GFRP筋混凝土板在拱效应下的挠度计算

针对美国混凝土结构设计规范(ACI440.1-06)未考虑玻璃纤维复合增强塑料筋(GFRP筋)混凝土板中拱效应的作用,挠度往往被高估的问题,对17块端部受到约束的混凝土板带进行跨中集中荷载破坏性试验,以获得更准确的挠度计算方法.结果发现;试件开裂后,拱效应作用逐渐明显.挠度的变化可分为开裂前、开裂时突变和拱效应形成后3个阶段.根据17块混凝土板的试验结果和前人的试验,量化混凝土板中拱效应的影响,结合虚功原理推导出GFRP筋混凝土板的挠度计算方法.板带挠度为净跨的1/800和1/350时,根据ACI规范,按简支板计算的预测荷载为试验值的0.388和0.411倍;所推导方法预测荷载与试验值之比为0.969和1.044.推导方法的预测结果与现行规范计算值进行对比,与试验值吻合得更好.     

Living Life as Inquiry

In this paper I explain what I mean by living life as inquiry, showing how I apply notions of inquiry as method to many areas of my professional and personal activities and how research ideas are generated and tested throughout my life space. The paper has twin tracks which reflect the interwoven processes I am describing and advocating. One is more practice based; in it I outline some of my inquiry practices and dilemmas, and give two examples from my work situation. The second track is more focused on theory, highlighting ideas about systemic analysis, influencing change, relational work, and gender. Writing the paper became an example of my topic. I therefore note features of the text which illustrate processes and practices of inquiry.     

蒙药协日嘎-4片利尿作用的实验研究

目的：观察蒙药协日嘎-4片的利尿作用.方法：运用大鼠钟罩法和小鼠滤纸称重法,观察尿量、排尿次数并做尿液分析.结果：蒙药协日嘎-4片明显增加大鼠和小鼠排尿量和排尿次数.结论：蒙药协日嘎-4片有明显的利尿作用而且对尿液成份没有影响.     

流体吸附层厚度计算及应用分析

根据流固吸附特性和分子间能量的变化规律来确定表面流、固体相互作用的程度,对表面吸附性能和吸附层进行描述,得出以能量表示的吸附层厚度表达式;从而确定描述表面粘度变化计算的表达式中的重要参数-吸附层厚度,粘度描述是润滑工程领域研究的基础.本文的研究适用于以流体膜为基础进行工作的研究,是纳米级润滑理论研究必须解决的问题之一.     

A Fresh Look at The Systems Approach and an Agenda for Action: Peeking Through the Lens of Churchman's Aphorisms

This paper critically examines some important topics of systemic thinking to understand how our perception of problems can be enhanced and how the chances of deception can be mitigated while dealing with real-world problems. To achieve this objective, an attempt is first made to scrutinize some of the key issues of systemic thinking by looking through the lens of Churchman's aphorisms at: (1) the illusion of completeness and closure, (2) the meaning of holism, and (3) the concept of ‘Interbeing’. A preliminary ‘agenda for action’ is then laid out suggesting ways for increasing our perception and for minimizing the chances of being deceived in dealing with systems problems in practice.     

连续生化振子的定性分析

对一类生化反应系统的非线性动力行为进行定性分析，并利用计算机模拟得到反应动力学方法的解.     

矢量在解析几何中的作用

矢量代数是数学、物理等现代科学研究中的重要工具 ,它对明确概念、简化公式以及掌握客观规律的实质有较大价值 ,尤其在几何学中更具有直观性与简洁性 .此外 ,矢量所具有的特性还可以使一些几何问题得到巧妙而又完美的解决 .本文通过实例说明了矢量在解析几何中的作用 .     

教师校本专业成长——行动研究

行动研究是西方在20世纪70年代兴盛起来的一种教育研究方法。行动研究所秉持的信念、方法和反思实践理性的认识论使它成为教师校本专业成长的一种有效方式。它为解决传统“技术理性”的实证主义教育研究中理论与实践的分离问题，找到了一条有效的途径。     

Clarke—Ekeland—Lasry共轭作用原理与Ekeland指标理论

作者在文章中研究了著名的Ｃｌａｒｋｅ－Ｅｋｅｌａｎｄ－Ｌａｓｒｙ共轭作用原理，探讨了在凸Ｈａｍｉｌｔｏｎ系统的周期解存在的问题，线性正定Ｈａｍｉｌｔｏｎ系统的指标理论和非线性Ｈａｍｉｌｔｏｎ系统的周期解的指标中的应用。     

Distance Education: A Reflective Action Research Project and Its Systemic Implications for Higher Education

This reflective action research study examines faculty experience with distance education. Distance education has become increasingly of interest in higher education and is seen by many as the opportunity for systemic change in higher education. This study is a reflective action research project which examined the author's experiences teaching a distance version of a basic instructional design course at the same time as teaching a residential version of that same course. The examination finds significant faculty issues that emerged during the experience and specifically found concerns with the distance education learner. In the end, the study finds that as a tool for systemic change of higher education, distance delivery will have to engage faculty with their concerns in more substantive ways than they have to date. In essence, this study asserts that the current demands on distance educators are not motivating for traditional faculty members because of increased time demands, lack of traditional rhythm, lack of personal contact with students, and less evident interest among distant students in the areas that faculty value.