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        검색결과 707

        21.
        2023.06 구독 인증기관 무료, 개인회원 유료
        이 연구는 2022 개정 교육과정에서 신설된 고등학교 「금융과 경제생활」의 개발 절차, 기본적인 개발 방향과 주안점 등을 다루고 있다. 개발 과정에서 연구진 내부 회의는 물론 각론 조정팀, 현장 교사, 전문가의 검토 과정, 폭넓은 여론 수렴 등의 과정을 거쳤다. 주요 개발 방향은 학생들의 삶과 연계한 교육과정 구성, 성취기준 및 학습량 적정화, 안정된 금융 생활에 필요한 역량 강화로 잡았고, 개발의 주안점은 사회적 변화를 반영한 맞춤형 금융교 육, 범교과 학습 주제 및 국가·사회적 요구 사항 반영, 융합 선택 과목의 취지를 반영한 통합적 접근 및 중복성 배제였다.
        4,600원
        22.
        2023.05 구독 인증기관·개인회원 무료
        Spent Fuel Pool Island (SFPI) is a spent nuclear fuel storage pool that operates independently of existing nuclear facilities to safely manage SNF and minimize maintenance costs during the nuclear decommissioning process. Since the radiation controlled area can be dismantled before transporting SNF to a dry storage facility, the overall decommissioning period can be shortened, and the risk of occupational exposure during dismantling is reduced. In the US, various nuclear power plants have introduced SFPI for this reason. In this paper, to analyze the economic feasibility of application of SFPI to nuclear power plants to be decommissioned, several scenarios are established in consideration of the decommissioning plan and schedule, SFPI and dry storage facility application schedule. Cost and benefit list (SFPI application cost, SNF management cost, SNF dry storage cask cost, etc.) for each alternative were derived, and economic analysis was conducted by applying the Net Present Value (NPV). As a result of the analysis, it is found that the application of SFPI during decommissioning is economically effective as the NPV showed a positive number even when uncertainty was taken into account.
        23.
        2023.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Laver aquaculture, which occupies a large proportion in the aquaculture industry in Korea, is still highly dependent on human labor. Therefore, it is necessary to study the development of an automatic system to improve the working environment and increase the efficiency of aquaculture production systems. The purpose of this study is to evaluate the economic feasibility of an improved system in a study for the loading-unloading and automatic weighing systems in laver aquaculture industry. Economic analysis of the developed unloading and automatic weighing system were implemented under various conditions to calculate more accurate benefits and costs. As a result of this study, the economic feasibility was found to be very high in the three models: net present value (NPV), benefit-cost ratio (B/C), internal rate of return (IRR). Moreover, the results of sensitivity analysis showed that the economical efficiency of the automatic loading, unloading, and weighing system in laver aquaculture was very high.
        4,000원
        24.
        2023.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 논문에서는 우리나라 경제성장과 연구수행 주체별 공공 연구개발투자, 기업 연구개발투자, 대학 연구개발 투자 간의 장·단기 인과관계를 실증 분석하였다. 이를 위해 1976년부터 2020년 동안의 시계열 자료를 바탕으로 단위근 검정, 공적분 검정, 백터오차수정 모형(VECM)을 통한 인과성 검정을 실시하였다. 분석결과, 우리나라 경제성장과 공공 연구 개발투자, 기업 연구개발투자, 대학 연구개발투자 간에는 장기적으로 인과관계가 존재하는 장기균형관계가 있다는 것을 도출하였다. 그러나, 공공 연구개발투자가 경제성장에 단기적으로 영향을 미치는 데에 비해 기업 및 대학 연구개발투자는 경제성장에 단기적으로 영향을 미치지 않는 것으로 나타났다. 더불어, 경제성장 및 공공 연구개발투자, 기업 연구개발투자와 공공 연구개발투자, 대학 연구개발투자와 공공 연구개발투자 간에 단기적으로 양방향의 인과관계가 있는 것으로 도출되었다. 마지막으로 단기적으로 공공 연구개발에 인과관계가 있는 것은 GDP 경제성장이며, 대학의 연구개발에 단기적으로 인과관계가 있는 것은 공공 및 기업의 연구 개발투자인 것으로 나타났다. 이상의 연구를 통해서 공공 연구개발투자, 기업 연구개발투자, 대학 연구개발 투자와 경제성장 간에는 높은 상호 유기적인 관계가 존재한다는 것을 실증적으로 도출하였다. 향후 연구개발투자가 경제성장에 미치는 파급효과를 높이기 위해서는 대학과 기업의 연구개발투자가 상호 촉진되고, 기업의 연구개발투자가 공공 연구개발투자에 긍정적 영향을 미쳐 공공 연구개발투자가 향후 경제성장에 기여할 수 있도록 하는 정책개발이 필요할 것이다.
        6,100원
        28.
        2023.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study examined the feasibility of exporting dairy products from Korea to Vietnam by identifying characteristics of its dairy product market based on results from the analysis of its dairy product market, and surveys on consumers, wholesalers, and retailers. The results from surveys provide characteristics of Vietnam’s dairy product market, the propensity to consume Korean dairy products, and the feasibility of the Korean dairy product exports market. As rapid economic growth and changes in preference result in an expansion of import market in Vietnam, Vietnam’s dairy product market is highly attractive to Korean dairy products. Vietnamese consumers have high confidence in Korean dairy products and are willing to pay a high price for them. Besides, over 200 thousand Koreans are living in Vietnam. This is favorable to Korean dairy products exports. But the success of the Korean dairy products in Vietnam’s dairy product market also depends upon systematic disease controls, the establishment of its brand image, effective quality and sanitation/safety management, and government support. Notably, the economic effects of Korean dairy products exports to Vietnam are 68.7 billion won for a production inducement effect and 297 persons for an employment inducement effect.
        4,000원
        29.
        2022.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        As the environmental impacts of fossil fuel energy sources increase, the South Korean government has tried to change non-environmental- friendly enery sources to environmental-friendly energy sources in order to mitigate environmental effects, which lead to global warming and air pollution. With both a limited budget and limited time, it is essential to accurately evaluate the economic and environmental effects of renewable energy projects for the efficient and effective operation of renewable energy plants. Although the traditional economic evaluation methods are not ideal for evaluating the economic impacts of renewable energy projects, they can still be used for this purpose. Renewable energy projects involve many risks due to various uncertainties. For this reason, this study utilizes a real option method, the Geske compound model, to evaluate the renewable energy projects on Jeju Island in terms of economic and environmental values. This study has developed an economic evaluation model based on the Geske compound model to investigate the influences of flexibility and uncertainty factors on the evaluation process. This study further conducts a sensitivity analysis to examine how two uncertainty factors (namely, investment cost and wind energy production) influence the economic and environmental value of renewable energy projects.
        4,200원
        30.
        2022.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        To mitigate the environmental impacts of the energy sector, the government of South Korea has made a continuous effort to facilitate the development and commercialization of renewable energy. As a result, the efficiency of renewable energy plants is not a consideration in the potential site selection process. To contribute to the overall sustainability of this increasingly important sector, this study utilizes the Black-Scholes model to evaluate the economic value of potential sites for off-site wind farms, while analyzing the environmental mitigation of these potential sites in terms of carbon emission reduction. In order to incorporate the importance of flexibility and uncertainty factors in the evaluation process, this study has developed a site evaluation model focused on system dynamics and real option approaches that compares the expected revenue and expected cost during the life cycle of off-site wind farm sites. Using sensitivity analysis, this study further investigates two uncertainty factors (namely, investment cost and wind energy production) on the economic value and carbon emission reduction of potential wind farm locations.
        4,000원
        31.
        2022.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 미-중 전략경쟁, 코로나19의 심화와 러시아-우크라이나 전 쟁을 통해 국제 공급망 재편에 대한 요구가 강제적 공급망 재편 현상으 로 변화하고 있는 시점에서, 핵심 영역이라고 할 수 있는 반도체 분야에 대한 독일의 대응 전략 분석을 목적으로 한다. 미-중 전략경쟁 속에서 미국과는 전통적 안보 관계를, 중국과는 중국의 경제적 부상과 함께 상 당한 수준의 경제적 상호의존 관계를 형성하고 있는 한국과 독일은 구조 적 유사성으로 인해 독일 사례 분석은 정책적으로 유의미하다. 독일은 한국과 달리 경제안보 개념은 인간안보 개념 속에서 이해할 수 있으며 한국적 맥락의 경제안보는 공급망 안보로 이해할 수 있다. 따라서 본 연 구는 독일의 경제안보 개념에 대한 이해를 추적하고 유럽의 개방형 전략 적 자율성 개념을 통해 안보와 방위를 넘어서는 무역과 산업, 디지털화, 기후변화, 보건 등의 의제를 포괄적으로 접근하고 있을 뿐만 아니라 독 일의 기술 주권과 디지털 주권 수호를 위한 핵심 사안임을 인정하여, 독 일의 반도체 전략을 분석하고 공급망 안보 영역에서 공동 대응을 통해 협력의 가능성을 모색하고자 한다.
        8,900원
        32.
        2022.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        교량 인프라는 국민의 경제와 사회적 활동에 반드시 필요한 물리적 기반시설이고, 국민의 안전과 편의성에 직결되는 시설이므로 국민의 입장에서 편익을 고려해야 한다. 교량의 구성요소 중 바닥판은 교량 전체의 생애주기 동안 필연적으로 교체 시기가 도래하고 파손 등으로 인한 부분 교체도 빈번하게 이루어지고 있다. 바닥판 교체공사 시 거더와 바닥판을 합성하는 기 존 용접 전단연결재의 문제점을 해결하기 위한 볼트 접합 전단연결재(DY볼트)는 바닥판 철거 공정에서 파쇄를 최소화하고 교 체공사를 위한 전단연결재 재시공이 용이하여 공사 기간을 기존 대비 단축할 수 있는 것으로 분석되었다. 공사기간 중 도로차 단으로 인해 발생하는 도로이용자비용을 산출하여 기존 공법과 비교하는 방법으로 볼트 접합 전단연결재를 적용한 강합성 교량 의 경제성을 도로이용자(국민) 입장에서 분석하였다.
        4,000원
        34.
        2022.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        PURPOSES : The objective of this study was to evaluate the effectiveness of dust removal by dust removal vehicles by the measuring dust load and PM10 concentrations on the sidewalks of block pavements. METHODS : Field experiments were conducted to determine a dust removal method suitable for the sidewalk conditions, as identified through a literature review. Data collection was followed by the evaluation of the sidewalk dust load with removal vehicles and analysis of the PM10 content within a service road. Moreover, an economic analysis was conducted based on the social costs of dust reduction. RESULTS : When cleaning a sidewalk block by spraying water, the contaminants in small gaps in the block pavement could be reduced, providing a potential solution to void clogging. The dust on the surface of the sidewalk was suspended from a paved road with a high level of traffic volume. Using sidewalk dust removal vehicles with sweeping, spraying water, and inhalation reduced the dust load and PM10 contents by more than 2 and 0.07g/m2, respectively. CONCLUSIONS : According to the economic analysis of the development of dust removal vehicles for sidewalks, the cost-benefit analysis method shows an input effect of 0.4, but if the reduction amount of fine particles such as PM2.5, further experiments are necessary to address the atmospheric fine dust concentrations resulting from cleaning sidewalk block pavements.
        4,300원
        36.
        2022.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study has found the socio-economic factors that affect occupational accidents and measured the influence quantitatively. We built the panel data of 4 countries (Japan, Germany, the U.S., and the U.K.) and the analysis model counted on the fixed effect model to reflect the countries' differences. The fatal occupational injury rates in the analyzed countries had a statistically significant relationship with the level of per capita GDP, the proportion of the construction industry, the rate of male workers, annual average working hours, the rate of workers in manufacturing and construction industries, etc. The annual average working hours have a positive correlation with the fatal occupational injury rate. To reduce occupational accidents effectively, we should be monitoring and researching various factors that can affect the occurrence of occupational accidents such as worker characteristics, changing industrial structure, and changes in working hours.
        4,000원
        37.
        2022.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In addition to simply providing quality food to the people, the fishery industry must be maintained and developed because it has various functions such as national food security, preservation of natural scenery, protection of national territory, and revitalization of the local economy. However, risk factors such as climate changes and environmental destruction have raised concerns about the sustainable development of the industry. Since these risk factors are becoming larger and more complex over time, it is time to conduct research related to the risk of the fishery industry. Therefore, the purpose of this study is to explore the risk factors facing the fisheries at this point, to analyze the economic ripple effect of regional fishery product supply shortage, and to draw implications. As a result of this study, the economic ripple effect of fishery product shortage per won was highest in Busan, followed by Gangwon, Gyeongnam, and Gyeongbuk. Considering the size of the local fishery industry, Busan had the highest supply shortage per 1% of local fisheries production. It is also necessary to prepare special risk management and countermeasures for these regions since the effect of supply shortage in regions such as Jeonnam, Gyeongnam, and Jeju is large compared to other regions.
        5,400원
        38.
        2022.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study attempted to estimate the amount of expenditure per capita of visitors to the Mongsanpo fishing village tourism festival, and quantitatively measure how much the festival contributes to the local and national economy through input-output model. The analysis data used 302 questionnaires, excluding missing questionnaires, surveyed on festival visitors from April 21 to May 7, 2018, during the 9th Mongsanpo port webfoot octopus and seafood festival. The main results of this study can be summarized as follows. First, analyzing the average expenditure per person of festival visitors, it shows that the average one-person festival visitor consumes KRW 129,519: entertainment costs KRW 5,672 (4.4%), accommodation costs KRW 16,860 (13.0%), food costs KRW 74,791 (57.7%), transportation costs KRW 21,646 (16.7%), shopping costs KRW 6,788 (5.2%), and other costs KRW 3,762 (2.9%). Among the expenditures of festival visitors, the proportion of food expenses was the highest, and transportation costs and accommodation costs were in order. Second, based on the actual expenses spent by visitors at the fishing village tourism festival, the direct economic effect of the Mongsanpo fishing village festival was estimated be approximately KRW 14.8 billion. Third, as a direct and indirect economic impact effect of the Mongsanpo fishing village tourism festival in 2018, the amount of production induced in the local and national economies was estimated at KRW 33.3 billion, and the amount of value-added inducement was estimated at 11.3 billion won, and employment inducement reached 272 people, which is considered to contribute greatly to the national economy. This study quantitatively analyzes and provides the extent to which the fishing village tourism festival using local specialized fisheries directly or indirectly contribute to the local and national economy. Thus, it is expected to serve as useful information by providing basic information on business feasibility required for budgeting for local fishing tourism festivals.
        4,000원
        39.
        2022.09 구독 인증기관·개인회원 무료
        본 연구는 경제적 충격이 개발도상국의 영양 섭취에 미친 영향 분석을 목표로 한다. COVID-19 팬데믹 발생 이후, 2020년 세계 경제 성장률은 –4.4%를 기록하였 고, 빈곤선 이하의 인구는 2019년 6억 4천만 명에서 2020년 7억 1천만 명으로 급 증하였다. 경기 침체와 빈곤 인구 급증은 개발도상국의 식량 불안정 상태를 유발 하였다. 본 연구는 ‘영양실조 유병률(Prevalence of Undernourishment, PoU)’을 영양 섭취를 대표하는 대리변수로 하여 COVID-19로 인한 경제적 충격이 영양 섭 취에에 영향을 미쳤는지 실증분석을 하였다. 연구의 분석 기간은 2014년부터 2020 년이고 개발도상국 33개국을 대상으로 하였다. 확률효과모형(random effect)으로 패널데이터를 분석한 결과, COVID-19의 발생과 저소득 개발도상국(low-income)은 정(+)의 관계로 영양실조 유병률을 증가시키는 요인으로 작용하였다. 반면 1인당 GDP, 안전한 식수를 사용하는 인구 비중, 농촌 거주 인구 비중은 부(-)의 관계로, 소득 및 인프라가 개선될수록 영양 섭취 부족 인구가 줄어드는 것을 알 수 있다. 따라서 개발도상국에 속하는 국가 간 실질적인 소득과 인프라 구축 간의 차이가 상당하며, COVID-19와 같은 감염병으로부터 경제적 충격을 받는 경우 이를 대응 할 수 있는 국제사회의 지원 및 경제발전을 위한 자발적인 노력이 병행되어야 할 것이다.
        40.
        2022.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Heavy bitumen scattered in the underground sedimentary layer is a kind of unconventional energy source, and by extracting it, a production well is excavated in the sedimentary layer and high-temperature and high-pressure steam is injected to reduce the viscosity of bitumen and recover it to the ground steam assisted method is applied. As a recovery method that uses the steam effect of the dilution effect of solvent injection, it is a recovery method that can increase thermal efficiency. In this study, the process system of the central processing facility(CPF) of the hybrid steam-solvent recovery method that injects solvent into the existing steam assisted method was analyzed, and the core facilities for each process were identified, and hybrid steam-solvent recovery compared to the existing steam assisted method. In the case of the method, it was evaluated that the amount of steam supply and all utility costs decreased according to the solvent injection.
        4,000원
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