치과 기공사들에게서 나타나는 호흡기 증상과 이의 관련 요인

김웅철,오세윤,김지환,김진완,이준석,이가영,이세훈,유진호,김태석 高麗大學校 倂設 保健大學 保健科學硏究所 2001 保健科學論集 Vol.27 No.1

This study was carried out to investigate subjective respiratory symptoms and their attributable factors in Korean dental laboratory technicians. A questionnaire was mailed to randomly selected 1,900 dental laboratory technicians. Among them, 1,344 dental technicians completed the questionnaires and returmned them. Validity and reliability tests on the questionnaires were carried out before the main survey. To investigate risk factors on respiratory subjective symptoms, we performed analysis on distribution of characteristics, and then investigated univariate analysis and multiple logistic regression analysis. The prevalence rate of wheezing, cough and phlegm, and dyspnea was 4.8%, 33.9%, 54.9%, respectively. Statistically significant factors inducing subjective respiratory symptoms by multiple logistic regression analysis were sex, smoking, exercise, health examination, work hours a day, investment gas, investment dust, metal fume, resin vapor, and asbestos dust. Considering the results above, it seems that most subjective respiratory symptoms are related with health habits and occupational environmental-related factors. The result, consideration in mind, suggest that health promotion programs for smoking cessation, regular health examination, and physical exercise in health habit, and improvement on casting and resin work in dental technological environment be necessary.

광주·전남지역 재실의 건축적 특성에 관한 연구

박강철,이상선,신웅주 조선대학교 지역사회발전연구원 2003 地域發展硏究 Vol.8 No.1

This study is to examine the actual conditions of the houses built for ancestral rites in Jeonnam region with them located at Hwasun-gun, Jangseong-gun and Gwangsan-gu in Jeonnam through the process of literature survey, measurement and analysis. The results of this study are as follows. It is found that the location of the houses built for ancestral rites is mostly found at mountain in back of the village, followed by inside and back of the village. According to the period, it was built distant from the village earlier and it was difficult to approach them and was closed space for family, but it has been opened and generalized to the public people because it was built back or inside the village. The location of the houses built for ancestral was mostly 二-letter type, followed by 一-letter type. 一-letter type can be classified according to the number of rooms. The three rooms type has the basic type of "R1-F-R2〔WVF〕", extra type of "R1(Rs)-F-R2(Rs)〔WVF〕" and division type of "R1/Rs-F-R2/Rs〔WVF〕". the four rooms type has the basic type of "R1-F-F-R2〔WVF〕", extra type of "R1/Rs-F-F-R2/Rs〔WVF〕", division type of "R1(Rs)-F-F-R2〔WVF〕" and other type of "R1(Rs)-F-F-R2/Rs〔WVF〕". The five rooms type has four types such as the basic types of "R1-F-F-F-R2〔WVF〕", "S-R1-F-F-F-R2〔WVF, WVL〕", the extra type of "R1/Rs-R/FH-F-F-R2〔WVF〕" and the division type of "R1/Rs-R/R-F-F-R2〔WVF〕".

제주 우수 수영 선수들의 년중 훈련효과 분석 및 처방

김철원,임상용,김승곤,오만원,김성찬,이창준,남사웅,이세형,류재청 濟州大學敎 體育科學硏究所 1996 체육과학연구 Vol.2 No.-

The study was undertaken to analysis, evaluate, and prescribe the annual effect of training of periodically anaerobic and erobic motor ability for Che-Ju representive team of elementary, middle and high school athletes, first the performance can be obtained when it was prescribed proper training after analysis of physical fitness by each events, second individually fitness scientific analysis. prescription. proper management of athlete will be necessary to apply.

大學生들의 健康에 관한 意識 및 習慣實態調査 硏究

權哲雄 群山大學校 1984 論文集 Vol.7 No.-

If the students who shoulder the destinies of our country, are the best intellectuals and will play leading parts in the society are in good condition of school life, they may be in good condition of every day's life and their habit and attitude may be good, so their good life will uplife their studies at school. Achamma Chacko Says; "I taught them (the students) on health, and at its result, they brought the variation of knowledge, that of attitude, that of act, that of habit and that of tradition." Because the education of university is required, I have aimed at studying the research of knowledge, consciousness, life of health and habit through primary school, middle school, and high school of our students. Through the enquete of students 835 who have not been taught on the education of public health in three zones of eoul, Daejon, and Kunsan, the following result are given. 1. The opportunity of education and knowledge concerning health are influenced through Mass Media and parents greatly, and the education on the disease of blood, such as contagious diseases and adult diseases, should be required at the Middle and High Schools. 2. In case of school girls, eating habit is bad, and the cognition of extermination dosage and preventive injection for health and habite is weak. 3. The students are not proud of their health, and they are rather fear of their health. 4. The universities/colleges teaching health to the students are 17.8% among 101 universities/colleges in our country. Therefore, the education of health is inevitable in the educational curriculum of university. 5. The content of the education of health should contain the management of contagious disease, sanitation of environment, adult disease, drink, smoking, and coffee, etc.

블럭탐색 제어를 이용한 프랙탈 영상 부호화 시간 향상과 컬러 영상에의 응용

박철우,정동웅,김태형,김두영 東亞大學校 附設 情報通信硏究所 1996 情報通信硏究所論文誌 Vol.4 No.1

In this paper, in order to reduce block search area during the process to determine the coefficient of IFS transform equation in Fractal Coding, We performed the following steps : First, We partitioned Domain blocks and Range blocks with certain critical point determined by the edge characteristcs and the direction of brightness. When similar block's detected, the Domain block in the same class of the given range was only searched. Second, When the processing is on, We determined the linear list structure with the second error limit, We, therefore, could control coding time, We tryed to improve the compression rate of the Image with reducing the number of times of tranformation by changing the area of block with Quadtree Partitioning, and also tried to progress the fidelity of the image by changing the search density of search area, according to the magnitude of range block. We applied these method to image compression of 24-bpp color. First of all, after converting the RGB coordinate into YIQ Coordinate which has brightness signal and chrominance signal, We minimized by a quarter and coded I,Q signal which implies the information of the color but takes just small part at image information and on the case of decoding, with linear interpolation method we got I,Q signal enlarged as it was. All throughout these processing, We could find out that There are no damages on the original image, and we are able to make better result on compression rate and fidelity of image comparing with those of conventional Fractal Coding method which was applied to the RGB images.

802.11p MAC 시뮬레이션을 위한 NS-2프로그램 제안

임웅철,공현섭,김진상,조원경 경희-다반 ASIC 설계교육센터 2006 경희-다반 ASIC센터 논문집 Vol.7 No.-

IEEE 802.81p는 최소 200km/h의 속도에서 반경 1,000 미터를 커버하며, 운송수단(자동차 등)과 길저리의 장치 또는 운송수단 간에 통신을 지원하는 PHY 및 MAC 표준이다 802.11p 표준의 "Wireless Access in Vehicular Environment(WAVE)"는 기존의 802.11 표준을 기반으로 보다 더 확장되고 특성화된 서비스의 제공이 기대되고 있는데, 충돌방지, 여행정보, 요금 지불, 교통량 관리 등이 바로 이것이다. 이러한 표준의 네트워크를 실험하기 위해서는 컹퓨터 시뮬레이션툴이 필요한데, 그 가운데 NS-2는 확장된 TCL 스크립트 언어와 C/C 언어로서 구성된 시뮬레이터로서 소스가 공개되어 있고, 주석이 있어 유저가 쉽게 네트워크의 원하는 부분을 수정하여 성능 평가 및 실험을 할 수 있다는 장점을 가지고 있다. 기존의 NS-2 시뮬레이터는 802.11e표준으로 수정된 소스가 공개되어 있을 뿐, 802.11p 표준으로의 소스 수정이 필요하기 때문에 본 논문에서는 Network Simulator를 수정하는 방법을 연구하여 제시하였다.

초중등학생의 구강보건관리에 대한 인식도 조사

김교웅,남철현 韓國學校保健學會 2000 韓國學校保健學會誌 Vol.13 No.2

This study was conducted to prevent oral disease of primary school, middle school, and high school students, providing basic data for the development of oral health education programs. Data were collected from 898 primary school, middle school, and high school students from March 2, 1999 to May 31, 1999. The results of this study are summarized as follows; 1) The subjects of this study were primary school students(32.6%), middle school students(33.0%), and high school students(34.4%), middle school boys were 53.2%, and high school boys were 52.6%. 2) According to the self-judgement of oral health, primary school students were better than middle/high school students and boy students were better than girl students. 63.5% of primary school students and 57.8% of middle/high school students brushed their teeth once or twice a day. 3) 76.3% of middle/high school students and 63.5% of primary school students experienced dental caries. Girl students were higher than boy students in experiencing dental caries. 35.9% of primary school students and 27.6% of middle/high school students experienced periodontal disease. 4) 22.9% of primary school students and 7.9% of middle/high school students received oral examinations periodically. Girl students showed a higher rate than boy students in primary school, while boy students showed a higher rate than girl students in middle/high school. 5) Explaining to the reasons for reluctant visits to dental hospitals and clinics, 'no time to go' was highest(22.9% of primary school students; 27.4% of middle/high school students) and the rate of 'feeling scared' was second highest. Middle/high school students were more reluctant to visit dental hospitals and clinics than primary school students. In case of problematic symptoms in the mouth, the rate of 'feeling painful or cold in teeth when eating cold or hot foods' was highest. 71.3% of primary school students was concerned about oral health, while 68.6% or middle/high school students was concerned about it. 6) In gathering to the sources of information on oral health, the rate or medical institutions was highest. (30.0%) in primary school students, while the rate of family members or persons around them was highest in middle/high school students. 7) 54.9% of primary school students received oral health education, while 13.1% of middle/high school students received it. Only 4.7% of middle school and high school girls received it. In relation to dental health education, the rate of 'possibility of prevention of oral caries or disease of the gum' was highest. 79.5% of primary school students and 80.3% or middle school students answered that they would attend oral health education. 8) 60.4% or primary school students and 60.2% of middle/high school students think the purpose of oral health is to prevent dental caries and disease of the gums. In preventing dental caries, 78.8% of primary 88.4% of primary school students and 88.8% or middle/high school thought that brushing one's teeth was effective and 64.1% or primary school students and 50.7% of middle school students thought that the use of toothpaste containing fluoride was effective. In preventing periodontal disease, 91.1% of primary school 72.4% of primary school students and 70.3% of middle/high school students thought that teeth cleaning was effective. 9) 16.0% of middle school students and 12.7% of high school students thought that their oral health condition was healthy. According to individual experiences in dental treatment, the rate of experience of middle school students was higher than that of high school students. 12.7% of middle school students received oral examinations periodically, while only 3.3% of high school students did so. 10) In cases of 'having no problematic symptoms in the mouth' and 'concerns about oral health', the rate of middle school students was higher than that of high school students. In gathering obtaining information on oral health, the rate of obtaining it through broadcast media including TV, Radio, etc. was highest in middle school students, while the rate of obtaining it through family members or persons around them was highest in high school students. 11) 81.7% of middle school students have not received oral health education. In case of girl students. 97.3% have not received it in high school students. 85.6% of middle school students and 87.2% of high school students think that oral health education is necessary. 12) According to the knowledge level or oral health, the point of high school students(26.33±2.33) was similar to the point of middle school students(26.23±2.30). It appeared that the point of primary school students was highest(26.35±2.50). The more concerned about oral health the students were the higher the knowledge level of oral health was. In conclusion, the middle/high school students' knowledge level of oral health was lower than primary school students. The rate of middle/high school students' experience in oral health education was too low. Therefore, it is necessary to intensify oral health education for middle/high school students. Especially, the necessity of oral health education to girl students is strongly recommended. Developing an oral health education program for primary school, middle school, and high school students, related public authority and organizations, teachers, and dentists must actively make efforts together in order to maintain healthy teeth through having students prevent dental caries and periodontal disease.

휴대 인터넷(WiBro)기지국/단말기 Modem의 효율적 하드웨어 구조 설계

임웅철,김진상,조원경 경희-다반 ASIC 설계교육센터 2006 경희-다반 ASIC센터 논문집 Vol.7 No.-

국내 HPi(high speed-portable internet) 표준인 와이브로(WiBro)는 고속 데이터 전송과 다종 접속을 웠해 OFDM에 근간을 둔 OFDMA (Orthogonal Frequency Division Multiple Access) 다중 접속방식을 사용하고 있다. OFDM방식은 다수의 직교성을 지닌 반송파에 정보를 지닌 신호를 실어 데이터를 전송하는 방식으로, 직교 반송파를 구현하기 위해 IFFT/FFT 변환을 사용하여 하드웨어로 간단히 구현할 수 있는 장점을 가지고 있다. 반면에 OFDM은 동기화 오차에 대해 근 민감성을 보이고 있는데, 이에 대해 wibro는 60km/h의 속도에 대헤 안정적인 데이터 전송을 요구하므로 도플러 효과에 의한 영향이 매우 크다고 할 수 있으며, 다중 경로로 생기는 왜곡과 함께 시스템의 시간 동기화의 성능을 감소시키는 결과를 가져오게 되었다. 이에 대헤 휴대 인터넷 단말기 모뎀에서는 채널 환경에 대해 강인성을 지니도록 설계되었고, 비교적 큰 시스템이 모뎀으로 구현되게 되어 휴대 인터넷 단말기의 효율적인 저전력 설계 및 고속 이동시 우수한 성능을 위해 최상의 알고리즘 구현 및 최적화된 하드웨어 구조가 필요하게 되었다. 따라서 본 논문에서는 휴대 인터넷 단말기의 효율적인 하드웨어 구조 설계 대해 알려주고 있으며, 전체 시스템의 채널 환경하에서의 성능을 평가하여 보여주고 있다.

靑代 川ᆞ湖ᆞ陝 交界 山間地域의 經濟開發과 그 성격

鄭哲雄,李俊甲 중국사학회 2006 中國史硏究 Vol.41 No.-

흰쥐에서의 신규 항암제 BR-28702-2의 체내동태

용철순,이신웅,전철수,채희상,신원섭,백우현 영남대학교 약품개발연구소 1995 영남대학교 약품개발연구소 연구업적집 Vol.5 No.-

The purpose of this study was to determine pharmacokinetic parameters of BR-28702-2, a new antineoplastic agent which is the conjugate of nucleotide and phospholipid, and to compare them with those of ara-C. Male rats were cannulated in the left femoral vein and received a single i.v. bolus dose of either BR-28702-2 or ara-C. BR-28702-2 was also administered i.p. and plasma samples were analyzed by reversed-phase HPLC. The t_(L/2(β)) of ara-C(1.22 hr.) was significantly smaller than that of BR-28702-2(4.420 hr.). The absolute bioavailability of BR-28702-2 after i.p. injection was 1.125%. This lower bioavailability, together with previous reports that marked antineoplastic activity was observed when given i.p., indicates that BR-28702-2 would act as a depot system to release active moieties. Further works. therefore, need to be done to characterize active metabolites.