Results 261 to 270 of about 23,904 (309)

Pressure effects in confined nanophases

Molecular Simulation, 2014
In this article, we review how pressure effects in pores affect both the physics of the confined fluid and the properties of the host porous material.
B. Coasne, Y. Long, K.E. Gubbins
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Statistics of confined self-avoiding walks. II. Entropy and pressure of confinement

Journal of Physics A: Mathematical and General, 1994
For pt. 1, see ibid., vol. 27, p. 2653, (1994). Self-avoiding walks (SAWs) up to 198 steps and random-flight walks (RFWs) up to 598 steps were computer generated. The entropy change upon confinement of the walks, as well as the pressure exercised by corresponding chains obeying Hamiltonian mechanics on the surface of the confining spheres, was derived ...
Jaeckel, Alain, Dayantis, Jean
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ANISOTROPIC PRESSURE OF A QUANTUM GAS IN CONFINED SPACE

Modern Physics Letters B, 2010
In confined space, the thermodynamic potential is shape-dependent. Therefore, the pressure of ideal gases in confined space is anisotropic. We study this anisotropy in a thermodynamic manner and find that the thermodynamic pressures usually depend on the form of deformations, and hence are not equal to each other which is a natural representation of ...
Pang, Hai, Dong, Cheng-Wei, Qiu, Rong-Tao, Zhang, Ya-Bin   +3 more
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The pressure of a fluid confined in a disordered porous material

The Journal of Chemical Physics, 1995
Using the Green–Bogoliubov method, we derive an expression for the thermodynamic pressure or grand potential density for a molecular model of a fluid confined in a disordered porous matrix. The expression is equivalent to the virial equation derived previously via the replica method [Rosinberg et al., J. Chem. Phys.
KIERLIK, E, ROSINBERG, ML, TARJUS, G, MONSON, P   +3 more
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Mirror confinement and control through radiation pressure

Optics Letters, 1984
The control of the position of a mirror by radiation pressure is analyzed theoretically. Under realistic noise conditions, the position of a light mirror suspended inside a fixed Fabry-Perot interferometer can be stabilized within a few nanometers with incident powers of less than 1 W.
J D, McCullen, P, Meystre, E M, Wright
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Plastic Bifurcation in the Triaxial Confining Pressure Test

Journal of Applied Mechanics, 2000
Bifurcations of a circular cylinder are studied, within the context of the triaxial confining pressure test, for pressure sensitive solids. Material response is modeled by large strain versions of flow and deformation theories of plasticity in conjunction with the Drucker-Prager solid.
Durban, D., Papanastasiou, Panos C., Durban, D., Papanastasiou, Panos C.   +3 more
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Structure and dynamics of water confined in a graphene nanochannel under gigapascal high pressure: dependence of friction on pressure and confinement

Physical Chemistry Chemical Physics, 2017
The friction coefficient at the water/graphene interface is dependent on the lateral pressure and nanochannel height under gigapascal high-pressure.
Lei Yang, Yanjie Guo, Dongfeng Diao
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Rock friction-effect of confining pressure, temperature, and pore pressure

pure and applied geophysics, 1978
This paper reviews many of the mechanical properties of faulted and jointed rock under pressure and temperature and in the presence of water. At low effective confining pressures (below about 1 kilobar), the friction strength is quite variable and depends on the frictional resistance between gouge particles or asperities and on the dilatancy of the ...
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Deformation of Chalk Under Confining Pressure and Pore Pressure

Society of Petroleum Engineers Journal, 1981
Abstract Compression tests with and without pore pressure have been run on Danian and Austin chalks. The rocks yielded under increasing hydrostatic stress by pore collapse. The same effect was produced by holding a constant hydrostatic stress and reducing the pore pressure. This pore collapse reduced the permeability.
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Pressure confinement effect in MoS₂monolayers

Nanoscale, 2015
With ever increasing interest in layered materials, molybdenum disulfide has been widely investigated due to its unique optoelectronic properties. Pressure is an effective technique to tune the lattice and electronic structure of materials such that high pressure studies can disclose new structural and optical phenomena.
Fangfei, Li, Yalan, Yan, Bo, Han, Liang, Li, Xiaoli, Huang, Mingguang, Yao, Yuanbo, Gong, Xilian, Jin, Baoli, Liu, Chuanrui, Zhu, Qiang, Zhou, Tian, Cui   +11 more
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