	62	24	in	in	ADP
fumecheng-2369	62	25	conjunction	conjunction	NOUN
fumecheng-2369	62	26	with	with	ADP
fumecheng-2369	62	27	the	the	DET
fumecheng-2369	62	28	ubiquitous	ubiquitous	ADJ
fumecheng-2369	62	29	use	use	NOUN
fumecheng-2369	62	30	of	of	ADP
fumecheng-2369	62	31	elastomers	elastomer	NOUN
fumecheng-2369	62	32	and	and	CCONJ
fumecheng-2369	62	33	the	the	DET
fumecheng-2369	62	34	rising	rise	VERB
fumecheng-2369	62	35	demands	demand	NOUN
fumecheng-2369	62	36	placed	place	VERB
fumecheng-2369	62	37	on	on	ADP
fumecheng-2369	62	38	devices	device	NOUN
fumecheng-2369	62	39	in	in	ADP
fumecheng-2369	62	40	contact	contact	NOUN
fumecheng-2369	62	41	with	with	ADP
fumecheng-2369	62	42	biological	biological	ADJ
fumecheng-2369	62	43	tissues	tissue	NOUN
fumecheng-2369	62	44	in	in	ADP
fumecheng-2369	62	45	medical	medical	ADJ
fumecheng-2369	62	46	technology	technology	NOUN
fumecheng-2369	62	47	.	.	PUNCT
fumecheng-2369	63	1	with	with	ADP
fumecheng-2369	63	2	this	this	DET
fumecheng-2369	63	3	paper	paper	NOUN
fumecheng-2369	63	4	we	we	PRON
fumecheng-2369	63	5	338	338	NUM
fumecheng-2369	63	6	m.	m.	NOUN
fumecheng-2369	63	7	popov	popov	PROPN
fumecheng-2369	63	8	would	would	AUX
fumecheng-2369	63	9	like	like	VERB
fumecheng-2369	63	10	to	to	PART
fumecheng-2369	63	11	begin	begin	VERB
fumecheng-2369	63	12	establishing	establish	VERB
fumecheng-2369	63	13	a	a	DET
fumecheng-2369	63	14	quantitative	quantitative	ADJ
fumecheng-2369	63	15	framework	framework	NOUN
fumecheng-2369	63	16	for	for	ADP
fumecheng-2369	63	17	the	the	DET
fumecheng-2369	63	18	analysis	analysis	NOUN
fumecheng-2369	63	19	of	of	ADP
fumecheng-2369	63	20	viscoelastic	viscoelastic	ADJ
fumecheng-2369	63	21	friction	friction	NOUN
fumecheng-2369	63	22	under	under	ADP
fumecheng-2369	63	23	oscillation	oscillation	NOUN
fumecheng-2369	63	24	,	,	PUNCT
fumecheng-2369	63	25	by	by	ADP
fumecheng-2369	63	26	proposing	propose	VERB
fumecheng-2369	63	27	that	that	SCONJ
fumecheng-2369	63	28	the	the	DET
fumecheng-2369	63	29	same	same	ADJ
fumecheng-2369	63	30	methods	method	NOUN
fumecheng-2369	63	31	used	use	VERB
fumecheng-2369	63	32	in	in	ADP
fumecheng-2369	63	33	[	[	X
fumecheng-2369	63	34	6	6	NUM
fumecheng-2369	63	35	,	,	PUNCT
fumecheng-2369	63	36	7	7	NUM
fumecheng-2369	63	37	]	]	PUNCT
fumecheng-2369	63	38	can	can	AUX
fumecheng-2369	63	39	be	be	AUX
fumecheng-2369	63	40	applied	apply	VERB
fumecheng-2369	63	41	in	in	ADP
fumecheng-2369	63	42	viscoelastic	viscoelastic	ADJ
fumecheng-2369	63	43	contacts	contact	NOUN
fumecheng-2369	63	44	in	in	ADP
fumecheng-2369	63	45	order	order	NOUN
fumecheng-2369	63	46	to	to	PART
fumecheng-2369	63	47	calculate	calculate	VERB
fumecheng-2369	63	48	the	the	DET
fumecheng-2369	63	49	critical	critical	ADJ
fumecheng-2369	63	50	velocity	velocity	NOUN
fumecheng-2369	63	51	in	in	ADP
fumecheng-2369	63	52	closed	closed	ADJ
fumecheng-2369	63	53	form	form	NOUN
fumecheng-2369	63	54	.	.	PUNCT
fumecheng-2369	64	1	2	2	X
fumecheng-2369	64	2	.	.	X
fumecheng-2369	64	3	model	model	NOUN
fumecheng-2369	64	4	and	and	CCONJ
fumecheng-2369	64	5	analysis	analysis	NOUN
fumecheng-2369	64	6	2.1	2.1	NUM
fumecheng-2369	64	7	.	.	PUNCT
fumecheng-2369	65	1	formulation	formulation	NOUN
fumecheng-2369	65	2	of	of	ADP
fumecheng-2369	65	3	the	the	DET
fumecheng-2369	65	4	model	model	NOUN
fumecheng-2369	65	5	the	the	DET
fumecheng-2369	65	6	model	model	NOUN
fumecheng-2369	65	7	that	that	PRON
fumecheng-2369	65	8	will	will	AUX
fumecheng-2369	65	9	be	be	AUX
fumecheng-2369	65	10	analyzed	analyze	VERB
fumecheng-2369	65	11	in	in	ADP
fumecheng-2369	65	12	this	this	DET
fumecheng-2369	65	13	paper	paper	NOUN
fumecheng-2369	65	14	is	be	AUX
fumecheng-2369	65	15	very	very	ADV
fumecheng-2369	65	16	similar	similar	ADJ
fumecheng-2369	65	17	to	to	ADP
fumecheng-2369	65	18	the	the	DET
fumecheng-2369	65	19	one	one	NOUN
fumecheng-2369	65	20	presented	present	VERB
fumecheng-2369	65	21	in	in	ADP
fumecheng-2369	65	22	[	[	X
fumecheng-2369	65	23	7	7	NUM
fumecheng-2369	65	24	]	]	PUNCT
fumecheng-2369	65	25	.	.	PUNCT
fumecheng-2369	66	1	it	it	PRON
fumecheng-2369	66	2	consists	consist	VERB
fumecheng-2369	66	3	of	of	ADP
fumecheng-2369	66	4	a	a	DET
fumecheng-2369	66	5	mass	mass	NOUN
fumecheng-2369	66	6	m	m	VERB
fumecheng-2369	66	7	that	that	PRON
fumecheng-2369	66	8	is	be	AUX
fumecheng-2369	66	9	pulled	pull	VERB
fumecheng-2369	66	10	with	with	ADP
fumecheng-2369	66	11	a	a	DET
fumecheng-2369	66	12	constant	constant	ADJ
fumecheng-2369	66	13	velocity	velocity	NOUN
fumecheng-2369	66	14	v0	v0	NOUN
fumecheng-2369	66	15	through	through	ADP
fumecheng-2369	66	16	a	a	DET
fumecheng-2369	66	17	system	system	NOUN
fumecheng-2369	66	18	spring	spring	NOUN
fumecheng-2369	66	19	with	with	ADP
fumecheng-2369	66	20	a	a	DET
fumecheng-2369	66	21	constant	constant	ADJ
fumecheng-2369	66	22	stiffness	stiffness	NOUN
fumecheng-2369	66	23	kx	kx	PROPN
fumecheng-2369	66	24	(	(	PUNCT
fumecheng-2369	66	25	see	see	VERB
fumecheng-2369	66	26	fig	fig	NOUN
fumecheng-2369	66	27	.	.	PUNCT
fumecheng-2369	67	1	2	2	NUM
fumecheng-2369	67	2	)	)	PUNCT
fumecheng-2369	67	3	.	.	PUNCT
fumecheng-2369	68	1	in	in	ADP
fumecheng-2369	68	2	addition	addition	NOUN
fumecheng-2369	68	3	,	,	PUNCT
fumecheng-2369	68	4	a	a	DET
fumecheng-2369	68	5	displacement	displacement	NOUN
fumecheng-2369	68	6	-	-	PUNCT
fumecheng-2369	68	7	controlled	control	VERB
fumecheng-2369	68	8	harmonic	harmonic	ADJ
fumecheng-2369	68	9	oscillation	oscillation	NOUN
fumecheng-2369	68	10	is	be	AUX
fumecheng-2369	68	11	imposed	impose	VERB
fumecheng-2369	68	12	in	in	ADP
fumecheng-2369	68	13	the	the	DET
fumecheng-2369	68	14	direction	direction	NOUN
fumecheng-2369	68	15	normal	normal	ADJ
fumecheng-2369	68	16	to	to	ADP
fumecheng-2369	68	17	the	the	DET
fumecheng-2369	68	18	plane	plane	NOUN
fumecheng-2369	68	19	.	.	PUNCT
fumecheng-2369	69	1	the	the	DET
fumecheng-2369	69	2	oscillation	oscillation	NOUN
fumecheng-2369	69	3	is	be	AUX
fumecheng-2369	69	4	defined	define	VERB
fumecheng-2369	69	5	by	by	ADP
fumecheng-2369	69	6	:	:	PUNCT
fumecheng-2369	69	7	0z	0z	ADJ
fumecheng-2369	69	8	z	z	NOUN
fumecheng-2369	69	9	,	,	PUNCT
fumecheng-2369	69	10	zu	zu	CCONJ
fumecheng-2369	69	11	u	u	NOUN
fumecheng-2369	69	12	u	u	NOUN
fumecheng-2369	69	13	cos	cos	ADP
fumecheng-2369	69	14	t	t	PROPN
fumecheng-2369	69	15			PROPN
fumecheng-2369	69	16			X
fumecheng-2369	69	17	,	,	PUNCT
fumecheng-2369	69	18	(	(	PUNCT
fumecheng-2369	69	19	3	3	X
fumecheng-2369	69	20	)	)	PUNCT
fumecheng-2369	69	21	where	where	SCONJ
fumecheng-2369	69	22	uz	uz	PROPN
fumecheng-2369	69	23	is	be	AUX
fumecheng-2369	69	24	the	the	DET
fumecheng-2369	69	25	coordinate	coordinate	NOUN
fumecheng-2369	69	26	of	of	ADP
fumecheng-2369	69	27	the	the	DET
fumecheng-2369	69	28	body	body	NOUN
fumecheng-2369	69	29	in	in	ADP
fumecheng-2369	69	30	the	the	DET
fumecheng-2369	69	31	normal	normal	ADJ
fumecheng-2369	69	32	direction	direction	NOUN
fumecheng-2369	69	33	,	,	PUNCT
fumecheng-2369	69	34	uz,0	uz,0	PROPN
fumecheng-2369	69	35	the	the	DET
fumecheng-2369	69	36	mean	mean	ADJ
fumecheng-2369	69	37	indentation	indentation	NOUN
fumecheng-2369	69	38	depth	depth	NOUN
fumecheng-2369	69	39	,	,	PUNCT
fumecheng-2369	69	40	uz	uz	PUNCT
fumecheng-2369	69	41	the	the	DET
fumecheng-2369	69	42	oscillation	oscillation	NOUN
fumecheng-2369	69	43	amplitude	amplitude	NOUN
fumecheng-2369	69	44	and	and	CCONJ
fumecheng-2369	69	45			PRON
fumecheng-2369	69	46	the	the	DET
fumecheng-2369	69	47	frequency	frequency	NOUN
fumecheng-2369	69	48	.	.	PUNCT
fumecheng-2369	70	1	the	the	DET
fumecheng-2369	70	2	body	body	NOUN
fumecheng-2369	70	3	is	be	AUX
fumecheng-2369	70	4	connected	connect	VERB
fumecheng-2369	70	5	to	to	ADP
fumecheng-2369	70	6	the	the	DET
fumecheng-2369	70	7	substrate	substrate	NOUN
fumecheng-2369	70	8	through	through	ADP
fumecheng-2369	70	9	a	a	DET
fumecheng-2369	70	10	contact	contact	NOUN
fumecheng-2369	70	11	point	point	NOUN
fumecheng-2369	70	12	,	,	PUNCT
fumecheng-2369	70	13	in	in	ADP
fumecheng-2369	70	14	which	which	PRON
fumecheng-2369	70	15	amontons	amonton	NOUN
fumecheng-2369	70	16	’	'	PUNCT
fumecheng-2369	70	17	law	law	NOUN
fumecheng-2369	70	18	of	of	ADP
fumecheng-2369	70	19	friction	friction	NOUN
fumecheng-2369	70	20	with	with	ADP
fumecheng-2369	70	21	a	a	DET
fumecheng-2369	70	22	constant	constant	ADJ
fumecheng-2369	70	23	coefficient	coefficient	NOUN
fumecheng-2369	70	24	of	of	ADP
fumecheng-2369	70	25	friction	friction	NOUN
fumecheng-2369	70	26	0	0	PROPN
fumecheng-2369	70	27	is	be	AUX
fumecheng-2369	70	28	assumed	assume	VERB
fumecheng-2369	70	29	.	.	PUNCT
fumecheng-2369	71	1	the	the	DET
fumecheng-2369	71	2	main	main	ADJ
fumecheng-2369	71	3	difference	difference	NOUN
fumecheng-2369	71	4	is	be	AUX
fumecheng-2369	71	5	that	that	SCONJ
fumecheng-2369	71	6	the	the	DET
fumecheng-2369	71	7	contact	contact	NOUN
fumecheng-2369	71	8	is	be	AUX
fumecheng-2369	71	9	not	not	PART
fumecheng-2369	71	10	elastic	elastic	ADJ
fumecheng-2369	71	11	but	but	CCONJ
fumecheng-2369	71	12	viscoelastic	viscoelastic	NOUN
fumecheng-2369	71	13	and	and	CCONJ
fumecheng-2369	71	14	characterized	characterize	VERB
fumecheng-2369	71	15	not	not	PART
fumecheng-2369	71	16	only	only	ADV
fumecheng-2369	71	17	by	by	ADP
fumecheng-2369	71	18	the	the	DET
fumecheng-2369	71	19	constant	constant	ADJ
fumecheng-2369	71	20	tangential	tangential	ADJ
fumecheng-2369	71	21	and	and	CCONJ
fumecheng-2369	71	22	normal	normal	ADJ
fumecheng-2369	71	23	spring	spring	NOUN
fumecheng-2369	71	24	stiffness	stiffness	NOUN
fumecheng-2369	71	25	kx	kx	PROPN
fumecheng-2369	71	26	,	,	PUNCT
fumecheng-2369	71	27	c	c	PROPN
fumecheng-2369	71	28	and	and	CCONJ
fumecheng-2369	71	29	kz	kz	PROPN
fumecheng-2369	71	30	,	,	PUNCT
fumecheng-2369	71	31	c	c	PROPN
fumecheng-2369	71	32	,	,	PUNCT
fumecheng-2369	71	33	but	but	CCONJ
fumecheng-2369	71	34	also	also	ADV
fumecheng-2369	71	35	by	by	ADP
fumecheng-2369	71	36	the	the	DET
fumecheng-2369	71	37	dynamic	dynamic	ADJ
fumecheng-2369	71	38	viscosities	viscosity	NOUN
fumecheng-2369	71	39	γx	γx	VERB
fumecheng-2369	71	40	,	,	PUNCT
fumecheng-2369	71	41	c	c	PROPN
fumecheng-2369	71	42	and	and	CCONJ
fumecheng-2369	71	43	γz	γz	PROPN
fumecheng-2369	71	44	,	,	PUNCT
fumecheng-2369	71	45	c.	c.	NOUN
fumecheng-2369	71	46	this	this	PRON
fumecheng-2369	71	47	corresponds	correspond	VERB
fumecheng-2369	71	48	to	to	ADP
fumecheng-2369	71	49	the	the	DET
fumecheng-2369	71	50	kelvin	kelvin	PROPN
fumecheng-2369	71	51	material	material	NOUN
fumecheng-2369	71	52	,	,	PUNCT
fumecheng-2369	71	53	the	the	DET
fumecheng-2369	71	54	simplest	simple	ADJ
fumecheng-2369	71	55	model	model	NOUN
fumecheng-2369	71	56	of	of	ADP
fumecheng-2369	71	57	viscoelasticity	viscoelasticity	NOUN
fumecheng-2369	71	58	.	.	PUNCT
fumecheng-2369	72	1	the	the	DET
fumecheng-2369	72	2	relevant	relevant	ADJ
fumecheng-2369	72	3	dynamics	dynamic	NOUN
fumecheng-2369	72	4	of	of	ADP
fumecheng-2369	72	5	the	the	DET
fumecheng-2369	72	6	resulting	result	VERB
fumecheng-2369	72	7	system	system	NOUN
fumecheng-2369	72	8	is	be	AUX
fumecheng-2369	72	9	confined	confine	VERB
fumecheng-2369	72	10	to	to	ADP
fumecheng-2369	72	11	the	the	DET
fumecheng-2369	72	12	sliding	slide	VERB
fumecheng-2369	72	13	plane	plane	NOUN
fumecheng-2369	72	14	and	and	CCONJ
fumecheng-2369	72	15	is	be	AUX
fumecheng-2369	72	16	characterized	characterize	VERB
fumecheng-2369	72	17	by	by	ADP
fumecheng-2369	72	18	ux	ux	PROPN
fumecheng-2369	72	19	,	,	PUNCT
fumecheng-2369	72	20	the	the	DET
fumecheng-2369	72	21	position	position	NOUN
fumecheng-2369	72	22	of	of	ADP
fumecheng-2369	72	23	the	the	DET
fumecheng-2369	72	24	body	body	NOUN
fumecheng-2369	72	25	and	and	CCONJ
fumecheng-2369	72	26	ux	ux	NOUN
fumecheng-2369	72	27	,	,	PUNCT
fumecheng-2369	72	28	c	c	PROPN
fumecheng-2369	72	29	,	,	PUNCT
fumecheng-2369	72	30	the	the	DET
fumecheng-2369	72	31	position	position	NOUN
fumecheng-2369	72	32	of	of	ADP
fumecheng-2369	72	33	the	the	DET
fumecheng-2369	72	34	contact	contact	NOUN
fumecheng-2369	72	35	point	point	NOUN
fumecheng-2369	72	36	.	.	PUNCT
fumecheng-2369	73	1	fig	fig	NOUN
fumecheng-2369	73	2	.	.	PUNCT
fumecheng-2369	74	1	2	2	NUM
fumecheng-2369	74	2	schematic	schematic	ADJ
fumecheng-2369	74	3	representation	representation	NOUN
fumecheng-2369	74	4	of	of	ADP
fumecheng-2369	74	5	the	the	DET
fumecheng-2369	74	6	considered	consider	VERB
fumecheng-2369	74	7	system	system	NOUN
fumecheng-2369	74	8	,	,	PUNCT
fumecheng-2369	74	9	consisting	consist	VERB
fumecheng-2369	74	10	of	of	ADP
fumecheng-2369	74	11	a	a	DET
fumecheng-2369	74	12	mass	mass	NOUN
fumecheng-2369	74	13	,	,	PUNCT
fumecheng-2369	74	14	a	a	DET
fumecheng-2369	74	15	system	system	NOUN
fumecheng-2369	74	16	spring	spring	NOUN
fumecheng-2369	74	17	and	and	CCONJ
fumecheng-2369	74	18	a	a	DET
fumecheng-2369	74	19	viscoelastic	viscoelastic	ADJ
fumecheng-2369	74	20	contact	contact	NOUN
fumecheng-2369	74	21	with	with	ADP
fumecheng-2369	74	22	the	the	DET
fumecheng-2369	74	23	sliding	slide	VERB
fumecheng-2369	74	24	plane	plane	NOUN
fumecheng-2369	74	25	.	.	PUNCT
fumecheng-2369	75	1	2.2	2.2	NUM
fumecheng-2369	75	2	.	.	PUNCT
fumecheng-2369	76	1	analysis	analysis	NOUN
fumecheng-2369	76	2	of	of	ADP
fumecheng-2369	76	3	the	the	DET
fumecheng-2369	76	4	model	model	NOUN
fumecheng-2369	76	5	2.2.1	2.2.1	NUM
fumecheng-2369	76	6	.	.	PUNCT
fumecheng-2369	76	7	normal	normal	ADJ
fumecheng-2369	76	8	force	force	NOUN
fumecheng-2369	76	9	the	the	DET
fumecheng-2369	76	10	normal	normal	ADJ
fumecheng-2369	76	11	force	force	NOUN
fumecheng-2369	76	12	in	in	ADP
fumecheng-2369	76	13	the	the	DET
fumecheng-2369	76	14	spring	spring	NOUN
fumecheng-2369	76	15	-	-	PUNCT
fumecheng-2369	76	16	damper	damper	NOUN
fumecheng-2369	76	17	combination	combination	NOUN
fumecheng-2369	76	18	is	be	AUX
fumecheng-2369	76	19	given	give	VERB
fumecheng-2369	76	20	by	by	ADP
fumecheng-2369	76	21	:	:	PUNCT
fumecheng-2369	76	22	0	0	NUM
fumecheng-2369	76	23	(	(	PUNCT
fumecheng-2369	76	24	)	)	PUNCT
fumecheng-2369	76	25	n	n	PROPN
fumecheng-2369	76	26	z	z	NOUN
fumecheng-2369	76	27	,	,	PUNCT
fumecheng-2369	76	28	c	c	PROPN
fumecheng-2369	76	29	z	z	NOUN
fumecheng-2369	76	30	z	z	NOUN
fumecheng-2369	76	31	,	,	PUNCT
fumecheng-2369	76	32	c	c	PROPN
fumecheng-2369	76	33	z	z	NOUN
fumecheng-2369	76	34	z	z	NOUN
fumecheng-2369	76	35	,	,	PUNCT
fumecheng-2369	76	36	c	c	PROPN
fumecheng-2369	76	37	z	z	NOUN
fumecheng-2369	76	38	,	,	PUNCT
fumecheng-2369	76	39	z	z	NOUN
fumecheng-2369	76	40	z	z	NOUN
fumecheng-2369	76	41	,	,	PUNCT
fumecheng-2369	76	42	c	c	PROPN
fumecheng-2369	76	43	zf	zf	PROPN
fumecheng-2369	76	44	k	k	PROPN
fumecheng-2369	76	45	u	u	PROPN
fumecheng-2369	76	46	u	u	X
fumecheng-2369	76	47	k	k	PROPN
fumecheng-2369	76	48	u	u	X
fumecheng-2369	76	49	u	u	PROPN
fumecheng-2369	76	50	cos	cos	PROPN
fumecheng-2369	76	51	t	t	PROPN
fumecheng-2369	76	52	u	u	PROPN
fumecheng-2369	76	53	sin	sin	VERB
fumecheng-2369	76	54	t	t	PROPN
fumecheng-2369	76	55			VERB
fumecheng-2369	76	56			NUM
fumecheng-2369	76	57			PROPN
fumecheng-2369	76	58			PROPN
fumecheng-2369	76	59			X
fumecheng-2369	76	60			X
fumecheng-2369	76	61			PUNCT
fumecheng-2369	76	62			X
fumecheng-2369	76	63	.	.	PUNCT
fumecheng-2369	77	1	(	(	PUNCT
fumecheng-2369	77	2	4	4	X
fumecheng-2369	77	3	)	)	PUNCT
fumecheng-2369	77	4	critical	critical	ADJ
fumecheng-2369	77	5	velocity	velocity	NOUN
fumecheng-2369	77	6	of	of	ADP
fumecheng-2369	77	7	controllability	controllability	NOUN
fumecheng-2369	77	8	of	of	ADP
fumecheng-2369	77	9	sliding	slide	VERB
fumecheng-2369	77	10	friction	friction	NOUN
fumecheng-2369	77	11	by	by	ADP
fumecheng-2369	77	12	normal	normal	ADJ
fumecheng-2369	77	13	oscillations	oscillation	NOUN
fumecheng-2369	77	14	in	in	ADP
fumecheng-2369	77	15	viscoelastic	viscoelastic	ADJ
fumecheng-2369	77	16	contacts	contact	NOUN
fumecheng-2369	77	17	339	339	NUM
fumecheng-2369	77	18	to	to	PART
fumecheng-2369	77	19	ensure	ensure	VERB
fumecheng-2369	77	20	that	that	SCONJ
fumecheng-2369	77	21	the	the	DET
fumecheng-2369	77	22	body	body	NOUN
fumecheng-2369	77	23	is	be	AUX
fumecheng-2369	77	24	always	always	ADV
fumecheng-2369	77	25	in	in	ADP
fumecheng-2369	77	26	contact	contact	NOUN
fumecheng-2369	77	27	with	with	ADP
fumecheng-2369	77	28	the	the	DET
fumecheng-2369	77	29	plane	plane	NOUN
fumecheng-2369	77	30	,	,	PUNCT
fumecheng-2369	77	31	the	the	DET
fumecheng-2369	77	32	normal	normal	ADJ
fumecheng-2369	77	33	force	force	NOUN
fumecheng-2369	77	34	must	must	AUX
fumecheng-2369	77	35	always	always	ADV
fumecheng-2369	77	36	remain	remain	VERB
fumecheng-2369	77	37	positive	positive	ADJ
fumecheng-2369	77	38	.	.	PUNCT
fumecheng-2369	78	1	this	this	PRON
fumecheng-2369	78	2	is	be	AUX
fumecheng-2369	78	3	the	the	DET
fumecheng-2369	78	4	case	case	NOUN
fumecheng-2369	78	5	if	if	SCONJ
fumecheng-2369	78	6	:	:	PUNCT
fumecheng-2369	78	7	2	2	NUM
fumecheng-2369	78	8	2	2	NUM
fumecheng-2369	78	9	2	2	NUM
fumecheng-2369	78	10	0z	0z	NOUN
fumecheng-2369	78	11	,	,	PUNCT
fumecheng-2369	78	12	c	c	PROPN
fumecheng-2369	78	13	z	z	NOUN
fumecheng-2369	78	14	,	,	PUNCT
fumecheng-2369	78	15	z	z	NOUN
fumecheng-2369	78	16	z	z	NOUN
fumecheng-2369	78	17	,	,	PUNCT
fumecheng-2369	79	1	c	c	PROPN
fumecheng-2369	79	2	z	z	PROPN
fumecheng-2369	79	3	,	,	PUNCT
fumecheng-2369	79	4	ck	ck	PROPN
fumecheng-2369	79	5	u	u	NOUN
fumecheng-2369	79	6	u	u	NOUN
fumecheng-2369	79	7	k	k	PROPN
fumecheng-2369	79	8			X
fumecheng-2369	79	9			VERB
fumecheng-2369	79	10			NUM
fumecheng-2369	79	11			X
fumecheng-2369	79	12	.	.	PUNCT
fumecheng-2369	80	1	(	(	PUNCT
fumecheng-2369	80	2	5	5	NUM
fumecheng-2369	80	3	)	)	PUNCT
fumecheng-2369	80	4	only	only	ADV
fumecheng-2369	80	5	this	this	DET
fumecheng-2369	80	6	“	"	PUNCT
fumecheng-2369	80	7	non	non	ADJ
fumecheng-2369	80	8	-	-	ADJ
fumecheng-2369	80	9	jumping	jumping	ADJ
fumecheng-2369	80	10	”	"	PUNCT
fumecheng-2369	80	11	case	case	NOUN
fumecheng-2369	80	12	is	be	AUX
fumecheng-2369	80	13	considered	consider	VERB
fumecheng-2369	80	14	in	in	ADP
fumecheng-2369	80	15	the	the	DET
fumecheng-2369	80	16	following	following	NOUN
fumecheng-2369	80	17	.	.	PUNCT
fumecheng-2369	81	1	the	the	DET
fumecheng-2369	81	2	static	static	ADJ
fumecheng-2369	81	3	force	force	NOUN
fumecheng-2369	81	4	of	of	ADP
fumecheng-2369	81	5	friction	friction	NOUN
fumecheng-2369	81	6	(	(	PUNCT
fumecheng-2369	81	7	the	the	DET
fumecheng-2369	81	8	force	force	NOUN
fumecheng-2369	81	9	at	at	ADP
fumecheng-2369	81	10	zero	zero	NUM
fumecheng-2369	81	11	sliding	slide	VERB
fumecheng-2369	81	12	velocity	velocity	NOUN
fumecheng-2369	81	13	)	)	PUNCT
fumecheng-2369	81	14	can	can	AUX
fumecheng-2369	81	15	be	be	AUX
fumecheng-2369	81	16	calculated	calculate	VERB
fumecheng-2369	81	17	easily	easily	ADV
fumecheng-2369	81	18	by	by	ADP
fumecheng-2369	81	19	noting	note	VERB
fumecheng-2369	81	20	that	that	SCONJ
fumecheng-2369	81	21	,	,	PUNCT
fumecheng-2369	81	22	according	accord	VERB
fumecheng-2369	81	23	to	to	ADP
fumecheng-2369	81	24	eq	eq	PROPN
fumecheng-2369	81	25	.	.	PUNCT
fumecheng-2369	82	1	(	(	PUNCT
fumecheng-2369	82	2	4	4	NUM
fumecheng-2369	82	3	)	)	PUNCT
fumecheng-2369	82	4	,	,	PUNCT
fumecheng-2369	82	5	the	the	DET
fumecheng-2369	82	6	amplitude	amplitude	NOUN
fumecheng-2369	82	7	of	of	ADP
fumecheng-2369	82	8	the	the	DET
fumecheng-2369	82	9	oscillation	oscillation	NOUN
fumecheng-2369	82	10	of	of	ADP
fumecheng-2369	82	11	the	the	DET
fumecheng-2369	82	12	normal	normal	ADJ
fumecheng-2369	82	13	force	force	NOUN
fumecheng-2369	82	14	is	be	AUX
fumecheng-2369	82	15	equal	equal	ADJ
fumecheng-2369	82	16	to	to	ADP
fumecheng-2369	82	17	:	:	PUNCT
fumecheng-2369	82	18	2	2	NUM
fumecheng-2369	82	19	2	2	NUM
fumecheng-2369	82	20	2	2	NUM
fumecheng-2369	82	21	n	n	PROPN
fumecheng-2369	82	22	z	z	NOUN
fumecheng-2369	82	23	z	z	NOUN
fumecheng-2369	82	24	,	,	PUNCT
fumecheng-2369	82	25	c	c	PROPN
fumecheng-2369	82	26	z	z	NOUN
fumecheng-2369	82	27	,	,	PUNCT
fumecheng-2369	82	28	cf	cf	NOUN
fumecheng-2369	82	29	u	u	NOUN
fumecheng-2369	82	30	k	k	PROPN
fumecheng-2369	82	31			PROPN
fumecheng-2369	82	32			NOUN
fumecheng-2369	82	33			PROPN
fumecheng-2369	82	34			NUM
fumecheng-2369	82	35			X
fumecheng-2369	82	36	.	.	PUNCT
fumecheng-2369	83	1	(	(	PUNCT
fumecheng-2369	83	2	6	6	NUM
fumecheng-2369	83	3	)	)	PUNCT
fumecheng-2369	83	4	the	the	DET
fumecheng-2369	83	5	static	static	ADJ
fumecheng-2369	83	6	force	force	NOUN
fumecheng-2369	83	7	of	of	ADP
fumecheng-2369	83	8	friction	friction	NOUN
fumecheng-2369	83	9	is	be	AUX
fumecheng-2369	83	10	equal	equal	ADJ
fumecheng-2369	83	11	to	to	ADP
fumecheng-2369	83	12	the	the	DET
fumecheng-2369	83	13	minimal	minimal	ADJ
fumecheng-2369	83	14	normal	normal	ADJ
fumecheng-2369	83	15	force	force	NOUN
fumecheng-2369	83	16	during	during	ADP
fumecheng-2369	83	17	an	an	DET
fumecheng-2369	83	18	oscillation	oscillation	NOUN
fumecheng-2369	83	19	cycle	cycle	NOUN
fumecheng-2369	83	20	,	,	PUNCT
fumecheng-2369	83	21	multiplied	multiply	VERB
fumecheng-2369	83	22	with	with	ADP
fumecheng-2369	83	23	the	the	DET
fumecheng-2369	83	24	coefficient	coefficient	NOUN
fumecheng-2369	83	25	of	of	ADP
fumecheng-2369	83	26	friction	friction	NOUN
fumecheng-2369	83	27	:	:	PUNCT
fumecheng-2369	83	28	2	2	NUM
fumecheng-2369	83	29	2	2	NUM
fumecheng-2369	83	30	2	2	NUM
fumecheng-2369	83	31	0	0	NUM
fumecheng-2369	83	32	,	,	PUNCT
fumecheng-2369	83	33	0	0	NUM
fumecheng-2369	83	34	0	0	NUM
fumecheng-2369	83	35	,	,	PUNCT
fumecheng-2369	83	36	,	,	PUNCT
fumecheng-2369	83	37	0	0	NUM
fumecheng-2369	83	38	,	,	PUNCT
fumecheng-2369	83	39	,	,	PUNCT
fumecheng-2369	83	40	(	(	PUNCT
fumecheng-2369	83	41	)	)	PUNCT
fumecheng-2369	83	42	(	(	PUNCT
fumecheng-2369	83	43	)	)	PUNCT
fumecheng-2369	83	44	s	s	NOUN
fumecheng-2369	83	45	n	n	CCONJ
fumecheng-2369	83	46	n	n	NOUN
fumecheng-2369	83	47	z	z	NOUN
fumecheng-2369	83	48	c	c	NOUN
fumecheng-2369	83	49	z	z	NOUN
fumecheng-2369	83	50	z	z	NOUN
fumecheng-2369	83	51	z	z	NOUN
fumecheng-2369	84	1	c	c	NOUN
fumecheng-2369	84	2	z	z	NOUN
fumecheng-2369	84	3	cf	cf	NOUN
fumecheng-2369	85	1	f	f	PROPN
fumecheng-2369	85	2	f	f	PROPN
fumecheng-2369	85	3	k	k	PROPN
fumecheng-2369	85	4	u	u	PROPN
fumecheng-2369	85	5	u	u	NOUN
fumecheng-2369	85	6	k	k	ADJ
fumecheng-2369	85	7			NOUN
fumecheng-2369	85	8			PROPN
fumecheng-2369	85	9			NOUN
fumecheng-2369	85	10			NOUN
fumecheng-2369	85	11			PROPN
fumecheng-2369	85	12			ADV
fumecheng-2369	85	13			NUM
fumecheng-2369	85	14			X
fumecheng-2369	85	15	.	.	PUNCT
fumecheng-2369	86	1	(	(	PUNCT
fumecheng-2369	86	2	7	7	X
fumecheng-2369	86	3	)	)	PUNCT
fumecheng-2369	86	4	2.2.2	2.2.2	NUM
fumecheng-2369	86	5	tangential	tangential	ADJ
fumecheng-2369	86	6	movement	movement	NOUN
fumecheng-2369	86	7	under	under	ADP
fumecheng-2369	86	8	the	the	DET
fumecheng-2369	86	9	assumption	assumption	NOUN
fumecheng-2369	86	10	that	that	SCONJ
fumecheng-2369	86	11	the	the	DET
fumecheng-2369	86	12	immediate	immediate	ADJ
fumecheng-2369	86	13	contact	contact	NOUN
fumecheng-2369	86	14	point	point	NOUN
fumecheng-2369	86	15	is	be	AUX
fumecheng-2369	86	16	always	always	ADV
fumecheng-2369	86	17	in	in	ADP
fumecheng-2369	86	18	the	the	DET
fumecheng-2369	86	19	sliding	slide	VERB
fumecheng-2369	86	20	state	state	NOUN
fumecheng-2369	86	21	,	,	PUNCT
fumecheng-2369	86	22	the	the	DET
fumecheng-2369	86	23	equation	equation	NOUN
fumecheng-2369	86	24	of	of	ADP
fumecheng-2369	86	25	motion	motion	NOUN
fumecheng-2369	86	26	of	of	ADP
fumecheng-2369	86	27	mass	mass	NOUN
fumecheng-2369	86	28	m	m	NOUN
fumecheng-2369	86	29	reads	read	VERB
fumecheng-2369	86	30	:	:	PUNCT
fumecheng-2369	86	31	0	0	NUM
fumecheng-2369	86	32	0	0	NUM
fumecheng-2369	86	33	(	(	PUNCT
fumecheng-2369	86	34	)	)	PUNCT
fumecheng-2369	86	35	x	x	SYM
fumecheng-2369	86	36	x	x	SYM
fumecheng-2369	86	37	x	x	X
fumecheng-2369	86	38	nmu	nmu	PROPN
fumecheng-2369	86	39	k	k	PROPN
fumecheng-2369	86	40	v	v	ADP
fumecheng-2369	86	41	t	t	PROPN
fumecheng-2369	86	42	u	u	PROPN
fumecheng-2369	86	43	f	f	PROPN
fumecheng-2369	86	44			PROPN
fumecheng-2369	86	45			PROPN
fumecheng-2369	86	46	.	.	PUNCT
fumecheng-2369	87	1	(	(	PUNCT
fumecheng-2369	87	2	8)	8)	NUM
fumecheng-2369	87	3	the	the	DET
fumecheng-2369	87	4	equilibrium	equilibrium	NOUN
fumecheng-2369	87	5	condition	condition	NOUN
fumecheng-2369	87	6	for	for	ADP
fumecheng-2369	87	7	the	the	DET
fumecheng-2369	87	8	“	"	PUNCT
fumecheng-2369	87	9	foot	foot	NOUN
fumecheng-2369	87	10	point	point	NOUN
fumecheng-2369	87	11	”	"	PUNCT
fumecheng-2369	87	12	of	of	ADP
fumecheng-2369	87	13	the	the	DET
fumecheng-2369	87	14	spring	spring	NOUN
fumecheng-2369	87	15	-	-	PUNCT
fumecheng-2369	87	16	damper	damper	NOUN
fumecheng-2369	87	17	combination	combination	NOUN
fumecheng-2369	87	18	reads	read	VERB
fumecheng-2369	87	19	:	:	PUNCT
fumecheng-2369	87	20	0	0	NUM
fumecheng-2369	87	21	(	(	PUNCT
fumecheng-2369	87	22	)	)	PUNCT
fumecheng-2369	87	23	(	(	PUNCT
fumecheng-2369	87	24	)	)	PUNCT
fumecheng-2369	87	25	x	x	X
fumecheng-2369	87	26	,	,	PUNCT
fumecheng-2369	87	27	c	c	NOUN
fumecheng-2369	87	28	x	x	SYM
fumecheng-2369	87	29	x	x	NOUN
fumecheng-2369	87	30	,	,	PUNCT
fumecheng-2369	87	31	c	c	NOUN
fumecheng-2369	87	32	x	x	NOUN
fumecheng-2369	87	33	,	,	PUNCT
fumecheng-2369	87	34	c	c	NOUN
fumecheng-2369	87	35	x	x	SYM
fumecheng-2369	87	36	x	x	NOUN
fumecheng-2369	87	37	,	,	PUNCT
fumecheng-2369	87	38	c	c	PROPN
fumecheng-2369	87	39	nk	nk	PROPN
fumecheng-2369	87	40	u	u	PROPN
fumecheng-2369	87	41	u	u	NOUN
fumecheng-2369	87	42	u	u	NOUN
fumecheng-2369	87	43	u	u	NOUN
fumecheng-2369	87	44	f	f	ADV
fumecheng-2369	87	45			PUNCT
fumecheng-2369	87	46			NUM
fumecheng-2369	87	47			NOUN
fumecheng-2369	87	48			NUM
fumecheng-2369	87	49			NOUN
fumecheng-2369	87	50	,	,	PUNCT
fumecheng-2369	87	51	(	(	PUNCT
fumecheng-2369	87	52	9	9	X
fumecheng-2369	87	53	)	)	PUNCT
fumecheng-2369	87	54	where	where	SCONJ
fumecheng-2369	87	55	fn	fn	NOUN
fumecheng-2369	87	56	is	be	AUX
fumecheng-2369	87	57	given	give	VERB
fumecheng-2369	87	58	by	by	ADP
fumecheng-2369	87	59	eq	eq	PROPN
fumecheng-2369	87	60	.	.	PUNCT
fumecheng-2369	88	1	(	(	PUNCT
fumecheng-2369	88	2	4	4	NUM
fumecheng-2369	88	3	)	)	PUNCT
fumecheng-2369	88	4	.	.	PUNCT
fumecheng-2369	89	1	equation	equation	NOUN
fumecheng-2369	89	2	(	(	PUNCT
fumecheng-2369	89	3	8)	8)	NUM
fumecheng-2369	89	4	,	,	PUNCT
fumecheng-2369	89	5	after	after	ADP
fumecheng-2369	89	6	inserting	insert	VERB
fumecheng-2369	89	7	eq	eq	ADP
fumecheng-2369	89	8	.	.	PUNCT
fumecheng-2369	89	9	(	(	PUNCT
fumecheng-2369	89	10	4	4	NUM
fumecheng-2369	89	11	)	)	PUNCT
fumecheng-2369	89	12	on	on	ADP
fumecheng-2369	89	13	the	the	DET
fumecheng-2369	89	14	right	right	ADJ
fumecheng-2369	89	15	hand	hand	NOUN
fumecheng-2369	89	16	side	side	NOUN
fumecheng-2369	89	17	,	,	PUNCT
fumecheng-2369	89	18	can	can	AUX
fumecheng-2369	89	19	be	be	AUX
fumecheng-2369	89	20	easily	easily	ADV
fumecheng-2369	89	21	solved	solve	VERB
fumecheng-2369	89	22	with	with	ADP
fumecheng-2369	89	23	respect	respect	NOUN
fumecheng-2369	89	24	to	to	ADP
fumecheng-2369	89	25	ux	ux	NOUN
fumecheng-2369	89	26	:	:	PUNCT
fumecheng-2369	89	27	0	0	NUM
fumecheng-2369	89	28	0	0	NUM
fumecheng-2369	89	29	0	0	NUM
fumecheng-2369	89	30	0	0	NUM
fumecheng-2369	89	31	2	2	NUM
fumecheng-2369	89	32	(	(	PUNCT
fumecheng-2369	89	33	)	)	PUNCT
fumecheng-2369	89	34	z	z	NOUN
fumecheng-2369	89	35	,	,	PUNCT
fumecheng-2369	90	1	c	c	PROPN
fumecheng-2369	90	2	z	z	NOUN
fumecheng-2369	90	3	x	x	SYM
fumecheng-2369	90	4	z	z	NOUN
fumecheng-2369	90	5	,	,	PUNCT
fumecheng-2369	90	6	z	z	NOUN
fumecheng-2369	90	7	,	,	PUNCT
fumecheng-2369	90	8	c	c	PROPN
fumecheng-2369	90	9	z	z	NOUN
fumecheng-2369	90	10	,	,	PUNCT
fumecheng-2369	90	11	c	c	NOUN
fumecheng-2369	90	12	x	x	PUNCT
fumecheng-2369	90	13	x	x	X
fumecheng-2369	90	14	k	k	X
fumecheng-2369	90	15	u	u	X
fumecheng-2369	90	16	u	u	NOUN
fumecheng-2369	90	17	v	v	ADP
fumecheng-2369	90	18	t	t	X
fumecheng-2369	90	19	u	u	X
fumecheng-2369	90	20	k	k	PROPN
fumecheng-2369	90	21	cos	cos	PROPN
fumecheng-2369	90	22	t	t	PROPN
fumecheng-2369	90	23	sin	sin	NOUN
fumecheng-2369	91	1	t	t	PROPN
fumecheng-2369	91	2	k	k	PROPN
fumecheng-2369	91	3	m	m	VERB
fumecheng-2369	91	4	k	k	X
fumecheng-2369	91	5			NOUN
fumecheng-2369	91	6			PUNCT
fumecheng-2369	92	1			PROPN
fumecheng-2369	92	2			PROPN
fumecheng-2369	92	3			VERB
fumecheng-2369	92	4			PROPN
fumecheng-2369	92	5			PROPN
fumecheng-2369	92	6			NUM
fumecheng-2369	92	7			X
fumecheng-2369	92	8			X
fumecheng-2369	92	9			X
fumecheng-2369	92	10			PROPN
fumecheng-2369	92	11	.	.	PUNCT
fumecheng-2369	93	1	(	(	PUNCT
fumecheng-2369	93	2	10	10	NUM
fumecheng-2369	93	3	)	)	PUNCT
fumecheng-2369	93	4	in	in	ADP
fumecheng-2369	93	5	our	our	PRON
fumecheng-2369	93	6	analysis	analysis	NOUN
fumecheng-2369	93	7	we	we	PRON
fumecheng-2369	93	8	assume	assume	VERB
fumecheng-2369	93	9	that	that	SCONJ
fumecheng-2369	93	10	the	the	DET
fumecheng-2369	93	11	material	material	NOUN
fumecheng-2369	93	12	of	of	ADP
fumecheng-2369	93	13	the	the	DET
fumecheng-2369	93	14	contacting	contact	VERB
fumecheng-2369	93	15	elastomer	elastomer	NOUN
fumecheng-2369	93	16	body	body	NOUN
fumecheng-2369	93	17	is	be	AUX
fumecheng-2369	93	18	isotropic	isotropic	ADJ
fumecheng-2369	93	19	,	,	PUNCT
fumecheng-2369	93	20	with	with	ADP
fumecheng-2369	93	21	a	a	DET
fumecheng-2369	93	22	constant	constant	ADJ
fumecheng-2369	93	23	(	(	PUNCT
fumecheng-2369	93	24	frequency	frequency	NOUN
fumecheng-2369	93	25	-	-	PUNCT
fumecheng-2369	93	26	independent	independent	ADJ
fumecheng-2369	93	27	)	)	PUNCT
fumecheng-2369	93	28	poisson	poisson	NOUN
fumecheng-2369	93	29	number	number	NOUN
fumecheng-2369	93	30	.	.	PUNCT
fumecheng-2369	94	1	under	under	ADP
fumecheng-2369	94	2	these	these	DET
fumecheng-2369	94	3	conditions	condition	NOUN
fumecheng-2369	94	4	,	,	PUNCT
fumecheng-2369	94	5	we	we	PRON
fumecheng-2369	94	6	have	have	VERB
fumecheng-2369	94	7	:	:	PUNCT
fumecheng-2369	94	8	x	x	X
fumecheng-2369	94	9	,	,	PUNCT
fumecheng-2369	94	10	c	c	NOUN
fumecheng-2369	94	11	x	x	X
fumecheng-2369	94	12	,	,	PUNCT
fumecheng-2369	94	13	c	c	PROPN
fumecheng-2369	94	14	z	z	NOUN
fumecheng-2369	94	15	,	,	PUNCT
fumecheng-2369	94	16	c	c	PROPN
fumecheng-2369	94	17	z	z	NOUN
fumecheng-2369	94	18	,	,	PUNCT
fumecheng-2369	95	1	c	c	PROPN
fumecheng-2369	95	2	k	k	PROPN
fumecheng-2369	95	3	k	k	PROPN
fumecheng-2369	95	4			NUM
fumecheng-2369	95	5			NUM
fumecheng-2369	95	6			NUM
fumecheng-2369	95	7	.	.	PUNCT
fumecheng-2369	96	1	(	(	PUNCT
fumecheng-2369	96	2	11	11	NUM
fumecheng-2369	96	3	)	)	PUNCT
fumecheng-2369	96	4	equation	equation	NOUN
fumecheng-2369	96	5	(	(	PUNCT
fumecheng-2369	96	6	9	9	X
fumecheng-2369	96	7	)	)	PUNCT
fumecheng-2369	96	8	can	can	AUX
fumecheng-2369	96	9	also	also	ADV
fumecheng-2369	96	10	be	be	AUX
fumecheng-2369	96	11	solved	solve	VERB
fumecheng-2369	96	12	with	with	ADP
fumecheng-2369	96	13	respect	respect	NOUN
fumecheng-2369	96	14	to	to	ADP
fumecheng-2369	96	15	(	(	PUNCT
fumecheng-2369	96	16	ux	ux	INTJ
fumecheng-2369	96	17	–	–	PUNCT
fumecheng-2369	96	18	ux	ux	PROPN
fumecheng-2369	96	19	,	,	PUNCT
fumecheng-2369	96	20	c	c	NOUN
fumecheng-2369	96	21	):	):	PUNCT
fumecheng-2369	96	22	0	0	NUM
fumecheng-2369	96	23	0	0	NUM
fumecheng-2369	96	24	(	(	PUNCT
fumecheng-2369	96	25	)	)	PUNCT
fumecheng-2369	96	26	z	z	NOUN
fumecheng-2369	96	27	,	,	PUNCT
fumecheng-2369	96	28	c	c	NOUN
fumecheng-2369	96	29	x	x	PUNCT
fumecheng-2369	96	30	x	x	NOUN
fumecheng-2369	96	31	,	,	PUNCT
fumecheng-2369	96	32	c	c	PROPN
fumecheng-2369	96	33	z.	z.	PROPN
fumecheng-2369	96	34	z	z	PROPN
fumecheng-2369	96	35	x	x	PUNCT
fumecheng-2369	96	36	,	,	PUNCT
fumecheng-2369	96	37	c	c	PROPN
fumecheng-2369	96	38	k	k	NOUN
fumecheng-2369	96	39	u	u	X
fumecheng-2369	96	40	u	u	VERB
fumecheng-2369	96	41	u	u	NOUN
fumecheng-2369	96	42	u	u	PROPN
fumecheng-2369	96	43	cos	cos	PROPN
fumecheng-2369	96	44	t	t	PROPN
fumecheng-2369	96	45	k	k	PROPN
fumecheng-2369	96	46			PROPN
fumecheng-2369	96	47			PROPN
fumecheng-2369	96	48			NOUN
fumecheng-2369	96	49			NOUN
fumecheng-2369	96	50			X
fumecheng-2369	96	51	.	.	PUNCT
fumecheng-2369	97	1	(	(	PUNCT
fumecheng-2369	97	2	12	12	NUM
fumecheng-2369	97	3	)	)	PUNCT
fumecheng-2369	97	4	from	from	ADP
fumecheng-2369	97	5	eqs	eqs	PROPN
fumecheng-2369	97	6	.	.	PUNCT
fumecheng-2369	98	1	(	(	PUNCT
fumecheng-2369	98	2	10	10	NUM
fumecheng-2369	98	3	)	)	PUNCT
fumecheng-2369	98	4	and	and	CCONJ
fumecheng-2369	98	5	(	(	PUNCT
fumecheng-2369	98	6	12	12	NUM
fumecheng-2369	98	7	)	)	PUNCT
fumecheng-2369	98	8	we	we	PRON
fumecheng-2369	98	9	can	can	AUX
fumecheng-2369	98	10	first	first	ADV
fumecheng-2369	98	11	determine	determine	VERB
fumecheng-2369	98	12	ux	ux	PROPN
fumecheng-2369	98	13	,	,	PUNCT
fumecheng-2369	98	14	c	c	NOUN
fumecheng-2369	98	15	:	:	PUNCT
fumecheng-2369	98	16	340	340	NUM
fumecheng-2369	98	17	m.	m.	NOUN
fumecheng-2369	98	18	popov	popov	NOUN
fumecheng-2369	98	19	0	0	NUM
fumecheng-2369	98	20	0	0	NUM
fumecheng-2369	98	21	0	0	NUM
fumecheng-2369	98	22	0	0	NUM
fumecheng-2369	98	23	02	02	NUM
fumecheng-2369	98	24	1	1	NUM
fumecheng-2369	98	25	1	1	NUM
fumecheng-2369	98	26	(	(	PUNCT
fumecheng-2369	98	27	)	)	PUNCT
fumecheng-2369	98	28	z	z	NOUN
fumecheng-2369	98	29	,	,	PUNCT
fumecheng-2369	98	30	cz	cz	NOUN
fumecheng-2369	98	31	x	x	NOUN
fumecheng-2369	98	32	,	,	PUNCT
fumecheng-2369	98	33	c	c	PROPN
fumecheng-2369	98	34	z	z	NOUN
fumecheng-2369	98	35	,	,	PUNCT
fumecheng-2369	98	36	c	c	PROPN
fumecheng-2369	98	37	z	z	NOUN
fumecheng-2369	98	38	,	,	PUNCT
fumecheng-2369	98	39	z	z	NOUN
fumecheng-2369	98	40	,	,	PUNCT
fumecheng-2369	98	41	c	c	PROPN
fumecheng-2369	98	42	z	z	NOUN
fumecheng-2369	98	43	,	,	PUNCT
fumecheng-2369	98	44	c	c	PROPN
fumecheng-2369	98	45	z	z	NOUN
fumecheng-2369	98	46	x	x	SYM
fumecheng-2369	98	47	x	x	NOUN
fumecheng-2369	98	48	,	,	PUNCT
fumecheng-2369	98	49	c	c	PROPN
fumecheng-2369	98	50	x	x	PROPN
fumecheng-2369	98	51	,	,	PUNCT
fumecheng-2369	98	52	cx	cx	PROPN
fumecheng-2369	98	53	ku	ku	PROPN
fumecheng-2369	98	54	u	u	PROPN
fumecheng-2369	98	55	v	v	ADP
fumecheng-2369	98	56	t	t	X
fumecheng-2369	98	57	k	k	X
fumecheng-2369	98	58	u	u	PROPN
fumecheng-2369	98	59	k	k	PROPN
fumecheng-2369	98	60	cos	cos	PROPN
fumecheng-2369	98	61	t	t	PROPN
fumecheng-2369	98	62	sin	sin	PROPN
fumecheng-2369	98	63	t	t	PROPN
fumecheng-2369	98	64	u	u	PROPN
fumecheng-2369	98	65	cos	cos	PROPN
fumecheng-2369	98	66	t	t	PROPN
fumecheng-2369	98	67	k	k	PROPN
fumecheng-2369	98	68	k	k	PROPN
fumecheng-2369	98	69	km	km	PROPN
fumecheng-2369	98	70	k	k	PROPN
fumecheng-2369	98	71			NOUN
fumecheng-2369	98	72			PROPN
fumecheng-2369	98	73			NOUN
fumecheng-2369	98	74			PUNCT
fumecheng-2369	99	1			PROPN
fumecheng-2369	99	2			PROPN
fumecheng-2369	99	3			ADV
fumecheng-2369	99	4			PUNCT
fumecheng-2369	99	5			PROPN
fumecheng-2369	99	6			PROPN
fumecheng-2369	99	7			NUM
fumecheng-2369	99	8			X
fumecheng-2369	99	9			PROPN
fumecheng-2369	99	10			PROPN
fumecheng-2369	99	11			PUNCT
fumecheng-2369	100	1			X
fumecheng-2369	100	2			X
fumecheng-2369	100	3			X
fumecheng-2369	101	1			X
fumecheng-2369	101	2			PROPN
fumecheng-2369	101	3			NOUN
fumecheng-2369	101	4	(	(	PUNCT
fumecheng-2369	101	5	13	13	NUM
fumecheng-2369	101	6	)	)	PUNCT
fumecheng-2369	101	7	and	and	CCONJ
fumecheng-2369	101	8	finally	finally	ADV
fumecheng-2369	101	9	x	x	X
fumecheng-2369	101	10	,	,	PUNCT
fumecheng-2369	101	11	cu	cu	NOUN
fumecheng-2369	101	12	:	:	PUNCT
fumecheng-2369	101	13	20	20	NUM
fumecheng-2369	101	14	0	0	NUM
fumecheng-2369	101	15	02	02	NUM
fumecheng-2369	101	16	2	2	NUM
fumecheng-2369	101	17	20	20	NUM
fumecheng-2369	101	18	0	0	NUM
fumecheng-2369	101	19	02	02	NUM
fumecheng-2369	101	20	2	2	NUM
fumecheng-2369	101	21	(	(	PUNCT
fumecheng-2369	101	22	)	)	PUNCT
fumecheng-2369	101	23	(	(	PUNCT
fumecheng-2369	101	24	)	)	PUNCT
fumecheng-2369	101	25	z	z	NOUN
fumecheng-2369	101	26	,	,	PUNCT
fumecheng-2369	101	27	cz	cz	NOUN
fumecheng-2369	101	28	x	x	SYM
fumecheng-2369	101	29	,	,	PUNCT
fumecheng-2369	101	30	c	c	PROPN
fumecheng-2369	101	31	z	z	NOUN
fumecheng-2369	101	32	,	,	PUNCT
fumecheng-2369	101	33	c	c	PROPN
fumecheng-2369	101	34	z	z	NOUN
fumecheng-2369	101	35	,	,	PUNCT
fumecheng-2369	101	36	c	c	PROPN
fumecheng-2369	101	37	z	z	NOUN
fumecheng-2369	101	38	x	x	SYM
fumecheng-2369	101	39	,	,	PUNCT
fumecheng-2369	101	40	cx	cx	PROPN
fumecheng-2369	101	41	z	z	PROPN
fumecheng-2369	101	42	,	,	PUNCT
fumecheng-2369	101	43	c	c	NOUN
fumecheng-2369	101	44	x	x	PUNCT
fumecheng-2369	101	45	,	,	PUNCT
fumecheng-2369	101	46	c	c	PROPN
fumecheng-2369	101	47	xz	xz	PROPN
fumecheng-2369	101	48	z	z	PROPN
fumecheng-2369	101	49	,	,	PUNCT
fumecheng-2369	101	50	c	c	PROPN
fumecheng-2369	101	51	z	z	NOUN
fumecheng-2369	101	52	x	x	X
fumecheng-2369	101	53	,	,	PUNCT
fumecheng-2369	101	54	cx	cx	PROPN
fumecheng-2369	101	55	x	x	SYM
fumecheng-2369	101	56	ku	ku	PROPN
fumecheng-2369	101	57	u	u	PROPN
fumecheng-2369	101	58	v	v	PROPN
fumecheng-2369	101	59	k	k	PROPN
fumecheng-2369	101	60	sin	sin	PROPN
fumecheng-2369	101	61	t	t	PROPN
fumecheng-2369	101	62	cos	cos	PROPN
fumecheng-2369	101	63	t	t	PROPN
fumecheng-2369	101	64	u	u	PROPN
fumecheng-2369	101	65	sin	sin	VERB
fumecheng-2369	101	66	t	t	PROPN
fumecheng-2369	101	67	km	km	PROPN
fumecheng-2369	102	1	k	k	PROPN
fumecheng-2369	103	1	k	k	PROPN
fumecheng-2369	103	2	k	k	PROPN
fumecheng-2369	103	3	k	k	PROPN
fumecheng-2369	103	4	mu	mu	PROPN
fumecheng-2369	103	5	v	v	PROPN
fumecheng-2369	103	6	cos	cos	PROPN
fumecheng-2369	103	7	t	t	PROPN
fumecheng-2369	103	8	u	u	PROPN
fumecheng-2369	103	9	sin	sin	VERB
fumecheng-2369	103	10	t	t	PROPN
fumecheng-2369	103	11	km	km	PROPN
fumecheng-2369	103	12	k	k	PROPN
fumecheng-2369	103	13	m	m	VERB
fumecheng-2369	103	14	k	k	X
fumecheng-2369	103	15			NOUN
fumecheng-2369	103	16			NOUN
fumecheng-2369	104	1			NUM
fumecheng-2369	104	2			ADV
fumecheng-2369	104	3			X
fumecheng-2369	104	4			X
fumecheng-2369	104	5			PROPN
fumecheng-2369	104	6			PROPN
fumecheng-2369	104	7			NUM
fumecheng-2369	104	8			PROPN
fumecheng-2369	104	9			PUNCT
fumecheng-2369	104	10			PROPN
fumecheng-2369	104	11			PUNCT
fumecheng-2369	104	12			X
fumecheng-2369	104	13			X
fumecheng-2369	104	14			X
fumecheng-2369	104	15			PROPN
fumecheng-2369	104	16			PROPN
fumecheng-2369	104	17			PROPN
fumecheng-2369	104	18			ADV
fumecheng-2369	104	19			PROPN
fumecheng-2369	104	20			NOUN
fumecheng-2369	104	21			NUM
fumecheng-2369	104	22			PROPN
fumecheng-2369	104	23			NUM
fumecheng-2369	104	24			PROPN
fumecheng-2369	104	25			PUNCT
fumecheng-2369	104	26			PROPN
fumecheng-2369	104	27			PUNCT
fumecheng-2369	104	28			X
fumecheng-2369	104	29			X
fumecheng-2369	104	30			X
fumecheng-2369	104	31			PROPN
fumecheng-2369	104	32			X
fumecheng-2369	104	33			PROPN
fumecheng-2369	104	34	(	(	PUNCT
fumecheng-2369	104	35	14	14	NUM
fumecheng-2369	104	36	)	)	PUNCT
fumecheng-2369	104	37	the	the	DET
fumecheng-2369	104	38	critical	critical	ADJ
fumecheng-2369	104	39	velocity	velocity	NOUN
fumecheng-2369	104	40	of	of	ADP
fumecheng-2369	104	41	controllability	controllability	NOUN
fumecheng-2369	104	42	is	be	AUX
fumecheng-2369	104	43	given	give	VERB
fumecheng-2369	104	44	by	by	ADP
fumecheng-2369	104	45	the	the	DET
fumecheng-2369	104	46	condition	condition	NOUN
fumecheng-2369	104	47	that	that	SCONJ
fumecheng-2369	104	48	the	the	DET
fumecheng-2369	104	49	amplitude	amplitude	NOUN
fumecheng-2369	104	50	of	of	ADP
fumecheng-2369	104	51	the	the	DET
fumecheng-2369	104	52	oscillating	oscillate	VERB
fumecheng-2369	104	53	part	part	NOUN
fumecheng-2369	104	54	of	of	ADP
fumecheng-2369	104	55	this	this	DET
fumecheng-2369	104	56	solution	solution	NOUN
fumecheng-2369	104	57	becomes	become	VERB
fumecheng-2369	104	58	equal	equal	ADJ
fumecheng-2369	104	59	to	to	AUX
fumecheng-2369	104	60	constant	constant	ADJ
fumecheng-2369	104	61	sliding	slide	VERB
fumecheng-2369	104	62	velocity	velocity	NOUN
fumecheng-2369	104	63	vc	vc	NOUN
fumecheng-2369	104	64	:	:	SYM
fumecheng-2369	104	65	2	2	NUM
fumecheng-2369	104	66	2	2	NUM
fumecheng-2369	104	67	20	20	NUM
fumecheng-2369	104	68	2	2	NUM
fumecheng-2369	104	69	(	(	PUNCT
fumecheng-2369	104	70	)	)	PUNCT
fumecheng-2369	104	71	(	(	PUNCT
fumecheng-2369	104	72	)	)	PUNCT
fumecheng-2369	104	73	z	z	NOUN
fumecheng-2369	104	74	,	,	PUNCT
fumecheng-2369	104	75	cz	cz	NOUN
fumecheng-2369	104	76	c	c	NOUN
fumecheng-2369	104	77	z	z	PROPN
fumecheng-2369	104	78	,	,	PUNCT
fumecheng-2369	104	79	c	c	PROPN
fumecheng-2369	104	80	x	x	PROPN
fumecheng-2369	104	81	,	,	PUNCT
fumecheng-2369	104	82	c	c	NOUN
fumecheng-2369	104	83	x	x	SYM
fumecheng-2369	104	84	x	x	X
fumecheng-2369	104	85	,	,	PUNCT
fumecheng-2369	104	86	cx	cx	PROPN
fumecheng-2369	104	87	ku	ku	PROPN
fumecheng-2369	104	88	v	v	INTJ
fumecheng-2369	104	89	m	m	PROPN
fumecheng-2369	104	90	k	k	PROPN
fumecheng-2369	105	1	k	k	X
fumecheng-2369	105	2	k|	k|	PROPN
fumecheng-2369	105	3	m	m	VERB
fumecheng-2369	105	4	k	k	NOUN
fumecheng-2369	105	5	|	|	ADV
fumecheng-2369	105	6			NOUN
fumecheng-2369	105	7			PROPN
fumecheng-2369	105	8			VERB
fumecheng-2369	106	1			X
fumecheng-2369	106	2			NUM
fumecheng-2369	106	3			NUM
fumecheng-2369	106	4			PROPN
fumecheng-2369	106	5			ADV
fumecheng-2369	106	6			PROPN
fumecheng-2369	106	7			X
fumecheng-2369	106	8			NOUN
fumecheng-2369	106	9			NOUN
fumecheng-2369	106	10			X
fumecheng-2369	106	11			PROPN
fumecheng-2369	106	12			PROPN
fumecheng-2369	106	13			PROPN
fumecheng-2369	106	14			NOUN
fumecheng-2369	106	15	.	.	PUNCT
fumecheng-2369	107	1	(	(	PUNCT
fumecheng-2369	107	2	15	15	X
fumecheng-2369	107	3	)	)	PUNCT
fumecheng-2369	107	4	note	note	NOUN
fumecheng-2369	107	5	that	that	SCONJ
fumecheng-2369	107	6	the	the	DET
fumecheng-2369	107	7	critical	critical	ADJ
fumecheng-2369	107	8	velocity	velocity	NOUN
fumecheng-2369	107	9	depends	depend	VERB
fumecheng-2369	107	10	on	on	ADP
fumecheng-2369	107	11	the	the	DET
fumecheng-2369	107	12	oscillation	oscillation	NOUN
fumecheng-2369	107	13	amplitude	amplitude	NOUN
fumecheng-2369	107	14	but	but	CCONJ
fumecheng-2369	107	15	not	not	PART
fumecheng-2369	107	16	on	on	ADP
fumecheng-2369	107	17	the	the	DET
fumecheng-2369	107	18	average	average	ADJ
fumecheng-2369	107	19	indentation	indentation	NOUN
fumecheng-2369	107	20	.	.	PUNCT
fumecheng-2369	108	1	in	in	ADP
fumecheng-2369	108	2	the	the	DET
fumecheng-2369	108	3	limit	limit	NOUN
fumecheng-2369	108	4	of	of	ADP
fumecheng-2369	108	5	a	a	DET
fumecheng-2369	108	6	very	very	ADV
fumecheng-2369	108	7	stiff	stiff	ADJ
fumecheng-2369	108	8	system	system	NOUN
fumecheng-2369	108	9	spring	spring	NOUN
fumecheng-2369	108	10	,	,	PUNCT
fumecheng-2369	108	11	kx	kx	PROPN
fumecheng-2369	108	12	,	,	PUNCT
fumecheng-2369	108	13	the	the	DET
fumecheng-2369	108	14	critical	critical	ADJ
fumecheng-2369	108	15	velocity	velocity	NOUN
fumecheng-2369	108	16	,	,	PUNCT
fumecheng-2369	108	17	eq	eq	NOUN
fumecheng-2369	108	18	.	.	PUNCT
fumecheng-2369	108	19	(	(	PUNCT
fumecheng-2369	108	20	15	15	NUM
fumecheng-2369	108	21	)	)	PUNCT
fumecheng-2369	108	22	,	,	PUNCT
fumecheng-2369	108	23	is	be	AUX
fumecheng-2369	108	24	reduced	reduce	VERB
fumecheng-2369	108	25	to	to	ADP
fumecheng-2369	108	26	eq	eq	PROPN
fumecheng-2369	108	27	.	.	PUNCT
fumecheng-2369	109	1	(	(	PUNCT
fumecheng-2369	109	2	1	1	NUM
fumecheng-2369	109	3	)	)	PUNCT
fumecheng-2369	109	4	,	,	PUNCT
fumecheng-2369	109	5	which	which	PRON
fumecheng-2369	109	6	thus	thus	ADV
fumecheng-2369	109	7	appears	appear	VERB
fumecheng-2369	109	8	to	to	PART
fumecheng-2369	109	9	be	be	AUX
fumecheng-2369	109	10	valid	valid	ADJ
fumecheng-2369	109	11	independently	independently	ADV
fumecheng-2369	109	12	of	of	ADP
fumecheng-2369	109	13	the	the	DET
fumecheng-2369	109	14	viscoelastic	viscoelastic	ADJ
fumecheng-2369	109	15	properties	property	NOUN
fumecheng-2369	109	16	of	of	ADP
fumecheng-2369	109	17	the	the	DET
fumecheng-2369	109	18	medium	medium	NOUN
fumecheng-2369	109	19	.	.	PUNCT
fumecheng-2369	110	1	according	accord	VERB
fumecheng-2369	110	2	to	to	ADP
fumecheng-2369	110	3	the	the	DET
fumecheng-2369	110	4	method	method	NOUN
fumecheng-2369	110	5	of	of	ADP
fumecheng-2369	110	6	dimensionality	dimensionality	NOUN
fumecheng-2369	110	7	reduction	reduction	NOUN
fumecheng-2369	110	8	(	(	PUNCT
fumecheng-2369	110	9	mdr	mdr	NOUN
fumecheng-2369	110	10	)	)	PUNCT
fumecheng-2369	111	1	[	[	X
fumecheng-2369	111	2	8	8	NUM
fumecheng-2369	111	3	]	]	PUNCT
fumecheng-2369	111	4	,	,	PUNCT
fumecheng-2369	111	5	any	any	DET
fumecheng-2369	111	6	rotationally	rotationally	ADV
fumecheng-2369	111	7	symmetric	symmetric	ADJ
fumecheng-2369	111	8	contact	contact	NOUN
fumecheng-2369	111	9	can	can	AUX
fumecheng-2369	111	10	be	be	AUX
fumecheng-2369	111	11	equivalently	equivalently	ADV
fumecheng-2369	111	12	represented	represent	VERB
fumecheng-2369	111	13	by	by	ADP
fumecheng-2369	111	14	a	a	DET
fumecheng-2369	111	15	model	model	NOUN
fumecheng-2369	111	16	consisting	consist	VERB
fumecheng-2369	111	17	of	of	ADP
fumecheng-2369	111	18	a	a	DET
fumecheng-2369	111	19	series	series	NOUN
fumecheng-2369	111	20	of	of	ADP
fumecheng-2369	111	21	independent	independent	ADJ
fumecheng-2369	111	22	springs	spring	NOUN
fumecheng-2369	111	23	(	(	PUNCT
fumecheng-2369	111	24	note	note	VERB
fumecheng-2369	111	25	that	that	SCONJ
fumecheng-2369	111	26	an	an	DET
fumecheng-2369	111	27	equivalent	equivalent	ADJ
fumecheng-2369	111	28	one	one	NUM
fumecheng-2369	111	29	-	-	PUNCT
fumecheng-2369	111	30	dimensional	dimensional	ADJ
fumecheng-2369	111	31	model	model	NOUN
fumecheng-2369	111	32	can	can	AUX
fumecheng-2369	111	33	in	in	ADP
fumecheng-2369	111	34	fact	fact	NOUN
fumecheng-2369	111	35	be	be	AUX
fumecheng-2369	111	36	constructed	construct	VERB
fumecheng-2369	111	37	for	for	ADP
fumecheng-2369	111	38	almost	almost	ADV
fumecheng-2369	111	39	arbitrary	arbitrary	ADJ
fumecheng-2369	111	40	,	,	PUNCT
fumecheng-2369	111	41	e.g.	e.g.	ADV
fumecheng-2369	111	42	rough	rough	ADJ
fumecheng-2369	111	43	,	,	PUNCT
fumecheng-2369	111	44	contacts	contact	NOUN
fumecheng-2369	111	45	,	,	PUNCT
fumecheng-2369	111	46	although	although	SCONJ
fumecheng-2369	111	47	there	there	PRON
fumecheng-2369	111	48	may	may	AUX
fumecheng-2369	111	49	be	be	AUX
fumecheng-2369	111	50	no	no	DET
fumecheng-2369	111	51	closed	closed	ADJ
fumecheng-2369	111	52	-	-	PUNCT
fumecheng-2369	111	53	form	form	NOUN
fumecheng-2369	111	54	mapping	mapping	NOUN
fumecheng-2369	111	55	rule	rule	NOUN
fumecheng-2369	111	56	in	in	ADP
fumecheng-2369	111	57	the	the	DET
fumecheng-2369	111	58	general	general	ADJ
fumecheng-2369	111	59	case	case	NOUN
fumecheng-2369	111	60	)	)	PUNCT
fumecheng-2369	111	61	.	.	PUNCT
fumecheng-2369	112	1	as	as	SCONJ
fumecheng-2369	112	2	has	have	AUX
fumecheng-2369	112	3	been	be	AUX
fumecheng-2369	112	4	argued	argue	VERB
fumecheng-2369	112	5	in	in	ADP
fumecheng-2369	112	6	[	[	X
fumecheng-2369	112	7	6	6	NUM
fumecheng-2369	112	8	]	]	PUNCT
fumecheng-2369	112	9	,	,	PUNCT
fumecheng-2369	112	10	the	the	DET
fumecheng-2369	112	11	existence	existence	NOUN
fumecheng-2369	112	12	an	an	DET
fumecheng-2369	112	13	equivalent	equivalent	ADJ
fumecheng-2369	112	14	model	model	NOUN
fumecheng-2369	112	15	with	with	ADP
fumecheng-2369	112	16	uncoupled	uncoupled	ADJ
fumecheng-2369	112	17	spring	spring	NOUN
fumecheng-2369	112	18	elements	element	NOUN
fumecheng-2369	112	19	,	,	PUNCT
fumecheng-2369	112	20	together	together	ADV
fumecheng-2369	112	21	with	with	ADP
fumecheng-2369	112	22	the	the	DET
fumecheng-2369	112	23	indentation	indentation	NOUN
fumecheng-2369	112	24	-	-	PUNCT
fumecheng-2369	112	25	independence	independence	NOUN
fumecheng-2369	112	26	of	of	ADP
fumecheng-2369	112	27	eq	eq	PROPN
fumecheng-2369	112	28	.	.	PUNCT
fumecheng-2369	113	1	(	(	PUNCT
fumecheng-2369	113	2	15	15	NUM
fumecheng-2369	113	3	)	)	PUNCT
fumecheng-2369	113	4	,	,	PUNCT
fumecheng-2369	113	5	implies	imply	VERB
fumecheng-2369	113	6	that	that	SCONJ
fumecheng-2369	113	7	the	the	DET
fumecheng-2369	113	8	obtained	obtain	VERB
fumecheng-2369	113	9	result	result	NOUN
fumecheng-2369	113	10	in	in	ADP
fumecheng-2369	113	11	eq	eq	PROPN
fumecheng-2369	113	12	.	.	PUNCT
fumecheng-2369	114	1	(	(	PUNCT
fumecheng-2369	114	2	15	15	NUM
fumecheng-2369	114	3	)	)	PUNCT
fumecheng-2369	114	4	is	be	AUX
fumecheng-2369	114	5	valid	valid	ADJ
fumecheng-2369	114	6	not	not	PART
fumecheng-2369	114	7	only	only	ADV
fumecheng-2369	114	8	for	for	ADP
fumecheng-2369	114	9	the	the	DET
fumecheng-2369	114	10	simple	simple	ADJ
fumecheng-2369	114	11	considered	consider	VERB
fumecheng-2369	114	12	model	model	NOUN
fumecheng-2369	114	13	with	with	ADP
fumecheng-2369	114	14	a	a	DET
fumecheng-2369	114	15	single	single	ADJ
fumecheng-2369	114	16	spring	spring	NOUN
fumecheng-2369	114	17	-	-	PUNCT
fumecheng-2369	114	18	damper	damper	NOUN
fumecheng-2369	114	19	combination	combination	NOUN
fumecheng-2369	114	20	,	,	PUNCT
fumecheng-2369	114	21	but	but	CCONJ
fumecheng-2369	114	22	also	also	ADV
fumecheng-2369	114	23	for	for	ADP
fumecheng-2369	114	24	quite	quite	ADV
fumecheng-2369	114	25	general	general	ADJ
fumecheng-2369	114	26	contacts	contact	NOUN
fumecheng-2369	114	27	(	(	PUNCT
fumecheng-2369	114	28	so	so	ADV
fumecheng-2369	114	29	long	long	ADV
fumecheng-2369	114	30	as	as	SCONJ
fumecheng-2369	114	31	the	the	DET
fumecheng-2369	114	32	amplitude	amplitude	NOUN
fumecheng-2369	114	33	of	of	ADP
fumecheng-2369	114	34	oscillation	oscillation	NOUN
fumecheng-2369	114	35	remains	remain	VERB
fumecheng-2369	114	36	small	small	ADJ
fumecheng-2369	114	37	)	)	PUNCT
fumecheng-2369	114	38	.	.	PUNCT
fumecheng-2369	115	1	3	3	X
fumecheng-2369	115	2	.	.	X
fumecheng-2369	115	3	conclusion	conclusion	NOUN
fumecheng-2369	115	4	while	while	SCONJ
fumecheng-2369	115	5	the	the	DET
fumecheng-2369	115	6	details	detail	NOUN
fumecheng-2369	115	7	of	of	ADP
fumecheng-2369	115	8	the	the	DET
fumecheng-2369	115	9	influence	influence	NOUN
fumecheng-2369	115	10	of	of	ADP
fumecheng-2369	115	11	oscillation	oscillation	NOUN
fumecheng-2369	115	12	on	on	ADP
fumecheng-2369	115	13	friction	friction	NOUN
fumecheng-2369	115	14	may	may	AUX
fumecheng-2369	115	15	be	be	AUX
fumecheng-2369	115	16	very	very	ADV
fumecheng-2369	115	17	complicated	complicated	ADJ
fumecheng-2369	115	18	at	at	ADP
fumecheng-2369	115	19	intermediate	intermediate	ADJ
fumecheng-2369	115	20	sliding	slide	VERB
fumecheng-2369	115	21	velocities	velocity	NOUN
fumecheng-2369	115	22	[	[	X
fumecheng-2369	115	23	7	7	NUM
fumecheng-2369	115	24	]	]	PUNCT
fumecheng-2369	115	25	,	,	PUNCT
fumecheng-2369	115	26	there	there	PRON
fumecheng-2369	115	27	are	be	VERB
fumecheng-2369	115	28	still	still	ADV
fumecheng-2369	115	29	two	two	NUM
fumecheng-2369	115	30	simple	simple	ADJ
fumecheng-2369	115	31	and	and	CCONJ
fumecheng-2369	115	32	nearly	nearly	ADV
fumecheng-2369	115	33	universal	universal	ADJ
fumecheng-2369	115	34	(	(	PUNCT
fumecheng-2369	115	35	except	except	SCONJ
fumecheng-2369	115	36	in	in	ADP
fumecheng-2369	115	37	resonant	resonant	ADJ
fumecheng-2369	115	38	cases	case	NOUN
fumecheng-2369	115	39	)	)	PUNCT
fumecheng-2369	115	40	characteristic	characteristic	ADJ
fumecheng-2369	115	41	points	point	NOUN
fumecheng-2369	115	42	:	:	PUNCT
fumecheng-2369	115	43	first	first	ADV
fumecheng-2369	115	44	,	,	PUNCT
fumecheng-2369	115	45	the	the	DET
fumecheng-2369	115	46	velocity	velocity	NOUN
fumecheng-2369	115	47	-	-	PUNCT
fumecheng-2369	115	48	dependences	dependence	NOUN
fumecheng-2369	115	49	all	all	PRON
fumecheng-2369	115	50	start	start	VERB
fumecheng-2369	115	51	from	from	ADP
fumecheng-2369	115	52	the	the	DET
fumecheng-2369	115	53	static	static	ADJ
fumecheng-2369	115	54	value	value	NOUN
fumecheng-2369	115	55	at	at	ADP
fumecheng-2369	115	56	vanishing	vanish	VERB
fumecheng-2369	115	57	velocity	velocity	NOUN
fumecheng-2369	115	58	.	.	PUNCT
fumecheng-2369	116	1	second	second	ADV
fumecheng-2369	116	2	,	,	PUNCT
fumecheng-2369	116	3	the	the	DET
fumecheng-2369	116	4	coefficient	coefficient	NOUN
fumecheng-2369	116	5	of	of	ADP
fumecheng-2369	116	6	friction	friction	NOUN
fumecheng-2369	116	7	increases	increase	VERB
fumecheng-2369	116	8	monotonically	monotonically	ADV
fumecheng-2369	116	9	(	(	PUNCT
fumecheng-2369	116	10	again	again	ADV
fumecheng-2369	116	11	,	,	PUNCT
fumecheng-2369	116	12	barring	bar	VERB
fumecheng-2369	116	13	exceptional	exceptional	ADJ
fumecheng-2369	116	14	system	system	NOUN
fumecheng-2369	116	15	-	-	PUNCT
fumecheng-2369	116	16	dynamical	dynamical	ADJ
fumecheng-2369	116	17	circumstances	circumstance	NOUN
fumecheng-2369	116	18	)	)	PUNCT
fumecheng-2369	116	19	until	until	SCONJ
fumecheng-2369	116	20	it	it	PRON
fumecheng-2369	116	21	reaches	reach	VERB
fumecheng-2369	116	22	the	the	DET
fumecheng-2369	116	23	microscopic	microscopic	ADJ
fumecheng-2369	116	24	value	value	NOUN
fumecheng-2369	116	25	at	at	ADP
fumecheng-2369	116	26	some	some	DET
fumecheng-2369	116	27	critical	critical	ADJ
fumecheng-2369	116	28	velocity	velocity	NOUN
fumecheng-2369	116	29	.	.	PUNCT
fumecheng-2369	117	1	these	these	DET
fumecheng-2369	117	2	two	two	NUM
fumecheng-2369	117	3	points	point	NOUN
fumecheng-2369	117	4	,	,	PUNCT
fumecheng-2369	117	5	the	the	DET
fumecheng-2369	117	6	static	static	ADJ
fumecheng-2369	117	7	coefficient	coefficient	NOUN
fumecheng-2369	117	8	of	of	ADP
fumecheng-2369	117	9	friction	friction	NOUN
fumecheng-2369	117	10	,	,	PUNCT
fumecheng-2369	117	11	and	and	CCONJ
fumecheng-2369	117	12	the	the	DET
fumecheng-2369	117	13	critical	critical	ADJ
fumecheng-2369	117	14	velocity	velocity	NOUN
fumecheng-2369	117	15	of	of	ADP
fumecheng-2369	117	16	controllability	controllability	NOUN
fumecheng-2369	117	17	of	of	ADP
fumecheng-2369	117	18	friction	friction	NOUN
fumecheng-2369	117	19	,	,	PUNCT
fumecheng-2369	117	20	are	be	AUX
fumecheng-2369	117	21	the	the	DET
fumecheng-2369	117	22	most	most	ADV
fumecheng-2369	117	23	important	important	ADJ
fumecheng-2369	117	24	characteristics	characteristic	NOUN
fumecheng-2369	117	25	of	of	ADP
fumecheng-2369	117	26	any	any	DET
fumecheng-2369	117	27	oscillating	oscillate	VERB
fumecheng-2369	117	28	frictional	frictional	ADJ
fumecheng-2369	117	29	system	system	NOUN
fumecheng-2369	117	30	.	.	PUNCT
fumecheng-2369	118	1	it	it	PRON
fumecheng-2369	118	2	so	so	ADV
fumecheng-2369	118	3	happens	happen	VERB
fumecheng-2369	118	4	that	that	SCONJ
fumecheng-2369	118	5	both	both	PRON
fumecheng-2369	118	6	of	of	ADP
fumecheng-2369	118	7	these	these	DET
fumecheng-2369	118	8	points	point	NOUN
fumecheng-2369	118	9	can	can	AUX
fumecheng-2369	118	10	be	be	AUX
fumecheng-2369	118	11	determined	determine	VERB
fumecheng-2369	118	12	analytically	analytically	ADV
fumecheng-2369	118	13	for	for	ADP
fumecheng-2369	118	14	very	very	ADV
fumecheng-2369	118	15	general	general	ADJ
fumecheng-2369	118	16	classes	class	NOUN
fumecheng-2369	118	17	of	of	ADP
fumecheng-2369	118	18	contacts	contact	NOUN
fumecheng-2369	118	19	with	with	ADP
fumecheng-2369	118	20	and	and	CCONJ
fumecheng-2369	118	21	without	without	ADP
fumecheng-2369	118	22	system	system	NOUN
fumecheng-2369	118	23	dynamics	dynamic	NOUN
fumecheng-2369	118	24	.	.	PUNCT
fumecheng-2369	119	1	in	in	ADP
fumecheng-2369	119	2	the	the	DET
fumecheng-2369	119	3	present	present	ADJ
fumecheng-2369	119	4	paper	paper	NOUN
fumecheng-2369	119	5	,	,	PUNCT
fumecheng-2369	119	6	the	the	DET
fumecheng-2369	119	7	critical	critical	ADJ
fumecheng-2369	119	8	velocity	velocity	NOUN
fumecheng-2369	119	9	of	of	ADP
fumecheng-2369	119	10	controllability	controllability	NOUN
fumecheng-2369	119	11	was	be	AUX
fumecheng-2369	119	12	determined	determine	VERB
fumecheng-2369	119	13	for	for	ADP
fumecheng-2369	119	14	the	the	DET
fumecheng-2369	119	15	simplest	simple	ADJ
fumecheng-2369	119	16	possible	possible	ADJ
fumecheng-2369	119	17	viscoelastic	viscoelastic	ADJ
fumecheng-2369	119	18	rheology	rheology	NOUN
fumecheng-2369	119	19	(	(	PUNCT
fumecheng-2369	119	20	kelvin	kelvin	PROPN
fumecheng-2369	119	21	body	body	PROPN
fumecheng-2369	119	22	)	)	PUNCT
fumecheng-2369	119	23	and	and	CCONJ
fumecheng-2369	119	24	the	the	DET
fumecheng-2369	119	25	simplest	simple	ADJ
fumecheng-2369	119	26	possible	possible	ADJ
fumecheng-2369	119	27	contact	contact	NOUN
fumecheng-2369	119	28	geometry	geometry	NOUN
fumecheng-2369	119	29	(	(	PUNCT
fumecheng-2369	119	30	contact	contact	NOUN
fumecheng-2369	119	31	with	with	ADP
fumecheng-2369	119	32	constant	constant	ADJ
fumecheng-2369	119	33	contact	contact	NOUN
fumecheng-2369	119	34	stiffness	stiffness	NOUN
fumecheng-2369	119	35	,	,	PUNCT
fumecheng-2369	119	36	e.g.	e.g.	ADV
fumecheng-2369	119	37	cylindrical	cylindrical	ADJ
fumecheng-2369	119	38	punch	punch	NOUN
fumecheng-2369	119	39	)	)	PUNCT
fumecheng-2369	119	40	.	.	PUNCT
fumecheng-2369	120	1	eq	eq	X
fumecheng-2369	120	2	.	.	PUNCT
fumecheng-2369	121	1	(	(	PUNCT
fumecheng-2369	121	2	15	15	NUM
fumecheng-2369	121	3	)	)	PUNCT
fumecheng-2369	121	4	provides	provide	VERB
fumecheng-2369	121	5	critical	critical	ADJ
fumecheng-2369	121	6	velocity	velocity	NOUN
fumecheng-2369	121	7	of	of	ADP
fumecheng-2369	121	8	controllability	controllability	NOUN
fumecheng-2369	121	9	of	of	ADP
fumecheng-2369	121	10	sliding	slide	VERB
fumecheng-2369	121	11	friction	friction	NOUN
fumecheng-2369	121	12	by	by	ADP
fumecheng-2369	121	13	normal	normal	ADJ
fumecheng-2369	121	14	oscillations	oscillation	NOUN
fumecheng-2369	121	15	in	in	ADP
fumecheng-2369	121	16	viscoelastic	viscoelastic	ADJ
fumecheng-2369	121	17	contacts	contact	NOUN
fumecheng-2369	121	18	341	341	NUM
fumecheng-2369	121	19	an	an	DET
fumecheng-2369	121	20	explicit	explicit	ADJ
fumecheng-2369	121	21	analytical	analytical	ADJ
fumecheng-2369	121	22	solution	solution	NOUN
fumecheng-2369	121	23	.	.	PUNCT
fumecheng-2369	122	1	even	even	ADV
fumecheng-2369	122	2	under	under	ADP
fumecheng-2369	122	3	these	these	DET
fumecheng-2369	122	4	simple	simple	ADJ
fumecheng-2369	122	5	assumptions	assumption	NOUN
fumecheng-2369	122	6	,	,	PUNCT
fumecheng-2369	122	7	the	the	DET
fumecheng-2369	122	8	critical	critical	ADJ
fumecheng-2369	122	9	velocity	velocity	NOUN
fumecheng-2369	122	10	depends	depend	VERB
fumecheng-2369	122	11	on	on	ADP
fumecheng-2369	122	12	almost	almost	ADV
fumecheng-2369	122	13	all	all	PRON
fumecheng-2369	122	14	system	system	NOUN
fumecheng-2369	122	15	and	and	CCONJ
fumecheng-2369	122	16	loading	loading	NOUN
fumecheng-2369	122	17	parameters	parameter	NOUN
fumecheng-2369	122	18	:	:	PUNCT
fumecheng-2369	122	19	the	the	DET
fumecheng-2369	122	20	local	local	ADJ
fumecheng-2369	122	21	coefficient	coefficient	NOUN
fumecheng-2369	122	22	of	of	ADP
fumecheng-2369	122	23	friction	friction	NOUN
fumecheng-2369	122	24	0	0	PROPN
fumecheng-2369	122	25	,	,	PUNCT
fumecheng-2369	122	26	mass	mass	NOUN
fumecheng-2369	122	27	m	m	NOUN
fumecheng-2369	122	28	of	of	ADP
fumecheng-2369	122	29	the	the	DET
fumecheng-2369	122	30	system	system	NOUN
fumecheng-2369	122	31	,	,	PUNCT
fumecheng-2369	122	32	the	the	DET
fumecheng-2369	122	33	stiffness	stiffness	NOUN
fumecheng-2369	122	34	of	of	ADP
fumecheng-2369	122	35	the	the	DET
fumecheng-2369	122	36	contact	contact	NOUN
fumecheng-2369	122	37	and	and	CCONJ
fumecheng-2369	122	38	of	of	ADP
fumecheng-2369	122	39	the	the	DET
fumecheng-2369	122	40	system	system	NOUN
fumecheng-2369	122	41	,	,	PUNCT
fumecheng-2369	122	42	the	the	DET
fumecheng-2369	122	43	frequency	frequency	NOUN
fumecheng-2369	122	44	of	of	ADP
fumecheng-2369	122	45	oscillations	oscillation	NOUN
fumecheng-2369	122	46	,	,	PUNCT
fumecheng-2369	122	47	the	the	DET
fumecheng-2369	122	48	damping	damp	VERB
fumecheng-2369	122	49	coefficient	coefficient	NOUN
fumecheng-2369	122	50	of	of	ADP
fumecheng-2369	122	51	the	the	DET
fumecheng-2369	122	52	contact	contact	NOUN
fumecheng-2369	122	53	,	,	PUNCT
fumecheng-2369	122	54	and	and	CCONJ
fumecheng-2369	122	55	on	on	ADP
fumecheng-2369	122	56	the	the	DET
fumecheng-2369	122	57	amplitude	amplitude	NOUN
fumecheng-2369	122	58	of	of	ADP
fumecheng-2369	122	59	oscillations	oscillation	NOUN
fumecheng-2369	122	60	.	.	PUNCT
fumecheng-2369	123	1	however	however	ADV
fumecheng-2369	123	2	,	,	PUNCT
fumecheng-2369	123	3	it	it	PRON
fumecheng-2369	123	4	does	do	AUX
fumecheng-2369	123	5	not	not	PART
fumecheng-2369	123	6	depend	depend	VERB
fumecheng-2369	123	7	on	on	ADP
fumecheng-2369	123	8	absolute	absolute	ADJ
fumecheng-2369	123	9	indentation	indentation	NOUN
fumecheng-2369	123	10	,	,	PUNCT
fumecheng-2369	123	11	which	which	PRON
fumecheng-2369	123	12	permits	permit	VERB
fumecheng-2369	123	13	easy	easy	ADJ
fumecheng-2369	123	14	generalization	generalization	NOUN
fumecheng-2369	123	15	to	to	ADP
fumecheng-2369	123	16	more	more	ADV
fumecheng-2369	123	17	realistic	realistic	ADJ
fumecheng-2369	123	18	contact	contact	NOUN
fumecheng-2369	123	19	geometry	geometry	NOUN
fumecheng-2369	123	20	.	.	PUNCT
fumecheng-2369	124	1	further	far	ADV
fumecheng-2369	124	2	,	,	PUNCT
fumecheng-2369	124	3	in	in	ADP
fumecheng-2369	124	4	the	the	DET
fumecheng-2369	124	5	case	case	NOUN
fumecheng-2369	124	6	of	of	ADP
fumecheng-2369	124	7	displacement	displacement	NOUN
fumecheng-2369	124	8	-	-	PUNCT
fumecheng-2369	124	9	controlled	control	VERB
fumecheng-2369	124	10	horizontal	horizontal	ADJ
fumecheng-2369	124	11	movement	movement	NOUN
fumecheng-2369	124	12	(	(	PUNCT
fumecheng-2369	124	13	corresponding	correspond	VERB
fumecheng-2369	124	14	to	to	ADP
fumecheng-2369	124	15	an	an	DET
fumecheng-2369	124	16	infinitely	infinitely	ADV
fumecheng-2369	124	17	stiff	stiff	ADJ
fumecheng-2369	124	18	surrounding	surround	VERB
fumecheng-2369	124	19	system	system	NOUN
fumecheng-2369	124	20	,	,	PUNCT
fumecheng-2369	124	21	which	which	PRON
fumecheng-2369	124	22	eliminates	eliminate	VERB
fumecheng-2369	124	23	system	system	NOUN
fumecheng-2369	124	24	dynamics	dynamic	NOUN
fumecheng-2369	124	25	in	in	ADP
fumecheng-2369	124	26	the	the	DET
fumecheng-2369	124	27	contact	contact	NOUN
fumecheng-2369	124	28	)	)	PUNCT
fumecheng-2369	124	29	it	it	PRON
fumecheng-2369	124	30	was	be	AUX
fumecheng-2369	124	31	found	find	VERB
fumecheng-2369	124	32	that	that	SCONJ
fumecheng-2369	124	33	the	the	DET
fumecheng-2369	124	34	critical	critical	ADJ
fumecheng-2369	124	35	velocity	velocity	NOUN
fumecheng-2369	124	36	is	be	AUX
fumecheng-2369	124	37	given	give	VERB
fumecheng-2369	124	38	by	by	ADP
fumecheng-2369	124	39	eq	eq	PROPN
fumecheng-2369	124	40	.	.	PUNCT
fumecheng-2369	125	1	(	(	PUNCT
fumecheng-2369	125	2	1	1	NUM
fumecheng-2369	125	3	)	)	PUNCT
fumecheng-2369	125	4	,	,	PUNCT
fumecheng-2369	125	5	without	without	ADP
fumecheng-2369	125	6	dependence	dependence	NOUN
fumecheng-2369	125	7	on	on	ADP
fumecheng-2369	125	8	the	the	DET
fumecheng-2369	125	9	rheological	rheological	ADJ
fumecheng-2369	125	10	properties	property	NOUN
fumecheng-2369	125	11	of	of	ADP
fumecheng-2369	125	12	the	the	DET
fumecheng-2369	125	13	contact	contact	NOUN
fumecheng-2369	125	14	:	:	PUNCT
fumecheng-2369	125	15	only	only	ADV
fumecheng-2369	125	16	the	the	DET
fumecheng-2369	125	17	ratio	ratio	NOUN
fumecheng-2369	125	18	of	of	ADP
fumecheng-2369	125	19	the	the	DET
fumecheng-2369	125	20	contact	contact	NOUN
fumecheng-2369	125	21	stiffness	stiffness	NOUN
fumecheng-2369	125	22	(	(	PUNCT
fumecheng-2369	125	23	mindlin	mindlin	NOUN
fumecheng-2369	125	24	ratio	ratio	NOUN
fumecheng-2369	125	25	)	)	PUNCT
fumecheng-2369	125	26	appears	appear	VERB
fumecheng-2369	125	27	in	in	ADP
fumecheng-2369	125	28	the	the	DET
fumecheng-2369	125	29	expression	expression	NOUN
fumecheng-2369	125	30	for	for	ADP
fumecheng-2369	125	31	this	this	DET
fumecheng-2369	125	32	critical	critical	ADJ
fumecheng-2369	125	33	velocity	velocity	NOUN
fumecheng-2369	125	34	.	.	PUNCT
fumecheng-2369	126	1	in	in	ADP
fumecheng-2369	126	2	the	the	DET
fumecheng-2369	126	3	future	future	NOUN
fumecheng-2369	126	4	,	,	PUNCT
fumecheng-2369	126	5	the	the	DET
fumecheng-2369	126	6	critical	critical	ADJ
fumecheng-2369	126	7	velocity	velocity	NOUN
fumecheng-2369	126	8	could	could	AUX
fumecheng-2369	126	9	also	also	ADV
fumecheng-2369	126	10	be	be	AUX
fumecheng-2369	126	11	considered	consider	VERB
fumecheng-2369	126	12	for	for	ADP
fumecheng-2369	126	13	materials	material	NOUN
fumecheng-2369	126	14	with	with	ADP
fumecheng-2369	126	15	more	more	ADJ
fumecheng-2369	126	16	general	general	ADJ
fumecheng-2369	126	17	rheology	rheology	NOUN
fumecheng-2369	126	18	.	.	PUNCT
fumecheng-2369	127	1	the	the	DET
fumecheng-2369	127	2	method	method	NOUN
fumecheng-2369	127	3	of	of	ADP
fumecheng-2369	127	4	dimensionality	dimensionality	NOUN
fumecheng-2369	127	5	reduction	reduction	NOUN
fumecheng-2369	127	6	[	[	X
fumecheng-2369	127	7	8	8	NUM
fumecheng-2369	127	8	]	]	PUNCT
fumecheng-2369	127	9	provides	provide	VERB
fumecheng-2369	127	10	a	a	DET
fumecheng-2369	127	11	natural	natural	ADJ
fumecheng-2369	127	12	theoretical	theoretical	ADJ
fumecheng-2369	127	13	framework	framework	NOUN
fumecheng-2369	127	14	for	for	ADP
fumecheng-2369	127	15	this	this	PRON
fumecheng-2369	127	16	and	and	CCONJ
fumecheng-2369	127	17	for	for	ADP
fumecheng-2369	127	18	further	further	ADJ
fumecheng-2369	127	19	generalizations	generalization	NOUN
fumecheng-2369	127	20	to	to	ADP
fumecheng-2369	127	21	arbitrary	arbitrary	ADJ
fumecheng-2369	127	22	contact	contact	NOUN
fumecheng-2369	127	23	geometries	geometry	NOUN
fumecheng-2369	127	24	and	and	CCONJ
fumecheng-2369	127	25	loading	loading	NOUN
fumecheng-2369	127	26	histories	history	NOUN
fumecheng-2369	127	27	.	.	PUNCT
fumecheng-2369	128	1	acknowledgements	acknowledgement	NOUN
fumecheng-2369	128	2	:	:	PUNCT
fumecheng-2369	128	3	the	the	DET
fumecheng-2369	128	4	author	author	NOUN
fumecheng-2369	128	5	would	would	AUX
fumecheng-2369	128	6	like	like	VERB
fumecheng-2369	128	7	to	to	PART
fumecheng-2369	128	8	thank	thank	VERB
fumecheng-2369	128	9	v.	v.	ADP
fumecheng-2369	128	10	l.	l.	PROPN
fumecheng-2369	128	11	popov	popov	PROPN
fumecheng-2369	128	12	and	and	CCONJ
fumecheng-2369	128	13	a.	a.	PROPN
fumecheng-2369	128	14	e.	e.	PROPN
fumecheng-2369	128	15	filippov	filippov	PROPN
fumecheng-2369	128	16	for	for	ADP
fumecheng-2369	128	17	inspiring	inspire	VERB
fumecheng-2369	128	18	discussions	discussion	NOUN
fumecheng-2369	128	19	concerning	concern	VERB
fumecheng-2369	128	20	the	the	DET
fumecheng-2369	128	21	present	present	ADJ
fumecheng-2369	128	22	work	work	NOUN
fumecheng-2369	128	23	.	.	PUNCT
fumecheng-2369	129	1	references	reference	NOUN
fumecheng-2369	129	2	1	1	NUM
fumecheng-2369	129	3	.	.	PUNCT
fumecheng-2369	130	1	zaloj	zaloj	NOUN
fumecheng-2369	130	2	,	,	PUNCT
fumecheng-2369	130	3	v	v	NOUN
fumecheng-2369	130	4	,	,	PUNCT
fumecheng-2369	130	5	urbakh	urbakh	NOUN
fumecheng-2369	130	6	,	,	PUNCT
fumecheng-2369	130	7	m	m	PROPN
fumecheng-2369	130	8	,	,	PUNCT
fumecheng-2369	130	9	klafter	klafter	PROPN
fumecheng-2369	130	10	,	,	PUNCT
fumecheng-2369	130	11	j.	j.	PROPN
fumecheng-2369	130	12	,	,	PUNCT
fumecheng-2369	130	13	1999	1999	NUM
fumecheng-2369	130	14	,	,	PUNCT
fumecheng-2369	130	15	modifying	modify	VERB
fumecheng-2369	130	16	friction	friction	NOUN
fumecheng-2369	130	17	by	by	ADP
fumecheng-2369	130	18	manipulating	manipulate	VERB
fumecheng-2369	130	19	normal	normal	ADJ
fumecheng-2369	130	20	response	response	NOUN
fumecheng-2369	130	21	to	to	ADP
fumecheng-2369	130	22	lateral	lateral	ADJ
fumecheng-2369	130	23	motion	motion	NOUN
fumecheng-2369	130	24	.	.	PUNCT
fumecheng-2369	131	1	physical	physical	ADJ
fumecheng-2369	131	2	review	review	NOUN
fumecheng-2369	131	3	letters	letter	NOUN
fumecheng-2369	131	4	82(24	82(24	NUM
fumecheng-2369	131	5	)	)	PUNCT
fumecheng-2369	131	6	,	,	PUNCT
fumecheng-2369	131	7	pp	pp	ADP
fumecheng-2369	131	8	.	.	PUNCT
fumecheng-2369	131	9	4823	4823	NUM
fumecheng-2369	131	10	,	,	PUNCT
fumecheng-2369	131	11	1999	1999	NUM
fumecheng-2369	131	12	.	.	PUNCT
fumecheng-2369	132	1	2	2	X
fumecheng-2369	132	2	.	.	X
fumecheng-2369	132	3	popov	popov	PROPN
fumecheng-2369	132	4	,	,	PUNCT
fumecheng-2369	132	5	vl	vl	NOUN
fumecheng-2369	132	6	,	,	PUNCT
fumecheng-2369	132	7	starcevic	starcevic	ADJ
fumecheng-2369	132	8	,	,	PUNCT
fumecheng-2369	132	9	j	j	PROPN
fumecheng-2369	132	10	,	,	PUNCT
fumecheng-2369	132	11	filippov	filippov	PROPN
fumecheng-2369	132	12	,	,	PUNCT
fumecheng-2369	132	13	ae	ae	PROPN
fumecheng-2369	132	14	.	.	PROPN
fumecheng-2369	132	15	,	,	PUNCT
fumecheng-2369	132	16	2010	2010	NUM
fumecheng-2369	132	17	,	,	PUNCT
fumecheng-2369	132	18	influence	influence	NOUN
fumecheng-2369	132	19	of	of	ADP
fumecheng-2369	132	20	ultrasonic	ultrasonic	ADJ
fumecheng-2369	132	21	in	in	ADP
fumecheng-2369	132	22	-	-	PUNCT
fumecheng-2369	132	23	plane	plane	NOUN
fumecheng-2369	132	24	oscillations	oscillation	NOUN
fumecheng-2369	132	25	on	on	ADP
fumecheng-2369	132	26	static	static	ADJ
fumecheng-2369	132	27	and	and	CCONJ
fumecheng-2369	132	28	sliding	slide	VERB
fumecheng-2369	132	29	friction	friction	NOUN
fumecheng-2369	132	30	and	and	CCONJ
fumecheng-2369	132	31	intrinsic	intrinsic	ADJ
fumecheng-2369	132	32	length	length	NOUN
fumecheng-2369	132	33	scale	scale	NOUN
fumecheng-2369	132	34	of	of	ADP
fumecheng-2369	132	35	dry	dry	ADJ
fumecheng-2369	132	36	friction	friction	NOUN
fumecheng-2369	132	37	processes	process	NOUN
fumecheng-2369	132	38	.	.	PUNCT
fumecheng-2369	133	1	tribology	tribology	NOUN
fumecheng-2369	133	2	letters	letter	NOUN
fumecheng-2369	133	3	,	,	PUNCT
fumecheng-2369	133	4	39	39	NUM
fumecheng-2369	133	5	(	(	PUNCT
fumecheng-2369	133	6	1	1	NUM
fumecheng-2369	133	7	)	)	PUNCT
fumecheng-2369	133	8	,	,	PUNCT
fumecheng-2369	133	9	25	25	NUM
fumecheng-2369	133	10	-	-	SYM
fumecheng-2369	133	11	30	30	NUM
fumecheng-2369	133	12	,	,	PUNCT
fumecheng-2369	133	13	2010	2010	NUM
fumecheng-2369	133	14	.	.	PUNCT
fumecheng-2369	134	1	3	3	X
fumecheng-2369	134	2	.	.	X
fumecheng-2369	134	3	teidelt	teidelt	ADJ
fumecheng-2369	134	4	,	,	PUNCT
fumecheng-2369	134	5	e	e	NOUN
fumecheng-2369	134	6	,	,	PUNCT
fumecheng-2369	134	7	2015	2015	NUM
fumecheng-2369	134	8	,	,	PUNCT
fumecheng-2369	134	9	oscillating	oscillate	VERB
fumecheng-2369	134	10	contacts	contact	NOUN
fumecheng-2369	134	11	:	:	PUNCT
fumecheng-2369	134	12	friction	friction	NOUN
fumecheng-2369	134	13	induced	induce	VERB
fumecheng-2369	134	14	motion	motion	NOUN
fumecheng-2369	134	15	and	and	CCONJ
fumecheng-2369	134	16	control	control	NOUN
fumecheng-2369	134	17	of	of	ADP
fumecheng-2369	134	18	friction	friction	NOUN
fumecheng-2369	134	19	,	,	PUNCT
fumecheng-2369	134	20	dissertation	dissertation	NOUN
fumecheng-2369	134	21	,	,	PUNCT
fumecheng-2369	134	22	tu	tu	PROPN
fumecheng-2369	134	23	berlin	berlin	PROPN
fumecheng-2369	134	24	,	,	PUNCT
fumecheng-2369	134	25	germany	germany	PROPN
fumecheng-2369	134	26	,	,	PUNCT
fumecheng-2369	134	27	151	151	NUM
fumecheng-2369	134	28	p.	p.	NOUN
fumecheng-2369	134	29	4	4	NUM
fumecheng-2369	134	30	.	.	PUNCT
fumecheng-2369	135	1	milahin	milahin	ADJ
fumecheng-2369	135	2	,	,	PUNCT
fumecheng-2369	135	3	n.	n.	NOUN
fumecheng-2369	135	4	,	,	PUNCT
fumecheng-2369	135	5	starcevic	starcevic	PROPN
fumecheng-2369	135	6	,	,	PUNCT
fumecheng-2369	135	7	j.	j.	PROPN
fumecheng-2369	135	8	,	,	PUNCT
fumecheng-2369	135	9	2014	2014	NUM
fumecheng-2369	135	10	,	,	PUNCT
fumecheng-2369	135	11	influence	influence	NOUN
fumecheng-2369	135	12	of	of	ADP
fumecheng-2369	135	13	the	the	DET
fumecheng-2369	135	14	normal	normal	ADJ
fumecheng-2369	135	15	force	force	NOUN
fumecheng-2369	135	16	and	and	CCONJ
fumecheng-2369	135	17	contact	contact	NOUN
fumecheng-2369	135	18	geometry	geometry	NOUN
fumecheng-2369	135	19	on	on	ADP
fumecheng-2369	135	20	the	the	DET
fumecheng-2369	135	21	static	static	ADJ
fumecheng-2369	135	22	force	force	NOUN
fumecheng-2369	135	23	of	of	ADP
fumecheng-2369	135	24	friction	friction	NOUN
fumecheng-2369	135	25	of	of	ADP
fumecheng-2369	135	26	an	an	DET
fumecheng-2369	135	27	oscillating	oscillate	VERB
fumecheng-2369	135	28	sample	sample	NOUN
fumecheng-2369	135	29	.	.	PUNCT
fumecheng-2369	136	1	physical	physical	ADJ
fumecheng-2369	136	2	mesomechanics	mesomechanic	NOUN
fumecheng-2369	136	3	,	,	PUNCT
fumecheng-2369	136	4	17(3	17(3	NUM
fumecheng-2369	136	5	)	)	PUNCT
fumecheng-2369	136	6	,	,	PUNCT
fumecheng-2369	136	7	pp	pp	ADJ
fumecheng-2369	136	8	.	.	PUNCT
fumecheng-2369	137	1	84	84	NUM
fumecheng-2369	137	2	-	-	SYM
fumecheng-2369	137	3	8	8	NUM
fumecheng-2369	137	4	.	.	NOUN
fumecheng-2369	138	1	5	5	NUM
fumecheng-2369	138	2	.	.	PUNCT
fumecheng-2369	138	3	milahin	milahin	ADJ
fumecheng-2369	138	4	,	,	PUNCT
fumecheng-2369	138	5	n.	n.	NOUN
fumecheng-2369	138	6	,	,	PUNCT
fumecheng-2369	138	7	li	li	PROPN
fumecheng-2369	138	8	,	,	PUNCT
fumecheng-2369	138	9	q.	q.	PROPN
fumecheng-2369	138	10	,	,	PUNCT
fumecheng-2369	138	11	2016	2016	NUM
fumecheng-2369	138	12	,	,	PUNCT
fumecheng-2369	138	13	friction	friction	NOUN
fumecheng-2369	138	14	and	and	CCONJ
fumecheng-2369	138	15	wear	wear	NOUN
fumecheng-2369	138	16	of	of	ADP
fumecheng-2369	138	17	a	a	DET
fumecheng-2369	138	18	spherical	spherical	ADJ
fumecheng-2369	138	19	indenter	indenter	NOUN
fumecheng-2369	138	20	under	under	ADP
fumecheng-2369	138	21	influence	influence	NOUN
fumecheng-2369	138	22	of	of	ADP
fumecheng-2369	138	23	out	out	ADV
fumecheng-2369	138	24	-	-	PUNCT
fumecheng-2369	138	25	of	of	ADP
fumecheng-2369	138	26	-	-	PUNCT
fumecheng-2369	138	27	plane	plane	NOUN
fumecheng-2369	138	28	ultrasonic	ultrasonic	ADJ
fumecheng-2369	138	29	oscillations	oscillation	NOUN
fumecheng-2369	138	30	.	.	PUNCT
fumecheng-2369	139	1	physical	physical	ADJ
fumecheng-2369	139	2	mesomechanics	mesomechanic	NOUN
fumecheng-2369	139	3	,	,	PUNCT
fumecheng-2369	139	4	19(2	19(2	NUM
fumecheng-2369	139	5	)	)	PUNCT
fumecheng-2369	139	6	,	,	PUNCT
fumecheng-2369	139	7	pp	pp	PROPN
fumecheng-2369	139	8	.	.	PUNCT
fumecheng-2369	140	1	149	149	NUM
fumecheng-2369	140	2	-	-	SYM
fumecheng-2369	140	3	153	153	NUM
fumecheng-2369	140	4	.	.	PUNCT
fumecheng-2369	141	1	6	6	NUM
fumecheng-2369	141	2	.	.	X
fumecheng-2369	142	1	popov	popov	PROPN
fumecheng-2369	142	2	,	,	PUNCT
fumecheng-2369	142	3	m.	m.	NOUN
fumecheng-2369	142	4	,	,	PUNCT
fumecheng-2369	142	5	popov	popov	PROPN
fumecheng-2369	142	6	,	,	PUNCT
fumecheng-2369	142	7	vl	vl	PROPN
fumecheng-2369	142	8	,	,	PUNCT
fumecheng-2369	142	9	popov	popov	PROPN
fumecheng-2369	142	10	,	,	PUNCT
fumecheng-2369	142	11	nv	nv	PROPN
fumecheng-2369	142	12	,	,	PUNCT
fumecheng-2369	142	13	2016	2016	NUM
fumecheng-2369	142	14	,	,	PUNCT
fumecheng-2369	142	15	reduction	reduction	NOUN
fumecheng-2369	142	16	of	of	ADP
fumecheng-2369	142	17	friction	friction	NOUN
fumecheng-2369	142	18	by	by	ADP
fumecheng-2369	142	19	normal	normal	ADJ
fumecheng-2369	142	20	oscillations	oscillation	NOUN
fumecheng-2369	142	21	.	.	PUNCT
fumecheng-2369	143	1	i.	i.	PROPN
fumecheng-2369	143	2	influence	influence	PROPN
fumecheng-2369	143	3	of	of	ADP
fumecheng-2369	143	4	contact	contact	NOUN
fumecheng-2369	143	5	stiffness	stiffness	NOUN
fumecheng-2369	143	6	,	,	PUNCT
fumecheng-2369	143	7	arxiv:1611.07017	arxiv:1611.07017	NUM
fumecheng-2369	143	8	.	.	PUNCT
fumecheng-2369	144	1	7	7	NUM
fumecheng-2369	144	2	.	.	X
fumecheng-2369	144	3	mao	mao	PROPN
fumecheng-2369	144	4	,	,	PUNCT
fumecheng-2369	144	5	x	x	X
fumecheng-2369	144	6	,	,	PUNCT
fumecheng-2369	144	7	popov	popov	PROPN
fumecheng-2369	144	8	,	,	PUNCT
fumecheng-2369	144	9	vl	vl	NOUN
fumecheng-2369	144	10	,	,	PUNCT
fumecheng-2369	144	11	starcevic	starcevic	NOUN
fumecheng-2369	144	12	,	,	PUNCT
fumecheng-2369	144	13	j.	j.	PROPN
fumecheng-2369	144	14	,	,	PUNCT
fumecheng-2369	144	15	popov	popov	PROPN
fumecheng-2369	144	16	,	,	PUNCT
fumecheng-2369	144	17	m	m	PROPN
fumecheng-2369	144	18	,	,	PUNCT
fumecheng-2369	144	19	2016	2016	NUM
fumecheng-2369	144	20	,	,	PUNCT
fumecheng-2369	144	21	reduction	reduction	NOUN
fumecheng-2369	144	22	of	of	ADP
fumecheng-2369	144	23	friction	friction	NOUN
fumecheng-2369	144	24	by	by	ADP
fumecheng-2369	144	25	nor	nor	CCONJ
fumecheng-2369	144	26	-	-	PUNCT
fumecheng-2369	144	27	mal	mal	ADJ
fumecheng-2369	144	28	oscillations	oscillation	NOUN
fumecheng-2369	144	29	.	.	PUNCT
fumecheng-2369	145	1	ii	ii	PROPN
fumecheng-2369	145	2	.	.	PUNCT
fumecheng-2369	146	1	in	in	ADP
fumecheng-2369	146	2	-	-	PUNCT
fumecheng-2369	146	3	plane	plane	NOUN
fumecheng-2369	146	4	system	system	NOUN
fumecheng-2369	146	5	dynamics	dynamic	NOUN
fumecheng-2369	146	6	,	,	PUNCT
fumecheng-2369	146	7	arxiv:1611.07018	arxiv:1611.07018	NOUN
fumecheng-2369	146	8	.	.	PUNCT
fumecheng-2369	147	1	8	8	X
fumecheng-2369	147	2	.	.	X
fumecheng-2369	148	1	popov	popov	PROPN
fumecheng-2369	148	2	,	,	PUNCT
fumecheng-2369	148	3	vl	vl	PROPN
fumecheng-2369	148	4	.	.	PROPN
fumecheng-2369	148	5	,	,	PUNCT
fumecheng-2369	148	6	heß	heß	PROPN
fumecheng-2369	148	7	,	,	PUNCT
fumecheng-2369	148	8	m.	m.	NOUN
fumecheng-2369	148	9	2015	2015	NUM
fumecheng-2369	148	10	,	,	PUNCT
fumecheng-2369	148	11	method	method	NOUN
fumecheng-2369	148	12	of	of	ADP
fumecheng-2369	148	13	dimensionality	dimensionality	NOUN
fumecheng-2369	148	14	reduction	reduction	NOUN
fumecheng-2369	148	15	in	in	ADP
fumecheng-2369	148	16	contact	contact	NOUN
fumecheng-2369	148	17	mechanics	mechanic	NOUN
fumecheng-2369	148	18	and	and	CCONJ
fumecheng-2369	148	19	friction	friction	NOUN
fumecheng-2369	148	20	,	,	PUNCT
fumecheng-2369	148	21	springer	springer	NOUN
fumecheng-2369	148	22	,	,	PUNCT
fumecheng-2369	148	23	berlin	berlin	PROPN
fumecheng-2369	148	24	,	,	PUNCT
fumecheng-2369	148	25	heidelberg	heidelberg	PROPN
fumecheng-2369	148	26	,	,	PUNCT
fumecheng-2369	148	27	265	265	NUM
fumecheng-2369	148	28	p.	p.	NOUN