Is it worth fighting a big war, in the name of an abstraction like sovereignty? 在主权之类抽象概念的名义下打一场大战是否值得呢?
With change of energy and time, the acceleration generated by explosive stress wave on a wall demonstrates non-stationary characteristics. 爆炸应力波对岩土洞壁所产生的加速度随着能量和时间的变化表现出非平稳的特性。
The Calculation of Torsional Acceleration of Seismic Wave and the Application in Frame Structure 地震波扭转加速度的计算及其在框架结构中的应用
Study on the production and acceleration of shock wave induced by combustible suspension dust 可燃悬浮粉尘燃烧诱导激波及其加速过程研究
Ion acceleration by shock wave induced by laser plasma interaction 强激光与稠密等离子体作用引起的冲击波加速离子的研究
The results agree with those obtained by the Lorentz transformation when the acceleration of the moving plasma wave frame equals zero. 当等离子体波参考系的加速度为零时,所得结果与Lorentz变换结果一致。
Effect of Acceleration Rotation Wave Shape on the Ekman Flow during ACRT Process 加速旋转波形对ACRT过程中Ekman流场的影响
Two acceleration time-history curves Tianjin wave and EL-Centro wave are chosen to analyze seismic time-history response by using uniform excitation and traveling-wave excitation. 选用天津波和EL-Centro波两种加速度时程曲线,采用一致激励和行波激励分别进行地震时程响应分析。
The paper first revolves around how to get true effective penetration acceleration, analyzed the process of penetration, the information included in the penetrating acceleration, the influence of stress wave spread to penetration acceleration, and the sensor selection etc. 本文围绕如何获取真实有效的侵彻加速度,分析了侵彻过程、侵彻加速度信号组成、应力波传播对侵彻加速度信号的影响和传感器选取等因素。
And this is a positive feedback acceleration process till the stress destroy wave is formed, and results in the quick failure of the coal seem and the coal and gas outburst. 这是一个正反馈的加速过程,最后水平载荷形成应力破坏波,造成煤体的快速拉裂破坏,形成煤与瓦斯突出。
The relationship between the difference of seismic peak acceleration and the difference of S wave velocity is approximately in a linear state. 地震动峰值加速度的差异与剪切波速的差异近似呈线性关系。
Under the same acceleration peak value but different wave forms, the vertical seismic responses are different. 在相同加速度但不同的地震波作用下,结构的竖向地震反应不同。
In order to improve radiation from waveguide TM_ 01 mode, plate lens is laid at aperture plane of conical horn, phasic difference of 180 degree is produced along orthogonal fields for the acceleration of wave between plates. 为了改善圆波导TM01模的辐射特性,在圆锥喇叭口径处加平行板透镜,利用平行板的加速特性使正交方向的场产生180°的相位差。
Light propagating in moving media in which three different light interactions with plasmas are included is studied by using the effective metric theory in the first part: firstly photon acceleration by the electronic plasma wave induced by strong laser pulses is examined; 第一部分应用光与运动介质相互作用的有效度规理论研究了三个不同的光与等离子体相互作用的系统:首先研究了激光脉冲尾随由强激光激发的电子等离子体波时所获得的加速;
Finally, the influence of resonant Self-focusing on particle acceleration in beat wave accelerator also be discussed. 最后还讨论了共振自聚焦对拍频波加速器中粒子加速过程的影响。
In this work the propagation of acceleration wave in porous media is investigated. 讨论多孔介质中加速度波的传播问题。
Finally, in the context of homogeneous weak discontinuity, the evolution of the amplitudes of acceleration wave is analyzed. 最后考察了均匀弱间断情况下加速度波的波幅演化规律。
The horizontal hydrodynamic force of deep sea lifting pipe in the system of Polymetallic nodule is influenced not only by systemic parameters, velocity and acceleration of wave and current, but also by time and the depth below ocean surface. 大洋多金属结核深海采矿扬矿管所受水平液动力不仅受系统参数、海浪和海流的速度和加速度的影响,而且还随着时间和水深等因素而变化。
After rectified, the peak value acceleration of horizontal earthquake wave turned into 400 gal which corresponded to big earthquake of the eighth degree area. 水平波的峰值加速度调整到400gal,这相当于8度地区的大震。这样调整的主要目的是为了研究大震情况下,竖向地震对结构的水平抗震性能的影响。
It has constanted horizontal acceleration seismic wave and Ei-Centro 1940 earthquake, analog calculations to dam body semi-infinite reservoir and confined dam respectively are done. 针对恒定水平加速度地震波和Ei&Centro1940地震,分别对半无限水库和有限水库的坝体荷载响应进行模拟计算。
The best choice of the acceleration cavity for heavy ion superconducting accelerator is quarter wave resonator ( QWR). 用于重离子超导加速器的低β加速腔的最佳选择是四分之一波长谐振腔(QWR)。
The acquired characteristic curves of displacement, speed and acceleration time change of dam bodies subjected to seismic wave and their nearby stratum assume a definite meaning for designing of dam body, the choice of foundation material, choice of foundation depth. 得到了一些地震波作用下坝体及附近地层岩石的位移、速度、加速度随时间变化的特征曲线,对坝体的设计、材料的选择以及基础深度的选择具有一定的意义。
Relativistically stochastic acceleration of electrons in plasma driven by a standing wave 驻波驱动的等离子体电子相对论随机加速
Acceleration of relativistic electrons by turbulent Alfven wave in radio jets 射电喷流中湍动阿耳芬波对相对论电子的加速
Direct tensile, acceleration, and shock wave tests belong to the tensile test group, whereas adhesive tape, direct shear, peel and scratch tests belong to the shear test group. 直接拉离、加速和冲击波等方法属于拉力法,而胶带、直接剪切、剥离和划痕等方法属于剪切法。
As the global industrial upgrading and the economic integral whole turn of acceleration, a world wave tide of M& A will roll up in lately. 随着全球产业升级和经济一体化的加速,新一轮全球并购浪潮将席卷而至。
Displacement and/ or velocity often be inputted in wave motion explicit FEM at present, while acceleration record directly reflects original information of seismic wave. 目前波动显式有限元分析多以位移和(或)速度作为输入,而加速度记录更直接地保留了地震波的原始信息。
Seismic calculation using the time-history analysis, spectrum analysis and earthquake, in the process of calculation into larger acceleration EL-CENTRO wave, the better to ensure the safety of structure. 进行抗震计算时使用时程分析法和地震谱分析法,在计算过程中读入振动加速度较大的EL&CENTRO波,较好的保证了结构的安全性。
Those are: laser wakefield acceleration, beat wave acceleration, inverse bremsstrahlung electron acceleration, inverse Cherenkov acceleration and so on. 现有的电子加速机制有:激光尾场加速、拍波加速、逆韧制辐射加速、逆契仑柯夫加速等。
In this new century, with the development of domestic market economy, the acceleration of economic globalization and the merger wave rising ceaselessly, reform and development of accounting system and tax system in the field of business combination are also accelerating. 步入新世纪以来,伴随着国内市场经济的发展、经济全球化进程的加快以及企业合并浪潮的不断掀起,企业合并领域的会计制度与税收制度也在加快改革与发展的步伐。