3차원 전산화단층촬영 영상을 이용한 안면 연조직 두께 계측의 임상적 유용성

정호걸,김기덕,한승호,허경석,이제범,박혁,최성호,김종관,박창서 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.36 No.2

Purpose : To evaluate clinical usefulness of facial soft tissue thickness measurement using 3D computed tomographic images. Materials and Methods : One cadaver that had sound facial soft tissues was chosen for the study. The cadaver was scanned with a Helical CT under following scanning protocols about slice thickness and table speed; 3 mm and 3 mm/sec, 5 mm and 5 mm/sec, 7 mm and 7 mm/sec. The acquired data were reconstructed 1.5, 2.5, 3.5 mm reconstruction interval respectively and the images were transferred to a personal computer. Using a program developed to measure facial soft tissue thickness in 3D image, the facial soft tissue thickness was measured. After the ten-time repeation of the measurement for ten times, repeated measure analysis of variance (ANOVA) was adopted to compare and analyze the measurements using the three scanning protocols. Comparison according to the areas was analyzed by Mann-Whitney test. Results : There were no statistically significant intraobserver differences in the measurements of the facial soft tissue thickness using the three scanning protocols (p>0.05). There were no statistically significant differences between measurements in the 3 mm slice thickness and those in the 5 mm, 7 mm slice thickness (p>0.05). There were statistical differences in the 14 of the total 30 measured points in the 5 mm slice thickness and 22 in the 7mm slice thickness. Conclusion : The facial soft tissue thickness measurement using 3D images of 7 mm slice thickness is acceptable clinically, but those of 5 mm slice thickness is recommended for the more accurate measurement.

머리염색이 인체에 미치는 영향

윤형식,황성호,이현륭,김수호,박연석,권낙현,정호진,김동훈,노현주,홍성호,박병찬,이관,정해관 東國大學校醫學硏究所 2002 東國醫學 Vol.9 No.1

일상생활에서 모발염색은 흔히 접할 수 있는 미용의 한 종류로 특히 젊은층을 중심으로 폭발적으로 유행하고 있다. 염색을 위항 사용하는 약제는 표백제와 발색제 등 각종 화학약품이 사용되고 있으나 이로 인한 건강장해에 대한 연구는 그리 많지 않다. 저자들은 염색이 인체의 모발건강에 미치는 영향을 파악하기 위하여 염색과 관련된 주관적 증상과 모발의 변화에 대한 실험적 연구를 시행하였다. 동국대학교 경주 캠퍼스 재학생 80명을 대상으로 설문조사를 시행하여 염색 유 ·무 및 염색 후에 경험한 증상에 대해 설문 조사하였고, 의과대학 재학생 46명을 대상으로 피부 반응 테스트를 실시하였다. 또한 염색 전후의 모발 탄성도를 측정하였고 모발의 상태를 파악하기 위해 전자 현미경검사를 실시하였다. 설문조사 결과 염색 전에 비하여 염색 후 안구혼탁, 안구건조, 시력저하, 발진 및 접촉성 피부염, 모발손상, 모근손상 등의 증상을 더 많이 경험한다고 호소하였다(p<0.05). 모발손상과 모근손상은 헤어드라이어 사용 빈도에 따라 증가하는 것으로 조사되었다(p<0.05). 피부반응검사에서 가려움증이 가장 많은 증상이었으며 이는 여성보다는 남성에서 높은 것으로 조사되었다. 염색 전후의 모발장력은 염색 전 134.5±10.37g, 염색 128.0±30.69g, 염색 이틀 후 112.5±19.69g으로 나타났다. 염색 전후의 모발의 전자현미경 케라틴 층이 현저히 감소하고 모발이 가늘어지는 차이를 보였다. 염색은 모발손상, 모발 케라틴 손상 및 모근 손상, 발진 및 접촉성 피부반응, 안구혼탁, 안구건조, 시력 저하를 유발한다. 따라서 염색약으로 인한 손상에 대한 주의와 예방이 필요하다고 생각한다. 예방대책으로 염색 전 피부테스트를 통한 적합성 여부를 판단하는 것이 필요하며 가급적 염색을 피하는 것이 좋을 것이다. 염색약에 발암물질이 포함되어있다는 보고도 있어 염색 제조사의 철저한 실험과 염색 물질의 선별이 염색으로 인한 부작용을 최소화하는데 중요한 역할을 할 것이다. Hair coloring has became one of the most popular cosmetic activities to younger generations during last decade. However, there are few studies on the health effect of widespread use of chemical dyes. This study was conducted to study the effects of hair coloring dye on hair and other systems. We conducted a questionnaire survey of 80 persons in Kyongju campus, Dongguk University. We have done open patch skin test on 46 medical students. We also conducted scanning electron microscopy to examine the hair strength and structure before and after hair coloring process. Injury of hair and hair bulb, contact dermatitis, turbid eyes, xerophthalmia, and poor visual acuity were the main symptoms complained after hair coloring (p<0.05). Injury of hair and hair bulb were increased by frequency of hair-dryer use(p<0.05). In open patch test, pruritus was complanined by more than half of the subjects. Mean strength of hairs before and after hair coloring was as follows; 134.5 (SD 10.37)g before hair coloring, 128.0 (SD 30.69)g immediately after hair coloring, and 112.5 (SD 19.69)g after two days. The scanning electron microscopic findings of hair surface before and after hair coloring showed decreased keratin layer and thinning of the hair. Hair coloring induces injury to hair, its keratin layer, and hair bulb as well as contact dermatitis, turbid eyes, xerophthalmia, and poor visual acuity. Therefore, we think that precaution is needed in use of hair coloring dye. To prevent complications induced by hair coloring dye, it is necessary, especially to those with allergy or skin disorders, to perform skin test before action and avoid hair coloring whenever possible. Longterm health effects of hairdye should be studied and manufacturing companies should try to minimize complications induced by hair coloring dye.

첨단기술의 기술가치 평가기법에 관한 연구

尹寬鎬 培花女子大學 2008 培花論叢 Vol.26-27 No.-

The main objective of this research is to propose a new technology valuation method which is easy to understand and apply. In addition, the method is designed to generate monetary value, rather than score or rank, of technology. To this end, 1 first have reviewed a variety of previous valuation methods and identified advantages and disadvantages of them. Based on the analysis, I have proposed the overall frameworkand detailed procedure of a new valuation method. In doing that, I have emphasized the following factors. First, the new method is applicable to high-tech areas, rather than traditional manufactuhng sectors. Second, the proposed method analyzes the structural relationship between market value and technology value and integrate them into valuation process. Third, the new method takes idiosyncratic charaeteristics of various industrial sectors into account. Fourth, the method is designed to generate monetary value, instead of score or rank. Fifth, the whole process of valuation is module-based where respective modules focus on specific functions but, as a whole, constitute a systematic framework. Sixth, the set of input data comprises two parts, a sub-set provided by individuals or organization to be evaluated.

최대근력부하와 폭발적 근력부하에 의한 신경-근피로와 그 회복과정 비교 분석

유관호,이무연,이승훈,김민섭,육조영,임정일,임완기,김대경 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

The result which was gained from this study is as follows. From the conclusion of this study it was confirmed that resistant motion at high level strength brings about rise in density of lactate in blood at the same time decline of muscular power and generates acute fatigue of nerve-muscle accompanied by decline in electrical activity of muscle. On the other hand explosive loading produced fatigue at body center and decline in nervine-muscular activity particularly for men, In case of women explosive load did not produce fatigue in the same level as men and they were also quicker in recovery after exercise. Based on 2 types of loading method used in this study there was clearly difference in the process of restoration from resistant motion. For greater decline in muscular power and electromyogram activity more longer period of recovery was require.

구다니도자기(九谷燒) 연구

우관호,김문정 홍익대학교 산업디자인 연구소 2003 미술디자인 논문집 Vol.- No.8

레슬링 선수들의 8주간 circuit weight training이 무 산소성 파워와 혈중 피로물질에 미치는 영향

류병관,손호진 龍仁大學校 武道硏究所 2003 武道硏究所誌 Vol.14 No.1

The aim of the present investigate was to effect of long-term circuit weight training on anaerobic power and blood fatigue components in 6 amateur wrestlers who are 6 male from yong-in University amateur wrestler team. All subjects signed an approved University informed consent form and had no known health problems. The results this study was summarized as the follows: 1. It was showed that weight and soft lean mass was significantly, water% was not significantly after 4weeks, 8weeks than pre-training, 2. It was showed that peak power and mean power was sigruficantly, peak power sec was not significantly after 4weeks, 8weeks than pre-training. 3. It was showed that lactate acid and ammonia was not significantly after 4weeks but was significantly after 8weeks. From the study, long-term circuit weight training of amateur wrestlers was increased on Body-Composition, anaerobic power, tolerance of blood fatigue.

대차대조표의 생성과 이론에 관한 연구

윤관호 배화여자대학 1998 培花論叢 Vol.16-17 No.-

American Accounting Association defines accounting as the process of identifying measuring, and communicating economic information to permit informed judgements and decisions by users of the information. According to this definition, the qualitative characteristics of accounting information is that accounting information is based upon quantitative information. Also, nowadays the research methodology on the qualitative characteristics of accounting information is related with quantitative information. The balance sheet is a quantitative descriptive model that may be instituted in order to ac-count the past or future economic events of business. The information of the past or future economic events of business is most useful for the decision-making of business and management. So, the purpose of this study is to compare and arrange the theory on the balance sheet for understanding and economic decision-making of the user of quantified information.

태권도장의 적극적 경영을 위한 조사 연구

유관호 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

The purpose of this study was to grope for a positive management program of the Taekwondo gymnasium through research on the actual condition of the Taekwondo gymnasium users. To examine factors of groping for a positive management program, the questionnaire was used. The 225 subjects who use 8 Taekwondo gymnasium in 2 sectors were selected. The result of the analysis which was about the users' aging, a ratio of sex distinction, the motive of the choice, travel method and the time required, purpose of taking lesson, degree of participation, period of taking lesson, exercise program type, the condition coach, and the amount expended of a month were as follows: First, the users' aging was shown as 10 to 12(56%, elementary school students), 13 to 15(26.22%, middle school students) and the ratio of men was higher than the ratio of women. Second, the users used the Taekwondo gymnasium as choice of him/herself(68.89%) and invitation of their family, and thy learned to keep their health. Third, the users went to the Taekwondo gymnasium on foot and it took into 10 minutes and 20 minutes. Fourth, the users went to the Taekwondo gymnasium 4 to 5 days(44%) and 2 to 3 days (41.33%) of a week and exercised after 18 o'clock(49.78%) and between 14 and 18 o'clock(35.56%). Fifth, the users thought much of exercise program(26.67%), coach(26.22%) and facilities(18.22%), and wanted efficiency(35.11%) and excitement(26.67%), and the sex distinction of a coach was shown as no concern(52.44%) and preference a man(38.67%). Sixth, the users paid out under 70,000won in a month(80.89%) to the Taekwondo gymnasium and they paid out under 100,000won(83.56%) in exercising including.

단체교섭에서 회계정보의 역할에 관한 고찰

尹寬鎬 배화여자대학 1994 培花論叢 Vol.13 No.-

According as the activities of labor union recently came out into the open, collective bargaining between labor and management was no more in the level of physical bargaining on the basis of strength contest. And the two sides came to have increasing interests in the utilization of accounting information as a realistic and reasonable base and the necessity of information notification toward labor union. The purpose of this study is to clarify the role of accounting information in collective bargaining by examing three theoretic models - Game Theoretic Models (Nash Model, Zeuthen Model, Pen Model), Quasi-Temporal Model(Cross Model), Behavioral Theoretic Models(Stevens Model, Walton and Mckersie Model). The results of this study are as folows. Fiest of all, the game theoretic Models suppose that one side(between labor and management) does not know about the other side's alternative but has perfect knowledge of both sides' utility function and asymmetry information. As a rule this theoretic model defies the role of accounting information because it presupposes rationality, perfect knowledge, and mutual independence of alternative. Also this theoretic model is a static in the process of collective bargaining and chiefly pays attention to the results of negotiation. On the other hand, the quasi-temporal model is adaptative and dynamic in the sense that it gives consideration to the change of the total wages according to the point of time of information offer in the process of the negotiation. Also the behavioral theoretic models on the basis of game theoretic models persuppose the quality feature of the effect of information notification for the resurts of the negotiation. But we should admit that this theoritc model is also an explanatory model. Therefore we will have to make wider and deeper studies of these three theoretic models for the application to practical business.

Polyethylene glycol 용액(Colyte^(R))을 복용한 후 발생한 Boerhaave 증후군 1예

이관행,기승석,김인숙,김민정,박인호,장세중,하지수,김응수 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.3

Spontaneous esophageal rupture (Boerhaave's syndrome) is a rare case that require early diagnosis and treatment because of its high mortality. The oral administration of osmotically balanced polyethylene-glycol-based electrolyte preparation is a commonly prescribed preparation for cleansing in patients undergoing colonoscopy. Nausea, vomiting and abdominal pain are frequently seen, but serious adverse reactions are rare. Esophageal rupture secondary to severe vomiting, which occurred during colonoscopy preparation using polyethylene gIycoI(PEG) electrolyte solution is extremely rare and only few cases have been published in the literature. We report a case of spontaneous esophageal rupture after routine administration of the PEG before colonoscopy. 대장 정결을목적으로 PEG 사용 후 아주 드물게 발생하는 Boerhaave 증후군 1예를 경험하였기에 보고하는 바이다.