• The Journal of Korean society of community based occupational therapy
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• v.4 no.2
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• pp.31-40
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• 2014

Objective : The purpose of this study was to investigate the preference of bathroom environment for stroke patients. Methods : The subjects of this study were 97 who have experience in rehabilitation therapy at hospitals in Busan. A questionnaire was distributed and collected from February 24th to March 13th, 2014. Results : First, the subjects demand for improvement that non-slip tile and safety handle on bathtub. Second, they preferred the sliding door, sliding door handle, shower booth of convenient facility, non-slip tile, built-in cabinet, L-shaped safety handle, natural ventilating window, floor heating, easier bathtub to enter, bathtub with handle, tilted sink, water temperature index, toilet with safety handle, and bath chair. Conclusion : This study would contribute to bathroom environment for safety and ease in use.

• Journal of Korean Tunnelling and Underground Space Association
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• v.22 no.3
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• pp.293-310
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• 2020

The purpose of this study is to present the most effective smoke exhaust mode by comparing the quantitatively evaluated risks according to the smoke exhaust mode when a train fire occurs in a subway platform. Therefore, applying the typical subway platform as a model, train fire scenarios are developed with the evacuation start time and location of the fire train for each exhaust mode. The fire accident rates (F) are calculated and the number of fatalities (N) was quantitatively estimated by fire analysis and evacuation analysis for each scenario. In addition, the F/N curve compared with the social risk assessment criteria and the following conclusions were obtained. In the event of a train fire at the subway station platform, the evacuation must start up within 600 s in maximum to ensure the evacuees' safety. To secure evacuation safety, it is advantageous to operate the HVAC system of the platform in the air-supply mode at station without TVF. Comparing the F/N curve for each exhaust mode with the social risk criteria, it turned out that the risk significantly exceeds the social risk criteria in case of no mechanical ventilation. As a result, this paper shows that the ventilation mode in which TVF are exhausted and HVAC system is operated in the pressurized mode are the most effective smoke exhaust mode for ensuring evacuation safety.

• Journal of agriculture & life science
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• v.45 no.6
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• pp.265-278
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• 2011

Effects of the open level of the side window were studied to control the temperature and relative humidity in the fog cooling greenhouse. The greenhouse was cooled by air atomizing spray nozzles of the air and water two-fluid process. The control process includes the measuring of environmental variables, setting and coding of the water balance equations and heat balance in greenhouse, calculating of the roof window open and spray water, and operating of the motor and pump. The target temperature and relative humidity were set at $28^{\circ}C$, 75%, respectively. The three modes of the side window open level were 0%, 50% and 100%. The average dry bulb temperatures of the inside air were 28.2, 27.2 and $26.3^{\circ}C$, respectively and their standard deviation was ranged from $0.4^{\circ}C$to $0.8^{\circ}C$. Also the relative humidity of the 0% mode was the best controlled one with the average of 76.3% and the standard deviation of 2.1%.

• Korean Journal of Comparative Education
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• v.27 no.4
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• pp.285-310
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• 2017

This study reviews recent changes in parenting support policy in Japan, and examines the roles and functions of day-nursery as the base for parenting support in the local community. The purpose of this study is to provide implications for the direction of the parenting support policy and child-care facilities for the local communities in South Korea. The analysis concentrates on the official national reports such as the Declining Birthrate White Paper and Japan's National Guidelines for Care and Education at Day Nursery by the Japanese Cabinet Office. The study finds that the Japanese government has introduced comprehensive medium and long-term policies for all the members of the community with recognizing the changes in the domestic and foreign child-rearing environments and social needs. These policies have also helped to improve the social awareness of parenting. The role of the day-care center has been raised as a significant part of the support for child-rearing in the local community due to the revision of the Child Welfare Act for nursery school teachers in 2001 and the official announcement of Japan's National Guidelines for Care and Education at Day Nursery in 2008. The study also concludes that the social responsibility of the nursery center has been strengthened by being utilized as a public resource for the community. From the findings, we can elicit the conclusions and implications that the roles and functions of child care centers as a significant base for parenting support in the local communities need to be considered. We also listen to the voices of stakeholders such as parents and staff of child care centers. Last but not least, we would understand the social role and importance of bringing up children by cooperation of the community members, and promote the role of child care centers as a central place providing and communicating information on child-rearing in the local communities.

• Proceedings of the Korea Water Resources Association Conference
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• 2016.05a
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• pp.577-577
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• 2016

기후변화는 전 지구적 현상으로 이로 인한 홍수피해는 심화되고 있다. 기후변화 정부간 협의체 5차 보고서(IPCC, 2014)에 의하면 1980년대 이전 세계 평균 홍수피해액은 70억 달러 수준이었으나 2011년에는 240억 달러로 크게 증가한 것으로 나타났다. 2013년 필리핀에 태풍 '하이옌' 내습으로 인해 6,200여명이 사망하고, 2천여명이 실종되는 피해가 발생하였다. 국내의 경우 2014년 8월 경남 부산지역에는 시간당 130mm가 넘는 국지성 호우에 따라 차량 4,000여대가 침수, 5명 사망 등 약 125억원의 재산피해가 발생한 바 있다. 국회예산정책처(2012)와 소방방재청(2014)에 따르면, 자연재해 중 집중호우 및 태풍에 의한 호우피해가 85%를 차지하였으며, 전국 하천 피해액의 98.7%가 지방 및 소하천에서 발생하고 있다. 이에 따라 중소하천과 같이 소외된 지역의 물복지 향상을 위해서는 홍수재해 상황에 대하여 선제적 효과적 대응을 위한 과학적 체계적인 홍수통합관리 체계의 구축이 요구되고 있다. 특히 홍수관련 유관기관 자료를 연계한 실시간 상 하류 수문상황 모니터링, 홍수분석 및 하천수위별 대응기준 수립, 배수펌프장 등 수리시설원격 제어 등을 포함하는 홍수 통합관리체계 구축과 같은 비구조적 대책의 수립이 제방정비, 저류조 등 구조적 대책과 병행하여 반드시 추진되어야 한다. 이에 K-water는 ICT기반의 물관리기술력과 경험을 활용하여, 인력 기술력 예산 부족 등 열악한 재난관리 여건으로 어려움을 겪고 있는 지자체와 협업을 통해 홍수통합관리체계 구축을 지원하고 있다. 홍수통합관리체계 구축은 지자체 상 하류의 다양한 재난정보를 수집 통합하고, 수집된 정보를 활용한 홍수분석 및 홍수 대응기준 수립을 통해 예방적 재난대응 체계를 마련하는 것으로, K-water는 지난 2010년 남원시를 시작으로 무주군, 군산시, 진안군 등 21개 지자체의 홍수재해 통합관리체계 구축을 지원하고 있다. 특히 남원시의 경우 본 사업을 통한 시스템 구축후 홍수피해액이 50% 감소한 것으로 확인되는 등 재난관련 골든타임을 확보하고 홍수피해 최소화를 위한 홍수재해 통합관리 체계 구축은 이제 선택이 아닌 필수라 할 수 있다. K-water는 물관리 전문 공기업으로써의 역할을 다하고, 예방 중심의 재난관리 체계 마련을 위해 '지자체 맞춤형 홍수통합관리체계' 구축 지원을 지속적으로 확대해나갈 예정이다.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.257-257
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• 2019

최근 기후변화에 따른 대응을 위해 기존 수자원 활용의 고도화 및 배수능력 증대를 위해 다양한 방안이 추진되고 있으며, 그에 따라 기존 개수로에 신규 수로를 연결하여 합류와 분류를 시키는 사례가 증가하고 있다. 특히 신규 개수로 연결을 위한 분류부 형상은 관련 설계기준, 분류유량의 규모, 해당 지점의 하상변동 경향, 지형여건, 흐름 분류시설 및 구조물의 형태(양수펌프장, 스크린이나 수문, 암거설치)와 같은 구조적 요인 등에 의해 달라지지만, 이와 관련된 연구가 매우 부족한 실정이다. 따라서 본 연구에서는 2차원 수치모형을 이용하여 분류부 평면형상 변화에 따른 분류유량비와 흐름분리구역 분포 등에 대한 흐름특성을 분석하고 이수와 치수계획 수립 등에 활용하고자 한다. 본 연구에서는 TELEMAC-2D 모형을 이용하여 주수로 상류 유입흐름의 프루우드 수가 0.74, 0.52인 두 흐름에 대해 형상변화 폭을 주수로 폭(B)의 1B, 주수로 형상변화를 급확대, 점진적 확대 구간길이를 1B~3B로 변화시키며 분류유량비(분류수로 유입유량/상류 유입유량)와 흐름분리구역의 위치와 크기 등에 대한 분석을 수행하였다. 분류부 상류 유입흐름의 프루우드 수가 0.74, 분류유량비는 0.33인 흐름은 주수로 형상변화 구간길이가 1B 일 때 0.44~0.46, 3B일 때 0.54~0.60으로 점차 분류유량비가 증가한다. 반면 상류 유입흐름의 프루우드수가 0.52, 분류유량비가 0.52인 흐름은 주수로 형상변화 구간길이가 1B일 때 0.77~0.82에서 3B일 때 0.70~0.80으로 점차 분류유량비 증가율이 감소하는 경향을 나타내게 된다. 주수로 형상변화 폭을 0.5B, 1B로 달리하여 수로 형상변화를 시킨 경우 분류유량비 증가율은 각각 135~162%, 134~176%로 나타났으며, 이는 수로 형상변화 폭보다 변화구간 길이가 더 큰 분류유량비 변화에 영향을 미치는 것을 확인할 수 있다. 흐름분리구역은 상류 유입흐름의 프루우드 수가 0.74인 경우 수로형상 변화구간과 분류수로 입구에 형성되지만, 상류유입흐름의 프루우드 수가 0.52인 경우 수로형상변화 구간과 주수로 하류에도 형성된다. 수치실험 결과 동일수로 폭 직사각형 $90^{\circ}$ 분류수로에서 분류부 평면형상의 변화에 따라 주수로 하류방향흐름의 관성력은 감소하는 반면 분류수로로 향하는 횡압력경사와 흐름분리구역 발생위치 변화로 인해 분류 수로내 통수능이 증가하여 분류유량비가 급격하게 증가하게 된다. 또한 분류부 상류 유입흐름의 관성력이 작은 경우 분류부 평면형상 변화시 주수로 하류방향에서도 흐름분리구역이 형성되고 주수로 종방향 수위가 상승함에 따라 분류흐름 계획수립 시 세심한 주의가 필요하다.

• Journal of Wetlands Research
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• v.23 no.4
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• pp.307-316
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• 2021

Due to rapidly increased urbanization, impervious area has been extended and concerns about urban flooding has been increased as well. A lot of effort has been made to restore the urban water circulation. Low Impact Development (LID) technology that consist of retention, infiltration, and evapotranspiration has begun to attract attention to simulate the hydrologic phenomenon before and after development. Many researches on the technique is being actively conducted. In this study, the effect on reducing runoff in urban catchment was analyzed and evaluated by applying LID techniques using SWMM and six scenarios. A SWMM-LID model was built for the Gasan 1 rainwater pumping station basin, and Green Roof and Permeable Pavement were selected as LID techniques to be applied. As a result, the reduction effect of the permeable pavement was larger than green roof. In the future, the results could be used to design a LID facility using the characteristics of the watershed, and other urban water resource factors such as river and groundwater levels that affect each other should be considered, so that the entire system can be considered.

• Korean Journal of Breeding Science
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• v.41 no.4
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• pp.496-501
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• 2009

In order to promote the efficiency of strawberry breeding programs, pollen viability of strawberry, 'Seolhyang' was investigated using the fluorochromatic reaction test and seed set under controlled environment. Pistil receptivity was also assessed by hand pollination. Four varieties including 'Maehyang' were used for the test of pistil receptivity with 'Seolhyang' as a pollen parent. Pollen viability remained high for several days under dry conditions as below 33% relative humidity while the greatest loss of viability occurred at 76% relative humidity. The viability was rapidly decreased at high humidity and almost all grains were unviable in 7 days after storage. Pollen viability does not appear to be drastically reduced if the relative humidity is low. Therefore, humidity is more important factor than temperature for the pollen viability in Fragaria${\times}$ananassa. The rate of seed set by hand pollination lasted higher than the average of 77.2% from 2 to 8 days after emasculation when the daily average temperature was around $15^{\circ}C$ in plastic house. It began to decline gradually from 10 days and had decreased dramatically after 12 days except several cultivars. Based on the daily mean accumulated temperature, it is recommended to have an artificial pollination between the range of $45{\sim}140^{\circ}C$ after the emasculation to increase the rate of seed set in strawberry.

• Journal of the Korean Society of Radiology
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• v.12 no.6
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• pp.719-725
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• 2018

After 9/11 attacks in the U.S, Terrorism has increased the number of unspecified casualties through multi-use facility terror attacks compared to the past. The subsequent London bombings and the self-destruction of Pakistan increased people's fear and social anxiety. As international events have been held in Korea recently, awareness and concern over radioactive terrorism and security management of radioactive materials are increasing. In this paper, we compared the results of different meteorological conditions using HotSpot Code. After creating a possible terror scenario in Korea, sources likely to be use in RDD and Dirty bomb were investigated. The meteorological condition was selected by comparing the Pasquill-Gifford stability class with the most stable condition F and the most unstable condition A. The result value of the A and F condition through simulation were shown not to cause citizens to die from acute effects due to radiological effects. The range of radioactivity is different according to the wind speed and the meteorological stability, and the degree of radioactivity dilution is different according to meteorological conditions. Analysis results are expected to be used for initial response in the event of a radioactive terrorist attack.

• Journal of the Society of Disaster Information
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• v.15 no.2
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• pp.301-311
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• 2019

Purpose and Method: In this study, a questionnaire interview survey was conducted for the victims living in the temporary house by the Pohang earthquake, and improvements were derived. Results: As a result, major improvements in terms of facilities are as follows. First, in order to expand the toilet and cooking space, the existing inner gate and the wall are removed and the width of the toilet is expanded. Minimize the inconvenience by adding a cooking table as wide as the extended toilet. Second, a separate sleep compartment is set up to secure storage space in a limited area. And the storage closet is installed below and used as a storage space. At this time, the size of the sleeping space is set to double bed size. Third, curtains and blinds are installed on both windows to secure privacy, thereby protecting privacy and psychological stability. Conclusion: If the remodeling of the temporary house proposed in this study is utilized and applied, it is possible to provide a better living environment. In addition, it is expected that it will be possible to improve the efficiency of space and overcome existing spatial limitations by minimizing inconveniences reflecting the needs of the victims.