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综合通信系统实验平台建设 总被引:3,自引:0,他引:3
介绍了"信息与通信工程"学科各专业综合通信系统实验平台的设计与建设情况.创新性地在综合通信系统上建设本科和研究生专业教学实验平台.其多系统综合设计,从原理、器件、设备到系统的多层次实验环境,已在部分高校中产生了积极的影响,具有推广价值. 相似文献
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学科教学论教师专业发展博客平台的研究与实践 总被引:1,自引:0,他引:1
郑小军 《广西师范学院学报(自然科学版)》2008,25(2)
阐述了教育信息化环境下学科教学论教师建立支持教师专业发展的博客平台的必要性和可行性,并结合案例讨论了如何设计与应用教师专业发展博客平台. 相似文献
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从基于Web的竹工艺品设计交流平台的总体思路出发,介绍了平台的各功能模块及技术环境。该平台为竹工艺品设计人员——竹艺模型设计师与客户提供了以竹为设计原材料,集竹工艺品设计与展示、交流与评价、咨询与洽谈、设计预订、转让交易为一体的专用设计交流网络环境;也有利于工业设计专业学生在设计方面的实践、学习与交流。 相似文献
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交互式虚拟产品展示设计平台的研究 总被引:1,自引:0,他引:1
基于Virtools开发了一个专业的交互式虚拟展示设计平台。通过对该平台的功能和结构进行分析,探讨了其属性数据的定义、行为交互的控制、组件层次关系的定义与设计和系统优化等关键技术,并以Virtools为开发工具实现了具有部分功能模型的平台。利用一个冰箱的模型及其属性信息,在该平台的基础上构建了其交互式虚拟展示系统,证明该设计平台是可行的。 相似文献
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根据学校的教学基础和测控技术与仪器专业的学科特点,提出了“两个平台,两个方向”的人才培养模式,即搭建机械基础和电子基础两个平台,设置仪器设计与测量和光电检测与控制两个方向,培养专业基础扎实、实践能力强、适应面宽的应用型人才。并在此基础上对专业定位、人才培养目标、培养模式、课程体系及教学改革进行了研究和探讨。 相似文献
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光电信息技术实验与实践教学体系的建设 总被引:1,自引:1,他引:0
为了适应应用物理学专业发展需求,突出专业特色,针对光电信息技术专业实验课程与实践教学环节提出了一些建设思路与方案。首先,针对教学内容体系与实验室建设提出了一些新的理念,为光电信息技术专业实验及实践教学体系的改革提供了指导方向;其次,建立了以专业基础、应用提高、综合设计、研究创新为主线的专业实验模块,以及光电产品的设计、制作以及市场信息调研为主线的专业实践模块,构成了光电信息技术实验与实践教学环节多元化内容体系,并对每一环节的建设方案进行了探讨;最后,介绍了光电信息技术专业实验室、大学生实践创新基地和网络交互信息平台的建设思路,为实验教学和大学生自主创新与实践提供充足的平台,实现资源的共享。 相似文献
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为了解决人工智能专业应用型人才实践与实操能力不足的问题,提出了校政行企融一体的建设模式。首先,进行了人工智能专业整体建设规划设计,提供了从课程服务到软硬件环境一体化全方位的设计方案。然后,进行了人工智能专业人才培养方案的研究,包括专业定位及要求、教学模式设计、课程体系设计等。最后,提出了人工智能理论教学平台架构和模块的设计,以及基于Kubernetes + Docker容器集群技术的人工智能教学实验平台设计。校政行企融一体的建设模式让学生接受开放的、面向企业真正需求的线上线下相结合的专业课程学习,最终达到培养学生的专业拓展能力和复杂工程项目实践能力的目的。 相似文献
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文章主要探索"质量专业基础知识与实务"资源库对实践教学的重要性,重点对资源库的需求分析、模块设计及开发平台进行阐述,介绍了资源库管理系统的设计与实现。 相似文献
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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. 相似文献
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Zhang Ruiqin 《华南师范大学学报(自然科学版)》2014,46(6):144-144
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 相似文献
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Pingzhi Fan 《科学通报(英文版)》2014,59(35):4974-4975
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. 相似文献
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WEI Zu-kuan 《重庆邮电大学学报(自然科学版)》2004,16(5)
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. 相似文献
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罗碧波 《东莞理工学院学报》1999,(2)
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。 相似文献
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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. 相似文献
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Angèle Nzoué 《自然科学进展(英文版)》2008,18(1):43-49
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. 相似文献
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Wan Jian 《华南师范大学学报(自然科学版)》2014,(6)
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 相似文献
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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。 相似文献