题目：一种支持产品平台设计的多准则模块划分方法   总被引：2，自引：0，他引：2  

Wei WEI  Ang LIU  Stephen C.Y.LU  Thorsten WUEST 《浙江大学学报(A卷英文版)》2015,(1):1-10

目的：研究多准则约束下的产品模块划分方法,为企业建立稳健的模块化产品平台奠定基础。方法：采用改进的多目标进化算法对建立的多准则模块划分数学模型求解,并采用模糊集合评价机制进行最优解的寻取,得到基于多准则模块划分方法的产品模块划分结果。结论：通过改进的多目标进化算法求解多准则模块划分模型,能够得到有效支持产品平台设计的产品模块划分方案。通过与已有优化方法的比较验证了本文提出的多准则模块划分方法的优越性。  相似文献   

A Strategy for the Management,Preservation, and Reutilization of Geographical Information Based on the Lifecycle of Geospatial Data: An Assessment and a Proposal Based on Experiences from Spain and Europe     

Maria C. Porcal-Gonzalo 《Journal of Map & Geography Libraries》2015,11(3):289-329

In recent years, there has been a growing recognition of the fact that the proper management of information has to include concern for its preservation and future re-use. This ambition is particularly significant for geospatial data. The primary aim of this article is to define the European and Spanish frameworks for the preservation and reutilization of geographical information, with the ultimate goal of proposing an articulated, lifecycle-based data management model. With this, the intent is to shed some light on a complex, difficult and ever-evolving subject.

The article is divided into two main parts. The first part begins with a conceptual justification for geospatial data management and continues by synthesizing the current normative and technological framework for the preservation and reutilization of geographical information. Within this context, the implementation of Spatial Data Infrastructures (SDI) in Spain is evaluated. The second part begins with a case study from Spain that aims to identify different agents and flows that influence the lifecycle of geographical data, as well as the strengths and weaknesses found in each stage of the process under examination. Finally, the foregoing ideas are used in order to propose a SDI-related system for the management of geographical information.  相似文献   

Harnessing health information to foster disadvantaged teens' community engagement,leadership skills,and career plans: a qualitative evaluation of the Teen Health Leadership Program     

Alla Keselman  Einas A. Ahmed  Deborah C. Williamson  Janice E. Kelly  Gale A. Dutcher 《Journal of the Medical Library Association》2015,103(2):82-86

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Into the gray: a modified approach to citation analysis to better understand research impact     

Shannon L. Sibbald  Jennifer C. D. MacGregor  Marisa Surmacz  C. Nadine Wathen 《Journal of the Medical Library Association》2015,103(1):49-54

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Differential Susceptibility in Early Literacy Instruction Through Computer Games: The Role of the Dopamine D4 Receptor Gene (DRD4)     

Cornelia A. T. Kegel  Adriana G. Bus  Marinus H. van IJzendoorn 《Mind, Brain, and Education》2011,5(2):71-78

Not every child seems equally susceptible to the same parental, educational, or environmental influences even if cognitive level is similar. This study is the first randomized controlled trial to apply the differential susceptibility paradigm to education in relation to children's genotype and early literacy skills. A randomized pretest–posttest control group design was used to examine the effects of the Intelligent Tutoring System Living Letters. Two intervention groups were created, 1 receiving feedback and 1 completing the program without feedback, and 1 control group. Carriers of the long variant of the dopamine D4 receptor gene (DRD4 7‐repeat) profited most from the computer program with positive feedback, whereas they performed at the lowest level of early literacy skills in the absence of such feedback. Our findings suggest that behind modest overall educational intervention effects a strong effect on a subgroup of susceptible children may be hidden.  相似文献   

Playful and mindful interactions in the recursive adaptations of the zone of proximal development: a critical complexity science approach     

Federica Raia  Mario C. Deng 《Cultural Studies of Science Education》2011,6(4):903-914

We discuss Konstantinos Alexakos, Jayson Jones and Victor Rodriguez’s hermeneutic study of formation and function of kinship-like relationships among inner city male students of color in a college physics classroom. From our Critical Complexity Science framework we first discuss the reading erlebnisse of students laughing at and with each other as something that immediately captured our attention in being transformative of the classroom. We continue by exploring their classroom and research experience as an emergent structure modifying their collective as well as their individual experiences. As we analyze both the classroom and the research space as a complex system, we reflect on the instructor/students interactions characterized by an asymmetrical “power” relationship. From our analysis we propose to consider the zone of proximal development as the constantly emerging and transforming person experience (erlebnisse and erfahrung).  相似文献   

��It depends on what science teacher you got��: urban science self-efficacy from teacher and student voices     

Virginia L. J. Bolshakova  Carla C. Johnson  Charlene M. Czerniak 《Cultural Studies of Science Education》2011,6(4):961-997

In the United States today, urban schools serve the majority of high-poverty and high minority populations including large numbers of Hispanic students. While many Hispanic students perform below grade level in middle school science, the science teaching community as a whole is lacking elements of diversity as teachers struggle to meet the needs of all learners. Researchers have recognized that science teacher effectiveness, one consequence of self-efficacy among teachers, is associated with future science achievement and science-related careers of their students. This qualitative study explores how three science teachers’ effectiveness in the classroom impacts students’ science self-efficacy beliefs at one urban middle school. Hispanic students were the focus of this investigation due to demographics and history of underperformance within this district. Teachers’ perspectives, as well as outside observer evaluations of instructional strategies and classroom climates were triangulated to explore dynamics that influence students’ interests and motivation to learn science using a framework to link teachers’ sense of efficacy (focusing on student outcomes). Findings suggest the impact teacher effectiveness can have on student outcomes, including strengthened student science self-efficacy and increased science achievement. Building awareness and support in teachers’ sense of efficacy, as well as developing respectful and supportive relationships between educator/facilitator and pupil during the transition to middle school may construct permanence and accomplishment for all in science.  相似文献   

A Comprehensive Analysis of High School Genetics Standards: Are States Keeping Pace with Modern Genetics?     

Dougherty MJ  Pleasants C  Solow L  Wong A  Zhang H 《CBE life sciences education》2011,10(3):318-327

Science education in the United States will increasingly be driven by testing and accountability requirements, such as those mandated by the No Child Left Behind Act, which rely heavily on learning outcomes, or "standards," that are currently developed on a state-by-state basis. Those standards, in turn, drive curriculum and instruction. Given the importance of standards to teaching and learning, we investigated the quality of life sciences/biology standards with respect to genetics for all 50 states and the District of Columbia, using core concepts developed by the American Society of Human Genetics as normative benchmarks. Our results indicate that the states' genetics standards, in general, are poor, with more than 85% of the states receiving overall scores of Inadequate. In particular, the standards in virtually every state have failed to keep pace with changes in the discipline as it has become genomic in scope, omitting concepts related to genetic complexity, the importance of environment to phenotypic variation, differential gene expression, and the differences between inherited and somatic genetic disease. Clearer, more comprehensive genetics standards are likely to benefit genetics instruction and learning, help prepare future genetics researchers, and contribute to the genetic literacy of the U.S. citizenry.  相似文献   

拯救生命的给予     

T.J. Maciak  Joyce 《英语辅导》2015,(2):18-20

大多数的人总是倾向于临渴挖井而非居安思危,总觉得那些不幸之事不会降临到自己身上,但是大家有没有想过,也许有一天躺在病床上苦苦等待别人救助的会变成我们自己或者我们亲友?我是那些幸运儿之一,现在轮到我去帮助别人了。我最近进行了一次奇妙的旅行,刚从南非的德班回来,我在那里参加了第19届世界移植运动会。自1996年起,我就一直有参加这个移植运动会。无论怎么看,我  相似文献   

Enhancing the Executive Functions of 3‐Year‐Olds in the Dimensional Change Card Sort Task          下载免费PDF全文

Sammy Perone  Stephen J. Molitor  Aaron T. Buss  John P. Spencer  Larissa K. Samuelson 《Child development》2015,86(3):812-827

Executive functions enable flexible thinking, something young children are notoriously bad at. For instance, in the dimensional change card sort (DCCS) task, 3‐year‐olds can sort cards by one dimension (shape), but continue to sort by this dimension when asked to switch (to color). This study tests a prediction of a dynamic neural field model that prior experience with the postswitch dimension can enhance 3‐year‐olds' performance in the DCCS. In Experiment 1A, a matching game was used to preexpose 3‐year‐olds (n = 36) to color. This facilitated switching from sorting by shape to color. In 3 , 3‐year‐olds (n = 18) were preexposed to shape. This did not facilitate switching from sorting by color to shape. The model was used to explain this asymmetry.  相似文献