نتایج جستجو برای: organosilicon compounds
تعداد نتایج: 226849 فیلتر نتایج به سال:
An antimicrobial nano-silver non-woven polyethylene terephthalate (PET) fabric has been prepared in a three step process. The fabrics were first pretreated by depositing a layer of organosilicon thin film using an atmospheric pressure plasma system, then silver nano-particles (AgNPs) were incorporated into the fabrics by a dipping-dry process, and finally the nano-particles were covered by a se...
Abstract The Baumberger Sandstone, a sandy limestone, is used since the Middle Ages as building material not only in surrounding Münster region of North Rhine-Westphalia (Germany), where it quarried to date. To prevent ingress water and reduce weathering processes conservation methods, mostly form organosilicon compounds, were used. This study deals with performance applied hydrophobing agents ...
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
The intestinal absorption of silicone fluid 703, a methyl phenyl polysiloxane, has been studied in the rat. This silicone was chosen for the present investigation because of its lipid-like character and its solubility in olive oil. The experimental findings demonstrate that very little, if any, silicone is absorbed when fed in olive oil. No silicone was found in the lymph lipids of cannulated r...
اسانس گیاهان (خشک شده در سایه)، tanacetum tenuisectum , tanacetum polycephalum به دو روش: 1- تقطیر با آب 2- برای اولین بار به روش میکرواستخراج فاز جامد در فضای فوقانی گرفته شد و به روش gc/ms مورد آنالیز و شناسایی واقع گردید. عمده ترکیبات اسانس سرشاخه های گلدار گیاه (tanacetum polycephalum) hydrodistillation % compounds 12.07 camphor 10.66 1, 8- cineole 9.57 chrysanthenyl acetate – t...
Organosilicon molecules such as silicon carbide (SiC), dicarbide (c-SiC2), tricarbide (c-SiC3), and tetracarbide (SiC4) represent basic molecular building blocks connected to the growth of silicon-carbide dust grains in outflow circumstellar envelopes carbon-rich asymptotic giant branch (AGB) stars. Yet, fundamental mechanisms formation carbides early processes that initiate coupling silicon–ca...
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