منابع مشابه
Enthalpien von Kupfer- und Silberchalkogeniden
The enthalpy contents of Cu2Se, CuaTe, Ag2Se and Ag2Te at temperatures between 350 K to 50 K above the melting points were measured in an isoperibolic drop-calorimeter. Thermodynamic data of the compounds were derived from these measurements. An analysis of the data leads to the conclusion that a high degree of order is retained in the melts of these compounds, and that the bond character of th...
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( R 3 P ) 2 N i C l 2 a n d L i P ( S i M e 3 ) 2 r e a c t i n a c o m p l e x r e a c t i o n s e q u e n c e finally y i e l d i n g ( R 3 P ) 2 N i ( P S i M e 3 ) 2 ( 5 ) , c o n t a i n i n g a t h r e e m e m b e r e d P N i P r i n g s y s t e m , a n d [ R 3 P N i P ( S i M e 3 ) 2 ] 2 ( 6 ) , c o n t a i n i n g a ( P N i ) 2 f o u r m e m b e r e d r i n g s y s t e m w i t h a n i c...
متن کاملCommentary: David Kupfer, Ph.D., 1925-2004.
Dr. David Kupfer of Worcester, Massachusetts died on December 11, 2004, at the age of 79. The cause of death was a heart attack. Dr. Kupfer was born in Warsaw, Poland, in 1925 to Zalman and Malka Kupfer. In 1933 Zalman moved to Palestine, and in 1934 Malka, David, and his brother, Moshe (Mike), joined him in Tel Aviv. In the 6th grade, David won the all-city Bible contest (for 6th to 8th grader...
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High efficiency white light-emitting diodes with superior color-mixing have been investigated. It is suggested that the patterned remote phosphor structure could improve the uniformity of angular-dependent correlated color temperature (CCT) and achieve high chromatic stability in wider operating current range, as compared to the conventional remote phosphor coating structure. In this experiment...
متن کاملElectroluminescence from Phosphor-doped nanocrystals
Alternating current thin-film electroluminescent (ACTFEL) devices already occupy a segment of the largearea, high-resolution, flat-panel-display market. The AC-TFEL displays, which consist of a phosphor layer, such as manganese doped-zinc sulfide (ZnS:Mn), vertically sandwiched between two insulators that are contacted by electrodes, are robust, possess long lifetimes, and offer high luminance ...
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ژورنال
عنوان ژورنال: Zeitschrift f�r anorganische Chemie
سال: 1907
ISSN: 0863-1778,1521-3749
DOI: 10.1002/zaac.19070520114