浅析WEB页面线框图布局设计

文章以＂聚德金化工网站＂改版设计项目为实例,依照网页设计工作流程中的基本环节,论述Web页面线框图布局设计的核心要点及具体分析方法,并从技术角度入手,重点论述线框图布局范围内的屏幕复杂度的分析与设定、规划设计版块及导航值计算等内容。     

硕士课程《自主导航》研究型教学探索与实践

基于硕士课程《自主导航》新课程标准的特点,结合三小时教学制,在课程教学中提出并实践了一种研究型教学方法。从教学理念的转变、教学与科研的结合、研讨式教学和实践性教学的探索等方面进行了分析与探讨,并结合在教学实践中的思考和体会,提出了教学改革措施,以达到改善教学效果的目的。     

车载卫星天线快速找星控制系统的研究与设计

为了在运动的载体上能接收卫星信号,综合应用GPS接收机、电子罗盘HMR3000、信标接收机等多种新技术,设计一种由STC12C5A60S2单片机组成的快速卫星天线找星与跟踪控制系统,并阐述了各部分的工作原理、设计方法与软件算法的实现过程。经检测证明该系统能快速、准确的寻找到卫星。     

The Peer Reviews Process:

No abstract available for this article.     

The American Filter

This study explored the television viewing habits of a cohort of Asian Indians who migrated to the US more than 40 years ago. This cohort eventually became acculturated into watching Indian television via the satellite dish. The study used the integrative communication theory and examined how two concepts of the theory relate to adaptation: enculturation and acculturation. The study produced findings that described how these Asian Indians used American television to acculturate to the US, but used American television as a filter through which they judged Indian television and distinguished between what they believed to be good and bad programming.     

Distance Education in the Rural K-12 Environment

Abstract

A small rural school in Idaho tried various forms of distance education to broaden the range of subjects offered to students. It gave up on satellite-based coursework because of high cost and synchronization problems. Correspondence courses solved the synchronization problem, but still required expensive adult supervision to keep students on task. IP-based videoconferencing appeared to promise lower costs and better synchronization, but in practice it proved to be difficult to implement and exhausting for course teachers. The school began to view videoconferencing in terms of its enrichment and collaboration values. The Internet, together with other distance education technologies, may one day erase the educational disadvantages of rural isolation. They also promise to make lifelong learning the expected norm.     

空间通信系统模拟与QoS性能的研究

空间通信链路由于其固有的特点（长传播延迟、可变延迟和高误码率）,对空间通信的服务质量QoS(Quality of Services)提出了新的要求和挑战。提出了空间通信系统模拟的体系结构,实现了基于卫星工具包STK(Satellite Toolkit)的空间通信系统的模拟,并开发了空间通信系统的QoS性能测量软件,同时对QoS性能进行了分析。     

一种带航位推算的GPS接收板

Jupiter 12 GPS OEM接收板连接合适的陀螺仪和里程表等传感器,实现DR/GPS组合导航,可达到更高的定位精度.     

新一代静止气象卫星成像仪特性研究

世界各国新一代静止轨道气象卫星陆续发射升空,成像仪是主要载荷之一。通过对美国、日本、欧洲和中国等新一代静止气象卫星成像仪特性的研究分析,客观认识我国静止气象卫星水平的差距和不足,为我国风云四号02星成像仪特性优化提供参考。在波段设置方面,欧美日均为16个通道,我国的FY-4A为14个光谱通道;在时空分辨率方面,各国水平相当,略有差异,可见光波段分辨率为0.5~1km,红外波段2~4km,全圆盘观测10~15min;在观测模式方面,FY-4A的多通道扫描成像辐射计和MTG的灵活组合成像仪先进行一次全圆盘观测,再进行多次区域观测,不同扫描资料时间间隔不均等。GOES-R的先进基线成像仪和Himawari-8的先进葵花成像仪观测时间采用碎片化设计,即各种扫描模式交叉进行,不同扫描资料时间间隔均等,非常有利于预报员对天气进行系统分析。     

基于用户认知语境的个性化导航研究

网络信息资源的内容、形式以及组织的纷繁复杂，需要用户自身的知识环境与习惯偏好在信息导航系统中发挥强大的主导作用。本文试图从人类认知科学的角度出发，以用户个体的认知语境作为研究重点，分析了用户认知语境的导航个性化支持功能，并在用户认知语境建模的基础上提出了基于用户认知语境的个性化导航模型。