网络环境下构建新型英语教学模式

从CAI、多媒体到教育网络，网络英语教学，即基于Internet的网络英语教育，正冲击着传统的教学模式，并正成为主流的教学模式．阐述了基于网络环境下的外语教学的特点和形势，并对网络环境下的英语教学所应注意的问题提出了自己的建议．     

Monitoring the sandstorm during spring season 2002 and desertification in northern China using SSM/I data and Getis statistics

A massive sandstorm enveloped most part of northern China during the spring season 2002. Monitoring the evolution of sandstorm and desertification has become one of the most serious problems for China's environment. Since 1989, one of the most advanced and operational passive microwave sensors is the DMSP SSM/I (special sensor microwave imager) operated at seven channels (19, 37, 85 GHz with the vertical and horizontal polarization and 22 GHz with vertical polarization only). In this paper, the sandstorm and desertification indexes, SDI and DI, are derived from the radiative transfer equation, and are employed with multi-channel measurements of the DMSP SSM/I for monitoring the sandstorm and desertification in northern China. Some SSM/I data in 1997 and 2001 are employed. The algorithm of Getis statistics is developed to categorize the spatial correlation and its evolution these days. It is demonstrated that the SSM/I indexes, SDI and DI, and its Getis statistics are well applicable for monitoring the sandstorm and desertification.     

PDE-Based Medial Axis Extraction and Shape Manipulation of Arbitrary Meshes

Shape skeletonization （i.e., medial axis extraction） is powerful in many visual computing applications, such as pattern recognition, object segmentation, registration, and animation. In this paper, the authors expand the use of diffusion equations combined with distance field information to approximate medial axes of arbitrary 3D differential properties. It offers an alternative solids represented by polygonal meshes based on their but natural way for medial axis extraction for commonly used 3D polygonal models. By solving the PDE along time axis, this system can not only quickly extract diffusion-based medial axes of input meshes, but also allow users to visualize the extraction process at each time step. In addition, the proposed model provides users a set of manipulation toolkits to sculpt extracted medial axes, then use diffusion-based techniques to recover corresponding deformed shapes according to the original input datasets. This skeleton-based shape manipulation offers a fast and easy way for animation and deformation of complicated mesh objects.     

安庆方言疑问代词体系

安庆方言疑问代词主要有"哪、么、几、好"等几组,它们的组合形式和语法功能与普通话存在较大差异,本文对此做了较详尽的探讨。     

中国动漫产业的崛起

文章从中国动漫产业现状入手,举例说明中国动漫业目前所存在的瓶颈,并由此提出了振兴中国动漫业的建议.且阐述了动漫产业任重而道远的原因.     

汽车尾气分析仪中的大气压力补偿技术

汽车尾气分析仪主要是通过检测汽车尾气中不同气体的含量,以达到合理控制的目的。在对气体浓度的检测中,大气压力的影响不能忽视。本文围绕这个问题,详细讨论了大气压力影响的补偿方法。     

高校教学档案管理刍议

高校教学档案，包涵广泛的内容，有其特有的属性。教学档案在教学活动中形成，反过来又服务于教学活动。应采取积极措施，做好高校教学档案的开发利用。     

Excel在学生成绩统计分析中的综合应用

Excel在高校成绩统计分析中的应用非常普遍,但如何用好用活Excel值得交流.文章从个人的经验介绍了Excel在成绩统计分析中的灵活使用.     

高速公路预防性养护之我见

高速公路养护管理中,预防性养护工作的好坏直接影响高速公路的使用,因此,预防性养护越来越被重视。结合运城高速公路侯运段的路面预防性养护的实例,阐述了高速公路预防性养护的具体做法。     

也谈高校信息检索课与大学生信息素质的培养

介绍了信息素质的定义及其内涵,分析了目前我国信息素质教育存在的问题,提出了加强大学生信息素质教育的对策。