Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Robert A. Gowdy"'
Autor:
Robert H. Gowdy
Publikováno v:
American Journal of Physics. 63:229-232
The most efficient way to operate a rocket is to increase its exhaust velocity as it accelerates. When this increase is done properly, the final kinetic energy of the rocket is maximized. It is shown that the resulting ‘‘perfect rocket’’ is f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9819d6e8a71854bb0a56ad713d90aea5
https://doi.org/10.1119/1.17929
https://doi.org/10.1119/1.17929
Autor:
Robert H. Gowdy
Publikováno v:
Journal of Mathematical Physics. 35:1274-1301
This paper constructs the geometrically natural objects which are associated with any projection tensor field on a manifold with any affine connection. The approaches to projection tensor fields which have been used in general relativity and related
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a6ab6147ac5c61b628b7eb03879059f
https://doi.org/10.1063/1.530589
https://doi.org/10.1063/1.530589
Autor:
Robert H. Gowdy, B. Douglas Edmonds
New boundary conditions are imposed on the familiar cylindrical gravitational wave vacuum spacetimes. The new spacetime family represents cylindrical waves in a flat expanding (Kasner) universe. Space sections are flat and nonconical where the waves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edcd65e077ed11e73b9759c8bfd0b359
Autor:
Julio A. Ibarra, Robert A. Gowdy, Gerald L. Lucas, David Neblett, Silvia C. Formenti, Ajmel A. Puthawala, Nisar Syed, Bryan Langholz, Zbigniew Petrovich
Publikováno v:
American journal of clinical oncology. 18(4)
The outcome of 100 consecutive newly diagnosed breast cancer patients treated between 1975 and 1985 within a protocol of planned segmental mastectomy and radiation therapy that included an initial brachytherapy boost is reported. Margins were not rou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09e7357f83f32ec66219a8c70bbf612c
https://pubmed.ncbi.nlm.nih.gov/7625375
https://pubmed.ncbi.nlm.nih.gov/7625375
Autor:
Robert H. Gowdy
The generalized projection-tensor geometry introduced in an earlier paper is extended. A compact notation for families of projected objects is introduced and used to summarize the results of the previous paper and obtain fully projected decomposition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d5e58a2f7f1400d83ee3df94ea1be6e
http://arxiv.org/abs/gr-qc/9408014
http://arxiv.org/abs/gr-qc/9408014
Autor:
Robert H. Gowdy
Publikováno v:
Journal of Mathematical Physics. 36:5200-5200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::314433d25db0269502e45d47a7c63d88
https://doi.org/10.1063/1.531223
https://doi.org/10.1063/1.531223
Publikováno v:
Journal of Mathematical Physics. 19:1580-1583
Several properties of instantaneous Cauchy surfaces are obtained. It is shown that a strongly causal spacetime admits an instantaneous Cauchy surface through each of its points, that there is a close and reversible relationship between these surfaces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e21b28bd0f1184e3f0d3698d6980ef6a
https://doi.org/10.1063/1.523845
https://doi.org/10.1063/1.523845
Autor:
Robert H. Gowdy
Publikováno v:
General Relativity and Gravitation. 10:431-443
The geometry of a projection tensor field in curved space-time is expressed in a way that does not restrict the dimensionality of the projection. The thermohydrodynamics of a perfect fluid then takes a compact and symmetrical form which also describe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbb9dee86da1fbf0ad7a42c32bb20c4f
https://doi.org/10.1007/bf00760224
https://doi.org/10.1007/bf00760224
Autor:
Robert H. Gowdy
Publikováno v:
Journal of Mathematical Physics. 19:2294-2304
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0fe4cbdd98f677abc5d0396fda059be
https://doi.org/10.1063/1.523608
https://doi.org/10.1063/1.523608
Autor:
A. M. Nisar Syed, Colleen McNamara, Peter Fleming, Don Eads, David Neblett, Khalid M. A. Sheikh, Frederick W. George, Ajmel A. Puthawala, Robert A. Gowdy
Publikováno v:
Cancer. 46:1360-1365
The authors treated 83 patients with carcinoma of the breast using a combination of external and interstitial irradiation at Los Angeles County--University of Southern California Medical Center and Southern California Cancer Center between February 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da72b6501bfcf954f3272365ac8f3600
https://doi.org/10.1002/1097-0142(19800915)46:6<1360::aid-cncr2820460612>3.0.co
https://doi.org/10.1002/1097-0142(19800915)46:6<1360::aid-cncr2820460612>3.0.co