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Based on the analysis and calculation of the diametrical ratio and strss to a super high pressure cylinder , it is found that the diametrical ratio doesn t conform to the optimal design principle and the stress isn t well-distributed.

然后对某超高压缸的径比及应力进行了分析计算,发现其径比不符合最佳化设计原则,且应力分布很不均匀。

By Galerkin meshless method, the equations of motion of static rectangular membrane is established. The first ten natural frequencies of the different aspect ratios and the different pull ratios of rectangular membrane with four clamped edges, three clamped edges and one free edge, two opposite free edges and other two clamped edges were calculated. It is feasible and valid to solve the transverse vibration problem of membrane by Galerkin meshless method.

采用伽辽金无网格法,建立了矩形薄膜横向自由振动的运动方程,并对四边固支、三边固支一边自由、一对边固支另一对边自由三种边界条件下,薄膜的不同长宽比及不同单位长度拉力比作用下的矩形薄膜的前十阶固有频率进行了数值计算,结果说明伽辽金无网格法用于求解薄膜横向振动问题是切实可行的。

Then the pile-soil stress characteristics and stabilizing mechanism of the composite foundation are fully discussed. Based on the close analysis of the influence factors of the vertical bearing capacity, circular aperture extension theory is employed to establish the computing formulas for the pile vertical stress and the foundation vertical bearing capacity, respectively. Moreover, with analyzing the features of the calculation parameters such as materials of gunite mortar, jet pressure, diameter of the jet pipe, pile length, pile layout, a design theory for chemical churning pile composite foundation is proposed. Then, the variation of the pipe deformation with loads, the deformation coordination of pile and soil are studied. And methods to decide pile-soil stress ratio and the compressive modulus are developed. Meanwhile, the corresponding design method and the design parameters are proposed. In addition, studies for construction technique and quality detection of the chemical churning pile composite foundation are presented.

在此基础上深入探讨了旋喷桩的桩土受力特性及其复合地基的加固机理,从影响旋喷桩复合地基竖向承载力的因素入手,基于圆孔扩张理论给出了桩体竖向应力及旋喷桩复合地基的竖向承载力计算公式;通过对喷射浆液、喷射压力选取、喷射直径估算、桩长及桩位设计等各种计算参数的深入分析和研究,提出了一套相应的旋喷桩复合地基设计计算方法;通过计算分析,深入探讨了旋喷桩复合地基变形随荷载变化规律、桩和桩间土变形协调关系、桩土应力比及复合地基压缩模量的确定,并提出相应的设计方法和修正参数;此外,结合工程应用,对旋喷桩复合地基的施工技术及其现场质量检测方法进行了较全面的探讨。

Pneumatic muscle actuators have the highest power/weight ratio and power/volume ratio of any actuator.

气压肌肉驱动器是一种具有高功率自重比及高功率体积比的新型驱动器,因为具有这些优於传统气压驱动器的优点,近年来引起学者专家的广泛注意并投入研究。

In consideration of inflammability of alternatives is more important, the two targets including the ratio of maximum for composition, and the ratio of minimum for running space have been proposed for judging the flammability of alternatives.

为此作者首次从理论上提出了衡量混合工质运行中可燃性的内部和外部因素的指标:最大极限浓度比及最小运行空间比。

To elucidate the relationship between otolith microstructure and microchemistry and the life history events of the grey mullet Mugil cephalus in the early stage, the daily growth increments, growth check, Sr/Ca ratios and trace elements in otoliths of the juvenile mullets collected from the four estuaries from NE to SW Taiwan coast from 1996 to 2004 were examined by using the light and electron microscopes, electron probe microanalyzer and laser-ablation inductively coupled plasma mass spectrometry. A transition check was found in otoliths of all mullets.

为了阐明乌鱼耳石微细构造、微化学与其初期生活史事件之关系,本研究於西元1996年至2004年在台湾东北至西南沿岸的四个河口域进行乌鱼稚鱼的采样,然后利用光学及电子显微镜、电子微探仪及雷射熔蚀-感应偶合电浆质谱仪分析稚鱼耳石的日周轮、锶钙比及微量元素组成之变化。

The major research includes the following three points. First, using finite element method, the influence factors on propagation properties for PMF couplers are analyzed, including the shape of coupler cross-section, the taper of coupler bipyramidal and the angle deviation of the birefringent axes.

基于热-结构-电磁多物理场耦合有限元方法,分析了保偏光纤耦合器的传输特性和耦合系数在熔锥区的变化规律,从而求解耦合模方程,得到偏振光经过耦合器后的光功率分布,继而对保偏光纤耦合器的性能参数分光比、消光比及附加损耗进行理论分析。

By adjusting the angle of the primary air baffle under the mode of one baffle symmetrically arranged, one baffle dissymmetrically arranged and three baffles dissymmetrically arranged, the resistance characteristic, bias air ratio and the concentrated ratio are studied to confirm the influence of primary air baffle and separation baffles on the separation process,which is of great significance to enhance the performance of horizontal bias burner.

该文在一挡板对称布置、一挡板不对称布置、三挡板不对称布置3种不同的方式下,通过调整燃烧器一次风挡板角度,对3种布置方式下燃烧器的阻力特性、浓淡风比及浓缩比进行了研究,旨在确定一次风挡板角度与分离挡板对燃烧器浓淡分离的影响,以便提高水平浓淡燃烧器的性能。

Methods: Twenty-four rabbits were randomly divided into three groups:① the control group(group C, n=8): received sternotomy only and no ischemia;② the ischemia/reperfusion group(group I/R, n=8): the left lungs of rabbits were rendered ischemia by ligating the left pulmonary hili for 60 minutes followed by 60 minutes reperfusion;③ the edaravone group(group E, n=8): the left lungs were rendered ischemia for 60 minutes followed by 60 minutes reperfusion, and 10 mg/kg edaravone was administered intravenously 5 minutes prior to ischemia. Blood MDA and SOD were measured. Protein concentrations, WBC count, and PMN percentage in broncho-alveolar lavage fluid were determined. Samples of left lung tissue were sent for determining the left lung dry-to-wet weight ratio and evaluating the pathologic changes.

采用兔肺原位热缺血再灌注损伤模型进行研究。24只大白兔随机分为三组:①对照组(C组, n=8),开胸后不阻断肺门,静脉缓慢推注生理盐水5ml/kg;②缺血再灌注组(I/R组, n=8),左肺接受60min的缺血,然后接受60min再灌注,于缺血前5min静脉缓慢推注生理盐水5ml/kg;③依达拉奉干预组(E组, n=8),于缺血前5min静脉缓慢推注依达拉奉10mg/kg(5ml/kg),左肺接受60min的缺血,然后接受60min再灌注。120min实验结束时,留取各组动物血液标本,测定血浆丙二醛含量及超氧化物歧化酶活性;收集支气管肺泡灌洗液,检测支气管肺泡灌洗液中白细胞计数、中性粒细胞百分比及肺通透性指数;留取肺组织标本,测定肺组织湿、干重量,计算干/湿重比及行肺组织病理检查。

These animals were killed after 24 hours of treatments and instillation of meconiums. The measurements included lung tissue wet/dry ratio,lung injury score,the expression and level of AngⅡ,lung myeoperoxidase activity and TNF-α level.

模型制备后24h取材,观察其肺组织病理损伤并检测湿/干重比及进行病理评分;检测AngⅡ在肺组织的表达情况及用图像分析方法检测其含量;测定肺组织中肿瘤坏死因子-α的含量及肺匀浆髓过氧化物酶活性。

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Plunder melds and run with this jewel!

掠夺melds和运行与此宝石!

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。

When you click Save, you save the file to the host′s hard disk or server, not to your own machine.

单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。