Parallel computing for finite element structural analysis using conjugategradient method based on domain decomposition

1 Introduction Large and complex engineering problems often needmuch computation ti me and storage to run on ordinaryuniprocessor computers . Even if they can be solved ,powerful computation capability is required to obtainaccurate and reliable results within reasonable ti me .Parallel computing can meet requirements of high per-formance computing[1].Various types of parallel hard-ware architectures have been developed and parallelalgorithms adapted to these hardware architecturesproposed[2 ,3…     

成像系统对图像的退化作用

文中讨论了成像系统对静止图像质量产生的影响,综合考虑系统的各个组成部件的传递函 数,建立成像系统对图像退化的模型(传递函数),通过计算机模拟生成了退化后的图像。     

International collaborations in learning and teaching: perspectives from a visiting professorship

This article provides a reflection on the outcomes of an international collaboration between health librarians and academics at York St John University and Pacific University Oregon. In particular, it describes how a month‐long visiting professorship from an academic with a clinical librarian background at the Faculty of Health and Life Sciences helped to develop and inform teaching practice in the areas of information literacy and evidence‐based health practice on health programmes at Pacific University. Perspectives are offered from both institutions on the rich exchange of knowledge and practice that took place during the visit and the ongoing impact it has had on teaching practices. H. S.     

建筑节能设计浅谈

本文论述了建筑节能的必要性及建筑节能设计中几点应注意的事项     

Cn空间有界域上Cauchy-Leray公式和Cauchy-Fantappiè公式的拓广

本文得到Cn中有界域上积分核含有向量函数的Cauchy-Leray和Cauchy-Fantappiè的拓广式,同时还可以得到Cn空间中有界域上全纯函数著名的Cauchy-Fantappiè公式的一种积分核含有向量函数的拓广式,在公式中适当的选取参数,可以得到至今许多区域上光滑函数和全纯函数种种已有积分公式.     

大学英语教学改革中教师的角色转换

大学英语教学通过教学思想、教学模式和评价体系三个方面的调整和改革,逐步建立适应时代需要的个性化、多样化、立体化的教学体系。大学英语教学的深刻变革给传统的教学模式及传统教学中的教师角色带来了巨大的冲击和挑战。教师由传统教学中知识的灌输者转变成了学生学习过程中的组织者、帮助者、促进者。     

外商投资企业投资者股权转让若干问题的思考

本文从现行法律规范出发,结合实践问题,分析了外商投资企业投资者股权转让特殊性以及外资企业所涉及的国有股转让等问题,以兹对我国外商投资企业投资者股权转让规则的完善提供些许裨益。     

基于语料库的中国大学生英语写作的动名词搭配研究

文章通过对比中国学生语料库（CLEC）和英语本族语者语料库（LOB）中动名词搭配的使用情况,探究中国大学生和本族语者在该搭配上的特点和使用差异,并进一步比较非英语专业与英语专业大学生在动名词搭配上的差异。     

Epistemological beliefs and self-regulated learning with hypertext

This study investigated the relationship between epistemological beliefs, prior domain knowledge and self-regulated learning. Biology students (n?=?25) and humanities students (n?=?26) who varied in their epistemological beliefs learned with a hierarchical hypertext about the topic of genetic fingerprinting. During their learning processes, logfiles and questionnaire data were collected. Results indicate that students do metacognitively calibrate their learning process to the complexity of the presented learning material, e.g. by processing more complex deeper-level nodes longer. Furthermore, these calibration processes were significantly related to epistemological beliefs. For example, more ‘sophisticated’ epistemological beliefs were associated with processing more nodes, whereas more ‘naïve’ beliefs were related to spending more time on single nodes. Both effects were especially pronounced on deeper hierarchical hypertext levels. Prior domain knowledge also had an impact, especially on comprehensibility ratings: biology students considered all nodes more comprehensible than humanities students. Additionally, epistemological beliefs as well as prior domain knowledge were also significantly associated with the learning outcome: for example, more prior domain knowledge led to significantly higher learning outcome.     

Institutional change and resource endowments to science-based entrepreneurial firms

This paper considers the question of whether the resource endowments of science-based entrepreneurial firms are influenced by the way technology transfer is organised at the parent organisation. We studied one public research organisation in detail (IMEC, Belgium), by questioning all managers involved in technology transfer and the founders of all science-based entrepreneurial firms set up between 1986 and 2002. This research identifies three generations of companies at IMEC, mirroring the organisational changes in technology transfer policies and displaying distinct resource characteristics. Establishing an incubator structure for spin-offs seems to be a learning process during which little decision making can be exerted over senior management's social network in the financial and business community for securing the financial, technological and human resources for the science-based entrepreneurial firms.