Study on the Bottom Hole Pressure Properties of the Oscillating Pulse Jet-Nozzled Bit 振荡脉冲射流喷嘴钻头井底压力特性研究
R. motion sensor can get jammed with an oscillating heat pulse. Political passion and prejudice should have no part. 这种传感器可以被振荡的热脉冲干扰不应当受到政治热情或偏见的干扰。
A numerical model for simulating the oscillating flow characteristics in a high frequency miniature pulse tube refrigerator was developed. 利用数值方法模拟了高频微型同轴脉冲管制冷机内部气流交变流动和换热过程。
It is concluded that as second order dispersion compensation can avoid pulse broadening, third order dispersion compensation not only can avoid pulse broadening, but also eliminate pulse edge ′ s oscillating and temporal shift of pulse peak. 结果表明,与二阶色散补偿能消除脉冲展宽一样,三阶色散补偿不仅能防止脉冲展宽,而且也能有效地消除脉冲边沿部的振荡结构和脉冲峰的时移。
The simulation analysis and experimental study on the interaction of a discrete vortex with an impinging edge in oscillating cavity of high velocity oscillation pulse jet 高速振荡脉冲射流振荡腔内涡旋-碰撞壁相互作用的模拟分析与实验
Experimental study of the oscillating flow characteristics for regenerator in high frequency pulse tube refrigerator& part 3: theoretical analysis and experimental results 高频脉冲管制冷机交变蓄冷器流动阻力特性实验研究&第三部分:理论分析与实验结果
Pulse combustion drying is a novel, efficient drying method which makes use of a strong oscillating flow field with high temperature caused by a pulse combustor to dry materials. 脉动燃烧干燥是一种新型、高效干燥技术,是利用脉动燃烧产生的高温、高速振荡气流对物料进行干燥的。
Experimental study of the oscillating flow characteristics in a pulse tube refrigerator part ⅱ. analysis and discussion of experimental results 脉冲管制冷机内部交变流动过程实验研究第二部分实验结果分析与讨论
Experimental Study on Fluid Self-control Oscillating Pulse Combustor 流体自控振荡脉冲燃烧器的实验研究
Illustrates that the micro stepping driving is an effective method for improving the resolving power and eliminating the oscillating of low frequency. The pulse width modulated micro stepping of fixed frequency is presented, which resolves the technical question of low efficiency. 从理论上阐明步进电机细分驱动是提高步进电机分辨率和消除低频振荡的有效办法,作者提出的定频脉宽调制细分驱动很好解决了效率低的技术问题。
On the basis of self oscillating pulse water jet and pre mixed abrasive water jet, a new type abrasive jet, self oscillating abrasive water jet ( SOAWJ), is put forward. 自激振荡磨料射流是在自激振荡脉冲射流和前混合磨料射流基础上,提出的新型射流。
In this paper, the geometric size of the oscillating chamber of self-exciting oscillation pulse nozzle is optimized. It is found that the influence of the length of interior chamber on oscillation effect is greater than its diameter. 本文对自激振荡脉冲喷嘴振荡腔的几何尺寸进行寻优,发现腔室内腔长的几何尺寸对振荡效果的影响大于腔径的影响;
Two important characteristics of the device are as follows: ① The flow can increase of itself and ② an oscillating pulse efflux can form and the downhole hydraulic energy can be effectively utilized. 装置的两个重要特征是:第一是可自增流量,第二可形成它激振荡脉冲射流,有效地利用了井下水力能量。
A study on high-frequency oscillating pulse arc starter 脉冲式高频振荡引弧器的研究