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자연경관에 도입되는 건축물의 경관민감도 측정에 관한 연구
신지훈,최원빈,신민지,Shin, Ji-Hoon,Choi, Won-Bin,Shin, Min-Ji 한국농촌계획학회 2018 농촌계획 Vol.24 No.2
As high-rise buildings came in, the landscape of rural areas and natural landscapes often got damaged. Therefore, this study aims to prevent this, grasp the extent of the influence of the surrounding landscape, to grasp the range of height that can be permitted and present the direction of landscape management of agriculture and natural landscape. This study tried to grasp the range of height by using price sensitivity analysis method for two apartment and apartment complex which entered DangJin city and SeoSan city. First, in the case of a two apartment, the range of the height allowable section was from the 6th floor to the 11th floor in close range view, and it was a section from the 7th floor to the 12th floor in medium range view. In the case of the apartment complex, the range of the height allowable range was from the 10th floor to the 17th floor in close range view, the 9th floor to the 16th floor in medium range view. The stress index was found to be positive in a two apartment in close range view, and in the apartment complex case. therefore it was better to set it to a lower in the Range of Acceptable Height(RAH). Second, it showed no difference in the sensitivity of landscape to gender. Thirdly, the results of the landscape sensitivity analysis of major and non-major showed the difference in the medium range view picture of the apartment complex. Majors are lower than the point of minimum height(PMinH) than non-Majors. In the case of major, the stress index was 1.4. it turned out that it was better to make a decision closer to point of minimum height (PMinH). In the case of non-major, the stress index was -1.3. it was also able to accept decision close to the point of maximum height (PMaxH). Since the results of the above research gave changes only in the variable of the height of the landscape, we can not grasp the point of interaction with other variables, and future research is considered necessary.
악성 기관지호흡기루와 기관지흉강루에 대한 인터벤션 치료
신지훈,김경래,김진형,송호영,Shin, Ji-Hoon,Kim, Kyung-Rae,Kim, Jin-Hyoung,Song, Ho-Young 대한기관식도과학회 2008 大韓氣管食道科學會誌 Vol.14 No.1
Malignant esophagorespiratory fistula is a devastating and life-threatening complication of esophageal and bronchogenic carcinomas. As a non-surgical treatment, peroral stent placement into the esophagus or airway can close-off the fistula and prevent progression of the pneumonia. Although reopening of the fistula is not uncommon despite stent placement, interventional treatment is effective for sealing off reopened ERFs. Bronchopleural fistula is a well-recognized complication of pneumonectomy. There have been several reports to occlude the fistula with use of stents and much more experience is required.
GPR 을 이용한 자갈궤도 파울링층 파악을 위한 실내실험적 접근
신지훈(Ji-hoon. Shin),최영태(Yeongtae. Choi),장승엽(Seung Yup. Jang) 한국철도학회 2016 한국철도학회 학술발표대회논문집 Vol.2016 No.5
자갈층의 열화(fouling)가 궤도틀림에 큰 영향을 미치는 것으로 알려져, 유지관리 합리화를 위하여, 열화층을 검측하기 위한 다양한 기법들이 개발, 적용되고 있다. 이 중, GPR(Ground Penetrating Radar)을 이용하여, 다양한 조건의 실내실험을 수행하여 자갈궤도의 파울링층 검토 가능성을 평가하였다. GPR의 적절한 주파수 대역은 900 MHz이상, 자갈층의 유전상수는 3으로 평가되었다. 깨끗한 자갈궤도의 경우, GPR로 강화노반과의 경계층을 비교적 정확하게 구별할 수 있었다. 실험실 조건에서 열화층(fouling layer)의 위치도 비교적 정확하게 검측 할 수 있었다. Ballast layer requires continuous maintenance. Fouling would be one of the causes that affect irregular settlement. Among various non-destructive methods to evaluate fouling level, GPR was chosen and evaluated through laboratory tests. Permittivity of clean ballast is calculated 3 and frequencies of 900 and 1600MHz were appropriate to detect reinforced soil layer. Fouled layer could be detected by both the frequency well.
초청총설 : 지속 가능한 블록 공중합체 기반 열가소성 탄성체
신지훈 ( Ji Hoon Shin ),김영운 ( Young Wun Kim ),김건중 ( Geon Joong Kim ) 한국공업화학회 2014 공업화학 Vol.25 No.2
ABA형태의 삼중블록공중합체는 고무상과 유리상의 상대적 성분에 좌우되는 열가소성 탄성체와 강화 플라스틱으로써 유용하다. 이러한 물질은 다른 고분자와 혼합하여 첨가제, 강화제, 상용화제로써 기능성을 줄 수 있다. 상업적으로 유용한 대부분의 블록 공중합체는 석유로부터 유래된다. 지구상의 유한한 화석자원 공급과 석유 사용 및 채굴에 관련된 경제, 환경적 비용을 고려하면 그 대안은 매력적이다. 이러한 흐름에 더하여 미래 지속 가능한 물질의 최종 용도를 위한 설계 및 그 실행이 요구되고 있다. 본 총설에서는 재생 가능한 ABA 형태의 삼중블록 공중합체 합성과 특성을 살펴보고, 특히 공중합체의 경성부분을 위한 높은 유리 전이온도 혹은 녹는점을 지닌 식물 유래 폴리올레핀과 다당류 유래 폴리락타이드와 공중합체의 연성부분을 위한 바이오 기반, 낮은 유리 전이온도, 무결정의 탄화수소계 고분자에 대해 논의하려고 한다. 이를 위해서 다양하게 제어된 고분자 중합법은 강력한 도구임이 증명되고 있다. 이러한 혼성 고분자의 정교한 합성에 관한 연구는 재생가능성, 생분해성, 고성능을 지닌 새로운 탄성체와 강화 플라스틱의 발전을 이끌고 있다. Block copolymers including ABA triblock architectures are useful as thermoplastic elastomers and toughened plastics depend-ing on the relative glassy and rubbery content. These materials can be blended with other polymers and utilized as additives, toughening agents, and compatibilizers. Most of commercially available block copolymers are derived from petroleum. Renewable alternatives are attractive considering the finite supply of fossil resources on earth and the overall economic and environmental expenses involved in the recovery and use of oil. Furthermore, tomorrow`s sustainable materials are demanding the design and implementation with programmed end-of-life. The present review focuses on the preparation and evaluation of new classes of renewable ABA triblock copolymers and also emphasizes on the use of carbohydrate-derived poly(lactide) or plant-based poly(olefins) having a high glass transition temperature and/or high melting temperature for the hard phase in addition to the use of bio-based amorphous hydrocarbon polymers with a low glass transition temperature for the soft components. The combination of multiple controlled polymerizations has proven to be a powerful approach. Precision-con-trolled synthesis of these hybrid macromolecules has led to the development of new elastomers and tough plastics offering renewability, biodegradability, and high performance.
경골 분절 골절 치료 시 다양한 정복술을 이용한 금속정 고정술의 결과
신지훈 ( Ji Hoon Shin ),손욱진 ( Oog Jin Shon ),하철웅 ( Chul Wung Ha ) 대한골절학회 2013 대한골절학회지 Vol.26 No.1
목적: 골수강 내 금속정을 이용한 경골 분절 골절 치료에서 다양한 술식을 이용한 임상적 결과에 대해 알아보았다. 대상 및 방법: 2003년 1월부터 2009년 6월까지 경골 분절 골절 환자 중 골수강 내 금속정을 이용하여 수술 후 1년 이상 추시 가능한 18예를 대상으로 하였다. 평균 추시 기간은 38개월(15-72개월)이었다. 골절 분류는 AO 분류 42C2.1 4예, 42C2.2 10예, 42C2.34예였다. 폐쇄성 골절이 10예, 개방성 골절은 8예였다. 수술 시 정복을 위한 다양한 술식을 이용하였고, 골유합 시기와 불유합 또는 부정유합 등의 합병증을 조사하였다. 결과: 지연유합으로 뼈이식이 필요한 경우가 3예였으나, 추후 전 예에서 골유합을 얻었다. 평균 골유합 기간은 16.3주(범위 12-21주)였다. 5도 이상의 각형성은 2예에서만 나타났고 평균 각변형 정도는 2.2°였다. 슬관절 운동범위는 129°, 족관절의 운동범위는 68°였으며 관절의 구축이나 25° 이상의 운동 범위의 감소는 관찰되지 않았다. 다른 합병증은 국소감염증 2예가 있었다. 결론: 금속정 삽입 시 부가적인 술식의 사용이 동반되면 경골 분절 골절에서 교합성 골수강 내 금속정을 이용한 치료는 높은 골유합률과 낮은 합병증, 만족할 정렬을 얻을 수 있을 것으로 생각된다. Purpose: We evaluated the clinical outcomes of tibia segmental fractures treated by intramedullary nailing using various reduction techniques. Materials and Methods: From January 2003 to June 2009, 18 segmental tibial fracture patients treated by intramedullary nail were enrolled with a minimum 12-month follow-up. The mean follow-up was 38 months (range 15-72). According to the AO classification, the fractures were types 42C2.1, 42C2.2, and 42C2.3 in four, ten, and four patients, respectively. Ten fractures were closed and eight were open. We used various techniques for reduction during operation and investigated bone union time and complication (non-union, malunion etc.). Results: Bone grafting was performed in three patients. Complete union was achieved in all patients. The mean time for union was 16.3 weeks (range 12-21), except in three delayed union patients. All radiological evaluations showed good alignment (less than 5 degree) except in two patients; and the mean deformity angle was 2.2 degree. Knee range of motion (ROM) was 129 degree, and ankle ROM was 68 degree. Local wound infection occurred in two patients. Conclusion: Intramedullary nailing is a successful method in the acute management of segmental tibial fractures, if accompanied by appropriate reduction technique.
농촌경관의 보전 및 개선을 위한 경관사업의 도입 방안 연구
신지훈 ( Ji Hoon Shin ) 한국농촌계획학회 2010 농촌계획 Vol.16 No.4
The purpose of this study is to introduce the landscape project for conservation and improvement of rural landscape. So, in this study, the current rural landscape policies and rural landscape planning are examined and the landscape project presented in Landscape Law is also examined. And this study propose the systemic application of the landscape project through the survey of experts related with the landscape project. The results are summarized as follows. Firstly, it is important that each landscape projects are unified for conserve and improve rural landscape. Secondly, it is necessary to define range, enforcement agency, and management agency of landscape projects. Thirdly, it is desirable that the landscape projects should be carried out as reviving the local economies. Comparing to the urban landscape plan, there are few rural landscape plans so far, so, it is difficult to applicate the system of the landscape project, but, continuous studies in this line can help the rural landscape plan to ensure practicality.
생태적 보전가치 평가를 통한 자연공원 계획에 관한 연구 -황매산 군립공원을 중심으로-
신지훈 ( Ji Hoon Shin ) 한국환경보건기술학회(구 한국환경복원녹화기술학회) 2010 한국환경복원기술학회지 Vol.13 No.5
This study is intend to evaluate natural conservation value, and to suggest natural park plan based on conservation value evaluation. In this study evaluation items are selected through related studies about ecological conservation evaluation, and evaluation items in this study can be classified into 2 aspects, ecological environment and topographic environment. After each evaluation items are overlaid with GIS program, management levels are derived from comprehensive overlaid maps of each evaluation items. Management areas can be classified into 5 levels; Critical Conservation Area, Conservation Area, Restoration Area, Passive Usable Area, Active Development Area and Settlement Area. So management areas can be matched each management levels to land use of natural park, that is district of preservation, district of natural environment, district of settlements and district of mass facilities. This study have good enough to evaluate ecological value for natural park plan, but, it is difficult to evaluate conservation value only with maps of each evaluation items, so it needs supplementary field survey for precise conservation value evaluation.