• Title/Summary/Keyword: 정착구

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A Numerical Model for Predicting the Radial Power Profile in CANDU-PHWR Fuel Pellet (CANDU-PHWR 핵연료 소결체의 반경방향 출력분포 수치모형)

  • Woan Hwang;Suk, Ho-Chun;Jae, Won-Mok
    • Nuclear Engineering and Technology
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    • v.23 no.4
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    • pp.444-455
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    • 1991
  • An accurate and fast running NEDAR model for calculating radial power profile throughout fuel life in both solid and annular pellets for existing and advanced CANDU-PHWR-fuel was developed in this work. This model contains resultant flux depression equations and neutron depression data tables which have been developed for CANDU-PHWR fuel of pellet with the diameter 8.0 to 19.5 mm and enrichment 0.71-6.0 wt % U-235, over a bumup range of 0 to 840 MWh /kgU (35000 MWD/T). In order to obtain the neutron flux distribution in the fuel pellet, the CE-HAMMER physics code was run for a neutron flux spectrum appropriate to a CANDU-PHWR to give predictions of radial power profile for several ranges of fuel design parameters. The results, which were calculated by the CE-HAMMER physics code, were fitted to an equation which is solved in terms of Bessel and exponential functions in order to obtain the parameters, $textsc{k}$, $\beta$ and λ in the resultant equation. The present NEDAR model produce a radial profile which, when normalized to unity at the pellet surface, is slightly higher than the profile of the original ELESIM data table. The predictions of the fission gas release by KAFEPA-NEDAR are in slightly better agreement with the experiments than those of ELESIM. The NEDAR model described in this study has been shown to provide an effective, reliable, and accurate method for determining radial power profiles in CANDU-PHWR fuel rods without incurring a significant increase in computing time.

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고고학 유적지에서 적용 가능한 농경 지시자료와 한반도의 농경활동

  • Kim, Hye-Ryeong;Yun, Sun-Ok
    • Proceedings of the Korean Quaternary Association Conference
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    • 2006.11a
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    • pp.23-25
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    • 2006
  • 제4기 만빙기에서 후빙기 사이의 기후변화는 인류문명에 있어 정착생활 및 농경활동과 더불어 잉여생산물 저장을 위한 토기제작 등과 같은 생활상의 변화를 가져 온 계기가 되었다(F.M. Chambers, 1993; Guoyu Ren, 1998; Mori Y, 2002; Martin Bell et al., 2004). 식물화석, 화분, 식물규소체 등의 대리자료(proxy data)를 이용하여 이시기의 식생환경을 밝히는 것은 고생태복원분야 뿐 아니라 당시의 환경변수들 을 추정하여 인간활동에 어떠한 영향을 미쳤는지에 대한 중요한 정보를 제공해준다. 그러나 홀로세 초기 환경은 인간에게 지대한 영향을 미쳤으나 후기로 올수록 인간 스스로가 환경을 변화시키는 주체가 되었다(Martin Bell et al., 2004). Meyer&Turner(1994)는 인간활동이 자연적인 영향보다 생물구에 시계열적인 변화를 가져왔다고 하였으며, R.B Singh(1995)는 현재뿐 아니라 과거까지 다양한 인위 적인 간섭이 전지구적인 환경변화를 야기 시키는 주된 원인이라고 하였다. 따라서 환경을 복원한다는 것은 바로 그 지역을 생활 터전으로 삼았던 당시 선사인들의 생활상을 간접적으로 들여다 볼 수 있는 기회를 제공해준다. 현재까지 국내 고고학 유적지에서 이루어진 대부분의 발굴조사는 유물과 유구를 토대로 당시 선사인의 생활상을 밝히는데 중점을 두었으나 최근 인간과 영향을 주고 받았을 환경에 관심을 갖고 이를 통해 역으로 인간활동을 추적하려는 다수의 연구들이 제4기학, 고고학, 지리학, 인류학, 생물학, 농학, 기후학 등 다양한 분야에서 학제간 연구로 진행되고 있다(황상일 등, 1999; 조현종, 2000; 김주용 등, 2002; 최정민, 2004; 윤순옥 등, 2005). 그러나 이러한 연구에 있어서 어떠한 대리자료(proxy data)를 어떻게 고고학 유적지에 적절하게 적용시킬 것인지 대리자료의 조성변화나 값의 해석에 있어서 기후인자와 인간영향을 어떻게 분리해 낼 것인지에 대한 문제점이 남는다. 예를 들어 화분분석의 경우 1차적인 환경변화에 따른 식생조성변화를 반영한다. 인간이 활발한 농경활동을 하게 되면서 주변식생을 제거하게 되고, 제거된 나대지에는 재배작물과 잡초들이 자라게 된다. 그리고 이들 화분은 주변 소택지에 퇴적물과 함께 퇴적되어 화분분석 결과 벼과(科)(Gramineae)와 문화지표수종이라 부르는 여뀌속(屬)(Persicaria), 국화과(科)(Composite), 쑥속(屬)(Artemisia), 쐐기풀속(屬)(Urtica) 등의 화분에 있어 확연한 조성변화를 보여준다. 그러나 화분을 이용한 분석은 토탄층이나 유기질 퇴적물이라는 한정된 토양에서만 분석이 가능하며, 조성변화에 있어서 역시 기후와 인간활동의 영향 모두를 반영하기 때문에 이를 구분해 주는 명확한 기준이 필요하다. 따라서 본 연구에서는 이러한 다양한 대리자료 중 고고학 유적지에 적용 가능한 동식물 화석 및 미화석, 지리, 지질학적 자료에 어떠한 것들을 적용할 수 있는지를 살피고, 몇 가지 대리자료를 중심으로 선사인의 농경활동에 대해 살펴보고자 한다.

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Objectives and Strategies of Government Health Promotion Policy (정부의 건강증진사업 목표 및 추진방향)

  • Lee, Jong-Gu
    • Proceedings of The Korean Society of Health Promotion Conference
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    • 2005.09a
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    • pp.3-32
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    • 2005
  • 정부의 건강증진사업은 국민의 건강수명 연장과 삶의 질 향상에 궁극적인 목적이 있다. 이는 건강 지지적인 환경을 조성하고 질병을 예방${\cdot}$관리하며 평생 건강서비스를 제공하고 건강한 생활양식을 형성하도록 함으로써 달성될 수 있는 것이다. 건강증진사업을 위한 기반으로 연구와 개발 강화, 법과 규칙의 조정, 기금과 인력과 같은 자원 확보는 필수적이다. 정부의 건강증진전략은 첫째 자원할당의 우선순위를 확보하는 것으로 건강증진, 질병 및 손상의 예방, 재활관련 사업에 더욱 많은 자원을 할당하는 것이며, 둘째로 국가차원의 건강증진 프로그램을 개발하여 실행하는 것이다. 포괄적인 생애주기별 건강증진 프로그램(건강증진종합계획)과 모아보건, 학교보건, 산업보건, 그리고 만성질환예방프로그램 등이 포함된 포괄적인 프로그램을 개발하여 실행하는 것이다. 셋째로, 건강증진기금을 공공보건을 위한 하부기반과 건강증진 프로그램에 투자함으로써 사업의 하부기반을 정비하는 것이다. 건강증진사업을 위한 하부기반으로는 정책과 위임사항을 들 수 있는데, 국민건강증진법과 국민건강증진종합계획, 2005년 6월에 서울시 의회를 통과한 건강도시추진위원회를 들 수 있다. 정부의 건강증진사업의 법적 기반은 1995년에 제정된 국민건강증진법이다. 국민건강증진법은 국민들이 건강에 대한 가치를 인식하고 책임의식을 함양하며, 올바른 건강지식을 갖고, 국민들이 건강한 생활양식을 실천할 수 있는 환경 조성을 목적으로 하고 있다. 건강증진사업은 대중을 위한 보건교육과 건강상담, 영양관리, 구강보건관리, 질병의 조기발견과 치료를 위한 건강검진, 지역사회 건강문제에 관한 조사와 연구, 담배소비 감소와 건강증진부담금 부과를 통한 국민건강상태의 향상을 위한 사업이다. 훈련과정으로는 보건복지부에서 2005년부터 수행하고 있는 시와 지역을 위한 현장관리 프로그램과 서울시가 수행예정인 지역수준의 지도자 훈련과정이 있다. 건강증진사업의 원활한 진행을 위한 기금조성은 건강증진기금이 담배세로부터 조성되고 있으며 2004년 12월 31일 현재 담배 한 갑 당 500원으로 인상되어 부과되고 있다. 기금의 관리와 운용은 보건복지부가 담당하며, 기금은 건강한 생활양식형성에 대한 지원활동, 국민을 위한 보건교육과 교육자료 개발, 건강증진과 만성질환에 대한 연구, 질병의 조기발견을 위한 건강검진, 구강보건관리활동에 사용되고 있다. 향후 건강증진사업 투자계획은 1단계 (98-02년)에는 사업기반조성기, 2단계(03-06년) 보건소사업발전기, 3단계(07-11년)통합사업정착기로 구성되고 2단계의 인프라구축에 사용될 투자 비율은 30%에서 3단계에 15%로 감소될 예정이며, 사업실행 영역은 50%에서 65%로 확대될 계획이다. 2005년 건강증진사업의 중점목표는 건강증진사업의 지방 분산화, 건강증진사업의 근거마련, 사회적 형평성의 달성에 있다. 건강증진사업의 지방분산화를 위해서는 중앙에 관리센터가 설치되어 기획과 평가, 연구와 개발, 현장관리 훈련을 담당하게 되고, 지역관리센터에서는 자치적인 보건소 중심 건강증진사업의 수행과 평가를 진행하게 된다. 건강증진사업의 근거마련을 위해서 효과가 입증된 사업에 우선순위를 두며, 기획과 평가위원회를 설치하고, 건강증진사업의 평가결과를 환류 할 수 있는 체계를 마련하는 것이다. 또한 건강증진포럼을 구성하며 현 건강조사 체계를 수정한다. 한편 형평성 제고의 측면에서는 저소득층, 노인, 장애인들과 같은 취약계층의 건강상태 향상을 위한 중앙정부와 지방자치단체의 역할을 강화하고, 지역간${\cdot}$사회적 집단 간의 건강증진사업관련 형평성을 제고한다.

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A Study on the Measures to Install of Management Organization for the Sustainable innovation Creation in Innovation City (혁신도시의 지속가능한 혁신창출을 위한 관리기구 설립방안 조사 연구)

  • Kim, Hong-Joo;Kim, Lyun-Hee;Lee, Young-Hwan;Kim, Kyong-Sik
    • Land and Housing Review
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    • v.3 no.2
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    • pp.127-136
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    • 2012
  • The Korean government designated 10 innovation cities throughout the country in 2005 in order to resolve concentration on the capital region and to promote balanced development of localities. An innovation city is a future-type city equipped with environment for innovation and high-quality settlement environment in terms of residence, education and culture by accommodating public institutions and facilitating close cooperation among companies, universities and research institutes. Thus, for the early settlement and activation of innovation cities, this study suggested a plan to operate the current innovation city business centers from a mid- and long-term viewpoint rather than for a limited time. Through this study, we attempt to establish the roles of the centers so that they can play central roles in the move of public institutions, the development of industry-university-research institute clusters, the creation of innovations, and the spread of innovations, which are the goals of the development of public institutions, after the sites have been prepared.

Pull-out Resistance Behavior of the Anchor with the Bump Type Resistors (돌기형 저항체를 설치한 앵커의 인발저항거동)

  • You, Min-Ku;Lee, Sang-Duk
    • Journal of the Korean Geotechnical Society
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    • v.33 no.11
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    • pp.35-43
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    • 2017
  • In this study, the pull-out resistance behavior of the anchor with the bump type resistors at the anchor body was experimentally investigated. In the model tests, the pull-out resistance was measured by pulling out the anchor at a constant speed. Anchor body was installed in the center of the circular sand tank. Pull-out tests were conducted for 10 conditions. The anchor type (existence of the resistor), the friction conditions of the anchor body surface ($1/3{\phi}$, $2/3{\phi}$, ${\phi}$), the bump type resistor set number (1set, 2set, 4set), and the height of resistors (0.05d, 0.10d, 0.20d) were varied. The load-displacement relationship for each conditions was measured during the pull-out tests at a constant speed (1 mm/min). Maximum pull-out length was 80 mm. As a result, the pull-out behavior of the friction type anchor and the expansion type anchor was different. As the number of resistor increased, the maximum pull-out resistance increased and the residual pull-out resistance ratio increased significantly, which were at 171~591 percent larger than that of the friction type anchor.

The Status of Managing Posttraumatic Stress in Life Managers for Elderly People Living Alone and Measures for its Improvement: Focusing on Employees in Seoul (독거노인생활관리사의 외상 후 스트레스 관리 실태와 개선 방안: 서울 지역 종사자를 중심으로)

  • Kim, Keun-Hong;Yang, Jae-seok;Lee, Gyeong-jin;Kim, Jeong-yeon
    • 한국노년학
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    • v.37 no.2
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    • pp.293-308
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    • 2017
  • This study aims to examine Life Managers for Elderly People Living Alone (LMEPLAs) in Seoul regarding their traumatic experience and the status of their posttraumatic stress disorder and also how they are coping with it in order to find out ways to improve it. As a study method, we investigated LMEPLAs in Seoul through a self-administered survey regarding whether they had faced any traumatic experience, types of their traumatic experience, diagnosis on posttraumatic stress, and the status of their coping with traumatic experience. According to the study results, 186 respondents (37.57%) have been found to indicate either partial or complete posttraumatic stress symptoms, but the status of their coping with it is very poor. The followings are the results of our discussion. First, it is needed to find out life managers suffering from posttraumatic stress disorder and build up a system to manage them consistently. Second, it is necessary to vitalize education about traumatic experience and posttraumatic stress management. Third, it is urgently needed to build up a system to support life managers who have faced any traumatic experience or been diagnosed to have posttraumatic stress disorder. Fourth, it is demanded to cultivate and arrange experts equipped with specialized knowledge and technique. Fifth, it is needed for them to build a network with medical institutes to receive a prompt diagnosis and specialized treatment.

Field research and cataloging of Gale's Papers on Thomas Fisher Rare Book Library in University of Toronto, Canada (캐나다 토론토대학교 토마스 피셔 희귀서 도서관(Thomas Fisher Rare Book Library)의 '게일 문서' 현지조사 및 목록작성 연구(硏究))

  • Seo, kang-seon
    • (The)Study of the Eastern Classic
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    • no.71
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    • pp.305-349
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    • 2018
  • James Scarth Gale was a Canadian writer and Presbyterian missionary in Korea. He is A representative figure in Korean studies. Gale was the master of Korean studies at that time, which was based on Korean history, culture, folklore, and language. Gale was the first to will announce Korean Studies to the world. Gale's research and writings have spread to the continent of North America, including Europe and the United States, including Britain. At that time, Gale's study made Korean studies widely known to the world. There is a lack of research on Gale. It is because there is no material and documentary. Gale's documentary is on Thomas Fisher Rare Book Library on University of Toronto in Canada. Gale's documentary Name is Gale's Papers. The official name is MS Col 245, Gale James Scarth Papers. The papers consist mainly of holograph notes for and drafts and typescripts of Gale's works about Korea and his translations of English and Korean texts. In addition, the collection contains correspondence, commonplace books, diaries, the diary of his- second wife, Korean manuscripts collected by Gale, and published articles. The material dates from his work as a Presbyterian missionary in Korea(1888~1927) and from his retirement in England(1927~1937). The documentary Inclusive dates is 1888~1937, Extent is 24 boxes and 8.23 meters. Accession number is 87.046, Gift of George M. Gale in 1987. Liz Ridolfo helped collect the materials in Thomas Fisher Rare Book Library. Thanked. Gale's paper will be an important resource for modern Koreanology studies.

Comparison of the Seawater-Sediment Environment and Habitat Properties with Variable Mud Shrimp Upogebia major Burrow Hole Density and Its Influence on Recruitment and Settlement in the Cheonsu Bay Tidal Flats (천수만 갯벌, 쏙(Upogebia major) 유입 및 정착 밀도에 따른 해수-퇴적물 환경과 서식지 특성 비교)

  • Jeon, Seung Ryul;Ong Giho;Koo, Jun-Ho;Park, Jong-Woo;Kim, Yu Cheol;Jeung, Hee-Do;Cho, Jae-Kwon
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.2
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    • pp.171-182
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    • 2022
  • The habitat degradation caused by large-scale reclamation leads to devastating impacts, such as fine sediment and mud shrimp Upogebia major settlement on Manila clam Ruditapes philippinarum aquaculture in the eastern Cheonsu Bay tidal flats, Republic of Korea. Despite these impacts, there is a lack of studies on the influence of fine sediments on tidal flats that constitute key mud shrimp habitats. This study provides information on the seawater-sediment environment and the influence of dissolved inorganic nitrogen (DIN) fluctuations depending on mud shrimp burrow hole density. Additionally, it discusses countermeasures for Manila clam habitat management. The results show that mean DIN effluxes in areas with a high-density of burrow holes were up to 4 times (0.12 mmol m-2 d-1) higher than those in sites of low-density (0.03 mmol m-2 d-1) within the Saho and Songhak-ri tidal flats. To manage interference within the competition zone of Songhak-ri tidal flat, it is important to utilize the settlements of spawning season in all three dimensions. Consequently, additional studies in other tidal flats are essential and research in zones where mud shrimps and juvenile clams coexist will help to determine the priorities in the efficient management of clam aquaculture.

Chinese Neo-liberalism's the prospect of contemporary and that's theory (중국신자유주의의 현실인식과 그 이론)

  • Kim, Tae-yong
    • The Journal of Korean Philosophical History
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    • no.27
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    • pp.255-292
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    • 2009
  • This thesis is to study on the prospect of contemporary and theory of contemporary Chinese Neo-liberalism philosopher in the 1990s. The previous Chinese liberalists focused only on political and cultural liberalism, neglecting economic liberalism. As a result, liberalism has not taken root in China. Therefore, the social problems of contemporary China are caused by immature and unregulated market economy controlled by the government, not by the market economy. On the other hand, the social relationship in China is not capitalistic yet. The Chinese need to take the gradual developing step to modernize China. China needs to begin an effort to reform China by the way and speed of the refolution, which lies between reform and revolution; not by making new value system, but by keeping daily ethics and rediscovering the Chinese value system, which is the same as universal ethnics. Moreover, it can solve the mental, cultural problems of modern society. Modernization will be achieved not by ruining the Chinese traditions, but by adjusting the traditions, keeping, and strengthening. Consequently, China will be able to move from agricultural absolutism to modern democracy. The democracy can exist only based on the market economy. Therefore, the goal will be accomplished by democracy based on the market economy starting from Confucian tradition.

Evaluation of Bio-Chemical Restoration Index at the Creation Site of Ecological Environmental Zone in Coastal Area (연안생태환경공간 조성지의 생물-화학적 복원지수 평가)

  • Lee, In-Cheol;Yi, Byung Ho;Park, So Young;Ryu, Cheong Ro
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.28 no.1B
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    • pp.161-168
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    • 2008
  • The ecological environmental zones in coastal area, like tidal flat and salt marsh, were gradually decreased due to large scale of coastal development projects, reclamation and so on. Therefore, the development of artificial tidal flat and salt marsh has been emphasized in coastal area as mitigation concept and studies on related this background has performed. But studies on the quantitative evaluation for degree of restoration were insufficient. In this paper, as a fundamental study for evaluation of restoration on the creation of ecological environmental zones in coastal area, it was conducted that the monitoring and experiment for bio-chemical factors (bio-diversity, population and biomass of macro-benthos, survival ratio of reed, the number of heterotrophic bacteria and physico-chemical characteristics such as COD, IL, TN, TP and pH) using a in-situ pilot plant of tidal flat (Zone. P1) and salt marsh (Zone. P2), which was distinguished by content of dredged soil, in Jinudo, Nakdong estuary. From results of this study, the restoration index (RI), for evaluation concerning degree of restoration on the creation of ecological environmental zones in coastal area, was suggested and quantitative evaluation was performed using a restoration index (RI).