in this work, ag-cu nanoparticles (with different percentages of copper, 10%, 25%, 50%, 75% cu) were synthesized by wet chemical method. copper(ii) sulfate and silver nitrate were taken as metal precursors, ascorbic acid as reducing agent and anhydride maleic (ma) as a modifier. the prepared nanoparticles were characterized by means of x-ray diffraction (xrd) technique and scanning electron mic...

Bioreduction of ferric iron-rich wastes is a rapidly emerging technology for the extraction/ recovery of metals from low-grade ores and metallurgical wastes. However, despite studies being successful, they have only been demonstrated at laboratory scale and issues relating to economic, industrial scale application have yet to be studied. Using bioreduction as a pre-treatment to increase recover...

A nanostructured copper (II) oxide film deposited by reactive DC-magnetron sputtering technique, has been studied for static sensor response towards methanol and ethanol by operating temperature and analyte concentration modulations. The optimum operating temperature (Topt) for the sensing of methanol and ethanol is observed to be 350 ̊C and 400 ̊C, respectively. The maximum sensitivity observe...

During iron deficiency, perturbations in copper homeostasis have frequently been documented. Previous studies in iron-deprived rats demonstrated that enterocyte and hepatic copper levels increase and a copper transporter (the Menkes Copper ATPase; Atp7a) is induced in the duodenal epithelium in parallel to iron transport-related genes (e.g. Dmt1, Dcytb, Fpn1). Moreover, two ferroxidase proteins...

A thermally regenerative ammonia battery (TRAB) is a new approach for converting low-grade thermal energy into electricity by using an ammonia electrolyte and copper electrodes. TRAB operation at 72 °C produced a power density of 236 ± 8 Wm(-2), with a linear decrease in power to 95 ± 5 Wm(-2) at 23 °C. The improved power at higher temperatures was due to reduced electrode overpotentials and mo...

Tellurium is used in cadmium tellurium-based solar cells. Mercury telluride as a sensing material for thermal imaging devices. High-purity tellurium alloys electronic applications. It one of the important raw materials energy an alloying element production low-carbon steel and copper alloys. catalysts are chiefly oxidation organic compounds vulcanizing/accelerating agents processing rubber comp...

An experiment was conducted on eight weak and anaemic goats revealed pale conjunctivae, increased heart rate, rough hair coat, dullness and depression. The haematology showed significantly decreased haemoglobin (7.37±0.16 g %), packed cell volume (PCV)(23.37±0.56%),total erythrocyte count (TEC)(8.12±0.18 million/cumm), mean corpuscular haemoglobin (MCH) (9.10±0.30 pg) and mean corpuscular volum...