长春市民办高校大学生体质健康现状与改善对策

民办高校大学生体质健康状况关系到民办教育对人才的培养。调查分析民办高校大学生体质健康状况,提出改善对策,会对提高大学生体质健康水平,为社会培养实用、高素质人才起到积极的作用。     

长春市民办高校大学生体质健康现状与改善对策

民办高校大学生体质健康状况关系到民办教育对人才的培养.调查分析民办高校大学生体质健康状况,提出改善对策,会对提高大学生体质健康水平,为社会培养实用、高素质人才起到积极的作用.     

景德镇陶瓷学院学生体质健康状况的分析研究

本文通过对当前大学生体质健康状况调查分析，提出相应的对策，为有效遏制高校学生体质健康状况普遍下降的趋势、全面提高大学生体质健康水平、培养社会需要的高素质人才起到积极作用。     

普通高校专科学生体质健康状况分析研究

对大学生身体形态、机能发育、素质发展与健康状况进行群体的动态分析，是研究大学生体质健康状况长期趋势的重要方法之一。本文通过对普通高校专科学生体质健康状况的分析研究，为普通高校体育教学改革提供科学依据。     

大学生体质健康影响因素及健康策略研究

一直以来大学生的体质健康状况是社会关注的焦点,教育部、国家体育总局也多次修改体质健康标准,开展亿万学生阳光体育运动,目的就是为了提高学生的体质健康水平,但通过调查表明效果并不明显,反而有所下降。本课题通过对唐山市大学生体质健康状况进行调查分析,找出影响大学生体质健康因素,并进行健康策略研究,为研究大学生体质健康提供理论依据。     

普通高校实施《学生体质健康标准》指标测试的调查与分析

采用比较研究、问卷调查、数理统计等方法,对普通高校实施《学生体质健康标准》测试的理解、目的、接受程度进行全面的比较分析。结果表明,大学生对《学生体质健康标准》的测试目的明确,72.10%的男大学生和72.89%女大学生非常关心自身的体质健康状况;89.83%的男大学生和87.03%的女大学生非常喜欢《学生体质健康标准》测试,认为测试指标能够反映体质健康状况;对《学生体质健康标准》的测试指标总体上可接受。     

廊坊市大学生体育活动现状与分析

通过问卷调查,对廊坊市大学生的健康状况及参加体育活动情况进行了分析与研究,旨在了解廊坊市大学生体质健康状况及参加体育活动的现状,为进一步提高我市大学生的体质和健康,促进高校体育教学改革提供参考依据。     

大学生体质健康现状测量与分析——以兴义民族师范学院为例

采用文献资料法、实验测量法、数理统计法等对兴义民族师范学院大学生体质健康状况进行分析，找出大学生体质健康存在的问题，并提出合理建议，以期提高大学生体质健康水平。     

我校大学生体质与健康状况调查与研究

本文采用问卷调查、文献资料调研、数理统计等方法,对我校大学生的体质与健康的进行调查与研究。健康体魄是青少年为祖国和人民服务的基本前提,是中华民族旺盛生命力的体现。尤其是当代的大学体质与健康状况更为重要,它直接关系到国家未来的发展,大学生拥有健康的体魄,顽强的体质是时代给予的使命。对其大学生的体质健康状况研究与分析也是刻不容缓的问题。     

2003年至2013年白族大学生体质健康状况动态分析与对策研究

以大理学院白族大学生为研究对象,通过测试法、统计法等方法,对2003年至2013年白族大学生体质健康状况进行动态分析,研究发现11年间白族学生的体质健康水平及各评价指标并未随时间的推移而提高,各年份男大学生的体质健康状况总体由良好降到了及格水平,女生的总得分也较2003年有所下降（略高于及格水平的下限）,男、女大学生的各项身体素质总体呈下降趋势。     

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。