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叉式
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     ADAMS/view Application of Conforming Key Parameters in Hydraulic Fork Lifting Platform
     ADAMS/view在剪叉式液压升降平台关键参数确定上的应用
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     The performance of single-crystal LaB_6 cathode was examined by measuring thebrightness and current stability under the same conditions as for the conventional Whairpin cathode. The result shows that the present LaB_6 cathode provides not only highbrightness of 2×l0~5A/cm~2. str.
     为了检查LaB_6单晶阴极的性能,在同样的条件下测量了常规发叉式钨丝阴极的亮度和电流稳定度,结果表明:LaB_6阴极不仅亮度高(20kV时,2×10~5A/cm~2·str.)
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     Finite element analysis on the ring cross joint
     环叉式万向节有限元分析
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     Modeling and key parameters study for scissors elevating platform
     剪叉式升降平台建模及关键参数研究
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     The Analysis and Design of Swinging Fork ALT-ALT Mounting Optic-Electronic Satellite Tracker
     摆动叉式ALT-ALT光电人卫跟踪仪分析与设计
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     Series of forked suturing device matching multiple surgical needle
     多针系列缝合器
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     CAT of Dynamic Behavior of FrontFork Suspension
     前悬架动态特性的计算机辅助测试
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     KNIFE & FORK
     刀与
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     Evaporative Condenser
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A method for solving large sparse systems with positive definite matrices named D. S. P., is presented. This direct method is an improved version of the LDLT decomposition. It can be applied to the, cases of various right hand sides. It's suitable for matrix with large band,and can save both storages and computing time. As compared with,our method can overcome the difficulty about "Super-Segment" which appears when the band is too wide somewhere. In addition, the coupling of this method with the idea of substucture...

A method for solving large sparse systems with positive definite matrices named D. S. P., is presented. This direct method is an improved version of the LDLT decomposition. It can be applied to the, cases of various right hand sides. It's suitable for matrix with large band,and can save both storages and computing time. As compared with,our method can overcome the difficulty about "Super-Segment" which appears when the band is too wide somewhere. In addition, the coupling of this method with the idea of substucture in F. E.M will be more efficient in dealing with the complicated structure which has branches.

本文提出了一种求解大型线代数方程(正定)组集的直接解法,称为分段、分片解法(D.S.P)。它是基于LDL~T分解的一种改进算法,可用于含多组右端向量的方程集,并适用于大带宽矩阵,可兼顾节省计算机容量与时间。与文[1]、[2]相比,本解法用分片处理克服了带宽过大时引起的所谓“超段”问题;并提出与子结构法偶合,以有效地处理多叉式结构。

In this paper, we advanced and designed a mechanical resonant antenna, which is a tuning fork with collective mass, for detecting gravitational radiation from Vela pulsar. And showed that the sensitivity of antenna can be increased by the method of accumulation signal because the gravitational radiation signal from Vela pulsar is a continuous and monochromatic signal. Last, the parameters of antenna are given, the sensitivity of which can come up to gravitational radiation intensity from Vela pulsar which is...

In this paper, we advanced and designed a mechanical resonant antenna, which is a tuning fork with collective mass, for detecting gravitational radiation from Vela pulsar. And showed that the sensitivity of antenna can be increased by the method of accumulation signal because the gravitational radiation signal from Vela pulsar is a continuous and monochromatic signal. Last, the parameters of antenna are given, the sensitivity of which can come up to gravitational radiation intensity from Vela pulsar which is estimated by the present theory.

本文提出并计算了一种接收Vela星引力辐射的集中质量音叉式机械谐振型低频天线。指出,由于Vela星引力波信号的连续性和单色性,可以采用信号积累方法提高接收灵敏度。最后给出了灵敏度可以达到目前理论估计的Vela星引力辐射强度的天线参数。此种天线也适用于其他低频引力波探测。

In this paper, we improve the model of the tuning fork antenna with collective mass, by developing a two-degree of freedom model to a three-degree of freedom one. Finally, the, experimental results of a prototype antenna are given.

本文将文献[1]提出的集中质量音叉式引力波天线的二自由度模型改进为三自由度模型,并给出了模型天线的实验结果。

 
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