基于高速摄像机的电磁电器动态特性测试及其图像处理的研究

为了研究电磁电器动态特性测试的新方法,以智能交流接触器为例拍摄了智能交流接触器的动态过程,对采集的接触器触头、铁心等动态位移图像进行处理,然后应用二进小波多层多尺度分解完成降噪处理,此外本文采用样条求导方式对运动速度进行软测量,从而获得智能交流接触器的真实动态特性,介绍了电磁电器动态特性测试装置与数据处理新方法。该研究采用非接触测试方式,进行图像拍摄与降噪处理,实现了电磁电器动态过程全面、高速与准确的测量,为加快电磁电器产品的研究开发奠定基础。     

Zonal disintegration phenomenon in enclosing rock mass surrounding deep tunnels -- Elasto-plastic analysis of stress field of enclosing rock mass

The zonal disintegration phenomenon (ZDP) is a typical phenomenon in deep block rock masses. In order to investigate the mechanism of ZDP, an improved non-linear Hock-Brown strength criterion and a bi-linear constitutive model of rock mass were used to analyze the elasto-plastic stress field of the enclosing rock mass around a deep round tunnel. The radius of the plastic region and stress of the enclosing rock mass were obtained by introducing dimensionless parameters of radial distance. The results show that tunneling in deep rock mass causes a maximum stress zone to appear in the vicinity of the boundary of the elastic and the plas-tic zone in the surrounding rock mass. Under the compression of a large tangential force and a small radial force, the rock mass in the maximum stress zone was in an approximate uniaxial loading state, which could lead to a split failure in the rock mass.     

Relationship of hydrocarbon and source-rock in Nos.3-5 tectonic belts of the Lenghu area, northern Qaidam Basin

Based on analyses of the components of crude oil hydrocarbons and carbon isotopes, the content of normal alkane de-creased from 49.00% to 20.10% when moving from the No.3 to No.5 tectonic belt of the Lenghu area of the Qaidam Basin, while cycloalkanes increased from 30.00% to 52.20% and aromatic and branch chain alkanes increased gradually as well. The maturity of sterane in crude oil is higher than that of its source-rock, which shows that the hydrocarbons were generated from a deep source-rock of high maturity around the tectonic belts of the Lenghu area. The analysis of the characteristics of carbon isotopes also shows that these isotopes of hydrocarbon compounds in the No.4 and No.5 tectonic belt are apparently heavier than those in the No.3 belt. The results of our research show that the hydrocarbons in the No.3 tectonic belt are mainly from a relatively rich sapropelic substance, while the hydrocarbons in the No.4 and No.5 tectonic belt originated mainly from organic matter of a rela-tively rich humic type substance.     

Relation between structural evolution of the Longmenshan orogenic zone and sedimentation of its foreland basin

In order to determine the area for oil and gas exploration in China's north Sichuan basin, we have divided the time during which the Longmenshan foreland basin was formed into five periods, based on the sedimentary response relationship of the fore-land basin to structural evolution: 1) a late Triassic Noric period; 2) an early-Middle Jurassic period; 3) a late Jurassic to early Cre-taceous period; 4) a late Cretaceous to Paleogene-Neogene period and 5) the Quaternary period. As well, we analyzed the sedimen-tary environment and lithologic features of every basin-forming period. The results show that there are several favorable source-reservoir-cap assemblages in our study area, making it a major region for future oil and gas exploration in China's northern Sichuan basin.     

基于无线网的农业虚拟现实技术的研究、

针对传统农业在作物生长过程中遇到技术问题只能在网上或书上查得文字解决方案的弊端,作者将无线网技术与农业虚拟现实技术相结合,采用虎拟现实技术设计了一套虚拟农业专家系统,该系统使用802．11g作为无线网传输标准．利用作物现场的终端设备对作物生长情况进行实进监测和分析,并及时调用专家系统中的虚拟解决方案进行针对性的处理,从而可将损失减到最小．     

可监控EXE进程的Windows服务程序设计

EXE进程一旦意外停止,将给应用带来严重后果。该文基于微软的基础平台开发库设计了一个Windows服务程序,该服务程序在机器启动时自动运行指定EXE进程,在服务程序工作线程组中监控EXE进程运行状态,自动重启已停止进程,此服务程序可实现一个或多个EXE进程不间断运行。     

高校体育教学中学生创新能力的培养

从创新能力和体育教学的关系、体育教学的特性及创造教育实施原则等方面入手,对高校体育教学中学生创新能力的培养进行分析,并阐述其基本方法和途径。     

透过节能减排政策和制度看中国节能减排

随着世界人口的增长、现代工业的高速发展,不可再生资源遭到掠夺式开采、能源消耗几何级增长、环境污染程度大大超出了生态系统的承受能力。如何解决能源短缺与污染严重对经济和社会发展的影响已经成为世界性的难题,我国同样如此。因此,加强对节能减排体系的研究,对我国节能减排工作的开展具有非常重要的意义。对我国节能减排的政策和制度进行剖析,指出了我国节能减排政策、制度以及做法中存在的问题,并提出解决的方法。     

框架的行置换和列置换——处理复杂系统的新思维系列之四

本系列论文基于《多边矩阵理论》,由东方整体性思维所启迪,试图提供并完善一套从整体到局部处理复杂系统多指标问题、非均匀性问题、非线性问题的强有力的数学工具,并对其进行严格的理论推导和证明。本文利用群论的相关概念和结论,将其和框架的剖分运算相结合,引入了导出框架和对称框架的定义,证明了框架的行置换等价于列置换的结论,从而以后可以统一地处理指标间的置换问题。     

高等教育的公益性与高校学报的对应关系

高校学报是高等教育体系的有机组成部分,对高校学报的考察和定位不可脱离这一关系。高校学报的使命与高等教育的使命紧密相连,其基本属性与高等教育的基本属性是一致的。高校学报是公益性的出版单位,其出版的学报属于准公共产品。在出版业改革中,作为公益性出版的高校学报与所在学校的隶属关系无需改变。撇开与大学的整体关系,以刊论刊,孤立地将学报与营利性期刊等同对待是片面的。