نتایج جستجو برای: gas mixture

تعداد نتایج: 331788  

2016
Naoyuki Hatayama Masayuki Inubushi Munekazu Naito Shuichi Hirai Yong-Nan Jin Atsushi B. Tsuji Kunihiro Seki Masahiro Itoh Tsuneo Saga Xiao-Kang Li

We recently succeeded in resuscitating an extracted rat heart following 24-48 hours of preservation in a high-pressure gaseous mixture of carbon monoxide (CO) and oxygen (O2). This study aimed to examine the function of rat hearts transplanted after being preserved in the high-pressure CO and O2 gas mixture. The hearts of donor rats were preserved in a chamber filled with CO and O2 under high p...

Journal: :British medical journal 1964
S F HANS H KOPELMAN

It is known that 50% N20 and 50% 02 mixture is a safe and efficient analgesic for parturient women. The British Oxygen Company have produced single cylinders of premixed gases containing a 50/50 gas and oxygen mixture, which would be ideal for use in midwifery if they could be relied upon to dispense a constant 50/50 mixture. Composition changes in premixed gas and oxygen mixtures have been rep...

2016
Ru-Juan Zhan Xi-Cheng Jiang

In typical conditions of diamond film synthesis in a EACVD device ~JllectronAssisted Chemical Vapor Deposition), we report on the sudden jumps, bistability, multistability and negative resistance phenomena in methane-hydrogen mixture discharge plasma. We studied the variations of these phenomena with gas pressure, filament current. The difference of discharge characteristic between pure hydroge...

2018
D. Selbmann

For the Ti-Al-0-C-system it is shown that it is possible to produce good quality deposits of both single-phase TiAlOC or A1203-layers and heterogeneous layers of TiAlOC and A1203 under normal pressure-CVD-conditions using a reaction gas mixture of TiC14, AlC13, H2 and a CO/C02-mixture.

2011
Ewelina Zatorska

Abstract: We consider the system of equations governing a steady flow of polyatomic isothermal reactive gas mixture. The model covers situation when the pressure depends on species concentration and when the diffusion coefficients for each of the species are density-dependent. It is shown that this problem admits weak solution provided the adiabatic exponent for the mixture γ is grater then 7 3 .

2013
Babak Seyed Aghazadeh

Oxyhydrogen is a mixture of Hydrogen (H2) and Oxygen (O2) gases. Detonative mixtures of oxyhydrogens with various combinations of these two gases were used in Gas Detonation Forming (GDF) to form sheets of mild steel. In die forming experiments, three types of conical dies with apex angles of 60, 90 and 120 degrees were used. Pressure of mixtures inside the chamber before detonation was varied ...

2012
Sabine Jansen Wolfgang König WIAS Berlin

We consider an interacting particle system in continuous configuration space. The pair interaction has an attractive part. We show that, at low density, the system behaves approximately like an ideal mixture of clusters (droplets): we prove rigorous bounds (a) for the constrained free energy associated with a given cluster size distribution, considered as an order parameter, (b) for the free en...

2009
E. Abu-Nada A. Al-Sarkhi

This paper presents the effect of friction on the performance of spark ignition engine using gas mixture as working fluid. The results were compared to frictionless engine. Engine parameters that were studied include equivalence ratio, engine speed, break mean effective pressure (BMEP), and cycle thermal efficiency. It was found for the frictionless engine operating at 6000 rev min and stoichio...

2006
Jun-ichi Imai Hiroyuki Shioya Masahito Kurihara

Some mathematical models have been proposed for theoretical analyses of genetic algorithms (GAs). However, these works have limited their objects to a few kinds of GAs in order to formulate them accurately. In this paper, we regard a GA as an information source that generates input-output data. That is, we regard a population and its next population generated by the GA as input and output respe...

Journal: :The Journal of chemical physics 2005
W Jia S Murad

Gas separation efficiencies of three zeolite membranes (Faujasite, MFI, and Chabazite) have been examined using the method of molecular dynamics. Our investigation has allowed us to study the effects of pore size and structure, state conditions, and compositions on the permeation of two binary gas mixtures, O(2)N(2) and CO(2)N(2). We have found that for the mixture components with similar sizes...

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