نتایج جستجو برای: heptane
تعداد نتایج: 1630 فیلتر نتایج به سال:
The detailed mechanisms of n-heptane and n-butanol were reduced for the target condition ignition delay time using direct relationship diagram method based on error transfer, coupling transfer sensitivity analysis, total material analysis method. (132 species 585 reactions) (82 383 used to verify concentrations major species, respectively. results showed that mechanism has a good prediction abi...
Background and Aim: Decreasing the hardness of dental restorative composites after curing in oral environment can influence their clinical durability. The aim of this study was to evaluate the effect of food-simulating liquids such as 25%, 50%, 75 % ethanol and 50 % heptane on surface hardness of two composites - (Gradia and P60) after curing and immersing time of 24 hours and 7 days.Materials ...
Abstract Study has shown that the precipitation of asphaltenes could be most detrimental mechanism significantly influences well productivity during crude oil processing. The flow seriously affected if effect is not inhibited. This study aims to investigate TiO 2 -based nanofluid in stabilizing flow. ratio /SiO nanocomposite organic nanofluid, salinity and pH on amount solvent ( n -heptane) add...
The preparation of supported catalytically active metal solutions has been investigated using ultrasonication. Sonication conditions and solvents influence the Ga droplet formation hence catalytic performance in heptane dehydrogenation.
In vitro complementation assays have been used to demonstrate the induction of alkane hydroxylase proteins in mutants lacking the ability to convert n-alkanes to their primary alcohols. Purified heptane is an effective inducer in a mutant lacking detectable hydroxylase activity.
Oxidation of NH3/n-heptane mixtures at pressures up to 100 atm and temperatures 400–900 K was characterized experimentally in a laminar flow reactor jet-stirred reactor. A detailed chemical kinetic model developed, updating the hydrogen amine subsets introducing subset for coupling with emphasis on NH2+n-heptane reaction. The provided good prediction ignition delay times measured rapid compress...
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