• Title/Summary/Keyword: sufficiency analysis

Search Result 212, Processing Time 0.025 seconds

A Real Business Cycle Model to Study the Effect of Overseas Oil Resource Development on the Korean Economy (실물경기변동 모형을 이용한 해외석유가스 개발사업의 경제적 효과분석)

  • Park, Hojeong;Kim, Jaekyung
    • Environmental and Resource Economics Review
    • /
    • v.25 no.2
    • /
    • pp.179-197
    • /
    • 2016
  • The development of overseas resource is a driving force to secure the energy security in Korea with low sufficiency rate of energy. This paper analyzes the effect of overseas oil resource development on the economy by presenting a real business cycle model with consolidated energy price index. A linear-quadratic dynamic programming is adopted to raise computational transparency and efficiency. The analysis shows that the overseas oil resource development project during 2010 and 2012 decreases the energy price by 1.2% per annum which effect is equivalent to the positive 0.47% to the GDP. The implication calls for steady and robust support for overseas resource development projects to enhance energy resilience.

Shield Material Consideration in the LAR Tokamak Reactor

  • Hong, B.G.
    • Proceedings of the Korean Vacuum Society Conference
    • /
    • 2010.08a
    • /
    • pp.314-314
    • /
    • 2010
  • For the optimal design of a tokamak-type reactor, self-consistent determination of a radial build of reactor systems is important and the radial build has to be determined by considering the plasma physics and engineering constraints which inter-relate various reactor systems. In a low aspect ratio (LAR) tokamak reactor with a superconducting toroidal field (TF) coil, the shield should provide sufficient protection for the superconducting TF coil and the shield plays a key role in determining the size of a reactor. To determine the radial build of a reactor, neutronic effects such as tritium breeding in the blanket, nuclear heating, and radiation damage to toroidal field (TF) coil has to be included in the systems analysis. In this work, the outboard blanket only is considered where tritium self-sufficiency is possible by using an inboard neutron reflector instead of breeding blanket. The reflecting shield should provide not only protection for the superconducting TF coil but also improved neutron economy for the tritium breeding in outboard blanket. Tungsten carbide, metal hydride such as titanium hydride and zirconium hydride can be used for improved shielding performance and thus smaller shield thickness. With the use of advanced technology in the shield, conceptual design of a compact superconducting LAR reactor with aspect ratio of less than 2 will be presented as a viable power plant.

  • PDF

Study on Pyeon (tteok) of Jong-ga Ancestral Ritual Food (종가 제례음식의 편(떡)에 관한 연구)

  • Lee, Changhyun;Kim, Young;Park, Younghee;Kim, Yangsuk
    • Journal of the Korean Society of Food Culture
    • /
    • v.30 no.5
    • /
    • pp.502-544
    • /
    • 2015
  • This study researched a document regarding 'Pyeon (tteok)' on 25 Jong-ga ancestral ritual foods through "Jong-ga Ancestral ritual formalities and food", published during 2003~2008 by the National Research Institute of Cultural Heritage of Cultural Heritage Administration. A after about 10 years, the transmission process of the setting and recipe was compared and analyzed in 2015 by directly visiting 4 Jong-ga. This research classified regions into 7 Gyeonggi, 4 Chungcheong, 2 Honam, and 12 Yeongnam, and classified hakpa, Gyeonggi, Chungcheong, Honam region into 13 Gihohakpa, Yeongnam region into 12 Yeongnamhakpa. The important analysis standard of Jong-ga ancestral ritual food was the region and hakpa, which appeared to considerably influence 'Pyeon' setting style, which represents and symbolizes family and recipe. Gihohakpa Jong-ga, which is an academic tradition that pursues practical interests, seems to highly regard practicality to adapt to changes along with the period. On the contrary, Yeongnamhakpa Jong-ga, which highly regards self-sufficiency living base and moral justification, seems to be highly conservative. Increase in Jong-ga, which utilizes mill, is the result of adaptation to the period environment such as Jongbu aging and lack of labor, etc.

Analysis of Chinese Oversea Direct Investment(ODI) and Methodology of Investment Stimulation in Korea (중국의 대 한국 직접투자 특징 분석 및 투자확대 방안 연구)

  • YU, Ja-Young;LEE, Ji-Na
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
    • /
    • v.70
    • /
    • pp.109-133
    • /
    • 2016
  • As for Korea, China is very important because of an advantageous geological accessibility and high economic dependency. Therefore, the Korean government announced its plan to establish 5billion dollars' investment from Greater China (including Hong Kong and Singapore) and the government has put much effort into accommodating more Chinese investment by diversifying investment channels from Greater China. Under this major Chinese investment boom, it is crucial to conduct in-depth research on accommodation of Chinese investment and create a plan to establish Chinese capital investment that will benefit both the investing country and the countries receiving the investment. Hence, the present study analyzed current trends in Chinese investment for the Korean market, focusing on the stimulation methodology for establishing greater investment from China. To this end, this paper examined various investment characteristics of Chinese investors for the Korean market by researching investment development levels on different time lines and analyzing Chinese investment in Korea for a variety of industries. Through the research, the following study derived a more effective strategy to accommodate greater Chinese capital investment. There has been a worldwide increase in the number of letter of credit cases involving fraud recently. It may happen that the documents which are tendered to the banks under a documentary credit are forged, altered or fraudulent. Banks assume no liability or responsibility for the form, sufficiency, accuracy, genuineness or falsification of any documents.

  • PDF

Input-Output Analysis on Inter-Industrial Water Flow: Application to water consumption change by increasing self-sufficiency ratio of agricultural product in South Korea (물의 산업간 거래에 관한 연구 - 식량자급률 증가가 용수수요에 미치는 효과)

  • Kim, Jae-Joon;Park, Sung-Je;Lee, Jong-Keun;Ryu, Si-Saeng
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2010.05a
    • /
    • pp.406-410
    • /
    • 2010
  • 본 연구에서는 물이용을 포함한 투입산출모형을 구축하고 식량자급률 증가 시나리오를 이용하여 가상적의 물의 소비량을 시산해 보았다. 이를 위해 산업별 물 이용량 자료를 경제활동의 투입요소로 가정하고 투입 산출계정을 확장하였다. 시나리오는 농산물 수입이 감소(5%, 10%, 20%, 40%)함에 따라 및 국내 농산물의 최종소비가 증가하는 방식이다. 분석결과, 국내 농산물 소비가 증가함에 따라 농업부문 생산활동에 필요한 잠재적인 물 소비는 8.3%(3.8억$m^3$)~66.5%(30억$m^3$)로 증가하였다. 또한 순 가상수 유출량(수출-수입)은 시나리오별로 약 -24억$m^3$(SCE1)~-9.8억$m^3$(SCE4)로 나타났다. 이러한 결과는 농업생산이 물 집약적 산업으로 여타 산업과 비교해 물 이용량이 크고, 수출기반 산업이 아닌 국내 소비형 산업의 특성이 반영되었기 때문으로 판단된다. 한편으로 국내 농업의 활성화는 식량자급률 증가에도 기여할 것으로 기대된다. 본 연구의 결과는 국내 식량자급률 증가를 위해서 농업용수 등 수자원의 지속적 확보가 필요함을 시사한다.

  • PDF

A Study on the Perceptions of Teachers on the Implementation of the Ordinance for Guaranteeing Right to Play and the Practice of Play: Focusing on the Ordinance of the Jeollanam-do Office of Education (놀 권리 보장조례의 이행과 놀이 실행에 관한 교사의 인식 연구: 전라남도 교육청 조례를 중심으로)

  • Kim, Jeong Wha
    • Korean Journal of Childcare and Education
    • /
    • v.16 no.6
    • /
    • pp.1-17
    • /
    • 2020
  • Objective: The purpose of this study is to examine whether the 'Ordinance for Guaranteeing Children's Right to Play' is has been implemented well and investigate play practice in elementary school. Methods: For this study, a survey was conducted on 319 elementary school teachers in Jeollanam-do. Results: First, elementary school teachers' perception of the enactment of the 'Ordinance on Children's Right to Play' is high. And their perception is positive about the effect of the 'Ordinance on Children's Right to Play'. Second, among the roles of the Office of Education, play-related training and club support were relatively low. The role of the elementary school director was relatively low in the analysis and disclosure of play performance. Third, the time that children mainly play in school is the middle play time. The sufficiency and safety of play spaces differed by region. Fourth, the contents to be added to the 'Ordinance' are securing play space, budget support, and mandatory play time. Conclusion/Implications: In the future, 'Ordinance on Children's Right to Play' should go through a process of improvement so that children's play is realized as a right.

Health promoting behaviors in low-income overweight and obese women in Korea: an exploratory qualitative study

  • Nho, Ju-Hee;Kim, Eun Jin
    • Women's Health Nursing
    • /
    • v.27 no.4
    • /
    • pp.348-357
    • /
    • 2021
  • Purpose: This study aimed to explore and understand the health promoting behaviors of low-income overweight and obese women in Korea. Methods: Data were collected from 10 low-income overweight and obese women working at a community self-sufficiency center through semi-structured in-depth interviews. Individual interviews were conducted and transcribed. Deductive content analysis was done, using the MAXQDA program. Results: The health promoting behaviors practiced by low-income overweight and obese women were affected by intrapersonal, interpersonal, and organizational/ community factors. Six categories were identified and two category clusters were derived that could best describe their health promoting experiences. As main category clusters, despite "feeling that the body and mind are not healthy" participants noted "difficulty maintaining a healthy lifestyle." Overall, the participants had poor nutritional status, lacked physical activity, experienced much stress in intrapersonal level, and faced intrapersonal-level barriers to health promoting behaviors. Moreover, participants had a lack of personal will, and lack of specific information to practice health promoting behaviors, a lack of time, and too many overall burdens to earn a living for their family while trying to maintain health promotion behaviors. Conclusion: Lifestyle interventions for nutrition management, encouragement of physical activity, and stress management are needed for overweight and obese low-income women. In addition, social support and policies are needed to improve their living environment.

Decision Support System Regarding the Possibility of Using the Reproductive Technologies Taking into Account Civil Law

  • Hnatchuk, Yelyzaveta;Hovorushchenko, Tetiana;Medzatyi, Dmytro
    • International Journal of Computer Science & Network Security
    • /
    • v.22 no.7
    • /
    • pp.413-420
    • /
    • 2022
  • The review of known methods and decision support systems regarding the possibility of using the reproductive technologies showed that currently there are no methods and decision support systems regarding the possibility of using reproductive technologies taking into account civil law. Although the analyzed methods and systems have great potential for use in different contexts, these methods and systems do not take into account the civil law requirements of any country. The paper has developed a decision support system regarding the possibility of using the reproductive technologies taking into account civil law, which automatically and free of charge determines the possibility/impossibility of surrogate motherhood or in vitro fertilization. If it is determined that surrogate motherhood or in vitro fertilization is impossible, the sufficiency of the information in the analyzed contract is evaluated, and the reasons for the impossibility of surrogate motherhood or in vitro fertilization are presented to the user.

Analysis of Fire-prone Areas and Sufficiency of Fire-fighting Water Facilities through Fire Data (화재데이터를 통한 화재취약 지역 식별과 소방 용수 시설 충분성 분석)

  • Dong Hee Park;Min Ji Nam;So Hye Kim;So Hee Lee;Yoo-Jin Moon
    • Proceedings of the Korean Society of Computer Information Conference
    • /
    • 2024.01a
    • /
    • pp.475-476
    • /
    • 2024
  • 본 연구는 한국 경기도 화재데이터를 통한 화재 취약 지역 식별과 소방 용수 시설의 충분성 분석을 통한 지역 안정성 향상을 목표로 하였다. 이를 통해, 정확한 화재 대응 및 예방을 위한 정책 제안과 소방 시설 개선 방안을 모색하고 지역사회의 안전성을 향상시키고자 한다. 연구 결과, 경기도는 캠페인을 통한 시민의 화재민감성 증가를 유도해야한다. 또한. 소방 용수 시설 현황을 분석하기 위해 안전 점수를 산출한 결과, 각 시의 소방용수시설의 절대적 부족은 확인되지 않았다. 따라서, 국가 지방 정부는 화재 발생률을 낮추기 위해 의용 소방대를 확대하고, 화재 민감성 증진을 위한 캠페인을 시행해야한다고 사료된다.

  • PDF

Reactor core analysis through the SP3-ACMFD approach Part II: Transient solution

  • Mirzaee, Morteza Khosravi;Zolfaghari, A.;Minuchehr, A.
    • Nuclear Engineering and Technology
    • /
    • v.52 no.2
    • /
    • pp.230-237
    • /
    • 2020
  • In this part, an implicit time dependent solution is presented for the Boltzmann transport equation discretized by the analytic coarse mesh finite difference method (ACMFD) over the spatial domain as well as the simplified P3 (SP3) for the angular variable. In the first part of this work we proposed a SP3-ACMFD approach to solve the static eigenvalue equations which provide the initial conditions for temp dependent equations. Having solved the 3D multi-group SP3-ACMFD static equations, an implicit approach is resorted to ensure stability of time steps. An exponential behavior is assumed in transverse integrated equations to establish a relationship between flux moments and currents. Also, analytic integration is benefited for the time-dependent solution of precursor concentration equations. Finally, a multi-channel one-phase thermal hydraulic model is coupled to the proposed methodology. Transient equations are then solved at each step using the GMRES technique. To show the sufficiency of proposed transient SP3-ACMFD approximation for a full core analysis, a comparison is made using transport peers as the reference. To further demonstrate superiority, results are compared with a 3D multi-group transient diffusion solver developed as a byproduct of this work. Outcomes confirm that the idea can be considered as an economic interim approach which is superior to the diffusion approximation, and comparable with transport in results.