Zobrazeno 1 - 10
of 18
pro vyhledávání: '"David T. Tuma"'
Publikováno v:
IEEE Transactions on Plasma Science. 13:207-220
We describe a transient two-dimensional model of forced convection-stabilized electric arcs, such as those which occur in gas-blast circuit breakers. The model solves the local thermodynamic equilibrium (LTE) conservation equations of mass, momentum,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::855e7edcb526728f5693e93b035c0258
https://doi.org/10.1109/tps.1985.4316401
https://doi.org/10.1109/tps.1985.4316401
Autor:
David T. Tuma, Gregory P. Hrin
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 26:13-17
A real-time particulate loading monitor using a multimode microwave cavity is described and analyzed. Microwave power in the cavity volume is scattered with a Doppler shifted frequency by particulates suspended in a gas flowing through the cavity. De
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::814ff9cf971c3a7aac3ef0e20efdf101
https://doi.org/10.1109/tim.1977.4314475
https://doi.org/10.1109/tim.1977.4314475
Autor:
E. Fong, David T. Tuma
Publikováno v:
IEEE Transactions on Plasma Science. 6:527-534
The effect of the position of the upstream electrode on the characteristics of the air blast arc in a converging-diverging nozzle is investigated using a simple one-dimensional model. It is found that altering the upstream electrode position affects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab311e76164875dc0e8baf7793c16bb8
https://doi.org/10.1109/tps.1978.4317158
https://doi.org/10.1109/tps.1978.4317158
Autor:
David T. Tuma, Klaus Ragaller
Publikováno v:
IEEE Transactions on Plasma Science. 9:75-79
The conservation equations of mass, momentum, and energy in differential form, Ohm's law, and the experimentally determined dependence of the interruption capability of the arc on current shape are employed to obtain similarity relations for high pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45901ddf4534e49470e8d329a8e1fa08
https://doi.org/10.1109/tps.1981.4317394
https://doi.org/10.1109/tps.1981.4317394
Autor:
David T. Tuma, Jeffrey A. Paul
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 24:52-55
A new method is described that will measure and locate the source of structural return loss in transmission lines in the presence of mismatch between the measuring bridge impedance and the average characteristic impedance of the transmission line. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::362481488ac652bc392790b021465cd9
https://doi.org/10.1109/tim.1975.4314368
https://doi.org/10.1109/tim.1975.4314368
Autor:
Richard W. Callis, David T. Tuma
Publikováno v:
IEEE Transactions on Plasma Science. 2:283-290
A simple three level atomic model that includes excitation, ionization, stepwise ionization, and diffusion is used to determine similarity relations for low pressure noble gas discharges. A two-temperature electron energy distribution is also include
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ceae22c232148c4b21fa88059ead5164
https://doi.org/10.1109/tps.1974.4316852
https://doi.org/10.1109/tps.1974.4316852
Publikováno v:
Plasma Physics. 11:117-120
A single stage mirror compression experiment was used to study the cyclotron resonance absorption of 3 cm and 8 mm wavelength radiation injected into the plasma early in the compression phase. The results indicate that while the high energy tail of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::672100e469fe7f3454bf9b98b110555f
https://doi.org/10.1088/0032-1028/11/2/003
https://doi.org/10.1088/0032-1028/11/2/003
Autor:
Allan J. Lichtenberg, David T Tuma
Publikováno v:
Plasma Physics. 9:87-91
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::239b39a3de56b84c663aa254df004ed4
https://doi.org/10.1088/0032-1028/9/1/411
https://doi.org/10.1088/0032-1028/9/1/411
Publikováno v:
Plasma Physics. 11:101-116
Numerical orbit calculations-indicate very efficient trapping of injected particles by an r.f. field with a frequency corresponding to the cyclotron frequency within a magnetic mirror. For an initially isotropic velocity distribution the orbit theory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::200f4a93ce36048ddc643044e36f1637
https://doi.org/10.1088/0032-1028/11/2/002
https://doi.org/10.1088/0032-1028/11/2/002
Autor:
Roland Schinzinger, David T. Tuma
Publikováno v:
IEEE Transactions on Education. 15:189-191
An integrated undergraduate course dealing with the basic principles of laboratory practices, including instrumentation, measurements, modeling, simulation and design is described. The dual role of the computer for automated data reduction and simula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9476b68d174d5235efb924c6e2e644a
https://doi.org/10.1109/te.1972.4320757
https://doi.org/10.1109/te.1972.4320757