نتایج جستجو برای: fe cr nanocatalyst

تعداد نتایج: 118975  

2017
Mujeeb Khan Mufsir Kuniyil Mohammed Rafi Shaik Merajuddin Khan Syed Farooq Adil Abdulrahman Al-Warthan Hamad Z. Alkhathlan Wolfgang Tremel Muhammad Nawaz Tahir Mohammed Rafiq H. Siddiqui

Suzuki-Miyaura coupling reaction catalyzed by the palladium (Pd)-based nanomaterials is one of the most versatile methods for the preparation of biaryls. However, use of organic solvents as reaction medium causes a big threat to environment due to the generation of toxic byproducts as waste during the work up of these reactions. Therefore, the use of water as reaction media has attracted tremen...

Journal: :Journal of environmental sciences 2009
Xiaobo Li Linzhi Jia Yunlong Zhao Qun Wang Yongxu Cheng

The seasonal concentration changes of selected heavy metal Cd, Cr, Cu, Fe, Mn, Pb, and Zn in five tissues of marine gastropod Onchidium struma were studied in the Chongming Island, the Yangtze Estuary in April 2007, July 2006, September 2006, and November 2006, respectively. The results demonstrated that the bioconcentration factor of Cu (biomass/water) in all selected tissues was about 10(4) m...

2018
Jun Hu Chaoming Wang Shijun He Jianbo Zhu Liping Wei Shunli Zheng

The impact of four typical adsorbates, namely H2O, H+, Cl−, and OH−, on three different planes, namely, Fe(110), Cr(110) and Cr-doped Fe(110), was investigated by using a density functional theory (DFT)-based model. It is verified by the adsorption mechanism of the abovementioned four adsorbates that the Cr-doped Fe(110) plane is the most stable facet out of the three. As confirmed by the adsor...

Journal: :Transactions of the Iron and Steel Institute of Japan 1980

ژورنال: سلامت و محیط زیست 2016
رونیاسی, نسیم, پرویزی مساعد, حسن,

Background and Objectives: Heavy metals are seriously dangerous for the human body and their accumulation in the body can cause pathological changes in the organs and this can result in cardiovascular, liver and bone diseases, and even cancer. Human is exposed daily to these pollutants via consumption of food and water. Materials and Methods: Considering the cumulative properties of these me...

Journal: :Journal of the Japan Institute of Metals and Materials 1983

Journal: :Journal of the Japan Institute of Metals and Materials 1974

2015
Chiara Ciaccio Francisco Ocaña-Calahorro Enrica Droghetti Grazia R. Tundo Emanuel Sanz-Luque Fabio Polticelli Paolo Visca Giulietta Smulevich Paolo Ascenzi Massimo Coletta Rajagopal Subramanyam

The single-cell green alga Chlamydomonas reinhardtii harbors twelve truncated hemoglobins (Cr-TrHbs). Cr-TrHb1-1 and Cr-TrHb1-8 have been postulated to be parts of the nitrogen assimilation pathway, and of a NO-dependent signaling pathway, respectively. Here, spectroscopic and reactivity properties of Cr-TrHb1-1, Cr-TrHb1-2, and Cr-TrHb1-4, all belonging to clsss 1 (previously known as group N ...

Journal: :iranian journal of veterinary science and technology 0
iman amani kamran sharifi mohamad reza aslani abdonnaser mohhebi

hepatic and renal contents of essential trace elements provide good clues to monitor the nutritional status of grazing animals. liver and kidney samples were collected from 60 sheep and 60 goats slaughtered in zarrinshahr abattoirs and analyzed for essential trace elements. hepatic fe concentrations were significantly higher in sheep than goats. there were also higher renal and hepatic fe conce...

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