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This method,on one hand extractes the most efficient low features for lipreading,on the other hand,selectes features reasonably to improve their distinguishability.With 42-dimensional two-level visual features can get 77.8% rate of lip movement contents recognition for speaker-dependent cases.

此方法一方面提取了唇读的最有效的低级语义特征，另一方面更加合理地选择利用了特征的有效可区分性，使得用42维二级视觉特征，对特定人的唇动内容识别正确率达到77.8%。

In order to discover more large oil and gas fields, this study discusses how the hydrocarbon distribution is related to the accumulation features of paleokarst from many aspects such as Palaeozoic tectonic evolution, periods of welldeveloped paleokarst, features of paleokarst, origins of paleokarst, features of reservoir space and oil or gas traps of paleokarst, and so on.

为了在我国古生代碳酸盐岩中发现更多、更大的油气田，从古生代构造演化、古岩溶发育期次、古岩溶特征、古岩溶成因、古岩溶储集特征及控油气作用等方面，并以塔里木盆地为例论述了中国古生代海相碳酸盐岩古岩溶储集特征与油气分布。

That is that information processing of neural networks is viewed as the composition of the two steps: field organization and field action, in which, field organization transformation converts input pattern into relevant structure representation, extracting the underlying architecture features and forms a architecture representation in action transformation space; The field action transformation converts the features representation into expected output. In strategies, we use the dual affine coordinates in dual flat manifold as way of representation of field organization system and field action system, which established a theoretical framework of analysis the coupling mechanism of information processing from the view of point of structure representation and model generation.

在具体人工神经网络结构描述的策略上，利用对偶流形空间上的对偶仿射坐标概念分别表示场组织变换系统和场反应变换系统，建立起从问题的结构表示和模型生成两种观点来分析信息处理的理论框架；分析了有监督和非监督学习人工神经网络模型在神经场变换机理下的形式化描述。

Compared with the invariant features of single parameter group, entirely global affine invariant features are more applicable, and chapter 4 introduces a new global affine invariant feature extraction method called EC-ARC, which is based on the invariance in affine geometry.

然后，提出了扩展质心(Extended Centroid， EC)和仿射区域划分(Affine Region Cutting， ARC)的新概念，并在EC和ARC的基础上，结合仿射几何性质，提出了构造具有完全仿射不变性的特征提取方法EC-ARC。

For generating prototype correctly, the concepts of agnation, filiation, brotherhood between features are studied, and the method that distinguish the relations of features is given.

为了实现原型的正确构造，本文研究了特征之间的宗族关系、父子关系和兄弟关系，并给出了确定各种特征关系的方法。

Compared to the "real" Impreza , recently unveiled in its latest hatchback evolution, the concept created by Lars Martensson features a very aggressive styling with a short wheelbase, muscular wheelarches, huge tires and extreme features like the air scoop on the hood and the rear spoiler.

相较于"实质"impreza ，近曰推出其最新hatchback演变概念创造的拉尔斯martensson特点的一个非常进取的造型与短轴距，肌肉wheelarches，巨大的轮胎和极端的特点，象空气舀的发动机罩和尾部扰流器。

Based on the regulation of The farmer cooperative law, the author believes that those property possessed by the cooperatives has the features of nihitility and alternativeness, so that it can not realize the legislative objective of clearing the limit of property responsibility assumed by the cooperatives and its members and maintaining the market transaction safety. Moreover, these two features can also be harmful to the reliance interest, the self-interests and trading opportunities to the farmer cooperatives and hindering its long-term development.

基于《农民专业合作社法》的规定，合作社支配的财产具有虚无性与变动性的特点，不能实现明确成员以及合作社承担财产责任界限、保障合作社交易对象信赖利益和维护市场交易安全的立法目标，进而会损害合作社交易相对人的信赖利益以及合作社自身利益和市场交易机会，并阻碍合作社的长期发展。

The types of Subei basin, the structural features of main abundant hydrocarbons depressions, the features and genetic mechanisms of structural trap assemblages and the characters of oil-gas distribution are chiefly studied in this work with applying comparative structural geology, analytic structural geology and Earth dynamics, the control of the structure on oil-gas is generalized, and then the exploration targets were found based on these analysis.

综合运用比较构造学、解析构造学和地球动力学等方法，重点研究了苏北盆地成因类型、主要富烃凹陷构造特征、构造圈闭组合特征和成因、油气分布特征，总结了构造对油气分布的控制作用，在此基础上寻找有利的勘探方向。

Therefore, based on documents reports, through contrastive observation of 20-month-old natural senile mice, this study has confirmed that the anaplasia of subacute senile model mice was obviously similar to the features of 20-month-old naturally physiological senile mice. Mice in both two groups displayed dull color patterns, slow movements, insensitive responses and decrease of growth rates of body weight; hepatic and brain tissues in the mice presented senile features of sero-enzyme such as decrease in SOD activity, increase in content of lipid perhydrides and so on.

为此，本研究在文献报道基础上，通过与20月龄自然老化鼠的对比观察，证实：亚急性衰老模型鼠的退行性变化与20月龄自然生理性老化鼠特征的相近之处鲜明可见。2组均出现毛色暗淡，少有光泽，动作迟缓，反应不灵敏，体重增长率下降；肝、脑组织出现SOD活力下降，脂质过氧化物含量增高等血清酶学的老化特征。

If we make full use of the mid-infrared spectral features(i.e.,Christiansen Frequency features and reststrahlen bands),we could determine anorthite,olivine,quartz and alkali feldspar on the lunar surface successfully,which could not be accomplished by VIS-NIR spectra.

如果充分利用月球表面硅酸盐的红外光谱特征，即CF特征和Reststrahlen吸收带，将可以用于探测VIS-NIR光谱无法完成的探测目标：钙长石、橄榄石、石英和碱性长石等。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。