ScienceJohn Michels (Journalist) 1959 |
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Стр. 546
... determined by the phosphor , are also influenced by the dielectric medium and the power applied . The best electroluminescent phosphors available at present , showing reasonable efficiency in generating light , are zinc sulfides ...
... determined by the phosphor , are also influenced by the dielectric medium and the power applied . The best electroluminescent phosphors available at present , showing reasonable efficiency in generating light , are zinc sulfides ...
Стр. 570
... ( determined by method of paired comparison ) . paper by a modification of the method of Siekevitz ( 6 ) . Sample weights were determined from difference in planchet weights before and after plating . Radioactivity was measured with a ...
... ( determined by method of paired comparison ) . paper by a modification of the method of Siekevitz ( 6 ) . Sample weights were determined from difference in planchet weights before and after plating . Radioactivity was measured with a ...
Стр. 901
... determined by gas chromatography . Column , 4 - ft . 5A molecular sieve ; current , 360 ma ; flow pressure , 20 lb / in.2 ; carrier gas , helium ; column temperature , 100 ° C for water and 70 ° C for air and plasma . Standard ...
... determined by gas chromatography . Column , 4 - ft . 5A molecular sieve ; current , 360 ma ; flow pressure , 20 lb / in.2 ; carrier gas , helium ; column temperature , 100 ° C for water and 70 ° C for air and plasma . Standard ...
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172 | 172 |
Speed versatility and convenience in measuring | 219 |
Volume 10 1959 | 291 |
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