Results 261 to 270 of about 236,922 (302)

The mean free paths for the carriers in antimony

Journal of Physics and Chemistry of Solids, 1965
Abstract The mean free paths and the conductivities of the electrons and holes in antimony have been derived from resistivity and Hall voltage measurements of antimony deposits 330 to 15,000 A thick. Seebeck coefficients for the electrons and holes in antimony have been estimated from Seebeck coefficient measurements of antimony deposits and the ...
Louis Harris, Francis R. Corrigan
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Reciprocal of the Mean Free Path

The Journal of the Acoustical Society of America, 1964
The geometry of a rectangular enclosure is examined from the viewpoint of the absorption of reverberant energy. For diffuse sound, the significant quantity is not what is implied by the term mean free path but rather the mean reciprocal of the pathlengths.
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Mean-Free-Path Concept in Gas Dynamics

The Physics of Fluids, 1962
The mean free path of a rigid-sphere gas has been calculated from the most general form of the equilibrium distribution function. The mean free path depends on stream speed through the flow Mach number and increases monotonically with Mach number. The temperature dependence of the mean free path defined for realistic intermolecular forces through a ...
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Mean free path effects in superfluid4He

Journal of Low Temperature Physics, 1989
The mean free path effects in superfluid He II was studied with a vibrating wire method in the temperature range from Tλ down to 20 mK under the saturated vapour pressure. The transition from the hydrodynamic regime to the ballistic regime was clearly observed at around 0.7 K with a 47 µm diameter wire.
Masashi Morishita, Tatsuaki Kuroda, Anju Sawada, Takeo Satoh   +3 more
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Life after a mean free path

Physics World, 1990
The history of natural science contains many instances in which a certain branch, considered dead for a long time, suddenly rises from its ashes like a phoenix. Researchers who move to different areas to escape boredom characterise the lethargic state of the field they have just abandoned with cynical expressions: the field is supposed to be mature ...
Ad Lagendijk, Meint van Albada
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Mean free path of sound in an auditorium

Proceedings of the Physical Society, 1947
A brief review of the subject is followed by proofs that the mean free path of sound in an enclosure is equal to 4(Volume/Surface Area) for rectangular, spherical, and cylindrical rooms of any dimensions.
A E Bate, M E Pillow
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Mean Free Path of Protons in the Universe

Nature, 1938
IT is known that on different occasions and in different forms a dimensionless constant of the order of between 1039 and 1040 recurs in physics—the variety being due to the fact that two other dimensionless combinations (hc/e2 and mp/me) are comparatively small and, besides, are of the same order (103). Some of us believe that the large constant is the
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Mean Free Path

2011
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Small and Large Mean Free Paths

1988
It was pointed out in Chapter IV, Section 1, that if we want to solve the Boltzmann equation for realistic nonequilibrium situations, we must rely upon approximation methods, in particular, perturbation procedures. In order to do this, we have to look for a parameter ɛ which can be considered to be small in some situations.
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The room-temperature thermoelectric property of PbTe enhanced by mean-free-path filtering

Journal of Alloys and Compounds, 2022
Donglin Guo, Chunhong Li, Kejian Li
exaly