Results 61 to 70 of about 41,540 (235)

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  

Radio frequency induced and neoclassical asymmetries and their effects on turbulent impurity transport in a tokamak

, 2013
Poloidal asymmetries in the impurity density can be generated by radio frequency heating in the core and by neoclassical effects in the edge of tokamak plasmas.
Angioni, Candy, Catto, Dendy, Dux, Fülöp, Fülöp, Fülöp, Groebner, Groebner, Ingesson, Kagan, Kallenbach, Kazakov, Landreman, Landreman, Marr, Miller, Mollén, Mollén, Moradi, Neu, Porkolab, Pusztai, Pusztai, Pütterich, Valisa   +26 more
core   +1 more source

Comparison of particle trajectories and collision operators for collisional transport in nonaxisymmetric plasmas [PDF]

, 2014
In this work, we examine the validity of several common simplifying assumptions used in numerical neoclassical calculations for nonaxisymmetric plasmas, both by using a new continuum drift-kinetic code and by considering analytic properties of the ...
A. Mollén, Beidler C. D., Beidler C. D., Grieger G., H. M. Smith, Helander P., Iiyoshi A., Li X., M. Landreman, P. Helander, Sleijpen G. L. G.   +10 more
core   +2 more sources

Advancing Sustainable Development Through Exports of Clean Energy Products From Emerging Asian Economies: A Poisson Pseudo Maximum Likelihood Estimation Approach

Sustainable Development, EarlyView.
ABSTRACT The promotion of clean energy is critical to achieving sustainable development. This study investigates the factors that affect the exports, trade potential, and revealed comparative advantage (RCA) of clean energy products (CEPs) in the emerging Asian economies (EAEs).
Arvind Goswami, Rajesh Kumar Jangir, Vijay Kumar Chattu   +2 more
wiley   +1 more source

Examination of Afghanistan's Development Traps

Regional Science Policy &Practice, EarlyView., 2022
Abstract We examine the factors behind Afghanistan's persistent underdevelopment. Drawing on various theories of development traps operating at the demographic, economic and institutional levels, we seek to assess whether and to what extent their functioning affects Afghanistan's development. To capture the functioning of development traps empirically,
Klemen Knez, Tina G. Lokar
wiley   +1 more source

Effects of non-axisymmetric magnetic field on neoclassical transport and ambipolar electric field in tokamak plasmas

Journal of Physics Communications
This study investigates how resonant magnetic perturbation (RMP) govern neoclassical transport and ambipolar electric field dynamics in tokamak plasmas.
Hanhui Li, Zhenggong Han, Yanyan Lu
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

Resilience in a noisy urban system

Regional Science Policy &Practice, EarlyView., 2023
Abstract The ability of cities to recuperate from disturbances and return to their evolutionary pathways depends, first and foremost, on the type of damage that the shock created. But in addition, it depends on how information is transmitted in the urban system and on how noise filters distort the information that reaches economic agents.
Dani Broitman, Daniel Czamanski
wiley   +1 more source

Impurity transport and bulk ion flow in a mixed collisionality stellarator plasma

, 2017
The accumulation of impurities in the core of magnetically confined plasmas, resulting from standard collisional transport mechanisms, is a known threat to their performance as fusion energy sources.
Helander, Per, Mollén, Albert, Newton, Sarah L., Smith, Håkan M.   +3 more
core   +1 more source

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