Zobrazeno 1 - 10
of 31
pro vyhledávání: '"P. H. Probert"'
Publikováno v:
Ecological Indicators, Vol 121, Iss , Pp 107057- (2021)
Many freshwaters in base-poor upland areas of Britain continue to be affected by acidification as a result of deposition of air pollutants, and agricultural and forestry practices. The effects of land use and annual liming on stream chemistry, diatom
Externí odkaz:
https://doaj.org/article/649a32db32ea4886b89f26a56da1ee73
Autor:
P. H. Probert
Publikováno v:
IEEE Transactions on Plasma Science. 39:1051-1054
We present a new algorithm for interpolation of static current-free magnetic fields based on the use of specialized fourth-degree vector polynomial functions (Maxwell elements) which solve the static current-free Maxwell equations. This method provid
Autor:
C. Lechte, Jerahmie Radder, K. Zhai, John Canik, S. Oh, A. F. Almagri, P. H. Probert, F. S. B. Anderson, Konstantin Likin, David G. Anderson, C. Deng, D. L. Brower, Walter Guttenfelder, Hui Juan Lu, A. Abdou, Joseph Talmadge, V. Sakaguchi, J. C. Schmitt
Publikováno v:
Scopus-Elsevier
Recent results are summarized for the Helically Symmetric Experiment (HSX), which has the capability of running as a quasi-helically symmetric stellarator or as a more conventional, nonsymmetric stellarator. From X-ray measurements, we have demonstra
Autor:
Mark D. Carter, Fred Levinton, J.R. Ferron, C. Neumeyer, Clarisse Bourdelle, M.J. Schaffer, T.K. Gray, W. Davis, G. Oliaro, Jonathan Menard, D. Piglowski, J. L. Lowrance, P. H. Probert, F. Paoletti, Stanley Kaye, C.E. Bush, B. Peneflor, R.P. Doerner, R. E. Bell, M. Rensink, A. von Halle, R.J. Hawryluk, Osamu Mitarai, R.J. Akers, T. Peebles, John B Wilgen, Stephen Jardin, R.J. Fonck, G. D. Porter, R.I. Pinsker, E.D. Fredrickson, Nobuhiro Nishino, Yueng Kay Martin Peng, S. C. Luckhardt, Robert James Goldston, S. Ramakrishnan, Roger Raman, P.M. Ryan, S. Kubota, S. G. Lee, R. E. Barry, T. Stevenson, R. Marsala, M.M. Menon, D. Pacella, Robert Kaita, M. Williams, Vlad Soukhanovskii, C. N. Ostrander, Brian Nelson, M.G. Bell, Masayoshi Nagata, Yuichi Takase, Xueqiao Xu, Stewart Zweben, B. C. Stratton, M. Kalish, D. Mueller, S. J. Diem, R. P. Seraydarian, J.A. Boedo, Dan Stutman, Larry R. Grisham, P. C. Efthimion, Rajesh Maingi, J. Chrzanowski, J.M. Bialek, Ryan J. Schooff, K. W. Hill, P. Sichta, E. Mazzucato, B. Blagojevic, Xian-Zhu Tang, Thomas Jarboe, Peter Beiersdorfer, L.L. Lao, Richard Majeski, S.F. Paul, William Heidbrink, T. K. Mau, Neville C. Luhmann, C. K. Phillips, R. Hatcher, D.W. Swain, S.A. Sabbagh, J. Manickam, D. Mastravito, Wonho Choe, E. Fredd, B. H. Deng, D. S. Darrow, Alan H. Glasser, A. K. Ram, R. A. Ellis, J. Spaleta, D.P. Stotler, David Johnson, G. A. Wurden, D. Hoffman, P. Roney, H.W. Kugel, M. H. Redi, P.T. Bonoli, Ker-Chung Shaing, J. C. Hosea, J. Foley, David Gates, B.P. LeBlanc, Wayne A Houlberg, Mark Gilmore, G.D. Garstka, Manfred Bitter, G. Rewoldt, K. Tritz, A. L. Roquemore, T.S. Bigelow, S. S. Medley, G. Taylor, William R. Wampler, Aaron Sontag, James R. Wilson, Jan Egedal, L. Dudek, Michael Finkenthal, T. Gibney, Ricardo Maqueda, R. W. Harvey, K. C. Lee, E. J. Synakowski, A. Rosenberg, J. Timberlake, W. Blanchard, C.E. Kessel, Michael W Kissick, Masayuki Ono, S. Shiraiwa, W. Park, Hyeon K. Park, B.T. Lewicki, R. Parsells, C.H. Skinner, Jayhyun Kim, R. Vero, J. Robinson, Ezekial A Unterberg, Hantao Ji
Publikováno v:
Scopus-Elsevier
Research on the spherical torus (or spherical tokamak) (ST) is being pursued to explore the scientific benefits of modifying the field line structure from that in more moderate aspect ratio devices, such as the conventional tokamak. The ST experiment
Autor:
A. F. Almagri, F.S.B. Anderson, David G. Anderson, Weixing Ding, D. L. Brower, Joseph Talmadge, C. Deng, P. H. Probert, Stefan Gerhardt
Publikováno v:
Review of Scientific Instruments. 74:1625-1628
Measuring the equilibrium electron density distribution and its response to perturbations provides important information to magnetically confined plasma research. A multichannel interferometer system is now routinely operating on the new quasihelical
Autor:
R. Majeski, P. H. Probert
Publikováno v:
Review of Scientific Instruments. 68:1168-1175
We describe a technique to routinely measure the scattering matrix of a radio frequency (rf) current drive antenna in a magnetic fusion experiment during high power operation. This technique can be used under any conditions of phase or amplitude of e
Publikováno v:
Nuclear Fusion. 36:421-433
A new type of antenna for launching waves in the ion cyclotron frequency range in toroidal plasma devices has been developed and tested in the Phaedrus-T tokamak. This antenna, a stacked stripline (SSL), generates a radiofrequency (RF) magnetic field
Autor:
M. Vukovic, Richard Majeski, R. Durst, R.J. Fonck, Misha Kishinevsky, D. Diebold, C. Litwin, R. A. Breun, P. H. Probert, Thomas Intrator, Noah Hershkowitz, Artur G. Elfimov, P. D. Nonn, S. Wukitch, G.R. Winz, D. Brouchous, Mark Doczy
Publikováno v:
Physics of Plasmas. 3:1331-1339
In the Phaedrus‐T tokamak [R. A. Breun et al., Fusion Technol. 19, 1327 (1991)], Alfven waves are indirectly driven by a fast wave antenna array. Small fractions of minority ions are shown to have a large effect on the Alfven spectrum, as measured
Publikováno v:
Physics of Plasmas. 3:1054-1063
In the Phaedrus‐T tokamak [R. Majeski et al., Phys Fluids B 5, 2506 (1993)], Alfven waves are indirectly driven by a fast wave antenna array. Small fractions of minority ions can couple Alfven and ion–ion hybrid waves and have a large effect on t
Autor:
M. Kishinevsky, R. A. Breun, D. Diebold, S. Wukitch, Artour G Elfimov, M. Doczy, D. Edgell, Thomas Intrator, P. D. Nonn, C. Litwin, P. H. Probert, Noah Hershkowitz, G.R. Winz, D. Brouchous, M. Vukovic, P. E. Moroz
Publikováno v:
Physics of Plasmas. 2:2263-2271
The first experimental evidence of Alfven Wave Current Drive (AWCD) in a tokamak is shown. In a low‐density experiment, an estimated 20–35 kA out of 65 kA total current, or 30%–55% of the total current has been driven. The estimated efficiency