نتایج جستجو برای: heat of vaporisation
تعداد نتایج: 21188139 فیلتر نتایج به سال:
INTRODUCTION Transurethral resection of the prostate (TURP) is regarded as the gold standard surgical treatment for benign prostatic hyperplasia (BPH). The completeness of TURP may be assessed indirectly by estimation of the weight of glandular tissue removed. This parameter is often lower than expected. Tissue vaporisation in the course of TURP could be a contributory cause. AIM To quantitat...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
A general strategy to determine enthalpies of formation of protic ionic liquids, based solely on enthalpy of solution measurements, was conceived and tested for 1-methylimidazolium ethanoate, leading to Δ(f)H°(m){[Hmim][O(2)CCH(3)], 1} = -(425.7 ± 1.2) kJ mol(-1). This result in conjunction with the enthalpy of formation of gaseous 1-methylimidazole (mim) proposed in this work, Δ(f)H°(m)(mim, g...
The laser cladding of AA7075 powder onto a AA7075 substrate was conducted to evaluate the effect of heat treatment and measure residual stress between the clad layer and substrate in order to better understand the effect of laser cladding. The microstructure formed in the clad region was characteristic of a high cooling rate, which is typical for laser cladding. The heat affected zone showed co...
Vaporisation and liquid phase thermal decomposition, TD, of two halide ion ionic liquids, 1-octyl-3-methylimidazolium chloride, [C8C1Im]Cl, and 1-octyl-3-methylimidazolium iodide, [C8C1Im]I, are investigated using temperature programmed desorption (TPD) line of sight mass spectrometry (LOSMS) at ultra-high vacuum (UHV). The ability to use MS to distinguish between vaporisation and TD allows the...
Design and Testing of a Vaporisation Calorimeter. Enthalpies of Vaporisation of Some Alkyl Cyanides.
A new method to prepare solid state chlorometallates by reductive dechlorination of solvated niobium pentachloride with vaporisation of nominally free atoms of samanum is described. Products were prepared in an original set-up by evaporation of samarium into a mixed toluene solution of NbCl,, at 180 K. The local order around the Nb atoms was probed by EXAFS spectroscopy at the Nb K edge, using ...
Bubble nucleation in liquid confined nanochannel is studied using molecular dynamics simulations and compared against the over smooth surfaces (i.e. without confinement). Nucleation argon achieved by heating part of a platinum surface to high temperatures surface-to-liquid algorithm implemented LAMMPS. The hydrophilicity nanochannels increased understand its effect on behaviour. Liquid structur...
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