成双成对的

It solves the problem that the unitary contour presentation can not correctly extract face contour in a face image which suffers from scale, rotation etc. The definition of the internal and external energy function is provided. At the same time, the global matching algorithm and local matching algorithm is given. The experiment shows that this presentation and the accompanying matching algorithm can be used to extract the face contour very well. So the image segmentation can be implemented by using it.②By analyzing the recognition principle of PCA method, we can conclude that the face images coming from different surrounding consist of different face image space. This is the essential reason that makes the generality of PCA method worse. Also, we give a measurement means to measure the distance from different face image space, so we can analyze face image space more conveniently.③We also construct various scale models and rotation pose models to detect the scale and rotating angle of face image to be recognized. The experiment results show that the detecting precision is very high. So it is good for face image feature extraction and face image representation.④Similarly, we construct local feature models of face image and utilize them to detect the local feature of face image. At the same time, we put forward a novel face image local feature detection algorithm, locating step by step. The experiment results show that this method can accurately detect the location of local face feature in a image.⑤A novel face image presentation model, dual attribute graph , is put forward. Firstly, it utilizes attribute graph to present the face image, then exact the local principal component coefficient and Gabor transform coefficient of thc pixels which corresponds to the nodes of the graph as the attribute of the nodes. This representation fully makes use of the statistical characteristic of the local face feature and utilizes Gabor transform to present the topographical structure of face image. So DAG has more general property.⑥Based on the DAG presentation, we give a DAG matching function and matching algorithm. During the design of the function and algorithm, the noise factor, e. g., lighting, scale and rotation pose are considered and tried to be eliminated. So the algorithm can give more general property.⑦A general face image recognition system is implemented. The experiment show the system can get better recognition performance under the noise surrounding of lighting, scale and rotation pose.

本文在上述研究的基础上，取得了如下主要研究成果：①构造了一个通用的人脸轮廓模型表示，解决了由于人脸图象尺度、旋转等因素而使得仅用单一轮廓表示无法正确提取人脸轮廓的问题，并给出了模型内、外能函数的定义，同时给出了模型的全局与局部匹配算法，实验表明，使用这种表示形式以及匹配算法，能够较好地提取人脸图象的轮廓，可实际用于人脸图象的分割；②深入分析了PCA方法的识别机制，得出不同成象条件下的人脸图象构成不同的人脸图象空间的结论，同时指出这也是造成PCA方法通用性较差的本质原因，并给出了不同人脸空间距离的一种度量方法，使用该度量方法能够直观地对人脸图象空间进行分析；③构造了各种尺度模板、旋转姿势模板以用于探测待识人脸图象的尺度、旋转角度，实验结果表明，探测精确度很高，从而有利于人脸图象特征提取，以及图象的有效表示；④构造了人脸图象的各局部特征模板，用于人脸图象局部特征的探测；同时提出了一种新的人脸图象局部特征探测法---逐步求精定位法，实验结果表明，使用这种方法能够精确地得到人脸图象各局部特征的位置；⑤提出了一种新的人脸图象表示法---双属性图表示法；利用属性图来表示人脸图象，并提取图节点对应图象位置的局部主成分特征系数以及Gabor变换系数作为图节点的属性，这种表示方法充分利用了人脸图象的局部特征的统计特性，并且使用Gabor变换来反映人脸图象的拓扑结构，从而使得双属性图表示法具有较强的通用性；⑥在双属性图表示的基础上，给出双属性图匹配函数及匹配算法，在函数及算法设计过程中，考虑并解决了光照、尺度、旋转姿势变化等因素对人脸图象识别的影响，使得匹配算法具有较强的通用性；⑦设计并实现了一个通用的人脸图象识别系统，实验结果表明，该系统在图象光照、尺度、旋转姿势情况下，得到了较好的识别效果。

The DSC results showed that calcium carbonate,sodium benzoate and terephthalic acid were the nucleating agents of polypropylene with high thermal stability of the nucleating effect,while the thermal stability of nucleating effect of pimelic acid,suberic acid,azelaic acid,and the two component nucleating agents suberic acid/calcium carbonate and azelaic acid/calcium carbonate were poor.

研究了碳酸钙、苯甲酸钠、对苯二甲酸和脂肪二元酸：庚二酸、辛二酸、壬二酸及其与碳酸钙组成的双组分成核剂对聚丙烯结晶成核效果的热稳定性。结果表明，高熔点物质碳酸钙、对苯二甲酸、苯甲酸钠的成核效果的热稳定性高，而脂肪二元酸的成核热稳定性低。庚二酸与碳酸钙组成的双组分成核剂的成核热稳定性高，但辛二酸、壬二酸与碳酸钙组成的双组分成核剂的成核热稳定性没有得到改善。

The DSC results showed that calcium carbonate,sodium benzoate and terephthalic acid were the nucleating agents of polypropylene with high thermal stability of the nucleating effect,while the thermal stability of nucleating effect of pimelic acid,suberic acid,azelaic acid,and the two component nucleating agents suberic acid/calcium carbonate and azela...

研究了碳酸钙、苯甲酸钠、对苯二甲酸和脂肪二元酸：庚二酸、辛二酸、壬二酸及其与碳酸钙组成的双组分成核剂对聚丙烯结晶成核效果的热稳定性。

Plyfil composite yarns is similar to two-ply yarn structures.

纺纱方法决定着成纱结构，成纱结构与纱线组成原料又决定了纱线的性能。sirofil复合纱线纺纱时长丝与短纤纱须条的间距及长丝的张力，plyfil复合线加工时二组分间并线张力对成纱结构及纱线的性能有着重要影响。sirofil复合纱的成纱横截面呈近似圆形结构，长丝位于成纱的一侧；纵向呈有"股线螺纹"的单纱外观。plyfil复合线具有类似于传统双股线的横截面和纵向外观。

Second, ReC13 being chosen as raw materials are pressed into dipolar plate, which was analyzed and compared.

其次，加入氯化稀土改性酚醛树脂，压制成双极板，并对改性酚醛树脂制成的双极板性能作了分析和比较。

Allowed the date that" year" indulge in atrocities on the whole, the common people treat this terrible night as to close to come then very, call" year end", and figured out a the whole set to celebrate New Year's Eve the way of the pass:Each time to this evening, each per families work well the supper in advance, turn off the clean cooking stove, then chase a fastening with all stockade of chicken, the house hospital in front and back the doors all seal, hiding to eat" New Year's Eve dinner" in the house, because of this dinner have fierce 吉 don't 卜 of meaning, so buy very flourishing, in addition to wanting that the whole family the old and the young rounds together to have a meal to mean in peace and harmony and reunitedly, return the beard at have a meal to provide the worship of ancestors before and first first, the spirit of the imprecation ancestry protect, spending this night safe and sound, after eating the supper, who all dare not the sleeping, pushing to sit together to talk away to encourage.

到了宋代，人们便开始在桃木板上写对联，一则不失桃木镇邪的意义，二则表达自己美好心愿，三则装饰门户，以求美观。又在象征喜气吉祥的红纸上写对联，新春之际贴在门窗两边，用以表达人们祈求来年福运的美好心愿。为了祈求一家的福寿康宁，一些地方的人们还保留着贴门神的习惯。据说，大门上贴上两位门神，一切妖魔鬼怪都会望而生畏。在民间，门神是正气和武力的象征，古人认为，相貌出奇的人往往具有神奇的禀性和不凡的本领。他们心地正直善良，捉鬼擒魔是他们的天性和责任，人们所仰慕的捉鬼天师钟馗，即是此种奇形怪相。所以民间的门神永远都怒目圆睁，相貌狰狞，手里拿着各种传统的武器，随时准备同敢于上门来的鬼魅战斗。由于我国民居的大门，通常都是两扇对开，所以门神总是成双成对。唐朝以后，除了以往的神荼、郁垒二将以外，人们又把秦叔宝和尉迟恭两位唐代武将当作门神。相传，唐太宗生病，听见门外鬼魅呼号，彻夜不得安宁。于是他让这两位将军手持武器立于门旁镇守，第二天夜里就再也没有鬼魅搔扰了。

In order to probe the relationships between wave equation offset domain common image gathers/angle domain common image gathers with migration velocity, we quantitatively derive the changes of ODCIGs and ADCIGs along with migration velocity on the assumption of uniform velocity medium with a horizontal reflector. We come to conclusion that ODCIGs are hyperbolas with half offset; on the contrary, they are ellipses. Combined with the results of depth focusing analysis, we find the apparent incident angles in ADCIGs are larger than the real incident angles when the migration velocity is larger than the true one and vice versa. With lower migration velocity, the residual moveout on ADCIGs is an ellipse with the tangent of apparent incident angle; otherwise, it's a hyperbola.

为了得到波动方程偏移距域共成像点道集和角度域共成像点道集与偏移速度的关系，在匀速单层水平反射情况下，对ODCIGs和ADCIGs随偏移速度的变化进行了定量的推导，得到偏移速度偏小时ODCIGs与半偏移距成双曲关系，反之成椭圆关系；结合深度聚焦分析，得到偏移速度偏大时ADCIGs中视入射角大于真入射角，反之，小于真入射角；在速度偏小时，ADCIGs上剩余时差与视入射角的正切值成椭圆关系，反之成双曲关系。

It is a further object of the invention to provide a method of assembly of a foldable plastic slider comprising a body having a depending separator finger and a pair of foldable wings, with a profiled plastic reclosable fastener particularly suited for thermoplastic bags for opening and closing the fastener comprising the steps of positioning a plastic bag having a plastic reclosable fastener along the top edges of the front and back faces of the bag to receive the foldable plastic slider in straddling relation, the fastener comprising a first interlocking element having a female fastener profile attached to one of the faces of the bag and a second interlocking element having a male fastener profile attached to the other face of the bag, inserting the plastic separator finger between the first and second interlocking elements, and forming the slider in straddling relation around the male and female fastener profiles at the top edges of the bag by folding the pair of wings downwardly toward the plastic separator finger and against the opposite sides of the body, and securing the pair of wings to the opposite sides of the body in fixed relation with the separator finger to form a pair of side walls for the slider whereby movement of the slider in one direction opens the fastener elements and movement in the opposite direction recloses the fastener elements.

资讯科技是提供一个组成一个有一只靠区分者手指和一双可折叠的翅膀身体的可折叠的塑料滑动器的一个集会的方法发明的一个较进一步的物体，由于一特别地描绘塑料的 reclosable 牢系工具轮廓为打开而且关闭组成放置一个沿着袋子的前面和后面脸的最高边缘有一个塑料的 reclosable 牢系工具在跨立关系方面接受可折叠的塑料滑动器的塑料袋子的步骤牢系工具为热后可塑性的袋子适合，组成一种第一的联锁元素的牢系工具对袋子的脸之一和一种第二种联锁的元素附上女性的牢系工具描绘附上男性的牢系工具描绘到另一个袋子面对，插入塑料的区分者手指在第一和秒联锁的元素之间，而且形成滑动器在向塑料的区分者手指向下地在折叠双翅膀旁边的袋子最高边缘在男性的和女性的牢系工具的周围跨立关系描绘方面和反对身体的相反边，而且固定到与区分者手指的固定关系的身体相反边的双翅膀为一个方向的滑动器的运动打开相反的方向牢系工具元素和运动的滑动器形成一双旁的墙壁再关牢系工具元素。

For the calculations of Mon (n= 2-55) clusters, the linear and planar clusters have a strong tendency to form diatomic pairs to assemble short-long bonds alternation structures which makes them like non-metallic clusters, the short bonds are characterized as covalent non-metallic bonds and the long ones are much like weak metal bonds.

本文首先计算了各种不同结构的Mon（n=2-55）原子簇，发现一维和二维Mo原子簇表现出了一定的非金属原子簇的性质，簇中原子有明显的成双原子对趋势，致使原子簇具有短-长键交替的几何结构，短键和长键分别呈现强共价键和弱金属键的特性。

As same as the above-mentioned reason, because theconditions at the inside straight boundary of the binarycomposite material can not be easily satisfied, here, anelastic circular inclusion with large radius is used to replacethe upper half space of the binary composite material, so the〓mary binary composite mater ial problem can be changed〓the scattering problem of a circular elastic inclusion andto the scattering problem of a circular eastic inclusion and〓circular cavity in an infinite space to the steady incident〓wave.

与前面两个问题的理由一样，同样，由于问题中双质复合材料的内部直边界上的边界条件不易解析满足，为此，本文采用了一个半径很大的弹性实夹杂来代替问题中双质复合材料的上半空间部分，而将原来的双质复合材料问题转化成了无限大空间中一圆形弹性夹杂和一圆孔对稳态P波的共同散射问题，根据该问题的特点写出了弹性夹杂内外波场中波函数的一般形式解，利用该问题中夹杂和圆孔处的位移和应力的连续条件，并采用复数傅立叶级数展开技术将其化为一个仅包含问题波函数中未知系数的无穷线性代数方程组，在满足一定计算精度的前提下，通过有限项截断进行近似求解，进而讨论了双质复合材料中圆孔边界处的动应力集中系数随不同入射角、圆孔的不同位置、以及入射波的不同无量纲波数的变化和分布情况。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。