Zobrazeno 1 - 10
of 89
pro vyhledávání: '"M.W. Levine"'
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 54:2531-2539
The paper describes the practical realization and characteristics of a small, totally autonomous, passive frequency standard based on the coherent population trapping (CPT) phenomenon. A description of the frequency standard, including physical chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6d5b3b3e0436b2c0c7071ff1dad397c
https://doi.org/10.1109/tim.2005.858120
https://doi.org/10.1109/tim.2005.858120
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 52:822-831
The paper summarizes the relative advantages and disadvantages of coherent population trapping (CPT) or intensity optical pumping (IOP) for the implementation of a passive atomic frequency standard using the isotope /sup 87/Rb. This paper outlines th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d803e86f0b359d16190153fcc5320ad2
https://doi.org/10.1109/tim.2003.814687
https://doi.org/10.1109/tim.2003.814687
Autor:
M.W. Levine
The inner retina of fishes, as in all other vertebrates, carries visual information from the photoreceptors to the axons projecting to the central brain, and also does considerable processing of that information. This processing emphasizes changes in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3632d09efb417519c04dcb538465f8c7
https://doi.org/10.1016/b978-0-12-374553-8.00092-7
https://doi.org/10.1016/b978-0-12-374553-8.00092-7
Publikováno v:
Conference Digest Conference on Precision Electromagnetic Measurements.
Coherent population trapping in alkali atoms has opened a new avenue in the implementation of atomic frequency standards having promising characteristics for field use. The paper gives a short description of the phenomenon, interprets experimental ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7019161ff128457c480d5bf33e02883
https://doi.org/10.1109/cpem.2002.1034980
https://doi.org/10.1109/cpem.2002.1034980
Publikováno v:
Physical Review A. 67
Coherent population trapping is studied in ${}^{87}\mathrm{Rb}$ in a buffer gas. Experimental results are reported on the contrast of the field independent hyperfine resonance line and on its linewidth. A physical model, which includes an optical pum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33ccc3872c0c295a1f63c505437e52e5
https://doi.org/10.1103/physreva.67.065801
https://doi.org/10.1103/physreva.67.065801
Autor:
M.W. Levine
Publikováno v:
Biophysical Journal. 30:9-25
The intervals between successive action potentials (impulses, or "spikes") produced the maintained firing of a neuron (ISIs) are often treated as if they were independent on each other; that is, an impulse train is considered as a stationary renewal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce103a41db650464980059baa5fc8f77
https://doi.org/10.1016/s0006-3495(80)85073-9
https://doi.org/10.1016/s0006-3495(80)85073-9
Autor:
M.W. Levine
Publikováno v:
Thirty Fifth Annual Frequency Control Symposium.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3bfdf29fbee3e7ce02ea7e75bd9ced4
https://doi.org/10.1109/freq.1981.200538
https://doi.org/10.1109/freq.1981.200538
Publikováno v:
31st Annual Symposium on Frequency Control.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f38e773d357a449fcafa5cfd0e078694
https://doi.org/10.1109/freq.1977.200196
https://doi.org/10.1109/freq.1977.200196
Publikováno v:
32nd Annual Symposium on Frequency Control.
A new generation of frequency standards, the VLG-11 hydrogen maser, has been designed and built at the Smithsonian Astrophysical Observatory (SAO). A comprehensive series of environmental and short-term stability tests on three VLG-11 masers has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18ca1aee7d17b57f94747470e0ea7814
https://doi.org/10.1109/freq.1978.200278
https://doi.org/10.1109/freq.1978.200278
Autor:
M.W. Levine, R.F.C. Vessot
Publikováno v:
28th Annual Symposium on Frequency Control.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e13e08f713498950efdb37720ba31e7
https://doi.org/10.1109/freq.1974.200051
https://doi.org/10.1109/freq.1974.200051