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In view of the key problem of subminiature underwater robots, structural improving,control algorithm and underwater experiment is studied. They can be described as follow: Firstly, the subminiature underwater robot should be compact in size and low cost, for which, it is difficult for us to control its balance. So that, a new kind of piston--style ups and downs system was invented, which can keep the underwater robot horizontally suspended in the water without driving force.

中文摘要本文针对超小型水下机器人在运动中存在的问题,设计了一种新的超小型水下机器人的沉浮结构形式,着重研究了其运动学动力学性能、探讨了相应控制算法、进行了水下试验,具体研究内容如下:首先,超小型水下机器人由于体积小重量轻,在水中沉浮时悬停平衡控制困难,为此进行了一种新的活塞式沉浮系统设计,该系统使水下机器人能够在无动力驱动的情况下,使其呈水平状态稳定悬浮在水中。

Based on experiment study and theoretical analysis, one AC pavement design method, which can take into account of thermal fatigue effect of asphalt mixture, is raised through the analysis of a few influential AC pavement design method both domestic and abroad.

在试验研究和理论分析工作的基础上,通过对国内外有影响的几种沥青路面设计方法的分析,提出了一个能够考虑沥青混合料的温度疲劳效应的沥青路面结构设计方法。

Firstly, This paper introduces the development of computer control theory and the testing process of high-duty fuel cooled oil cooler.

本文首先叙述了计算机测控系统的发展概况以及燃/滑油散热器的试验过程,在充分分析设计指标和要求的前提下,提出了试验台总体方案的设计。

Through the design of AGP-test equipments and methods which could simulate the impact of input of exogenous nutrients on eutrophication, the evolution of algae and aquatic species extinction process in Miyun Reservoir under different environmental and nutritional conditions are simulated. Then the ratio growth rate in the three simulation stages are simulated and analyzed combining the numerical analysis software MATLAB 7.0. At last, the conclusion that in the three designed stage, the total phosphorus threshold which leads to a water bloom in Miyun is respctively 0.053mg/L, 0.062mg/L, 0.064 mg/L is educed. Based on the regression relationship of total phosphorus,chlorophyll-a, total nitrogen, and the transparency,we compartmentalized the evaluation standard level of eutrophication in Miyun Reservoir.

通过设计模拟外源输入对富营养化作用的AGP试验装置和方法,模拟了不同环境条件、营养条件下密云水库优势藻种演变和富营养化过程,结合使用MATLAB 7.0数值分析软件,对3期模拟时段的比增长率进行拟合分析,得出3期设计阶段密云富营养化发生的总磷阈值为0.053mg/L、0.062 mg/L、0.064 mg/L,再根据总磷与叶绿素a、总氮、透明度之间的回归关系,划分了密云水库富营养化的评价标准级别。

In the paper, The author has designed a kind of vertical abrasive rice whitener which can produce rice with germ, several working parameters has been optimized, The experimental results are satisfactory.

本文介绍了一种将研削机理应用于碾米机的设计之中,设计出一种立式研削式碾米机,对碾米机的主要工作参数进行了优化,试验结果表明,对于提高大米留胚,效果良好。

These studies indicate the rationality of our molecular design based on the crystal structure of KARI complex. To obtain more KARI inhibitors with high activities, the molecular docking and 3D-QSAR methods were applied to our further studying of these amidine compounds. Two methods AutoDock3. 0.3 and DOCK4. 0 were used in molecular docking, and the calculate results accord with that of herbicidal tests in general. The CoMFA model from 3D-QSAR analysis provided useful guidance for designing highly active compounds prior to their synthesis.

这些分子作为潜在的KARI抑制剂为基于KARI的农药分子设计提供了有利指导;对部分小分子进行了合成,在除草活性初筛的近三十个化合物中,个别化合物表现出较好的除草活性,其中一个化合物wb1596对油菜和稗草具有较高的生长抑制率,并通过E.coli KARI酶活性抑制试验验证了其KARI酶的作用靶标,此化合物可以作为KARI一个有苗头的抑制剂为后续工作奠定了基础;对发现的有苗头的KARI抑制剂进行了结构修饰和优化,合成了一系列脒类化合物并确证了它们的结构,改造后的化合物与原抑制剂相比大多除草活性相当或更佳,从而表明我们基于靶标结构的分子设计的合理可靠性;对所合成一系列脒类化合物进行了分子对接和三维定量构效关系研究。

The same condition of reduction was also showed 12.34% reduction of the thorax acceleration value from 42.76g to 37.48g. Research NO.3 :The purpose of this research is to study the applicability of car seats for spastic paralysis children. Emphasis was placed upon the static anthropometrical measurement clinical evaluation experiment, and questionnaire survey for backward-facing and forward-facing children car seats in CNS, especially for the 9-18kg spastic paralysis children.

子题二︰本研究提出缓冲设计来降低头颈部的伤害之研究﹐透过前导实验和后期之实物前向式冲击试验证明与对照组比对,可降低头部和胸部加速度,分别降幅为30.19%和12.34%,因此证明缓冲设计提供较好的头颈部伤害的防护率。

In combination with the design of campaniform inlet duct in a certain pumping station of the East Line of South-to-North Water Transfer Project, three different shape suction chamber hydraulic models arid experimet apparatus were designed for testing on hydraulic loss.

结合南水北调东线某泵站钟形进水流道的设计,设计和制作了3种不同形状吸水室模型流道并进行水工试验,测试了流道水力损失。

By the relative theory analysis and local practice,the design of the fully mechanized face with water-affusion into coal and spraying dustproof are compositively reformed.

通过相关理论分析和现场试验,对综放工作面煤体注水设计和喷雾降尘设计进行综合改造。

Friction coefficientλ was linearly increasing with augmenting of Ra /Ln , and the pressure loss was descending with linearity rules along the flow path, and the head losses due to continuous dentiform cell was equaled.

借助CFD数值试验研究提出了基于流道内部流速分布的常规滴灌和微重力滴灌用滴头分形流道优化设计方法,并建立了面向不同流量需求的滴头分形流道成型设计模式。

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推荐网络例句

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。