Results 71 to 80 of about 2,986 (264)

Delta f Simulation of Ion Neoclassical Transport

, 1999
"Ion neoclassical transport with finite orbit width dynamics is calculated over whole poloidal cross section by using accurate delta f method which employs an improved like-particle collision operator and an accurate weighting scheme to solve drift ...
Okamoto, M., Murakami, S.", "Wang, W., Nakajima, N.   +3 more
core  

Neoclassical electron transport calculation by using delta f Monte Carlo method [PDF]

, 2011
High electron temperature plasmas with steep temperature gradient in the core are obtained in recent experiments in the Large Helical Device [ A. Komori et al., Fusion Sci. Technol. 58, 1 (2010) ].
Arimitsu Wakasa, Matsuoka, Seikichi, Wakasa, Arimitsu, Sadayoshi Murakami, Seikichi Matsuoka, Yokoyama, Masayuki, Satake, Shinsuke, Murakami, Sadayoshi, Shinsuke Satake, Masayuki Yokoyama   +9 more
core   +1 more source

Anisotropic distribution of alpha particles in a tokamak reactor

Nuclear Fusion
We carried out systematic study of neoclassical equilibrium distribution of α particles born from deuterium–tritium nuclear fusion in a tokamak reactor. The distribution in the phase space is visualized in various 2D planes. We studied a previously known
Youjun Hu, Xingyuan Xu, Yingfeng Xu, Yifeng Zheng, Guoqiang Li, Zhiyong Qiu, Youwen Sun   +6 more
doaj   +1 more source

When Thriving for More Collapses the System: The Academic Reproduction of Uncaring Structures

British Journal of Management, EarlyView.
Abstract This essay argues that the widening gap between aspirational aims and visionary orientations and the prevailing practices in neoliberal academia stems from deeper, historically rooted, market‐based logics shaping our institutions, increasingly governed by economic values and academic subjectivities therein.
Lara Pecis, Florian Bauer
wiley   +1 more source

THE URBANOLOGISTS COME TO TOWN: Professional Life and Work in the Urban Solutions Industry

International Journal of Urban and Regional Research, EarlyView.
Abstract This article charts the upsurge of an eclectic global community of professionals new to the field of urban policy and governance, animated by playful and celebratory attitudes towards cities and urbanization: the urbanologists. It contributes to debates in critical urban theory and critical ethnographies of technology to problematize ...
Rachel Bok
wiley   +1 more source

An Accurate delta f Method for Neoclassical Transport Calculation

, 1999
"A delta f method, solving drift kinetic equation, for neoclassical transport calculation is presented in detail. It is demonstrated that valid results essentially rely on the correct evaluation of marker density g in weight calculation.
"Wang, W.X., Okamoto, M.", Murakami, S., Nakajima, N.   +3 more
core  

Self-consistent gyrokinetic modeling of neoclassical and turbulent impurity transport

, 2018
International audienceTrace impurity transport is studied with the flux-driven gyrokinetic GYSELA code [V. Grandgirard et al., $Comp.\ Phys.\ Commun.$\ 207, 35 (2016)].
S. Breton, G. Dif-Pradalier, C. Passeron, C. Ehrlacher, Sarazin, Y., C. Emeriau, G. Latu, D. Estève, Ghendrih, Philippe, Bourdelle, C., Estève, D.,, X. Garbet, C. Gillot, Donnel, P.,, Gillot, C., Grandgirard, V., C. Bourdelle, Ehrlacher, C., Estève, D., Damien, Latu, G., Sarazin, Yanick, Ph. Ghendrih, Asahi, Y., Yuuichi, V. Grandgirard, Garbet, X., Ghendrih, Ph, Breton, S.,, Y. Asahi, Grandgirard, Virginie, Latu, Guillaume, Passeron, C., P. Donnel, Breton, S., Sarah, Y. Sarazin, Emeriau, C., Asahi, Y.,, Garbet, Xavier, Dif-Pradalier, Guilhem, Donnel, P., Peter   +38 more
core   +1 more source

Reduction of neoclassical bulk-ion transport to avoid helium-ash retention in stellarator reactors

Nuclear Fusion
The reduction of neoclassical energy transport in stellarators has traditionally focussed on optimizing magnetic fields for small values of ‘effective helical ripple’ — $\epsilon_\mathrm{eff}$ , the geometric factor associated with electron $1/\nu ...
C.D. Beidler, M. Drevlak, J. Geiger, P. Helander, H.M. Smith, Y. Turkin   +5 more
doaj   +1 more source

GROWING GREEN IN US SUBURBIA: Property Value, Race and Domestic Landscaping Aesthetics in Mid‐Century America

International Journal of Urban and Regional Research, EarlyView.
Abstract Much of the current popular and academic literature on the provision of green spaces is dominated by the assumption that ‘nature’ is an unalloyed positive, and that socioeconomic and racial exclusion from access to green spaces is a problem of unequal spatial distribution rather than of the form and content of particular urban designs.
Kiera Chapman
wiley   +1 more source

Effects of Finite-beta and Radial Electric Fields on Neoclassical Transport in the Large Helical Device

, 1997
"Effects of finite-beta and radial electric fields on the neoclassical transport in the Large Helical Device are investigated with the DKES (Drift, Kinetic Equation Solver) code.
Okamoto, M., "Kanno, R., Ogawa, Y.", Sugama, H., Nakajima, N.   +4 more
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