GUIDE TO AUTHORS

正Journal of Mountain Science(JMS)is an international English journal.JMS was founded in 2004,is sponsored by Institute of Mountain Hazards and Environment.Chinese Academy of Sciences,published by Science Press China,and distributed bySpringer exclusively throughout the world(excluding Mainland China).JMS is indexed/abstracted in     

Journal of Mountain Science(JMS)

<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     

GUIDE TO AUTHORS

Aim&Scope: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.JMS mainly publishes academic and technical papers concerning environmental changes and sustainable development in mountain areas under natural conditions or/and with the influence of human activities.     

GUIDE TO AUTHORS

Aim&Scope: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.JMS mainly publishes academic and technical papers concerning environmental changes and sustainable development in mountain areas under natural conditions or/and with the influence of human activities.     

Journal of Mountain Science(JMS)

<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).     

GUIDE TO AUTHORS

Aim&Scope: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.JMS mainly publishes academic and technical papers concerming,environmental changes and sustainable development in mountain areas under natural conditions or 1 and with the influence of human activities.It also accepts book reviews,commentary,and reports on mountain research and introductions to mountain research organizations.     

GUIDE TO AUTHORS

Aim&Scope: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.JMS mainly publishes academic and technical papers concerning environmental changes and sustainable development in mountain areas under natural conditions or/and with the influence of human activities.It also accepts book reviews,commentary,and reports on mountain research and introductions to mountain research organizations.     

GUIDE TO AUTHORS

Aim&Scope: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.JMS mainly publishes academic and technical papers concerning environmental changes and sustainable development in mountain areas under natural conditions or/and with the influence of human activities.It also accepts book reviews,commentary,and reports on mountain research and introductions to mountain research organizations.     

一种改进的客户端平衡的密钥交换算法研究

目前安全套接层协议在性能上存在不足,大量的加密解密操作消耗了太多的系统资源,对服务器的性能影响非常大。为此提出利用客户机协助安全套接层服务器进行RSA私钥解密的握手,以充分利用客户机等待服务器消息的空闲时间,提高服务器处理该连接的速度。为进一步提高安全套接层服务器的计算速度,采用中国余数定理对指数进行降幂。利用开源软件包实现改进的基于中国余数定理客户端平衡的握手实验,实验表明,在密钥长度为1024位的情况下,改进后算法的解密速度提高了8倍,在一定程度上改善了系统资源利用率。     

Guide to authors

<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.JMS mainly publishes academic and technical papers concerning environmental changes and sustainable development in mountain areas under natural conditions or/and with the influence of human activities.     

基于乘客心理需求的换乘短信查询平台的研制

在出行中乘客通常要多次换乘公交车才能到达目的地。因为手机短信是出行中最方便实惠的通讯方式,通过问卷调查部分乘客对换乘方案的心理需求,应用GSM MODEM技术构建了短信平台,在换乘次数最少优先算法上做了“同心圆”算法的改进。     

GSM无线通信技术在预警GIS领域中的应用模式

GSM(Global System for Mobile Communication)是目前通信体制中最完善、最成熟,应用最广的一种数字移动通信网。基于GSM的短消息无线通讯技术以其传输信息及时、作用距离远、误码率低、成本低等优点,被广泛应用在水利、电力、环保、交通、防恐、天然气及自然灾害等领域。本文在个案建立的基础上,探讨了基于GSM的短消息技术在预警GIS领域中的应用模式,并对应用中所使用的若干通用的关键技术和规范进行了分析,提炼出了这种应用模式的共性问题,最后对这种应用模式的发展方向作了客观预测和展望。     

N-策略精益生产排队模型分析与设计

研究了精益生产环境下，生产线可能发生故障的单服务台N-策略M／M／I随机服务服务系统，利用概率母函数给出了模型的各项稳态指标；设计了预期费用函数，利用函数求解出当预期费用最少时的最优N-策略；并对模型进行了数值模拟。     

基于J2ME平台研究Web Service的移动商务应用

结合J2ME和Web Service技术研究开发一个医疗设备代理公司的移动商务平台项目.利用J2ME开发手机客户程序,调用公司应用服务器发布的Web Service,手机客户程序可以通过解析Web Service返回的XML数据动态生成用户界面,从而实现手机客户的软件功能定制,并利用Push技术实现服务器端提醒移动终端用户界面的动态更新以及商品订单流程的异步处理.     

基于满意优化原理的网络QoS路由研究

Qos（Quality of Service）路由选择问题是网络多媒体信息传输的关键技术.随着新兴的分布式多媒体应用大量出现和网络多媒体应用技术的高速发展,高效的QoS支持将变得越来越重要,更是彰显了QoS路由选择问题的重要性.提出了一种基于满意优化原理和遗传算法的QoS路由求解算法来解决QoS路由问题,该算法能极大地缩短路由求解时间,提高路由求解的成功率,并能在最大程度上避免出现拥塞,满足了网络流量工程的需要.     

基于多处理器技术和Petri网的定位器设计与实现

根据油田员工安全信息系统建设对员工定位器的功能需要,设计了GSM模块和GPS模块,作为信息中心与定位器间信息交互的硬件部件。在系统控制核心上采用双处理器管理模式,实现系统的硬实时功能;在双处理器系统设计中,利用双口存储器构建紧密耦合多处理器体系结构,提高双MCU之间通信能力;设计系统LCD显示器部件;设计两个MCU之间异步通信的PETRI网模型并据此实现通信关键算法,确保了通信的正确性。     

Linux环境并发服务器设计技术研究

讲述许发服务器设计的主要技术，包括多进程服务器、多线程服务器和I／O复用服务器，同时对以上服务器技术的性能进行了简要分析，给出了在Linux操作系统下使用socket实现并发服务器的方法。     

协同GIS软件体系结构研究

分布式的异构地学信息处理与分析,需有支持协同工作的GIS平台。但是现有的GIS基础平台大都只具有部分协同功能,真正意义上的协同GIS基础平台尚未出现。本文结合计算机支持协同工作的相关理论,提出协同GIS的体系结构,分析了协同逻辑在协同GIS体系结构中各部分的特征和作用,并论述了所涉及的研究内容。     

Linux下一种多核网络服务器模型设计与实现

传统的基于Linux操作系统的网络服务器程序在高负载情况下不能充分利用多核服务器硬件资源,其原因主要在于没有找到一种高效的服务器编程解决方案.为了解决这一问题,在分析了线程池技术和linux 2.6内核下的I/O多路复用技术各自的优缺点的基础上,设计并实现了一种在多核服务器平台上结合线程池和I/O多路复用的高性能网络服务器编程模型.通过实验表明,新的编程模型相对于线程池模型和单纯的I/O多路复用模型,其任务平均响应时间只占其它两种模型的8%和29%,而其平均吞吐量则达到了其它两种模型的8.4倍和1.9倍.     

基于J2EE架构的企业卡资源管理系统的设计与实现

介绍了J2EE架构和多层体系结构的发展，在B／S三层架构的基础上给出了包含应用服务器中间件的多层分布式应用体系结构，并把此体系结构应用于电信氽业的有价卡管理系统项目中。分析了此项同的功能结构和体系结构，采用J2EE开发平台和技术设计实现了由浏览器、Web服务器、应用服务器、数据库服务器组成的多层体系架构。