نتایج جستجو برای: confinement pressure

تعداد نتایج: 426910  

2015
IGOR OLIVEIRA CAROLINA CARDOSO MANICA

We study the BV-α-Deconvolution model. It is a family of regularizations of the Barotropic Vorticity (BV) model that generalize the BV-α model and improve its accuracy. A both unconditionally stable and optimally convergent scheme for the BV-α-Deconvolution model is proposed and we show that it is O(α), where N is the deconvolution order, whereas the BV-α model is at most second order accurate....

2015

LLE Review, Volume 143 125 Introduction In inertial confinement fusion (ICF),1 a shell of cryogenic deuterium (D) and tritium (T) filled with DT gas is imploded with direct laser illumination (direct drive)2 or through an x-ray bath produced inside a laser-irradiated hohlraum (indirect drive).3 Energy from the laser or x ray is absorbed in the plasma near the outer surface of the target, causin...

2000
R. L. Stenzel J. M. Urrutia

The interaction of a dense discharge plasma with a weak external magnetic field has been studied experimentally. The electron pressure exceeds the field pressure and forms a magnetic hole in the plasma interior. The ions are unmagnetized, while the electrons are in a transition regime from none to full magnetization. The electron confinement changes from Boltzmann equilibrium to magnetic confin...

Journal: :Physical chemistry chemical physics : PCCP 2014
Shuanglong Chen Mingguang Yao Ye Yuan Fengxian Ma Zhaodong Liu Ran Liu Wen Cui Xue Yang Bo Liu Bo Zou Tian Cui Bingbing Liu

Iodine molecules confined in the elliptical nanochannels of AlPO4-11 crystals can only rotate in the plane passing through the major axis of the elliptical cross-section due to size confinement. This leads to different dynamic behaviors of iodine from those confined in round channels of AlPO4-5 crystals under ambient conditions. In this work, we use high pressure technology to manipulate the na...

2015
P. A. Schneider L. Barrera

A comparison of ASDEX Upgrade (AUG) discharges performed with carbon and the full tungsten wall shows that the pedestal performance at low triangularity is not altered without gas puffing. The pedestal electron pressure is the same for both wall materials as is the confinement. With the tungsten wall the natural density is higher even without an additional gas puff. In typical operation with ga...

2016
D. Devaux R. Fabbro J. Virmont

We study, in this paper, the mechanisms of generation of shock waves by a laser-induced plasma in confined geometry. Two models, analytical and numeric, have been developed to describe the laser-matter interaction. Experiments have been carried out with a neodymium glass laser at flux of 107 to 1011 GW/cm2, and pulse duration of 3 and 30 nanosecond. The plasma pressure in various configuration ...

2014
Qiong Nian Yuefeng Wang Yingling Yang Ji Li Martin Y. Zhang Jiayi Shao Liang Tang Gary J. Cheng

Synthesis of diamond, a multi-functional material, has been a challenge due to very high activation energy for transforming graphite to diamond, and therefore, has been hindering it from being potentially exploited for novel applications. In this study, we explore a new approach, namely confined pulse laser deposition (CPLD), in which nanosecond laser ablation of graphite within a confinement l...

2002
Erik Gilson Larry Grisham Pavel Kolchin Ronald C. Davidson

Philip C. Efthimion, Erik Gilson, Larry Grisham, Pavel Kolchin and Ronald C. Davidson Plasma Physics Laboratory Princeton University, Princeton, New Jersey, 08543, USA Simon Yu and B. Grant Logan Lawrence Berkeley National Laboratory University of California, Berkeley, California, 94720, USA Highly ionized plasmas are being considered as a medium for charge neutralizing heavy ion beams in order...

Journal: :Fizika i tehnika poluprovodnikov 2022

This analytical study focused on discussing the collective effects of hydrostatic pressure and temperature ground state energy for two electrons trapped in GaAs parabolic quantum dot presence a magnetic field using effective mass approximation. The electronic interaction was approximated by Johnson-Payne potential model, where its parameters were carefully chosen to match Coulomb interaction. I...

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