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At that night ,I could not fall in sleep because of a idea that I can read chinese poems without translation if I am going to learn Chinese systemic in the college.

当晚我躺在床上辗转不眠地思量,干嘛不上大学去系统地学习中文,这样我就有机会读中文原诗而不需借助译本了。

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 main research methods are:(1)Theory analysis:from the 2D plane geometry analysis, dots continuity characteristics are found. The first time irrational fraction algorithm is used in FM program.(2)Experiments reaearch:experiments of condition halftone function are designed under the cross-experiment principles. The first time variable information printer and C# language are used in experiment.(3)Data processing:new type digital density apparatus is used to measure data. Compare is used in processing data and error cause are explained. The main works as follows:The dot area percentage has been gained and new condition halftone function has been set up.(2)After being corrected, speed of irrational fraction algorithm has been compared with multiplicative congruence algorithm's.

本文的主要研究方法有:(1)理论分析:运用数字加网原理,从二维平面几何分析入手,借助实验验证研究网点连续特性;首次系统地把无理数取尾法随机数生成器引入到调频加网系统中,根据实验修正生成器的模型,运用统计假设检验理论,对生成的随机数序列进行统计假设检验;(2)实验研究:根据正交实验法则设计实验,首次采用可变信息印刷机(HP Laser PS印刷机)输出实验样张,克服了用传统胶印机作实验影响因素多的缺陷;采用新型数字式密度仪测量密度值,提高了数据精度;采用最新编程语言编写调频加网程序;(3)数据处理与分析:利用平均值比较法处理数据,对误差产生的原因进行讨论。

After the review of the previous studies on the models of sky luminance distribution, it is the first that this thesis make the systematic study of the pseud-overcast sky luminance distribution by two characteristics of the maximum sky luminanace element and the luminance lapse rate with that the all of sky luminance distribution is determined. Through discussed, these methods and results on pseud-overcast sky study are suggested to be valid of the standardization of intermediate skies in this thesis.

在较为系统地分析了前人有关天空亮度分布模型的基础上,首次利用天空最大亮度元和亮度变化率二个确定天空亮度分布的特征量,对构成中间天空(除CIE全阴天空和CIE全晴天空以外的一切真实天空)之必要部分的似阴天空进行了系统的研究,从而为中间天空的标准化提供了有意义的方法和结果。

As we controlled this system of void spaces or landscape spaces, we systematically and enthusiastically abandoned any claim of control over the residual lands and thought that they would probably turn into what the French call "merde."

因为我们控制了由空地和大地景观组成的系统,我们就能够主动地有步骤地放弃控制剩余的土地,并设想它们能够发展成法国人所说的"merde"。

Monoid algebra system is selected as the mathematical model of PORDBMS, and BSP as the parallel model. Monoid algebra system is powerful in expanding data types, offers a uniform notation for queries involving collection data types and methods, and provides a rigorous theoretical foundation.

在电网络有功分配与计算方面,本文较系统地分析了一般电网络模型与网络流规划算法模型的关系,从非线性无损失网络和有损失网络的角度研究了非线性网络流规划法求解电力系统网络问题的方法。

This paper proposes a "Personalize Assignment of Reward Restrictedly" model which is a Multi-Agents System composed of three heterogeneous agents, and uses this model to improve the original reward system in game.

故本论文提出并说明了有限度地个人化分配酬赏机制。利用三种异质性的代理人建构出一个多代理人系统来改变原有的酬赏分配机制。这三种代理人分别由玩家的观点、酬赏的观点与系统的观点来看待每一次的酬赏。

The qualitative simulator should produce a description of the system behavior that is useful in an educational setting, i.e., it should be didactically plausible.

定性模拟器应该产生教育系统中设定的有用的系统行为描述,它应该似乎很有道理地教训学习者。

Photosynthetic traits of Ningai 1 and its 4B-monosomic, nullisomic line were investigated in this paper(Rht3 gene was located in 4B-chromosome). 4B-chromosome has the positive effects on photosynthetic rate, chlorophyll content, RuBP carboxy lase content and activity, leaf conductance, chlorophyll relatve steady phase and photosynthetic avtive duartion and these effects are accumlative. So 4B-chromosome has the promoting influence on photosynthesis.

本文系统地研究了带有Rht3基因的4B染色体二体(宁矮1号)、单体(宁矮1号M4B)、缺体(宁矮1号N4B)材料的光合特性,发现带有Rht3基因的4B染色体对光合速率、叶绿素含量、RuBP羧化酶含量及活性、叶片导度均有正效应,并有累加作用,而且对叶绿素含量缓降期和光合速率高值持续期也有正效应,因此带有Rht3基因的4B染色体具有促进光合作用的效应。

In this study, a new horizontal microinjection system has been established to solve these problems. Because the average time per pronuclear embryo by microinjection has been significantly shortened with the horizontal system, the cleavage rate and 16-cell rate of those microinjected embryos increased markedly.

为了解决这些问题,本研究有针对性地设计了新型的水平微注射系统,利用此系统,可明显缩短常规注射原核胚的平均时间,注射后原核胚的分裂率、8-16细胞胚胎发育率也明显提高。

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Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来,英国,在此地早期居住的是凯尔特人,已经被征服了三次。

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