Under the conditions of the temperature of 270.9-278.2K and the pressure of 2. 47 4. 31MPa, equilibrium temperature and pressure of methane hydrate dissociation in three sediment systems with average pore radii 53.2nm, 27.2nm, and 15. 5nm are measured, respectively. The results demonstrate that the average pore size of nature-like sediments has effects on phase equilibrium conditions of methane hydrate.
2.The Gordon theory of n-population Lotka-Volterra ecological system with constant coefficients is considered, the economic equilibrium conditions of the corresponding system ,and the stability of economic equilibrium of system are discussed .
This article explains the form mechanism of ideology capital and analyses the equilibrium conditions of ideology capital investment in a mathematics way with the producer-consumer utility function model in a broad sense on the basis of advancing the category of ideology capital.
The integration between the expansion of tourism capital stock and aggregate capital stock of region and other industry capital stocks is a very important theoretical problem. This paper discusses the criterions and equilibrium conditions of sustainable scale of tourism from theory and analysis main emending factors of tourism in reality.
The sulphur capacity at steel-slag equilibrium conditions and molten steel desulphurization test with top slag CaO-SiO 2-MgO-Al 2O 3-CaF 2 and wire feeding slag CaO-BaO-CaF 2 have been carried out by using 500 g molybdenum-wound furnace and 10 kg inductive furnace.
Adsorption isotherm is a parameter to describe the equilibrium conditions of the components between the stationary phase and the mobile phase in chromatographic separation, and it is also the thermodynamics information of chromatographic separation process design and simulation study.
According to the mechanical equilibrium conditions, earth pressures on inner top and bottom plate are exponentially distribution along the longitudinal direction of a grid and those on inner side plates are superposition of exponential distribution along the longitudinal direction and linear distribution along the vertical direction of the same grid until reaching their corresponding original status at the fore end of the grid after attaining new mechanical equilibrium status.
By analysing and disposing the experimental data from Shanghai NO. 5 I&S Works, comparing these data with the results undertaken by some investigators, the equilibrium conditions of [C]-[O], [Cr]-[O], [C]-[Cr] during stainless steel making in STB combined-blown converter are approached.
Procedures for the calculation of the degree of ordering in the nematic systems under equilibrium conditions and their rheological characteristics are proposed.
Total flow curves of the suspensions of modified (methylated) nanodispersed Aerosil (mean particle size is 40 nm) in Vaseline oil with concentrations of 2-7 wt % are recorded under quasi-equilibrium conditions.
The Regulation of braided stream with heavy sediment load calls for a complete change in river regime of a stream course running hundreds of kilometers long. This is only possible by modifying the hydrograph and the sediment production rate of the watershed and by changing the boundary conditions of the stream channel. The construction of reservoir in the upstream basin upsets the equilibrium conditions of the river downstream of the dam, and a change in regime is expected. The braided riv...
The equilibria between calcium carbide and liquid lead, tin and silver at 850℃, 950℃ and 1050℃ under an argon atmosphere have been investigated. From the equilibrium data obtained, the activity coefficients of calcium in the aforementioned liquid metals have been evaluated. It has been found that the calcium content of the liquid metals in equilibrium with calcium carbide and graphite increases as the temperature is lowered. Of the three metals studied, tin has been found to contain the highest ...
The flame temperatures and product compositions were calculated for the partial combustion of methane over a range of oxygen/methane ratios and initial preheating temperatures under thermodynamic equilibrium as well as pseudo-equilibrium conditions.The results of calculations indicate that under thermodynamic equilibrium,hydrogen and carbon dioxide are the main reaction products;no acetylene can be obtained,since it is an unstable intermediate in the reaction process.Thus for acetyle...