반복작업으로 유발된 수근관내의 굴곡근 건초염과 수근관 증후군 : 증례 보고 Case Report

김돈규,서경묵,신주연,강시현,송인섭 중앙대학교 의과대학 의과학연구소 2003 中央醫大誌 Vol.28 No.1

A 46 year-old woman who had worked repetitive manual job for 3 years visited our hospital because of aggravated right hand sensory symptom and newly developed limitation of 3, 4, 5th finger extension. In physical examination, moderate swelling of volar aspect of wrist and limitation of finger extension was noticed as well as positive tinnel sign. We confirmed carpal tunnel syndrome after electrodiagnostic studies and associated flexor tenosynovitis of 4th flexor tendon in the carpal tunnel through MRI (magnetic resonance imaging) study. She was successfully treated with conservative program including wrist splint and steroid injection. We also tracked the result of treatment using MRI and electrodiagnositic studies. Analyzing her work procedure, we concluded that repetitive and forceful exertional nature of job impose a high burden on hand and wrist region and it caused her carpal tunnel syndrome.

거제지역어에 대한 음운론적 고찰

강돈묵 거제전문대학 1998 論文集 Vol.7 No.-

지금까지 거제방언의 음운체계와 음운현상들을 살펴보았다. 거제 지방의 방언을 음운론적으로 고찰하여 그 특징을 정리해 보면 다음과 같다. 1) 거제방언에서 실현되고 있는 음운의 수는 자음음운이 19개, 단모음이 7개이다. 그리고 반모음 /y/와 /w/는 자음이 선행할 경우에는 중모음이 단모음화가 이루어져 실현되지 않으며, /y/나 /w/로 시작한 극히 한정된 경우에만 발음된다. 2) 대표적인 음운현상으로는 구개음화현상, 경음화 현상, 격음화 현상, 탈락현상, 첨가현상 등이 있으며, 이러한 현상들은 매우 다양하게 실현되고 있다. 3) 움라우트 현상이 두드러지게 나타나고 있으며, 전설모음화와 후설모음화도 여러 가지 형태를 보이고 있다. 4) 거제방언에서는 이중모음의 단모음화 현상이 많이 실현되고 있다. 이상 본고에서는 거제지역 방언을 음운론적 관점에서 살펴보았다. 이번 방언조사에서 특이하게 나타났던 것은 생소한 어휘들이 많았다는 점과 조립된 한자어의 쓰임이 다른 지역보다 그 빈도수가 현저하게 높다는 점이었다. 앞으로 이런 점에 착안하여 거제의 방언을 어휘론적인 측면으로 접근하는 것도 의미있는 일이라 생각하며 후일의 연구 과제로 남겨 둔다.

붕소 산화물이 첨가된 탄소/탄소 복합재의 흑연화 및 산화저항성

최돈묵 경원전문대학 2002 論文集 Vol.24 No.-

To improve the oxidation resistance of the carbon/carbon composites according to the heat treatment temperature, reinforcement and adding method of boron oxide, various types of carbon fiber and novolac type phenolic resin matrix composites were molded and heat treated up to 2000℃ or 2400℃. The oxidation resistance was observed with TGA and EPMA. The results of this study could be summarized as follows. 1. As a results of analysing with EPMA, the residual amounts of boron oxide carbon/carbon composites reinforced with PAN based carbon fiber compared to the others. These results were brought from crystalline orientation, degree of crystallinity and structural continuity. 2. Boron oxide enhanced the graphitization and the oxidation resistance.

탄화규소를 도포한 4 방향성 탄소/탄소 복합재의 산화저항성

최돈묵,인세진 경원전문대학 2000 論文集 Vol.22 No.-

To improve the oxidation resistance of the 4D CFRCs, the surface of CFRCs was coated with SiC by the pack cementation method. The morphology of crystalline and texture of these SiC coated 4D CFRCs were investigated by XRD and SEM/EDS observation. The oxidation resistance were observed through the air oxidation test and the ablation properties of them observed by torch test. The results of experiment could be summarized as follows. 1) As a result of analysing the 4D CFRCs with SEM and EDS, it was found that the material on which coated by pack cementation was the SiC, and the thickness of coated layer was about 200㎛. 2) The oxidation resistance of SiC coated CFRCs was much increased up to 1,500℃ as a result of air oxidation test. As oxidation temperature initiated was about 800℃, temperature was raised about 300℃. 3) From SEM observation after air oxidation test, glassy anti-oxidation layer of SiO_(2) was formed on surface of CFRC. 4) At arc plasma torch test the ablation rate of bare CFRC was 0.0590 g/sec, while SiC coated CFRC at coating temperature of 1850℃ was 0.0013g/sec.

TTT경화도표에 의한 에폭시 시스템의 경화반응 메카니즘과 반응속도에 대한 연구

최돈묵,인세진,오인석 경원전문대학 1999 論文集 Vol.21 No.-

Arbitrary cure temperatures were selected by using TGA (thermogravimetric analysis) for a uncured mixture of epoxy resins and anhydrides with accelerators. The TTT (time-temperature-transformation) cure diagram, including the iso-T_(g) contours, the vitrification curve, and the full cure line, was determinated by using a one-to-one relationship among the temperature of glass transition (T_(g)), the residual enthalpy (ΔHr), and the conversion ratio (α) which were obtained by using DSC (differential scanning calorimetry). And then an optimum cure cycle was considered within the region of the glass transition temperature, T_(g)∞, of a fully cured epoxy system. In order to accelerate cure reactions of an epoxy/anhydride system within the selected cure condition, a tertiary amine was used. TGA, DSC, and FT-IR(Fourier Transform-Infrared) were used to examine the effects of accelerators against epoxy resins and anhydride hardeners and to investigate cure reactions for an accelerators-added epoxy/anhydride system. Based on experimental results, the mechanisms of cure reaction were proposed, hereby the kinetics of cure reaction were calculated.

아마추어 골퍼에서의 골프 관련 통증의 발생 빈도 및 분포

서경묵,김돈규 대한스포츠의학회 2003 대한스포츠의학회지 Vol.21 No.1

The purpose of this study is to investigate prevalence of golf-related pain and understand the regional distribution of golf-related pain and associated factors. We sended e-mail questionnaire to one thousand thirty four amateur golfers among members of a internet golf site in the period from August, 2001 to December, 2001. There were 602 respondent of whom 63.5% reported recent pain associated with golf activity. Based on regional pain distribution, upper extremity including shoulder, elbow, wrist and hand was the most common area of pain complaints, followed by spine, lower extremity, fib and chest in order. Based on anatomical distribution, back was the most common pain site. Overuse factor like number of round per week was associated with golf-related pain. Golf itself imposes relatively more burden on upper extremity and spine. Among risk factors, overuse was associated with development of golf-related pain.

나선형 이중 평행판 축전기형 Blumlein 전송회로를 사용한 소형 질소레이저의 동작 특성 연구

양준묵,이치원,조돈수,이봉연 충남대학교 기초과학연구소 1995 忠南科學硏究誌 Vol.22 No.1

The design and performance of a compact nitrogen laser which consists of a Spiral multiple parallel plate capacitor type Blumlein transmission line circuit are described. The laser tube is made by 50 ㎜ long with a 2.5 ㎜ main electrode gap spacing. The output power increased with the spark gap distance. The peak power of 3.0 μJ has been obtained with a spark gap distance of 3.5 ㎜ and a repetition rate of 30㎐. The optimum nitrogen gas pressure was about 60torr independent of the variation of spark gap distance. The laser operates with repetition rate of up to 70 ㎐.

2D-C/C-composites의 제조와 기계적 물성

주혁종,최돈묵 忠南大學校 産業技術硏究所 1989 산업기술연구논문집 Vol.4 No.1

The purpose of this paper is to fabricate the 2D-C/C-composites with various angles and to examine their mechanical properties. The following results can be drawn from the experiment ; 1) When 2D-C/C-composites carbonized up to 1000℃, the unidirectional sample was shrinked about 20% and the others were shrinked slightly. Meanwhile the density of 2D-C/C-composite was decreased with increasing the laminating angle expect the unidirectional composite (0°/0°) 2) After five times impregnation and carbonization the density did not increased due to the block formation. 3) Flexual strength, flexual modulus and impact strength were increased with increasing the fiber volume fraction. But flexual strength and modulus were decreased above 65% fiber volume fraction, also impact strength was decreased above 68% fiber volume fraction. 4) The value of flexual strength, modulus and impact strength were dominent in the unidirectional sample as compared with the different laminating angle.

혐기성 변성 아크릴계 접착제의 제조 및 접착 특성

주혁종,오인석,권호길,최돈묵 忠南大學校 産業技術硏究所 1991 산업기술연구논문집 Vol.6 No.2

An experimental study was performed to prepare the anaerobic acrylic adhesives with TEGDMA(Trietylene Glycol Dimethacrylate), acrylic acid, p-benzoquinnone and CTBN(Carboxyl Terminated Butadiene Nitrile) To characterize the anaerobic modifided acrylic adhesives, tensile shear adhesion strength, DSC, FT-IR, water resistance, chemicals resistance and oil resistance of adhesives were tested. The results obtained in this study could be summerized as follows; 1. Tensile adhesion shear strength was increased with increasing the adding amounts of p-benzoquinone up to 75kgf/㎠ when 0.163wt% added. 2. After a water resistance test for 72hrs, tensile shear adhension strength maintenance was dominant(about 72%) in the C-3 as compared with the others and alkaline solution resistance of adhesives was excellent on the whole as compare to acid solution. 3. The gasoline, light oil resistance of adhesives were very good enough that could be used in the field of mechanical connecting parts.

방화화재에 대비한 고시원의 화재안전성 개선에 관한 연구

김해만(Hae Man Kim)(金海萬),최민기(Min Ki Choi)(崔珉暣,),최돈묵(Don Mook Choi)(崔敦黙,) 위기관리 이론과 실천 2013 Crisisonomy Vol.9 No.7

최근 급속도로 성장하고 있는 산업화로 인해 건축물이 대규모화, 초고층화, 복합화 됨에 따라 많은 변화가 발생하였다. 그 중에서도 실질적으로 주거용도로 사용하면서 수험생뿐만 아니라 젊은 독신 직장인, 외국인 근로자, 도시빈곤층 등 다양한 계층이 이용하고 그 구조가 벌집 형태의 작은 쪽방 구조로 되어 있는 고시원이 증가하고 있는 추세이다. 산업화로 인한 빈부격차, 노사문제, 실업률의 증가 등 많은 사회적 갈등의 심화로 강력 범죄가 증가하고 있는데 특히 불특정 다수인을 상대로 행해지는 범죄인 방화가 증가하면서 많은 인명피해가 발생하고 있다. 본 연구는 고시원의 방화화재 사례 분석과 감식실무를 통해 화재안전성 개선 방안을 제시하고자 연구 되었으며 이러한 연구의 목적을 달성하기 위해 방화화재 사례 분석과 방화원인 감식기법을 조사하였다. 이러한 조사 결과를 토대로 고시원의 방화화재 위험성을 살펴보는 동시에 제도, 법규, 건축, 안전시설 차원의 화재안전성 개선방안을 고찰 하였다. Recently, buildings became larger, higher and more complex. There were many changes by rapidly growing industrialization. Gosiwons with an interior structure of small room of hive form used by many classes are growing. They are used as dwelling purpose substantially. They are used by not only examinees but also young single workers, foreign workers and poor classes in a city. Strong crime is also increasing by deepening of many social conflict. Especially, many life damages are happening as a don't ask crime, and arson. It is increasing and intended for unspecified individuals. Therefore, this thesis is formed to present the improvement method of all stability through example analysis about prevention of fire in Gosiwons and exaltation of practical discernment ability. I investigated the example analysis about arson and discernment skill of the cause of arson. On the basis of this investigation result, I also investigated the danger of arson fire and surveyed about the improvement method like system, law, architecture and safety facility.