• 한국가정과교육학회지
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• 제10권1호
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• pp.137-151
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• 1998

The purpose of this study is (1)to develop the teaching plan based on Cooperative Learning approach and (2)to investigate the effect of students'Interest on Subject matter and Teaching method and Attitudes to others of the area of Foreign food in Home Economics class. Among those various types of Cooperative Learning's models, this study adopted 'Learning Together'developed by Johnsons. To investigate these purpose, subject matter were analyzed and reconstructed for Cooperative Learning. The tests were developed to evaluate the interest on the Subject matter and teaching methods, and the attitude to others of the students. 108 femail high school students were divided into two groups with 54 students-traditional learning condition, Cooperative Learning condition-and had a 5 session. The subject of the class was Foreign food including Western, Chinese, and Japanes food. Before and after the class, students were tested. The statistical methods used for the study methods used for the study were t-test. The research findings are as follows : When the students in the Cooperative Learning classes were compared before and after the test, (1)Interest on Subject matter were improved considerably(p〈.001) (2)Interest on Teaching methods were improved considerably(p〈.05) (3)Attitude to Others were improved considerably(p〈.001) Therefore when the teaching-learning model based on Cooperative Liarning was used in Home Economics class, their interest on the subject and teaching methods and attitude to others were improved.

• ETRI Journal
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• 제32권4호
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• pp.512-519
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• 2010

A cooperative model is presented to enable sharing of the spectrum with secondary users. Compared with the optimal model and competitive model, the cooperative model could reach the maximum total profit for secondary users with better fairness. The cooperative model is built based on the Nash equilibrium. Then a conceding factor is introduced so that the total spectrum required from secondary users will decrease. It also results in a decrease in cost which the primary user charges to the secondary users. The optimum solution, which is the maximum total profit for the secondary users, is called the collusion state. It is possible that secondary users may leave the collusion state to pursue the maximum of individual profit. The stability of the algorithm is discussed by introducing a vindictive factor to inhabit the motive of deviation. In practice, the number of secondary users may change. Adaptive methods have been used to deal with the changing number of secondary users. Both the total profit and fairness are considered in the spectrum allocating. The shared spectrum is 11.3893 with a total profit of 65.2378 in the competitive model. In the cooperative model, the shared spectrum is 8.5856 with the total profit of 73.4963. The numerical results reveal the effectiveness of the cooperative model.

• International Journal of Internet, Broadcasting and Communication
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• 제15권1호
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• pp.281-289
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• 2023

The purpose of this study was to objectively explore and discuss the effect of trainer's communication style on rehabilitation ability and rehabilitation satisfaction of elite athletes. we observed the relationship between rehabilitation trainers and injured athletes and found that communication between them plays an important role. In this study, we criticized that most of the studies related to rehabilitation were conducted from the point of view of natural science. The results of this study emphasized that rehabilitation-related research should broadly accept social science positions such as business administration. The main research findings are as follows. As a result of analyzing the relationship between trainer's communication style and rehabilitation ability, first, the trainer's cooperative and professional communication style affects emotional factors of injured players. Second, the trainer's cooperative and controlled communication style affects the cognitive factors of injured players. Third, the trainer's cooperative and professional communication style affects the behavioral factors of injured players. Fourth, the trainer's cooperative and professional communication style affects the rehabilitation satisfaction of injured players. Based on these results, this study was conducted to validate the necessity of discussing the trainer's communication style preference according to the individual background such as the injured player's gender, personality, and injury level, and the classification and composition of communication styles that match Korean culture and sentiment. As suggestions for follow-up research, active sharing of problems with adjacent disciplines such as sports sociology, sports education, and sports marketing, and parallel qualitative research centered on individual cases were suggested

• 한국지구물리탐사학회:학술대회논문집
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• 한국지구물리탐사학회 2009년도 학술대회 초록집
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• pp.128-128
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• 2009

• 한국정보통신학회논문지
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• 제16권1호
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• pp.167-175
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• 2012

본 논문은 컴퓨터과학 교육에서 협동학습과 개별학습이 학습자에게 어떠한 효과가 있는 지에 대해 연구하였다. 협동학습은 우리나라 IT 기업들에서는 프로젝트 방식의 업무 처리 비중이 높아지고 있기 때문에 컴퓨터 과학 분야의 학습자들에게 협동학습의 훈련은 매우 중요시되고 있다. 본 연구는 개별학습과 협동학습에 대해 학습자들이 어떠한 견해를 가지고 있는지를 연구하고 학습 유형 별 실험을 통해 어떠한 학습의 차이를 가져오는지 설문과 실험을 통해 분석하였다. 이 연구는 서울 소재의 한 대학교에 컴퓨터 관련학과 전공과목을 수강하는 학생들을 학습 방법에 기초해서 두 집단으로 나누어 실험하였고 그 결과를 비교 분석하여 효과 및 문제점을 논의한다.

• 한국초등과학교육학회지:초등과학교육
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• 제20권2호
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• pp.177-186
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• 2001

Recently, introduced open education, there are some models applied several cooperative teaming, but there is no case in applied Jigsaw Ⅱ. So this research is selected objects which are 147 students in the fifth grade in 1999' school year and 143 students in 2000's on Yongwon elementary school. It makes share a partial responsibility for planner, leader, investigator, helper, writer and reporter in the small groups, and apply the Jigsaw Ⅱ model. Qualitative and quantitative analyses show that they have effects of Jigsaw Ⅱ cooperative Learning on Student's knowledge, inquiry ability and attitudes on Elementary School Science Study. The final results are following. The significance of Knowledge has .02 in 1999 and .01 in 2000. Testification of Inquiry ability has 1.75 in 1999 and 2.25 in 2000. The significance of Attitudes has .03 in 1999 and .00 in 2000. Research that has emerged from the cooperative teaming has led us to better understandings of multi purposed roles, interactions, and communities that arise when students work together to team science. Each of students can also cooperative as co-builders, working as equal participants to create a product that is better than that while would have built by either individual alone. Upon asking their intention, cooperative loaming shows more participation.

• 한국보육지원학회지
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• 제20권1호
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• pp.55-71
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• 2024

Objective: This research aims to examine whether the perception of professional competence among childcare teachers impacts the performance of respecting young children's rights, and whether the teacher-parent cooperative relationship mediates this association. Methods: The participants in this research were 220 teachers in Daejeon who assessed the performance of respecting young children's right, the perception of professional competence, and teacher-parent cooperative relationships through an online self-report questionnaire. The data collected in this study were analyzed using the SPSS 25.0 program. Results: Firstly, the results of examining the impact of the perception of professional competence among childcare teachers and the teacher-parent cooperation relationship on childcare that respects the rights of young children showed that each variable has a statistically significant influence. Secondly, it was found that the perception of professional competence among childcare teachers directly impacts the performance of respecting young children's rights and, indirectly, through the mediating role of teacher-parent cooperative relationships. Conclusion/Implications: To ensure high-quality childcare for young children, it is essential to consider not only professional perception but also the cooperative relationship between teacher and parent.

• 한국경영과학회지
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• 제23권2호
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• pp.131-156
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• 1998

Cooperative query answering is a research effort to develop a fault-tolerant and intelligent database system using the semantic knowledge base constructed from the underlying database. Such knowledge base has two aspects of usage. One is supporting the cooperative query answering Process for providing both an exact answer and neighborhood information relevant to a query. The other is supporting ongoing maintenance of the knowledge base for accommodating the changes in the knowledge content and database usage purpose. Existing studies have mostly focused on the cooperative query answering process but paid little attention on the dynamic knowledge base maintenance. This paper proposes a multi-level knowledge representation framework called Knowledge Abstraction Hierarchy (KAH) that can not only support cooperative query answering but also permit dynamic knowledge maintenance. The KAH consists of two types of knowledge abstraction hierarchies. The value abstraction hierarchy is constructed by abstract values that are hierarchically derived from specific data values in the underlying database on the basis of generalization and specialization relationships. The domain abstraction hierarchy is built on the various domains of the data values and incorporates the classification relationship between super-domains and sub-domains. On the basis of the KAH, a knowledge abstraction database is constructed on the relational data model and accommodates diverse knowledge maintenance needs and flexibly facilitates cooperative query answering. In terms of the knowledge maintenance, database operations are discussed for the cases where either the internal contents for a given KAH change or the structures of the KAH itself change. In terms of cooperative query answering, database operations are discussed for both the generalization and specialization Processes, and the conceptual query handling. A prototype system has been implemented at KAIST that demonstrates the usefulness of KAH in ordinary database application systems.

• 제어로봇시스템학회논문지
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• 제6권3호
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• pp.298-308
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• 2000

In this paper a new two-arm cooperative assembly(or insertion) algorithm is proposed. As a force-guided control method for the cooperative assembly the adaptive accommodation controller is adopted since it does not require any complicated contact state analysis nor depends of the geometrical complexity of the assembly parts. Also the RMRC(resolved motion rate control) method using a relative jacobian is used to solve inverse kinematics for two manipulators. By using the relative jacobian the two cooperative redundant manipulators can be formed as a new single redundant manipulator. Two arms can perform a variety of insertion tasks by using a relative motion between their end effectors. A force/torque sensing model using an approximated penetration depth calculation a, is developed and used to compute a contact force/torque in the graphic assembly simulation . By using the adaptive accommodation controller and the force/torque sensing model both planar and a spatial cooperative assembly tasks have been successfully executed in the graphic simulation. Finally through a cooperative assembly task experiment using a humanoid robot CENTAUR which inserts a spatially bent pin into a hole its feasibility and applicability of the proposed algorithm verified.

• Journal of Information Processing Systems
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• 제12권2호
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• pp.295-309
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• 2016

Spectrum sensing is an essential function that enables cognitive radio technology to explore spectral holes and resourcefully access them without any harmful interference to the licenses user. Spectrum sensing done by a single node is highly affected by fading and shadowing. Thus, to overcome this, cooperative spectrum sensing was introduced. Currently, the advancements in multiple antennas have given a new dimension to cognitive radio research. In this paper, we propose a multiple energy detector for cooperative spectrum sensing schemes based on the evidence theory. Also, we propose a reporting mechanism for multiple energy detectors. With our proposed system, we show that a multiple energy detector using a cooperative spectrum sensing scheme based on evidence theory increases the reliability of the system, which ultimately increases the spectrum sensing and reduces the reporting time. Also in simulation results, we show the probability of error for the proposed system. Our simulation results show that our proposed system outperforms the conventional energy detector system.