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with the development of satellite navigation communication,antenna is a very important unit,performance of the satellite navigation communication system is affected by it partly.a new type of bifilar helix for satellite navigation communication system is introduced,and the traving-wave bifilar helix is analyzed briefly.meanwhile,the design and the test results are given.the results show that the antenna possesses excellent circular hemispherical beam with wide angle circular polarization and better impedance match,and has a compact structure and high integration.it can be applied in caps systems successful.

小 摘要：随着卫星导航通信技术的迅速发展，天线作为卫星导航通信系统中的重要部分，在一定程度上决定着卫星导航通信系统的性能。介绍一种用于卫星导航通信系统的双臂螺旋天线，讲述爬行波式螺旋天线的设计过程，并给出最终测试结果。结果表明，该天线具有优良的圆对称半球波束，良好的广角圆极化特性和优良的阻抗匹配特性，其结构简单、紧凑，为通信入站回传提供了一种优良的选择。

In this paper we study the method of interpolation by radial basis functions in H~k(k ≥ 1) and give some error estimates. By means of such interpolation with a special kind of radial basis function, we construct a basis in H~k(k ≥ 1). Combined with the Galerkin method, this theory can be applied to solve boundary value problems for elliptic partial differential equations (such as the third boundary value problem for Poisson equation and the corresponding problem for the biharmonic equation), and some numerical experiments are also given.

本文从求解偏微分方程的角度出发，在被逼近函数u属于一般的Sobolev空间H~k(k≥1)的情形，引入了一种径向基函数插值方法，并建立了相应的误差估计；再利用这种插值性质，从一类特殊径向基函数出发构造Sobolev空间的一组基，针对Poisson方程第三类边值问题和重调和方程类似边值问题，为用无网格算法求解偏微分方程边值问题建立了相应的理论，并通过算例来验证了这一算法。

The result showed that the conventional and optimum design model of complex multi-evaporation had good universality. The new algorithm could be used to solve model more stably and more effectivly. The energy-saving effect was notable when all kinds of energy-saving measure were adopted and T0, Tk, tpj,Δti were optimized. In these conditions, the annual cost of optimum design decreased by 36.44% and 40.76% respectively than conventional design for the complex cross-feed and parallel-feed quadruple-effect evaporation system with solid separation. An optimum design software for multi-evaporation was developed, which had strong function, amity interface and easy maneuverability. This software may be applied to conventional and optimum design of multi-evaporation system under different conditions.

研究结果表明，复杂多效蒸发系统常规及优化设计的数学模型具有很强的通用性，求解模型的新算法稳定且高效；同时采用各种节能措施且对T_0、T_k、t_、Δti进行优化的系统节能效果最显著，对有固相析出的复杂错流、平流四效蒸发系统在上述情况下的优化设计比没有节能措施的常规设计可分别节省年总费用36.44%和40.76%；用可视化语言Visual Basic 6.0 编制的多效蒸发设计软件，功能强大、界面友好、使用方便，可用于多种流程、不同情况组合的多效蒸发系统常规及优化设计计算。

If shaped radiator can be done in houses screens, guardrails, Desks and stair handrails, if applied with a variety of accessories, can also be used as a bathroom towel racks, soap cup and clothes hook.

如果形散热器，可以在屏幕上的房屋，护栏，服务台和楼梯扶手，如果地适用于各种配件，也可作为一间浴室毛巾架，肥皂杯，衣钩使用。

But almost all known groups of foragers divide men's and women's work the same way, which makes it likely that the same rule applied in the past, and for the same reasons—men tend to be stronger and faster, and women are more likely to be occupied with childcare.

但几乎所有已知的食物采集者都按照相同的方式进行男女分工，这也许能表明当时也按照同样的原则进行分工——因为男性总是更加强壮、敏捷，而女性更可能从事照料小孩的工作。

Application fields:Gold,silver,platinum,fifanium and alloys,battery nickel band material and so on,can be welded with the equipment,and also all kinds of hot-sensitive components such as jewelry ornaments,clock-hairspring,integrated circuit leading wire,etc,It can be applied to the fields of light electronic hardware,electronic,communication,machine,automobile,military,jewelry ornaments and so on.

应用领域：该设备能焊接金、银、铂、钛机器和合金、电传捏带等材料，可用于珠宝首饰、钟表油四、集成电路引线等各种微小、热敏感零件的精密焊接，适于光电器件、电子、通讯、机械、汽车、军工、黄金首饰等行业。

The good results can be obtained with the newalgorithm; the local minimal can be avoided in some degree. In this paper, neural networks also were applied to quantitativestructure-property relationships analysis:1Studies on the toxicity of aniline, nitrobenzene and phenol derivatives and their structures.2 Studies on HEPT compounds for their anti-aids.3 Studies on nitrogen mustards and 2-formylpyridine thiosemicarbazone compounds for their anti-cancer.4 Studies on phenol and aniline derivatives for their gas chromatographic retention values.5 Studies on discrimination of tea by Self-organizing feature map network.

本论文还利用上述方法进行了一些定量结构活性相关性研究，主要内容： 1环境中有毒有害有机物的定量结构活性相关性研究。2抗艾滋病类药物定量结构活性相关性研究。3抗肿瘤类药物(氮芥子气类化合物和2-甲酸吡啶缩氨基硫脲类化合物)定量结构活性相关性研究。4苯酚和苯胺类衍生物色谱比移值预测。5将神经网络用于茶叶的分类。

Firstly, these products are designed to be used with machine polishers, and should not be applied by hand. This is because a very high work rate is required to break down the abrasive particles, and if they are not worked hard enough significant surface hazing will occur.

第一，这些产品是被设计来使用抛光机器施工，所以不应该使用手工来施工，这是因为要分解研磨颗粒必须要有非常高的运转速度，如果这些颗粒没有被分解，则漆面会出现明显雾化的情况。

In studies of interaction among pile, platform that above it and surrounding soil, this paper employ the concept of plate element to simulate the loading character of platform, and employ the concept of solid element to simulate the character of pile and soil, using the finite element method after understanding the geometry properties of pile, soil and the platform. Analyzing the loading properties of the three entities above and their deformation, this paper also employ a special element, Penalty Element. The introduction of penalty element of this kind has served to guarantee the join harmony of displacement between solid element and plate element, thereby effectively resolving the join problem between platforms, pile that support it and surrounding soil.Considering significant property difference between pile material and its surrounding soil, there may be much shear stress on their contact interface produced under vertical load, thus causing displacement or fission. Therefore it is necessary to adopt one special constitutive law of this kind of contact interface, which can reflect its feature of loading and deformation thoroughly. On the basis of the deformation feature and constitutive laws of some contact interface obtained by Zhang Dongji and people concerned through some single-shear experiments on contact interface between structure and soil, this paper employ one pile-soil three-dimensional constant thickness contact interface model to simulate the " slide" taken place on the interface between pile and its surrounding soil. With this kind model, this paper has also created one finite element model, which can be applied to perform finite element calculation and analyze the pile-loading feature, and deduced its element stiffness matrix.

在承台-桩-土共同作用中，考虑桩与承台的几何特性，采用有限元方法，用实体单元模拟桩土，用板单元模拟承台，更具体地分析桩和承台的受力特性和变形，而且还采用罚单元—既实体单元与板单元之间连接必须满足变形协调条件，来有效地解决了承台与桩土的连接问题，且在桩土共同作用中，由于桩体结构的材料性能与周围土层性质相差较大，在竖向荷载下有可能在其接触面上产生较大的剪应力从而导致错动或开裂，因此，为了充分反映桩土接触面上的受力及变形特征，应采用一种桩土接触面特有的本构关系，即利用张冬霁等人关于结构与土体接触面单剪试验所得到的接触面变形特征及其本构关系，引入桩-土三维等厚度接触单元来模拟桩与桩侧土之间的&滑移&，在此基础上建立可用于桩基承载性状分析的有限元计算单元模型，并推导出了各单元的刚度矩阵。

It was pointed that encoding is important to DNA computing, in the implement of the DNA algorithm, the technique was used which is to safeguard 3＇ margin or 5＇ margin of DNA sequence corresponding the two points in order to find out all chains, and electrophoresis could be applied to arrange all chains and to throw off all the chains whose length exceed summation of weigh in graph, The probe with biotin to observe and register intensity of bright point to filter all paths; finally the orders of all paths can be obtained to analyze the recordation of experimentation.

得到路序。指出编码问题在DNA计算中的重要性。在算法实现过程中，用保护两端点对应的DNA片段3'端或5'端的办法得到所有的链，并用电泳的方法对链进行排序以及去掉链长大于图权值总和的链；对探针进行生物素标记并且采用观察、记录亮点强度的办法筛选出所有的路；分析实验记录得到路序。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。