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유정훈,최정윤 도시정책학회 2010 도시부동산연구 Vol.1 No.2
A concept of T-Hub to integrate multimodal transfer facility with urban multi-dimensional complex space is proposed by considering urban transport and activity systems. T-Hub provides a central space to support transport mobility and the complex nature of daily urban activities. An alternative site in Seoul Metropolitan Area is selected to analyze the applicability of T-Hub to realize the integration of transport and urban activity systems by providing the effective and amiable environment. The study also suggests the key planning concepts for the T-Hub proposed in Samsung-dong.
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유정훈,박인수,Yoo, Jeong-Hoon,Park, In-Soo 대한건축사협회 2010 建築士 Vol.2010 No.7
안우성 건축사는 착실히 기본기를 다진 건축사로 보여졌다. 그의 수련 과정과 관심분야를 보면 매우 견고한 과정을 거쳤고, 실용적인 설계에 능함을 알 수 있었다. 현재의 안건축사와 온고당은 그런 기반 하에 자리잡을 것으로 여겨졌다. 지금도 매우 다양한 프로젝트와 다양한 분야에서 활동하고 있는데, 앞으로의 활동이 더욱 기대된다 하겠다. 앞으로도 더욱 좋은 건축을 많이 하길 기대한다.
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공간적 접근성 및 통행비용을 고려한 천연가스 충전소 최적 입지선정 모형
유정훈,이무영,오세창 대한교통학회 2008 대한교통학회지 Vol.26 No.3
본 연구에서는 천연가스버스 충전소 위치 선정의 객관성과 효율성을 확보하기 위한 노력의 일환으로 공간적 접근성과 통행 비용을 고려한 천연가스 충전소 입지선정 모형을 개발하였다. 본 연구에서 제시한 충전소 입지선정 모형은 고정식 충전소를 대상으로 하였으며, 2단계로 구성되었다. 1단계에서는 천연가스버스의 노선 기종점으로부터 이동거리 제약조건을 만족하는 충전소 입지 대안들을 Heuristic Algorithm을 통해 선정하였으며, 모형의 2단계에서는 변형된 Transportation Problem을 이용하여 충전소 입지대안별 최소 통행비용을 산출하고 이를 충전소의 설치 및 운영비용과 비교분석하여 충전소 최적 입지대안을 도출하였다. 본 모형의 적용가능성 분석을 위해 수도권내의 대표적 중소도시인 안양시를 대상으로 하여 천연가스버스 수요량에 따른 충전소의 입지와 규모를 산출하였다. 본 연구를 통해 객관적이고 합리적인 천연가스 충전소 입지선정 방법론의 기틀을 제시함으로써 향후 천연가스버스의 원활한 보급에 기여할 수 있을 것으로 판단된다. This study proposes a facility location model in consideration of spatial coverage and travel cost as an effort to make objective and effective decisions of natural gas filling stations. The proposed model is developed for fixed stations and consists of two stages. The first stage employs a heuristic algorithm to find a set of locations which satisfy the spatial coverage constraints determined by the maximum travel distance between the filling stations and bus depots. In the second stage, the optimal location of filling stations is determined based on the minimum travel cost estimated by using a modified transportation problem as well as the construction and maintenance costs of the filling stations. The applicability of the model is analyzed through finding the optimal location of filling stations for the city of Anyang, a typical medium-sized city in metropolitan Seoul, based on the demand of natural gas buses. This study is expected to help promote the spread of natural gas buses by providing a starting point of a objective and reasonable methodological perspective to address the filling station location problem.
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유정훈,윤종호,김성걸,이장무 한국소음진동공학회 1995 소음 진동 Vol.5 No.3
A new automatic diagnostic system for predicting multiple defects in rolling element bearings is developed by taking probbability into account. A database is constructed from the frequency characteristics of tested bearings with various types of defects. The proposed algorithms for the automatic diagnosis of bearing defects are shown to be satisfactory through the experiments. This method can be effectively used for quality control of the rolling bearing in plants.
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유정훈 대한흉부심장혈관외과학회 1992 Journal of Chest Surgery (J Chest Surg) Vol.25 No.6
Recently we have experienced one case of long tracheal stenosis which developed after pulmonary tuberculosis. The patient was 32 years old woman, 165cm in height. She complained severe dyspnea and headache. We could hear the inspiratory wheezing sound and stridor without stethoscope. Preoperative tracheogram and chest CT scan showed long tracheal stenosis from the posterior portion of clavicular head to the upper portion of carina and right main bronchus. Under the general anesthesia, the stenotic segment, about 7.5cm, was resected and end to and anastomosis was performed successfully through the right anterolateral thoracotomy and supraclavicular collar incision. Her postoperative course was uneventful and the patient has remained well till now.
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유정훈 대한흉부심장혈관외과학회 1992 Journal of Chest Surgery (J Chest Surg) Vol.25 No.11
We experienced 5 cases of tracheal stenosis and 7 cases bronchial stenosis treated surgically at the Department of Thoracic and Cardiovascular Surgery, School of Medicine, Hanyang University during 5 years. The causes of tracheal stenosis were prolonged endotracheal intubation 1 case, tracheostomy 1 case, the sequela of endobronchial tuberculosis 2 cases and tracheomalacia 1 case. The causes of bronchial stenosis were all endobronchial tuberculosis. The managements of tracheal stenosis were tracheal resection and end to end anastomosis. The resected lengths of trachea were 1.5cm, 3cm and 7.5cm. One case of suglottic stenosis was underwent the resection of trachea, 8cm in length, and the laryngotracheal anastomosis was done, but the re-stenosis of trachea was developed after 4 weeks post-operatively. One case of tracheomalacia was done permanent tracheostomy only, because the entire trachea was adhered to the surrounding tissue. The managements of bronchial stenosis were resection of involved lobe or one lung, in the 5 case. One case with Lt. main bronchial stenosis and atelectasis of Lt. upper lobe was done the lobectomy of Lt. upper lobe only and then, the Lt. pneumonectomy was done re-operatively because the atelectasis of Lt. lower lobe had continued. The other one case with stenosis of Rt. main bronchus, failed the insertion of metalic stent, was underwent the Rt. upper lobe lobectomy, sleeve resection and side to end anastomosis
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흉부외과 질환의 진단시 FNAB 의 유용성과 객담세포검사 및 기관지 내시경 검사와의 비교 고찰
유정훈 대한흉부심장혈관외과학회 1990 Journal of Chest Surgery (J Chest Surg) Vol.23 No.6
From March 1986 to June 1990, the percutaneous Fine Needle Aspiration Biopsy[FNAB] of 102 thoracic lesions were performed with Westcott needle [slotted 20G or 22G thin needle], for the purpose of identifying and diagnosing thoracic lesions. There were 94 lung lesions [67 malignant tumors, 27 benign lesions] and 8 mediastinal and chest wall lesions. The results of FNAB were compared with sputum cytology and bronchoscopic examinations. The sputum cytologic examinations were performed in 54 cases of malignant lung tumor and the malignant cell was found at the 18 cases [33%]. We bronchoscopic examinations were performed in 24 cases and the malignant cell was found at the 12 cases [55%]. The positive diagnostic rate of malignancy was 100% by FNAB. Among them, 55 cases [82%] were diagnosed by cytologic examinations and 43 cases[64%] by both. The specific diagnoses for benign lung lesions in 15 cases[55%] and for mediastinal and chest well lesions in 5 cases[62%]. The 7 patients[6.9%] developed the pneumothorax and 5 of them required the treatment. Therefore, the FNAB of thoracic lesions may be a preferred diagnostic method because of its safety, simplicity and accuracy.
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