心墙土石坝有限元渗流及应力变形分析     

曾素均  李密  赵志峰 《毕节学院学报》2017,35(3)

为对设计进行理论验证,本文结合某粘土心墙土石坝实际工程,基于有限元法对坝体在竣工期和正常水位工况下坝体心墙应力、变形、渗流以及心墙水力劈裂发生的可能性进行分析.结果表明,坝体各部位的应力、变形、渗流情况均满足各种工况的要求,计算结果较好的符合工程的常规规律,对指导施工有一定的参考价值.  相似文献   

Establishing a Center to Support Faculty Research     

Laura Goodwin  Elizabeth Kozleski  Rodney Muth  Lynn K. Rhodes  Kim Kennedy White 《Innovative Higher Education》2005,30(4):251-268

This article describes the establishment in fall 2002 of a School of Education Research Center designed to support faculty in increasing productivity and quality in research. Details are provided about center goals, services, staffing, space, resources, and logistics during the first year of operation. In addition, data are shared about faculty usage of the Center, the level of faculty satisfaction with center services in the first year, and initial increases in faculty productivity. The article concludes with plans for continued data collection to monitor the impact of the Center, a discussion of lessons learned at this point in the Center's development, and possibilities for the evolution of the Center. All authors are at the University of Colorado, Denver. Laura Goodwin, Ph.D., University of Colorado at Boulder, is Interim Associate Vice Chancellor for Faculty Affairs and continues to serve as a Faculty Research Associate. Elizabeth Kozleski, Ed.D., University of Northern Colorado, is the Associate Dean for Research in the School of Education. Lynn Rhodes, Ed.D., Indiana University, is the Dean of the School of Education. Rodney Muth, Ph.D., Claremont Graduate School, is a professor of Administrative Leadership and Policy Studies in the school and chaired the Research Center Advisory Board. Kim Kennedy White, M.A., University of Oregon, was the original School of Education Research Center Coordinator and was responsible for collecting most of the data included in this study.  相似文献   

平衡计分卡导向下的战略预算管理的思考     

周密  曾维林 《宁波职业技术学院学报》2005,9(4):6-7,28

平衡计分卡是以战略为中心，能将企业战略目标逐级分解转化为各种具体的相互平衡的业绩评价指标体系的一种先进的管理工具。相对于传统的业绩评价和企业战略分析模式，平衡计分卡的创新思维是显而易见的。平衡计分卡非常注重各种利益关系的平衡，它通过财务、客户、内部经营、学习和成长等4个方面的多种指标揭示业绩产生的动因。将其引入到预算管理中，使平衡计分卡的战略优势与预算管理进行充分有效的整合。  相似文献   

The Roles of Parental Support and Family Stress in Adolescent Sleep          下载免费PDF全文

Kim M. Tsai  Ronald E. Dahl  Michael R. Irwin  Julienne E. Bower  Heather McCreath  Teresa E. Seeman  David M. Almeida  Andrew J. Fuligni 《Child development》2018,89(5):1577-1588

The current study examines the association between parental support and adolescent sleep under varying levels of family stress. Participants included 316 adolescents (M_age = 16.40 years, 43% male) and their parents (M_age = 45.67 years, 91% mothers) from diverse ethnic backgrounds. Both adolescents and parents completed questionnaires and adolescents wore wrist actigraphs and completed self‐reports on their sleep for 7 consecutive days. Results indicated that under contexts of family stress, more parental support was linked to longer sleep duration, less sleep variability, and less time spent awake during the night. Findings suggest that under contexts of family stress, cohesive family relationships may provide a sense of stability and security that is necessary for healthful sleep.  相似文献   

Pedagogical and technological augmentation of mobile learning for young children interactive learning environments     

Yanghee Kim  Diantha Smith 《Interactive Learning Environments》2017,25(1):4-16

The ubiquity and educational potential of mobile applications are well acknowledged. This paper proposes six theory-based, pedagogical strategies to guide interaction design of mobile apps for young children. Also, to augment the capabilities of mobile devices, we used a humanoid robot integrated with a smartphone and developed an English-learning app that applied the design strategies to this environment. Our observations of children's one-on-one use support the promise of the strategies and the combined use of robots and mobile devices to be a viable option to help optimize mobile learning.  相似文献   

中西古代婚姻比较研究     

杨蜜 《绥化学院学报》2004,24(4):109-111

本文立足于中国的春秋战国时代，西方的中世纪这两个特定的历史时期中西方婚姻制度的规定，对中西方婚姻分别从结婚的目的、婚姻成立的要件、当事人在婚姻中的地位、婚姻的形式等方面进行论述，探求中西方古代婚姻理念的异同及其原因，以期为中国未来的法治建设提供思路。  相似文献   

有源滤波器的计算机仿真模拟     

杨密  李振新 《新乡师范高等专科学校学报》2002,16(2):39-41

介绍了OrCAD/Pspice 9软件的特点及其应用 ,并运用该软件设计了一个二阶模拟带通滤波器 ,对它进行计算机仿真模拟。  相似文献   

A critical incident study: Exploring Korean workers’ experiences with career chance events     

Kim  Namhee  Baek  Pyounggu 《International Journal for Educational and Vocational Guidance》2020,20(3):613-634

We investigated South Korean workers’ reflections on career chance events in terms of types of chance occurrences and factors that influence how these are reacted to. A critical incident technique was used to collect data from 85 participants using an open-ended questionnaire. Various types of events that happened unexpectedly were identified through a two-dimensional framework: whether an event was relationship based or experienced based, and whether it occurred in personal areas or work areas. Influencing factors that affected the participants’ reactions were also categorized using a two-dimensional framework: internal or external, and facilitating or discouraging dimensions.

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新世纪第一个10年中国教育技术学科的国际交往研究     

任友群  王觅 《现代远程教育研究》2011,(3):3-15

我国教育技术起步较晚,大部分理念和技术都是从国外引入并逐步加以本土化的。国际交往对于我国教育技术的发展具有很大的作用,作为我国首次全方位关注教育技术国际交往的研究,其意义就更为重要。21世纪以来,我国教育技术领域的国际交往越来越频繁,当前的主要途径有国内师生出访交流,国外学者来华作报告、进行合作交流,对国外学者进行专访对话,学者赴外参加国际会议或国内举办国际会议,以及翻译国外著作等。10年来,随着国际合作内容不断丰富,其研究越来越广泛并走向深入,主要集中在学科发展、远程教育和学习模式等10个领域。这些国际交往使我国教育技术学科地位得到巩固和发展,研究领域得到拓展,研究方法更加科学和规范。评估10年的国际交往,今后更应加强实质性合作研究,提高交流实效,重视国际项目合作,避免停留在表面或流于形式,要以一种平等合作、批判性、包容性的态度进行国际交流和对话。  相似文献   

Socioeconomic strata, mobile technology, and education: a comparative analysis     

Paul Kim  Teresita Hagashi  Laura Carillo  Irina Gonzales  Tamas Makany  Bommi Lee  Alberto Gàrate 《Educational technology research and development : ETR & D》2011,59(4):465-486

Mobile devices are highly portable, easily distributable, substantially affordable, and have the potential to be pedagogically complementary resources in education. This study, incorporating mixed method analyses, discusses the implications of a mobile learning technology-based learning model in two public primary schools near the Mexico-USA border in the state of Baja California, Mexico. One school was located in an urban slum and the other in a rural village community. Empirical and ethnographic data were collected through a series of achievement tests, observations, surveys, and interviews involving 160 s grade school children recruited by convenience sampling. The general technology infrastructure, distinctive features of mobile learning to supplement literacy development, profound contextual phenomena arising from the two uniquely underserved communities, and social factors possibly influencing the educational experiences are discussed. The findings suggest that students in the rural village, seriously lacking educational resources and technology exposure, may have benefited substantially more from mobile technologies than urban school students possibly due to their relatively higher socio-economic status and higher parental involvement and interest in education. In contrast, there was no evidence of interaction with parental education levels, the experience of teachers or school principals, or the teacher’s perception or preparation of the technology. Overall, the mobile learning technology adoption was rapid, seamless, and actively driven by the students rather than the teacher. The challenges of the phenomenal migratory nature of most families in this unique geographical region are also discussed to benefit future studies.  相似文献