流域内森林植被对径流的影响

分析了大兴安岭地区呼玛河上游森林植被覆盖率变化对流域径流的影响。     

Application of data fusion on multi-function earth drill

0　ＩＮＴＲＯＤＵＣＴＩＯＮＷｉｔｈｔｈｅｃｏｎｓｔａｎｔｅｘｐａｎｓｉｏｎｏｆｆｏｕｎｄａｔｉｏｎｃｏｎ ｓｔｒｕｃｔｉｏｎｓｃａｌｅｉｎｏｕｒｃｏｕｎｔｒｙ ,ｔｈｅｅａｒｔｈｄｒｉｌｌｉｓｗｉｄｅｌｙｕｓｅｄ .Ｉｎｏｒｄｅｒｔｏｅｎｓｕｒｅｉｔｓｗｏｒｋｉｎｇｑｕａｌｉｔｙａｎｄｉｍ ｐｒｏｖｅｉｔｓｗｏｒｋｉｎｇｅｆｆｉｃｉｅｎｃｙ ,ｉｔｉｓｎｅｃｅｓｓａｒｙｔｏｄｏｆｕｒ ｔｈｅｒａｎａｌｙｓｉｓａｎｄｓｔｕｄｙｏｎｔｈｅｔｒｏｕｂｌｅｍｅｔｉｎｉｔｓｄｅｓｉｇｎａｎｄｕｔｉｌｉｚａｔｉｏｎ…     

Behavior of pre-stress group anchors——Theory approach and model

First of all the pre-stress group anchor ropes are resolved into twosub-systems: the stable rock stand lateral resistance load and inner bonding sectionstand lateral resistance load and pre-stress load. Then, discretization of everysub-system was carried on and it is assumed that different micro-sections possessuniform distribution side resistance. On the basis of Mindlin stress solution, stress overlay principle, modified layered-summation method as well as the load transfer method, westudy the anchor group effect and present a theory model which calculates the anchorgroup effect and establishes the relevant iterate standard.     

偏离度在找水可行性论证中的应用——以包头地区为例

激发极化找水作为一种手段,解译上经验性的成分居多,致使许多专业人员对于能否利用该法找水举棋不定.偏离度参数的提出,大大地提高了对含水性判断的准确性,加之屏障装置测深推断更加接近真深度,使得在包头地区找水的可行性论证有了依据.     

Simulation of hyperspectral and directional radiance images using coupled biophysical and atmospheric radiative transfer models

Future remote sensing satellite missions exploring the earth will feature advanced hyperspectral and directional optical imaging instruments. Given the complex nature of the data to be expected from these missions, a thorough preparation for them is essential and this can be accomplished by realistic simulation of the imagery data, years before the actual launch. Based on given spectral and directional capabilities of the instrument, and in combination with biophysical land surface properties obtained from existing imagery, the spectral and directional responses of several types of vegetation and bare soil have been simulated pixel by pixel using the radiative transfer models PROSPECT (for hyperspectral leaf reflectance and transmittance), GeoSAIL (for two-layer canopy bidirectional spectral reflectance), and MODTRAN4 (for atmospheric hyperspectral and directional effects). In this way, one obtains realistically simulated hyperspectral and directional top-of-atmosphere spectral radiance images, with all major effects included, such as heterogeneity of the landscape, non-Lambertian reflectance of the land surface, the atmospheric adjacency effect, and the limited spatial resolution of the instrument. The output of the image simulations can be used to demonstrate the capabilities of future earth observation missions. In addition, instrument specifications and image acquisition strategies might be optimized on the basis of simulated image analysis results, and new advanced data assimilation procedures could be validated with realistic inputs under controlled circumstances. This paper describes the applied methodology, the study area with the input images, the set-up of the actual image simulations, and discusses the final results obtained.     

实施创新教育,培养新世纪人才

本文概述了创新教育的目的、主要目标和实现途径。提出创新教育要注重文化素质教育和专业素质教育相结合;充分利用课堂教学,在传授知识的同时注重培养学生的科研修养和素质。     

Fuzzy Comprehensive Evaluation of Training Effect on Human Resource Development

On the basis of the essential connotation of the training effect on human resource development and the basic principles of setting up a index system, the evaluation index system of the training effect on human resource development in enterprises has been established. It evaluates the training effect on human resource development with the method of fuzzy comprehensive evaluation and achieves better results. It also provides a scientific, practical and quantitative method for the systematic analysis and comprehensive evaluation of the training effect on human resource development.     

Reduction of self-heating effect in SOI MOSFET by forming a new buried layer structure

An inherent self-heating effect of the silicon-on-insulator (SOI) devices limits their application at high current Ievels. In this paper a novel solution to reduce the self-heating effect is proposed, based on N+ and O+ co-implantation into silicon wafer to form a new buried layer structure. This new structure was simulated using Medici program, and the temperature distnbution and output characteristics were compared with those of the conven-tional SOI counterparts. As expected, a reduction of self-heating effect in the novel SOI device was observed.     

传统避雷针保护对信息防雷的危害

根据传统避雷针的保护方法和信息防雷的要求，结合工程雷击实例，剖析传统的避雷针保护对信息防雷的危害，并提出信息时代应用避雷针保护应遵循的原则，以确保信息设备的雷电安全。     

光学电压互感器的设计和试验

开发了基于Bi4Ge3O12晶体的Pockels电光效应的光学电压互感器(OVT)，阐述了OVT的结构设计、传感头的工作原理及其结构。对传感头进行了温度稳定性和时间稳定性试验，当温度在0—45℃范围内，传感器的相对误差为-0．4％—0．4％；在户外运行20多天的传感器的相对误差为-0．3％—0．3％。并依据相关标准对开发的220kV OVT样机进行了准确度、绝缘性能以及电磁兼容等一系列型式试验，试验结果表明，开发的OVT样机达到了预期的设计要求。