包装设计应对贸易技术壁垒的措施探讨

从加入WTO后国际贸易壁垒的新变化入手，探讨了包装设计将面临巨大挑战－技术壁垒，提出了包装设计的应对措施：注意包装设计与国际标准接轨，加强包装的绿色化，大力推进技术创新。另外，应注意包装设计的人文化因素，迎合特定的国际消费群体。     

缓冲包装技术发展趋势

缓冲包装是包装工程中的重要组成部分。缓冲包装技术在包装流通环境、包装材料、以及包装设计理论三方面已有了最新的研究成果，缓冲包装技术将向以下三个方面发展：即缓冲包装设计的计算机化，新材料的不断研制和开发，环保意识的不断增强。     

基于“互联网+”的地域文化包装设计方案创新研究

数字信息技术的发展为包装创新发展提供了技术支持，在此背景下，课题组搭建了包装创新平台网站，设计了包装创新平台功能，建立了赣西地域文化设计资源库，突出地域文化元素在包装设计中的综合表现，并以具体案例来呈现“互联网+”背景下包装设计理念创新思路。     

试论商品包装的环保性设计

商品包装在服务于经济的同时,又破坏了环境,最终必将阻碍经济的发展,为此,商品包装设计必须树立“设计为人”的思想,使包装服务于经济的同时,服从于环境,实行绿色包装,改善人类的生活环境。     

包装设计教学的实践和探索

我国的包装设计已走过了20多年的发展历程，包装设计教学现在虽然已经进入现代设计思维当中，但在实际的教学实践中，却存在着观念上、方法上、手段上的落后等问题。包装设计教学需要融入包装大环境，以新的包装理念为指导，确立适应时代的教学观念、教学体系、教学方法，利用现代科技，以期达到培养综合设计人才和引导经济的目的。     

谈谈包装装满的文字设计与构成

文字是商品与消费者交流的基本要素，可以是包装装潢的点、线、面三要素中的任何一个要素，在现代包装装潢设计中地位突出。文字具有装饰功能，也是传达信息和装饰包装的图案、符号，更是包装个性化的集中体现。文字字体的设计应考虑产品的定位，应注重美术字和传统书法字在包装装潢上的应用。     

缓冲包装技术发展趋势

缓冲包装是包装工程中的重要组成部分。缓冲包装技术在包装流通环境、包装材料，以及包装设计理论三方面已有了最新的研究成果，缓冲包装技术将向以下三个方向发展：即缓冲包装设计的计算机化，新材料的不断研制和开发，环保意识的不断增强。     

谈商品包装的功能及包装设计的绿色化

在我们的生活中，商品的包装起着越来越重要的作用，文章对商品包装的功能及包装设计的绿色化谈了自己的看法。     

中国包装设计的新趋向探析

随着国内市场经济的逐步深入,针对超级市场等普通零售环境的商品成为主流,商品要从货架上千千万万同种类别的商品中脱颖而出,不得不主要依赖于包装的装潢设计。而随着全球对绿色包装的响应,中国包装设计也在探索它的绿色之路。本文通过对我国包装设计的发展与现状分析,从包装装潢设计与包装造型设计出发,分析我国包装设计的创新趋向。     

浅析现代包装设计的民族化

包装设计的出路在于创新。包装设计的民族化反映的是时代精神，把现代包装设计作为一种文化形态来对待，结合创新和时代的精神，那么包装设计文化既有创新精神、民族性，又有时代性；它们虽然表现在文化结构的不同层面上．但共同构成了包装设计文化的整体。     

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.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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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.     

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     

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。