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- pressure wave reflection 压力波反射
- Cylindrical Wave Reflection and Antireflection at Media Interfaces[J]. 引用该论文 石玉珠;彭奎;沈群;刘宏俊.
- Abstract: This paper presents a terahertz (THz) wave reflection imaging system based on Backward Wave Oscillator (BWO). 中文摘要: 返波振荡器(BWO)作为一种新型高功率连续太赫兹源，具有广泛的应用前景。
- The afterflow represents a production of kinetic energy which becomes converted into a pressure wave when the outward flow of water is reversed. 残余塑性流动代表在外向水流返回时动能变为压力波的一种结果。
- When the CB content is over 6.0 vol%, the wave reflection on the surface of the material increases and so the wave absorbing performance decreases. 材料的吸波性能存在一个极限值;当炭黑含量超过6.;0 vol%25时;入射电磁波在材料表面的反射增强;复合材料的吸波性能会下降。
- And low permeability reservoir is slower than mid-high permeability reservoir in pressure wave propa... 低渗透油藏比中高渗透油藏的压力波传播速度慢。
- The machanism of the effect of MCFs and dissipative media was analysed.Finally, an EM wave reflection decay model was derived from field analysis. 分析和讨论镀金属碳纤维 和电磁损耗介质对复合材料电磁参数和反射性能的影响及作用机理；
- The data of the percussion pressure wave, the rat's b lood pressure and heart rate were recorded. 实验中由计算机记录冲击时脑承受的压力曲线并描记大鼠血压和心率变化。
- The blast furnace raceway formation under the intensive coal injection by measurement of micro wave reflection gunned through a tuyere is discussed. 通过利用风口测量枪进行的微波反射测量方法讨论了大煤粉喷吹量条件下高炉风口回旋区的形成。
- The results indicted that the deformation range by the first pressure wave is proporational with impact velocity. 研究结果表明：泡沫铝试样在不同的冲击速度加载下变形量大小不同，随着冲击速度的增大，试样达到该冲击速度下的最大变形所需的压缩次数（冲击波的反射、透射过程）减少。
- In order to strengthen maneuverability of fighter aircrafts and decrease rader wave reflection a tailless fighter aircraft has become one of new research directions. 无人驾驶战斗机将是未来战斗机发展的可能方向,为了隐身及其他目的,飞翼布局是一种可供选择的形式。
- The afterflow represents a production of kinetic energy which becomes convered into a pressure wave when the outward flow of water is reversed. 残余塑性流动代表在外向水流返回时动能变为压力波的一种结果。
- Abstract: Two ignition methods are investigated to reduce pressure wave in large caliber gun propelling charge with high loading density. 文摘:研究了两种能降低某大口径火炮高装填密度发射装药的膛内压力波的点传火方案。
- Two ignition methods are investigated to reduce pressure wave in large caliber gun propelling charge with high loading density. 研究了两种能降低某大口径火炮高装填密度发射装药的膛内压力波的点传火方案。
- The conventional formula of the investigation radius is defined by the peak time of pressure wave,which is mainly on theory. 认为传统的探测半径计算公式是通过压力波的波峰进行定义的,其理论性很强。
- Research shows that stress wave reflection method can not only detect the anchoring position and anchoring length, but also indirectly detect the bolt anchoring force through anchor wave velocity. 研究结果表明，应力波反射法不仅可以检测锚杆的锚固位置和锚固长度，而且能由锚固体波速间接检测锚杆的锚固力大小。
- Fluid is conveied to bit nozzel through drill string from pump is a transient state flowing with pressure wave, which makes the fluid jetted out from nozzel has certain pulsation. 从钻井泵经过钻柱内部输送到钻头喷嘴的流体是一种瞬态流动，存在着压力行波，使从普通喷嘴射出的流体有一定程度的脉动。
- A wealth of practical data show that it is difficult to attain the aim of enhancing the resolution by starting with the increase of frequency for the method of longitudinal (P) wave reflection. 大量实际资料表明,在松散地层中纵波速度受水饱和度的影响,故采用纵波反射法,从提高频率着手难以达到提高分辨率的目的。
- The paper introduces three basic working styles of signal transmission of mud pulse MWD sys tern,pressure positive pulse, pressure negative pulse and continuous pressure wave. 介绍了泥浆脉冲随钻测量系统信号传输的3种基本工作方式:压力正脉冲、压力负脉冲和连续压力波。
- This paper introduces the principle of the test of the bond quality between steel and concrete by ultrasonic wave reflection on Single Surface, and analyzes the feasibility of the test method. 摘要根据超声检测的原理，提出了采用超声多次反射法单面检测钢-混凝土粘结界面质量，分析了该方法的可行性，综合考虑各试验参数的影响。
