中小企业ERP实施成因初探

通过对一个中小企业实施ERP的典型案例分析，归纳出了中小企业实施ERP失败的主要原因。并给出了中小企业实施ERP成功的要点。     

Environmental Issues of Geothermal Development in Yangbajing, Tibet and the Countermeasures

The pollution source and pollution state of surface water is respectively assessed with equal-standard-pollution-load index and Nemero index, and the habitans' health is assessed as well by comparison with pre-development of geothermal field. Results show that: 1 ) Three pollutive factors obviously fail to attain the required standards and their order sorted by impact degree is As＞F- ＞S2-. 2) The Nemero index of Donggua cross section of Duilongqu River is 0. 725and the water quality is at mildly-polluted level. 3) In Lhasa River, the Nemero indexes of cross sections affected by geothermal fields are much higher than that of the unaffected one, which shows the present and potential impacts of geothermal development. 4) Much more inhabitants nearby got trichomadesis sickness after geothermal development, which shows that the surface water pollution in this area has threatened the inhabitants' health. In addition, other environmental issues caused by Yangbajing geothermal development are analyzed and some countermeasures are proposed.     

复杂回转面刀具的计算机辅助造型与加工过程仿真

加工旋转锉复杂回转面刀具时，砂轮与工件的相对运动轨迹一般是复杂运动，只有用多坐标联动的数控装置才能实现，为了验证理论推导和计算的正确性，本文对旋转锉的加工过程进行了计算机仿真，为充分利用国内外在计算机图形学和CAD方面的最新成就，本文在重庆大学机械传动国家重点实验室的Sum-CAD工作站上对引进的I-deas软件包进行了应用开发，第一次将计算机造型应用于复杂回转面刀具有成形与加工，该工作站及三维图形功能对于特种回转面刀具是一个强有力的研究工具。     

一种基于数字水印的错误检测和定位技术

为了增强视频通信系统在有误码信道的适应能力 ,提出了一种基于数字水印技术的错误检测方法 ,使得解码器可以对误码块进行有效的补偿。其原理为编码器在量化后离散余弦变换 (DCT)系数中嵌入易碎的数字水印 ,解码器可以通过提取水印从而确认错误以及错误发生的首宏块位置。仿真结果证明 :在信道误码率为 5× 10 - 4时 ,与常用的基于语法的方法相比 ,本方法的错误检测率是其的 1.32～ 1.82倍 ,错误正确定位率是其的 2 .95～ 5 .32倍 ,而且 PSNR只有微弱降低 ,同时算法复杂度很低     

Erosion and Sediment Production in Small Watershed in Purple Hilly Areas and Prevention Techniques

Purple Soil distributes extensively and mainly in China. Because of abundant easily weatherable parent rocks/materials and unstable soil structure, and also influenced by parent materials, usage systems, and slope gradients, erosion and sediment production of purple soils are very severe with main fashions of water erosion and gravitational erosion. Basing on observed data in small watersheds, rainfall erosivity,vegetation coverage, previous soil water content, flow and relating factors such as climate, topograph of small watershed,land usage, and soil kinds are all the influence factors of erosion and erodibility of purple soil as well as sediment production and transport in small watershed of purple hilly areas.The effective technological countermeasures of ecosystem restoration, agricultural tillage for water conservation and erosion prevention, agriculture project, and soil changing for fertility and anti-erosion were provided.     

调动学生实验积极性提高实验教学质量

根据问卷调查情况，从五个方面分析了我院实验教学的现状以及存在的问题，结合实际情况，提出了改进和改革的方法，尽快将我院的实验教学水平提高到一个新的水平。     

在线固溶条件下的输出辊道受热分析

为满足300系列奥氏体不锈钢轧后在线目溶处理的要求，针对某厂已有设备条件，进行在线固溶处理输出辊道的改造，利用ANSYS有限元分析软件，通过对不同结构和材质条件下输出辊道的受热分析，为输出辊道的改造提供了理论依据。结果表明，将原有的铸铁辊道改为陶瓷辊道能够满足生产的要求。     

坚持以人为本,推进高职应用文课程改革

应用文在高职院校普遍开设，是培养实用型人才不可缺少的课程。在“以人为本”思想指导下，高职应用文课程改革不能只考虑课程本身特点，课程改革应充分考虑专业教学和学生实际，在教学观念、教学内容、教学手段、教学评价等方面要真正做到“以人为本”，真正体现高职应用文课程的价值，     

农村经纪人是现代农业发展的中坚力量——以吉安市农村经纪人的分析为例

农村经纪人是市场经济发展的产物。随着市场经济的发展 ,农村经纪人在思想观念、文化素质、经营能力等方面都发生了深刻的变化 ,其影响和作用越来越大 ,有效地带动了农村经济和社会事业的进步。实践表明 ,农村经纪人已成为农村先进生产力的代表和现代农业经济发展的中坚力量。尽管农村经纪人具有较强的活力 ,适应市场能力强 ,但他们在自身发展的过程中还有不少问题 ,同时还受到政策、环境、市场等方面的制约。各级政府和有关部门要积极从舆论导向、政策扶持、科技信息和引导服务等方面为农村经济人创造一个更为宽松的社会和市场环境 ,充分发挥农村经济人在农村和农业经济建设中的重要作用