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Also, by using a novel offset architecture, as opposed to completely overlapped architecture, for the differential transmission pair, a 33% reduction of thickness is achieved in the design of a miniaturized common-mode filter with multi-layer LTCC technology. In view of increasing need of high-speed clock and data circuits to control their skew problems, a design of LTCC delay line is then conducted. To improve the waveform distortion associated with the microstrip/stripline-type meander delay line, a miniaturized high-frequency 3-D delay line with grounded guard traces is introduced. By means of 3-D structure, the 233 ps delay time, which requires extra board space amounting to a factor of 2.34 by stripline type meander delay line, can be shrunk into an EIA 1206 form factor.
为因应高速时脉及高速线路的不断发展,用於控制讯号、时脉同步的延迟线路需求日益增加,接著讨论的题目便是应用低温共烧陶瓷制程技术设计多层的延迟线路元件,为了改善在微带线/带线型折线式延迟线路波形失真的问题,论文中提出以接地的防护线来设计小型化的三维多层延迟线路元件,比较应用带线型折线式延迟线路和应用三维架构设计的延迟线路元件,同样提供233 ps的延迟时间,多层架构设计之延迟线路可缩小至EIA 1206 的尺寸,省下2.34倍的电路板面积。
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The seismic disasters features and behavior mechanisms of the buriedwater supply pipeline are analyzed by synthesis and the breakage of thepipe joints caused by seismic wave propagation as main disasters mode isled into. The soil-pipe interaction, and the soil-pipe slippage arediscussed. Statistical experience method resulted from earthquakeinvestigations and theoretical methods based on reliability theory areintroduced. The reliability of buried pipeline is researched. The methodfor estimate connective reliability of network by means of Monte Carlesimulation technique and Breadth First Search method is introduced. Theconnective reliability of water supply pipe network is researched.
本文综合分析了地下供水管道的地震破坏特征和反应机理,引入了以接头破坏作为主要的破坏模式,并探讨了管土间的相互作用和滑移作用等问题;介绍了根据震害调查数据回归的统计经验法和基于可靠性理论的理论分析法,对地下管道的可靠性进行了研究;介绍了利用蒙特卡罗法和网络图论中的广度优先搜索法判定网络连通可靠度的方法,对供水管网的连通可靠性进行了研究;考虑到震害预测方法中的许多参数是随时间变化的,应用灰色理论和概率论,建立了基于GIS 的供水管网动态震害预测模型。
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Based on the actual conditions of the 5342 fully mechanized caving face of Wulan Coal Mine, the 3-D distribution of gas in the face is tested by measuring points arrangement in the stereo grid. The isograms of gas distribution of the face are drawn. Gas concentration nadir distribution curve along the working face incline direction is drawn by method of seeking function minimum points. The method of calculating gas emission components ratio of the face by means of the curve is brought forward.
针对乌兰煤矿5342综放工作面的实际条件,采用立体网格状的测点布置,对该工作面瓦斯体积分数三维分布进行了测定,绘出了瓦斯分布等值线图,采用求函数极值点的方法,得出了工作面沿倾向瓦斯体积分数最低点分布曲线,提出了基于瓦斯体积分数最低点分布函数的瓦斯涌出分量比例计算方法。
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The system adopts C8051F020 single chip microcomputer to realize the communication with the robot principal controller by means of serial port. With a compact structure, the performance of the system is unaffected by the installation position, so it can be assembled to other type of robots as a robot standardized component , in order to help the robot to complete the olfaction-related work.3. Inspired by the foraging strategies of animals, a strategy of odor source localization is put forward based on the animal predatory behavior. The strategy fuses the information of gas sensor, wind direction sensor and ultrasonic sensor etc. and integrates several good search algorithms such as Z-shaped search, upwind search and fuzzy neural network search and so on.
该系统结构紧凑,性能不受安装位置影响,可作为机器人标准化组件组装到各种类型的机器人上,以帮助其完成与嗅觉有关的工作。3、受动物捕食策略的启发,提出了一种基于动物捕食行为的机器人味源定位策略,融合了气体传感器、风向传感器、超声传感器等传感器信息,整合了&Z&形搜索、逆风搜索,模糊神经网络搜索等多种较优的搜索算法。
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The binding of different halide anions to four strapped calix[4]pyrroles was studied by means of molecular mechanics and molecular dynamics simulations methods. The results indicate that the anion binding ability of calix[4]pyrrole-type systems could be effectively tuned by modifying the length and nature of the bridging straps. In this process, it was the most stable conformation upon anion binding due to the formation of four NH\|halide hydrogen bond, simultaneity, the difference of cavity by modifying straps adapted themselves to different halide anion.
模拟结果表明,加入带状修饰链和调节链长可以增强对某种特殊卤素阴离子的识别,在这个过程中,卤素阴离子与杯[4]吡咯NH上的氢形成的多氢键使主体分子与阴离子形成稳定复合物,同时带状修饰链通过改变杯吡咯空腔大小影响主体分子与卤素阴离子的氢键相互作用,从而调节了对不同阴离子的识别能力。
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In this thesis, we concentrate on the development in theoretical prediction and experimental synthesis of CN compounds in the recent 10 years. By means of ion beam sputtering, treating melamine at high temperature and pressure, pyrolyzing melamine and treating pyrolysis products of melamine by impulsive discharge and high-speed impact, we explore the routes to synthesize carbon nitrides. The chemical compositions, crystal structures and bonding states of the CN films and powders obtained from the experiment are studied by the use of EDX, XRD, TEM, XPS and FTIR.
本文概述了十年来碳氮化合物在理论预测和实验研究方面的进展;采用离子束溅射、三聚氰胺高温高压和三聚氰胺热解以及产物的脉冲放电和高速冲击加脉冲放电处理等三种方法,探索了碳氮化合物的合成途径;借助X射线能谱、X射线衍射、透射电镜、X射线光电子谱和红外光谱等手段,对所获得的碳氮薄膜和碳氮粉末进行了成分、晶体结构、价键结构等性质的分析。
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By means of recording the cells of cerebral lamellas, the artical reveals the features of spontaneous discharge by rats'front nerve cells of gyrus cinguli, and the effect on the discharge by rourotransmitter perfusions, such as SP,5 HT,GLU,GABA and NE.
采用脑薄片细胞外记录方法,观察大鼠扣带回前部神经元自发放电活动的特性;以及SP,5- HT,GLU,GABA,NE等神经递质对神经元放电活动的影响。
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In order to make the process of rain increasing by roct more precise and more efficient by means of determining the objective according to data,it is advisab e to link TWR01 radar,714CD radar truck-mounted type WR-1B rocket launch work spot and the work control center by applying synthetically computer network optical fiber GPS wireless communication techology,and to form a rain increasing work direction system,which can enhance scientific levels of the direction and the spot work in rain increasing.
为了细化火箭增雨作业过程,依据数据确定目标有效实施增雨作业,通过综合运用计算机网络光纤GPS无线通信技术链接TWR01雷达、714CD雷达车载式WR—1B火箭发射作业点、作业指挥中心,形成增雨指挥作业系统,提高了人工增雨科学指挥、科学作业水平。TWR01雷达计算机系统自动解算出火箭发射装置的作业参数,GPS确定火箭作业地点,增强了火箭发射地点、方位、仰角、高度、行程等作业数据的准确性和科学性。
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Running faulty and type selection process are introduced for the slurry pump in phosphoric acid tank area, summarization is made for type selection of slurry pump, as well as for application effect after its reformation; by means of reformation for coupling of single screw pump imported, running rate is increased by 1%, phosphoric gain rate is increased by 3%.
介绍磷酸罐区泥浆泵的运行故障和改型过程,总结了泥浆泵选型及改造后的使用效果,通过对进口单螺杆泵联轴节的改造,运转率提高1%,磷酸装置磷得率提高3%。
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Through the investigation, the existent orderliness of gypsum was studied by reconnaissance and survey in locale, and analyzed the physical and chemical quality of bedrock by means of much of experiment, furthermore gained a series of dynamical parameter by considering particularly the representative nature of the sample and selecting unflabby soft rock and intact gypsum samples.
在研究中通过现场调研、勘察,分析了石膏层在泥岩中的分布规律,并且充分考虑了试验的代表性,选取松弛程度较小的泥岩和未被溶蚀的石膏岩试样,进行了大量的室内与现场试验,分析了坝基岩石的物理化学性质,并获取了一系列的力学指标。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。