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recently I investigated the synthesis of SrAl2O4:Eu, Dy by solid state reaction at 1100 C. But synthesiszed pigment didn't show phosphoros. what kind of alumina, stransium carbonate, Eu2O3 and...
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Lubricating oil was an important resource and a petroleum base product. The high price of lube oil and objective of saving valuable foreign exchange had resulted in efforts for regeneration of...
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