高效煤粉锅炉负荷提升优化实践

本文对金川集团东部贫矿锅炉房高效煤粉锅炉运行中负荷不能达产达标的问题进行了调查分析,探讨提出了负荷提升优化途径,并组织实施,取得了可观的经济效益和环保效果。     

合成化学课程本科教学体系的选择与实施简

结合淮南师范学院化学与化工系近年来开设的合成化学课程,探讨了合成化学课程对化学各专业的选择,合成化学课程教学体系应遵循的原则,合成化学课程教学内容及合成化学课程教学组织与实施。     

复合材料与工程专业实践教学体系的构建与实施简

专业实践教学是高等教育的重要组成部分,对于培养学生创新意识、创新精神和创新能力具有不可替代的作用。加强实践教学改革,必须要建立相对独立的实践教学体系。我们从专业实践教学体系的构建原则和运行保障出发,梳理复合材料与工程专业实践教学的理论和实践研究,并根据大学生创新实践能力的内涵要求,构建了以创新和实践能力培养为目标的高校一体化实践教学体系。     

The Examination for Professional Practice in Psychology (EPPP) in the era of evidence-based practice.

Professional psychology has increasingly moved toward evidence-based practice. However, instruments used to assess psychologists seeking licensure, such as the Examination for Professional Practice in Psychology (EPPP), have received relatively little empirical scrutiny. Therefore, the authors evaluated the available evidence in support of the EPPP’s validity and current use as a core component of professional licensure. Although the EPPP has in many ways been extensively evaluated, there is a paucity of criterion, predictive, and incremental validity evidence available. Further, several aspects of the content validation studies were examined, and the authors question whether the EPPP, as currently constructed, can meet its stated goals. Given that the EPPP is a high-stakes examination and given the authors’ best estimate (based on a sample of 16 states) that 35% of applicants fail the examination, it is recommended that the EPPP be more extensively evaluated. An outline of major decision points in this proposed evaluation process is provided, several suggestions for further research are proposed, and the field is encouraged to discuss these issues further. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

基于应用型人才培养数控实践教学分析与研究水

现代数控技术已成为机械制造业实现自动化、柔性化、集成化生产的基础技术。而数控技术人才的严重短缺已成为全社会普遍关注的热点问题。高等院校作为高技能人才培养的中坚力量，要理论与实践并重，应用与创新齐抓，注重综合能力的培养，重在培养具有创新意识的应用型人才。     

Review of Bioretention System Research and Design: Past, Present, and Future

This paper reviews the evolution of bioretention systems, a promising at-source storm-water best management practice. The introduction of bioretention systems in the 1990s by Prince George’s County, Md. is examined along with the motivations behind the development of the systems. A summary of the research findings on the performance of bioretention systems is provided including proposed design modifications to improve the field performance. Also included is an overview of past and current bioretention design guidelines in North America, as well as a discussion of issues surrounding the public adoption and implementation of bioretention systems. Potential alternative uses for the systems are highlighted and a review of bioretention modeling work is provided. Finally, the paper outlines research needs and anticipated future work necessary to bring about the widespread use of bioretention systems.     

Behind the kitchen door: A novel mixed method approach for exploring the food provisioning practices of the older consumer

Social Practice Theory offers a theoretical approach to understanding habitual, mundane and tacitly enacted practices that are performed within the domestic environment. To support the practical adoption of this theory, this paper reports and reflects upon a methodological application of Social Practice Theory which was used to investigate the domestic kitchen-based practices of older adults (aged 60+) in order to understand the role of food safety within the everyday performance of these. Social Practice Theory requires a research design that situates data generation techniques into the ‘space’ in which the practices are performed and gives equal investigative consideration to the physical and social spheres of practices. We demonstrate that these methodological principles necessitate the use of mixed methods, and this case study presents a ‘tool-kit’ of data generation techniques that produced visual, verbal, textual, technical and scientific data. Through the presentation of results at the level of the individual household, the case study demonstrates how the different data streams acted as analytical lenses which facilitated data corroboration and comparison, and provided the basis for a grounded conceptual elaboration of domestically situated food provisioning and handling practices and the role of food safety within these.     

以管理者视角突破C++指针教学难点

指针是C++语言教学的重点和难点。以一级指针、二级指针的教学为例,以管理者和被管理者的新视角突破指针教学的难点,帮助学生理解和提高应用指针的能力,取得良好的教学效果。     

形态生成与建造体验——基础教学中的材料教学实践与思考

本文介绍同济大学建筑与城市规划学院建筑设计基础教学中材料研究方面的一系列教学实践和思考,旨在探讨"材料"对于建筑形态的影响,思考材料与建筑地域性、时代性的关系;基于对材料意义的解构与重构,探讨从"抽象材料"到"具象材料"、从"形态构成"到"形态生成"、从"纸面绘图"到"建造体验"的训练方法.     

Storm-Water Management Using Street Sweeping

Although street sweeping is commonly regarded as a cost-effective storm-water best management practice, there is little quantitative evidence that street sweeping directly improves runoff water quality. In this paper, several previous street sweeping studies were reevaluated using statistical power analysis. Two-group, independent-sample one-sided t-test power analyses were performed using log-transformed event mean concentrations (EMCs) of total suspended solids, suspended sediment concentration or chemical oxygen demand. The effect size between the two groups was estimated using the sweepers’ pickup efficiency, which showed that the failure to detect the difference between mean EMCs of the two sample groups (i.e., unswept and swept groups) is likely due to limited sample numbers. Too few samples, which also resulted in a high coefficient of variation, were analyzed to detect the likely difference between swept and unswept observations. In addition, the temporal gap between street sweeping and subsequent storm events was not controlled to improve statistical power.