نتایج جستجو برای: titanium compounds

تعداد نتایج: 261828  

Journal: :Cells, tissues, organs 2001
C Roehlecke M Witt M Kasper E Schulze C Wolf A Hofer R W Funk

A number of studies have demonstrated the pivotal role of collagen in modulating cell growth and differentiation. In bone, where the extracellular matrix is composed of approximately 85% type I collagen, cellular interaction with matrix components has been shown to be important in the regulation of the osteoblast phenotype. Preservation or enhancement of normal osteoblast function and appositio...

Journal: :Metals 2022

This paper presents the results of research on development a technology intended to process electric smelting dusts ilmenite concentrate with extraction silicon and titanium production products in form their dioxides. Dusts were processed for separation using ammonium fluoride method. The optimum conditions fluorination sublimation compounds from dust determined: temperature 260 °С, 6 h duratio...

Journal: : 2021

The properties, applications and methods for producing titanium vanadium diborides are considered. These oxygen-free refractory metal-like compounds. As a result, they characterized by high values of thermal electrical conductivity. Their hardness is relatively high. Titanium exhibit significant chemical resistance in aggressive environments. For these reasons, have found application modern tec...

Journal: :Physical Review Materials 2021

Computational searches for new materials are naturally turning from binary systems, to ternary and other multicomponent beyond. Here, we select the industrially-relevant metals titanium aluminium report results of an extensive structure prediction study on titanium-carbon-oxygen (Ti-C-O) aluminium-carbon-oxygen (Al-C-O) systems. We map out first time full phase stability Ti-C-O Al-C-O compounds...

Journal: :نشریه دانشکده فنی 0
خطیب الاسلام صدر نژاد اسدالله حراتی

low carbon steel samples were both shot into and inoculated with titanium in order to improve mechanical properties such as strength and toughness. sem observations and x-ray analyses revealed that titanium nitride and titanium carbonitride precipitates being scattered in the ferrite substrate reduce the grain size in all as-cast, heat-treated and as-rolled cases. the growth of the grains at hi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان خراسان رضوی - دانشکده علوم پایه 1390

نانو ذرات tio2 به طور گسترده ای در زندگی روزمره مورد استفاده قرار می گیرند. با این حال این نانوذرات اخیرا توسط سازمان جهانی بهداشت به عنوان کارسینوژن گروه 2b عامل سرطان زای احتمالی برای انسان تقسیم بندی شده اند. نانو ذرات tio2 توانایی ورود به بدن و نفوذ به سلول ها و هسته آنها ایجاد آسیب کروموزومی را دارند. به طور مشابهی داروی ضد سرطان وین کریستین (vcr از خانواده آلکالوئیدهای وینکا) نیز منجز به ...

2008
M. Kawahara H. Nakamura K. Tani M. Kitada M. Tachibana H. Koizumi

The adsorption properties of new ceramics titania (titanium dioxide, Ti02) as a column packing material for high performance liquid chromatography (HPLC) were investigated in our recent studies. The adsorption mechanism of titania was found to be different from that of silica gel; the titania adsorbs acidic compounds rather than basic compounds, while silica gel adsorbs basic compounds. In addi...

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