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Firstly, the research studies the coding rule of the PDF417 barcode and designs related computer code algorithm, with making it programmed, and completes the coding part of the system software. Next, the coding and decoding principle of Reed-Solomon error-correcting code is briefly introduced. According to thecoding and decoding principle in galois field GF(929), to analyze and study its practical application with emphasis in this topic. Then, the PDF417 barcode decoding process is analyzed and studied detailed according to the barcode coding principle, with the corresponding realization method designed, improving the design in theory aspect by using material example, at the same time programming the design method to complete the decoding part of the system. Finally, validated the system program in the practical application of image information aspect, by using the nonrepeatability and the randomicity characteristic of Julia mark shape artwork.

本课题首先研究PDF417条码的编码规则并设计相关的计算机编码算法使其程序化，完成系统软件的编码部分；其次，简要介绍Reed—Solomon错误控制码的编码与译码原理，在伽罗瓦域GF(929)内根据其编译码的原理重点分析与研究其在本课题中的实际应用；然后根据条码的编码原则对PDF417条码的译码过程进行详细的分析与研究，并设计出相应的实现方法，利用具体实例对设计方法进行理论方面的实践同时将设计方法程序化完成系统软件的译码部分；最后利用Julia集分形图形的不可重复性和随机性的特点对系统软件在图像信息方面的实际应用进行了验证。

The externality and social welfare, tragedy of public glebe and environmental property right, model of substance conservation and the sustainable development plan.

本文认为，对环境问题的理论研究大致分三种脉络：外部性与社会福利、公地的悲剧与环境产权、物质平衡模型与可持续发展规划。

Explicitly, they are consist of three classes: If H is semisimple, then H k* for some finite group; If H is not semisimple and the characteristic of k is zero, then H is isomorphic the dual of the cross product between one so called Andruskiewitsch-Schneider algebra and a group algebra; If H is not semisimple and the characteristic of k is not zero, then H is isomorphic the dual of the cross product between one special algebra and a group algebra.

具体地讲，它们共分三类：①如果H是半单的，则H同构与一个群代数的对偶；②如果H是非半单的并且基础域的特征是0的话，则H同构一个所谓Andruskiewitsch-Schneider代数与一个群代数交差积的对偶；③如果H是非半单的并且基础域的特征不是0的话，则H同构于某个特定代数与一个群代数交差积的对偶。

The optimal position of uniform section is calculated, and compared with the normal prism homogenizer. According to the theory that the beam energy refracted by the trapezoid prism is divided into 3 parts then overlapped in the base of the middle high energy, it realizes the use of association with the normal prism in two-dimensional.

实验中根据经梯形棱镜折射后光束能量在中间较强光束的本底基础上进行三分互补叠加的原理，实现了其与普通棱镜均匀器在二维方向上的组合使用；通过调节均匀器与接收屏之间的距离并同时记录每一位置处光束光斑的能量分布改善情况，确定了最佳均匀截面位置并与理论计算相吻合。

The results of character evolution history reconstruction shows the SC in PT and AD clade might be a homoplasy character; also, the SC in PT clade might have multiple origins. SC in Pteridaceae has some special characteristics:(1) the cell long axes usually run parallel to the lateral veins;(2) Most of Pteris and Adianum species have VSC only in lower epidermis;(3) Species have ISC also have VSC.(4) Presence of spicular cells is highly correlated with the long veinal epidermal cells. Species have type III silica deposition type usually have longer and narrower veinal epidermal cell compared with ordinary epidermal cells; Species have type IV silica deposition type also have long epidermal cells, but not significantly different from ordinary epidermal cells.

本实验中亦发现凤尾蕨科之矽异形细胞具有几项特色：(1)矽异形细胞之长轴多与叶片侧脉方向平行(2)发现多数铁线蕨属以及凤尾蕨属植物仅下表皮具有脉上矽异形细胞；(3)具有脉间矽异形细胞的种类会同时具有脉上矽异形细胞；(4)长条形的侧脉上表皮细胞与矽异形细胞具有相关性，仅具脉上矽异形细胞的分类群之脉上表皮细胞均较一般表皮细胞细长；具有脉间矽异形细胞之物种之脉上表皮细胞亦为长条形但形态与一般表皮细胞常无明显形态差异。

In summary, our results suggest that ANE increases micronuclei frequency, induces cell cycle arrest at G2/M phase, causes cytokinesis failure and accumulates hyperploid cells. The events are possibly associated with ROS production, actin filament disorganization and centrosome aberration.

故从本实验的结果，我们认为槟榔子萃取物会增加微核频，诱导细胞周期停滞於G2/M phase，造成细胞质分缺损与多倍体细胞的增多；而这些现象可能与活性氧的生成，actin filament 的常与中心体的变有关。

3Glass capillary gas chromatography is used in the analysis of n-paraffin distribution of the diesel,and according to the results of the cold filter plugging point test ,it is conclude that the impressibility of DFI to fuel is not only connected with the alkyl side chain and the polarity group of medicine oneself ,but also the n -paraffin distribution of the diesel ,the component ,technology and directions for producing of fuel and so on.

该方法具有合成线路短、产率高、成本低的特点；(3)通过使用毛细管气相色谱法测定柴油中直链烷烃的组成与含量，及柴油冷滤点(Cold filter plugging point 简称CFPP)的测定得出结论，DFI 对柴油的感受性不仅与药剂本身的烷基侧链、极性基团有关，也与柴油的直链烷烃的含量、馏分组成、加工工艺等有关。

DR5positivity rate was negatively corre-lated with ratio of primary cell to infantilism cell,and posi-tively correlated with complete remission rate after inducing chemotherapy,and was not significantly correlated with AN-LL clinical types.

ANLL患者的DR5阳性表达率与诱导化疗后骨髓涂片的原始和幼稚细胞比例呈负相关，与诱导化疗后的缓解率呈正相关；DR5的阳性表达率与ANLL分型无明显相关。

This thesis aims at the theme of Yu Hua's novels via three sections: the first section analyses the cause of Yu Hua's novels' theme: tribulation from western culture, his hometown specialty, his childhood, and the totential memory of Institutional Revolution; the second section focuses on his enquiry of life and survival through violence and death,warmth and sorrow,which shows his theme of tribulation and its significance;the third section discoers the deep implication of Yuhua's novels theme from setting up the real mentality,suppassing the prior writings and exploring the meaning of life.

本文对余华小说创作主题的考察分三部分进行：第一部分分析余华小说苦难主题形成的原因：西方文化的滋润、童年生活的经验及早年工作的经历、文革的潜在记忆；第二部分通过文本解读，剖析作家在先锋立场下对人生与生存问题的拷问，分别从暴力与死亡、温情与悲悯两个方面，揭示余华小说的苦难主题及其意义；第三部分从构建精神的真实、超越先锋的写作以及生存意义的探寻等方面考察余华小说苦难主题的深层意蕴。

This paper has proposed the following explanation for this topic based on Social Couplings by Maturana, a cognitive biology scholar, organic view by Cooley, a symbolic interactionist , and model of a system in equilibrium by Argyle, a social psychologist:(1) the interaction is an act sequence of "hint-choice";(2) All the teacher and students in mathematics classroom have contributed to the formation and modification of consensual domain;(3) consensual domain in mathematics classroom is not an independent reality;(4) teacher and students' perception to consensual domain in mathematics classroom shall guide their behavior;(5) The coupling standard of consensual domain is not fixed for all observers;(6) the effect of mathematics enculturation should be reinterpreted.

本文整合认知生物学学者Maturana的社会耦合理论、符号互动论学者Cooley的有机观，以及社会心理学者Argyle的均衡系统模型，对共识域之本质与功能提出下列解释作为回应：(1)数学教室内的互动是一「暗示—选择」的行为序列；(2)师生皆对数学教室系统共识域之成型与改变有所贡献；(3)数学教室系统内的共识域并非独立於观察者之客观实在；(4)师生个体对数学教室系统共识域的知觉会指引师生的个体行为；(5)观察者描述数学教室共识域的耦合标准有狭义与广义之分；(6)数学文化传承的必然性应予重新解读。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。