国家自然科学基金(10973043)

作品数：7被引量：6H指数：2
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基于分子弹性碰撞的大气声波衰减模型
《河北师范大学学报（自然科学版）》2014年第4期367-371,共5页李兵 吴德金 
国家自然科学基金(10973043)
提出了一组考虑分子弹性碰撞的干空气-水汽双流体方程,利用该方程研究了水汽对大气声波衰减的影响.结果表明,当声波频率远低于弹性碰撞频率时衰减系数对水汽含量不敏感,越靠近弹性碰撞频率水汽含量的影响越明显;对于某一频率的声波衰减...
关键词：双流体方程 大气声波 弹性碰撞 衰减 
Effects of inelastic collisions on Alfvn waves in partially ionized plasmas被引量：1
《Chinese Science Bulletin》2014年第8期740-746,共7页Bing Li Ling Chen Dejin Wu 
supported by the National Natural Science Foundation of China(10973043 and 41074107);National Basic Research Program of China(2006CB806302);Chinese Academy of Sciences(KJCX2-YW-T04)
Based on a three-component description of partially ionized plasmas(i.e.,electrons,ions,and neutral atoms),effects of inelastic collisions between ions(neutrals)and electrons on Alfve′n waves(AWs)in a partially ioniz...
关键词：非弹性碰撞 等离子体 阿尔芬波 电离度 碰撞频率 中性原子 碰撞参数 AWS 
Basic Plasma Processes in Solar-Terrestrial Activities被引量：2
《Chinese Science Bulletin》2012年第12期1353-1356,共4页WU DeJin FENG HengQiang 
supported by the National Natural Science Foundation of China(10973043 and 41074107);the National Basic Research Program of China(2011CB811402)
Within the known universe,more than 99%of all observable matter is plasma,a state often highly dynamic and far from thermal,as well as mechanical,equilibrium.In particular,for our own solar-terrestrial system,various ...
关键词：等离子体过程 太阳能 日冕物质抛射 行星际磁云 地面 等离子体加热 地球系统 空间环境 
On theories of solar type Ⅲ radio bursts
《Chinese Science Bulletin》2012年第12期1357-1361,共5页WU ChingSheng 
supported by the National Natural Science Foundation of China(10973043and41074107);the National Basic Research Program of China(2011CB811402);supported in part by the National Central University in Taiwan,China
In solar radiophysics,many theories for type Ⅲ bursts have been proposed during the past 60 years.Almost all these theories are based on the plasma hypothesis,which assumes that(i)the radiation is mainly generated by...
关键词：太阳能 射电爆发 Langmuir波 等离子体频率 辐射频率 二次谐波 物理学 无线电 
Euler potentials'discontinuity in the presence of field line-aligned currents
《Chinese Science Bulletin》2012年第12期1436-1437,共2页HUANG TianSen WU DeJin 
supported by the National Natural Science Foundation of China(10973043 and 41074107);the National Basic Research Program of China(2011CB811402)
Since their use in the study of charged particle motion in the 1960s,Euler potentials(α ,β)have been widely employed as magnetic field coordinates in both space plasma and fusion plasma studies.People related them t...
关键词：磁力线 欧拉 电流 连续性 对齐 聚变等离子体 空间等离子体 面积元素 
Exact solutions of dispersion equation for MHD waves with short-wavelength modification被引量：4
《Chinese Science Bulletin》2011年第10期955-961,共7页CHEN Ling WU DeJin 
supported by the National Natural Science Foundation of China(10973043,41074107);National Basic Research Program of China(2011CB811402)
Dispersive magnetohydrodynamic (MHD) waves with short-wavelength modification have an important role in transforming energy from waves into particles.In this paper,based on the two-fluid mode,a dispersion equation,inc...
关键词：色散方程 短波长 修改 精确解 D波 传播方向 流体模式 MHD 
Electromagnetic ion-cyclotron instability driven by combined loss-cone and temperature anisotropy distribution of suprathermal ions
《Chinese Science Bulletin》2011年第3期257-262,共6页HUA YuePing WU DeJin WANG DeYu 
supported by the National Natural Science Foundation of China (10973043,41074107);National Basic Research Program of China (2011CB811402)
Electromagnetic ion cyclotron (EMIC) waves,particularly their generation and excitation mechanisms,have been a subject of wide interest because of their potential importance in ion acceleration and heating.In this wor...
关键词：离子回旋波 各向异性分布 热离子 不稳定性 温度 电磁 驱动 激励机制 
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