Optimization of the Beam Parameters in a Time-Dependent Free-Electron Laser

NAM*, Soon-Kwon,KIM, Tae Hoon Korean Physical Society 2018 New Physics: Sae Mulli Vol.68 No.10

農村住民의 醫療實態에 關한 調査硏究 : 忠淸南道 瑞山郡 Seu San Gun, Choong Chung Nam Do

洪鍾寬,兪勳,美南熙 順川鄕病院 1976 順天鄕醫報 Vol.1 No.2

To get basic data for the implementation of health demonstration program, an health survey was conducted for 2,987 population in 502 households in Unsan myon and a part of Haemi myon, Seusan gun, Choong Nam Province during 1st through 30th September, 1976 by the Soon Chun Medical Foundation. A total of 10 surveyers were mobilized for the survey visiting households every 10 days. All housewives and/or house masters in the survey area were interviewed by the surveyers 4 times in total. Major contents of the survey were included 1) socio ecomic background of the villager's living status 2) prevalences of various diseases 3) utilization of available medical facilities and health expenditure, etc. The result of the survey is as follows; (1) Average house hold size ............................................................... 6.0 person (2) Age group 0-14yrs................................................................... 38.4% 15-64yrs................................................................. 56.6% over 65yrs............................................................. 5.0% (3) Marriage status of house holder Married ................................................................. 91.6% Non-married ....................................................... 2.6% Window(er) ......................................................... 5,8% (4) Education Primary school ................................................... 59.1% Middle school ..................................................... 7.6% High school ........................................................ 4.4% College ................................................................. 1.6% Illiteracy .............................................................. 27.3% (5) Occupation Farming ................................................................ 82.4% Sales ...................................................................... 4.4% Labour ................................................................... 3.6% Office clerk .......................................................... 2.8% (6) Housing Own house ............................................................ 91.6% Rent house ............................................................ 3.4% (7) Rooms being used 2 rooms .................................................................. 46.0% 3 rooms ................................................................. 39.2% (8) Annual income per household ............................. 77,260 won From farming ...................................................... 73.6% Cash imcome ....................................................... 17.5% Other crops .......................................................... 8.9% (9) Monthly cash income (August) ............................... 32.114 won (10) Monthly expenses (August)...................................... 47,360 won (11) Saving per household ............................................... 82,172 won (12) Farmland, Rice field .............................................................. 1,579 pyong Dry field ............................................................... 1,152 pyong (13) Special crops farm, Sericulture ........................................................... 38.5% Tobacco ............................................................... 34.8% Greens ................................................................. 19.5% (14) Farmland for side production per household .............................. 442.2 pyong Special crops annual income ........................................... 181.130 won (18) Water resources, Pumping .................................................... 72.9% Well ............................................................ 20.5% Piping ......................................................... 1.6% 2. Diseases and Medical status (1) Houses with diseases during the period ....................................... 73.3% (2) Average number of patients per household ................................. 1.74 cases (3) Prevalence rate during the period ................................................... 21.5% Incidence rate ........................................................ 7.5% (4) Age group of the population with high prevalence rate male: 0 - 29yrs, over 60 yrs female: 30 - 59 yrs (5) Classification of diseases Digestive ............................................................ 31.9% Respiratory ........................................................ 22.7% Nerve system ................................................... 19.6% Skin ..................................................................... 6.4% (6) Duration of diseases Average per disease ........................................ 21.6 days Average per person ......................................... 4.6 days (7) Patiemts medically cared ........................ 63.6% (8) Reason for non-treated Can not afford the cost .......................................... 56.0% In patience ................................................................... 40.2%

유해화학물질의 계통분석

박성우,박유신,이진훈,유재훈,김유나,오세진,이진숙,김남이,박종신,남금문,노동석 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

.Pseudomonas stutzeri 감염에 의한 맥락총염에서 초래된 포착성 측뇌실 확장 1예

김남곤,권오영,박기종,최낙천,임병훈 대한신경과학회 1997 대한신경과학회지 Vol.15 No.2

선형유도전자펌프내의 자기유체 유동에 관한 수치적 연구

최훈기,유근종,박태봉,은재정,장남영 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

Numerical analysis is performed for magnetic and MHD flow fields in Electro-Magnetic(EM) pump. A finite volume method is applied to solve magnetic field governing equations and the Navier-Stokes equations. Vector and scalar potential methods are adopted to obtain the electric and magnetic fields and the resulting Lorentz force in solving Maxwell equations. The magnetic field and velocity distributions are found to be influenced by the magnitude of the Reynolds number and the phase of applied electric current. Computational results indicate that the magnetic flux distribution with changing phase of electric current is characterized by a pair of counter-rotating closed loops. The velocity distribution of the flow field is influenced on the intensity of Lorentz force.

매립폐기물의 혐기성분해에 소각재가 미치는 영향에 관한 연구

이남훈,송선호 안양대학교 산업기술연구소 2004 自然科學硏究 Vol.11 No.1

본 연구는 소각재가 매립폐기물의 혐기성 분해과정에 미치는 영향을 생분해성도 평가방법인 BMP(Biochemical Methane Potential) test를 이용하여 정량적으로 평가하였다. 폐기물의 생분해도 실험은 음식물류, 종이류, 섬유류, 목초류에 대해 실용량 303mL의 serum bottle을 사용하여 각각 실시하였으며, 실험은 총 60일간 실시하였다. 이때 소각재 혼합매립으로 인한 강알카리성 환경에서 매립폐기물의 미생물분해에 미치는 영향을 평가하기 위한 pH 조정방법은 각각의 폐기물 시료와 식종슬러지, 영양배지를 주입한 serum bottle에 직접 소각재를 주입하면서 pH를 4단계(7.0, 7.5, 8.0, 8.5)로 조절하여 소각재 혼합매립된 매립지의 침출수의 pH 범위를 모사하였다. 실험결과 생분해도는 소각재 함유량이 많을수록 pH가 높아져 혐기성미생물 활동에 저해요소로 작용하여 분해에 소요되는 시간이 길어지는 것으로 나타났다. 아울러 pH가 높아짐에 따라 폐기물로부터 메탄발생량은 감소하였는데, 이는 소각재 함유량이 많을수록 미생물활동을 저해하여 메탄발생량은 감소하는 것으로 평가되었다. 따라서 매립폐기물이 생분해과정에서 최종메탄수율과 발생속도상수 모두 pH와 높은 상관관계를 보이고 있음이 입증되었다. This study was conducted to evaluate the biological effect of bottom ash on the anaerobic biodegradation in the MSW landfill site using the BMP(Biochemical Methane Potential) assays. typically used to assess anaerobic biodegradability of liquid wastes with added nutrients and bacteria. BMP assays using a serum bottle of 303mL were performed for food, paper, textile and wood wastes respectively. In order to simulate the same pH value of leachate from the MSW landfill site, 4 kinds of pH value (7.0, 7.5, 8.0 and 8.5) were adjusted putting bottom ash from a MSW incineration facility into serum bottles. The results of this study suggest that, as pH is getting higher with increasing in the content of bottom ash in the MSW, the lag-phase period of biodegradation for every waste were growing longer, and the methane yield decreased. It is considered that the effect of bottom ash varying alkalinity of leachate on the microbial activity appeared sensitively. Finally, it was found that, in the biodegradation process of landfilled wastes, both ultimate methane yield and kinetic were dependent upon pH of leachate.

반건식-백필터에 의한 소각배가스 중의 HCI, SOx 제거 (Ⅰ)

배병훈,신남철,고경숙,김춘희,문종익,임경택 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1

This study has been carried out to investigate the removal efficiencies of HCl/SOx in a Spray-Dryer/Fabric-Filter system. In HCl/SOx removal, we could identify the key factors such as spray dryer outlet temperature, molar equivalence ratio(MER) and fabric filter velocity, but we couldn't find out the correlation of HCl and SOx. The removals of HCl/SOx were inversely proportional to spray dryer outlet temperature(l30~170℃) and filter velocity(l.0~1.5 m/min), at the MER, HCl removal efficiency was strongly proportional to MER, but SOx, removal efficiency was not particularly increased by MER over 1.5. The removal efficiencies of HCl/SOx were improved over 10% at the fabric filter. In this Spray-Dryer/Fabric-Filter system, HCl/SOx removal efficiencies were about 99%, 96% respectively.

만성두통 환자의 성격유형 A 행태, 스트레스, 우울 및 두통영향정도의 관계 연구

차남현,임사비나,정인태,김수영,안경애,김건식,이재동,이상훈,최도영,이윤호,이두익 EAST-WEST MEDICAL RESEARCH INSTITUTE KYUNG HEE UNI 2005 東西醫學硏究所 論文集 Vol.2005 No.-

To examine an estimate factor and grasp the relation of difference for Ype A Behavior Pattern(TABP), Perceived Stress Questionnaire. Depression and HIT-6 in the Chronic headache client. Method: Data collected by self-reported questionnaires from 38 client in S city who were selected by criteria of IHS, from the 19^(th) of October to 10^(th) of December, 2004. Result: 1) Differences between biographical data by TABP was significant by SaSang constitutions, by Stress was significantly influenced by age, and by Depression were significantly influenced health status and SaSang constitutions. 2) Correlations Coefficients among Study Variables were Stress and Depression(r=.494, p=.002) and Depression and HIT-6(r=.432, p=.010). 3) In regression analysis, HIT-6 were significantly influenced by Depression and Type A Behavior Pattern(TABP). These variables explained 38% and 34% respectively. Conclusion: The result suggest that chronic headache management with psychological aspect, as well as physical aspect should be a focus to enhance the quality of life.

기업내용공시제도에 관한 고찰 : the Timely Disclosure 적시공시를 중심으로

형남훈,정종덕 東西大學校 1999 동서논문집 Vol.5 No.-

The corporate disclosure system has its object of protecting investors. It is system which guides investors to make their decision reasonably, by disclosing the corporate information promptly, correctly, and complectly. The system is devided into the periodic reporting and the timely disclosure according to contents and period of disclosure. The object of the study is to examine the problems of the timely disclosure system and then to suggest its reform measures. The study is to investigate the existing disclosure system, expecially the timely disclosure system centering on its offence cases, considering that the puport of disclosure philosophy is the very purpose of securities maket, that is, equal opportunity for using information and security of fair dealings. The timely disclosure system is generally defind as the system which leads listed corportations to disclose material corporate information quickly, exactly, and fairly, so that it secures to fix prices for listed securitied, and investors enable to pass a resonable judgement on investigation reasonably and on his pwn responsibility, by disclosing corporate material information. Secondly, to prevent unfair dealing such as insider dealing in advance, by giving investors and insiders equal chance for using the corporate material information. In conclusion, as the subject of disclosure listed corporation should take the social responsibility for protection of investors, by disclosing not only promptly, correctly, and fairly but positively and spontaneously on the basic of enterprise ethic and the purpose of securities & exchange law. So it will be proved that the fair dealing system fixed and securities markets develop healthly.

러프집합을 이용한 통합형 채권등급 평가모형 구축에 관한 연구

박기남,이훈영,박상국 한국경영과학회 2000 韓國經營科學會誌 Vol.25 No.3

Many different statistical and artificial intelligent techniques have been applied to improve the predictability of credit rating. Hybrid models and systems have also been developed by effectively combining different modeling processes of combining the outcomes of individual models. In this paper, we introduced the rough set theory and developed a hybrid credit rating system that combines individual outcomes in terms of rough set theory. An experiment was conducted to compare the prediction capability of the system with those of other methods. The proposed system based on rough set method outperformed the others.