Kinetic study of E ′ center formed by radiation with low energy particles in high purity silica 高纯硅低能粒子辐照E′色心形成动力学研究
During the spring and summer prior to the mature El Nino, the 30~ 60 day oscillation in the western Pacific is very active, its kinetic energy is clearly increased and the anomalous center of kinetic energy gradually propagates eastward. 成熟之前的春夏季,热带西太平洋的30~60天振荡异常活跃,其动能明显增加且逐渐东移;在曰Nino成熟以后,热带西太平洋大气30~60天低频振荡迅速减弱。
The kinetic model was successfully applied to quantitatively calculate the variation of active center concentration with time, and three periods including sluggish period, increasing period and declining period, were observed. 并应用该模型定量计算出活性中心浓度,发现活性中心浓度随反应分三个阶段变化:迟滞期、增长期和衰减期。
The variation of velocity, temperature, turbulent kinetic energy and its dissipation on the surface of the flow were analyzed. The balance of the momentum and turbulent kinetic energy equations along the eddy center section were illustrated. 分析了水面上流速、温度、湍动能及其耗散率变化规律,对涡心断面上的动量方程和湍动能平衡进行了研究。
Analysing in the view of molecular kinetic theory, paste flowability is a shift of molecular mass center by the jump of polymer chain segment, and it affects the mass-transfer directly. 从分子运动角度分析,糊料流动是高聚物大分子链段协同跳跃而实现整个分子质量中心位移,对传质具有直接影响。
During the compression stroke the turbulence kinetic energy decreases due to the dissipation effect, while the turbulence kinetic energy in the center of the cylinder increases as a result of the squish effect. 缸内平均湍动能强度在进气冲程中总体呈先增大后减小的趋势,压缩冲程中耗散作用使湍动能降低,但挤流作用使气缸中部的湍动能升高;
The electron cyclotron resonance maser with rectangular waveguide has been studied systematically by means of the kinetic theory of ECRM based on the guiding center coordinate system developed by author previously. 本文系统地研究矩形波导电子回旋脉塞。文中采用作者提出并发展的电子回旋中心坐标系中场的局部展开为基础的方法,给出了矩形波导电子回旋脉塞的动力学理论。
This theorem is deduced directly from Newton Laws and can be applied to various kinds of kinetic equations used in plane motion of rigid body: moment about fixed axis, center of mass, instantaneous acceleration center, some particular instantaneous velocity center and arbitrary moving point. 由牛顿定律直接导出此定理,并给出此定理用于刚体平面运动的各种动力学方程:矩心为定轴、质心、加速度瞬心、特殊速度瞬心、以及任意动点。
Action force study of cam mechanism with kinetic instantaneous center straight moving and swing follow 动瞬心直动-摆动从动件凸轮机构的受力分析
The kinetic theory based on the guiding center coordinate system was presented and advanced first in 1977 by author. 以电子回旋中心坐标系中场的局部展开为基础的电子回旋谐振受激辐射(脉塞)的动力学理论,是作者于1977年提出的。
The kinetic equations of crustaceous centroid, instantaneous center and its mesh line of coupling under the condition of misalignment are established. 建立了在不对中状态下联轴器外壳质心、瞬心以及啮合线的运动方程;
There are two relatively high areas of turbulent kinetic energy and dissipation for the downstream region. One area is near the spout and the other is in the vortex center. The position of maximum turbulent kinetic energy lags behind the vortex center in recirculation region. 对湍动能及其耗散率分布的分析可以得到,在喷口下游有两个相对较高的区域,一个在喷口附近,一个在回流区内,回流区内湍动能最大值存在滞后的现象。