• International Journal of Highway Engineering
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• v.6 no.2 s.20
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• pp.61-70
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• 2004

Cement treated Soil has superior characteristics as pavement-base including strength, curability, hardness, freezing resistance. However drying shrinkage of Cement treated base has been indicated as disadvantage, since reflection crack of surface layer is induced from drying shrinkage of cement treated base. This study propriety about low-shrinkage cement treated base that can control shrinkage of cement and control reflection crack at asphalt overlay & concrete slab.

• Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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• v.10
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• pp.67-95
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• 2004

In diesel Albeit wird belegt, dass sich die Entstehung des Germanischen nicht als organische, $ausschlie{\ss}lich$ intern motivierte Weiterentwicklung des $Indoeurop\"{a}ischen$ verstehen $l\"{a}sst$, sondern dass substraie und superstrale Kontaktsprachen, bzw. Kontakt-sprachfamilien an seiner Entstehung beteiligt waren, namlich das mitl dem heutigen Baskischen verwandte Vaskonische und das mit dem heutigen Hamito-Semitischen verwandte Atlantische. Als Beweise $f\"{u}r$ $nicht-indoeurop\"{a}ische$ Kontakte des $Indoeurop\"{a}ischen$ werden $angef\"{u}hrt$ die Lexik und Strukturmerkmale der Ortsnamen, der $gro{\ss}e$ nicht aus dem Indoeuropaischen deutbare Anteil des Wortschatzes, der Initialakzent, die Systematisierung des Ablauts in starken Verben und die Spaltung der Wortstellung. Dabei wird deutlich, dass das Germanische ist substral vaskonisiertes, superstral semitisiertes $Indoeurop\"{a}isch$ ist.

• Journal of The Korean Society of Agricultural Engineers
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• v.52 no.3
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• pp.105-111
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• 2010

It is very important to select carefully backfill materials and build for the structural integrity of abutment in bridge. In general, backfill materials of unbound crushed stones (SB-1) are used to provide the safety of abutment structure and to reduce differential settlement around abutment that is significantly related with performance of road pavement under working conditions. In this study, to evaluate the compatibility of backfill materials at abutment and to develop the abutment design program, i) basic properties of subgrade soils in Korea, ii) evaluation of deformational characteristics of backfill materials from RC/TS tests, cyclic TX tests and Creep tests were accomplished.

• Journal of the Korean Society of Clothing and Textiles
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• v.16 no.2
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• pp.169-180
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• 1992

The purpose of this study is to investigate the effects of type of clothing microclimate and exercise condition on ventilation. The experimental system employed a trace gas technique of the previous research. Clothing microclimate volume measurement was based on the substitution water technique for inter-clothing air volume. The experimental variables were tested at four levels of clothing microclimate spacing, microclimate shape of the previous research and two levels of exercise conditions. 2, 4, 6 cm ease were added to B/2+4 of basic blouse pattern for the microclimate spacing variable. Each combination of three variables were tested in triplicate. Analysis of variance of experimental variables on vetilation, such as oxygen exchange rate, half time of first order model was conducted. Oxygen exchange rate and half time of first order model are affected by the shape of microclimate air and exercise condition.

• Magazine of the Korean Society of Agricultural Engineers
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• v.41 no.1
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• pp.79-85
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• 1999

Use of soils with crushed expanded polystyrene(EPS) satisfied both recycling of industrial waste and development of new light-weight fill materials. Objectives of the study were to make the mixed the mixed soils with the crushed EPS and to suggest the most rational mixing ration as a fill material. A series of laboratory tests was performed to investigate the relationship between miximum dry density and optimum moisture contenr and to find the variation of CBR for mixtures with 3 soils and 2 sizes of the crushed EPS. Results of the test showed that the sizes fo the curshed EPS had a little effect on the properties of mixed soils. But gradatiion of soils and mixing ration with the crushed EPS were important factors to characterize compaction properties of the mixed soils.

• Magazine of the Korea Concrete Institute
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• v.13 no.1
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• pp.66-72
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• 2001

지구 온난화, 천연 자원의 고갈, 처분 장소의 핍박 등 환경문제가 사회적인 문제로 대두되고 있다. 특히 건설분야에서 천연산 골재의 부족은 매우 심각한 상황에 있으며, 이를 해결하기 위해 재생골재의 재활용 등 많은 연구가 이루어져 1999년도에는 아스팔트 콘크리트용 재생골재(KS F 2572), 콘크리트용 재생골재(KS F 2573), 도로기층용 재생골재(KS F 2574)에 대한 규격을 제정함으로써 실용화의 단계에까지 이르고 있다 그러나 제철소의 제강 및 정련 공정상에서 발생하는 철강슬래그를 콘크리트용 골재로서 활용하기 위한 국내의 연구는 몇몇 연구자들에 의해서만 이루어지고 있어 초기 단계에 있다고 할 수 있다. 이에 본고에서는 콘크리트용 천연산 골재의 대체 재료로서 각종 철강슬래그의 적극적인 재활용을 도모하기 위해 최근 슬래그를 골재로서 사용하기 위해서 연구한 결과 및 실례를 수록한 문헌을 조사 검토하여 슬래그 골재의 특성에 대하여 소개하고자 한다.

• Journal of the Korean Professional Engineers Association
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• v.12 no.4
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• pp.26-31
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• 1979

The Natural Gas and petroleum have the same Origin, Namely, Ocean bottom deposits of the marine plant, plankton which are subdued to the biological action of the bacterium under the anaerobic circumstance, and changed to the hydrocarbon gas and oils. and such resources are appeared in the aqueous sedimentary rocks in the tertiary. There are three types of gas field, which are oil well gas field, structural gas field and water soluble gas field.

• Journal of Chest Surgery
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• v.34 no.10
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• pp.800-804
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• 2001

The intractable pneumothorax with continuous air leakage, emphysematous lung and high operative risk treated by selective bronchial occlusion has been seldomly reported abroad. The bronchus responsible for air leakage was occluded with such materials as fibrin glue, gelatin sponge and oxidized regenerated cellulose(surgicel). We performed selective bronchial occlusion by flexible fiberoptic bronchoscopy with gelfoam in two cases. There was no complication after the procedure; therefore, we report the treatment for intractable pneumo- thorax by bronchoscopy with gelfoam packing.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.4D
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• pp.609-615
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• 2006

Crack and seat method has been used in United States to prevent reflection cracks of overlay that may be caused by excessive movement at discontinuity of old concrete pavement. This method provide optium space of discontinuity by generating additional discontinuity in old concrete pavement. In this study the effect of various factors on the performance such as IRI and distress at after applying crack and seat method were investigated by using LTPP data.

• Journal of the Daesoon Academy of Sciences
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• v.1
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• pp.445-462
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• 1996

본 연구는 대순진리회의 종교 사상에서 제시하는 바람직한 인간 관념인 인존사상을 통하여 그것이 내포하고 있는 교육적 가치성을 제고하는데 있다. 또한 본 연구는 대순사상 자체가 가지는 학문적 의의를 밝히고 그것의 교육학적 해석을 통하여 그 학문적 영역의 저변을 확대하는데에도 의미가 있다고 하겠다. 근세 조선후기사회의 종교·문화적 배경을 검토함으로써 대순사상이 당시대의 기층 민중들에게 어떠한 종교적 메시지를 전달하고 있는가를 살피고 또한 그 기본구조를 분석하여 대순사상이 제시하는 종교적 구도를 개념화 하고자 한다. 이러한 연구의 패러다임 위에서 대순사상이 지향하는 교육이념을 중심으로, 교육적 이상 실현의 가능성을 지닌 내재적 존재로서의 인존의 형성이론을 고구하여 교육적 인간상의 이상적인 모델을 확인한다. 또한 인존사상에서 표방하는 교육적 시사성이 현대 교육의 제문제에 어떠한 비전을 제시하고 있는지를 검토해 보고자 한다.