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Mostrando 341 - 360 Resultados de 912 Para Buscar '"stellarator"', tiempo de consulta: 0.15s Limitar resultados
  1. 341
    “…Although the tokamak(1) is the leading toroidal magnetic-confinement concept, it is not without shortcomings and the fusion community has therefore also pursued alternative concepts such as the stellarator. Unlike axisymmetric tokamaks, stellarators possess a three-dimensional (3D) magnetic field geometry. …”
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    Demonstration of reduced neoclassical energy transport in Wendelstein 7-X
  2. 342
    “…Fusion energy research has in the past 40 years focused primarily on the tokamak concept, but recent advances in plasma theory and computational power have led to renewed interest in stellarators. The largest and most sophisticated stellarator in the world, Wendelstein 7-X (W7-X), has just started operation, with the aim to show that the earlier weaknesses of this concept have been addressed successfully, and that the intrinsic advantages of the concept persist, also at plasma parameters approaching those of a future fusion power plant. …”
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    Confirmation of the topology of the Wendelstein 7-X magnetic field to better than 1:100,000
  3. 343
    por Freidberg, Jeffrey
    Publicado 2014
    “…Included are detailed analyses of MHD equilibrium and stability, with a particular focus on three key configurations at the cutting-edge of fusion research: the tokamak, stellarator, and reversed field pinch. Other new topics include continuum damping, MHD stability comparison theorems, neoclassical transport in stellarators, and how quasi-omnigeneity, quasi-symmetry, and quasi-isodynamic constraints impact the design of optimized stellarators. …”
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    Ideal MHD
  4. 344
    por Melnikov, A V
    Publicado 2019
    “…The book also compares spontaneous and biased transitions from low to high confinement regimes on both classes of closed magnetic traps (tokamak and stellarator) and highlights the common features in the behavior of electric potential and turbulence of magnetized plasmas. …”
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    Electric potential in toroidal plasmas
  5. 345
    “…Test particle runs of the TRAN transport code suggest that for quasineutrality to prevail in tokamaks a certain minimum level of 3D asymmetry of the magnetic spectrum is required which is comparable to that found in quasiaxially symmetric (QAS) stellarators. The computational theory suggests that a QAS stellarator with two field periods and proportions like those of ITER is a good candidate for a fusion reactor. …”
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    Design of the DEMO Fusion Reactor Following ITER
  6. 346
    “…The first physics operation phase on the stellarator experiment Wendelstein 7-X was successfully completed in March 2016 after about 10 weeks of operation. …”
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    Key results from the first plasma operation phase and outlook for future performance in Wendelstein 7-X
  7. 347
    por Hilditch, R. W.
    Publicado 2001
    Tabla de Contenidos: “…Close binary stars: a historical review -- Two-body orbital motion -- The determination of orbits -- Perturbations, the Roche model and mass exhange/loss -- Photometry and polarimetry: stellar sizes and shapes -- Masses and absolute dimensions for stars in binaries -- The imaging of stellar surfaces and accretion structures.…”
    Libro
    An introduction to close binary stars /
  8. 348
    Publicado 1970
    Tabla de Contenidos: “…The confirmation of continental drift / Hurley -- The lunar orbiter missions to the moon / Levin, Viele, and Eldrenkamp -- Radar observations of the planets / Shapiro -- The atmospheres of Mars and Venus / Eshleman -- The discover of Icarus / Richardson -- Jupiter's Great Red Spot / Hide -- The solar system beyond Neptune / Gingerich -- The solar chromosphere / Athay -- The solar wind / Parker -- Neutrinos from the sun / Bahcall -- Life outside the solar system / Huang -- The Crab Nebula / Oort -- The youngest stars / Herbig -- Dying stars / Greenstein -- Stellar populations / Burbidge and Burbidge -- The arms of the galaxy / Bok -- Interstellar grains / Greenberg -- Hydroxyl radicals in space / Robinson -- Pulsating stars and comic distances / Kraft -- Hydrogen in galaxies / Roberts -- The evolution of galaxies / Arp -- Exploding galaxies / Sandage -- Seyfert galaxies / Weymann -- X-Ray astronomy / Friedman -- The infrared sky / Neugebauer and Leighton -- Ultraviolet astronomy / Goldberg -- Pulsars / Hewish -- The Red-Shift / Sandage -- The evolutionary universe / Gamow -- The problme of the Quasi-stellar objects / Burbidge and Hoyle -- The primeval fireball / Peebles and Wilkinson -- Cosmology before and after quasars / Sciama -- The origin of galaxies / Rees and Silk.…”
    Libro
    Frontiers in astronomy : readings from Scientific American
  9. 349
    Publicado 1997
    Tabla de Contenidos: “…Reichardt, Isabel Fariñas -- Neuronal cell death / Julie Agapite, Hermannn Stellar -- Inductive signals and the assignment of cell fate in the spinal cord and hindbrain: an axial coordinate system for neural patterning / Thomas M. …”
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    Información biográfica
    Molecular and cellular approaches to neural development
    Libro
    Molecular and cellular approaches to neural development /
  10. 350
    por Güdel, Manuel
    Publicado 2020
    “…I present a summary of evolutionary trends for stellar rotation, stellar wind mass loss and stellar high-energy output based on observations and models.…”
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    The Sun Through Time
  11. 351
    “…The experiment was laid out as a randomized complete block design (RCBD) with six treatments replicated thrice, namely; weedy control, hoe weeding at 3 and 6 weeks after crop emergence (WACE), a label recommended dose of Stellar-Star at 3 WACE, a reduced Stellar-Star dose (75% of label dose) at 3 WACE, a double dose of Stellar-Star split applied at 3 and 6 WACE and a tank mix of label doses of Stellar-Star + Atrazine applied at 3 WACE. …”
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    Evaluation of a pre-formulated post-emergence herbicide mixture of topramezone and dicamba on annual weeds and Bermuda grass in maize in a sub-tropical agro-ecology
  12. 352
    por Campbell, C G
    Publicado 2018
    “…This occurs in a wide variety of ways, including magnetic stellar and orbital coupling, magnetic channelling of accretion streams, magnetic stellar coupling to accretion discs, dynamo field coupling in discs, and magnetic stellar and disc winds. …”
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    Magnetohydrodynamics in binary stars
  13. 353
    por Lugaro, Maria
    Publicado 2005
    “…Stellar grains represent a unique and fascinating subject of study. …”
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    Stardust from meteorites: an introduction to presolar grains
  14. 354
    “…The origin of young star clusters represents a major challenge for modern stellar astrophysics. While stellar rotation partially explains the colour spread observed along main-sequence turn-offs, i.e. where stars leave the main-sequence after the exhaustion of hydrogen in their core, and the multiple main sequences in the colour-magnitude diagrams of stellar systems younger than approximately 2 Gyr, it appears that an age difference may still be required to fulfill the observational constraints. …”
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    NGC1818 unveils the origin of the extended main-sequence turn-off in young Magellanic Clouds clusters
  15. 355
    por Phillips, A C
    Publicado 1999
    “…The Physics of Stars, Second Edition, is a concise introduction to the properties of stellar interiors and consequently the structure and evolution of stars. …”
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    The physics of stars
  16. 356
    “…This branching is unique, since it is essentially determined by the temperature- and density-sensitive stellar decay rates of 128I and only marginally affected by the specific stellar neutron flux. …”
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    128Xe and 130Xe: Testing He-shell burning in AGB stars
  17. 357
    por Maeder, André
    Publicado 2009
    “…Stellar rotation is also an essential prerequisite for the occurrence of Gamma-Ray Bursts. …”
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    Physics, Formation and Evolution of Rotating Stars
  18. 358
    por Chan, Man Ho, Lee, Chak Man, Yu, Chi Wai
    Publicado 2022
    “…We anticipate that future high quality observational data of the S2 stellar orbit or other stellar orbits can help reveal the actual mass distribution near the SMBH and the nature of dark matter.…”
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    Investigating the nature of mass distribution surrounding the Galactic supermassive black hole
  19. 359
    por Domingo-Pardo, C., Babiano-Suarez, V., Balibrea-Correa, J., Caballero, L., Ladarescu, I., Lerendegui-Marco, J., Tain, J.L., Calviño, F., Casanovas, A., Segarra, A., Tarifeño-Saldivia, A.E., Guerrero, C., Millán-Callado, M.A., Quesada, J.M., Rodríguez-González, M.T., Aberle, O., Alcayne, V., Amaducci, S., Andrzejewski, J., Audouin, L., Bacak, M., Barbagallo, M., Bennett, S., Berthoumieux, E., Bosnar, D., Brown, A.S., Busso, M., Caamaño, M., Calviani, M., Cano-Ott, D., Cerutti, F., Chiaveri, E., Colonna, N., Cortés, G.P., Cortés-Giraldo, M.A., Cosentino, L., Cristallo, S., Damone, L.A., Davies, P.J., Diakaki, M., Dietz, M., Dressler, R., Ducasse, Q., Dupont, E., Durán, I., Eleme, Z., Fernández-Domíngez, B., Ferrari, A., Ferro-Gonçalves, I., Finocchiaro, P., Furman, V., Garg, R., Gawlik, A., Gilardoni, S., Göbel, K., González-Romero, E., Gunsing, F., Heyse, J., Jenkins, D.G., Jericha, E., Jiri, U., Junghans, A., Kadi, Y., Käppeler, F., Kimura, A., Knapová, I., Kokkoris, M., Kopatch, Y., Krtička, M., Kurtulgil, D., Lederer-Woods, C., Lonsdale, S.-J., Macina, D., Manna, A., Martínez, T., Masi, A., Massimi, C., Mastinu, P.F., Mastromarco, M., Maugeri, E., Mazzone, A., Mendoza, E., Mengoni, A., Michalopoulou, V., Milazzo, P.M., Mingrone, F., Moreno-Soto, J., Musumarra, A., Negret, A., Ogállar, F., Oprea, A., Patronis, N., Pavlik, A., Perkowski, J., Petrone, C., Piersanti, L., Pirovano, E., Porras, I., Praena, J., Ramos Doval, D., Reifarth, R., Rochman, D., Rubbia, C., Sabaté-Gilarte, M., Saxena, A., Schillebeeckx, P., Schumann, D., Sekhar, A., Smith, A.G., Sosnin, N., Sprung, P., Stamatopoulos, A., Tagliente, G., Tassan-Got, L., Thomas, B., Torres-Sánchez, P., Tsinganis, A., Urlass, S., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vescovi, D., Vlachoudis, V., Vlastou, R., Wallner, A., Woods, P.J., Wright, T.J., Žugec, P.
    Publicado 2020
    “…Under stellar conditions, nuclear reaction rates are different from those measured in laboratory. …”
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    Review and new concepts for neutron-capture measurements of astrophysical interest
  20. 360
    por Mengoni, Alberto
    Publicado 2005
    “…The method for an experimental determination of the stellar enhancement factor for the cross section of the $^{151}$Sm$(n,\gamma)$ reaction process is proposed. …”
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    Neutron capture cross sections: from theory to experiments and back
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