유년기 안구적출술 및 방사선치료로 인하여 발생된 안와 열성장에 대한 재건 치험례

홍관석,김성문,김훈,임재석,최미숙,최성원,권종진 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.1

There are many reports of the surgical management for the craniofacial abnormalities arising from the irradiation of the head and face for treatment of childhood cancers. Since the mordern combined-modality theraphy for childhood cancers began in the late 1960s and the early 1970s, recent reports have described the occular, dental and maxillo-facial abnormalities after irradiation in long-term survivors of cancers of the head and face. The resultant deformities may be known to be difficult to reconstruct with surgical techniques. This paper describes the late reconstructive surgery for the unilateral orbital and malar hypoplasia after eyeball enucleation and irradiation during childhood to correct the facial asymmetry and expand the contracted orbital socket into the functional dimension for the retaining eyeball prosthesis with spherical implant. We reports the satisfactory preliminary results from the midfacial osteotomy through the supero-lateral orbital rim and malar bone and the antero-lateral repositioning with the autogenous bone grafting in 26 year-old female patient who will be planned to make the new eyeball prosthesis by the department of ophthalmology.

심실중격결손을 동반한 폐동맥폐쇄에서 선천적우회순환의 기시 및 분포 : A Cineangiographic Study

최재영,이종균,차응석,설준희,이승규,최규옥 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.9

니켈담지촉매의 제조과정에서 액상산화의 효과

최재석,임태훈,홍성안,이호인 한국공업화학회 2004 응용화학 Vol.8 No.1

The deactivation of reforming catalyst in the DIR-MCFC was reported to be affected by dispersion, loading amounts, kind of support and so on. In this research, we checked the resistivities of catalysts prepared by the different methods, and examined the effect of liquid phase oxidation. The oxidized catalyst in a liquid phase showed the increased activity and dispersion even though the nickel species was supported by deposition-precipitation method. In order to investigate the role of the oxidation, TGA, TPR and XRD analyses were conducted. The increase in activity was ascribed to the strong metal-support interaction which was induced by liquidphase oxidation.

단일상 Natural Polygonum Tinctroium 염료의 특성

최창용,양숙향,나재운 한국공업화학회 2004 응용화학 Vol.8 No.2

Indigo, as a blue pigment, has been known as one of the oldest natural dyes. Generally, natural dyes have moderate colors and are environmentally friendly, while harmful mordants must be used for fixing them and obtaining a full color range on fabrics and it is very hard to improve K/S of the dyeing and mordanting. In this study, single solid phase polygonum tinctroium dye was prepared by don- agitator and lyophilization and physicochemical characterization of polygoum tinctoria dye substance was investigated by UV/VIS spectrophotometer, TLC, DSC, FT-IR spectrophotometer, ¹H-NMR spectrophotometer, HPLC, MALDI-TOF mass, CHNS/O. Also cytotoxicity study of polygonum tinctroium dye was carried out MTT-assay.

흰쥐의 발치아에 이식된 태아 치아싹의 발육

최병재,장석철,정한성,이제호,김성오 大韓小兒齒科學會 2006 大韓小兒齒科學會誌 Vol.33 No.1

정상적인 치열의 형성 및 치아의 생성과정을 분석하고 실제로 임상에 적용하기 위해 치아의 발생과정을 연구하는 것은 매우 중요하다. 본 연구는 이식된 태아 치아싹의 석회화가 가능하고 정상적인 구조로 발육할 수 있는지 밝히기 위해, 그리고 악골 자체가 새로운 이식 공여부로 사용가능한지 알기 위해 흰쥐의 발치와에 치아싹을 이식하여 치아의 형성을 살펴보고자 하였다. 이를 위하여 성숙한 흰쥐의 상악 제 1구치를 발거한 발치와에 13.5일된 태아쥐의 치아싹을 이식한 후 4,8주 후에 희생하여 조직학적 및 방사선학적으로 관찰하여 다음과 같은 결과를 얻었다. 1. 이식된 치아싹에서 상아질과 백악질, 치수, 치주인대의 소견을 갖는 석회화된 조직이 형성되었다. 2. 형성된 경조직 및 연조직은 정상적인 치아형성과정에 비해 발육이 늦었으며 유착 및 골양상아질(osteodentin)과 같은 비정상적 조직이 관찰되었다. 3. 석회화된 조직은 8주내에 악궁으로 맹출하는 소견이 관찰되지 않았다. The developmental process of a tooth is being presented as an important study subject to analyze formation of normal dental arch and tooth. The purpose of this study was to see the formation of tooth from a tooth bud transplanted in a white rat regarding that the jawbone could be used as a new donor site of a trasplant. The first molar of a matured white rat was extracted and the tooth bud of a 13.5 day rat embryo was transplanted. The histological and radiographical results after 4 and 8 weeks respectively are as the following. 1. Calcification in dentin, cementum, pulp and periodontal ligament was formed from the tooth bud transplanted in the alveolar socket. 2. The development of hard and soft tissue was delayed compared to the normal tooth formation and abnormal histologic features such as ankylosis and osteodentin were found. 3. The formed hard tissue did not erupt into the jaw within 8 weeks.

안면부에 발생한 고정형 스포로트리쿰증 3례

최윤애,류영욱,정재봉,송준영,이규석 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.3

We experienced 3 cases of fixed type cutaneous sporotrichosis confined to the face. Case 1 was a 32-month old child, affected over the nose. Case 2 was a 25-year old man, affected over the left cheek. Case 3 was a 71-year old man, affected over the nose. Histopathologically, chronic granulomatous inflammation with pseudoepitheliomatous hyperplasia was observed. Mycologically, typical dark brown to black colored colonines with moist, wrinkled and membranous surfaces were cultured. All patients were completely cured by oral administration of saturated KI and itraconazole combined therapy in a short period(40-90 days).

Polygoum Tinctoria와 합성 인디고 염료의 물리화학적 특성 비교

최창용,장미경,공병기,최혜영,나상권,이동병,양숙향,나재운 한국공업화학회 2002 응용화학 Vol.6 No.2

The natural dye substances appear to have a lot of benefits that enable the dyed materials to exhibit their natural colors. It may have a bit of a harmful influence on the human body itself, in comparison with the synthetic substances. It also causes hardly any environmental pollution because of the natural chemicals and costs much less to disposal. In this study was investigated physicochemical characterization of polygoum tinctoria dye substance and synthetic indigo. Calcium hydroxide was added into polygoum tinctoria leaves to precipitate dye substances and it was freezing dried into powder form. Characterizations of dye substances were investigated by UV/VIS spectrophotometer, TLC, DSC, TGA, HPLC, and MALDI-TOF Mass. Resultantly, polygoum tinctoria was confirmed that is consisted of two ingredients from these results.

지향성 패턴을 이용한 체육관 음성명료도의 향상

崔平錫,金錫載 國立 昌原大學校 産業技術硏究所 1987 産技硏論文集 Vol.1 No.-

In this paper, we study an acoustic array system which is suitable for an auditoriun when a gymnasium is used as an auditorium. The purpose of this paper is to prove that, using this system, any sounds from auditorium stage is clearly noticed at any place of the auditorium. The important part of this system is curve array speakers and assistant speakers group. This curve array speaker is constructed to get the best condition as a reinforcement equipment considering the direction pattern, reverberation time.

공업계 고등학교 기초전기이론 모의실험을 위한 컴퓨터 프로그램 개발에 관한 연구

최두진,김종석,박재웅 大田産業大學校 2002 한밭대학교 논문집 Vol.19 No.-

Currently we are facing a rapid developing age of information. Access to a wider than ever possible range of living information has been made possible to the swiftly expanding development of information communication technology. In accordance with this situation, the information-oriented education is gradually expanding in school. Also educational software has been lively developed to use directly in the class of technical high school. The purpose of this study is to complete and develop a Basic Electrical Virtual Lab System to practice basic electrical experiments. The students can easily understand the basic theories and rules by testing them using the system made by themselves. In this Basic Electrical Virtual Lab System it was able to complete the topics for the determination of the resistor value, resistor's connection, Kirchhoff's law, and to develop condensers connection, Ohm's law newly. The students get the same results just like in real experiments because the program is developed to simulate the real experiments. The virtual experiment site can be accessed easily by internet and an experiment is performed based on individual basis without restriction of location and time. This program can be used as fully the real experiment substitution or supplementary educational materials. In both case, it provides many benefits in education.

인천 인현동 호프집 화재 피해자 분석

최정태,안무업,안희철,최영미,정재봉,서정열,유기철,이삼우,박석현,조준휘,김성환,김아진,송근정 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Purpose : This study was conducted to develop field triage, transportation, distribution, and prehospital care at a fire disaster by analyzing the victims of the fore that broke out at a bar in Incheon. Method : We analyzed the cases of the victims of a fire in Incheon in Oct. 1999. We determined the primary care hospital, the arrival time, the burn size, the outcome, and the injury type from the medical records, the concerned organ records, and interviews with concerned persons. Result : The total number of victims was 137: 56 prehospital deaths, 1 hospital death, and 80 survivals. The Pearson correlation coefficient between the burn size and the severity was -0.175. There were 121(89.6%) cases of inhalation injury, 59 (43.7%) cases of flame burns, 66 (48.9%) cases of hypoxic brain damage, and 16 (11.9%) cases involving other types of injury. Conclusion : The causes of death of the fire victims were inhalation injury and hypoxic brain damage due to CO poisoning and other toxic inhalants. We propose the use of a simple triage and rapid treatment(START) system and a reassessment the delayed category in fire disasters.