Line Drawing Image의 처리와 벡터화 시스템

배석찬,이태헌,신성윤 群山大學校 1996 論文集 Vol.23 No.-

This paper proposes an approach to the segmentation, vectorization and representation of large-size line drawing images. The scaned digital image used to preprocessing and vectorization, resulting data was transffered CAD/CAM system. Processing step was noise removal, void filling, image segmentation, line thinning and contour extraction. Raster-to-vector conversion was performed by recognition and fitting of straight line segments, circles, arcs, and conic section. Experimental results are also shown

경기지역 정자의 입지 및 특성에 관한 연구

김동찬,김신원,박태석 경희대학교 디자인연구원 2006 예술· 디자인학연구 Vol.9 No.1

This study investigated the location and characterization of pavilion in Gyeonggi province. There weren't only a little literature about traditional pavilion in Gyeonggi province but also it's management and preservation by the government official and cultural center was not satisfactory. furthermore the rapid growth of economy and industrialization grew worse the situation. We had grasped the location of traditional pavilion in Gyeonggi province the present researched literature in comparison with 新增東國與地勝覽(recorded in 1531) and make a field investigation, and then we could have researched into 12 sorts of architectural characteristic and location. In result we could find another special feature of pavilion in Gyeonggi province from the product of compared and analyzed with Kyungsag·Jeolla province that traditional pavilion is most distributed.

Nortriptyline 제제의 생물학적 동등성에 관한 연구

신재국,차인준,장인진,정원석,김용식,박찬웅,신상구 大韓臨床藥理學會 1993 臨床藥理學會誌 Vol.1 No.1

복어중독에 의한 가사 상태에서 소생한 1예

송승찬,신진호,강석우,박경남,최호순,박근태,문희식,기춘석,이성희,윤병철,노우균,조균석,이민호 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3

Tetrodotoxin is a neurotoxin produced by about 90 species of puffer fish and causes paralysis of central nervous system and peripheral nerves by blocking the movement of all monovalent cation. Ingestion of tetrodotoxin produces clinical manifestations such as paresthesias(within 10-45 min), vomiting, lightheadedness, salivation, muscle twitching, dysphagia, difficulty in speaking, convulsion and death that expressed by cardiopulmonary arrest with loss of brain stem reflex sometimes. Tetrodotoxin prevents or delays ischemia induced neuronal death by way of following 3 mechanisms. Firstly, it reduces the energy demand of the brain tissues. Secondly, it delays or even prevents anoxic depolarization. Finally, it deminishes ischemia induced cell swelling and cerebral edema. We report a case of puffer fish poisoning which presented with cardiopulmonary arrest and loss of brain stem reflex, but completely recovered by aggressive cardiopulmonary resuscitation.

SOI 기판에 형성된 MOSFET의 특성 연구

한명석,이찬희,홍신남 한국항공대학교 1995 論文集 Vol.33 No.-

Thin film SOI 소자는 short channel effect 감소, subthreshold slop의 개선, 높은 이동도, 낮은 기생 캐패시터, latch-up현상이 없는 등의 여러가지 장점들을 가지고 있다. 이것이 ULSI에 대해 실현 가능한 기술이 된 것은 최근에 발달된 양질의 thin film SOI 기관 제작기술에 기인한 것이다. 그렇지만 current kink와 early breakdown 같은 floating body effect와 source/drain 저항의 증가라는 두가지의 큰 문제점을 가지고 있다. 본 연구에서는 concave 구조를 가지는 SOI MOSFET 형태를 통해 문제를 풀어보고자 하였다. 제안된 concave SOI 구조는 항복전압을 높이고 드레인 영역에서의 전계를 감소시켜 kink 현상의 원인이 되는 impact ionization이 발생할 확률을 줄이는 결과를 얻을 수 있었다. Thin-film SOR(Silicon-On-Insulator) devices offer unique advantages such as reduction in short channel effects, improvement of subthreshold slope, higher mobility, low parasitic capacitance, latch-up free natere, and so on. This is available technology for ULSI due to recent advances in high quality thin film SOI process technology. However, Thin film SOI devices have several problems-floating body effects, current kink, early breakdown effects, increase in parasitic source/drain resistances. In this paper, a SOI MOSFET with concave structure is analyzed for a sub-half micron regime to solve the above problems. Proposed concave SOI structure showed the increased breakdown voltage and the decreased impact ionization due to the lower electric field near the drain region.

교정용 고무 링의 삽입과 임시 전장관의 수정을 통한 보철 수복 전 인접면 공간 획득: 증례보고

신한얼,노병덕,신유석,이찬영 大韓齒科保存學會 2012 Restorative Dentistry & Endodontics Vol.37 No.2

Proximal caries or coronal defect in posterior teeth may result in the loss of proximal space and drifting of neighboring teeth, which makes restoration difficult. Inability to restore proper contours and to align tooth axis properly are commonly encountered problems when planning tooth restoration. Moreover, tilted teeth aggravate periodontal tissue breakdown, such as pseudo-pocket, and angular osseous defect. The purpose of this case presentation is to describe a simple technique for inducing minor tooth movement with orthodontic separating ring and provisional restoration modification. This method was used to create crown placement space on mesially tilted molar. This method is easy, simple and efficient technique which could be used in interproximal space gaining in selected situation.

곁순의 화학적 방제가 연초식물의 생장량에 미치는 영향

이재흥,석영선,신주식,정찬문 충북대학교 엽연초연구소 2001 煙草硏究 Vol.18 No.-

This study was carried out to compare the effects of suckercides - Fatty alcohol(FA), Maleic hydrazide(MH) and Butralin - on the sucker control and growing characters of flue-cured tobacco leaves. Among the three suckercides, Butralin was treated at three different times, one day before topping, topping day and one day after topping, and at two different concentration, 1/30 and 1/60 water solution. The results are summarized as follows. Suckercide treated plot showed higher growth and weight of upper leaves than not-treated plots did. MH treated plot decreased numbers, fresh weight and dry weight of suckers compared to the other treated plots, and made the leaves shape narrow. The effect of Butralin on sucker control was lower than that of MH, but higher than that of FA. The yields when treated Butralin decreased compared to the yields when treated MH. Though there were no significant differences of yields and growing characters of leaves among the plots of three concentrations and two times of treating Butralin, it is recommended to apply 1/60 water solution of Butralin at topping time.

횡문근 융해증의 Tc-99m Methylene Diphosphonate 신티그라피 소견

한창진,박찬희,윤석남,배문선,김수지,신규설 아주대학교 1997 아주의학 Vol.2 No.2

Many causes of rhabdomyolysis have been reported in the literature. Technetium-99m methylene dipho-sphonate (Tc-99m MDP) bone scintigraphy is considered to be the most sensitive and effective modality in defining the extents of disease involvement and follow-up of patients with rhabdomyolysis. In this paper, we reviewed two cases of generalized rhabdomyolysis related to seizure activities and two cases of localized rhabdomyolysis related to an excessive exercise. In addition other causes of rhabdomyolysis and possible mechanisrns of Tc-99m MDP uptake are discussed briefly.

균열크기 측정기법 개발에 관한 연구

남민우,조찬희,정한섭,김홍덕,신기석 한국비파괴검사학회 2004 학술대회 논문집 Vol.- No.-

본 연구는 증기발생기 건전성 향상기술 개발 과제 일환으로 진행중인 고리 1호기 구 증기발생기 인출 전열관을 대상으로 하는 Round Robin Test의 사전 시험을 위해 수행하였다. 균열결함에 대한 검출 및 크기측정의 기준을 설정하기 위해 SGMP Mock-Up를 제작하였고 신호수집한 Data를 증기발생기 전열관 가동중검사 업무를 수행하고 있는 와전류신호평가자들 4개조가신호평가에 참여하였으며, 그 결과를 요약 정리하였다. 본 연구에서 SGMP Mock-Up Data Crack Sizing의 목적은 고리 1호기 구 증기발생기 전열관을 대상으로 시행될 Round Robin Test 전에 결함 기구별 균열결함의 특성 이해 및 균열결함이 여러 유형의 외부 환경에서 나타나고 있을 때의 균열결함에 대한 정량적인 크기 측정값의 바람직한 모델 적용을 확인하기 위함이다. SGMP Mock-Up에 적용한 와전류검사는 Robbin 및 MRPC 검사를 포함하였다. 본 연구의 주 목적인 MRPC 데이터를 이용한 균열깊이 평가에 2개조는 위상각-깊이 분석법을 적용하여 신호평가를 수행하였고, 2개조는 위상각-깊이 분석법 이외에 진폭-깊이 평가 기법을 적용하여 SGMP Mock-Up에 대한 최적의 기법을 설정하였다.

객체지향 데이타베이스 시스템에서 트랜잭션 처리를 위한 동시성 제어기법설계

李淵植,裵錫燦,申定薰 群山大學校基礎科學硏究所 1993 基礎科學硏究 Vol.8 No.-

When some transactions are concurrently executed, the DBMS should be controlled not to induce such a problem that currently executing applications may interfere other transactions. When the generally used conventional locking mechanism in DBMS is applied to composite objects, a class or an instance of a class comes to be treated as a lockable unit. As a results, a number of locks happen to increase and the concurrency level of the system can be deteriorated. In this paper, we proposed the mechanism of locking in Object-Oriented DataBase Systems to enhance their concurrency. According to the proposed locking mechanism, when a transaction tries to access some composite objects, the DBMS checks whether the accessed composite objects and the lock of the transaction are compatible by taking advantage of the relevant components information of the composite objects. If they are compatible, the DBMS locks the target composite objects, and allows the transaction to access and operate on the target composite objects.