查询词典 mechanical

According to the need of the subject"Study on Saving Energy in House Buildings with Concrete Blocks"conveyed by Science and Technology Committee of Liaoning Province and the feasibility of constructing high-rise block buildings in the area of eight of earthquake intensity, an experimental study on the mechanical properties of the high-strength masonry panels with concrete small-size hollow blocks has been finished, and both the dynamic characteristics and the seismic behaviors of elastic and plastic state of long cantilever reinforced block shear walls have been analyzed by finite element method in this paper.

中文题名高强混凝土砌块砌体基本力学性能的试验研究及其动力分析副题名外文题名 Experimental study on mechanical properties of masonry walls with high-strength small-size concrete hollow blocks and dynamic analysis 论文作者祝英杰导师刘之洋教授学科专业结构工程研究领域\研究方向学位级别博士学位授予单位东北大学学位授予日期2001 论文页码总数158页关键词混凝土结构砌块砌体剪力墙空心砌块配筋砌块馆藏号BSLW /2003 /TU375 /1 根据辽宁省科委项目"混凝土承重砌块节能住宅体系研究"的要求以及在八度抗震设防地区建高层砌块建筑的可行性，本文对高强混凝土小型砌块砌体的力学性能进行了试验研究；利用有限元法对长悬臂配筋砌块剪力墙的动力特性和弹塑性地震反应进行了分析。

This book describes in detail for two-dimensional mechanical design and mechanical drawing software AutoCAD Mechanical 2004 various functions and to use it.

本书详尽介绍了用于二维机械设计和机械制图的软件AutoCAD Mechanical 2004的各项功能和使用方法。

Responsibilities:Specification of welding machinesProgramming and assembly Testing, quality control and de-buggingInstallation at customer site Design of metal structures and basic machine partsMachine maintenanceAble to manage 1 electrical workerAfter sales supportRequirementsCollege degree in Mechanical EngineeringAble to read and speak English CET Level 65-10 years work experienceAble to read and produce working engineering drawingsAble to solve electrical and mechanical problemsBasic understanding of welding will be an advantageMale, age 30-45Totally honest and trustworthyHigh level of maturity

工作内容：对焊接机器编制使用说明规范设计和装配焊接机器测试，调试机器以及质量控制在客户方进行机器安装设计简单的金属结构和基本机械部件机械的日常保养管理电工售后服务支持职位要求：工程学士学位大学英语6级，出色的阅读和听说能力 5-10年工作经验能够阅读生产工作的工程图纸能够解决电气和机械问题有相关焊接经验的优先男性，年龄30-45 诚实守信，成熟稳重 Mechanical Machine Engineer

Objective To compare the clinical efficiency of invasive mechanical ventilation with that of noninvasive bilevel positive ventilation in treatment of myasthenic crisis. Methods 24 patients with MC were managed with BiPAP and 16 with Ⅳ.

目的 比较无创性错落式正压通气(noninvasive bilevel positive ventilation， BiPAP)和有创式机械通气(Invasive mechanical ventilation，Ⅳ)治疗重症肌无力危象(myasthenic crisis， MC)的临床疗效。

In this paper, two assemblies of special test equipments have been designed and fabricated by authors in our laboratory: namely Catalyst Molding Process Analyzer and Catalyst Mechanical Process Tester. These new skills are developed for the dynamic studies on whole mold forming process and crushing process of Fe-Cr WGHS catalyst pellet. Based on the orthogonal experimental design, the effects of some factors during the forming process of solid catalyst, such as predensification proportion, calcination time, calcination temperature and content of graphite on the mechanical strength of catalyst pellets are systematically examined, and the molding conditions have been optimized. Based on the experimental data, the relationship between catalyst density and forming pressure are educed, and the physical significances of some related parameters are described. The parameter of macro scopic elastic moduls has been suggested to character the mechanical properties of molding catalyst. The effects of molding pressure on mechanical properties of catalyst pellets are discussed, and results show that there exists a optimal molding pressure for the ideal mechanical properties: when over-high or over-low pressure is applied, the specific surface area and side crushing strength of catalyst pellets will decreased. The "rebound effect" will be undermined by the unsuitable pressure maintain process, resulting in the apparent decrease of mechanical strength of catalyst pellets.

本研究通过自行设计制造的催化剂模压成型过程分析仪（Catalyst Molding Process Analyzer， CMPA）和催化剂力学性质测试仪（Catalyst Mechanical Properties Tester， CMPT），以Fe-Cr系高温变换催化剂片剂为研究对象，对成型过程和受压破碎过程提供了全过程动态研究的新手段；本研究利用正交实验设计方法考察了固体催化剂成型过程中诸因素（包含预密致比例、煅烧时间、煅烧温度和石墨含量等）对催化剂成型体强度的影响，并对成型条件进行了优化；根据实验结果，关联确定了固体催化剂成型过程中的密度－压力关系式，并对方程中诸因子的物理意义进行了描述；提出了一种利用宏观弹性模量来表征成型催化剂的力学性质的方法；研究讨论了成型压力对催化剂成型体强度性质的影响，结果表明：对于催化剂成型体的强度和比表面性质，成型压力存在着一个最佳值，过高的成型压力会导致比表面积和侧压强度的降低；不适当的成型压力的维持时间会破坏&压力回弹&作用，造成催化剂成型体的机械强度明显降低。

As MEMS (Micro Electro-Mechanical Systems) technology progresses rapidly, the synergism between MEMS and biomedical technology becomes closer than ever before. When the uTAS was introduced in the last two decades, many microfluidic chips, microelectrodes, and microreactors are being studied for drug detection, environment detection, gene analysis etc. Due to its small volume, low pollution, low consumable and good portability, uTAS plays a very important role in biomedical, biochemical, environment engineering fields.

随着MEMS(Micro Electro-Mechanical System，微机电系统)制造技术的不断发展，生物医学与其之间的联系越来越紧密，自上世纪90年代初提出uTAS(Micro Total Analysis System，微全分析系统)之后，各种各样的微流控芯片、微反应器、微电极、微分离器等便大量涌现，广泛应用于药物检测、环境监测、基因分析等诸多领域中，并且由于其试剂消耗量少、检测效率高、环境污染小、体积小、易于携带等优点，在生物医学、化学、环境工程等领域受到越来越多的重视。

In this study a 50 kilotons industrial-scale ALR has been designed based on the safety criteria of high-pressure tank regulations in the handbook of the American Society of Mechanical Engineers.

本研究依据美国国家标准American Society of Mechanical Engineers规范设计，符合压力容器安全规范的50吨工业量产级气举式生物反应器的机械设计。

Magnetism is, ultimately, the result of a quantum-mechanical property known as spin.

最终，磁性产生于由自转的量子力学特性（quantum-mechanical property）。

Of course, it is also possible to use money to motivate people to do computing tasks, as in Amazon's Mechanical Turk project, which pays participants a few cents to complete simple tasks such as categorising websites for potential advertisers.

当然，金钱同样能用来驱使人进行计算任务，正如亚马逊的Mechanical Turk项目（其名称来自于18世纪一种名为&The Turkwhich&的自动象棋机设备）。参与者完成一些简单的任务，例如为潜在的广告商对一些网页进行分类，就可以获得若干美分。

Objective In order to improve biomechanics compatibilities of implant materials, the effect of SMAT process on mechanical properties of pure Ti has been studied.

目的 为改善植入材料生物力学相容性，探讨表曲机械研磨处理(Surface mechanical Attrition Treatment， SMAT)对纯钛的力学性能影响。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。