• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.1191-1194
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• 2006

디지털 기술의 발전으로 다양한 컨버전스 제품들이 출시되고 있으며 컨텐츠의 디지털화가 가속화됨에 따라 대용량의 멀티미디어 데이터를 편리하게 분산 저장 관리 및 공유할 수 있는 기술 개발이 요구되고 있다. 본 논문에서는 이러한 요구 사항을 반영한UPnP를 이용한 유비쿼터스 가상저장공간에 대해 설계 및 구현한다. UPnP를 이용한 유비쿼터스 가상저장공간은 유비쿼터스 기술을 기반으로 정보가전기기 내에 존재하는 저장장치를 UPnP를 이용하여 하나의 큰 가상저장공간을 구축하고, 가상저장공간 내에 멀티미디어 파일을 힌트정보와 함께 저장함으로써 대용량의 멀티미디어 파일을 보다 지능적으로 탐색할 수 있는 기법을 제공한다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.9A
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• pp.796-800
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• 2011

An energy-efficient multi-hop scheme based on cooperative MIMO (multiple-input multiple-output) technique is proposed for wireless sensor networks, taking into consideration the modulation constellation size, transmission distance, and extra training overhead requirement. The scheme saves energy by selecting the hop length. In order to evaluate the performance of the proposed scheme, a detailed analysis of the energy and delay efficiencies in the proposed scheme compared with the equidistance scheme is presented. Results from numerical experiments indicate that by use of the proposed scheme significant savings in terms of total energy cousumption can be achieved.

• Journal of Family Resource Management and Policy Review
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• v.16 no.2
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• pp.187-210
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• 2012

Pumasi and Cooperative Child Care Sharing have had positive results among participants and show possibilities of spreading out to the community in general. However, performance was not proved where it is clarified, and the experience of 23 local Healthy Family Support Centers have that ran the demonstration project were unable to be collected. It is the point of time when the initial backing up is important but the centers do not have the systematic support. Therefore, this research presents an effective management plan through qualitative research involving Pumasi participants and person in charge. The operation strategies by the stage of the project were as follows: First, in the beginning stage, the person in charge establishes the target and vision of the project. Second, when comprising the Pumasi team, it was necessary to consider their characteristics according to the team organization subjects. Third, it is necessary to extend the turn-off time and provide many programs so that the various populations can participate. Fourth, in the advertising step, word of mouth and individual contact needs to be utilized. Fifth, in a medium or small city or an urban-rural complex area, the person in charge should support the participants' Pumasi activities. Sixth, various programs such as a passive and active parent education program and Pumasi education program for the leader needs to be provided for the activation of Pumasi activities. Lastly, a cooperative child care sharing location needs to be constructed by the duality system of the base space and outer space. In this location, the inside play space for the children is essential.

• Architectural research
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• v.13 no.3
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• pp.31-40
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• 2011

Profit-keeping behaviors naturally occur in the market to satisfy consumers, and the logic behind it lies in the economies of scale. On the flip side, some commodities transacted in the market are not available or can not be easily acquired unless the demand is high enough. Under this proposition, some consumers rise and find their own solution to meet the services at a reasonable cost or at an adequate level. The commonly adopted way is to establish a cooperative, and it stirs purchasing power by pooling resources and further bargains price and service quality. As a consumer cooperative, housing cooperatives notably found in rural towns enable the elderly to continue independent living. This study is to take a closer look at residential life of the rural elderly in housing cooperatives. Utilizing in-depth focus group interviews with 40 residents in four housing cooperatives, this qualitative research draws main factors affecting the decision to move in, residential assessment, and strengths and weakness of living in a housing cooperative. The primary factor influencing the moving decision is to continue to independent living in a familiar community, and the bottom line is planning ahead. Frailty and bereavement are found to be the leading occasions for them to move. The participants are satisfied with the independent living arrangement, and particularly, cited such features as safety and security, elderly-friendly design, common spaces, freedom, social activities and efficient living. Also, it is stated that some cooperative natures such as control over the property and giving a voice on management render positive impacts on the satisfaction with communal living. In spite of all the benefits and strengths, participants face with a public notion that an independent living arrangement like a housing cooperative has never done before in rural towns, so that most people recognize it as part of dependent living arrangements like nursing home.

• Journal of the Korean Society of Earth Science Education
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• v.8 no.2
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• pp.218-226
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• 2015

This study is to find out that the effect of science class applied Jigsaw cooperative learning to study achievement and Creative personality. The class section of this study is 5th grade 1 semester of science 2 chapters, 'the solar system and the stars' This study has been aimed at 2 class 40 students of 5th grade in D metropolitan city G elementary school in 2015, one class 20 students are the research group to apply science class using a Jigsaw cooperative learning techniques, another class 20 students were comparison groups to apply general science classes. Research result and conclusion obtained through the discussion are as follows. First, science class using Jigsaw cooperative learning technique was not effective. Even though the science class with jigsaw cooperation education could not achieve the beneficial academic achievement, which is the cognition factor, when it comes to precedent study, the definition factors such as teamwork, consideration and readership show great effects. Second, science class using Jigsaw cooperative learning technique was effective in cultivating creative personality. This can be interpreted that the science class applied the jigsaw cooperation study help the creativity development. Third, after the science class applied jigsaw cooperation study, the students' perceptions also have changed in positive way. They were tend to care each other and cooperate with others. That means the class is good way to cultivate collective intelligence, which is a virtue of community.

• Journal of Society of Preventive Korean Medicine
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• v.15 no.1
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• pp.131-143
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• 2011

Objective : The purpose of this study was survey about the recognition and demand on cooperative system between western and oriental medicine of stroke patients in National Rehabilitation Center. Methods : The participants were 205 stroke patients in the National Rehabilitation Center and investigated the recognition and demand on cooperative system between western and oriental medicine. Results : As to general characteristics of the group, 56.9% were male, 30.7% were in the 60~69 age, 24.3% of patients had an average income per month 1.0~2.0 million. In regard to disease status of patients, 53.8% were cerebral infarction, 35.8% were below 6 month in disease duration, 73.7% were none recurrence, 52.8% were hypertension as related disease, 74.5% were motor paralysis sequela. 83.2% were positive response in using oriental medicine department of National Rehabilitation Center. The most wanted therapy was acupuncture. Most of respondents expected that co-operative treatments were to be improving the cure effect for patients. And they wanted cooperative system combined evenly between western and oriental medicine, so the western doctors and the oriental doctors suggest the plan giving lots of medial benefits for patients. Conclusion : This survey showed the recognition and demand on cooperative system between western and oriental medicine of patients in National Rehabilitation Center. It is possible to realize patient's centered treatment under the stable and efficient cooperation of western and oriental medicine.

• The Mathematical Education
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• v.48 no.3
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• pp.329-352
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• 2009

The purpose of this study was to investigate the effects of small group cooperative communicative activities on the strategies for estimating measurement. To do this, two research questions were set as follow: First, are there any differences between strategies employed by students in the experimental group and the control group before and after the estimating measurement activities? Second, are there any differences between strategies employed by students in different ability levels(upper, middle, lower) of pre-estimating measurement test in the experimental group? The research results were drawn from the investigation as below: First, the strategical change of before and after the estimating measurement tasks in the experimental group was quite noticeable. Unlike the small strategical change in the control group, small group cooperative communicative learning resulted in a decrease of simple memorization and guessing strategies and an increase of refined strategies such as the standard strategy, clustering, unit load and so on. Second, mathematical communicative activities in a small group cooperative learning showed that the students in the upper level of pre-estimating measurement test used more refined strategies and the students in the lower level used simple memorization and guessing strategy more frequently. And through interaction in small group, students could have chances to recognize error of strategies and to modify and learn strategies. In conclusion, small group cooperative activities allowed students to have chances to communicate mathematically and it is a efficient way of helping students learn estimating measurement strategies.

• The Journal of Korean Medicine
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• v.20 no.2
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• pp.3-11
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• 1999

The Korean system of health and medical care has been organized with both Oriental and Western medical sciences. To get complete clinical treatment results is not possible with only one-sided medical care, therefore we need to formulate an interdisciplinary plan for better health care, that is to say our ultimate purpose is the cooperative medical care for the promotion of social welfare and health. Hereupon, I made a searching inquiry into the present condition of cooperative medical care and its problems and also took a consideration into the medical state of other countries like China. Japan and North Korea where the Oriental medical care is used. The results of this investigation are as follows. There are some problems in both Oriental and Western(general) medical care, such as a lack of mutual confidence, a severance of interdisciplinary study, a shortage of professional human resources and so on. There also used to be problems of the system such as, the responsibility of medical care, the double charge for medical treatment, the governmental passive participation and policy, the private-oriented study system and so on. The solutions of these problems are that the mutual understanding and coexistence between both Oriental and Western medical sciences should be preceded and the interdisciplinary study, identified terminology and cooperative medical specialists would be necessary. Furthermore, the government has to seek some policies and legislation for the cooperative medical system and needs to support the public research institutes and centers of the cooperative medical care. After all, we have to train the cooperative medical specialists for the mutual aid of both Oriental and Western medical sciences and the government also has to support it with some policies and legislation for the better medical care system.

• Journal of the Korean Society of School Health
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• v.23 no.2
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• pp.228-236
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• 2010

Purpose: This research was conducted to compare sex-related knowledge and attitude of 6th-grade elementary school students who participated in the field based learning and those with cooperative learning methods. Methods: The data were collected from June to July in 2009. The subjects of the study were recruited from the classes of the 6th grade conveniently assigned from the D elementary school located in Daejeon metro city. Total of 60 students were assigned either to the field based learning group, and the other 60 students to the cooperative learning group. The field based learning group received sex education at the Daejean Youth Sexuality Culture Center for 3 hours. And the cooperative learning group received sex education by cooperative learning method at the classroom for 40 minutes per session, once a week, for 3 weeks. The sex-related knowledge and attitude scales developed by Lee (2004) were used. The data were analyzed by $x^2$-test, Fisher's exact test, and t-test using the SPSS/WIN V. 12.0 program. Results: The results were as follows. 1. Sex-related knowledge was not significantly different between the cooperative learning and the field based learning group. 2. Sex-related attitude was not significantly different between the cooperative learning and the field based learning group. Conclusion: In this study, sex-related knowledge and sex-related attitude of the cooperative learning group and the field based learning group were different from the lecture method groups in the earlier study. It is worthy of notice that the cooperative learning group and the field based learning group took relatively less time to improve their knowlede and attitude than the earlier lecture based group did.

• Journal of Korea Technology Innovation Society
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• v.15 no.3
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• pp.722-743
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• 2012

Confronted with increasing global competition and rising research and development risks, the global open innovation has receiving increased attention. This study empirically investigates whether or not international cooperative R&D is effective by evaluating the quality indicators with the patents with international co-applications. The number of patents with international co-applications has dramatically increased in recent years. According to the results, the outcome from international cooperative R&D is prominent in term of all the evaluation criteria such as the number of citation, patent families, claims, and et cetera, compared with that from domestic cooperative R&D. Based on the patent quality, the information technology sector holds the top spot and high-tech sectors such as bio and automobile industries show the better quality performances. By identifying high betweeneess centrality in the network analysis of international cooperative R&D, the US is indicated as the most central country in such cooperative activity, and then Germany, the UK, Canada, and France come after.