Phase-field simulation of micropores constrained by a solid network
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The frequency shifts from gas-phase values of the vibrational and rotational states of H2, D2, and HD mols. matrix isolated in solid Ar, Kr, and Xe were calcd. at zero temp. and at pressures 0 ? P ? 570 kbar. Also calcd. were the impurity local mode freque ...
The use of microbalances to study gas-solid reactions at high temps. and normal pressure is often limited by fluctuations due to thermal convection in the reaction zone. The fluctuations depend on the pressure, the type of gas, the temp., and the geometry ...
The sepn. was demonstrated by studying the IR multiphoton dissocn. of CF2DCl [1495-14-3] and CF2HCl/CF2DCl mixts. It is shown how the parameters which control the IR photochem. of CF2DCl such as the temp. and the pressure, as well as the wavelength, the en ...
Raman spectra of Mg2GeO4-olivine were obtained from ambient pressure up to 34 GPa at ambient temperature. Under quasi-hydrostatic pressure conditions, the following modifications in the Raman spectra occur as pressure increases: 1) near 11 GPa, two sharp e ...
Among all the nonlinear effects stimulated Brillouin scattering offers the highest gain in solid materials and has demonstrated advanced photonics functionalities in waveguides. The large compressibility of gases suggests that stimulated Brillouin scat- te ...
The pipetting of small volumes, typically ranging between a few and one thousand microliters (μl), is widely used in many laboratories and essentially relies on air displacement to aspirate and dispense the liquid contained in a small plastic tip. While th ...
The use of microbalances to study gas-solid reactions at high temps. and normal pressure is often limited by fluctuations due to thermal convection in the reaction zone. The fluctuations depend on the pressure, the type of gas, the temp., and the geometry ...
Infrared and Raman spectra of the quartz, rutile and amorphous forms of GeO2 have been recorded under pressure and/or temperature, in order to study the crystalline to crystalline - or amorphous - transformations of this compound in the solid state. X-ray ...
The laser flash photolysis of I was studied over a wide pressure range in several bath gases. At low pressures the obsd. quantum yield for photolysis at 6943 .ANG. is independent of the gas d., whereas at higher pressures the quantum yield decreases with i ...
The vaporization of an entrapped mass of saturated water suddenly allowed to expand is studied both experimentally and theoretically. In the experimental set-up, the water is initially pressurized by a piston at the closed end of a cylinder and heated to t ...
