基于遥感技术的塔里木河流域业务应用及展望

通过遥感技术在塔里木河(以下简称塔河)流域水调水管业务中的具体应用,详细介绍系统构架和基于遥感技术在输水水头跟踪、河道跑漫水监测、湖面面积变化监测等实际工作中的应用情况,技术方法及发挥的效益,初步展示利用遥感技术开展塔河流域生态调度输水遥感监测的重要性和必要性,并对开展此项工作的长效机制提出展望。     

遥感技术在河北省土地调查中的应用与展望

河北省从2001年首次在土地资源调查监测中引入卫星遥感技术，开展了石家庄市土地利用卫星遥感动态监测试点研究。在试点经验的基础上，2005年部署开展了河北省土地利用遥感动态监测，对重点城市和县城开展了土地利用变化监测，构建全省土地利用遥感本底数据库。从2005年开始我省用三年时间，在全省组织实施了土地利用更新调查工作，其中遥感技术得到了更加广泛和深入的应用。本文着重分析遥感在土地调查中的作用、技术方法和流程，以及存在的主要问题，并结合未来遥感技术的发展和国家土地遥感工作的部署，对我省今后遥感技术在土地调查中应用前景作出展望。     

遥感技术在河北省土地资源管理中的应用与展望

自2001年我省首次应用遥感技术对石家庄市土地利用变化状况进行遥感动态监测以来，河北省国土资源厅连续几年在此方面作了大量的工作，并取得了显著的成效。目前，应用遥感技术对土地利用情况进行动态监测，已经成为我省土地资源管理中实行业务化和常规化运行的重要手段。本文就遥感技术在土地资源管理中的应用、土地利用动态遥感监测的技术路线和方法、遥感技术在土地资源管理中的应用前景以及今后需要研究和解决的主要问题做一简要介绍。     

遥感技术在减灾救灾中的应用

遥感技术已经广泛应用于地震、洪涝、台风等自然灾害的减灾救灾工作中,并在灾前预警准备、灾中监测救援和灾后评估恢复阶段发挥了重要的作用。首先介绍了灾害信息获取中常用的可见光、热红外和雷达数据及其特点,然后分析了遥感技术在减灾救灾中的应用优势,并对其在灾害不同阶段的作用进行了讨论。最后结合遥感的特点和数据处理方法,介绍了遥感在不同种类灾害中的应用情况,并对我国遥感技术在减灾救灾应用中的发展方向进行了展望。     

森林病虫害遥感监测技术研究的现状与问题

快速准确地监测、预测、评估及防治森林病虫害对国家减灾工程具有重要意义,而遥感技术是森林病虫害监测的重要手段。本文论述了利用遥感技术进行森林病虫害监测研究的内容、技术与方法,并探讨了目前遥感监测病虫害存在的问题及其发展趋势。     

遥感技术在环境污染监测中的应用

环境污染遥感监测技术具有监测范围广、速度快、成本低,且便于进行长期的动态监测等优 点,是实现宏观、快速、连续、动态地监测环境污染的有效高新技术手段。介绍了应用于环境污染监 测的可见光、反射红外遥感技术、热红外遥感技术、高光谱技术以及微波遥感监测技术,并着重阐述 了遥感监测技术在水环境污染、大气环境污染中的应用。最后,指出了我国环境污染遥感监测技术 存在的问题和发展趋势,建议尽快发展我国的环境污染遥感监测技术,以满足我国环境污染监测的 需要。     

河北省遥感技术应用科普知识图片近期参展

由河北省遥感应用协会提供的河北省遥感技术应用科普知识图片,近期在河北省科学技术馆“走近遥感”专栏中公开向社会展出。展览图片列举了由我国遥感卫星监测到的自然灾害,如台风入侵、沙尘暴的肆虐、坝上水体的干涸、土地沙化等等给人们带来的灾难。通过此次图片展览使人们对遥感技术的应用有了一个初步的认识和了解,加深了遥感技术在国民经济建设中的重要地位和作用。     

我国遥感技术发展的现状与展望

一、概述自从美国第一颗地球资源卫星于1972年发射上天以来,世界各国的遥感技术已经得到突飞猛进的发展。这一阶段遥感技术发展的主要标志是: 1.多层次遥感平台已经建立目前遥感平台包括地球静止轨道卫星、极地轨道卫星、高空和低空遥感飞机等。这些不同的平台具有不同的飞行高度、覆盖周期、观测范围、空间分辨力,因而构成了一个多层次对地立体观测系统。以遥感卫星为例,它包括了陆地卫星系列,如美国的LANDSAT、法国     

RS在矿山动态监测中的应用——以新疆稀有金属矿集区为例

研究了利用遥感技术开展矿山动态监测的方法与技术路线,即通过遥感图像的信息提取、解译,结合实地调查,对矿山开发状况和矿山生态环境进行客观的反映。通过对比分析不同时相遥感数据的解译结果,指出工作区存在部分违规采矿行为,很好地实现了对本区采矿行为及影像的动态监测。     

国内外赤潮卫星遥感技术与应用进展

卫星遥感已成为赤潮探测与监测的重要技术手段之一。回顾了国内外赤潮卫星遥感技术与应用的进展,对国内外已开发的赤潮卫星遥感技术与方法进行了简要的评述,并给出了国内利用NOAA和SeaStar卫星探测与监测赤潮的3个实例。讨论了我国赤潮卫星遥感存在的问题,提出了发展我国赤潮卫星遥感技术与应用的建议。     

凹凸科技进军网络安全领域

2006年2月28日,网络安全及电源管理芯片供应商凹凸科技(O2Micro)向中国用户隆重推介凹凸科技在网络安全领域的独特理念和全新方案.此举标志着凹凸科技已正式进军网络安全领域.特别在ASIC防火墙和SSL VPN技术和产品的竞争中,凹凸科技已经担负了不可或缺的重要角色.而其在模拟与数字集成电路方面拥有的强大设计和制造能力,无疑将为其最终成为全球网络安全领域的主要供应商增加关键筹码.凹凸科技在评述中国安全市场发展趋势的同时,还将携两款最具代表性的成熟产品--ASIC防火墙SifoWorks和SSL VPN产品Succendo一起亮相.     

2006 Sun科技日在中国举行——"Java之父"James Gosling再来中国

继成功举办2005年Sun JAVA中国开发者大会之后,Sun一年一度全球规模的开发者大会——2006Sun科技日又分别于今年9月23～24日和27～28日相继在中国上海和北京两大都市举行“。Java之父”James Gosling再次来到中国,与中国的开发者讨论软件开发者所关心的问题,讲述Sun的软件发展策略、介绍Solaris10操作系统的独特的特性和新的Java开发工具、展望Java技术发展前景,特别是阐明Sun实施Java技术开源的策略。Sun科技日是Sun公司最重要的全球开发者的大会,它针对Java技术、Solaris10OS、NetBeans、OpenSolaris、开源技术、开发工具和Web…     

陕西省第一届国防科工系统内网安全研讨会召开

2006年3月15日,“陕西省第一届国防科工系统内网信息安全建设专题研讨会”在西安市隆重召开。此次会议的议题是,在当前的信息安全形势下,陕西省国防科工系统内网面临的信息安全问题,以及如何采取有效的解决方案进一步提高国家机要部门内部网络的安全保护等级,以适应形势发展的需要。此次会议由陕西省国防科工委主办,陕西省国防科工委信息中心和北京榕基网安科技有限公司、北京理工先河科技发展有限公司、陕西金叶西工大共同承办,国家保密局和陕西省国防科工委的有关领导出席会议并发表了重要讲话。在为期两天的会议中,共有100多名国防科工系…     

IT in teacher training in France

Abstract To understand what is going on in France at the moment in the domain of computers and related communication technologies in teacher training, there are two major developments that have to be kept in mind. Firstly, the ways of becoming a teacher in France underwent major changes in 1991. It is therefore too early to come to general conclusions about the effects of this reform in the field of new information technologies. Secondly, French IT in schools policy has shifted from a large-scale centralized equipment operation, which provided microcomputers in each school from 1985 to 1987, to a more regional management of equipment funding, with less national piloting in the field. This paper describes what happened during the previous period and what is taking place now. With matters still evolving the paper represents a snapshot rather than an exhaustive survey; such a survey remains to be done.     

Teacher education in IT in Germany

Abstract In 1988 the eleven West-German Kultusminister , with responsibility for the school systems in their respective Bundeslaender , reached agreement with the Federal Ministry of Education and Science on the broad concept of 'Information and Communications Technology', ITG. After four years of discussion it was agreed that ITG should be introduced into the secondary level of the general schools. In spite of strong disagreements about the ways and speed of implementation, and after several years of experiments, important parts of the concept have become a reality in practically all of the old Bundeslaender. While acknowledging the complexity of the German educational system the paper attempts to outline the development of the concept of Information and Communications Technology and its consequences in teacher education. The development in the eastern part of Germany, the former GDR, has been completely different to that in the western part and this is also commented upon in the paper.     

IT in teacher education in Scotland

Abstract This paper outlines the consensual approach to the formulation of curriculum policy in general, and in relation to information technology (IT) in particular, in Scotland. It outlines the approaches to IT that have emerged as a result. These are founded on the premises that all children should develop knowledge and understanding about IT and skills in using IT; that IT should influence both content and delivery of the curriculum; and that IT (computing studies in Scotland) should be an elective for secondary school pupils. Against this background, the paper describes the evolution of policy and practice relating to IT in teacher education. It appraises the strategies which institutes are using for developing the professional skills necessary to deliver IT in the Scottish curriculum. It notes significant progress but highlights the need to develop strategies which integrate IT more deeply with other professional studies so that student teachers develop deeper, more reflective approaches to IT.     

Informatics in teacher education in Japan

Abstract This paper charts the developments in information technology (IT) policies in education in Japan over the past decade with particular emphasis on the impacts on teacher education. Beginning with the work of the National Council on Educational Reform in 1985, the Japanese education system initiated a thorough analysis of the role of information technology in all aspects of education from kindergarten through to high school, vocational education and pre- and in-service teacher education. The various approaches culminated in guidelines and statutory requirements relating to both schools' curricula and teacher training, published in the period 1990–1992. More recently other ministries have contributed to developments including the Ministry for International Trade and Industry which has categorized the different types of information engineers and among these is the new Educational Engineer. The paper reports the processes leading to these developments.     

IT in teacher education in Denmark

Abstract As with many European countries Denmark is experiencing change in teacher education and most notably in the wake of an act of government in 1992 which was designed to set out common aims for teacher education. Prior to that the content and structure of teacher education had been highly specified including, for example, the requirement that student teachers should take a course of 42 hours IT-related lessons. This paper provides a brief history of the background to the changes in teacher education and focuses on the implications that the more flexible aims for teacher education have for the future integration of IT in teacher education.     

在网络层实现安全传输通道技术的研究

安全传输通道是对传输的原始信息进行加密和协议封装处理,从而实现安全传输的技术,本文在TCP/IP的网络层上提出了实现安全传输通道的技术和解决方案。并对网络层的安全传输通道技术提出了实现机制。     

Recent developments in ergonomics in China

Ergonomic thought and practice were introduced in ancient China in relation to modern developments in Chinese ergonomics. Despite the ten-year interruption of the 'cultural revolution’ in the late 1960s and 1970s, ergonomics has made great progress in China in the last decade. In this paper some general developments in recent ergonomics’ teaching and in professional organizations are described. Four major areas of ergonomics research are illustrated: (1) Visual displays and signal design; (2) Human-computer interface with Chinese computers; (3) Cognitive strategies and decision support; (4) Mental workload and occupational stress. The main characteristics of Chinese ergonomics are discussed and new directions are highlighted, based on recent developments and progress.