نتایج جستجو برای: activated acetylenic compounds
تعداد نتایج: 441223 فیلتر نتایج به سال:
The principal acetylenic metabolites of the basidiomycete B. 841 (probably a Poria sp.) are known to be the hydroxy acids nemotinic acid (I) and odyssic acid (II), together with derivatives such as the corresponding lactones (Bu'Lock, Jones & Leeming, 1955, 1957). Acetylenic compounds of various kinds are now known to be relatively common constituents of certain groups of plants and fungi, and ...
Betulin derivatives are a widely studied group of compounds of natural origin due to their wide spectrum of biological activities. This paper describes new betulin derivatives, containing a phosphonate group. The allyl-vinyl isomerization and synthesis of acetylenic derivatives have been reported. Structural identification of products as E and Z isomers has been carried out using ¹H-, (13)C-, (...
release volatile organic compounds (vocs) as environmental and occupational pollutant cause macro perspective affect such as climate change, humans and economic consequences. although fixed bed absorber is widely used as a controlling method because of its economically and availability, but these absorbers are facing some issue like high pressure drop, non-uniform distribution of flu...
Introduction: Volatile organic compounds such as xylene are one of the main air pollutants. Adsorption method are of the most common methods used in the control of volatile organic compounds. The aim of this study was to investigate the xylene removal from air through nano activated carbon adsorbent in comparison with NIOSH approved carbon adsorbent. Material and Method: Xylene adsorption...
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