Linear network theory: analysis,properties, design and synthesis : Norman Balabanian and Theodore Bickart. 638 pages,Matrix Publishers,Beavertown, Oregon, 1981. Price $32.95.     

Y.H. Ku 《Journal of The Franklin Institute》1984,317(1):55

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Positive Illusion of exemplary altruists     

Jee Y. Lee  Hae Y. Chung 《Asia Pacific Education Review》2008,9(2):94-100

This paper examines the relationship between altruism and positive illusion, as formulated by Taylor and Brown (1988). It was predicted that, compared to the non-exemplary, general population, exemplary altruists would exhibit a higher level of positive illusion, which, in turn, suggests a higher level of mental health. Forty exemplary altruists and forty non-exemplary altruists were assessed in terms of positive illusion and compared with each other using Hotelling T²followed by univariatet-test. The results supported the prediction that exemplary altruists showed higher scores in terms of positive illusion than that of the non-exemplary general population. The implications of the results are discussed.  相似文献   

Comparing the Impacts of Tutorial and Edutainment Software Programs on Students’ Achievements, Misconceptions, and Attitudes towards Biology   总被引：2，自引：2，他引：0  

Yılmaz Kara  Selami Yeşilyurt 《Journal of Science Education and Technology》2008,17(1):32-41

The purpose of this study was to investigate the effects of tutorial and edutainment design of instructional software programs related to the “cell division” topic on student achievements, misconceptions and attitudes. An experimental research design including the cell division achievement test (CAT), the cell division concept test (CCT) and biology attitude scale (BAS) was applied at the beginning and at the end of the research. After the treatment, general achievement in CAT increased in favor of experimental groups. Instructional software programs also had the positive effect to the awareness of students’ understandings to the general functions of mitosis and meiosis. However, the current study revealed that there were still some misconceptions in the experimental groups even after the treatment. It was also noticed that only using edutainment software program significantly changed students’ attitudes towards biology.  相似文献   

The geometrical location of information centers     

D. H. Rothenberg  D. Y. Ho 《Information processing & management》1977,13(6):317-327

The use of geometrical factors to locate information centers for a spatially distributed user population will be shown. The total amount of information for the community of users is considered to be predetermined. A proportion of that information is to be allocated to each information center created. An optimal user versus distance and contents of the center compromise will be obtained using standard mathematical programming techniques. An interesting theoretical situation results for those cases where the “satisfaction benefit” due to quantity of information increases more slowly than the quantity of information. For such cases, the optimal decentralization (or pluralization) is no decentralization at all—a single location results. A case study locating the Mathematics information of a University concludes the work.  相似文献   

Focused Activities and the Development of Social Capital in a Distributed Learning “Community”     

Y. Connie Yuan  Geri Gay  Helene Hembrooke 《The Information Society》2006,22(1):25-39

This study examined the development of individual social capital in a distributed learning community. Feld's theory of focused choice predicts that the formation of network ties is constrained by contextual factors that function as foci of activities. In our research, we examined how group assignment and location could function as such foci to influence the development of individual social capital in a distributed learning community. Given that networks with different content flows may possess different properties, we examined two different types of networks—task-related instrumental networks and non-task-related expressive networks. A longitudinal research design was used to evaluate the evolution of networks over time. Hypotheses were tested using a sample of 32 students enrolled in a distributed learning class. The results show strong support for Feld's theory. While serving as foci of activities to organize social interactions, both group assignment and geographic separation can also function to fragment a learning community.  相似文献   

影响矩作为测度单篇论著影响力的评价指标探讨   总被引：1，自引：1，他引：1  

王术  叶鹰 《大学图书馆学报》2014,32(5):12-18

把评价视向由针对学术主体转向针对学术客体,提出着眼于单篇论著影响力评价的影响矩指标。影响矩M被定义为单篇论著影响学者力A及其影响跨度D的乘积,M越大,影响越大。通过对测算样本集和校验样本集的数据分析,显示影响矩M与总被引C及h指数的相关系数都在0.6以上,表明影响矩可以作为测评单篇论著影响力的独立指标。  相似文献   

Coherent Resonant Tunneling through Double Metallic QuantumWell States     

B.S.Tao  C.H.Wan  P.Tang  J.F.Feng  H.X.Wei  X.Wang  S.Andrieu  H.X.Yang  M.Chshiev  X.Devaux  T.Hauet  F.Montaigne  S.Mangi  M.Heh  D.Lacour  X.F.Han  Y.Lu 《中国科学院院刊(英文版)》2019,(2)

<正>Due to its far-reaching scientific impact and broad applications, coherent resonant tunneling effect in magnetic tunnel junctions has aroused intensive interest from spintronic and semiconductor communities. Actually, resonant tunneling effect has been verified and utilized in semiconductor-based multiquantum wells, such as resonant tunneling diode and light-emitting diodes with multiple quantum wells and etc. However, coherent resonant tunneling effect through metallic multi-quantum wells has been rarely reported  相似文献   

Cultural Diplomacy and Internationalization of Higher Education: The Experience of Three Confucius Institutes in Canada     

Covina Y. W. KWAN 《Frontiers of Education in China》2014,9(1):110-126

This paper is based on a study of three Confucius Institutes in Canada. The research aims to explore the nature of operations at Confucius Institutes, ranging from the selection of partnering Chinese universities, to the program planning at each individual site. Specifically, it focuses on the perceived impacts of the Confucius Institute partnership on the Canadian hosting institutions. Data was collected through interviews with key administrative staff from three Canadian universities. The theoretical framework of constructivism from international relations theory and concepts drawn from the literature on the internationalization of higher education were used to analyze the findings. Key issues revealed from the data include the host’s perception of Confucius Institutes as China’s cultural diplomacy and soft power strategy, the progression of partnerships between Canada and China over time, and university autonomy.  相似文献   

Real-time dynamic modeling of hydrogen PEMFCs     

Y.H. Hung  C.W. Hong 《Journal of The Franklin Institute》2008,345(2):182-203

A control-oriented dynamic model of proton exchange membrane fuel cells (PEMFCs) has been developed in this paper. It aims to generate system dynamics with real-time performance for the micro-chip controller design. A unified bond graph approach was employed that integrates physical and chemical domains in the fuel cell operation, including fluid dynamics, heat transfer, and electrochemistry effects. In this paper, two major bond graphs, one for thermofluids, the other for the electrochemical system, were constructed. They are inter-connected to interpret the highly nonlinear transport and reaction system dynamics. The nonlinear simulation on a personal computer (PC) is about four times faster than the realistic operation. A step response test shows that the start-up time of an example PEMFC is about 5 s from ambient conditions. Further frequency-response test in the operation region shows that the bandwidth is near 2 rad/s.  相似文献   

Aligning work force management practices with competitive priorities and process technology: A conceptual examination     

Ravi Kathuria  Fariborz Y. Partovi 《The Journal of High Technology Management Research》2000,11(2)

Despite the accepted need for strategic alignment in the manufacturing strategy literature, there has been relatively little research aimed at simultaneously aligning decisions in the structural and infrastructural areas with the competitive priorities of an organization. This article attempts to bridge the gap by examining how work force management practices, an infrastructural decision, should be aligned with both the process technology of a manufacturing plant, a structural decision, and its competitive priorities. A conceptual model for linking competitive priorities, process technologies, and work force management practices is presented, and specific and testable propositions are developed for future empirical research. The proposed conceptual model is based on the premise that the process of matching work force management practices to competitive priorities involves identification of the key managerial tasks underlying various competitive priorities. These tasks, in turn, are matched with the process technology characteristics and work force management practices to seek a good fit, which is expected to improve manufacturing performance.  相似文献