Structural analysis of information digitization on process of Dujiangyan area in Sichuan earthquake(Ms 5.0)

This paper attempts to analyze geothermy revealed by the sounding data at 8 h and 20 h every day from China Meteorological Administration and the data counted per minute such as the wellhead temperature,the electromagnetic disturbance,the ground tilt and so of water level instrument in Sanxing of Chengdu with the method of information digitization.The result shows the recognizable differentiation of the change process before and after the earthquake,provides an analytic method for the improvement of earthquake prediction or prevention,and shows the feasible further research and the wide application prospect.     

露天矿节理岩体三维网络模拟与概率损伤分析

针对鞍钢眼前山露天铁矿南帮节理岩体边坡的结构特征,应用Monte-Carlo随机模拟原理,进行南帮边坡岩体的三维节理网络模拟,直观地展示了岩体的空间信息.基于岩体损伤力学的基本原理与三维节理网络的计算机模拟技术,探讨了节理岩体损伤张量随机矩阵概率分布规律.结果表明,眼前山铁矿南帮岩体概率损伤张量矩阵的元素均服从正态分布.     

浅析元代钧瓷工艺与其在陶瓷领域的作用

就陶瓷在各个时代的发展，论述了元代钧窑瓷器工艺与其在陶瓷领域后期所起到的作用。     

Integral Theorems Based on a New Gradient Operator Derived from Biomembranes (Part II): Applications

Introduction Yin et al.[1, 2] described a gradient operator ? derived from biomembranes with “the second gradient operator” defined on a curved surface. Yin[2] then used the second gradient operator to develop a set of integral theorems named “the second category of integral theorems” on curved surfaces, including the second divergence theorem, the second gradient theorem, the second curl theorem, and the second circulation theorem: d d ?2 dA C A? A = ?K∫∫ ∫ ∫∫i v si Li v A iv (1) …     

基于 BP 人工神经网络储集层参数面向微相预测法

为了提高ＢＰ人工神经网络学习速度和精度，以及对储参预测的效果，本文从学习样本着手，针对储集层不同的沉积微相，及其沉积环境等特点的不同，选取相应的学习样本模型——面向微相预测法。充分体现了样本典型性、代表性的地质意义。其效果比人们常规作法有显著的改善。     

导热系数与自然对流换热系数的综合测定

TheComprehensiveMeasurementforHeatConductionCoefficientandFreeConvectlonCoefficientShenYajun（OceanEngineenngCollegeofZhejiangOceanUniversity，Zhoushan316004）导热系数测定与自然对流换热系数测定是工科院校传热学课程的两个基本实验。一般，这两个实验分别采用不同的装置进行。我院制冷专业自1991年起开设了”圆球法测定粒状材料导热系数’的实验，但由于每届学生只有一个班，每年只需做一次，在大部分时间中设备闲置，利用率很低。而另一方面，由于实验经费不足，每一实验的设备配套数均很少，一个实验要分多次进行…     

Geochemical characteristics of fossil Solenites murrayana cuticles from the Jurassic in Lanzhou, northwest China

Through geochemical analysis on cuticles of the Jurassic fossil Solenites murrayana L.et H. from the Yaojie Coalfield in Lanzhou, northwest China, and by comparison of geochemical features with its nearest living equivalent, Ginkgo biloba, we show that the characteristics of organic matter of the fossil plant cuticles accord with evolutionary features of asphalt in oil formation. The content analysis of organic matter indicates that the geochemistry is equivalent to rotten mud-sapropel humus types from Mesozoic and Cenozoic source rock in China. Some analysis data of organic matter indicate that Solenites murrayana cuticles are in a low mature stage, which coincides with the hydrocarbon generation model of cutinite in coal. Moreover, distribution features of soluble organic matter of cuticles show that fossil plant cuticles have a definite action in forming terrestrial high-wax oil, which has testified the contribution of high plants to waxness. The present study proves that Ginkgophytes abundant in the Jurassic were a high potential plant in the formation of coal-bed hydrocarbon.     

相对论"多媒体计算机辅助教学"(MCAI)课件简介

相对论多媒体ＣＡＩ课件是可以直接应用于课堂教学的适用性很强的专题型课件，本文简要介绍了该课件概况、特点及环境设置。     

约化轴对称Einstein-Maxwell场方程的统一二重Ernst形式及其新解

本文将二重复函数方法应用于更大范围，同时处理轴对称Ｅｉｎ－ｓｔｅｉｎ－Ｍａｘｗｅｌ方程的三种重要约化情况：稳态真空、静电和静磁场方程，将它们写为统一的二重复Ｅｒｎｓｔ形式。由此进一步得到了各约化情况解之间的一些变换关系，其中之一实现了Ｂｏｎｎｏｒ变换的解析延拓，并做为应用实例，具体给出了一些解，其中许多是新的。     

回收镀金漂洗水中金的研究

采用二步吸附交换法回收镀金漂洗水中的黄金，并对吸附剂吸附机理、吸附容量等进行了研究。