동씨침을 시술한 안면경련의 치험 3례

김태우,김효은,조명제,강영화,이재동,Kim, Tae-woo,Kim, Hyo-eun,Cho, Myung-je,Kang, Young-hwa,Lee, Jae-dong 대한침구의학회 2003 대한침구의학회지 Vol.20 No.1

Objective : Hemifacial spasm is painless uncommon disorder characterized by involuntary paroxysmal movement of one side of face, In this study, the effect of Dong-Si acupuncture therapy for three patients with hemifacial spasm were evaluated. Methods : We have treated them with acupuncture treatment of Dong-Si acupuncture points(Cheuk-Samni and Cheuk-ha-Samni) and evaluated the effect by Scott's scale, For the first two weeks, it was dine once a day, and after two weeks, the other day. Results : Before therapy, the grades of spasm intensity classified by Scott's description in three cases were 3. And after Dong-Si acupuncture therapy, the grade of one case was 0, and two cases were 1. Conclusion : The Dong-Si acupuncture therapy for hemifacial spasm was effective and will be attempted to the patients with it.

하악 제3대구치의 존재여부 및 매복양상이 하악 우각부 골절과 과두 골절의 발생에 미치는 영향

이영주(Young-Joo Lee),송윤정(Yun-Jung Song),홍순민(Soon-Min Hong),채상식(Sang-Sik Chae),강현우(Hyeon-Woo Kang),최동주(Dong-Ju Choi),박준우(Jun-Woo Park) 대한치과의사협회 2012 대한치과의사협회지 Vol.50 No.9

Purpose : This study evaluated the impact of the presence and aspect of mandibular third molars to the mandible angle fracture or condyle fractures in Korean. Materials and Methods : A retrospective study was designed for patients attending the division of Oral and Maxillofacial Surgery, Kang-dong sacred heart hospital for treatment of mandibular fracture from January 2006 to September 2010. The primary variable was the presence of mandibular third molar and the secondary variable was the aspects of third molar impaction. Mandibular third molars were classified by the impaction depth and the available space as Pell & Gregory system. Outcome variables were the presence of mandibular angle fracture or condyle fracture. Also the source of trauma, age, sex were studied. Hospital charts, radiographs were used for study. Statistic analysis was done with descriptive statistics, the X2-test, linear-bylinear association. P value under 0.05 was considered significant statistically. Results : The number of involved patients was 86. The ratio of male to female patients was about 9:1 for angle fracture and 7:3 for condyle fracture. The most common source of trauma was assault for angle fracture and fall down for condyle fracture. The presence of mandibular third molar increased frequency of angle fracture and decreased condyle fracture with larger impaction depth. But available space of mandibular third molar did not show high association with angle or condyle fractures. Conclusion : Preventive extraction of mandibular third molar is recommended for patients with high risk of angle fracture. Male patients at their third decade or martial artists, police officer could be the case. But it is not recommended for patients with low risk of angle fracture and high risk of condyle fracture relatively. Elder female patients without any symptom on their third molar could be the case.

Aerobic Dance가 主婦의 體力 및 身體構成에 미치는 效果에 대한 硏究

禹善弼,姜東洹 慶熙大學校 體育科學大學 1990 體育科學論叢 Vol.- No.3

The purpose of this study was to see the change of pulmonary function, physical fitness, physique and Body Composition affected by Aerobic movement during 10 weeks. The study was conducted by observing. The following results were concluded the home-keepers who were in their 30s. 1. Body weight, Waist Girth, and Thigh Girth of physique were decreased, and Chest Girth and upper Arm Girth were increased. 2. Skinfold Thickness of Body Composition was totaly decreased, but Lean Body and mass was increased. 3. Book strength and Trunk Flextion were improved better than before, and the height of sargent Jump and the Number of side step were decreased. 4. Average and total Lung Function were decreased after the training compared to before exercise. According to the results of this research, Aerobic exercise has a little effect on weight reduction and physical fitness improvement, but has no effect on Lung function. Also, although strength and Flexibility has been improved as a result of the Aerobic movement, some aspects of power and Agility have not been improved. As a conclusion, although Aerobic exercise can not improve general fitness of the homekeeper but maintain previous fitness level and body shape.

시효전 템퍼링처리가 페라이트계 내열강의 미세조직과 기계적 성질에 미치는 영향

강창룡,김재환,김익수,서장현,배동수,이해우 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.5

This study investigated the effect of the tempering before aging on the precipitation of Laves phase and mechanical properties of 10Cr-6W and 10Cr-6W-3Co ferritic heat-resistant steels. Laves phase was precipitated by aging, which increase tensile strength but decreased elongation and impact value. Toughness was rapidly decreased by the presence of the very fine disk-like Laves phase precipitated at early aging stage. Strength and impact value were decreased by tempering treatment and that is due to the increase of the particle number per unite area and to larger particle size of Laves phase. Laves phase increased by adding Co, and consequently strength was increased and elongation and toughness were decreased. (Received February 26, 2004)

제주도 일원의 지표下 토양기체중의 Radon측정

강동우,박규은 濟州大學校 師範大學 科學敎育硏究所 1988 科學敎育 Vol.5 No.-

A series of experiment is performed to measure radon concentration in the near-surface soil gas at the four locations(Cheju-si, Seoguipo-si, Taejeong-eup, Seongsan-eup) in Cheju Island, using CR-39 detector placed inside radon cups. Two types of radon cups are installed in shallow holes of about 15㎝ in diameter and 50 ㎝ in depth. The optimum etching conditions, ie, the concentration of NaOH solution, etchant temperature and etching time, are found to be 6.25N, 70℃ and 5.5hours for CR-39 detector. A typical conversion factor of radon cup is calculated as 1 track/㎣·30 day= 1.594 pCi/ℓ Average radon concentration over 30 days measured in Cheju Island from May 1. 1987 to April 23. 1988 are 84.33±7.15 pCi/ℓ for open radon cups and 45.61±4.93 pCi/ℓ for closed radon cups.

과학사적 학습지도에 의한 중학생들의 낙하운동 개념 이해

강정우,강동식,김홍중 濟州大學校 師範大學 科學敎育硏究所 1997 科學敎育 Vol.14 No.-

In order to know whether in understanding concepts of the falling motion of the middle school students the learning guidance based on the history of science is the effective learning method or not, on the basis of investigation and analysis of the degree of preconception of the falling motion of students, the conceptual lesson is done through learning the process of changes of the scientific concepts appearing in the history of science and discussion. In the light of the student' motivation and interest, when lesson was over, they said that the learning guidance based on the history of science was better than the traditional ones. Students' grades were about 15% better than that of the control group.

高콜레스테롤血症 흰쥐의 肝臟脂質 成分에 미치는 數種油脂 投與의 效果

禹永淑,姜東姬,李迎卿 진주여자전문대학 1985 論文集 Vol.7 No.-

In the hypercholesterolemic rats, the dietary effect of various fat and oils was investigated on total cholesterol, triglyceride (TG) levels in the liver, fatty acid composition of various fat and oils and tissues lipids. the result was as followed 1. All groups feeding of fat and oils did not significantly affect growth and food intake during the experimental perioud of 3 weeks. 2. The concentration of TG and total cholesterol in liver were not significantly different among all the groups. 3. Fatty acid composition of experimental fat and oils was determined. Soybean oil, perilla oil group were more than lard group in unsaturated fatty acid content. Poly unsaturated fatty acid content of file fish oil group was 15%, contents were remarkable than any other groups. 4. Fatty acid composition of liver tissue lipids was similar to fatty acid pattern of experimental fat and oils and were detected 14-17 kinds of fatty acid. Poly unsaturated fatty acid content of soybean oil, perilla oil and file fish oil groups were more than other groups, and file fish oil groups was abundant EPA. DHA content.

컴퓨터에서 쉽게 즐길 수 있는 비행 슈팅게임의 설계

강상우, 김지윤, 안성옥, 김수균, 박동원 배재대학교 공학연구소 2014 공학논문집 Vol.16 No.1

슈팅 게임(Shoting game)은 액션게임에 속해 있는 장르중 하나로 총 또는 미사일 같은 원거리 무기를 사용해 공격과 적의 공격을 피하는 게임이며[1]‘비행슈팅(Aircraft Shooting)’은 비행기를 조작해서 싸우는 게임이다[2]. 비행슈팅게임은 누구나 게임에 대해 쉽게 이해하고, 쉽게 즐길 수 있기 때문에 다른 장르의 게임들에 비해 대중화 되어 있다. 본 게임은 컴퓨터에서 쉽게 즐길 수 있도록 설계된 게임으로 우주를 배경으로 제작된 게임이며, 수많은 운석과 기뢰들을 피하고, 게임 중반부에 나오는 해적선을 파괴하고 목적지까지 도달하는 것이 게임의 목표이다. 본 게임은 Unity3D를 이용하였고, Unity3D엔진은 다른 플랫폼과의 호완성이 좋고 자체 내에서 지원해주는 기능들이 많기 때문에 많은 개발자들이 사용하고 있다.

중학교 수준별 과학교육을 위한 힘과 운동 단원의 실험 체계 연구

강정우,강동식,임재린 濟州大學校 師範大學 科學敎育硏究所 1998 科學敎育 Vol.15 No.-

The degree of difficulty of learning in the primary ten items of experiments (experiments in the chapter of force and motion) chosen in the eight kinds of middle school science-textbooks which are used in the 6th cumculum, and the necessity of level-study are analyzed. Making science teachers an object of questions, a degree of interest of students and a view of science teachers for learning are inquired, the system of learning, the method of study and the secondary tools for study are proposed. Putting these results of Investigation, the level-study, in order to induce an interest for sudents and develop student's ability, must be done, therefore the level- learning instruments and the standard of test are prepared. Contents of learning in textbooks are analyzed according to the level of students and reconstructed, the various complementary tools of learning, the model of teaching and learning are developed and supplied. In order to develop and preserve the desire of learning of various students at school, the study and training of teachers and the expansion of the related education facilities are needed.

Hydrogen Behavior in Ti-Added Reduced Activation Ferritic-Martensitic Steels

Kang‑Mook Ryu,Dae Geon Lee,Joonoh Moon,Chang‑Hoon Lee,Tae‑Ho Lee,Jae Sang Lee,Dong‑Woo Suh 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.3

Hydrogen behavior and corresponding mechanical degradation were examined in TaTi-RAFM and EUROFER97 steels. Increased Ta content with Ti addition decelerates the hydrogen diffusion but increases the solubility in the lattice. It ismainly led by the higher fraction of Ta-rich MC carbides and dislocation density in TaTi-RAFM steel. Overall activationenergy of hydrogen trapping of investigated steels is evaluated to be 25.3 ~ 25.6 kJ/mol in the tempered condition. The activationenergy increases to nearly 30 kJ/mol when the steels are re-austenitized and quenched. Higher activation energy withincreased dislocation density indicates that the dislocation provides for trap site with higher activation energy than Ta-richMC carbide. Mechanical degradation by hydrogen with respect to the yield strength, tensile strength and uniform elongationcould not be observed in all investigated steels. The presence of hydrogen only has influence on the loss of post-uniformelongation. For a given charging time, the loss of post-uniform elongation is more remarkable in TaTi-RAFM steel due tothe larger hydrogen uptake.