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1.
导览系统是景区服务的信息载体,其设计会影响到景区信息的传输效率。本文以提高导览系统的可用性和改善用户体验为目的,对移动三维导览系统进行了规范化设计,包含整体技术路线设计、系统功能模块设计、用户界面与交互设计等;面向移动平台,重点论述了三维导览系统快速渲染和智能服务等关键技术的实现与集成;最后以北海公园为例,展示了系统设计与运行效果。  相似文献   

2.
用基于ARM的AT91M40400及μC/OSⅡ系统设计了数据采集系统,给出了系统原理框图及设计要点。  相似文献   

3.
通过对网格系统秩序体系的研究,确定了地图集版式设计中网格系统的引入流程,提出了网格系统在地图集版式设计中的应用流程。鉴于网格系统在小比例尺地图集版式设计应用中更具典型性,故以《21世纪海上丝绸之路沿线区域航海地图集》小比例尺地图集为研究对象,借助网格分割、网格重组、网格突破等设计手法,详细介绍了网格系统在小比例尺地图集版式中的具体应用过程。总结出网格系统在地图集版式设计中的使用原则,对其应用的强大优势进行了探讨,为现代地图集版式秩序化设计提供了方法,有效地节省了地图集编制的人力和物力。  相似文献   

4.
基于Internet的学分制选课系统设计   总被引:7,自引:0,他引:7  
介绍了Internet网上选课系统的基本设计思想,从选课系统的功能、结构、实现等方面介绍了系统的技术特点和设计方法.  相似文献   

5.
系统地阐述了设计一个嵌入系统——机顶盒的软硬件构成,通过介绍机顶盒的软硬件构成,详细地说明了嵌入式系统软硬件的基本组成和设计思路,最后指出了Linux在嵌入式系统中的运用前景。  相似文献   

6.
针对信息化条件下地理信息动态更新对变化发现技术的迫切需求,研究设计了基于网络的多级有序互动式地形要素变化信息标报系统:首先讨论了系统的总体设计思路以及三层体系结构,概述了系统中的发布订阅、地理信息博客和多级访问控制三个模块的设计,在上述设计基础上,给出了系统功能设计;通过模拟数据介绍了系统的主要实现结果。  相似文献   

7.
基于地理设计的三维道路设计系统研究与实现   总被引:2,自引:0,他引:2  
道路规划设计是一项复杂的系统工程,现阶段道路设计采用传统的平台难以适应空间分析、三维展现、交互设计等新的需求,更不能充分利用GIS分析、参数化设计等新技术为设计服务。地理设计的诞生为将设计与分析的融合提供了指导思想,参数化设计则为基于规则的道路设计提供技术基础。本文以地理设计为指导、以参数化驱动设计为手段,构建一个基于三维地理环境的道路设计系统,阐述地理设计、参数化驱动设计在系统中的作用及系统的结构组成,最后展现系统建设成果。  相似文献   

8.
介绍了如何采用Struts框架技术结合UML设计和实现一个在线考试系统。给出了系统的需求分析,用例模型及软件结构图,主要功能模块的MVC框架设计,介绍了一些关键问题的解决方案和实现代码。  相似文献   

9.
本文讨论了国家1:50000数据库集成管理的设计目标和原则,进行系统的结构设计、数据库的数据组织设计、系统功能模块设计以及系统的存储环境设计,并在项目的建设中得到了实现。  相似文献   

10.
本文讨论了国家1∶50000数据库集成管理的设计目标和原则,进行系统的结构设计、数据库的数据组织设计、系统功能模块设计以及系统的存储环境设计,并在项目的建设中得到了实现。  相似文献   

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Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area.  相似文献   

13.
Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter.  相似文献   

14.
正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprchensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose is to publish achievements in fundamental research,applied  相似文献   

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《山地科学学报》2014,(4):I0004-I0009
<正>AIMS AND SCOPE(Editorial Policy)The Journal of Mountain Science(JMS)is devoted to mountains and their surrounding lowlands-ecoregions of particular global importance,with a particular emphasis on the important highlands/mountains in the world,such as the Tibetan Plateau,the Himalayas,the Alps,the Andes,the Rockies and many other mountain ranges of our planet.  相似文献   

17.
<正>The Journal of Mountain Science(JMS),founded in2004,is an international English-language journal on mountain sciences.JMS is supervised by the Chinese Academy of Sciences(CAS),sponsored by the Chengdu Institute of Mountain Hazards and Environment,CAS,published by Science Press China,and distributed by Springer exclusively throughout the world(excluding Mainland China).The JMS is published bimonthly,fulltexted in SpringerLink and CNKI,indexed/abstracted by  相似文献   

18.
Using the NCEP/NCAR reanalysis monthly 500 hPa height data on a 2.5 latitude-longitude grid and 1°×1° sea ice data,the polar vortex area,intensity index and arctic sea ice area index are calculated respectively,and the meridional distribution,period variation and the abrupts in the long range trend are analyzed to study their relationship.The results show that the meridional distribution of sea ice and polar vortex h-ave distinctive difference,the relative positions of them are different in the eastern and western hemispheres,and exept they have periods of 4 months,quasi half year,quasi year,4-5 years and 10 years commonly,and each of them has its own respective variation as well.The sea ice area is decreasing apparently since 1980's,so is the polar vortex area,but their abrupt changge time are different totally.The area of sea ice and polar vortex has prominent positive correlation,but the relationship of sea ice intensity,polar vortex intensity,polar vortex area is complicated.  相似文献   

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<正>The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research  相似文献   

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