نتایج جستجو برای: Copper oxide

تعداد نتایج: 249845  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان 1388

copper extraction from heap 3 low grade ore at sarchechmeh is limited due to its mixed composition (copper oxide and sulphide minerals). changing this heap to a bioheap could improve the copper recovery.

Journal: :journal of nanostructures 2012
p. nooraei b. shareghi m. salavati-niasari h. r. shahbazkia a. semnani

the interaction of copper oxide nanoparticles and copper ions and proteinase k from tritirachium album limber has been investigated employing uv spectroscopy and kinetics measurements. the aim of this study was to evaluate the effect of nanoparticles of cuo for proteinase k. in this paper we compare the effect of copper oxide nanoparticles with the effect of copper ions on proteinase k stabilit...

Journal: :تولید گیاهان زراعی 0
فریده بهبودی فارغ التحصیل کارشناسی ارشد گروه زراعت، دانشگاه تهران ایرج اله دادی دانشیار گروه زراعت، دانشگاه تهران ابراهیم محمدی گل تپه استاد گروه بیماری شناسی گیاهی، دانشگاه تربیت مدرس، تهران

in order to study the effect of vermicompost containing copper oxide and zinc oxide nanoparticles on was beans, in an experiment factorial were done based on a randomized complete block design in three replications. the experiment treatment were as follows: nanoparticles in 4 levels (0, 0.4, 0.8 and 1.2 g/kg weight of substrate), vermicompost in 3 levels (2.5, 5 and 7.5 g/kg-1 weight of substra...

Journal: :iranian chemical communication 2014
mohamad mohsen momeni ali kazempoor mahboubeh mirhosseini mohadesah hakimiyan zohre nazari

cupper oxide structures with a variety of novel morphologies are synthesized using cupper foil as substrate via a solution route. the structure, morphology and phase of the as-synthesized nanostructures are analyzed by various techniques. sem images show gradual development of hierarchical structures of copper oxide with different morphology. in order to study the effect of reaction time and te...

ژورنال: دانش حفاظت و مرمت 2017

Due to the complex corrosion mechanism of the bronze objects, explaining the structure of different layers of corrosion in these objects at microscopic levels is possible. Typically copper oxide(I) is the first corrosion layer on surface of bronze objects that are excavated of historical sites. However, depending on the environmental conditions، various forms of corrosion layer of tin or copper...

2015
Sarah Triboulet Catherine Aude-Garcia Lucie Armand Véronique Collin-Faure Mireille Chevallet Hélène Diemer Adèle Gerdil Fabienne Proamer Jean-Marc Strub Aurélie Habert Nathalie Herlin Alain Van Dorsselaer Marie Carrière Thierry Rabilloud

Titanium dioxide and copper oxide nanoparticles are more and more widely used because of their catalytic properties, of their light absorbing properties (titanium dioxide) or of their biocidal properties (copper oxide), increasing the risk of adverse health effects. In this frame, the responses of mouse macrophages were studied. Both proteomic and targeted analyses were performed to investigate...

A. Semnani B. Shareghi, H. R. Shahbazkia M. Salavati-Niasari, P. Nooraei

The interaction of copper oxide nanoparticles and copper ions and proteinase K from Tritirachium album Limber has been investigated employing UV spectroscopy and kinetics measurements. The aim of this study was to evaluate the effect of nanoparticles of CuO for proteinase K. In this paper we compare the effect of copper oxide nanoparticles with the effect of copper ions on proteinase K sta...

Journal: :journal of the iranian chemical research 0
mohamamd taghi taghizadeh department of physical chemistry, faculty of chemistry, university of tabriz, tabriz, iran abbas agha bozorgi department of physical chemistry, faculty of chemistry, university of tabriz, tabriz, iran

the thermal decomposition of 86 % vinyl chloride 14 % vinyl acetate copolymer wasstudied by the conductometry technique in the presence of nitrogen. the kinetics of stability andthermal degradation of vinyl chloride- co- vinyl acetate (pvc- co- pvac) copolymer withcopper, copper oxide and tricalcium dicitrate (st) were investigated at various temperatures (150-180 oc ) in solution. the rate coe...

2013
Hao-Long Chen Tsung-Hsun Chiang Ming-Cheng Wu

Nano-scale copper oxide with various morphologies is synthesized via the thermal oxide method and growth in a 5 wt% NaCl solution of spray fog environment. The nano-scale copper oxide is grown on copper metal sheets via the thermal oxide method at 650 ̊C for 60 minutes. Nano-scale copper oxide grains and nanowires are induced on copper metal sheets then placed in 5 wt% NaCl solution of salt spra...

Journal: :Journal of bacteriology 1982
T Matsubara K Frunzke W G Zumft

A synthetic growth medium was purified with the chelator 1,5-diphenylthiocarbazone to study the effects of copper on partial reactions and product formation of nitrite respiration in Pseudomonas perfectomarinus. This organism grew anaerobically in a copper-deficient medium with nitrate or nitrite as the terminal electron acceptor. Copper-deficient cells had high activity for reduction of nitrat...

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