• KIEAE Journal
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• 제8권1호
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• pp.71-79
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• 2008

Lower birth rate and higher elder people are serious social problem in Korea. In 2003, the total birth rate is 1.19 per person, that record is lowest among OECD country. In 2005, Korea has been the aging society with 9.0% in aged population rate. Increasing of aged population results in elder estrangement and confliction with other generations. The social problem can be solved in some degree by improving housing environment and many kinds of welfare program. This study suggests a solution of the problem by applying community space located on ground level floor. The ground level floor of apartment has many physical benefits like connection to the earth, extension, safeness for the aged and child. in case of the National Rental apartment, small residential area and high rate of elder, child, the disabled make the ground level floor useful space for community. According to case study, almost the National Rental apartment hasn't enough facilities supporting various generations and don't supply comfortable environment. So, this study presents how to design the National Rental Apartment's community space located on ground level floor.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 추계 학술발표회
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• pp.1259-1267
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• 2008

One of the most important item for insuring the stability of ground in urban deep excavation site near by major structure such as subway is displacement control of earth retaining wall. The field monitoring system is classified by two types as manual system and automatic system. The application case of latter type of field monitoring is increased because real time measurement is possible in automatic system and that is correspondent with the recent constructional trend. Though the automatic monitoring system is more useful and advanced than manual monitoring system, accuracy of the system is not verified sufficiently. It was examined that the reliance of automatic monitoring system in this paper through the comparison of monitoring result obtained one of deep urban excavation site in which the each type of monitoring system was executed concurrently. Result of the examination is that the two types of monitoring system is generally alike in view of monitoring result, so the engineering reliance of automatic system was confirmed in case site. This study was researched in restricted one case site, so it is expected more precise analysis from security of more data monitored and progressive study.

• 동아시아식생활학회지
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• 제9권2호
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• pp.230-244
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• 1999

1) Table salt (=NaCl=common salt=salt) is scientifically characterized, and the significant role in dietary and daily life has generally been discussed from the standpoint of human ecology. 2) In dietary life, salt fundamentally gives a deliciousness to dishes and nutro-physiologically functions to keep homeostasis in the body. Meanwhile, the excessive intake of salt often causes the high blood pressure and induces several fatal diseases. 3) In daily life, salt derivatives(Na-, Cl-compound) are quite useful widely over food, clothing and housing. Meanwhile, some of them especially organochlorine compounds often pollute the environment and damage the humans and or ecology as so-called environmental hormone resulting in dioxins. 4) For the ambivalence of salt in health and environment, humans, but not salt, are wholly responsible. The fact would go not only to salt but also generally to resources on the earth. 5) Humans should adequately be moderate in utilizations and consumptions of salt and or resources. Everything must be kept with in bounds. This conception would surely bring the stable maintenance and the sound development to the system of human ecology as well as global ecology.

• 영어영문학
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• 제55권6호
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• pp.975-992
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• 2009

Whereas many Dickinson scholars tend to focus on Emily Dickinson's anthropocentric dimension, her work also reveals an ecocentric aspect. On the one hand, influenced by New England Puritan typology and its offshoot Emersonian Transcendentalist idealism, Dickinson reveals her indebtedness to these two worldviews by emphasizing the invisible over the visible and the spiritual over the physical. At times, she reflects the common thread of the two outlooks-a hierarchical thinking, in which nature is inferior to human beings and does not have its own identity outside of human use. On the other hand, seeing through the downside of the hierarchical Emersonian idealism, Dickinson sometimes suggests an alternative stance on nature in a nonhierarchical way. She often appreciates nature for its own sake, becoming its neighbor and companion. This aligns Dickinson with modern ecocritics and ecofeminists who criticize a hierarchical anthropocentrism and promote an egalitarian ecocentrism in which natural and human beings are fellow citizens of the earth community. And yet, unlike most ecocritics who advocate a complete shift to an egalitarian paradigm, Dickinson embraces both anthropocentrism and ecocentrism in her poetry of "open portfolio." This openness stems from her belief in interrelatedness between God, nature, and human beings. Housing the two opposing perspectives in her poetry, she widely opens the possibility to choose the better way to relate to our sister and brother, nature.

• 한국지반공학회논문집
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• 제25권10호
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• pp.111-122
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• 2009

지반에 포함된 입자의 용해작용은 흙의 강도를 저하시키고, 지하구조물의 침하를 발생시킨다. 본 논문에서는 입자용해시 혼합재의 물리적 특성 변화를 조사하고자 하였다. 침하량 측정과 전단파 측정과 같은 거시적 반응을 평가하기 위해, 소금과 모래로 구성된 혼합재를 사용하였다. 또한, 광탄성(photoelastic) 디스크와 얼음 디스크 혼합재를 이용하여 힘 연결고리(force chain), 간극, 접촉점수(coordination number), 그리고 수평력 변화와 같은 미시적 거동을 분석하였다. 소금-모래 혼합재에서 전단파는 압밀셀에 설치된 다단의 벤더 엘리먼트로 측정되었고, 광탄성 디스크-얼음 디스크 혼합재의 역학적 거동은 로드셀과 디지털 이미지를 이용하여 분석되었다. 실험결과, 소금의 용해시 전단파 속도는 초기에는 감소한 후에 증가한 후 일정한 값으로 수렴하였다. 용해가능 입자의 크기가 커질수록 그리고 입자패킹이 불규칙해질수록 입자용해시 수평력의 변화가 더 커지는 것을 알 수 있었다. 용해 후, 간극비는 증가했고, 접촉점수는 감소하였다. 본 연구에서는 힘 연결고리, 간극비, 접촉점수와 같은 입자의 거동변화가 전단파 속도와 전체시스템의 수평력 변화 같은 전체적인 거동에 영향을 주는 것으로 나타났다.

• 한국축산시설환경학회지
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• 제1권1호
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• pp.9-19
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• 1995

This study was carried out to investigate the effect of sawdust bedding barn on manure handing, management labour and physiological aspect of dairy cows, and then to establish the criteria on the optimum utilization method of sawdust bedding barn. 46 tie stall barns and 49 sawdust bedding barns were surveyed to cmopare the milk productivity between two different barns, and also 5 tie stall barns, 15 sawdust bedding barns and 1 rice hull bedding barn were selected to study the utilization situation of sawdust barn in Kyung-Ki province area. The major results obtained were as follows; 1. The roof material of sawdust barn were consisted of 66% vinyl house, 23% PVC light and 11% slate and galvanum coated tin. Most of the floor structure was earth ground with the rate of the approximately 82%. 2. The average occupied area of sawdust bed per cow was 15.2 $m^2$, depth that 30 cm and the utilization period was 12 months. 3. Milk Yield was significantly higher at sawdust barn than at tie stall barn(P<0.01). Bacterial and somatic cell count in raw milk were less at the sawdust barn than in tie stall barn. However, there was not significance difference between two barns. 4. The labour hour needed to cow management in the sawdust barn was approximately 48% of that of tie stall barn. 5. The temperature and moisture content measured in sawdust bed were closely affected by seasonal ambient temperature. The skin and hair of cow were much cleaner at the PVC light roofed sawdust barn than any other roof materials. 6. The additives used for improving of fermentation did not show any effect on temperature and moisture content in sawdust bed. When the ambient temperature was $30.4^{\circ}C$, the surface temperature of measured 1 cm above the sawdust bed was $12.2^{\circ}C$ lower and the temperature of 100 cm above the sawdust bed was $2.4^{\circ}C lower under shading net facility than that of vinyl roofed one.7. The hoof length of miking cow was 7.95 cm in tie stall and 9.19 cm in sawdust barn with high significance (P<0.01). And disease occurence such as mastitis and foot-rot tended to decrease in the sawdust barn. 8. The number of total bacteria and coliform bacteria were less in the sawdust bed compared with earth ground resting area. And a parasite strongyloides papillosus was detected but without any infected cow. 9. The nitrate($NO_3N$) content in non-roofed earth ground resting area and earth ground under the sawdust bed was likely to pollute the ground water. 10. In economic point of view, rice hull bedding barn was the cheapest among different systems. And in the sawdust bedding barn PVC light + slate roofed barn was most desirable, and vinyl roofed one the least.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2003년도 사면안정학술발표회
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• pp.65-81
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• 2003

During the last few decades in Korea, the development of hillside or mountain areas has rapidly increased for infrastructure construction such as railroads, highways and housing. Many landslides have occurred during these constructions. Also, the amount and scale of damage caused by landslides have increased every year. In the case of Far East Asia including Korea, the damage of landslides is consequently reported during the wet season. In this paper, the effect of stabilizing piles on slope stability is checked and the behavior of slope soil and piles are observed throughout the year by field measurements in the large-scale cut slopes. In particular a large-scale cut slope situated on the construction site for the express highway in Donghae, Korea. First of all, The behavior of the slope soil was measured by inclinometers during slope modification. Landslides occurred in this area due to the soil cutting for slope modification. The horizontal deformations of slope soil gradually increased and rapidly decreased at depth of sliding surface indicating that the depth of sliding surface below the ground surface can be predicted. On the basis of being able to predict the depth of the sliding surface, stabilizing piles were designed and constructed in this slope. To ensure the stability of the reinforced slope using stabilizing piles, an instrumentation system was installed. The maximum deflection of piles is measured at the pile head and it is noted that the piles deform like deflection on a cantilever beam. The maximum bending stress of piles is measured at the soil layer. The pile above the soil layer is subjected to lateral earth pressure due to driving force of the slope, while pile below soil layer is subjected to subgrade reaction against pile deflection. As a result of research, the effect and applicability of stabilizing piles in large-scale cut slopes could be confirmed sufficiently.

• 한국전자통신학회논문지
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• 제9권1호
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• pp.105-110
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• 2014

현재 한국은 노후건축물에 내진시설이 없고 재해방지시설도 최근 발생되고 있는 기상변화를 반영하지 못하여 자연재해로 인한 피해를 적절하게 대응하는데 한계가 있다. 따라서 향후 발생할 수 있는 재해에 효율적으로 대응하기 위해서 재해발생가능성과 재해방지를 위한 기반시설 현황 등을 고려하여 취약지구를 선별할 필요가 있다. 이를 위해서 최근 정부에서는 관계 기관들의 참여하에 재해방지를 위한 DB 연계협의회를 구성하고 통합DB를 구축 중에 있다. 하지만 지방자치단체들이 DB구축에 필요한 기초 데이터를 적절히 제공하지 못해 사업이 지연되고 있으므로 이에 인력과 재정적 지원이 필요할 것으로 판단된다.

• 한국재난정보학회 논문집
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• 제13권1호
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• pp.15-25
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• 2017

19세기 후반 이후 온실가스의 과도한 배출로 인하여 지구의 연평균 기온이 상승하여 폭우, 폭설과 같은 이상기후 현상이 전 세계적으로 빈번하게 증가하고 있다. 또한 고도의 경제성장으로 인구가 밀집되어 있는 도시지역에서는 화재, 테러 등의 사고가 발생할 경우 심각한 재산 및 인명피해가 발생할 수 있다. 본 연구에서는 이와 같은 재난재해에 의하여 발생하는 이재민들을 보호할 수 있는 대피시설이 필요하며 이들을 보호할 수 있는 적정 수용면적을 제안하고자 한다. 우리나라 국민안전처에서 1인당 수용면적을 $3.3m^2$으로 지정하였지만 그 기준의 설정 근거에 대해서는 명시되어 있지 않다. 따라서 국민안전처에서 명시된 1인당 수용면적 $3.3m^2$의 적합성을 고려하고 그 후에 다양한 기준정립을 감안하여 1인당 적정 수용면적에 대해 제시하고자 한다.

• 한국물환경학회지
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• 제36권3호
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• pp.206-219
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• 2020

As urbanization and impermeable areas have increased, stormwater and non-point pollutants entering the stream have increased. Additionally, in the case of the old town comprising a combined sewer pipe system, there is a problem of stream water pollution caused by the combined sewer overflow. To resolve this problem, many cities globally are pursuing an environmentally friendly low impact development strategy that can infiltrate, evaporate, and store rainwater. This study analyzed the expected effects and efficiency when the LID facility was installed as a measure to improve hydrologic cycle and water quality in the Oncheon stream in Busan. The EPA-SWMM, previously calibrated for hydrological and water quality parameters, was used, and standard parameters of the LID facilities supported by the EPA-SWMM were set. Benchmarking the green infrastructure plan in New York City, USA, has created various installation scenarios for the LID facilities in the Oncheon stream drainage area. The installation and maintenance cost of the LID facility for scenarios were estimated, and the effect of each LID facility was analyzed through a long-term EPA-SWMM simulation. Among the applied LID facilities, the infiltration trench showed the best effect, and the bio-retention cell and permeable pavement system followed. Conversely, in terms of cost-efficiency, the permeable pavement systems showed the best efficiency, followed by the infiltration trenches and bio-retention cells.