Results 101 to 110 of about 41,540 (235)

A general comparison between tokamak and stellarator plasmas

Matter and Radiation at Extremes, 2016
This paper generally compares the essential features between tokamaks and stellarators, based on previous review work individually made by authors on several specific topics, such as theories, bulk plasma transport and edge divertor physics, along with ...
Yuhong Xu
doaj   +1 more source

Impurity transport in Alcator C-Mod in the presence of poloidal density variation induced by ion cyclotron resonance heating

, 2014
Impurity particle transport in an ion cyclotron resonance heated Alcator C-Mod discharge is studied with local gyrokinetic simulations and a theoretical model including the effect of poloidal asymmetries and elongation.
Belli, Emily A., Fülöp, Tünde, Howard, Nathan T., Kazakov, Yevgen O., Mollén, Albert, Pusztai, István, Reinke, Matthew L., Team, the Alcator C-Mod   +7 more
core   +1 more source

The differential effects of prevention and restrictive policies in crises: What can we learn from the COVID‐19 pandemic?

European Management Review, EarlyView.
Abstract This study aims to investigate the impact of lockdown and vaccination policies on business confidence in Europe, offering insights for future pandemic responses. Our research confirms that vaccination significantly boosts business confidence and mitigates the negative effects of lockdowns.
Minh Phuoc‐Bao Tran, Nhung Thi‐Hong Vu, Duc Hong Vo   +2 more
wiley   +1 more source

Investigation of multi-ion heat and neoclassical transport using new edge main ion measurements at ASDEX Upgrade

Nuclear Fusion
This study provides new insights into multi-ion heat transport and the validation of neoclassical theory at the edge of H-mode plasmas. Utilizing a high-resolution main ion charge exchange recombination spectroscopy system, the first characterization of ...
P. Cano-Megias, E. Viezzer, R.M. McDermott, C. Angioni, E. Fable, A. Jansen van Vuuren, M. Cavedon, D.J. Cruz-Zabala, R. Dux, P. Manas, J. P.-Gonzalez, R. Takacs, C.F.B. Zimmermann, R. Chacartegui, the ASDEX Upgrade Team, the EUROfusion Tokamak Exploitation Team   +15 more
doaj   +1 more source

Role of pinch in Argon impurity transport in ohmic discharges of Aditya-U Tokamak. [PDF]

Sci Rep, 2023
Shah K, Ghosh J, Patel S, Chowdhuri MB, Jadeja KA, Shukla G, Macwan T, Kumar A, Dolui S, Singh K, Tanna RL, Patel KM, Dey R, Manchanda R, Ramaiya N, Kumar R, Aich S, Yadava N, Purohit S, Gupta MK, Nagora UC, Pathak SK, Atrey PK, Mayya KBK.   +23 more
europepmc   +1 more source

Risk Disclosure as a Resilience Tool in Central Governments: Assessing Current Practices in the United Kingdom and the Netherlands

Financial Accountability &Management, EarlyView.
ABSTRACT To be resilient, governments must quickly adapt their policies and working methods to new and uncertain situations. This article examines whether risk disclosure, as part of the anticipatory capacities of these organizations, can help identify and mitigate vulnerabilities.
Ekaterina Svetlova, Tjerk Budding, Silvia Pazzi   +2 more
wiley   +1 more source

Reduced electrostatic turbulence in the quasi-isodynamic stellarator configuration CIEMAT-QI4

Nuclear Fusion
CIEMAT-QI4 is a quasi-isodynamic stellarator configuration that simultaneously features very good fast-ion confinement in a broad range of β values, low neoclassical transport and bootstrap current, and ideal magnetohydrodynamic stability up to $\beta ...
J.M. García-Regaña, I. Calvo, E. Sánchez, H. Thienpondt, J.L. Velasco, J.A. Capitán   +5 more
doaj   +1 more source

STUDY OF L–H TRANSITION AND PEDESTAL WIDTH BASED ON TWO-FIELD BIFURCATION AND FIXED POINT CONCEPTS

Acta Polytechnica, 2015
The L–H transition in magnetic confinement plasmas is investigated on the basis of concepts of two-field bifurcation and fixed-point stability. A set of heat and particle transport equations with both neoclassical and anomalous effects included is used ...
Boonyarit Chatthong, Thawatchai Onjun
doaj   +1 more source

Mergers and Acquisitions as Navigators of Climate Policy Shocks: Evidence from the NOx Budget Trading Program

Financial Management, EarlyView.
ABSTRACT We examine how mergers and acquisitions (M&As) enable firms to adapt to climate policy shocks. Exploiting the adoption of the Nitrogen Oxides (NOx) Budget Trading Program (NBP) across US states as an exogenous shock, we find that firms with NOx‐emitting plants subject to the NBP are more likely to engage in M&As, particularly through vertical ...
Samer Adra, Yang Gao, Malika Hamadi, Jiayi Yuan   +3 more
wiley   +1 more source

Confinement Efficiency and Stability of a Toroidal Magnetized Plasma Device with Sheared Magnetic Field Lines using an Internal Ring Conductor

, 2012
In a new toroidal laboratory plasma device including a poloidal magnetic field created by an internal circular conductor, the confinement efficiency of the magnetized plasma and the turbulence level are studied in different situations. The plasma density
Pierre, Thiery
core   +5 more sources