中心的

First, we downloaded 11,600 research papers derived from Taiwanese medical centers in past five years via Pubmed journal database. Then, Impact factors of journals were collected to evaluate and rank the academic abilities of hospitals and authors.

本研究搜集Pubmed资料库检索内国内19家医学中心2003至2007年5年间上万篇的SCI论文，搭配其影响系数，评比与排名国内医学中心的学术水准。

H. Yeung, Yang, Liu, Yan Hong, ZHUANG Guang-Ping Tang a bright, Yang Fan, Liu Xiaobo, Gong Pengfei, Shou-Cheng Wang, Yangming Jun, ZHANG Min, Yu Alfonsin, Cao Xiuying, Wang JF, Yang Deming, LIU Chang, SONG Li Cai, ZHOU Bin, Ma Liang, Yu Gui-silver, Wujiang, Shaanxi Bureau of Surveying and Mapping, the National test of a large group, the State Bureau of Surveying and Mapping agencies, China Surveying and Mapping propaganda Center, the State Bureau of Surveying and Mapping Management Information Center comrades to attend the meeting.

参加国测一大队采访宣传的中央新闻媒体记者赵亚辉、段欣毅、杨维汉、杨光、刘军、殷泓、庄光平、汤一亮、杨晓凡、刘晓波、宫鹏飞、王守城、杨铭军、张敏、俞方辛、操秀英、王剑锋、戴明阳、刘畅、宋利彩、周斌、马亮、喻贵银、吴江，陕西测绘局、国测一大队、国家测绘局机关、中国测绘宣传中心、国家测绘局管理信息中心的有关同志参加会议。

Moreover, we used the rotation tripod to locate the lens at the center of rotation in order to avoid the dead angle at the center of the rotation position.

而且，使用了以镜头为旋转中心的定位云台就可以避开旋转中心位置的拍摄死角。

The 20S catalytic core of the 26S proteasome has the shape of a barrel made of four rings which are composed of seven differentαsubunitsα_1-α_7 at two outer rings and seven differentβsubunitsβ_1-β_7 at two inner rings at which the catalytic sites locate. Three of theβsubunits contain proteolyses sites, which are sequestered in the hollow interior of the 20S particle. Substrates enter the 20S through a narrow channel formed by theβsubunits, whose N-termini, depending on their conformation, can either obstruct or allow substrate entry and thus function as a gate. This entry channel is narrow and only permits passage of unfolded, linearized polypeptides.

哺乳动物26S蛋白酶体是由一个20S催化颗粒(catalytic particle，CP)和两个19S调节颗粒(regulatory particle，RP)组成的ATP(adenosine-triphosphate，ATP)依赖性蛋白水解酶复合体。20S CP是26S蛋白酶体的催化核心，它是由4个圆环堆叠形成的桶状复合物，其中两侧外环每个环是由α_1-α_7亚基组成，两个内环每个环是由β_1-β_7亚基组成，4个环的中央形成一个狭窄的内腔。2个β内环形成了20S CP的催化中心空腔，其内壁为催化活性位点所在地；外侧α环中心的孔道是底物到达催化中心空腔的通道，一般被α亚基上的N末端所封闭，阻止胞内非目的靶蛋白进入20S CP内被降解破坏。

In this paper, a varieties of concepts of compactness of sets and sunsets are introduced in a complex locally convex space, which are respectively the generalizations of the known sunsets and convex sets. By establishing the relationship between restricted p-centers of a set in a complex locally convex space and restricted Chebyshev centers of the corresponding set in the quotient space with respect to ker, characterizations and uniqueness of restricted p-centers of sets in a complex locally convex space are obtained. These results are better than any other known ones when we restrict them in real normed linear spaces and real locally convex space.

本文首先在复局部凸空间中引入了几种紧性及几种太阳集的概念，它们分别是已有紧性和凸集概念的推广；然后通过建立局部凸空间中集的限制p-中心和关于ker的商空间中对应集的限制Chebyshev中心的关系，来研究局部凸空间中集的限制p-中心问题，本文即使是在实赋范空间和在实局部凸空间中所得的结果都分别是有关已知结果的深化和推广。

The teaching term took sixteen periods. The curriculum contained two topics,"acid and base", and "Taiwan's climate". Experimental treatments were teaching method. The research tools utilized in the study were " Science Concept Comprehension Test, Science-related Attitudes Scale, Problem Solving Ability Test and Questionnaire on the Attitude toward Science Teaching". A pretest administered before the experimental treatment and a posttest was held after the treatment. The data of SCCT, SRAS, and PSAT collected from pretest and posttest were analyzed by two-way ANOVA. Responses from the QAST were analyzed by ANOVA.

本研究的实验处理为以问题为中心的合作学习教学，研究工具包括「科学概念理解问卷」、「科学相关态度量表」、「问题解决测验」、「对自然科的教学态度问卷」、「教学检核量表」及「问题中心教学自我评估量表」，分析「科学概念理解问卷」、「科学相关态度量表」和「问题解决测验」资料时，以前测经验和教学法为自变项，后测为依变项，进行二因子变异数分析；「对自然科的教学态度问卷」采用单因子变异数分析；「教学检核量表」及「问题中心教学自我评估量表」则用来检核研究者的教学是否符合研究者的研究设计；在质性资料的部分，则分析学生的上课纪录、教师教学反省纪录及对自然科教学的态度问卷的理由。

A pivotal problem to recognize of the precise position of laser facula has been solved in the process of design work: Firstly the method of background-subtraction is used to eliminate or weaken the affect of background light. Secondly the image threshold segmentation operation and morphologic operation are used to locate the sketchy position of laser facula ; Then the new method of Extracting Edge are designed based on character of laser facula , by using this method in the search area the edges of laser facula can be extracted effectively; At last the optimum picture of laser facular is selected by using the triggering function of hardware and function of software. The exact result can be obtained only by image processing to optimum picture.

在设计过程中解决了精确确定激光斑中心位置这一关键问题：首先利用减背景法，消除或减弱背景光的变化对确定激光光斑中心的影响；再对减完背景后的图片进行阈值分割和二值化处理以确定激光光斑的粗略位置；根据本文激光光斑的特征，设计了一个有效的边界提取算法，对指定区域进行提取激光光斑边界操作，精确的确定激光斑中心位置；最后利用硬件的触发功能和软件编程实现了激光光斑最佳图片的判读，只有对最佳图片进行图像处理得到结果才是准确的。

We can compute three dimensionalvelocity distribution on a planar domain of flow field based on conventional ParticleImage Velocimetryand 3D reconstruction theory of stereophotogrammetry.

在流场空间两个不完全交叠的体积元(映射为两个摄影机象平面上以同名点为中心的两个相同大小的判读小区域)中的示踪粒子的统计性质都能同样表征这两个体积元公共中心的流体运动的假设下，PIV技术与体视三维重建理论的结合，可以将原PIV技术中二维统计平均的概念扩展为三维统计平均，并且在确定体积元公共中心位置之后，直接实现空间流体体元的三维位移重建。

The paper also points out that, modern logistics can restructure and upgrade the regional industries by means of the effect of industrial relevancy when it serves for the social production and residents living, engenders new industries and enhances the internal proportions of the third industry. By integrating related functional operations, modern logistics is able to change the links between the knots and lines from random and loose connection to a kind of spatial structure of smoothness and steadiness, with which block and friction would be lessened and the function of regional economic constituents amplified while the regional income and the strength would be improved as a whole. Through intensifying the advantage of allocation of the centers of region, modern logistics induces regional elements of development to move towards advantageous locations while bringing key urban cities effects of scale economy and agglomeration economy, it then can be regarded as an operational platform for potentiating the growing polar of urban cities and boosting up the developing level of hinterlands, and an effective measure to balance urban and rural development and development among regions.

论文认为，现代物流在为社会生产和生活服务、形成新的产业形态、改善第三产业内部比例关系的同时，通过产业关联带动效应促进区域整体产业结构的优化升级；现代物流通过整合相关功能性活动，将经济网络中节点与线路之间随机连接、松散联系转变为顺畅交流、稳定合作的空间构造，从而减少区域经济运行中的阻滞性因素，放大区域经济发展要素的功能，提高区域经济系统整体效益和经济实力；现代物流通过强化经济中心的区位优势，促进区域经济发展要素向优区位运动，给经济中心城市带来规模效应、聚集效应和扩散效应，是强化中心城市增长极地位和提升经济腹地发展水平的操作平台，因而也是统筹城乡发展和区域发展的重要手段。

Furthermore, the CIRMF's primatology centre is among the largest in Africa. It contains around 450 primates, including gorillas, mandrills and macaques, half of them housed in a forest enclosure."The natural hosts for SIV and STLV and many other viruses are African primates," says Bettina Salle, the veterinary surgeon who runs the primate centre."We have the ideal animal colonies and geographical location for research into the viruses in their natural hosts."

此外，这个中心的灵长类动物学研究中心是非洲最大的，共有大猩猩，大狒狒，短尾猿等灵长类动物450只约有一半的动物都被圈养在森林边缘在灵长类研究中心负责兽医工作的BS说：&SIV和STLV以及其他类似病毒的天然宿主是非洲灵长类动物对于我们来说，处于这些动物的聚集地，对于我们研究这些天然宿主身上的病毒真是太理想了&

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。