• 한국식생활문화학회지
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• 제34권4호
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• pp.389-400
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• 2019

In this study we compared the cognitive function (Mini-Mental State Examination for Dementia Screening: MMSE-DS) and nutrient intake of elderly women with dementia in a long-term care facility (EW-LCF) and a day-time care facility (EW-DCF). This survey was conducted from July 2015 to May 2017 on 73 elderly women with dementia (47 women in LCF and 26 women in DCF) in the city of Incheon. The data obtained from interviews with the subjects and caregivers were analyzed using the SPSS 20.0. The total score of the MMSE-DS and intakes of most nutrients in the EW-LCF were significantly lower compared to the EW-DCF (p<0.05). The nutrient adequacy ratios (NAR) of protein, vitamin A, C, $B_6$, $B_{12}$, thiamin, riboflavin, niacin, folic acid, calcium and phosphorus in the EW-LCF were significantly lower compared to the EW-DCF (p<0.05). However, the indexes of nutritional quality (INQ) of vitamin C, $B_6$, thiamine, niacin, calcium, magnesium, and iron in the EW-LCF were significantly higher compared to the EW-DCF (p<0.05). As a result, the subjects showed an unbalanced and insufficient nutrition intake status regardless of the type of care facility. Most nutrient intakes of the EW-LCF with lower cognitive function were very significantly lower compared to the EW-DCF (p<0.001). Therefore, it is necessary to assess the cognitive function and nutritional status regularly at care facilities for the elderly women suffering with dementia and to provide specialized individual nutritional management.

• KIEAE Journal
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• 제16권4호
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• pp.47-54
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• 2016

Purpose: Grafting new hanok-style application technology on child daycare facility among public buildings can be an alternative that provides infant facility, which is placed at the center of social attention and interest, with pleasant nursing environment. Besides, it is expected to have a great impact on infants' and young children's emotion by helping them recognize traditional culture at early stage and furthermore can be used for villagers to experience differentiated traditional culture. Method: To investigate the recent construction of HeungCheon/SuRak/GeumGwa's Hanok child daycare facility recognizing for architectural planning characteristics in common tendency Hanok that presents a physical improvement plan for preparing the continued competitiveness. Also attention to the creative expression of the traditional spaces about the natural environment are implemented in Nurseries and we propose the possibilities that can be realized in the future Hanok child daycare facility. Result: The combination of modern materials and modern construction technology of New-hanok method with improved ability has improved the shortcomings of traditional architecture and increase the ease and safety of traditional architecture succeed the suggest direction of improvement modern society. Therefore, Hanok child daycare facility is preparing adequate capability to solve regional polarization and social care issues.

• 한국조경학회지
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• 제29권6호
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• pp.50-61
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• 2002

As recognition and polices for plans to preserve natural resources and to develop environment-friendly space in school education is developed, not only organization of curriculums related to these is required but also facilities for the education are indispensable. Therefore, this study tries to suggest several standards on matters including kinds and scale of facilities and the introduction of species by facilities required for outdoor teaming spaces for environmental education in the elementary school system. The methods of this study include researching various records related to environmental education in elementary school, researching the present condition of outdoor learning space installed and operating in the existing schools by making an on-the-spot survey, and analyzing appearance frequencies of plants and animals displayed in the text. In addition, the actual conditions of the facility use and management were investigate through a questionnaire, We chose and diagrammed a model of the installed facilities by putting the results together. For analyses the investigated eight schools, were categorized as ‘facilities-arranged type’or ‘connection type with ecological park’. The first type distributed and arranged facilities, including meteorological observatory, rocky park, experience-learning area, ecological pond, animal-breeding farm and field-leaning area into appropriate locations according to the site conditions of the school while the second type created a natural learning place by integrating several facilities and arranging areas such as an animal-breeding farm and experience-learning area into appropriate sites. In this study, essential facilities for outdoor learning are classified into ecological park, experience-loaming area, field loaming area, and for natural learning, meteorological observatory, animal-breeding farm, and greenhouse.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2000년도 유체기계 연구개발 발표회 논문집
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• pp.272-277
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• 2000

The flow computer named Kogas I has been developed for measuring high flow natural gas. The developed model is classified as individual type in order that one flow computer covers one metering line. Nearly all of the functions are adopted similar to the foreign, commercial flow computer, and the merit of this flow computer is being able to apply for both orifice and turbine meters. The performance has been verified through the field test for 2 years.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2003년도 유체기계 연구개발 발표회 논문집
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• pp.421-426
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• 2003

Recently, mixers are being widely used in the water purification plant in order to increase the filtration efficiency. The mixer normally consists of impeller, shaft, hub, reduction gear, and the driving motor. It is one of the key design issues to confirm that the vibration caused by the rotation of the shaft should not coincide with the natural vibration frequency of the shaft itself. The vibration characteristics of the hydrofoil type mixer, which is the most widely used in real plants are evaluated through the finite element modeling and verified by experiment using the mock-up facility. The fundamental natural frequency of the mixer's shaft is found to be around 1.8 Hz which showed in good agreement with the experiment. The higher natural frequencies to the 2nd, 3rd, and 4th modes are also verified by the experiment. Thus the developed model is to be utilized for the structural design of the real mixer system.

• Geomechanics and Engineering
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• 제35권6호
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• pp.581-591
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• 2023

North Anatolian Fault Zone is tectonically active with recent earthquakes (Mw7.6 1999-Kocaeli and Mw7.2 1999-Düzce earthquakes) and it passes through Marmara region, which is highly industrialized, densely populated and economically important part of Turkey. Many power plants, located in Marmara region, are exposed to high seismic hazard. In this study, open source OpenQuake software has been used for the probabilistic earthquake hazard analysis of Marmara region and risk assessment for the specified energy facility. The SHARE project seismic zonation model has been used in the analysis with the regional sources, NGA GMPEs and site model logic trees. The earthquake hazard results have been compared with the former and existing earthquake resistant design regulations in Turkey, TSC 2007 and TBSCD 2018. In the scope of the study, the seismic hazard assessment for a typical natural gas combined cycle power plant located in Marmara region has been achieved. The seismic risk assessment has been accomplished for a typical control building located in the power plant using obtained seismic hazard results. The structural and non-structural fragility functions and a consequence model have been used in the seismic risk assessment. Based on the seismic hazard level with a 2% probability of exceedance in 50 years, considered for especially these type of critical structures, the ratios of structural and non-structural loss to the total building cost were obtained as 8.8% and 45.7%, respectively. The results of the study enable the practical seismic risk assessment of the critical facility located on different regions.

• 한국농공학회논문집
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• 제63권1호
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• pp.1-9
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• 2021

Number of duck and its breeding facilities have been steadily decreasing for financial and social issues in Korea. Therefore, the 'turning point' for duck industry is strongly demanded. In this study, the questionary survey was carried out to provide backgrounds for developing policy and technology for duck breeding farms. The questionary survey aimed to investigate the information of operation strategy of farm, ventilation, cooling and heating. The total number of survey respondents was 74. In case of facility type, 55.4% of respondents stated they used greenhouse type, 31.3% for winch-curtain type, and 2.7% for windowless type (mechanically ventilated facility). More than 85% of the facilities were using 'natural ventilation', it meant that these situation can restrict the not only environmental control but also the supply policy for 'smart farm' of the Government. 44.6% used the combination of the cross-ventilation method and roof-ventilation method for ventilation operation in summer season, and 31.1% followed only the cross-ventilation method. In case of winter season, 36.5% used the cross-ventilation method, and 33.3% used the combination of cross and roof-ventilation, method. For the ventilation strategy, about 86.5% depended on farmer's experience. In case of heating and cooling, 79.7% were using kerosene heater for winter season, and 43.2% were using mist-spray for summer season, respectively. More than 75% stated that cooling and heating strategies were based on farmer's experience. From the analyses of the survey results, a few proposals for developing policy and technology for duck breeding farm was suggested.

• Steel and Composite Structures
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• 제36권1호
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• pp.17-29
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• 2020

This paper presents experimental and numerical studies on the seismic responses of the steel cabinet facility considering the nonlinear behavior of connections and site-response effects. Three finite element (FE) models with differences of type and number of connections between steel plates and frame members have been developed to demonstrate adequately dynamic responses of structures. The screw connections with the bilinear force-deformation relationship are proposed to represent the inelastic behavior of the cabinet. The experiment is carried out to provide a verification with improved FE models. It shows that the natural frequencies of the cabinet are sensitive to the plate and frame connectors. The screw connections reduce the free vibration compared to the weld one, with decreased values of 2.82% and 4.87% corresponding to front-to-back and side-to-side directions. Additionally, the seismic responses are investigated for various geological configurations. Input time histories are generated so that their response spectrums are compatible with a required response spectrum via the time-domain spectral matching. The results indicate that both site effects and nonlinear behavior of connections affect greatly on the seismic response of structures.

• 농업생명과학연구
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• 제52권6호
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• pp.139-153
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• 2018

본 논문은 최근 이상기후에 따른 재해 재난대비수단으로 유용하게 활용되고 있는 저수지의 개보수사업에 대한 경제적 효과를 계량적으로 분석한다. 이를 위해 저수지개보수사업의 목적을 자연재해에 대비한 안정적인 농업용수 공급과 시설노후에 따른 붕괴예방으로 나누어 그 효과를 각각 측정한다. 저수지 개보수사업에 대한 효과 측정은 저수지 일대에 거주하고 있는 주민들을 대상으로 개보수사업에 대한 지불의사와 금액을 가상가치평가법(CVM)을 이용하여 추정한다. 분석 결과, 자연재해와 재난 예방 관련 지불의사금액의 분포는 유사하게 나타났다. 표본 지역 주민들의 66%가 개보수사업에 지불할 의향이 있다고 응답하였다. 전체 표본에 대한 자연재해 예방 관련 지불의사금액은 주민 평균 32,250~46,147원이고, 재난 예방 관련 지불의사금액은 28,427~47,308원으로 나타났다. 지역유형별로 지불의사금액을 비교해 보면 논 농업 지역, 시설재배 지역, 도시 지역 순으로 높게 나타났다. 한편, 주민별 지불의사금액에 기초하여 각 지역의 저수지개보수사업에 대한 총 기대가치를 산출한 결과 논 농업 지역과 시설재배 지역의 총 기대가치는 실제 사업비 규모에 비해 상당히 높게 나타났다. 이는 주민들이 자연재해 및 재난 예방을 위한 저수지개보수사업의 중요성을 충분히 인지하고 있으며 현재 사업비가 충분치 않을 경우 추가적인 비용을 부담할 용의가 있음을 시사한다.

• 한국조경학회지
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• 제47권5호
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• pp.1-13
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• 2019

본 연구는 유아의 설계참여를 통하여 유아 선호에 부합하는 유아숲체험원 설계안을 도출하는 것에 목적이 있으며, 이를 위해 유아 참여설계에 대한 전체과정을 대상지 인지단계, 계획요소 도출단계, 설계안 도출단계로 구축하였다. 본 연구에서는 설계안 도출 단계를 광주광역시 광산구에 위치한 '송산물빛유아숲체험원'과 K유치원(6, 7세 통합반; 전체 41명) 유아를 대상으로 진행하였다. 설계안 도출을 위해 3회의 설계과정(유아 참여과정 2회, 연구자 분석과정 1회)과 과정별 도구구축, 유아 참여 워크숍을 진행하였다. 연구결과, 첫째, 유아워크숍을 통한 유아의 설계안은 총 41개안으로, 유아 1명이 평균 7.66개소의 공간을 그렸다. 6세 남아가 가장 적게(평균 6.80개소), 7세 여아가 가장 많게(평균 9.0개소) 설계하였다. 전체, 성별, 나이별 모두 신체 및 모험놀이공간을 가장 많이(38.9%~48.7%) 설계하였다. Base map을 활용한 유아설계의 가능성 분석을 위해 41개의 설계안에서 대상지 내 물리적 환경특성(7개 항목)의 출현 여부를 분석하였다. 그 결과, 전체적으로 72번의 환경특성이 나타났고, 이러한 환경특성은 87.8%(26개안)의 설계안에서 1개 항목 이상 나타났다. 둘째, 설계대안으로 APS type(동적 놀이시설공간 집중배치) 15개 안, NS type(자연공간 위주 설계) 14개 안, SPS type(정적 놀이시설공간 위주 설계) 12개의 안의 3개 유형이 도출되었다. 셋째, 설계대안별 선호도(5점 척도) 평가와 3개 유형의 대안 비교평가를 통해 최종 선정된 NS type은 자연공간(숲공간, 숲길, 쉼터, 자연탐색공간, 생태연못)이 주요 공간으로 설계되었고, 동적놀이시설공간, 물놀이 공간, 흙(모래)놀이 공간 등이 적정한 양으로 배치되어 인지적 발달놀이(기능놀이, 구조놀이, 극(상징)놀이) 모두가 충분히 발현될 수 있는 설계안으로 판단된다.