• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 하계학술대회 논문집 A
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• pp.660-662
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• 2004

Cooling demand in Korea has increased constantly. Furthermore, an evaluation and savings of cooling demand has impacted on summer DSM and investment in Korea. Absorbed cooling system uses gas. It could achieve reductions in summer peak load and increase gas demand simultaneously. However its efficiency rate is lower than electric system. Gas cooling system uses separate meter. Therefore we could analyze monthly cooling demand and derive annual uses pattern. This paper analyzes demand pattern of gas cooling and its effects on electricity savings. Also this paper presents the course of policy in electricity sector on spreading of gas cooling measures.

• International Journal of Reliability and Applications
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• 제5권2호
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• pp.75-80
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• 2004

Relationships between inventory policy and operational availability of military equipment maintained under a logistics support system are analyzed. A continuous review inventory model with a stochastic demand typically used in a military logistics support is considered and some numerical studies are provided.

• 대한가정학회지
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• 제40권11호
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• pp.107-118
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• 2002

Many women experience the conflicting demands of work and family life according to the increase of employed women. Their demand for balance of two spheres makes the companies have family friendly policy. Family friendly policy is win-win policy which gives benefits to the employers and the employees by helping the employees to balance of their lives. But this policy has been recognized as the one for women and which only companies have to carry out. This study aims to suggest and extend the applicable field of the family friendly policy, and press that the whole society have to be family friendly. So, this study examined the necessity of family friendly policy in the aspects of company and society. And it showed how the employers, policy makers, general public society and communities support the family by carrying out and applying the policy in USA.

• 수산경영론집
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• 제44권3호
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• pp.47-60
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• 2013

A study on the seamen's demand - supply has been focused on early 1990s, and never studied yet since 2007. Because previous studies related to the seamen are very different in conditions the environments around the fishery recently. It is serious problem that the number of domestic semen are decreasing continually. To depend on foreign seamen because of lacking of domestic seamen should be linked closely with the fishing industry environment in our country. Therefore, this study is limited to domestic seamen. Lacking recent domestic seamen, it is the most likely to rise imbalance between demand - supply in the future. Through medium and long term its analysis based on data, we are willing to discover various political subjects for seamen's welfare, the training of manpower, education, etc. To solve these issues, it can be made institutional changes as follows ; First, it is necessary policy-making related the deteriorating employment situation based on its analysis of medium and long term for seamen. Second, it is necessary to overcome a dual system for its management for seamen. Third, it is necessary to improve problems of statistics data for fishery and build a statistical system for seamen. Also, it will be improved a insurance system under 5 ton and strengthen the function for Korean seamen welfare and employment center and must be urgently countermeasures for the minimal unemployment rate through a content development and management of home page. Finally, it will be supplied reliably seamen to improve a practice system for apprentices according to the international regulations(STCW-F) for fishery students.

• International Journal of Internet, Broadcasting and Communication
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• 제12권1호
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• pp.95-103
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• 2020

In the study, we show the six metropolitan cities, Incheon Metropolitan City had the highest annual average rate(3.2%) of the death toll, from 2011 to 2018, and the overall annual average rise rate was 2.6%. Also, the annual average rise rate of the number of cremators using E-Haneul funeral information system, Gwangju Metropolitan City had the highest rate(7.6%) and the overall annual average rise rate was 5.6%. The annual average rise rate of the cremation rate, Gwangju Metropolitan City had the highest rate(2.8%) and the overall annual average rise rate was 1.9%. Focusing on the actual state shown in the results of this study above, the policy measures for improving the efficiency of supply & demand policy of funeral facilities in six metropolitan cities in the whole nation could be suggested as follows. First, expanding the supply of cremation facilitiesin consideration of the installation period of cremation facilities. Second, given the increase in the number of cremators using E-Haneul Funeral Information System, it is necessary to expand the infrastructure for meeting the demand of using funeral facilities, such as enshrinement facilities of ash and natural burial sites. Third, in such metropolitan cities, it is difficult to resolve a conflict of location with local residents who recognize cremation facilities as unpleasant facilities. Therefore, it is necessary to devise and implement a plan for improving local residents awareness of cremation facilities and resolving the conflict of location in diversified ways. Fourth, it is predicated that Busan and Daegu Metropolitan City will face a lack of supply of cremation facilities in a short time due to the increased demand for them. Therefore, in order to meet the demand for cremation, it is necessary to construct more cremation furnaces in current cremation facilities or to jointly use and expand cremation facilities with their neighboring local government.

• 한국건설관리학회논문집
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• 제10권2호
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• pp.46-54
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• 2009

우리나라는 1990년대에 건설발주 물량의 증가로 인한 건설기술자가 매우 부족한 실정이었다. 따라서 정부는 이러한 문제점을 해결하기 위하여 1995년에 인정기술자제도를 도입하게 되었다. 그러나, 2000년 이후 건설기술자의 부족 문제는 해결되었으나, 오히려 건설기술자의 공급과잉으로 인한 새로운 문제가 발생되었다. 따라서, 정부는 2007년도에 기존 인정기술자제도를 폐지하고, 건설기술자 제도는 산업기사, 기사, 기술사 등의 기술자격을 가진 자만 건설활동을 할 수 있는 제도로 변화되었다. 이러한 측면에서 본 연구는 정책변화에 따른 가장 적합한 건설기술자의 수요와 공급예측 모델을 개발하여 2008년부터 2017년까지 수요공급예측을 하는 것이 중요한 사항으로 대두되었다. 따라서, 본 연구는 GDP와 건설시장분석을 기반으로 건설기술자의 수요예측과 공급예측모델을 제안하고, 중장기 수급예측을 전망하였다. 이러한 연구결과는 정책수립자가 건설기술자의 수요와 공급의 수립시 기초자료로 활용할 수 있을 것이다.

• 디지털융복합연구
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• 제11권11호
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• pp.767-774
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• 2013

전기자동차 보급이 확대됨과 동시에 충전이 특정 시간대에 몰리거나 전력수요가 높은 시간대에 늘어나면 전력수급 균형이 불안해질 수 있다. 따라서 전기자동차 충전으로 인한 전력수요가 증가함과 동시에, 전기자동차의 전력수요를 분산시키고, 전기자동차 배터리의 여분의 전기를 활용할 수 있는 스마트그리드 구축이 중요해진다. 아직 국내에서 스마트그리드가 전기자동차의 전력망 영향 관리에 어느 정도 영향을 미치는지에 대해서는 정량적 연구가 미흡한 실정이다. 본 연구는 스마트그리드를 통한 전기자동차의 전력망 영향 관리 효과를 정량적으로 분석하고 정책적 시사점을 제시하였다. 결과적으로 스마트그리드는 전기자동차의 전력망 영향을 효과적으로 관리할 수 있었다. 전력시장 구조와 규제 프레임워크는 스마트그리드 기술의 실증과 상용화 촉진을 뒷받침할 수 있어야 할 것이다.

• Journal of Korea Trade
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• 제24권4호
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• pp.1-17
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• 2020

Purpose - Since China has been South Korea's biggest export destination, uncertainty shocks originating from it would influence South Korea's exports. This paper evaluates the effects of China's economic policy uncertainty on Korea's exports to explore the transmission channels. Design/methodology - Incorporating endogeneities and nonlinearities, this study employs a quarterly time-varying parameters vector autoregressive model to investigate the relationships between China's economic policy uncertainty and Korea's exports, where the overparameterization due to time-varying specifications is overcome by a novel stochastic model specification search framework. According to previous theoretical studies, this paper assesses two channels, demand shock channel and exchange rate channel, through which foreign uncertainty affects Korea's exports. This paper identifies the primary drivers of Korea's aggregate exports and analyzes the rationales for the time-variant impacts of China's economic policy uncertainty on Korea's exports to China. Findings - Our empirical results reveal that Korea's aggregate exports are less responsive to China's economic policy uncertainty shocks and significantly move together with global demand. In contrast, its bilateral exports to China are highly responsive in a negative and time-variant way. Moreover, Chinese investment is an important channel through which China's economic policy uncertainty affects Korea's exports to China after 2010. Further, the time-variant effects of China's economic policy uncertainty on Korea's exports to China are related to changes in China's foreign trade policies, global economic conditions, and China's degree of economic freedom. Originality/value - Few previous studies touch the effects of external uncertainty shocks on South Korea's exports. This paper attempts to fill this gap and explicitly investigate the impacts of China's economic policy uncertainty on Korea's exports from a time-varying perspective. As Korea is an export-oriented economy, this study provides insights for the Korean government to understand the transmissions of external uncertainty better.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2009년도 춘계 종합학술대회 논문집
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• pp.884-888
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• 2009

Vehicular Adhoc Networks(VANET)은 차량과 노변장치 또는 차량간 통신 기술로 MANET의 보다 구체적인 활용 분야이면서 MANET의 Quality of Service(QoS) 기술이 Video on Demand(VoD), Video streaming, Voice over IP(VoIP) 등 멀티미디어 데이터의 품질을 위하여 연구되고 있다면, VANET에서는 사고나 기타 예상될 수 있는 응급한 상황에 대하여, 즉시 주변 차량에 전달하여 사고를 미연에 방지하는 등의 부분에 초점이 맞추어져있다. 본 논문에서는 Link State Routing(LSR)을 이용하여 실제 네트워크를 구성하고, Common Open Policy Service(COPS)를 이용한 QoS Provisioning 모델을 구현하였다. 그리고 VANET의 특성에 맞는 보다 효율적인 k-hop Cluster, inter-domain policy negotiation에 대하여 제안한다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2004년도 학술발표회
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• pp.354-359
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• 2004

우리는 지금 수자원관리의 새로운 패러다임을 맞이하고 있다. 이는 수자원과 관련된 환경의 변화 때문일 것이다. 소비자들은 자신들이 원하는 때에 원하는 만큼 물을 확보하고 싶어 하지만 절대적인 수요량의 증가는 이 같은 요구를 충족하지 못하고 있다. 물과 관련된 사회적인 분쟁이 증가하고 있고 결과적으로 수자원정책과 이에 대한 연구가 수자원관리의 가장 중요한 요소로 부각되고 있는 것이다. 우리나라도 최근 수자원정책에 대한 몇 몇 연구가 있었으나 다양성이 강조되어야 하는 정책연구가 지나치게 일정부문에 국한되어 왔다. 본 연구는 우리나라 수자원정책 연구에 대한 평가를 토대로 향후 방향에 대한 제언을 하였다.