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A method of the surface combination based on classification or Euler Operation and the computation of the surface boundaries of a surface is offered to finish the geometry mapping of surfaces between half-edge model and the closed_shell branch of manifold surface model. Moreover, the concepts of conformal-shape geometrical mapping and topological mapping are given. The bi-directional conformal-shape topological mapping between half-edge model and the closed_shell branch of manifold surface model is proved.

提出了一种基于等价分类和欧拉操作的面片合成和曲面边界计算方法，完成了半边模型到流形曲面模型closed shell枝的曲面几何映射；给出了保形几何和保形拓扑映射概念，证明了半边模型到流形曲面模型的closed_shell分枝的双向保形拓扑映射。

The Pinyin model is Trigram that adds up same voice data in language model and it is a new link between original acoustic and language model.It can be used to obtain probability of interrelated Pinyin string.The results in experiments show that by using the model to make final process of the recognition of acoustic layer,the recognition rate of the top one can be increased 13 percent,and the rate of the front fine is similar with the...

拼音模型是累加语言模型中同音字的相关数据后得到的 3元模型，是在原来的声学模型和语言模型之间增加的一个新环节，可用来求取相关拼音串的先验概率，实验结果表明，用它作为声学层识别的后处理，可使第 1名的识别率提高 13个百分点，可使前 5名的识别率与原来声学模型输出前 10名的识别率相当

This paper adopts Hidden Markov Model in part-of-speech tagging for English texts.Firstly the authors intro-duce the improvement on Viterbi algorithm and the step in training computer by means of hidden Markov model.Sec-ondly,through a series of contrast experiments the authors come to the conclusions:The Bigram model is better than the Trigram model in terms of the performance-cost ratio.

利用隐马尔可夫模型对英语文本进行词性标注，首先介绍了对Viterbi算法的改进和基于HMM模型方法训练机器的步骤，然后通过一系列对比实验，得出两个结论：二元文法模型的"性能价格比"较三元文法模型更令人满意；词性标注集的个数对词性标注的准确率有影响。

Based on dynamic test data, using curve fitting and optimum method, three dynamic empirical model are developed according to the principle of minimizing errors, they are trilinear hysteresis model, variable linear hysteresis model and variable nonlinear hysteresis model.

对系统辩识模型作出了改进，把准静态特性的幂函数乘积模型与辩识模型相结合，形成了制动器的理论分析模型。

We build a Multi-Agent Sharing Model based on the Bar Model and it keeps the advantages of the past model. Besides, our new model improves the disadvantages about unadvisable setting of the individual behavior.

我们保留过去模型的优点，改善过去模型对於个体行为不合理的设定，以酒吧模型为基础，设计了一个符合真实状况的多人共享有限资源模型。

At last, all related problems due to ship type and towing speed influencing the quality of captured images and results were discussed. A ship model with V-shape bottom and protruding keel might cause some disadvantages for PIV measurements. The use of longer laser light ducts extending deeper is a possible solution. A ship model with light yellow paint will cause the unproportionate of light and will cause white background on captured images. It is suggested to re-paint the ship model in black or dark colors to solve this problem. In high-speed test conditions, a ship model's bow waves entrain large amount of air bubbles into water and those bubbles will block the view of camera causing some random black spots in the images. Thus, it is necessary to remove the useless black spot data and repeat the same test condition if statistics requires enough number of images.

本文讨论建立此系统之技术及实验方法，设备的架置方式和配置为一可调性调整之开放式架构，质点施放方法以一自制的施放架於实验前先布置於测试段中，并制定一实验流程规范，再分别针对实验所得滑航型及排水量型船模的流线方向及切流线方向各不同位置及船速之速度进行流场分析；实验结果发现不同船型会造成不同的实验困难：船形上突起之龙骨及V形船底会遮住照明光线，可利用较深之导管调整光页角度改善；而浅色船模表面会造成光线的不均匀，可以更改船模涂装颜色改善；高速实验的气泡会不定点的遮住光线，须先除去无资料区域并使用更多资料组数来改善。

Main points of this paper are as follows:(1) to explain emphatically and to prove the Jukes-Cantor Model, Kimura Model and the relationships of them;(2) to construct and to prove, using EM algorithm, the theorems of estimating best branches of DNA sequences having censored data for Jukes-Cantor Model under the conditions of rooted tree and unrooted tree respectively;(3) to construct and to prove, using EM algorithm, another three theorems of estimating best parameters of DNA sequences having censored data for Kimura Model under the conditions of rooted tree and unrooted tree.

本论文的重点在于解释和证明Jukes-Cantor模型、Kimura模型及两模型之间的关系；运用EM算法构造并证明Jukes-Cantor模型下含缺损数据的DNA序列构建有根树的最佳分枝长度估计定理；运用EM算法构造并证明Kimura模型下含缺损数据的DNA序列构建有根树的最佳参数估计定理。

Second, we point out that the AAM model contains redundant information between the shape and the texture on the basis of the study of AAM model. We remove the unsoundness, directly establish the relationship between the shape and texture, use texture to determine the shape, then establish PCA model of the difference image, and use this model to predict the next position to get the texture information form this position, and redetermine the shape and its position.

其次，在深入研究AAM模型的基础上，本文指出了AAM模型的形象模型包含了冗余信息，并对此进行改进，直接在形状和灰度之间建立起联系，由灰度确定形状，然后再对差分图象建立起PCA模型，由此模型预测下一步的位置变化，在从此位置上获得灰度信息，重新确定形状及其位置。

When the scale of model application is considered, soil erosion model can be classified into upland model and watershed model.

主要从这4个方面入手，介绍了国内外土壤侵蚀量预报模型研究的主要成就，指出了现有模型的不足。

12H treatment group compared with 12h model group: the level of SOD, MDA of the Gardenoside group is no different with the model group; the level of the SOD of the Baical in group increase and the level of MDA is no different; the level of SOD of the Concha Margatitifera Usta is no different and the MDA of it decreased than the model; the level of SOD of the Cholic Acid group increased and the level of MDA decreased; the level of SOD of the Hefang Group increased and the level of MDA of it decreased than the model group.

考虑nNos可能只是参与缺血早期的神经毒性作用。到缺血24小时这一时程已经减低或耗竭。大鼠局灶性脑缺血12小时模型组缺血脑组织P53光密度值含量较正常组明显增高（p＜0.01）。珍珠母治疗脑缺血12小时组缺血脑组织P53光密度值较缺血12小时模型组明显降低。胆酸治疗脑缺血12小时组缺血脑组织P53光密度值较缺血12小时模型组明显降低（p＜0.05）。栀子苷治疗脑缺血12小时组缺血脑组织P53光密度值较缺血12小时模型组明显降低（p＜0.05）。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。