Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Humphrey J"'
Autor:
Humphrey J. Maris
Publikováno v:
American Journal of Physics. 87:643-645
A freshman mechanics course often includes a theoretical discussion or demonstration of the motion of solid particles through fluids. The effect of viscosity is typically considered to provide a drag force on the particle which at each instant is pro
We describe a method for dark matter detection based on the evaporation of helium atoms from a cold surface and their subsequent detection using field ionization. When a dark matter particle scatters off a nucleus of the target material, elementary e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fee0c8aee46ba4a689ec19687d02a3cb
http://arxiv.org/abs/1706.00117
http://arxiv.org/abs/1706.00117
Publikováno v:
Журнал Экспериментальной и Теоретической Физики. 146:1258-1265
A series of experiments has revealed the existence of a large number (about 18) of different types of negative ions in superfluid helium-4. Despite much effort, the physical nature of these “exotic ions” has still not been determined. We discuss
Autor:
Arun Majumdar, Simon R. Phillpot, David G. Cahill, Kenneth E. Goodson, Gerald D. Mahan, Humphrey J. Maris, Wayne K. Ford, Roberto Merlin
Publikováno v:
Journal of Applied Physics. 93:793-818
Rapid progress in the synthesis and processing of materials with structure on nanometer length scales has created a demand for greater scientific understanding of thermal transport in nanoscale devices, individual nanostructures, and nanostructured m
Autor:
George Andrew Antonelli, Larry Wong, Ebrahim Andideh, Humphrey J. Maris, Wayne K. Ford, B. C. Daly
Publikováno v:
Journal of Applied Physics. 92:6005-6009
We report on measurements of the thermal conductivity of a number of amorphous materials, including fluorinated silicate glass and carbon-doped oxides. These materials are of interest to the microelectronics industry for use as insulators in micropro
Publikováno v:
Journal of Applied Physics. 92:3820-3824
We report on measurements of the thermal conductivity of epitaxially grown nitride thin films. These semiconductor materials are of considerable technological importance for applications such as blue-light emitters and high-power, high frequency elec
Autor:
Sébastien Balibar, Humphrey J. Maris
Publikováno v:
Physics Today. 53:29-34
Cavitation—the formation of bubbles—is a familiar phenomenon. Whenever a liquid is agitated violently, there is a possibility that cavitation will occur (see, for example, figure 1). In the case of boat propellers or hydraulic machines, cavitatio
Publikováno v:
Journal of Low Temperature Physics. 106:101-131
We report on the stable levitation of liquid helium drops of up to 2 cm diameter in a magnetic trap at temperatures down to 1.5 K in the earth's gravitational field. The production and properties of a magnetic trap for diamagnetic materials is discus
Publikováno v:
Physical Review Letters. 77:4840-4843
We describe experiments in which drops of liquid helium-4, as large as 2 cm in diameter, are magnetically levitated. We have found that, when two or more drops are levitated in the same magnetic trap, the drops often remain in a state of apparent con
Autor:
Humphrey J. Maris
Publikováno v:
Czechoslovak Journal of Physics. 46:2943-2950
We consider the properties of liquid helium at pressures less than the saturated vapor pressure, discuss estimates of the location of the liquid-gas spinodal in the phase diagram, and review a number of experimental studies of the nucleation of bubbl