类并

According to the experience investigation on construction and development of mathematics and application mathematics specialty in our country main economic typal institutions of higher education, some questions on which are discussed, the strategy are also set up.

依据对全国主要经济类高校数学与应用数学专业建设与发展经验的调查，论述了关于经济类高校数学与应用数学专业建设与和谐发展的若干问题，并提出了相应的基本发展战略。

A pure and single K+ current of ultrarapid delayed rectifier K+ current or transient outware K+ current is respectively expressed on Xenopus Oocytes. This is a moderm pharmacological model for evaluation class Ⅲ antiarrhythmiv durgs, overcomes many defcts such as lacking human fresh cardiac muscle cells as material and co-expression of many currents on cell membrane. A new compound A1998 from Ocean material is evaluated in this model for class Ⅲ antiarrhythmic functions.

5和Kv4.2cDNA转录为mRNA，然后将其分别注入蟾蜍卵母细胞上：在蟾蜍卵母细胞上分别获得纯净、单一的超速延迟性整流钾电流(Ikur，ultrarapid delayed rectifier K+current)和瞬间外向钾电流(Ito，transient outward K+current)表达，克服以往在筛选评价抗心律失常药物时，人新鲜心肌细胞取材困难、多种电流在细胞膜表面共同表达等缺点，从而建立评价Ⅲ类抗心律失常药物的先进药理模型，并筛选具有Ⅲ类抗心律失常药理作用的新化合物A1998。

The NetEvent class provides a foundation for guaranteed, guaranteed ordered and unguaranteed message transmission. NetEvent uses the same class instance creation mechanism as the console, but rather than instantiating by name, NetEvents use a class id, assigned when the console initializes.

NetEvent类提供了保证传输的基础，它保证了顺序和不保证的消息传输，NetEvent使用了和console同样的创建机理，但是它不是按照名字进行初始化，而是按照类id来进行，并当控制台初始化的时候得到赋值。

If a phototypesetter is an intermittence type, the memory of controller is used only to buffer a section and the buffer of whole page lattice is unnecessary. If a phototypesetter is an uninterruption type, a section of lattice is only generated and buffered for every time and then be converted into black-white sectional information, whose information quantity is much less, by microprogram for buffering whole printed sheet. On scanning, the black-white sectional information is real-restored into lattice to output.

当照排机是&走走停停&类时，控制器的存储器只需缓冲一段，而不必缓冲整版点阵；当照排机是&不许停顿&类时，则用分段方法每次只生成一段点阵并缓冲，然后用微程序把这一段点阵转换成信息量少得多的黑白段信息作整版缓冲，扫描时在实时下把黑白段信息复原成点阵输出。

The author believes that, Narrating in Vogue, a representative urban cultural style, first appeared in Shanghai in the second vicenary of last century.

笔者认为，&时尚叙事&是 20 世纪二三十年代出现于上海商业都市的一种时尚性的另类都市文化叙事，这类风格的叙事以时尚杂志或大众传媒手段为载体，借助时尚性、大众传播的传媒方式占领文化市场，直接驱入都市日常生活的各个时空，并且以生活政治的方式影响并左右着人们的思想行为和价值判断，在社会的现代化建设中发挥了亚意识形态的作用。

The results were showed that a high genetic diversity was observed using these molecular markers. Fifty-four Japanese plum cultivars were classified five groups from the dendrogram. The majority of cultivars of northern areas in China were clustered together, and cultivars of southern areas in China were clustered together. Therefore, the Japanese plum cultivars in China could be classified two groups: northern cultivars group and southern cultivars group.

结果表明：中国李品种间遗传相似系数较低，平均为0.451，从分子水平证明了我国中国李品种的遗传多样性很高；将供试中国李品种分为五类，其中第一类是原产我国北方地区的一些品种，第二是原产我国南方地区的一些品种；第三类是从国外引进的品种，并提出了将我国的中国李品种分为北方品种群和南方品种群观点。

The ISSR fingerprinting of 18 Japanese plum cultivars and 12 plum species or variety were established by using optimum system with primer 5"-9T-3"and 5"-9C-3", respectively. The identification rate of plum cultivars and species or variety was 100%. The effects of five important components on reaction of SSR were studied with Prunus salicina cv. Meilili. The results showed that the optimum concentration of five important components i.e. Tag DNA polymerase, Mg +, single primer, template DNA and dNTPs in 25 μL reaction system of SSR were 1.5u, 2.0mM, 0.8 μ M, 30~40ng and 0.16~0.24mM, respectively. The dendrograms of these cultivars was contructed according the Jaccard coefficient of similarity.

利用该优化体系，以5′-_9T-3′为引物，构建了中国李18个品种的ISSR指纹图谱，该引物可将这些品种完全区别开来；以5′-_9C-3′为引物，构建了李属6类种质资源的ISSR指纹图谱，该引物区分率为100％。4、中国李品种适宜的SSR反应分析体系是：25μL SSR反应体系中，Taq DNA聚合酶、Mg~(2+)、每个引物、模板DNA和dNTPs等5种成分的适宜浓度分别是：1.5u、2.0mmol·L~(-1)、0.8μmol·L~(-1)、30～40ng和0.16～0.24mmol·L~(-1)。5、采用RAPD、ISSR和SSR等三种分子标记技术对中国李品种资源54份和2个欧洲李品种进行了遗传多样性分析，并以品种间的遗传相似系数构建了Jaccard聚类树状图。

Otherwise, improve away the shortcomings of the two kinds of basic ant colony algorithm, and gain better performances of clustering.

本文分别研究了模拟蚂蚁群体觅食行为和筑巢行为的基本蚁群算法，并将其应用到文本聚类中，对这两种基本蚁群算法中存在的缺陷分别进行了改进，提高了聚类效果。

No.2 part includes No.4 and No.5 chapter. In No.4 chapter the paper calculates centrality indexes of the tourism destinations of 13 cities along Silk Road in Gansu. In No.5 chapter the paper analyzes these indexes with Hierarchical Cluster of SPSS 13.0, and adds up ancient ruins of these regions. Abasing centrality indexes of the tourism destinations, the result of Hierarchical Cluster and the concentration ancient ruins of these regions, the paper determines that Lanzhou City and Dunhuang City are No.1 grade tourism central cities, Jiayuguan City and Tianshui City are No.2 grade tourism central cities, Hezuo City Prefecture, Zhangye City and Wuwei City are No.3 grade tourism central cities, Pingliang City, Jingchang City and Linxia City Prefecture are No.4 grade tourism central cities. No.3 part includes No.6 and No.7 chapter.

第二部分(4-5)。首先提出了旅游中心性指数概念，设置旅游中心性指标体系，计算各&节点城市&的旅游地中心性指数，并对这些指数进行聚类分析，然后统计&节点城市&丝路文化遗存旅游资源的集中度，最后采用定性和定量相结合的方法，将丝绸之路甘肃段&节点城市&的中心性指数、聚类分析的结果和丝路文化遗存旅游资源的集中度结合起来进行分析，确定出兰州市和敦煌市为一级旅游中心城市，嘉峪关市+肃州区、天水市为二级旅游中心城市，合作市、张掖市和武威市为三级旅游中心城市，平凉市、金昌市和临夏市为四级旅游中心城市。

This paper concludes the clustering algorithms used in data mining and assorts them into 7 classes. Seven types of algorithms are summarized and their performances are analyzed here.

该文对数据挖掘中的聚类算法进行了归纳和分类，总结了7类算法并分析了其性能特点。

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。