• Title/Summary/Keyword: self sufficiency

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Characteristics of a Fusion Driven Transmutation Reactor

  • Hong, B.G.
    • Proceedings of the Korean Vacuum Society Conference
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    • 2012.02a
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    • pp.582-582
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    • 2012
  • Characteristics of a fusion-driven transmutation reactor was investigated. A compact reactor concept is desirable from an economic viewpoint. For the optimal design of a reactor, a radial build of reactor components has to be determined by considering the plasma physics and engineering constraints which inter-relate various reactor components. In a transmutation reactor, design of blanket and shield play a key role in determining the size of a reactor; the blanket should produce enough tritium for tritium self-sufficiency, the transmutation rate of waste has to be maximized, and the shield should provide sufficient protection for the superconducting toroidal field (TF) coil. To determine the radial build of the blanket and the shield, not only a radiation transport analysis but also a burnup calculation were coupled with the system analysis and it allowed the self-consistent determination of the design parameters of a transmutation reactor.

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Optimum Radial Build of a Low Aspect Ratio Tokamak Reactor

  • Hong, B.G.;Hwang, Y.S.;Kang, J.S.
    • Proceedings of the Korean Vacuum Society Conference
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    • 2011.02a
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    • pp.397-397
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    • 2011
  • In a low aspect ratio (LAR) tokamak reactor with a superconducting toroidal field (TF) coil, the radial build of TF coil and the shield play a key role in determining the size of a reactor. For self-consistent determination of the reactor components and physics parameters, a system analysis code is coupled with one-dimensional radiation transport code. Conceptual design study of a compact superconducting LAR tokamak reactor with aspect ratio less than 2.5 was conducted and the optimum radial build was identified. It is shown that the use of an improved shielding material and high temperature superconducting magnets with high critical current density opens up the possibility of a fusion power plant with compact size and small re-circulating power simultaneously at low aspect ratio, and that by using an inboard neutron reflector instead of breeding blanket, tritium self-sufficiency is possible with outboard blanket only and thus compact sized reactor is viable.

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The Influence of New Town Development on the Changes of the Migration and Commuting Patterns in the Capital Region (수도권 신도시 개발이 인구이동과 통근통행패턴에 미친 영향)

  • Lee, Hee-Yeon;Lee, Seung-Min
    • Journal of the Korean Geographical Society
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    • v.43 no.4
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    • pp.561-579
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    • 2008
  • The population concentration in Seoul has caused the chronic housing shortage. Accordingly the new towns in the Capital region were developed to alleviate overcrowding conditions in Seoul. The purpose of this study is to analyze changes of migration and commuting patterns according to new town development in the Capital region for the period of $1995{\sim}2005$. Further this study examines the changes of self-sufficiency level for new towns using jobs to housing ratio. During the last 10 years, the migration pattern in the Capital region has been pretty much followed the new town development. Such a migration pattern has influenced the commuting patterns, expanding the Seoul Metropolitan Area into northeastern par of the Capital region. The result reveals that self-sufficiency levels of new towns have become higher over the period of $1995{\sim}2005$, indicating that new towns are gradually strengthening their economic functions and have potential to become new business centers in the future. Therefore, the policy focusing on the increase of the job-housing balance ratio and self-sufficient level in new towns will be a desirable policy alternative to solve the transportation problems in the Capital region.

A Critical Review of the Meaning of 'Independence' in Policy Formulation: Redefining Independence and Dependence from the Perspective of the Elderly (노인독립 담론에 대한 비판적 성찰 : 독립과 의존의 재개념화)

  • Rhee, Ka-Oak;Woo, Kug-Hee;Choi, Sung-Jae
    • Korean Journal of Social Welfare
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    • v.56 no.1
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    • pp.5-22
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    • 2004
  • The notion of independence is currently a focal point in public discourses in relation to the elderly. In most countries, the promotion of independence, not the alleviation of dependence, has been addressed as a priority goal in the formulation of social policies for the elderly and the term of independence is used in policy documents as if it were unproblematic. In most cases, policy documents do not offer a clear definition of independence, but generally the term is interpreted as self-sufficiency and health. Accordingly, in order to promote independence of the elderly, concrete strategies such as employment, social activities, participation, direct payments are being introduced in many advanced countries. This study critically reviews these discourses and strategies, and attempts at developing an understanding of how independence and dependence is constructed in contemporary social policies for the elderly. It is our critical point that we explores the meaning of the independence and dependence from the perspective of the elderly. Findings of this study are as follows: The elderly participated in this study tended to construct the meaning of 'independence' as privacy, self-esteem, autonomy and freedom. They also tended to perceive and interpret, from their perspective, the 'dependence' as a natural law and process, affection among human beings, reward and fruit of their lives, social justice and social responsibility. In this sense current policies for the elderly have not fully reflected the perspective of the elderly. Therefore, it is argued what is important in policy formulations for the elderly is to make efforts to reflect the perspective of the elderly on policy-makings for the elderly in terms of independence and dependence.

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The Application of Case Management to the Self-support Program (자활사업에서의 사례관리 적용에 관한 탐색적 연구)

  • Hong, Seon-Mee
    • Korean Journal of Social Welfare
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    • v.56 no.2
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    • pp.311-326
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    • 2004
  • This article focuses on the use of case management in the Self-support program. Case management is a service modality which provides integrated services for people with multiple needs in the community. The goal to accomplish self-sufficiency of working participants in Self-Support Programs is positively affected by the efforts to reduce high social risks they are exposed. It is recommended that the agencies running Self-support programs apply case management to increase the quality of lives as well as the effectiveness of exiting statuses of conditional welfare recipients. Several service considerations of case management are recommended for the change in the structure and functioning of the Self-Support Program: Integrated view and contextualized thinking, empowerment-oriented approach, and a development of the community support system through networking. Types of case management and practice roles of the case manager applicable to the Self-Support Program are also recommended. Structural aspects of an organization, inter-organizational linkages and contextual factors need to be considered to improve problematic conditions that have not enough resources and appropriate authorities in providing case management functions.

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A study on Philip Roth's fiction: Crisis of Jewish identity (필립 로스의 "포트노이씨 병" 연구: 유대적 정체성의 위기)

  • Baek, Nak-Seung
    • English Language & Literature Teaching
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    • v.12 no.3
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    • pp.211-226
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    • 2006
  • This paper examines the crisis of the protagonist's Jewish identity in Philip Roth's Portnoy's Complaint. Jewish values are centered on the philosophy of Judaism and Jewish history. Judaism is based on an ethical monotheism which is Bible-centered. It is characterized by its covenant with God, its humanism, and its emphasis on moral action. It provides essential reasons for man's existence and stresses human confidence and sufficiency. Jewish values can be found in words such as "good," "humanity," "dignity," "responsibility," and "sense of community." These positive Jewish values pervade Philip Roth's fiction paradoxically. Throughout especially Portnoy's Complaint, the protagonist fails to embrace Jewish values in contrast to Bellow or Malamud's heroes and repeat the same mistakes eliciting fits of laughter from readers. The protagonist suffers from his strongly-felt ethical and altruistic impulses perpetually warring with his extreme sexual longings against which he struggles. His desperation grows as he finds himself unable to channel his dissatisfaction and change his situations. His dominating mother and his confusion over Jewishness and Americanism are the main obstacles to his establishment of self-identity. He attempts to build up his gender identity and Jewish identity through his ego-centric sexual relationship with shikses(female gentiles). His inability to embody Jewish values leads to the failure to fulfill his identity. Roth paradoxically shows that the protagonist's realization of Jewishness is essential to the cure for his fragmented self.

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Design Study of LAR Tokamak Reactor with a Self-consistent System Analysis Code

  • Hong, B.G.;Lee, D.W.;Kim, S.K.;Kim, D.H.;Lee, Y.O.;Hwang, Y.S.
    • Proceedings of the Korean Vacuum Society Conference
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    • 2010.02a
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    • pp.314-314
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    • 2010
  • The design of the blanket and shield play a key role in determining the size of a reactor since it has an impact on the various reactor components. The blanket should produce enough tritium for tritium self-sufficiency and the shield should provide sufficient protection for the superconducting TF coil. Neutronic optimization of the blanket and the shield is necessary, and we coupled the system analysis with a neutronic calculation to account for the interrelation of the blanket and shield with the plasma performance of a reactor system in a self-consistent manner. By using the coupled system analysis code, the operational space for a low aspect ratio (LAR) tokamak reactor with a superconducting toroidal field (TF) coil is investigated with an spect ratio in the range of 1.5 - 2.5. The minimum major radius which satisfies all the physics and engineering requirements increases with the magnetic field at the magnetic axis. A required inboard shield thickness is mainly determined by the requirement on the protection of the TF coil against radiation damage. It is shown that to have a fusion power bigger than 3,000 MW in the LAR tokamak with a superconducting TF coil, a major radius bigger than 4.0 m is required.

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Effects of Positive Psychology Program for Psychological and Affectivity Well-being of Self-Support Participants (자활사업참여자의 심리적, 정서적 안녕을 위한 긍정심리프로그램의 효과)

  • Oh, Hyae-Sung;Byun, Sang-Hae
    • The Journal of the Korea Contents Association
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    • v.20 no.11
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    • pp.615-623
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    • 2020
  • The purpose of this study was to verify the effectiveness of the positive psychological group program for psychological and Affectivity well-being of self-support program participants. To this end, 30 participants in the self-support program were recruited from the B-Self-Sufficiency Center in Gyeonggi Province and divided into an experimental group and a control group, and the experimental group conducted a positive psychology program once a week for a total of 8 sessions. As a result of the study, first, the positive psychology program showed a significant difference in the psychological well-being of self-support program participants. Second, the positive psychology program improved positive emotions and reduced negative emotions, resulting in significant differences in Affectivity well-being. Third, the positive psychology program helped to reduce mental pain. Fourth, in the comparison between groups, there were significant differences in psychological and Affectivity well-being. Therefore, it was proved that the positive psychology program is effective in psychological and Affectivity well-being for self-support program participants.

Developing Students' Self-Directed Camp Programs for Gifted Students (학생 주도적 영재 캠프 프로그램 개발)

  • Lee, Kyung-Sook
    • Journal of Gifted/Talented Education
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    • v.21 no.4
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    • pp.907-925
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    • 2011
  • This study is a report about the two summer camps of 2009 and 2010, which were held by some gifted classes of Liberal Arts areas in Chungnam Province. The students' self- directed methods, making an own project topic and an outline plan for that by students themselves before the camp, raised up the students' satisfaction of the camp effectively. Staying with their peer students and teachers for 3 days gave the gifted students a chance for relationship, self-confidence, and self-sufficiency. These joint summer camps provided the students with cognitive development, motivations and a chance to meet other gifted students. Teachers' preparation for the camp, their concrete feedback to each student's project, and students' time spending on one's own camp project were correlated with the students' satisfaction of the camp program. Experience of teacher training in gifted education made significant differences in understanding gifted students and expectations of students' social and emotional development throughout and after the camp.

The Self-efficacy of North Korean defectors The Influence of the Adaptation to Social and Cultural Adjustment in South Korea: A Study on the Moderating Effect of Economic Adaptation (북한이탈주민의 자기효능감이 남한사회문화적응에 미치는 영향: 경제적 적응의 조절효과를 중심으로)

  • Kim, Myoung-Sun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.3
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    • pp.125-138
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    • 2019
  • In this study, we examined how the self-efficacies of North Korean defectors affect their adaptation to South Korean social culture. To this end, 209 North Korean defectors living in Seoul, Incheon, Wonju, or Ansan were surveyed. The results obtained showed shorter residence in South Korea and age were associated with greater fear of South Korean society and awareness of language and cultural differences. On the other hand, age and duration of residence were not found to affect relations between social adaptation and perceptions of low social status, discrimination, or prejudice by defectors, which suggests defectors often live in South Korea for a considerable time without overcoming perceptions of discrimination or prejudice. The factor that most influenced adaptation to social culture was self-efficacy, which affected not only socio-cultural adaptation but also self-sufficiency and the ability to promote oneself, which is essential for economic adaptation in South Korean society.