id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
alkej-77	Jweeg, Mohsen J.; Ismail, Mahmud R.; Yousif, Albert E.	تخمين تجريبي لسرع الانبعاج ألحرجه للأنابيب الناقلة للموائع ذات الطاقة المحفوظة	2018	10	.pdf	application/pdf	3837	196	60	Boundary conditions Critical velocity Error% Estimated Theoretical p-p 18.2238 17.7091 2.9 c-p 24.3573 25.3664 -3.95 c-c 30.9194 35.4182 -12.4 Tables 7 and 8 indicate that there is generally some errors between the theoretical and the estimated values of critical velocities these errors can be attributed to many reasons such as : 1. Mohsen J.Jweeg Al-Khwarizmi Engineering Journal, Vol. 7, No. 4, PP17-26 (2011) 20 In the case of PVC pipe models a digital thermometer was used to record the operating temperature since their mechanical properties are temperature dependant .The sensor of the thermometer was fitted on to the pipe outer surface.	cache/alkej-77.pdf	txt/alkej-77.txt