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In the paper, the researches and conclusions are:The basic theory and technique ofgeography information system, Introduce the history of the GIS technique developmentand it develops the trend, the GIS modernizes the meaning of the construction and thepurpose and the meaning of the topic researches to the our army artillery.The design ofartillerist numeric map, Make use of the soft strong graphics function of the SuperMapgeography information system, from how made the numerical map of artillery tocommence, carried on the processing and processed the piece to the artilleryappropriative paper quality diagram to manufacture the numerical map of artillery.Themold of choosing the position of artillerist and excavating the position of spacedata;Rules of space clustering analyzing and space relationship on the basis ofmathematics configuration;Choosing the path of positing convert;optimalpath arithmetic on the basis of chart theory and realize optimal path analyze.

论文研究内容有:地理信息系统的基本理论与技术,介绍GIS技术发展的历史及其发展趋势,GIS对我军炮兵现代化建设的意义和课题研究的目的及意义;炮兵地图数字化设计与制作,利用SuperMap地理信息系统软强大的制图功能,从如何制炮兵数字地图入手,对炮兵专用的纸质地图进行处理和加工件来制作炮兵数字地图;炮兵阵地选取分析模型、阵地空间数据挖掘模型的建立和挖掘过程,基于数学形态学的空间聚类分析法、空间关联规则法的挖掘模型;阵地转移的路径选择,对炮兵阵地转移路径进行分析,基于图论中的Dijkstra最优路径算法,实现转移最佳路径分析。

In this paper, the capital risk management of international construction by means of risk analysis is described. First, the traditional theories of capital risk analysis are discussed in detail. Then, possible capital risks in international construction contracting are analyzed and assessed systematically.Third,a series of mathematical models of assessing capital risks are established after analyzing the cash flow of the project. Based on the analysis mentioned above, computer simulation programs are developed.

将风险分析技术用于国际工程资金管理领域,在总结以往的风险分析理论的基础上,通过对国际工程承包资金风险的辨识、估计和评价,结合对工程现金流分析,系统分析了国际工程承包中可能遇到的风险,建立了一组资金风险评价的数学模型,并结合计算机模拟技术,编制了风险模拟计算程序。

The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.

本文的主要内容如下:1对翅片管蒸发器结构特点进行分析,选取适当的微元控制体,就干、湿和霜工况下对每个微元分别进行传热传质分析,基于经验关系式确定霜的有关参数,对于霜工况下的霜生长建立模型,经适当假设,运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型,为系统仿真奠定基础; 2对蒸发在大扰动下的开、停机过程,运用动态集中参数模型进行分析和计算,为更好地描述制冷系统运行的全过程奠定基础,同时也为制冷系统实现自动控制提供一定的理论基础; 3对蒸发器正常运行过程,运用动态分布参数和参数间定量耦合的观点来分析和计算,为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性; 4编写翅片管蒸发器动态特性仿真计算程序,可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场,实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。

Indicating the main characteristics of production technology in mail process center. Knowing in detail of the computer model and simulation method of discrete event system; investigation of computer simulation software; comparison and analysis the advantage and disdvantage of the simulation software. Modeling and simulating the package sorting production line in Xinjiang Newspapers and Periodicals Emitting Office and analyzing the simulation result. Modeling and simulating the hanging sorting -production line in Urmqi Mail Processing Center and analyzing the simulationresultProposes a simulation design method for the mail center auto product line, and made a simulation design for package emitting auto product line in Xinjiang Newspapers and Periodicals Emitting Office. Modeling a mathematical model and simulate for the construction of the sorting table of package sorting machine, and proposes a scheme of discriminatingly setting the buffers of sorting table.

本文的主要工作如下:针对邮政业务,特别是邮件处理中心的邮政业务作详细的调查分析,指出邮件处理中心生产工艺的主要特征;通过详细的了解离散事件系统计算机仿真技术的研究方法,并对计算机仿真软件作了周密的调查,借鉴、分析比较其功能特性的优缺点后,根据实际情况选购了本论文所需的仿真软件工具;对报刊发行局包件分拣生产线作计算机建模和仿真,将仿真结果作分析总结;对邮件处理中心转运中心的推推分拣生产线作计算机建模和仿真,得到仿真结果并作总结分析;提出邮件处理中心自动生产线的仿真设计方法,对报刊发行局期刊发行自动化生产线作仿真设计;最后对包件分拣机上包台结构建立数学模型和计算机仿真,提出多级上包台区别设置缓冲区的方案。

A series of theoretical and experimental studies on the microstrip patch antennas with dielectric superstrates is carried out systematically. Firstly, a comprehensive survey of the microstrip antenna technology and its theories are presented. Then, two analysis techniques, named as the spectral domain Green's function method and the spectral domain integral equation method are developed. The SDGF method is a simplified analysis technique, which takes advantage of the spectral domain immittance approach to find the dyadic Green's function for the stratified media, and obtains the complete closed-form formulas for radiation patterns, directivity, efficiency, gain etc. Some interesting calculated results are presented. The SDIE method is capable of determining resonant frequency, radiation characteristics, input impedance etc, for the covered microstrip patch antennas. Comparing with other full-wave analyses it reduced computation and mathematical labour remarkably. The singularities near the pole location of the surface-wave modes and the difficulty of the integral computation over infinite range of oscillating integrands are dealt with actively and documented well. Results predicted by the SDIE method agree extremely well with our experimental results for resonant frequencies of various superstrates. The superstrate effects on impedance and radiation characteristics also have been investigated experimentally so that the gap due to lack of measured data and computed results for multi-layered superstrate has been filled to some degrees and two useful observations have been achieved for weakening the resonant frequency shift and optimizing the microstrip antenna gain. As a meaningful application, the design and analysis of a 4×4 patch array are introduced.

实用微带天线普遍加介质覆盖层来防护热,物理损伤和环境影响,也可能在飞行或严酷气候条件下自然形成覆盖层本论文对带介质覆盖层的微带贴片天线系统地作了一系列理论和实验研究首先,对微带天线技术和理论作了全面的综述然后,发展了两种分析方法,称为谱域格林函数法和谱域积分方程法SDGF法是一种简化的分析技术,它利用谱域导抗法来求得分层媒质的并矢格林函数,并得出方向图、方向性系数、增益等参数的完整的闭式公式,给出了一些令人感兴趣的计算结果SDIE法能确定介质覆盖微带天线的谐振频率、辐射特性和输入阻抗等与其它全波分析方法相比,它明显减小了计算量和数学工作量已有效地处理了表面波模极点附近的奇异性和对振荡的被积函数的无限区间积分计算的困难对于不同覆盖层情况下的谐振频率,由SDIE法所预示的结果与我们的实验结果吻合得很好对于覆盖层对阻抗和辐射特性的影响也已作了实验研究这在某种程度上填补了缺少实验数据和计算结果之间的间隙,并得出了缓解谐振频率偏移和优化天线增益的两点有用的结论作为有意义的应用,介绍了一个4×4元矩形贴片天线阵的设计和分析。

The action mechanism of the stun gun is analyzed in detail and the scheme design of the stun gun system is completed. With the SolidWorks software, three-dimensional model of the system has been constructed. The characteristics of the interior ballistics of the proposed scheme of stun gun are analyzed and the corresponding interior ballistics model is proposed. The numerical computation of the interior ballistics is also conducted. According to the functions of the electrical module ,the circuit is designed and the security and reliability of the system is analyzed. At last, the test scheme of the system is proposed and some experiments are carried out which validate the feasibility of the designed system.

论文中分析了电击枪的机理,完成了系统方案的设计;用SolidWorks软件建立了三维实体模型,分析了所提方案电击枪的内弹道的特点,建立相应的数学物理模型,并进行了内弹道分析计算;根据电子模块所要实现的功能设计了硬件电路;对设计的方案进行了安全性和可靠性的分析,最后拟定了试验的方案并进行了试验研究,验证了设计方案的可行性。

Further more, based on the analysis of Bayesian AR model and MA model , we analyzed the Bayesian ARMA model and its mathematical structure. Mainly analyzed the Bayesian ARMA(1,1) model, and constructed the model condition likelihood function and the parameters posterior distribution.

同时,以时间序列AR模型及MA模型的贝叶斯分析为基础进行了时间序列ARMA模型的贝叶斯分析,从分析ARMA模型的数学结构开始,重点进行了ARMA(1,1)模型的贝叶斯分析;构建了模型的条件似然函数和参数的先验分布,推导其参数的条件后验密度和边缘后验密度;并借用一组SAS软件模拟的ARMA(1,1)序列,通过WinBUGS进行仿真分析。

This paper first analyses and summarizes the ststus quo and evolution trend of encryption, some common used cryptograph are introduced, including the algorithms used in symmetric cryptosystem and asymmetirc cryptosystem. We describe the theory of each algorithms and compare the elliptic curve cryptosystem with the other two asymmetric cryptosystems to show the advantages of this algorithm. Second, the principle of ECC is discussed, including the math foundation of ECC, basic conception of elliptic curves, constructiong idea of ECC, operation on the elliptic curve and so on. Third, the current attacks of ECC were analyzed deeply, and an algorithm based on limited prime number field was constructed. We analyzed its realizability in theory, and implement it by using certain function of MIRACL software package. Latter half in this paper, the implementation model of a simple elliptic curve encryption system which based on GF has been introduced. The paper also put a deep analysis on the algorithm of point addition and point multiplication.

本文首先对密码技术的发展现状及其发展趋势进行了分析和综述,详细的介绍了私钥密码系统和公钥密码系统的发展,说明各种算法的原理和优缺点,并给出了一些典型的密码体制的简要分析,重点将椭圆曲线算法与其它几种公钥密码算法比较,说明椭圆曲线算法的优势;其次,探讨了椭圆曲线密码体制的原理,包括椭圆曲线密码的数学基础、基本概念、椭圆曲线密码体制的构造思想等问题;第三作者对椭圆曲线的攻击现状作了详细的分析,针对所使用的大素数域F_p,设计了素数域上安全椭圆曲线产生的算法,从理论上做了可实施性分析,从软件上做了具体实现;在本文的后半部分,提出了一个简单的基于有限素数域上的椭圆曲线加密方按算实现模型,并对SECES中设计的点加和点乘运算进行了深入分析。

Therefore, it can be regarded as a great improvement of the investment decision-making theory and methods .This article makes a systematic research on real options theory and method and its application, including the following several main aspects:Firstly, it makes a detailed discussion about the common theoretical basis of financial options and real options, including no-arbitrage equilibrium principle, risk-neutral definition, complete market and dynamic tracking.Secondly, it analyze three basic characteristic of investment decision-making in modern market economic system: irreversibility, uncertainty and flexibility, and from the angle of their mutual quantitative and qualitative interactions, it makes a comparison between the traditional NPV methods and real options methods and makes a summary of the general analytical methods of real options.Thirdly, it discusses the all elements in the application of real options such as the ^leakages in value of real assets, basis risk, and private risk, and furthermore, it attempts to put forth a normalized strategy of its application and construct a basic framework of its application.Fourthly, it applies real options theory to strategetic investment of enterprises and the buy-out of company, putting forth a value model for strategetic investment program and making a concrete analysis of its application to buy-out. Furthermore, it advocates that a flexible investment decision-making system should be setup according to real options theory in our country.

本文对实物期权理论和方法及其应用进行了系统研究,主要内容包括如下几个方面:(1)详细讨论了金融期权和实物期权共同的理论基础,主要包括无套利均衡原理、风险中性定义、完全市场以及动态复制方法,对这些理论方法的探讨既是本文的出发点和基础,它们提供了研究实际应用实物期权的一个基准点,也是贯穿全文的线索和灵魂;(2)分析了现代市场经济体系中投资决策的三个基本特征即不可逆性、不确定性和时机选择,并从它们数量上和质量上相互作用的重要意义的角度,分析了传统的净现值法与实物期权方法的差异,指出了净现值法在不确定环境中存在的缺陷及实物期权处理投资灵活性的价值,并将净现值法纳入实物期权投资分析决策体系当中,总结了企业投资决策实物期权的一般分析方法;(3)探讨了实物期权应用中要考虑的各种要素,如实物资产的价值漏损、基差风险和非市场风险等,并进一步提出了实物期权应用的规范化策略和构建了一个实际应用实物期权方法的基本框架,尝试将期权的基本原理与企业在现实经济环境中投资决策的要素结合起来,从而可以在一定程度上超越期权的复杂的数学计算而汲取期权思想的精华,从而促进期权决策方法在实际投资决策中的应用;(4)将实物期权方法应用于企业战略投资,得出了战略投资项目的价值模型,指出可以将实物期权理论和方法应用于企业并购,分析了应用的具体方面,并提出应根据实物期权理论建立一套适合我国企业的灵活的投资决策系统。

Then the intellectual control technology of vacuum circuit breaker is discussed particularly. As a control object, the bi-stable permanent magnetic actuator is separated into basic principle so as to determine the nature of the whole. The direct-coupled models of magnetic fields for analysis and for calculation are presented. The static and dynamic characteristics of the models and dynamic behavior analysis and matching analysis for the vacuum circuit breaker with bi-stable permanent magnetic actuator are also discussed. For a further study, fuzzy neural network control technology based on synchronized-closing operation of vacuum circuit breaker is analyzed and the research conclusion is used for realizing the synchronized-closing of vacuum circuit breaker in the future.

论文首先分析了永磁机构的结构和工作原理;然后主要针对双稳态永磁机构真空断路器分析了在开断和关合过程中的静态磁场耦合模型、动态分析数学模型和真空断路器的动态特性,并就永磁机构和真空断路器的匹配进行了分析;最后分析了基于双稳态永磁机构真空断路器的同步操作问题,深入研究了同步操作的模糊控制原理和算法,研究结果为最终实现永磁机构真空断路器的同步操作奠定了基础。

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推荐网络例句

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。