• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.13 no.1
• /
• pp.86-98
• /
• 2014

Currently, many OBUs(On Board Unit)s were installed on the vehicle because ETCS(Electronic Toll Collection System) using DSRC(Dedicated Short Range Communication) was constructed in the tollgate of the whole country.A research development and the commercialization utilizing the One Card All Pass and those Infrastructures of ETCS, are promoting of ITS services. Although many studies of the application method about the One Card All Pass of ETCS have been made, standards about the application method of the One Card All Pass and payment for the provision of traffic convenience, were not made clear. So we are proposed method that One Card All Pass announced by Ministry of Land, Infrastructure and Transport, takes advantage of the existing DSRC-based to apply ETCS. We have confirmed the performance of the system through a variety of driving test using three test vehicles on trial operation site and ETCS applying application method proposed in this study. As a result of driving test, we have confirmed validity of standard application method proposed in this study through the communication success rate of about 99% and analyzed problem that may occur by applying service parts of ETCS of transportation convenience facilities because of about 1% communication failure rate.

• Journal of Distribution Science
• /
• v.7 no.3
• /
• pp.5-24
• /
• 2009

In the retail management, store location has an important influence like business skills. The reason for failure to selecting location is that the market analysis model is not popular in business field. It gets worse in supermarket industry. Currently, store developers are relying on simple statistics and the sixth sense as market analysis techniques. lt proves that the market analysis model is not distributed well in the field. This market analysis model can apply to medium and small business market using an existing market analysis model, broad market model. And its study outcome can be theorized as a result. Converse's new retail model can be used as to analyze junction market. Pareto_Huff model can also be used to compute shopping probability. To do so, this study can be divided into walking distance market and driving distance market as a model market. Also it examines industry type such as SM and SSM. By taking consumer survey, condition of consumers to select store will be counted in shopping probability so that it improves the objectivity and reliability. Through this process, derived study outcome can be a new estimated revenue model for practical application of selecting store location in large and medium-sized supermarket.

• Journal of Environmental Policy
• /
• v.14 no.2
• /
• pp.49-72
• /
• 2015

Forests in the upstream contributed to improve the quality of water resources for the residents downstream. However, upon structural examination of how the Han River Watershed Management Fund was spent, it became apparent that the fund was not spent toward forest management in the upstream. An additional budget must be allocated if the Watershed Management Committee is to contribute to the management of the upstream forests with such awareness. Therefore, the aim of the study was to assess the willingness to pay and to calculate of budget for forest management in the upstream for water quality improvement. Three hundred surveys on watershed beneficiaries were conducted using biased sampling method. The result was analyzed with conditional logit model and mixed logit model. Forest management, a target variable, was found to have statistical significance. Based on this result, the size of the expected budget was estimated to be minimum 20,526 million won to maximum 20,928 million won.

• Safe Food
• /
• v.3 no.1
• /
• pp.13-21
• /
• 2008

우리나라 학교급식의 현재 성적표를 "양적 성공, 질적 실패"로 평가할 수 있다. 2003년 학교급식이 국가적 교육사업이 되어서 초 중 고 특수학교에서 전면급식이 이루어지고 10,343개교에서 704만명의 학생에게 급식을 제공하고 있다. 현재는 양질의 학교급식을 안전하고 저렴하게 공급하고, 국가식량정책과 연계하여 효율적으로 관리하여야 할 시기이다. 그러나 학교급식 소요경비 연 2조3천억원, 영양사 7,196명 등 63,145명이 종사하는 거대한 산업군이라는 규모에도 불구하고 전체 학교의 70%만이 식당시설을 갖추고 있고 급식 만족도가 학생이나 학부모의 기대에 미치지 못하고 있으며, 식중독 발생의 원흉이 되어 국민적 질책의 대상이 되고 있는 것이 현실이다. 이 문제는 1) 영양사 업무과중에 따른 시간부족, 영양사 지식정보 부족 등에 따른 식재료 및 위생관리 소홀, 2) 냉장, 냉동, 오염/비 오염 구획 등에 필요한 시설과 설비 부족, 3) 교육인적자원부의 급식위생관리의 전문성 부족과 담당 인력 및 정책적, 재정적 지원 부족을 원인으로 볼 수 있다. 학교급식 안전대책은 아래 20대 과제를 추진하여 확보하여야 할 것이다. 전략 1은 "우수한 식재료 위생관리"로서 "급식비 인상 및 현실화, 철저한 수입 농수축산물관리, 식재료 공급 및 전처리업 자유업에서 신고제, 허가제로 전환, GAP(우수농산물관리) 제도 도입, 생산이력제도(traceability) 도입, 급식원료 "품질인증 제도" 도입, 식품원료 전처리 시 세척, 소독프로그램 보급, 학교급식 식자재기준, 규격 설정, 과학적이고 쉬운 검수지침 개발 및 보급, 신속검사키트를 활용한 주기적인 미생물 검사 의무화, 위생 전문가에 의한 검수, 식재료별로 분산된 법령과 관리제도 정비(식품안전기본법), 급식식자재 공급 유통 과정의 감시 감독 강화" 등 13개 과제를 제안한다. 전략 2는 "급식위생 확보 인프라구측"으로서 "급식종사자 전문성 확보(조리/영양/위생), 급식전담기구(학교급식진흥원 /학교급식센터 등) 설치, 급식형태 다양화(위탁/직영 균형 발전), 학교급식법 재개정, 학교급식 HACCF제도 확대" 등 4개 과제를 제안한다. 전략 3은 "급식소 시설 설비 현대화 및 환경개선"으로서 "급식시설 설비 현대화 (전처리실, 냉장고, 온장고 구비 등), 급식소 환경 개선 (상수 사용 확대 및 안전강화, 지하수 소독 강화, 정화된 공기 공급 등)" 등 2개 과제를 제안한다. 전략4는 "급식위생제도 및 관리체계 개선"으로서 "전문적 단일기관 안전관리 (식품안전처)" 과제를 제안한다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.8
• /
• pp.3602-3610
• /
• 2013

The risk of failure in the development of modern weapon systems has been increasing as the demand on the capability and the resulting complexity of the weapons on the war fields are increasing drastically. The analysis of failure has indicated that the main causes can be the following: one is attributed to the unsatisfaction of the system operation concept; and the other is the use of premature technology. As such, DAPA in Korea is urging that the weapons systems development should meet the required operational capability (ROC) as a critical performance requirement. On the other hand, an approach to risk management is to use the technology readiness level (TRL) assessed for each individual technology alone. However, the method of TRL cannot assess the effect of integration between technologies and cannot be performed at system level, which is crucial to systems development. In order to improve the shortfalls, a concept of system readiness level (SRL) has been studied by introducing the technologies integration and also some forms of analysis of advanced degree of difficulty studied separately, but no model considering both of two reported yet. In this paper, under the framework of meeting the ROC, an improved SRL assessment model is presented, which is also considering the advanced degree of difficulty simultaneously. The application of the improved assessment method is discussed in connection with the life cycle of the weapon systems development in conformance with the ROC of DAPA.

• The Journal of Small Business Innovation
• /
• v.19 no.3
• /
• pp.1-16
• /
• 2016

Korean government had used public 'credit guarantee schemes' (CGS) as a counter-cyclical measure. However, it is still controversial about the effectiveness of policy financing on the SMEs. Criticism on policy financing involves the argument that supporting enterprises hampers competition and innovation of SMEs by increasing their dependence on the government and delays the exit of marginal firms. In this paper, we investigate how to effectively build up the rationale of running public CGSs. At the same time, we propose the ways to coexist of public credit guarantee and market-based private finance system for SMEs. First, CGS, as a counter-cyclical function, must coexist with the private financial system by compensating the market failure caused by pro-cyclical behavior of the private financial market. Second, CGS has the comparative advantages, compared to both the interest rate policy of the central bank and fiscal policy of the government. The credit guarantee is the symptomatic treatment that could revitalize the economy shortly by providing liquidity. Also, knowing that CGS is provided based on the leverage ratio defined by outstanding guarantee divided by capital fund, public 'credit guarantee' (CG) has an advantage that is free from the risk of government deficit. Third, the reason for existence of the CGS should be founded in supporting services for SMEs, available only in a public sector that is difficult to expect from private banks. In this regard, it is desirable to strengthen the publicness of credit guarantee over the support for start-ups, growing companies, the improvement of productivity, increase of exports, a long-term investment in facilities, the employment-creating businesses, and innovative enterprises.

• Information Systems Review
• /
• v.14 no.2
• /
• pp.65-92
• /
• 2012

Smart work, which is defined as work performed at home, satellite offices or with the smart devices to continually collaborate with the co-workers in anytime, anywhere using IT, is attracting much attention as an alternative work way to cope with the demographical changes of the low fertility and aging. Whereas some implementation cases of smart work have been considered as the success, the other cases have been reported as the failure to implement smart work practices. Nevertheless, there are few researches to identify the reasons of successful ways to adopting smart work. This study integrated the IT-based changes with the smart work practices to identify the critical success factors of smart work in individual, organization and industry levels. As the results, we found out the expected values of introduction, core elements of implementation, and industry characteristics to efficient adoption for smart work. Also, this study compared these evidences with the incumbent smart work policies. The contributions of this study is to develop the guideline to adopting smart work, the smart work implementation strategy and the improvement on the business process.

• Economic and Environmental Geology
• /
• v.53 no.1
• /
• pp.111-120
• /
• 2020

Remarkable scientific and technological achievements are mainly shown in the 'super-convergence' or 'convergence of convergence' among cross- disciplinary fields, and advanced countries are promoting the 'high-risk, high-return research' ecosystem. Google LLC is carrying out numerous new challenges in terms of a non-failure perspective. Innovative research by the US Defense Advanced Research Projects Agency (DARPA) has produced such breakthroughs as the Internet, GPS, semiconductors, the computer mouse, autonomous vehicles, and drones. China is pioneering a 'Moon Village' and planning the world's largest nuclear fusion energy and ultra-large particle accelerator project. Japan has also launched 'the moonshot technology development research system' to promote disruptive innovation. In Korea, the government is preparing a new research program to tackle the global scientific challenges. Therefore, it is necessary to determine the reasonable geoscientific challenges to be addressed and to conduct a preliminary study on these topics. For this purpose, it is necessary to conduct long-term creative research projects centered on young researchers, select outstanding principal investigators, extract innovative topics without prior research or reference, simplify research proposal procedures, innovate the selection solely based on key ideas, and evaluate results by collective intelligence in the form of conferences.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.10 no.5
• /
• pp.1-13
• /
• 2011

Recently, a number of OBU(On Board Unit) have being spreaded since ETCS(Electronic Toll Collection System)using DSRC(Dedicated Short Range Communication) was installed in the tollgate of the whole country. Many R&D and commercialization related to ITS service using DSRC and OBU mentioned above are ongoing such as traffic information collection and provision and a signal control, and public traffic information and management and so on. Especially, there are many researches conducted(conducting) on traffic information collection and provision using communication between OBU and RSE. However, Standards for both DSRC application and traffic collection and provision are not established clearly yet. So we would like to suggest a method of traffic information collection and provision without changing of standard related to DSRC. This method is to put the traffic messages into the existing Action primitive for ETC, which is described on "Technical criterion IV of basic traffic information exchange" which was notified by Ministry of Land, Transport and Maritime Affairs. Proposed standard application method is applied both to RSE and OBE. It is the same system which ETCS used in highway, currently. We confirmed the efficiency and performance of the system through conducting a variety of driving test using 4 vehicles in real road condition. Result of the real road test shows the effectiveness and validity of this method with about 97% communication success rate and based on studying the cases of 3% communication failure, we can analyse the expected problems in traffic information collection and provision using this method.

• Journal of the Economic Geographical Society of Korea
• /
• v.22 no.4
• /
• pp.422-437
• /
• 2019

Compared to the significant number of researches on international immigration, there has been less attention to return migration. This is partly because return migration has been understood as a simple phenomenon resulted from a successful return with accumulated capital or adaptation failure. Since the mid-1990s, a large number of Korean-Chinese have migrated to Korea, and recently it became more common to witness the return of them. This study examines the strategic choice of self-employed Korean-Chinese returning to Yanbian, Recently, an increasing number of Korean-Chinese starts a small business, such as restaurants in Yanbian after accumulating capital in Korea. The relatively short stay in Korea is not only for saving money to initiate their own business. Rather, they could obtain new business opportunities in Yanbian by using the experiences and networks built in Korea. In short, the return migration of the Korean-Chinese to Yanbian can be understood as a strategy of capital accumulation utilizing the gap in the World-systems.