Results 91 to 100 of about 2,547,829 (287)

On the interplay between neoclassical tearing modes and nonlocal transport in toroidal plasmas

Scientific Reports, 2016
This Letter presents the first observation on the interplay between nonlocal transport and neoclassical tearing modes (NTMs) during transient nonlocal heat transport events in the HL-2A tokamak.
X. Ji, Y. Xu, C. Hidalgo, P. Diamond, Yi Liu, O. Pan, Z. Shi, D. L. Yu   +7 more
semanticscholar   +1 more source

Turbulent momentum transport due to neoclassical flows [PDF]

, 2015
Intrinsic toroidal rotation in a tokamak can be driven by turbulent momentum transport due to neoclassical flow effects breaking a symmetry of turbulence. In this paper we categorize the contributions due to neoclassical effects to the turbulent momentum
Jungpyo Lee, M. Barnes, F. Parra, E. Belli, J. Candy   +4 more
semanticscholar   +1 more source

Investor Heterogeneity, Sustainable Board Governance, and Corporate Social Responsibility Performance: Empirical Evidence From Europe

Sustainable Development, EarlyView.
ABSTRACT This study applies an agency‐theoretical lens to examine how investor heterogeneity, specifically institutional, foreign, and domestic ownership, influences corporate social responsibility (CSR) performance. Drawing on extensions of classical agency theory that account for heterogeneous shareholder preferences and principal‐principal conflicts,
Maximilian Focke
wiley   +1 more source

Effect of toroidal rotation on impurity transport in tokamak improved confinement

Nuclear Fusion
The centrifugal force effects from toroidal rotation in improved confinement plasmas are analyzed on high- Z impurities in tokamaks. Tungsten (W) transport simulations are performed using the impurity transport code developed in the integrated code TASK.
Shota Mochinaga, Naohiro Kasuya, Atsushi Fukuyama, Masatoshi Yagi   +3 more
doaj   +1 more source

Understanding Farmer Behaviour for Successful Climate Change Mitigation in Voluntary Initiatives

Australian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT Private and voluntary initiatives, such as voluntary carbon markets, can support public policies aimed at reducing greenhouse gas (GHG) emissions in agriculture. This study investigates the impact of behavioural factors (reluctance to change) and social dynamics (peer imitation) on the adoption of two mitigation practices on Swiss dairy and ...
Marta Tarruella, Robert Huber, Nadja El Benni, Gabriele Mack, David Schäfer, Robert Finger   +5 more
wiley   +1 more source

Properties of a new quasi-axisymmetric configuration [PDF]

, 2018
A novel, compact, quasi-axisymmetric configuration is presented which exhibits low fast-particle losses and is stable to ideal MHD instabilities. The design has fast-particle loss rates below 8\% for flux surfaces within the half-radius, and is shown to ...
Beidler, C. D., Drevlak, M., Helander, P., Henneberg, S. A., Loizu, J., Nührenberg, C., Turkin, Y.   +6 more
core   +2 more sources

Controlling impurity transport in 5D gyrokinetic simulations using a transport barrier

Nuclear Fusion
The effects of transport barriers on impurity transport, specifically helium (He) and tungsten (W), are investigated using the global, flux-driven, full-F, 5D gyrokinetic code GYSELA.
G. Lo-Cascio, E. Gravier, M. Lesur, T. Réveillé, Y. Sarazin, X. Garbet, K. Lim, T. Rouyer, A. Guillevic   +8 more
doaj   +1 more source

Numerical simulation of neoclassical currents, parallel viscosity, and radial current balance in tokamak plasmas [PDF]

, 2001
One of the principal problems en route to a fusion reactor is that of insufficient plasma confinement, which has lead to both theoretical and experimental research into transport processes in the parameter range relevant for fusion energy production. The
Kiviniemi, Timo
core  

Policy Evaluation for Climate Mitigations in the European Agricultural Sector—A Comparison of Policy Options at Micro and Macro Level

Australian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT The purpose of this paper is to discuss the micro‐ and macro‐outcomes for the standard neoclassical carbon tax (whose burden falls on the producers) versus the implication of a budget neutral, performance‐based EU Common Agricultural Policy (CAP) focusing on non‐CO2 emission (N2O and CH4, measured in CO2eq) reduction, especially in the ...
John Helming, Elisa Bardazzi, David Schaefer, Hugo Scherer, Zuzana Smeets Kristkova   +4 more
wiley   +1 more source

Impurity and Trace Tritium Transport in Tokamak Edge Turbulence [PDF]

, 2004
The turbulent transport of impurity or minority species, as for example Tritium, is investigated in drift-Alfv\'en edge turbulence. The full effects of perpendicular and parallel convection are kept for the impurity species. The impurity density develops
M. E. Perry, R. Dux, S. I. Braginskii, V. Naulin   +3 more
core   +1 more source