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STRUCTURE: Titanium and composites used extensively, with particular emphasis on corrosion resistance; fully articulated three-blade coaxial contrarotatmg rotors have all-composites blades with carbon fibre and glass fibre main spars, pockets (13 per blade) of Kevlar-type material, and filler similar to Nomex; blades have non-symmetrical aerofoil section; each has ground-adjustable tab; each lower blade carries adjustable vibration damper, comprising two dependent weights, on root section, with further vibration dampers in fuselage; tip light on each upper blade; blades fold manually outboard of all control mechanisms, to folded width within track of main landing gear; rotor hub is 50% titaniuin/50% steel; rotor brake standard; all-metal fuselage; composites tailcone; fixed incidence tailplane, elevators, fins and rudders have aluminium alloy structure, composites skins; fins toe inward approximately 25°; fixed leading-edge slat on each fin prevents airflow over fin stalling in crosswinds or at high yaw angles.

结构:钛和复合材料广泛使用,耐腐蚀性能与特别强调,充分阐明三叶片转子同轴contrarotatmg有碳纤维和玻璃纤维的主要棒材全复合材料桨叶,口袋(每刀片13)凯夫拉型材料,类似的Nomex纤维填料;叶片非对称机翼部分,每有地面可调选项卡,每降低叶片振动阻尼器进行调节,包括两部分依赖重根,在机身进一步减振装置;小费每个刀片上轻;刀片倍手动舷外所有控制机制,折叠宽度内的主起落架的轨道;转子中心为50%titaniuin/50%钢;转子制动标准;全金属机身,复合材料tailcone,固定发生机尾,电梯,蛙鞋和方向舵的铝合金结构,复合材料的皮肤;鳍鳍在每个脚趾向内约25 °;固定领先的板式翅片防止了侧风或气流停滞在高偏航角度。

Observe the effect of Fuling Gancao Decoction on gastric liquid emptying and content of nitric oxide and acetylcholine esteras in the gastric fundus,antrum and duodenal tissu of functional dyspepsia rats and investigate the mechanism.1 Reference reviewThe reference review discussed the source of disease name of TCM for FD,etiology and pathogenesis of TCM,selection of therapeutic methods by different stages or according to the differential syndrome diagnosis,advance on the clinical and experimental research as well as the problems lying in the research of TCM and corresponding strategies.We also have summarized the recent research progresses on the FD.In the meanwhile,we further exploited the pathologic characteristics,diagnosis and treatment of FD;summarized etiology and pathogenesis of TCM for FD and application of Classical Prescriptions in clinical and experimental study;Collected and arranged the Literatures and summarized the recent research progresses of Fuling Gancao Decoction;Finally, collected and arranged the literatures of proved cases and clinical experiences of Fuling Gancao Decoction.2 Theoretical studyThe Theoretical study first discussed the source of TCM for stomach deficiency and congestion of fluid-retention in syndromes of FD;Secondly, summarized the indications of Fuling Gancao Decoction,that is:①epigastric throb,②cold hands and feet in syncope,③hydroadipsia,④gastric blockade,⑤gastric splashing sound,⑥no desire for drinks,⑦light white tongue,thin-white and smooth fur,⑧deep and wiry pulse are the indications of Fuling Gancao Decoction;Subsequently,analyzed the composition of Fuling Gancao Decoction,considered that ginger is the main drug which treating congestion of fluid-retention in Middle-Jiao by Zhang Zhongjing.3 Experimental study3.1 Experiment oneObjective:To establish the animal model of FD with delayed gastric liquid emptying and evaluat it.

同时观察茯苓甘草汤对FD大鼠胃液体排空及胃底、胃窦及十二指肠中乙酰胆碱酯酶、一氧化氮含量的影响,探讨茯苓甘草汤的作用机制。1文献综述参照古、今中医有关文献对FD的中医病名、病因病机、辨证论治方法、临床及实验研究进展进行了探讨,并对现代医学在FD研究中所取得的(来源:A0bBC论文网www.abclunwen.com)进展进行了总结,进一步明确了FD的发病机制、诊断和治疗的研究进展;总结了中医对FD的病因及发病机制、中医诊断及经方治疗FD临床及实验研究进展;并搜集和整理已发表的有关茯苓甘草汤研究报道,阐述了茯苓甘草汤的现代研究进展;最后搜集和整理了近现代著名医家应用茯苓甘草汤的经验及验案。2理论研究理论研究部分首先对功能性消化不良胃虚饮停证的认识进行了理论溯源;其次对茯苓甘草汤的适宜证象进行总结,认为:①心下悸,②四肢不温,③口不渴,④胃中痞满,⑤胃中振水音,⑥不欲饮水,⑦舌淡白,苔薄白而滑,⑧脉沉弦是茯苓甘草汤的主证;随后对茯苓甘草汤方药组成解析,认为生姜是仲景治疗中焦饮停的一味主药。3实验研究3.1实验一目的:探讨建立功能性消化不良胃虚饮停证的动物模型方法并对其进行评价。

The Pneumatic tube clutch delivers to torque big, join together steady, easy to install, the absorb librate, can compensate a little amount lord, from move the stalk Cape face with path face opposite be partial to move, from move part inertial and small, service life long, construction tightly packed, seal completely sex good.

气胎离合器传递转矩大,接合平稳,便于安装,吸振,能补偿少量主、从动轴角向和径向相对偏移,从动部分惯性小,使用寿命长,结构紧凑,密封性好。

The Pneumatic tube clutch delivers to torque big join together steady easy to install the absorb librate can compensate a little amount lord from move the stalk Cape face with path face opposite be partial to move from move part inertial and small service life long construction tightly packed seal completely ** good.

气胎离合器传递转矩大,接合平稳,便于安装,吸振,能补偿少量主、从动轴角向和径向相对偏移,从动部分惯性小,使用寿命长,结构紧凑,密封性好。

First, this paper presents three girders model with double cable planes which main girder and side girder is connected by rigid arms, analyzes the dynamic characteristic of Yonghe cable-stayed bridge and obtains its natural vibration modes (i.e., frequency, damping values and the mode shapes ) by ANLSIS structural analysis program and uses these parameters as dynamic dactylogram of the intact case of cable-stayed bridge. Using the passage of random as the ambient vibration ,the dynamic properties of Yonghe Bridge is measured and the modal parameter of its 15 years after is identified and used as dynamic dactylogram of the damaged case. By the finite element analysis and locale vibration test, damaged and undamaged modal parameter is analyzed and curvature mode shape, which is sensitive to damage state, is introduced as possible candidate for identifying and locating damage in the cable-stayed bridge. Selecting the branch of part measured point from modal parameter, this paper deduces the damaged index which can detect the possible damaged location of the cable-stayed bridge deck and identifies the damaged region and degree for Yonghe Bridge. For the purpose of structural condition monitoring in in-situ , from another viewpoint, this paper introduces the method called the best optimization vector to detect damaged location and degree. The accuracy and reliability of the method presented in this paper are demonstrated by static analysis and test and the healthy state of Yonghe Bridge can be evaluated.

建立了双索面通过刚臂与主梁及边梁相连的三梁式力学模型,采用ANSYS结构分析程序对永和斜拉桥进行动力分析,对其振动模态参数进行识别,以此作为斜拉桥完好状态下的动力&指纹&;采用自由交通流作为环境振源,对永和斜拉桥动力特性进行测试,识别出永和斜拉桥使用15年后的模态参数,确立了破损状态下的动力&指纹&;利用有限元分析、现场振动测试,对破损前后的模态参数进行分析,提取对破损状况较敏感的模态曲率作为斜拉桥破损诊断的参数;并从模态参数中选取部分点的分量,导出可以指示斜拉桥桥面大概损伤位置的Index损伤指标,识别出斜拉桥发生破损的区段及破损程度;考虑大型斜拉桥在线监测要求识别破损的具体位置,从另一角度提出采用最优矢量法具体确定破损发生的位置及程度;为验证本文研究成果,对永和斜拉桥进行静力分析及静力测试,对其健康状况提出可靠的评价。

Based on the principle of Hamilton, dividing the main blade, flexbeam and torque tube into several beam elements, the bearingless rotor is nonlinearly modeled in this paper through modal transformation. By Newton-Raphson iteration and temporal finite element method, the above nonlinear equations are solved.

将无轴承旋翼的主桨叶、柔性梁和套管3个部分各自离散成若干梁单元,并将桨叶运动的物理坐标转换为挥舞、摆振、扭转方向的模态坐标,根据Hamilton原理建立旋翼气弹分析的动力学模型。

推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力