id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-786	Čermáková, E.	Magnetization of Steel Building Materials and Structures in the Natural Geomagnetic Field	2005	6	.pdf	application/pdf	3803	183	53	What is called the effective magnetic moment mG is therefore established as a projection of the vector mtot into the direction of the opposite vector J, which is sufficient to describe the basic magnetic phenomena given by the rela- tionship between vectors mG and J. Vector J (and also mG) can take only discrete positions in the direction of the magnetic field (the projections JH of vec- tor J in the direction of field H are given as multiples of Planck’s constant � � h ( )2� , in the form J MH G� �; MG is the quantum number for the projection of the total moment of the atom momentum into the axis of quantization. The geomagnetic field described above magnetizes ferro- magnetic materials (involving various alloy steels, cast iron, steel reinforcement of panels, various types of building steels) which become magnetized even by weak magnetic fields and keep this condition also after the external magnetic field has been removed.	cache/ap-786.pdf	txt/ap-786.txt