The wide application of graphene in the industry requires direct growth films on silicon substrates. In this study, we found a possible technique to meet requirement above. Multilayer thin (MLG) were grown without catalyst Si/SiO2 using pulsed laser deposition (PLD). It was that minimum number pulses required produce fully covered (uninterrupted) samples is 500. This resulted contain ~5 layers ...

Abstract The system of devolution set up in Northern Ireland 1999 has proved volatile and unstable. In 2017, the Executive collapsed, following resignation Sinn Féin, deputy First Minister. For a three-year period, legislative ceased to operate. UK Government opted not impose Direct Rule from Westminster, as happened previously. This article examines consequences absence devolved government con...

background: solid waste management has emerged as an important human and environmental health issue. municipal solid waste workers (mswws) are potentially exposed to a variety of occupational biohazards and safety risks. the aim of this study was to describe health practices and safety measures adopted by workers in the main municipal company in alexandria (egypt) as well as the pattern of the ...

objective(s) the purpose of the present study was to use the solid dispersion (sd) technique to improve the dissolution rates of indomethacin (imc). materials and methods imc solid dispersions in pvp k30 and isomalt (galen iq 990) were prepared using the solvent evaporation technique and a hot melt method in weight ratios of 2, 10 and 30% (imc:pvp). solid dispersions and physical mixtures were ...

The objective of this experiment was to evaluate effects of reducing forage particle size on cows in early lactation based on measurements of the Penn State Particle Separator (PSPS). Eight cannulated, multiparous cows averaging 19 +/- 4 d in milk and 642 +/- 45 kg BW were assigned to one of two 4 x 4 Latin Squares. During each of the 23-d periods, animals were offered one of four diets, which ...

Vinasse that has high COD and total solid content is bottom of distillation from unit of bioethanol production Vinasse treatment using anaerobic digestion produced biogas. This research used anaerobic digester-laboratory scale at room temperature and batch system. The purpose of this research was investigation the effect of total solid content to biogas production rate from vinasse, pH profil a...

The objective of the present study was to improve the dissolution rate of Modafinil by solid dispersion (SD) systems in PVP-K 30. Drug contents were determined by UV Spectrophotometry at λmax of 259.5 nm. The phase solubility behavior of Modafinil in presence of various concentrations of carriers in distilled water was obtained at 37±2C. The dissolution of Modafinil increased with increasing am...