نتایج جستجو برای: type reaction
تعداد نتایج: 1699872 فیلتر نتایج به سال:
the oxidation of n-pentanol by tetramethylammonium fluorochromate in acidic solution wasstudied using spectrophotometric technique. the reaction was arranged to be under pseudo firstorderconditions respect to the oxidant. a michaelis-menten type kinetic was observed respect tothe substrate. the reaction is catalyzed by hydrogen ions. dependences of the reaction rates ontemperature and different...
Mixed-addenda vanadium substituted polyoxometalate supported on anatase TiO2 crushed nano leaf was synthesized by an unusual reaction with titanium tetraisopropoxide at 100 ºC via sol–gel method under oil-bath condition. The materials characterized by XRD, TEM, IR and UV–vis techniques. In the present work, efficient oxidative of thiols with polyoxometalate-TiO2/hydrogen peroxide ...
The skin hyperreactivity, detected by the pathergy test, is a well known phenomenon in Behcet's disease. Two different methods were used for the pathergy test. a) A needle prick, b) An intadermal injection of normal saline. In this study 83% of Behcet's patients had a positive pathergy test. Where as 44% was of pustule type and 39% of papule type. In 26% of patients the papule formation was obs...
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