光学转像变倍微分方程的建立及其应用

建立了光学转像变倍微分方程，并应用于军械瞄准具无焦系统连续变倍过程的分析，给出两个数字例子的高斯光学设计结果     

论地质科研的定位,准位与就位

从地质工作具有双重性（自然科学属性和经济属性）入手,提出地质科研同样具有双重属性;剖析了我国地质科研往往只注重其自然科学属性而偏废其经济属性所造成的地质科研严重不适应我国经济改革的现状;根据江泽民同志的十五大报告中的经济建设思想,结合地质科研的现实,阐述了在现行市场经济条件下地质科研的定位、准位与就位及相关经济建设思想。     

The 10th International Symposium on Permafrost Engineering——Challenge and adaption of permafrost engineering to a changing climate

Permafrost engineering has been developing rapidly in recent years. Many projects have been undertaken with the latest technologies and show their importance in supporting regional social and economical development. For example, the Qinghai-Tibet Railway has been a milestone project in permafrost engineering. However, when designing and building infrastructures in cold regions,     

Information for Contributors

正Journal of Meteorological Research is an international academic journal in atmospheric sciences edited and published by Acta Meteorologica Sinica Press,sponsored by the Chinese Meteorological Society.It has been acting as a bridge of academic exchange between Chinese and foreign meteorologists and aiming at introduction of the current advancements in atmospheric sciences in China.The journal     

Information for Contributors

正Journal of Meteorological Research is an international academic journal in atmospheric sciences edited and published by Acta Meteorologica Sinica Press,sponsored by the Chinese Meteorological Society.It has been acting as a bridge of academic exchange between Chinese and foreign meteorologists and aiming at introduction of the current advancements in atmospheric sciences in China.The journal columns include Articles.Note and Correspondence,and research letters.Contributions from all over the world are welcome.     

Themed issue on ＂Land Use Policy in China＂ published in Land Use Policy

Land Use Policy is an international and interdisciplinary journal,published by Elsevier,concerned with the social,economic,political,legal,physical and planning aspects of urban and rural land use.Recently,a themed issue on＂Land Use Policy in China＂has been published in Volume 40 of this journal （http：//www.sciencedirect.com/science/journal/02648377/40）. Under the guidance of the journal editor Professor Guy Robinson from University of South Australia, Professor Hualou Long acted as the guest editor in compiling this themed issue.     

TCA2003照准棱镜精度分析

为测试普通圆棱镜配合TCA2003自动全站仪的测量性能,以实际项目为背景,运用实验与对比的方法,分析了TCA2003自动全站仪照准棱镜的观测精度,绘制了各实验点位坐标较差图,结果表明,圆棱镜配合TCA2003自动全站仪的测量误差在亚毫米级内,可以适用于变形监测,且能满足一般工程应用要求。     

关于"生态旅游"概念的探讨

该文选取国外44个生态旅游定义作为研究对象,通过确认关键词、对关键词进行聚类分析,将定义内容归纳为6大类11组分,进而构建生态旅游概念模型.在检验模型理论上的可靠性和实践上的适应性后,笔者依据模型提出生态旅游定义.     

地图扫描数字化的点位精度分析

地图扫描数字化为建立ＧＩＳ提供了一种较好的原始地图数据获取方法，本文讨论了影响地图扫描数字化精度的诸种因素，分析了定向点和采样点误差对地图数字化结果的影响，发展了定向点和采样点的自动对中算法，从而保证地图扫描数字化的精度能满足建立ＧＩＳ的要求。