Static and dynamic damage analysis of mass concrete in hydropower house of Three Gorges Project

This paper establishes a 3D numerical model for 15# hydropower house of the Three Gorges Project (TGP) and performs a nonlinear static and dynamic damage analysis. In this numerical model, a coupling model of finite and infinite elements for simulating infinite foundation of hydropower station is adopted. A plastic-damage model based on continuum damage mechanics, which includes the softening and damage behavior under tension is considered for the concrete material. The dynamic equilibrium equations of motion are solved by using the HilberHughes-Taylor (HHT) time integration method. Firstly, the static damage response analysis of the hydropower station is conducted due to high tensile stress resulting from large water head and diameter of an inlet pipe. Then, on the basis of static simulation, the dynamic damage analysis of hydropower house subjected to earthquake motion is simulated. Numerical results show that under large water head and diameter of an inlet pipe of the project, the damages are mainly located near the top of the spiral case from the inlet section to the 0° section; under combined loadings of static loads and earthquake, the damages of the concrete surrounding the spiral case increase insignificantly; however, some damages occur on the side walls of the main powerhouse.     

动态插入数据在ASP.NET应用程序开发中的应用研究

动态插入数据是ASP.NET 应用程序开发人员经常遇到的问题,成功的关键在于设计正确的逻辑思路。文章结合实例在逻辑思路的设计与实现方面进行了研究。     

供应商选择中的层次分析方法

以钢铁企业轧辊采购为例,探讨层次分析法在供应商选择中的应用过程,提出将层次分析法模块化嵌入ERP系统中,丰富ERP系统的供应商选择功能。     

The assessment of the readiness of five countries to implement child maltreatment prevention programs on a large scale

This study aimed to systematically assess the readiness of five countries – Brazil, the Former Yugoslav Republic of Macedonia, Malaysia, Saudi Arabia, and South Africa – to implement evidence-based child maltreatment prevention programs on a large scale. To this end, it applied a recently developed method called Readiness Assessment for the Prevention of Child Maltreatment based on two parallel 100-item instruments. The first measures the knowledge, attitudes, and beliefs concerning child maltreatment prevention of key informants; the second, completed by child maltreatment prevention experts using all available data in the country, produces a more objective assessment readiness. The instruments cover all of the main aspects of readiness including, for instance, availability of scientific data on the problem, legislation and policies, will to address the problem, and material resources. Key informant scores ranged from 31.2 (Brazil) to 45.8/100 (the Former Yugoslav Republic of Macedonia) and expert scores, from 35.2 (Brazil) to 56/100 (Malaysia). Major gaps identified in almost all countries included a lack of professionals with the skills, knowledge, and expertise to implement evidence-based child maltreatment programs and of institutions to train them; inadequate funding, infrastructure, and equipment; extreme rarity of outcome evaluations of prevention programs; and lack of national prevalence surveys of child maltreatment. In sum, the five countries are in a low to moderate state of readiness to implement evidence-based child maltreatment prevention programs on a large scale. Such an assessment of readiness – the first of its kind – allows gaps to be identified and then addressed to increase the likelihood of program success.     

基于项目式的计算机应用基础课程改革与实践

针对高职教育的特点和社会的用人需求,本文通过在高职计算机应用基础课程中进行项目式教学改革和实践,以完成实际工作项目和任务引领教学,强调理论与实践相结合,让学生在完成任务的过程中学习相关知识、培养相关技能、发展学生的综合职业能力。     

基于真实项目的网络营销课程设计探究

以网络营销课程为实例,从课程的项目化设计及项目化课程设计需要注意的问题两方面,阐述如何基于真实项目带动教学.     

5-6岁幼儿故事复述能力研究——以西安市4所幼儿园为例

幼儿故事在幼儿发展和幼儿园教学中起着非常重要的作用,不同的幼儿在不同的故事呈现方式中表现出不同的复述特点。本文采用多彩光谱语言评估标准,对从西安市市区4所不同类型幼儿园中获得的126份语言样本进行了分析。研究结果显示,图书组和录音组幼儿的故事复述能力差异不显著,视频组幼儿在故事复述能力测试中总体得分较低。尽管从总体上看,许多幼儿的复述能力处于同一水平,但构成复述能力的要素却存在较大的个体差异。不同幼儿在同一语言活动中复述故事的字数和语言特点各不相同。     

Application of real options analysis for pharmaceutical R&D project valuation—Empirical results from a survey

Real options analysis was often recommended as an emerging valuation technique for high-risk investment projects. Former inter-sectoral surveys have drawn an ambivalent picture of real options usage in general. In addition, there is a lack of sector-specific investigations. In the following article the results of an in-depth analysis of collected empirical data regarding the application of this new tool in the pharmaceutical sector is presented by capturing the internal view from the pharmaceutical companies themselves and the external view from the health care departments of financial service firms. R&D stage specific modi of application, reasons for reluctance in the employment of real options and their assumed future prospects are elucidated.     

Intrinsic Factors for Continued ERP Learning: A Precursor to Interdisciplinary ERP Curriculum Design

Unilateral enterprise resource planning (ERP) curriculum improvements from the instructor's perspective are likely to generate only limited success. Understanding student motivations and beliefs with ERP systems is the missing link to effective ERP education. Relatively little attention in the ERP literature has been given to student learning associated with ERP experience, and almost none to factors influencing current and expected student beliefs and behaviors relative to ERP. The complexity of ERP systems demands that beliefs and behaviors be considered when planning ERP curricula. In the present study, the Theory of Planned Behavior was extended to examine students’ intentions to explore additional aspects of ERP after their class exercises. When considering all students, attitude and subjective norm had positive and significant effects on intentions to continue ERP learning. Subjective norm also affected attitude, and availability of support materials had a positive effect on subjective norm. Distinctive patterns are found for the construct relationships between student groups who valued ERP education (the engaged) and those who placed little or no value on ERP education (the undecided). Results from competing model analyses indicate that support materials influenced the engaged and undecided groups differently. Strategies for ERP curriculum design are provided.     

基于虚拟化技术的主机系统总体架构研究

虚拟化技术正成为信息系统平台资源整合的一项重要内容，本文介绍了虚拟化技术策略，提出了网络层、主机层、存储网络层和存储设备层四个层次部署的主机系统总体架构，对各个层次的系统配置和技术要求进行了研究，为主机系统设计提供了一个先进的解决方案。