نتایج جستجو برای: tin

تعداد نتایج: 16679  

Journal: :British journal of industrial medicine 1958
J M BARNES H B STONER

Work reported in recent years from this laboratory has outlined the general features of poisoning in animals given diand trialkyl tin salts (Stoner, Barnes, and Duff, 1955). More detailed accounts of the cerebral oedema produced by triethyl tin in rats (Magee, Stoner, and Barnes, 1957) and the bile duct and liver lesions produced by dibutyl tin salts in rats and mice have also been prepared (Ma...

Journal: :Chemical communications 2015
Yingdan Jia Yanhui Wang Liang Dong Junjie Huang Yan Zhang Jing Su Jianbing Zang

A novel noble metal-free catalyst, with nitrogen-doped amorphous carbon and titanium nitride particles supported on SiC (NC-TiN/SiC), was synthesized. The NC-TiN/SiC catalyst exhibited excellent oxygen reduction reaction activities as well as superior stability and methanol tolerance. The catalytic activities were attributed to the synergistic effect of TiN and NC.

Journal: :Organic & biomolecular chemistry 2016
Shinji Tsunoi Yuta Seo Yugo Takano Itaru Suzuki Ikuya Shibata

A tin-catalyzed reaction of α-hydroxy ketones with 1,1-dicyanoalkenes produced 2-amino-4,5-dihydrofuran-3-nitriles. In the catalytic reaction, tin enolates were generated from α-hydroxy ketones as active catalytic species. The highly basic ability of the Sn-O bonds played an important role in the reactions. This tin-catalyzed reaction was highly atom-economical and required no other metal reage...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1995
mozaffar asadi gasi abdul wahab derwich

the equilibrium constant of adduct formation between some triorganotin chloride of the type r3sncl (r=c6h5, p-ch3c6h4, n-ch3)ch2)3, c6h5-ch2 and lewis bases cl¯, br¯, and i¯, were measured in 50% v/v ethanol-water solvent spectrophotometrically. the average equilibrium constant values for the systems studied shows the following acceptor trend of tin(iv) in the triorganotin chlorides: p-tolyl > ...

Journal: :شیمی کاربردی 0
سید محمد وحدت مریم خاورپور فرج اله محمدزاده

nano tin dioxide was employed as a catalyst for efficient and facile preparation of pyran derivatives via the one-pot three component condensation reaction of various aldehydes with malononitrile and dimedone. chromene derivatives via the one-pot three component condensation reaction of various aldehyde with malononitrile and 4-hydroxycoumarin were also synthesized by this novel catalyst. the d...

2017
Sho Hasegawa Maki Shibata Makoto Mochizuki Takashi Katsuki Manami Tada Fumihiko Hinoshita

Although patients with anorexia nervosa (anorexia) are known to show tubulointerstitial nephritis (TIN), the pathophysiology of its progression is not fully understood. We herein report a 31-year-old woman with anorexia who showed acute exacerbation of chronic kidney disease. Renal biopsy showed non-uniform chronic TIN; some areas were obsolete lesions and other areas were active lesions. In ad...

2002

As the electronics industry begins to focus upon the tin-silver-copper family of alloys as a viable replacement for tin-lead solders, research needs to be done to determine if any particular alloy is best suited for the broadest range of applications. The tin-silver-copper family of alloys has earned a great deal of positive response from various industry consortia and organizations in recent y...

2014
Sergey V. Brodsky Tibor Nadasdy

Cellular and fluid exudation in the interstitial tissue was noted by Councilman in 1898, while he studied kidneys of patients who died of scarlet fever and diphtheria (1). Councilman also determined that these kidneys did not contain bacteria (they were sterile). He called the condition acute interstitial nephritis (AIN). The term interstitial nephritis connotes predominant involvement of the r...

2016
Ganesh Kumar Meenashisundaram Mui Hoon Nai Abdulhakim Almajid Manoj Gupta

Novel Mg (0.58, 0.97, 1.98 and 2.5) vol. % TiN nanocomposites containing titanium nitride (TiN) nanoparticulates of ~20 nm size are successfully synthesized by a disintegrated melt deposition technique followed by hot extrusion. Microstructural characterization of Mg-TiN nanocomposites indicate significant grain refinement with Mg 2.5 vol. % TiN exhibiting a minimum grain size of ~11 μm. X-ray ...

Journal: :Angewandte Chemie 2015
Petra Vasko Shuai Wang Heikki M Tuononen Philip P Power

Reaction of the tin cluster Sn8(Ar(Me6))4(Ar(Me6)=C6H2-2,6-(C6H3-2,4,6-Me3)2) with excess ethylene or dihydrogen at 25 °C/1 atmosphere yielded two new clusters that incorporated ethylene or hydrogen. The reaction with ethylene yielded Sn4(Ar(Me6))4(C2H2)5 that contained five ethylene moieties bridging four aryl substituted tin atoms and one tin-tin bond. Reaction with H2 produced a cyclic tin s...

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