The effect of cobalt precursor on the structure of Co supported multi-walled carbon nanotubes (MWCNTs) were studied by using X-ray photoelectron spectroscopy (XPS). MWCNTs were treated with a mixture of nitric and sulfuric acids and decorated with cobalt and/or cobalt oxides via aqueous impregnation solutions of cobalt nitrate or cobalt acetate followed by reduction in hydrogen. XPS was mainly ...

DEAE-Toyopearl (1 pass) and CM-Toyopearl (2 passes). Lipase I consists of two polypeptide chains [a small peptide with sugar moiety (A-chain) and a large peptide of moleculaT weight 34,OOO (B-chain)]. Lipase II has a molecular weight of 30,OOO consisting of a single polypeptide chain. Lipase I appeared to be conyerted to Lipase II by limited proteQlysis by a specific protease a small amount of ...

Streptokinase is a novel fibrionotic protein produced by several bacterial species. As a therapeutic, streptokinase can be used as thromboembolic disorders where it dissolves a blood clot by the activation of plasminogen to plasmin. In the present study, Bacillus licheniformis used for the production of streptokinase under soya bean as carbon source. The optimum day, pH and temperature were als...

Effect of the change of crystallinity and micro texture of electroplated copper thin films by annealing on the stressinduced migration was investigated experimentally and theoretically. The micro texture of electroplated copper thin films changed drastically as a function of their electroplating conditions and the annealing temperature after the electroplating. The crystallinity of the electrop...

The digestion method using a small proportion of a strong oxidizing agent perchloric acid seems to have been taken from a ’continuous flow method’, which was not designed for discrete digestion and analysis. There is considerable evidence that satisfactory digestion ofeven tMrly refractory substances can be achieved without the use of perchloric acid (1) and it is now usually recommended that p...

Brake lining, a friction lining material has over the years been produced mainly from asbestos. Asbestos health hazards have necessitated need to source materials other safer directions. A novel composite local was developed. The brake production dispersion hardening process by techniques of powder metallurgy finely divided particles raw mix. included sawdust, resin, rubber latex, clay, carbon ...

Thin silicon nitride (Si3N4) films deposited using plasma-enhanced chemical deposition (PECVD) method have been used as metalinsulator-metal (MIM) capacitor dielectric for GaAs heterojunction bipolar transistor (HBT) technology. The characteristics of the films, which were deposited at 300C, were found to be dependent on how the PECVD film was deposited. A silicon nitride film deposited as a mu...

The article presents the results of a study ultrasonic drying process which is promising way to intensify moisture removal at low temperatures. An experimental stand was developed for research. an dryer with automatic maintenance set temperature. A flexural-oscillating disk radiator used as source action. conducted studies have shown that changing speed agent from 0.1 m/s 0.2 during convective ...

ZnO nanorods with different sizes and shapes have been successfully synthesized via a simple hydrothermal route, using zinc acetate and Cetyltriammonium bromide (CTAB) as the reactants. The thick films of as prepared ZnO were prepared by screen-printing technique in desired pattern. The films are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission elect...

The present study analyses the potential of acid treated chitosan for simultaneous co-adsorptive removal of phenol and cyanide from a binary waste water solution. The effects of parameters like pH, temperature, initial concentration, adsorbent dose, and adsorbent size were studied. At an optimum pH of 8, temperature of 300C, initial phenol and cyanide concentration of 200 mg/L and 20 mg/L respe...