最后分析

Firstly, we research the Vlasov antenna with reflector mainly. A new method to calculate the radiation of the antenna is founded with Vectorial Theory of Diffraction, and the corresponding program is made. The reflective characters of Vlasov antenna are studied with Moment Methods, and the results show that the total reflected energy is less than 0.25%. The radiation patterns of the antenna are analyzed, and the formulas to estimate the wave beam parameters and to design the antenna are provided. The feasibility of radiating high-order modes by Vlasov antenna is also discussed and verified. The hermetization of the Vlasov antenna is researched and the results show that with such kinds of hermetization the antenna can work under gigawatt level. The design of the mode converter from TEM to TMoi is studied, which is useful when the TEM coaxial mode is radiated by Vlasov antenna. At last, the flared-end Vlasov antenna is also discussed.

在Vlasov天线方面：用矢量绕射理论建立了天线辐射场的计算模型并编写了计算程序，该程序计算结果在主瓣上与实验测量吻合良好，近旁瓣也基本一致；利用矩量法计算了天线的反射系数，表明该天线有较小的反射，总的能量反射小于0.25％；详细分析了天线的辐射特性，给出了天线辐射波束相关参数的估算公式和天线设计公式；进一步研究和论证了Vlasov天线辐射高阶轴对称模的可行性；对天线的密封方式和功率容量进行了讨论，结果表明在不需很大密封罩的情况下可以获得GW级的功率容量；为了用Vlasov天线辐射同轴TEM模，研究了TEM-TM_(01)模式转换器的设计，得到了一些基本规律；最后，介绍和分析了带有锥形喇叭的Vlasov天线。

In orde to obtain system optimization in high efficiency production and operation safety, the microcosmic problem of goaf treatment was brought into the creative design of mining method and the synergism of two problems was studied. Firstly, in view of the occurrence characteristics and mining conditions of catacalstic ore section of orebody No. 105 in Gaofeng mine in Guangxi province, considering the adaptability to different scale goafs in the ore section, based on mining environment reconstructing idea and continuous mining mode, a new mining method (mining environment reconstructing non-pillar sublevel-strip continuous mining method) was put forward. Then, some repr, esentative goafs were selected and their stabilities were calculated by discrete element method on the basis of differences of goaf scale, surrounding conditions and situ stress field. At last, the mining layout was adjusted on the basis of goafs stability analysis and the goafs were adjusted as a part of cutting engineering, blasting space or stope, so as to determine all kinds of goafs treatment schemes.

摘 要：为在生产高效和作业安全上取得系统整体最优，将碎裂矿段的空区处理微观问题纳入采矿方法创新设计宏观问题中，开展2种问题的协同研究：首先，针对广西高峰矿105号矿体碎裂矿段的赋存特点和开采技术条件，考虑对各种规模空区适应性，基于采矿环境再造和连续采矿理论，提出采矿环境再造无底柱分段分条连续采矿法；然后，根据采空区规模、围岩状况和原岩应力场等条件的差异，在所有采空区中选择具有代表性的空区，运用离散元程序对其稳定性进行计算分析；最后，在稳定性分析的基础上，灵活调整开采布局，将采空区调整为部分切割工程、自由爆破空间或采场，从而确定出各种规模空区的处理方案。

This paper firstly reviews the evolution of American going-concern auditing opinion, so we can know the essence of this kind of auditing opinion. Secondly, on the base of analysing the conditions of going-concern of Chinese enterprises and a typical case, we draw our conclusion that chinses capital market urgently demands going-concern auditing opinion.Finally, this paper focuses on financial characteristic of company and the characteristic of going-concern auditing opinion, the market response to going-concern auditing opinion, the value relevance as well as the determinants of auditor reporting going-concern auditing opinion.

本文首先以美国为例，回顾了持续经营不确定性审计意见(going-concern opinion，以下简称为GCO)的发展沿革，籍此认识持续经营不确定性审计意见的本质内涵；其次，在对我国企业尤其是上市公司的持续经营问题进行分析的基础上，通过典型案例的剖析得出我国资本市场对持续经营不确定性审计意见存在较强烈需求的结论；最后，针对我国证券市场持续经营不确定性审计意见的市场反应、价值关联性及被出具持续经营不确定性审计意见公司的财务特征、审计师出具持续经营不确定性审计意见的影响因素进行了实证分析。

Proceed ing from differences and relations between pulic,semi-public and private goos,t hes article analyzes the scope,standard and source of capital of public and semi -public goods provided by the government;points out the division of governments at various levels in this process;fur...

本文从公共产品、准公共产品和私人产品的区别与联系出发，分析政府提供公共产品和准公共产品的范围、规模及资金来源，并指出各级政府在这一过程中的分工，进而分析公共产品和准公共产品的不同供应方式，最后说明了公共产品理论对我国财政理论和实践的意义。

Finally, the parametric simulation program was designed with ANSYS APDL language, various simulation of welding and hammer peening can be analysed through defining different parameters.

最后，利用APDL语言编制了具有一定通用性的参数化模拟分析程序，通过改变模拟参数可以模拟分析不同条件下的焊接与锤击处理。

On the basis of referring the foreign and domestic literatures and systematically generalizing the former research results, firstly, from the adsorption gas, coal spontaneous combustion and the heat resolves, thesis analyzes the ignitable gas occurrence. Secondly, though the experiment station of coal spontaneous combustion, thesis obtains the critical temperature 60 ℃～ 100 ℃, splits temperature 100℃～ 150 ℃, the fission temperature 150℃～ 180 ℃ and the speed-up temperature 210℃～ 250 ℃ and ignitable gas release rules in the several temperatures sections according to the results. Finally according to fire resource and the catastrophe theory, ignitable gas explosion characteristic and the influence factors have been conducted of the qualitative investigation and the quantitative determination. The gas explosion control technologies are put forward. It has built the certain foundation for the effective prevention gas explosion accident occurrence.

本论文采用理论分析和实验模拟相结合的综合研究方法，首先从煤层吸附瓦斯、煤氧复合过程及煤高温热解三方面对采空区可燃性气体的产生进行分析；其次通过对大型煤自然发火实验测试台的应用，根据实验结果得到临界温度60℃～100℃、干裂温度100℃～150℃、裂变温度150℃～180℃和增速温度210℃～250℃等几个温度段的可燃性气体释放规律；最后根据爆炸引火源，结合瓦斯爆炸流变-突变理论，对可燃性气体爆炸特性及影响因素进行了定性研究和定量测定，提出瓦斯爆炸事故的控制对策，为有效预防瓦斯爆炸事故的发生打下了一定的基础。

Finally, based on the dynamic load chart received by kinetics study on gear transmission system of turbine starter, has a statistic on dynamic load, receives the load spectrum by the method of counting range, then selects S-N curve method and Manson-coffin formula respectively for the fatigue damage calculation and life prediction of the tooth circle.

最后，在对涡轮起动机齿轮传动系统进行动力学分析获得的动载荷历程的基础上，对动载荷进行统计分析，采用幅值计数法获得载荷谱；分别采用S-N曲线法和Manson-Coffin法对涡轮起动机齿圈疲劳寿命进行了预估。

Firstly, the realizable ways of signal detection and sample、 power circuit and the application of low-consumption model of MSP430 are discussed, by which the required function of current protection and voltage protection can be realized. Secondly, different protection algorithm based on micro-computer are discussed in this article, and from the virtues and defects of Fourier algorithm, an improved algorithm is put forward, and the importance of the improved algorithm is displaced. Thirdly, according to the national standard of GB/T18858 .3-2002, the principle of networklization of intelligence trip relay and how to realize it are mentioned. Lastly, using the current conditions, the test of precision is done. The experimental date present that the system is working well and can realize the real-time function of on-line detection.

首先在硬件设计上，对于信号检测、处理、电源电路、MSP430系列单片机的低功耗方式应用以及人机接口电路等问题提出了实现方法，基本实现了大范围电流、电压信号实时监控等功能；其次，本文还对当前各种微机保护算法进行了介绍，分析了傅立叶算法在实现智能脱扣器保护功能中的优缺点，并针对傅立叶算法中计算偏于复杂的问题对该算法进行了改进，提出了基于FFT的改进算法，通过算法的分析和比较，对改进算法的性能给出了评价；然后结合我国现场总线国家标准GB/T18858.3-2002讨论了DeviceNet现场总线在实现脱扣器网络化的原理，实现方法，论述了通讯接口电路的设计；最后利用现有条件，对装置进行了性能测试，试验数据说明系统工作状态较好，可以满足低压配电网自动化对低压脱扣器的各项要求。

From the results, we can analyze the stability of Manganin wire's resistance, and discuss the similarity between the zero-pressure resistance changes and the characters of pressure versus resistance.

本实验结果的分析，首先，拟探讨各加工条件下电阻变化的大小，接著再讨论 Manganin 压力计电阻的压力系数大小，最后，电阻安定性的分析包括了起始电阻的偏移和压力－电阻变化的关系之一致性。

We firstly classified the existing velocity analysis methods into different categories from various kinds of criterions, and then made an analysis by comparison of each other. After that we discussed factors that affect velocity accuracy and the selection of parameters. Finally, we described the process of migration velocity analysis and velocity model construction such as construction of initial model, as well as update and verification of the model.

从不同出发点对各种求取速度的方法进行了分类和分析比较，讨论了影响速度精度的因素及处理参数的选择，最后从初始模型的建立、模型的更新修正及模型的优化等方面提出了进行速度分析与建模的思路。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。