The conversion of herbaceous biomass to glycols via tungstate catalyzed hydrogenolysis is challenging owing its high content extractives, inorganics and S/N, compared with woody biomass. We tested the performance hay in batch autoclave experiments presence soluble sodium polytungstate Raney Ni at 245°C, both excess catalyst as well under catalyst-starving conditions. By this method, we found th...

A linear relationship exists in oxide glasses between glass transition temperature (Tg) and quadrupole splitting ( A ) of Fe , + . DTA and Mössbauer measurements of silicate and tungstate glasses yielded large slopes of 680 and 260 °C/(mm s~ 1 ) f rom the slope of the straight lines when Fe + occupied, as network former (NWF), distorted tetrahedral Si and distorted octahedral W 6 + sites, respe...

The debate on tungsten (W) is fostered by its continuous usage in military munitions. Reports demonstrate W solubilizes in soil and can migrate into drinking water supplies and, therefore, is a potential health risk to humans. This study evaluated the reproductive, systemic and neurobehavioral effects of sodium tungstate (NaW) in rats following 70 days of daily pre-and postnatal exposure via or...

PURPOSE Many chemical compounds and infectious agents such as viruses induce liver damage like necrosis or fulminant hepatic failure which is sometimes difficult to manage by medical therapies. The induced liver necrosis by carbon tetrachloride (CCl4) and thioacetamide (TAA) are exemplary models for experimental liver necrosis caused by oxygen free radicals. The aim of this study was to investi...

In this study we consider copper sample as a substrate under which the Electroless Ni-W-P coatings were established and successfully deposited. The three factor was taken into consideration, i.e. concentration of Nickel Sulphate, Sodium Hypophosphite Tungstate Dihydrate. Central Composite Design modelling done with help total 20 runs that conducted in design, mass deposition per unit area respo...

Zirconium tungstate as an inorganic ion exchange material has been synthesized at different conditions. The materials were characterized by means infrared spectroscopy, thermo gravimetric analysis, and X-ray diffraction techniques. The stability of the ion exchangers was investigated in acidic and alkaline media. Ion exchange properties of synthesized materials were studied by measuring the dis...

This paper reports experimental study on the development of cadmium tungstate scintillator material in the form of nanocrystal films through controlled sol–gel processing and pre-designed doping. We chose cadmium tungstate as a base material for doping and nanostructure development due to its excellent inherent photoluminescence (PL) property, and chemical and thermal stability including non-hy...

An overview status is given of the Lead Tungstate electromagnetic calorimeter which is being developped for the CMS detector at LHC. This includes the development status of PbWO4 crystals, the mechanical design of the calorimeter, the read-out and a brief look into results from test measurements in particle beams. Presented at the “5th International Conference on Advanced Technology and Particl...