排序方式： 共有122条查询结果，搜索用时 15 毫秒
101.
Kwon Oh Nam Han Chaereen Lee Changsuk Lee Kyungwon Kim Kyeongjun Jo Gyeongha Yoon Gangwon 《Educational Studies in Mathematics》2021,108(1-2):183-200
Educational Studies in Mathematics - Visual displays in the news media become critical during escalating events such as the COVID-19 pandemic, as they facilitate the communication of complex... 相似文献
102.
The incidence of cross-licensing: A theory and new evidence on the firm and contract level determinants 总被引：1，自引：0，他引：1
This paper examines the firm and contract level determinants of the incidence of cross-licensing among manufacturing firms. It develops a simple stochastic theory explaining such incidence, which implies that cross-licensing, compared with unilateral licensing, is more prevalent between large and symmetric firms under a reasonable set of assumptions. We find strong empirical support to these implications, based on a new dataset of more than 1100 licensing contracts by Japanese manufacturing firms. We also find that the incidence of cross-licensing is higher when the contract covers only patent than when it covers only know-how, consistent with the theory. The licensing probability between two firms depends primarily on the size of a potential licensor, which, according to the theory, is consistent with the fact that a licensor is larger than a licensee on the average. 相似文献
103.
This paper investigates the stability analysis of sampled-data systems in the looped-functional framework. A modified free-weighting matrix inequality with quadratic-type is proposed to reduce conservatism of the integral term. Based on new looped-functional, improved conditions are derived in terms of linear matrix inequalities (LMIs) by utilizing the proposed integral inequality. Numerical examples show the superiority of the proposed condition through comparisons with the most recent results. 相似文献
104.
Kyungbin Kwon Suhkyung Shin Thomas A. Brush Krista D. Glazewski Thomas Edelberg Su Jin Park 《Interactive Learning Environments》2018,26(6):839-855
This study examined the types of learning behaviors students demonstrated while performing inquiry tasks. It also explored the relationship between the learning behaviors and students’ domain knowledge. We observed fourteen students in five groups during a ninth-grade biology course. Three types of learning behaviors (inquiry, collaborative, and minimally productive behaviors) were identified and time on each type was measured. The results suggest that students demonstrated different patterns according to the types of learning behaviors. Correlation analysis revealed that learning outcomes had a strong positive correlation with the inquiry behaviors but a strong negative correlation with the minimally productive behaviors. The results suggest that attention should be paid to facilitate the more meaningful inquiry behaviors while reducing minimally productive behaviors. 相似文献
105.
As digital modelling programmes become increasingly prevalent in interior design education, there is concern that graduates are entering the workforce relying too much on strong graphic presentation skills while lacking the basic ability to speak about design. This study explores the gap between practitioners’ perceptions of importance regarding oral presentation competency and students’ perceptions of their oral presentation performances. Additionally, the study explores correlations between in‐class activities and students’ perceptions of their oral presentation competency. Mixed‐methods of investigation include a Delphi study with a panel of interior design practitioners and a survey questionnaire of both practitioners (n = 102) and currently active interior design students (n = 91) in the USA. An Importance‐Performance framework is employed for comparison. Results identify performance criteria for evaluating oral presentation competency and indicate variances between students’ perceptions of their performance and industry perceptions of importance. Furthermore, students’ in‐class activities including studio critiques and written peer assessments show significant correlation with student oral presentation performance indicating activities already frequently incorporated into a design curriculum may have a greater impact on improving performance than specific oral presentation instruction alone. 相似文献
106.
107.
Christopher GA Yoon S Kwon YH 《Sports biomechanics / International Society of Biomechanics in Sports》2008,7(2):288-295
The use of digital camcorders in biomechanical analyses can introduce errors due to inter-camera time offsets. The faster the motion being recorded the greater the error. A sequential synchronization method was developed in this study to achieve sub-field camera synchronization for multiple camcorders through numerical optimization. A recreational golfer performed ten drives while being recorded with four digital camcorders (60-Hz sampling rate). Video signals were sampled at 10,000 Hz to determine the actual inter-camera time offsets. The optimized inter-camera time offsets were computed based on three markers placed on the shaft, each separated by 200 mm. The inter-camera time offset error was computed as the difference between the optimized and actual inter-camera time offsets. The inter-camera time offset error reduced on average from 0.518 to 0.019 fields (1 field = 16.7 ms) or less due to sequential optimization. The optimized global reconstruction errors were less than 19% of the unadjusted values. It was concluded that the ability to synchronize multiple (two or more) cameras using a sequential sub-field optimization strategy promises to extend the use of relatively inexpensive digital camcorders to motions considered too fast for the low field rates of such cameras. The sequential approach presented provides a balance between computation time and reconstruction accuracy. 相似文献
108.
Gaston Mialaret Gilbert de Landsheere Dieter Mahr Marcel Postic A. Harry Passow Elaine Rivers Desmond J. Keegan Jindra Kulich Wolfgang Mitter Joseph I. Zajda John Eggleston Shoshannah Langerman A. W. Wood Joachim Herzer Peter Waterman Hans Scheuerl Andrew S. Kwon Betty Heyder Barbara Lloyd 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1981,27(3):347-378
109.
Communication patterns in computer mediated versus face-to-face group problem solving 总被引：3，自引：0，他引：3
David H. Jonassen Hyug Kwon II 《Educational technology research and development : ETR & D》2001,49(1):35-51
Research has shown that when group problem solving is computer mediated, communications become more task oriented with clearer
role expectations, while face-to-face communications are more cohesive and personal. None of this research has examined those
patterns of interactions in terms of the problem solving activities engaged. In this study, we compared the perceptions of
participants, the nature of the comments made, and the patterns of communication in face-to-face and computer-mediated groups
in terms of problem-solving activities while solving well-structured and ill-structured problems. The quantity of messages
in the computer conference was smaller but more task related than in the face-to-face conversations because participants reflected
more on ideas and perspectives in reaching their decisions. A cluster analysis of communication patterns showed that computer-mediated
group decisions more closely resembled the general problem-solving process of problem definition, orientation, and solution
development as group interaction progressed, while the face-to-face group interactions tended to follow a linear sequence
of interactions. Participants who solved problems through computer conferencing were more satisfied with the process and believed
that there was a greater quality in the problem-solving process. 相似文献
110.
Testing for factorial invariance of the Modified Leadership Scale for Sports: using a Japanese version 总被引：1，自引：1，他引：0
The objective of this study was to provide empirical evidence to support psychometric properties of a modified four-dimensional model of the Leadership Scale for Sports (LSS). The study tested invariance of all parameters (i.e., factor loadings, error variances, and factor variances–covariances) in the four-dimensional measurement model between two groups of student-athletes. For testing multi-group invariance of the proposed scale, 335 middle school and 320 high school student-athletes in Japan participated in this study. The modified version of the LSS consists of 35 items representing training instruction, democratic behaviour, positive feedback, and social support. A chi-square difference test was employed for model comparisons. The results supported configural, metric, scalar and factor variance–covariance invariance in the modified LSS across the two student-athlete groups. 相似文献