• 수산경영론집
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• 제32권2호
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• pp.73-89
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• 2001

The market conditions of sea mustard is changing by overproduction, decreasing price, Import of blanched and salted sea mustard from China into Korea domestic market and increasing market share of sea mustard of China in Japan. In addition, the price support program in sea mustard aquaculture must be modified due to the restriction of domestic support by international organization such as WTO. There are two ways to solve those problems. First is that finding a way to solve the overproduction of sea mustard. One of possible ways is the production adjustment by Marketing Order. Second is that finding an alternative way to replace price support program. The possible way is Direct Payment instead of purchase stockpile system. To introduce marketing Order, outlook center, organization of self-management, production adjustment through output control measure, improvement of market structure, and education/publicity arc necessary. Also, to implement marketing order, setting a model business by government is required. There are two steps for implementation of marketing order. First step is to construct Order Committee including organization of producer, people related marketing. However, this committee must run by government for certain short-term. Second step is to improve quality of product and acceleration of demand. At visual point that enforcement of the first step is completed, government has process that government transfers Order Committees self-correcting. It is desirable that government only conduct the support acts such as quality improvement and acceleration of demand. Also, at early stage it is necessary to have aid system for marketing order For example, we can expect that income increase by production adjustment in long run. However, in short run the income of producer may decrease so, it is required to compensate his economic lose. For compensation, The useful means that can be utilized is direct payment. Direct payment is not continued policy. Also, when production adjustment policy such as Marketing Order has effective results, Direct Payment as an assistant measure must be reduced or abolished. Therefore, when production adjustment acts as an effective tool to control overproduction, Direct Payment system.

• Journal of international Conference on Electrical Machines and Systems
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• 제3권2호
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• pp.215-221
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• 2014

To satisfy the high voltage direct current (HVDC) grid connection demand for wind power generation system, a novel topology and control strategy of HVDC grid connection for open-winding permanent magnet synchronous generator (PMSG) based wind power generation system is proposed, in which two generator-side converter and two isolated DC/DC converters are used to transmit the wind energy captured by open winding PMSG to HVDC grid. By deducing the mathematic model of open winding PMSG, the vector control technique, position sensorless operation, and space vector modulation strategy is applied to implement the stable generation operation of PMSG. Finally, the simulation model based on MATLAB is built to validate the availability of the proposed control strategy.

• 임상간호연구
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• 제22권1호
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• pp.88-98
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• 2016

Purpose: The purpose of this study was to construct and test a structural equation model of burnout of the critical care nurses based on the job demand-resource model. Methods: A structured questionnaire was completed by 414 critical care nurses. The relationships between concepts of job stress, empathic ability, resilience, job satisfaction, compassion fatigue and burnout were analyzed. Using SPSS WIN 22.0 and AMOS 22.0 programs, the direct and indirect effects of factors affecting burnout among critical care nurses were calculated and modelled. Results: The modified model was yielded as follows: Chi-square= 216.59, GFI= .93, AGFI= .89, NFI= .90, CFI= .93, RMSEA= .07, SRMR= .06 and showed good fit indices. Job satisfaction and compassion fatigue had mediation effects between other three exogenous variables and burnout. Conclusion: The major findings of this study indicate that it is important to develop a support program for critical care nurse in order to improve their job satisfaction and ameliorate their compassion fatigue.

• Asia Marketing Journal
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• 제18권4호
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• pp.125-138
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• 2017

The goal of the study is to understand how consumers' constraint as opposed to utility structure gives rise to final decision when consumers purchase more than one variant of product at a time, i.e., horizontal variety seeking or multiple-discreteness. Purchase and consumption decision not only produces utility but also involves some sort of cognitive pressure. Past consumption or last purchase is likely to be linked to this burden we face such as concern for obesity, risk of harm, and guilt for mischief. In this research, the existence and the role of dynamic constraint are investigated through a microeconomic utility model with multiple dynamic constraint. The model is applied to the salty snacks data collected from field study where burden for spiciness serves as a constraint. The results are compared to the conventional multiple discreteness choice models of static constraints, and policy implications on price discounts is explored. The major findings are that first, one would underestimate the level of consumer preference for product offerings when ignoring the carry-over of the concern from the past consumption, and second, the impact of price promotion on demand would be properly evaluated when the model allows for the role of constraint as both multiple and dynamic. The current study is different from the existing studies in two ways. First, it captures the effect of 'mental constraint' on demand in formal economic model. Second, unlike the state dependence well documented in the literature, the study proposes the notion of state dependence in different way, via constraint rather than utility.

• 한국산학기술학회논문지
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• 제17권10호
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• pp.39-45
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• 2016

본 연구는 친환경 농업부문 직불금의 지원이 농업부문 거시경제 지표에 어떠한 영향을 미쳤는지를 검토하기 위해 시행되었다. 이를 위해 농업부문을 일반농업과 친환경농업 부분으로 구분한 AGE(applied general equilibrium)모형을 이용하였다. 분석은 먼저 직불금 지원의 경제적 영향을 측정하기 위해 직불금 지급 이전의 상황을 기준으로 직불금이 지급된 몇 가지 상황을 시나리오로 설정하여 분석하였다. 즉 기준전망(baseline)은 직불금 지급 이전 상황, 시나리오 1은 직불금이 실제 수준으로 지급된 상황, 시나리오 2는 실제 직불금 보다 5% 추가 지원한 상황, 시나리오 3는 실제 직불금 보다 10% 추가 지원한 상황, 시나리오 4는 실제 수준 보다 15% 추가 지원한 상황, 시나리오 5는 실제 수준 보다 20% 추가 지원한 상황으로 설정하였다. 기준전망 및 시나리오에 대한 시뮬레이션 분석결과, 친환경 농업부문에 직불금의 투입으로 친환경 농업부문에 대한 고정자본 형성, 생산량, 노동생산성이 증대되었고, 이에 따른 노동력 대체효과로 친환경 농업부문 취업자는 다소 감소한 것으로 나타났다. 또한 친환경 농산물 가격은 직불금 투입 전후 큰 차이를 보이지 않은 것으로 분석되었는데 이는 공급 및 수요에 대한 가격탄력성이 비탄력적이고, 분석기간 동안 소비자들의 소득에 큰 변화가 없었기 때문에 나타난 현상으로 파악된다. 그러나 보다 더 정교한 분석을 위해 친환경 직불금의 투입에 따른 고정자본의 형성과 노동력의 대체 수준, 친환경 농업 및 농산물 관련 통계 자료의 보완에 따른 모형의 개선 등에 대해 향후 추가적인 연구가 이루어질 필요가 있다.

• 환경정책연구
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• 제7권1호
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• pp.101-118
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• 2008

본 논문은 환경산업에 의한 노동수요 창출에 대해 알아보았다. 이를 위해 정부에서 발표하는 통계, 특히 환경부의 환경산업조사통계를 기초로 하여 오차항에 대한 다양한 가정을 통해 부분균형적인 단일 노동수요함수를 추정하여 보았다. 추정결과 환경산업의 환경부문 매출액 증가를 통한 노동수요 탄력도는 최소 0.193에서 최대 0.256에 해당하는 것으로 계산되어 각 산업별 환경기업들의 10억원의 매출증가를 통해 7.7에서 10.3명의 노동수요가 증가하는 것으로 계측되었다. 이는 특히 정부의 정책지원이 환경산업의 총매출액 1%에 해당하는 금액의 매출증가를 유도한다면 연간 $1,600{\sim}2,300$명의 직접 고용을 증대시키는 것으로 계측되었다. 그러나 안타깝게도 환경산업 노동력의 많은 부문이 단순노무직으로 구성되어 있어 향후 환경산업의 발전을 극대화하고 우리나라 경제성장의 중추 산업으로 육성하기 위해서는 정부의 기술개발과 수요증대에 대한 지속적인 지원이 필요하다 하겠다. 결국 이러한 정책적인 지원이 우리나라의 지속가능발전의 가능성을 극대화할 것이다.

• Asia Pacific Journal of Business Review
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• 제5권2호
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• pp.19-44
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• 2021

Sub Saharan Africa (SSA) is receiving increased investments in the energy sector under the belt and road initiative (BRI) project since its inception in 2013. SSA has a worse energy efficiency ratio coupled with deficient electricity access, through analysis showed varied impacts on the SSA countries due to the BRI initiative. This study dilves into the influencing factors for Energy Efficiency (EE) in 38 SSA countries, applying the probit and logit approach for 2000-2018. The Multiple-regression model shows significant results of some variables such as foreign direct investment, gross domestic product, and port infrastructure quality being significant on EE under BRI initiative countries. However, the logit and probit models produce similar results and the marginal effect for the entire variable, except energy imports that do not likely impact EE. Furthermore, the interaction of quality of port infrastructure and foreign direct investment variables produces significant results, highlighting the increased investments SSA receives under the BRI initiative in the energy and transport sectors. The model Percent correctly predicted (PCP) value was about 84%, indicating it correctly classified the variables and about 16% not classified. The study recommends EE performance standards should be incorporated on energy projects in SSA to ensure that these projects are energy efficient and decouple SSA's energy demand from economic growth. The research proffers suggestions for policy regarding the BRI initiative in SSA and the implications on sustainable energy and building a community with a shared future.

• 융합정보논문지
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• 제8권5호
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• pp.229-236
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• 2018

과거 기술사업화는 학계 및 연구계 중심으로 기술이전 또는 창업지원 등 좁은 의미로 해석되어 시행되었으며, 기술 사업화 단계에서 사업의 경험부족, 기술개발 실패, 판로 미확보 등이 실패원인으로 지적되어 왔다. 본 논문에서는 학계 연구소 보유기술의 직접사업화 지원 사업이 공공 자금 및 대기업 영업력을 기반으로, 사업화 기술과 자본, 판로, 정부정책 및 지원 등이 결합한 신개념의 기술사업화 모델을 제시하고, 보유기술을 직접사업화하기 위한 애로요인을 도출하였으며, 조사 및 분석을 통해 기술사업화 수행 주체의 요구요인과 보유역량과의 사이에 차이가 있고, 요구요인과 애로요인간에 상관관계가 있다는 유의미한 결론에 도달하였다. 이 결론을 기반으로, 대학 및 연구기관 보유기술에 대한 사업화의 효율성을 높이기 위한 일환으로 지원정책 개선 방안을 도출하였다.

• 대한전기학회논문지:전력기술부문A
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• 제55권10호
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• pp.399-409
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• 2006

This paper presents a novel method for satisfying the thermal comfort of indoor environment and reducing the summer peak demand power by minimizing the power consumption for an Air-conditioner within a space. Korea Electric Power Corporation (KEPCO) use the fixed duty cycle control method regardless of the indoor thermal environment. However, this method has disadvantages that energy saving depends on the set-point value of the Air-Conditioner and direct load control (DLC) has no net effects on Air-conditioners if the appliance has a lower operating cycle than the fixed duty cycle. In this paper, the variable duty cycle control method is proposed in order to compensate the weakness of conventional fixed duty cycle control method and improve the satisfaction of residents and the reduction of peak demand. The proposed method estimates the predict mean vote (PMV) at the next step with predicted temperature and humidity using the back propagation neural network model. It is possible to reduce the energy consumption by maintaining the Air-conditioner's OFF state when the PMV lies in the thermal comfort range. To verify the effectiveness of the proposed variable duty cycle control method, the case study is performed using the historical data on Sep. 7th, 2001 acquired at a classroom in Seoul and the obtained results are compared with the fixed duty cycle control method.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1707-1714
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• 2011

상봉~춘천 구간을 운행하는 경춘선 복선전철이 2010년 12월에 운행을 개시함에 따라 시간과 비용측면 모두에서 타 교통수단과 비교하여 우월한 서비스 제공이 가능해졌다. 하지만 수도권 북부(서울시 강북, 도봉, 성북 및 경기 동두천, 양주, 의정부 등)지역에서 경춘선을 이용하기 위해서는 회기와 상봉에서 2회 환승해야 하는 불편이 있다. 이에 본 연구에서는 기존 망우선을 이용하여 경춘선 전동열차의 일부를 성북역에서 시종착함으로써 이용자의 환승 불편을 최소화하고 이에 따른 이용수요 변화를 분석하여 보다 효율적인 열차운행계획을 수립하고자 한다. 본 연구에서는 수요변화분석을 위해 총통행시간(환승시간 및 통행시간)을 고려하여 직접수요모형을 추정하였으며 구간운임 변화에 대한 부분은 고려하지 않아 향후 추가적 보완이 요구된다.