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2.099  Articles
1 of 211 pages  |  10  records  |  more records»
Selain produksi biodiesel, bioetanol, biometana dan biohidrogen dari sumber terbarukan, gamma-valerolactone (GVL) muncul sebagai bahan bakar terbarukan potensial lainnya yang dapat diproduksi dari biomassa. GVL menunjukkan karakteristik yang sesuai sebaga... see more

The functionalized Shvo’s catalyst precursor {3,4-[p-(EtO)3Si(CH2)3OPh]2-2,5-Ph2(?4-C4CO)}Ru(CO)3 (1) was covalently immobilized to the surface of magnetic nanoparticles, MNPs, including magnetite (Fe3O4) and magnetite covered by one, two and three indepe... see more

A cascade strategy for the catalytic valorization of aqueous solutions of levulinic acid as well as of γ-valerolactone to 2-methyltetrahydrofuran or to monoalcohols, 2-butanol and 2-pentanol, has been studied and optimized. Only commercial catalytic... see more

The production of γ-valerolactone (GVL) directly from biomass-based levulinic acid (LA) and formic acid (FA) without extra hydrogen source is attractive but challenging, due to the requirement of a highly active and stable catalyst. In present work,... see more

In Sudan the expense of municipality treatment is expanding with more strict environmental obligations. Radiation technology for handling of industrial and domestic water supply is presently under study in many countries. The expenses for the wastewater t... see more

The major part of O-rings is caoutchouc, which is not resistant to several solvents, acids, oils, or bases, and this can cause structural deviations in sealing. The present work shows a compatibility study of O-rings to solvents at laboratory scale. The t... see more

Gamma-oryzanol merupakan senyawa antioksidan alami yang diperoleh dari minyak dedak padi atau yang lebih dikenal dengan rice bran oil (RBO). Gamma-oryzanol diketahui dapat melindungi kulit dari radiasi ultraviolet dan meningkatkan kelembaban kulit, sehing... see more

We consider a generalization of the gamma function which we term as lambda analogue of the gamma function or ?\lambda-gamma function and further, we establish some of its accompanying properties. For the particular case when ?=1\lambda=1, the results esta... see more

Continuous gantry motion, continuous beam modulation, and variable dose rate are used in volumetric modulated arc therapy (VMAT) to obtain highly conformal radiation therapy dose distributions. Several errors during daily radiation therapy treatment can b... see more

1 of 211 pages  |  10  records  |  more records»