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Transactions of the American Institute of Mining, Metallurgical ..., Volume 64
Volledige weergave - 1921
Transactions of the American Institute of Mining, Metallurgical ..., Volume 56
Volledige weergave - 1917
acid allotrope alloy aluminum amalgam amorphous metal amorphous phase amount annealed anodes antimony Average babbitt brass Brinell brittle bronze cadmium carbon carnotite castings cathodes cell cent charge chlorine cohesion containing copper cristobalite crushing crystalline phase crystals cuprous curves cyanide deformation density diameter dissolved ductility electric electrolytic elongation Engineers equiaxed ferric iron fracture furnace gases gold grains greater heat high temperatures hydrogen impurities increase industry labor leaching lead load manganese manganese bronze manufacture material mechanical melting metal method mill mining motor-generator obtained operation oxide oxygen plant pounds precipitation present pressure produced properties quantity quartz quartzite radium reduction of area roasters roasting room temperature rupture sample shown shows silica silica brick solder solution steel sulfate sulfides sulfur sulfuric acid swaging Table tank house tensile strength tests thoria tion transformation tridymite tube tungsten tungsten ingot volatile voltage zinc
Pagina 744 - Relations and a Fellow of the American Academy of Arts and Sciences, the American Association for the Advancement of Science, and the Institute of Electrical and Electronic Engineers.
Pagina 794 - An Act to provide for the promotion of vocational education ; to provide for cooperation with the States in the promotion of such education in agriculture and the trades and industries; to provide for cooperation with the States in the preparation of teachers of vocational subjects ; and to appropriate money and regulate its expenditure,
Pagina 808 - American Society of Civil Engineers, American Institute of Mining and Metallurgical Engineers, American Society of Mechanical Engineers, American Institute of Electrical Engineers, American Institute of Chemical Engineers, Society for the Promotion of Engineering Education, and the National Council of State Boards of Engineering Examiners. The Engineers...
Pagina 770 - Fig. 16, the bar shows range of middle 50 per cent. The vertical cross bar shows position of median. The figure is based on data for approximately 36,500 men. Numbers at extreme left are key numbers of occupations. Data are taken from soldiers
Pagina 746 - The Universal Enforcement of the National Minimum— 2.- The Democratic Control of Industry. ^ 3. -The Revolution in National Finance. • 4.- The Surplus Wealth for the Common Good.
Pagina 759 - A and B groups, although, of course, not all high-score men have the other qualifications necessary for officers. Men below C+ should not be accepted as students in Officers' Training Schools unless they possess exceptional power of leadership and ability to command.
Pagina x - ... received the unqualified commendation of all classes in the community. Resolved, That his bright example, as a physician, a scholar and a citizen, should ever be held as a model for imitation by all who seek to advance professional or secular interests. Resolved, That a copy of these resolutions, signed by the President and Secretary, be sent to the family of the deceased and to the medical journals. . ELLSWORTH ELIOT, MD, HERMANN GULEKE, MD, A. JACOBI, MD...
Pagina 737 - The Characteristics and Conditions of the Technical Progress of the Nineteenth Century...
Pagina 761 - GROUP GIVEN BETA; OTHER GROUPS, ALPHA. The psychological ratings have proved valuable not so much because they make a better classification than would come about in the course of time through natural selection, but chiefly because they greatly abbreviate this process by indicating immediately the groups in which suitable officer material will be found, and at the same time those men whose mental inferiority warrants their elimination from regular units in order to prevent retardation of training....
Pagina 184 - There are several cadmium minerals, but none of them occur in quantities large enough to be called ores. The cadmium of commerce is derived from zinc minerals and ores, in almost all of which it occurs in minute quantity, the ratio being about 1 of cadmium to 200 of zinc. Cadmium behaves metallurgically almost the same as zinc and hence constitutes a fraction of 1 per cent of almost all metallic zinc. The sources of cadmium that have been utilized are zinc ores treated by fractional distillation,...