Results 11 to 20 of about 14,514,915 (287)

Magnetic control of a tokamak plasma

AIP Conference Proceedings, 2008
he plasma in a tokamak is magnetically confined through electromagnetic fields generated by a set of poloidal field coils, with feedforward nominal voltages or currents based on an approximate plasma model. Therefore, feedback control is necessary.
AMBROSINO, GIUSEPPE, ALBANESE, Raffaele, F. Crisanti   +2 more
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Basic issues on tokamak plasma magnetic control

2008 47th IEEE Conference on Decision and Control, 2008
Aim of this paper is to give an introductory overview of what is typically called the "plasma magnetic control problem" in tokamak machines. Tokamaks are devices with a toroidal symmetry; these devices are, at the present, the most promising for ...
Pironti, A., PIRONTI, ALFREDO, Ariola, M., A. Pironti, M. Ariola   +4 more
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Plasma magnetic control for DEMO tokamak using MPC

2022 IEEE Conference on Control Technology and Applications (CCTA), 2022
This paper proposes a model predictive controller (MPC) designed to tackle the magnetic control of the DEMO plasma. DEMO is an ambitious EU project aimed at the construction by 2050 of a tokamak demonstrating that energy from nuclear fusion can be ...
Mattei M., Mele A., Ariola M., Tartaglione G., Di Grazia L. E., Bie W.   +5 more
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Plasma Potential Control in a Magnetized Plasma Column Using a Thermionic Cathode

Plasma Sources Science and Technology
The ability to drive the plasma potential in a magnetized plasma column using strongly negatively biased emissive cathode is experimentally demonstrated.
Gueroult, R., Pagaud, F, Gueroult, R, Vincent, S. P. H., Pagaud, F., Trotabas, B., Plihon, N, Dolique, V, Vincent, S, Plihon, N., Trotabas, B   +10 more
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Magnetic reconnection in the Jovian tail : X-line evolution and consequent plasma sheet structures [PDF]

, 2011
Magnetic reconnection in planetary magnetospheres plays important roles in energy and mass transfer in the steady state, and also possibly in transient large-scale disturbances.
Kimura, T., Badman, S. V., C. Tao, Tao, C., N. Krupp, Badman, S., E. A. Kronberg, S. V. Badman, Kronberg, E., Fujimoto, M., Kronberg, E. A., Krupp, N., S. Kasahara, A. Retinò, Kasahara, S., T. Kimura, Retinò, A., Retinò, Alessandro, M. Fujimoto, Kimura, Tomoki, 笠原, 慧, 垰, 千尋, Kasahara, Satoshi, Badman, Sarah V., Tao, Chihiro, 木村, 智樹, 藤本, 正樹, Fujimoto, Masaki   +27 more
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Cluster observations of a magnetic field cavity in the plasma sheet [PDF]

, 2006
During the recovery phase of a substorm occurring on 1 September 2002 the four Cluster spacecraft crossed from the northern tail lobe into the plasma sheet.
Cowley, S. W. H., Fazakerley, A. N., Lester, M., Bogdanova, Y. V., Bosqued, J. M., Wild, J. A., Draper, N. C., Grocott, A., J.-M. Bosqued, J.A. Wild, S.W.H. Cowley, M. Lester, J.A. Davies, A.N. Fazakerley, A. Grocott, Y. Bogdanova, N.C. Draper   +16 more
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Accurate and noninvasive prostate cancer detection using plasma-derived extracellular vesicle RNA. [PDF]

FEBS Open Bio
Plasma extracellular vesicles were captured with WGA‐conjugated magnetic beads and profiled for RNA biomarkers. A three‐RNA panel (NM_024955, NR_047469, and NR_002564) distinguished prostate cancer from healthy controls and benign prostatic hyperplasia, supporting a simple, noninvasive approach to improve prostate cancer detection.
Wei H, Wu H, Feng W.
europepmc   +2 more sources

Magnetic detachment and plume control in escaping magnetized plasma [PDF]

Journal of Plasma Physics, 2009
AbstractThe model of two-fluid, axisymmetric, ambipolar magnetized plasma detachment from thruster guide fields is extended to include plasmas with non-zero injection angular velocity profiles. Certain plasma injection angular velocity profiles are shown to narrow the plasma plume, thereby increasing exhaust efficiency.
P. F. SCHMIT, N. J. FISCH
openaire   +3 more sources

Solar wind-magnetosphere-ionosphere interactions in the earth's plasma environment [PDF]

, 2003
The properties of the Earth’s coupled magnetosphere-ionosphere system are dominated by its interaction with the solar wind plasma, mediated by magnetic reconnection processes at the magnetopause interface.
McWilliams, K. A., Davies, J. A., Sandholt, P. E., Cowley, S. W. H., Milan, S. E., Provan, G., Lester, M., Wild, J. A., Khan, H., Yeoman, T. K., Grocott, A.   +10 more
core   +5 more sources

Experimental Investigations of Magnetohydrodynamic Plasma Jets [PDF]

, 2009
This thesis primarily focuses on understanding the plasma behavior during the helicity injection stage of a pulsed spheromak experiment. Spheromak formation consists of a series of dynamic steps whereby highly localized plasma near the electrodes evolves
Kumar, Deepak
core   +1 more source