索

Seventhly, a series of experiments and projects were carried out for verifying the previous theory. First, the cable force control test of reticulated shell-string structure in 2.2m×4.6m was conducted using the arithmetic presented in the paper. Second, the numerical analysis during construction, the adjustment of cable forces and the changing of cable of the Beijing North Railway Station were conducted.

为了进一步验证本文前几章有关预应力空间钢结构索张拉计算方法的正确性，本文进行了一系列的试验研究，包括：用提出的基于索原长反分析法对一2.2m×4.6m的小型张弦网壳进行索张拉成形的试验研究；对北京北站进行了模型施工过程分析、模型索张拉力的调整、换索试验研究。

The percutaneous balloon mitral valvuloplasty was performed in the patient with single thickened tendinous cordae.The valvular closed commissurotomy was performed in the patient with thickened non-calcified tendinous cordae.The ATC stereoscopic images that revealed by dynamic 3-D reconstruction technique could be not acquired in two-dimensional image technique.

结果：本组瓣膜病患者，有两组腱索增粗并钙化者及腱索稀疏与断裂者均行瓣膜置换术，仅单组腱索增粗者行瓣膜球囊扩张术，两组腱索增粗而无钙化者行瓣膜闭式分离术，动态三维重建技术展示了二维显像所不能获得的房室瓣腱索的立体图像。

Based on the structure node equations of force balance, an approach for cable pretension design is presented.

考虑到索网结构中索段数目即优化变量个数(661)较多，在分析索网结构中内部索网部分力平衡特性的基础上，给出内部索网部分预拉力的一组近似最优解。

The utility model discloses a magnetic lift device which comprises a main magnetic lift part, a rotating pole bracket, a transmission supporting saddle, a left rotating pole and a right rotating pole. A turning plate yoke device is arranged on the upper surface of the main magnetic lift part, and the turning plate yoke comprises a yoke head, a yoke head base, a constringent spring, a pulling rope as well as a rope sling. The yoke head is arranged slidingly in the hollow cavity of the yoke head base, and the constringent spring is arranged at one end inside the yoke head. One end of the pulling rope is fixedly connected with the inner end of the yoke head, while the other end is fixedly connected with the rotating pole. The rope sling is sleeved outside the pulling rope. A yoke platform matching with the lower surface of the front end of the yoke head is arranged at the tail end of a back support foot.

本实用新型公开了一种起重磁吊装置，包括磁吊主体、转杆支架、传动支座、左右转杆，在磁吊主体的上平面上还设置有翻板卡位装置，翻板卡位装置包括卡位头、卡位头座、压缩弹簧、拉索和索套；卡位头滑动设置于卡位头座内的中空腔体内，卡位头内端一侧设置有压缩弹簧；拉索的一端与卡位头内端固定连接，另一端与转杆固定连接；索套套设于拉索之外；后支脚尾端设置有与卡位头前端下平面相匹配的卡位平台；翻板转轴上套设有扭簧。

Methods Thirty patients with chronic mitral regurgitation were c lassified into three groups. Twelve patients underwent conventional MVR, 10 patients had MVR with preservation of posterior chordae tendin eae only, and 8 patients had MVR with preservation of both anterior and posterior chordae tendineae.

根据MVR的不同方式，将30例慢性二尖瓣反流患者分为3组：A组为传统的MVR即完全切除瓣叶及其腱索患者12例，B组为完全切除前叶及其腱索仅保留后叶及其腱索的MVR患者10例，C组为切除部分前叶但保留前叶腱索和后叶及其腱索的MVR患者8例。

The calculation mechanics model is used for the curtain wall decussate rope net structure, including m horizontal ropes and n vertical ropes. The balance and displacement equations, alse the potential energy and kinetic energy equations, are constituted for the points with distributive loads and tensile force after the rope net distortion. Using the theory of finite analysis method, these groups of the n horizontal ropes' 2m+5 and m vertical ropes' 2n+5 equations are founded and the numerical solution is calculated.

建立幕墙由m根横向索、n根竖向索组成的正交索网结构的计算力学模型，在网点分配荷载及预张力作用下，列出钢索变形后的平衡方程、位移方程和弹性变形位能与外力作功方程，用有限分析方法将竖向索包含n个由2m+5变元组成的非线性方程组，将横向索包含m个由2n+5变元组成的非线性方程组寻求数值解。

The tests showed that the tension of each hoop cable and radial cable distributed unevenly under various working conditions,because of the friction between hoop cable and joints.Compared with the traditional joints,using new joints in structure could make the friction between hoop cable and joints reduce obviously,and friction loss on hoop cable at joints was small.

试验表明，由于环索与节点间存在摩擦，使得各工况下结构各圈环索和斜索张力分布不均匀；与传统节点相比，采用新型节点的结构环索与节点间的摩擦大幅降低，环索预应力损失较小，预应力传递效率更高。

Taking Rong hu bridge project as the background, the paper Studies on the optimization of dead load cable tension, construct system of controlling, effect of non-linear factor, limit bearing capacity of structure and spatial stress of concrete-filled steel tubular tower and the combination of girder, which are based on the hybrid cable-stayed bridge.Asking for the maximal deformation of tower and girder to be minimized and cable permissible stress as constraint conditions, the paper tries to solve the ideal dead load cable tension by combining finite element calculation and optimize analysis.

本文以蓉湖大桥工程为背景，就混合梁斜拉桥的成桥恒载索力优化、施工监控体系、过程非线性因素影响、结构极限承载力、索塔和主梁结合部的空间应力分析等问题开展研究：关于索力的优化，是以斜拉桥索塔和梁的最大变位最小为目标，以拉索容许应力为约束条件，采用有限元计算与优化分析相结合的方法来确定斜拉桥的成桥合理恒载索力。

If upon the hearing of a claim, the claimant does not appear, the Board may strike out the claim, without prejudice, however, to the restoration of such claim by the Board, on the application of the claimant, on such terms as it may think just.

如申索人不出席申索聆讯，仲裁处可剔除该宗申索，但此举对仲裁处在申索人提出申请后，按其认为公正的条款恢复该宗申索并无影响。

Methods Bilateral spermatic veins and testis volume of 73 men with varicocele and 30 normal men were detected by Color Doppler Ultrasound,and analysed about the correlation between the spermatic vein diameter and testis volume,and the correlation of the bilateral spermatic veins;the volume change of left testis and diameter change of left spermatic vein of 23 men in the case were retrospectively analysed.

采用彩色多普勒超声对30例正常人及73例精索静脉曲张患者的双侧精索静脉及睾丸体积进行检测，分析双侧精索静脉内径之间、患侧精索静脉内径与睾丸体积之间的相关性；回顾分析其中23例患者左侧精索静脉内径及左侧睾丸体积的变化。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐