http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 이혁진 ( Lee Hyuk Jin ) (검색결과 249 건)
- 무료
- 기관 내 무료
- 유료
-
터널 내 수소연료 자동차의 수소 누설로 인한 수소 확산에 대한 수치해석 연구
안혁진(Hyuk Jin Ahn),정재혁(Jae Hyuk Jung),허남건(Nahmkeon Hur),이문규(Moon Kyu Lee),용기중(Geejoong Yong) 한국전산유체공학회 2010 한국전산유체공학회지 Vol.15 No.2
In the present study, a numerical simulation for the diffusion of hydrogen leakage of FCV(Fuel Cell Vehicle) in a tunnel was performed to aid the assessment of risk in case of leakage accident. The temporal and spatial distributions of the hydrogen concentration around FCV are predicted from the present numerical analyses. Flammable region of 4-74% and explosive region of 18-59% hydrogen by volume was identified from the present results. Factors influencing the diffusion of the hydrogen jet were examined to evaluate the effectiveness of tunnel ventilation system for relieving the accumulation of the leaked hydrogen gas. The distribution of the concentration of the leaked hydrogen for various cases can be used as a database in various applications for the hydrogen safety.
-
-
이혁진(Lee Hyuk-Jin),고형선(Koh Hyung-Seon),한용희(Han Yong-Hee),김홍택(Kim Hong-Taek) 대한토목학회 2006 대한토목학회논문집 C Vol.26 No.6
쏘일네일링공법은 굴착벽체나 사면을 안정화시키기 위한 보강공법으로서, 시공성과 경제성의 이점으로 인해서 그 사용량이 증가하고 있다. 그러나 쏘일네일링공법은 대지경계선 뒤쪽으로의 시공이 불가피하며 이는 대지점용료의 문제를 초래하게 된다. 이러한 이유로 제거식 쏘일네일링공법이 개발되었으나 제거식 쏘일네일의 제거율은 50 ~ 70% 정도 밖에 미치지 못하고 있다. 이러한 문제를 해결하기 위하여 제거가 불필요하고 대지경계선 뒤쪽의 삽입시 지주의 동의가 필요없는 섬유보강플라스틱(FRP) 쏘일네일이 개발되었다. 본 연구에서는 시험시공 및 인발시험과 같은 현장시험과 수치해석을 통하여 FRP 쏘일네일링 시스템의 안정성과 거동특성을 평가하였다. 그리고 다양한 지반조건에서 현장시험시공과 인발시험을 묘사하기 위한 수치해석(FLAC 2D)을 실시하였다. 본 연구결과, 제거식 쏘일네일링 시스템과 비교하여 FRP 쏘일네일링 시스템은 제거식 쏘일네일과 유사한 거동특성을 나타냈다. 따라서, FRP 쏘일네일의 사용성과 안정성이 사용하기에 충분한 것으로 나타났으며 기존의 제거식 쏘일네일에 대한 좋은 대안이 될 것으로 기대된다. Soil nailing is a reinforcement method used for stabilizing excavated walls or slopes. Due to its much advantages such as ease of construction and economical efficiency, use of soil nailing is increased. However, the soil nail has much disadvantages for use in urban area. The soil nail needs to be installed inevitably beyond private land boundary, which causes rent for use. For this reason, removable soil nailing system was developed. However, the removal rate of this system is just about 50?70%. To resolve this problem, the Fiber Reinforced Plastic (FRP) soil nailing system which does not need to be removed and allows for the installation beyond private land, is developed. In this paper, through theoretical and experimental studies in laboratory and field such as prototype tests, pullout tests, we evaluate the stability and behavior characteristics of the FRP soil nailing system. And, numerical analyses using FLAC2D were performed with respect to various soil conditions, where prototype test for excavation wall and pullout tests were carried out. As a result of this study, the FRP soil nailing systems show similar behavior characteristics with those of removable soil nailing system. Finally, considering the serviceability and mechanical stability of FRP soil nailing systems, it is enough to be used as a good alternative of general soil nailing system.
-
-
이혁진 ( Hyuk Jin Lee ),임근욱 ( Keun Uk Lim ) 한국사진지리학회 2011 한국사진지리학회지 Vol.21 No.1
본 연구는 사진을 이용하여 세계유산으로서 바르셀로나의 가우디 건축의 특징을 기술하는데 초점을 두었다. 안토니오 가우디는 세계에서 가장 중요한 근대적 스타일의 건축가로 그의 걸작 대부분을 바르셀로나에서 확인할 수 있다. 가우디는 스페인 카탈루냐 지방 출신의 건축가로 아르누보 양식이 유행한 시기에 모더니즘의 시각을 초월해 독특하고 독창적 디자인으로 창조해냈다. 그의 건축은 19세기 후반과 20세기 초반, 건축기술 발달에 크게 기여했으며, 스페인 바르셀로나에 중심을 둔 모데르니스모(Modernismo)와 같은 당시 문화와 예술 흐름과 관련된 중요한 가치의 변화를 나타내고 있다. 그의 작품은 건축뿐 아니라 정원, 조각 및 모든 장식예술에서 조화롭고 매우 개인적이면서 자유로운 스타일을 표현하고 있다. 그의 작품은 자연 형상에 영향을 받았으며, 곡선으로 구성된 돌, 구부러진 고철 조각품 및 유기적 형태를 이용하는 건축 특성을 반영한다. 그는 많은 건축을 모자이크 양식으로 배열된 색채 타일을 이용해 장식함으로써 다른 건축가들이 간과한 색채 이용의 의미를 강조했다. 그의 건축은 유네스코 문화 및 자연유산 보호협약에 의해 세계유산목록에 등재되어 있으며, 주요 작품은 카사비센스, 구엘저택, 구엘성지 납골당, 구엘공원, 카사바트요, 카시밀라 및 성가족성당 등이다. 본 연구는 가우디 작품세계 이해를 위한 자료와 바르셀로나 관광을 위한 안내 정보로 활용될 수 있다. This paper is focused on description of characteristics on Antoni Gaudi`s works in Barcelona by using geographic photographs. A. Gaudi was one of the most important modernist style architects worldwide. Many of his most extraordinary works are to be found in Barcelona. He was a Catalan Spanish architect who worked during the Modernist style(Art Nouveau) period but became famous for his unique and highly individualistic designs regarded as beyond the scope of Modernism. A. Gaudi`s works represent exceptional and outstanding creative contributions to the development of architecture and building technology in the late 19th and early 20th centuries. His works exhibit an important interchange of values closely associated with the cultural and artistic currents of his time, as represented in ``Modernisme`` of Catalonia in Spain. His works represent an eclectic, as well as a very personal, style which was given free reign in the design of gardens, sculpture and all decorative arts, as well as architecture. Also his works were greatly influenced by forms of nature and these are reflected by the use of curved construction stones, twisted iron sculptures, and organic-like forms which are traits of Gaudi`s Barcelona architecture. He also adorned many of his buildings with coloured tiles arranged in mosaic patterns. This added another important dimension to his buildings which is so often overlooked by architects-the use of colour. His Works were registered on UNESCO World Heitage List based on the Convention for the Protection of the World Cultural and Natural Heritage. The seven buildings are: Casa Vicens, Palau Guell, Cripta de la Colonia Guell, Parc Guell, Casa Batllo, Casa Mila, and Sagrada Familia in Barcelona. The Study can be used as a basic data for understanding on Gaudi`s architecture well as a guide for Korean travelers visiting Barcelona.
-
-
이혁진(Lee Hyuk Jin) 한국사진지리학회 1997 한국사진지리학회지 Vol.5 No.1
Angkor, the cradle of Cambodian culture and ancient capital of the Angkor dynasty is located in the Northwestern part of Cambodia. In 1992 tourism areas of Angkor was designated as one of cultural assets in the world. The purpose of this paper is to describe characteristics of cultural tourism areas in Angkor province using photograph. Their basic geographical and historical conditions have been analysed using literature review. The findings of this paper are summarized as follows. First, cultural remains in Angkor are composed of Roluos, Angkor Wat and Angkor Thom, Preah Khan, and Banteay Srei areas. But Angkor is widely known as Angkor Wat and Angkor Thom. Second, Angkor Wat is one of the most famous temples in Angkor and was constructed in the 12th century AD during the reign of King Suryavarman II. The temple is designed on the Hindu and Buddhistic concepts revolving around mountain Meru, the pivot of the world. The Sanctum sanctorum of Angkor Wat is situated at the top of the complex. The central Meru surrounded by 4 towers represents 4 cardinal directions raised high aboved 3 terraces. Religious continents are represented through enclosures separated by moats, symbolising the oceans: The temple has a powerful space to join the world of man to the world of the gods. Third, Angkor Thom was built as fortified city wall by Jayavarman VII. This is composed of Angkor Thorn Gates, Bayon Temple and Terrace of the Elephants. Angkor Thom is surrounded by 8m high wall containing 5 gates. Bayon is central temple of Angkor Thom and Terrace of the Elephants is located in old royal palace destroyed by war. Enormous faces surrounded by 4 sides are carved on the all Angkor Thom Gates and many towers of Bayon. It was supposed that faces were sculptured after the model of the Goddess of Mercy or Jayavarman VII. Fourth, Angkor Wat and Angkor Thom are living testimonies to ancient Khmer knowledge and skill, inspired by two great rulers. But Angkor wat and the other monuments in Angkor are examples of how vegetative growth and weathering can destroy monuments. The nearby temple of Ta Prohm, for example, is a frightening example of what could happen. These are the major hazards faced by ancient constructions and cultural tourism areas. Thus regular preventing of destruction by climate, vegetation, rain is essential. Finally, this paper is focused on description of characteristics of cultural tourism areas in Angkor. But from now the further studies on Cambodia shall be needed because it is important to propose fundamental data for students to research tourism fields and for tourists to travel this country.
-
밀폐공간에서 수소 누설로 인한 수소 제트 확산에 대한 수치해석
안혁진(Hyuk Jin Ahn),이상혁(Sang Hyuk Lee),허남건(Nahmkeon Hur),이문규(Moon Kyu Lee),용기중(Geejoong Yong) 한국전산유체공학회 2009 한국전산유체공학회 학술대회논문집 Vol.2009 No.4
In the present study, a numerical simulation for the diffusion of hydrogen jet in a enclosure was performed to aid the leakage lest of the hydrogen for the safety of the hydrogen vehicle. The temporal and spatial distributions of the hydrogen concentration in the test chamber are predicted from the present numerical analyses. Flammable region of 4-74% and explosive region of 18-59% hydrogen by volume was identified from the present results. Factors influencing the diffusion of the hydrogen jet were examined to evaluate tire effectiveness of forced ventilation for relieving the accumulation of the leaked hydrogen gas in the chamber, which include location of open windows, size of leakage nozzle, and leakage rate among others. The distribution of the concentration of the leaked hydrogen for various cases call be used as a database in various applications for tire hydrogen safety.
-
-
ScienceON
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
