نتایج جستجو برای: chemical composition
تعداد نتایج: 598778 فیلتر نتایج به سال:
بررسی ارزش غذایی تاغ و عمل آوری آن با سود و آهک در مراحل مختلف رشدبا استفاده از روش کیسه های نایلونی
abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...
Background & Aim: Identification, characterization and detection of medicinal plants chemical composition are very important for phytochemical scientific source. Sumac is one of the medicinal plants in the world that uses for industrial and pharmacological application. In this study, chemical composition of Rhus coriaria has been investigated. Experimental:</s...
Little information is available on the provenance, evolutionary trend and characteristics of the loess deposits in northeast Iran. These deposits are thought to be related to Quaternary paleoclimate. Studies of mineralogical, surface textures and geochemical composition and trace elements in these loesses in Golestan Province suggest that they are mostly derived from felsic igneous rocks (grani...
چکیده ندارد.
حشرات گرده افشان و به خصوص زنبور عسل، از حشرات مفیدی هستند که در معرض آسیب ناشی از اثر حشره کشها قرار دارند. یکی از بهترین روشهای حفاظتی حشرات گرده افشان در برابر آسیب سموم استفاده از ترکیبات دورکننده میباشد. به منظور ارزیابی اثر برخی ترکیبات دور کننده شیمیایی برای کاهش آسیب سموم روی حشرات گرده افشان، چهار مرحله آزمایش در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه صنعتی اصفهان انجام شد.
supported catalysts synthesized via the interaction of mg(oet)2 with ticl4 in the presence or absence of an internal stereoregulating donor (di-n-butyl phthalate), with different solvents (chlorobenzene, n-undecane, n-heptane) at different titanation temperatures have been studied by a set of physicochemical methods. data on the chemical composition, x-ray structure and pore structure of these ...
The nutritive value of Ceratonia siliqua and Gleditsia triacanthos pods was determined on the basis of their chemical composition, in vitro gas production and rumen fermentation end-products. Medicago sativa was used as a reference feed material. The studied samples showed differences in chemical composition and phenolic compounds. Crude protein (CP) content was particulary low (80 g/kg DM) in ...
Shrinkage behavior of a geopolymer cement paste prepared from pumice-type natural pozzolan was studiedby changing parameters of chemical composition including SiO2/Na2O molar ratio of activator and total molar ratiosof Na2O/Al2O3, and H2O/Al2O3. For investigating the effect of curing conditions on shrinkage, hydrothermal curingwas also applied. The obtained results clearly revealed the governin...
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