引领道德进步:大学教育的重要责任

大学是道德教育的重要阵地,高校在公民道德教育中担负着重要的责任。其责任主要体现在高校是社会主义道德教育的重要基础,高校是引领道德教育的重要力量,大学教育是社会主义公民道德教育的重要枢纽。加强大学教育的道德责任意识,对新形势下人才培养具有重要意义。     

重要极限limn→∞(1+(1)/(n))n=e的证明和应用研究

本文讨论了重要极限的证明方法、推广形式及实际应用,对于更加深刻的理解重要极限,灵活的运用重要极限有很重要的作用。进一步利用重要极限来解决实际问题,以达到将理论知识与实际问题完美结合的目的。     

高校在建设创新型国家中的使命和对策

高校既是培育具有创新能力的高素质人才的重要基地,也是知识创新、技术创新的重要源泉和国家创新体系的重要组成部分,在建设有中国特色创新型国家的进程中肩负着重要的历史使命。     

基于GIS和总量控制理论的区域公路网布局研究

在研究总量控制理论的基础上,运用GIS的最小生成树原理和节点重要度布局法对郑州市的节点体系的重要度进行了聚类和分级;在计算路段重要度和路线重要度基础上,生成了公路网重要度最大树,并对郑州市公路网的布局进行了分层和优化.     

人事档案管理在企事业单位中的重要意义

人事档案管理工作是企事业单位管理工作的重要部分,人事档案是一个人经历和德才表现的历史记录,是人才信息的重要载体,是人才的重要信息源,管好用好人事档案,对人才资源开发起着重要作用。     

甘肃省武威市农业机械化发展浅析

农业机械是现代农业的重要物质基础,是农业现代化的重要内容和标志。加快农业机械化的发展,既是改善农民生产生活条件、提高农业劳动生产率的重要措施,也是缩小城乡差别、提高农业和农村经济整体水平的重要条件,对于巩固发展农业基础地位,促进农业和农村经济全面、协调、可持续发展具有重要意义。     

浅议体育在素质教育中的作用

体育既是素质教育的重要内容,又是素质教育的重要手段,正确认识和发挥体育在素质教育中的作用具有重要意义。     

情感教育在学生管理工作中的应用

情感教育作为现代教育技术的重要手段,在大学生的教育管理工作中起着重要作用。遵循情感教育的自身规律和应用原则,探讨情感教育的重要作用,对做好高校学生工作具有重要意义。     

大学科技园产学研实践平台建设与研究——以山东科技大学科技园为例

随着高等教育的改革和现代经济的快速发展,研究适应新时期高校实践教学体系建设,提高学生的综合素质、综合能力,培养学生创新实践能力和适应工作环境的能力,就显得非常重要.而大学科技园作为国家创新体系的重要组成部分和自主创新的重要基地,是高校实现产学研合作及社会服务功能的重要平台之一,是高校开展实践教学,提升学生实践能力的重要场所,也是实现应用型人才培养目标的重要基地.     

浅谈辅导员队伍的师德建设

加强师德建设是教师队伍建设最为重要的内容,高校辅导员队伍作为高校教师的重要组成部分,发挥着重要的育人功能。进一步认识和加强辅导员队伍的师德建设,有着重要的意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

英文诗歌中的喻类修辞

为了有助于提高英文爱好者的个人情操、文化素养和学习兴趣,以及专业人员对英语学习和研究进行多途径的探索,本文通过一些精选诗歌的引证和分析,着重论述了喻类修辞法在英文诗歌中的运用其及效果。     

Man Is Unable to Change the Miserable Life——Analysis of the Arrangement of Four Characters in The Glass Menagerie

Tennessee Williams is considered as one of the most important American playwrights since World War II.The Glass Menagerie is his first successful drama,which describes a tragic situation of family and means to say that Man is unable to change the miserable life,no matter whatever means he try,This essay focuses on the analysis of the arrangement of the four main characters:Laura.Amanda,Jim and Tom to reveal the theme.Laura is fragile.Amanda is brave.Jim is vital.Tom is sensible.And all of them develop and try the different means to struggle against life,but fail tragically.With the evidence,the paper comes to conclusion naturally that Man is unable to change the miserable life,and he dooms to fail.     

Characterization of root-nodulating bacteria on Retama raetam in arid Tunisian soils

The aim of this study is to investigate the diversity of Retama raetam root-nodule bacteria isolated from arid regions of Tunisia. Twelve isolates, chosen as representative for different 16S rRNA gene patterns, were characterized by 16S rRNA gene sequencing and phenotypic analysis. Isolates were assigned to Sinorhizobium, Rhizobium and Agrobacterium. Symbiotic properties of Sinorhizobium and Rhizobium isolates showed a large diversity in their capacity to infect their host plant and fix atmospheric nitrogen. Strain RK 22 identified as Rhizobium was the most effective isolate.     

An Affordable Accurate Evaluation of the Binding Conformations Predicted by Molecular Docking Studies in Bio-System

正Recently,docking has been widely used to predict the binding-modes of protein-inhibitors,when the crystal complexes structure was absent.Most docking algorithms are able to generate a large number of probable conformations,it,however,is difficult to effectively evaluate these docking poses and identify the most reasonable bindingmode.In the present study,on the basis of the crystallographic data of human 3-hydroxy-3-methylglutaryl coenzyme     

WIMAX与WI-FI技术分析及联合组网

介绍了WiMAX与Wi-Fi两种无线宽带接入技术,并对两者之间的关系及相互之间的影响做了对比及分析,并对WiMAX的关键技术进行了详细说明,最后对两者的联合组网方式做了简单的探讨。