논문 : 개방형 BIM 적용 한옥 부재의 특징형상기반 형상모델링 자동구축시스템 개발에 대한 연구

권수환 ( Soo Hwan Kwun ),박승화 ( Seung Hwa Park ),전한종 ( Han Jong Jun ) 디자인융복합학회 2013 디자인융복합연구 Vol.12 No.2

한국 고유의 전통적 목조 건축양식에 의해 지어진 한옥은 가옥형태의 다양화 및 친환경 주택에 대한 선호도 증가에 따라 관심이 증가하고 있다. 이에 맞추어 한옥 대중화의 일환으로 다양한 연구가 진행 중에 있다. 이러한 연구들 중 하나의 성과로 한옥의 3차원 정보교환을 위한 개방형 BIM연구에서 IFC-XML을 이용한 한옥부재 라이브러리와 개방형 BIM 기반 브라우징 모듈이 개발되었다. 중립 포맷인 IFC에는 형상정보와 XML링크정보를 담고, XML에는 파라메트릭 정보를 담아 이종 BIM 도구들간의 정보교환이 가능하게 되어 한옥설계를 지원할 수 있는 환경을 제공하였다. 하지만 XML을 통해 한옥부재를 제작하려면 이에 관한 전문 지식을 가진 전문가가 코딩을 해야 하며, 하드 코딩방식으로 코딩되기 때문에 한옥 개별부재 하나를 코딩하는데도 수많은 시간이 소요된다. 이를 개선하기 위해 본 연구는 코딩에 대해 지식이 없는 비전문가를 대상으로 하는 IFC-XML 자동구축시스템 개발을 목적으로 한다. 본 연구를 통해 비전문가도 자동구축시스템을 이용하여 각종 한옥 부재를 XML로 구축할 수 있다. 따라서 전문가의 도움 없이 개방형 BIM기반 3차원 한옥 부재 라이브러리의 지속적인 구축을 기대할 수 있을 것이다. Han-ok, which is built according to the traditional Korean wooden architecture, is receiving increasing attention because of increasing preference for diverse house types and environmentally-friendly houses. Accordingly, various studies are in progress as part of popularizing Han-oks. As one of the accomplishments of these studies, in open BIM study for 3D information exchange of Han-ok, a Han-ok member library using IFC-XML and an open BIM-based browsing module have been developed. It provides environment that enables data exchange between different BIM tools by containing geometry data and XML link data in IFC, which is a neural format, and parametric data in XML, to supports Han-ok design. However, to produce Han-ok members with XML, a specialist with expertise must perform coding, and it takes a long time for coding one member of Han-ok because of the hard coding method. To improve this issue, this study aims to develop an IFC-XML Automatic Description System for non-experts who do not have knowledge in coding. This study will enable non-experts to create various Han-ok members by in XML by using the Automatic Description System. Therefore, we can expect to continue building 3D Han-ok member library based on open BIM.

고온에서 HAN 계열 추진제 액적의 거동에 대한 연구

황창환(Chang Hwan Hwang),백승욱(Seung Wook Baek),한조영(Cho Young Han),김수겸(Su Kyum Kim),전형열(Hyung Yeol Jeon) 한국연소학회 2012 KOSCOSYMPOSIUM논문집 Vol.- No.45

The droplet behavior of 83.9 wt.% HAN water solution was investigated experimentally with various ambient temperature and nitrogen environment. At the initial stage of evaporation under thermal decomposition temperature of HAN, gradual decreasing of droplet diameter was observed. After that, the droplet started to expand due to the internal pressure build up by water nucleation inside the droplet. The micro explosion was observed at higher temperature than the decomposition temperature of HAN and the remaining droplet showed similar behavior of single composition droplet. The decreasing rate was augmented as the ambient temperature increasing.

개방형 BIM기반 한옥 라이브러리 자동구축시스템을 위한 파라메트릭 규칙에 관한 연구

권수환(Kwun, Soo-Hwan),박승화(Park, Seung-Hwa),전한종(Jun, Han-Jong) 대한건축학회 2013 대한건축학회 학술발표대회 논문집 Vol.33 No.1

동일한 시료에 대한 국내 기관간의 STR 분석결과 비교 : STR 유전자좌 분석법의 표준화 설정을 위하여

박종태,신경진,양윤석,우광만,이숭덕,이승환,이정빈,정연보,조승희,한길로,한면수,홍승범 大韓法醫學會 2001 대한법의학회지 Vol.25 No.1

This paper described a collaborative exercise intended to see what kinds of short tandem repeat (STR) loci are used in different DNA typing laboratories in Korea and to compare their results for the demonstration whether uniformity of DNA profiling results from different laboratory could be achieved in Korea Laboratories were asked to test five tissue DNAs using methods routinely used in each laboratory and to report the results to the coordinating laboratory. The exercise demonstrated that each laboratory was using different STR loci for the typing with different STR numbers,2 VNTRS,36 STRs and amelogenin in total, and the direct comparison of the results from all the laboratory for the 18 loci could not be done as only one laboratory submitted typing results. Among 21 loci for which several laboratories submitted typing results, results for 14 loci were the same and results for the other 7 loci were different depending on the participating laboratory. D1S80, F13A01, D16S539, D21S11, D18S51, D3S1744 were the loci with different typing results. Even in the cases where commercial kits were used, the results were not the same depending on the machines used, that is the capillary electrophoresis or the gel based electrophoresis. The reason for the different results, points about the standardization of the methods arid the profiling data were described.

정신분열병에 대한 리스페리돈의 효과 및 안정성

이민수,김용구,김영훈,연병길,오병훈,윤도준,윤진상,이철,정희연,강병조,김광수,김동언,김명정,김상훈,김희철,나철,노승호,민경준,박기창,박두병,백기청,백인호,손봉기,손진욱,양병환,양창국,우행원,이정호,이종범,이홍식,임기영,전태연,정영조,정영철,정인과,정인원,지익성,채정호,한상익,한선호,한진희,서광윤 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.1

연구목적 : 본 시험의 목적은 임상시험 시작전에 연구자들을 대상으로 PANSS Workshop을 통하여 PANSS, ESRS에 대한 국내에서의 표준화 작업을 구축하고 새로운 정신병 치료제인 리스페리돈의 효과와 안정성을 재확인하여 리스페리돈 사용에 대한 적정화를 이루는데 있다. 연구방법 : 1996년 4월부터 1996년 9월까지 국내 39개 대학병원 정신과에 입원중인 혹은 증상이 악화되어 입원하는 정신분열병 환자 377명을 대상으로 다시설 개방 연구를 시행하였다. 1주일간의 약물 배설기간을 가진후, 리스페리돈을 8주간 투여하였고, 기준점, 1주, 2주, 4주, 그리고 8주후에 평가되었다. 용량은 제1일에는 리스페리돈 1mg씩 1일 2회, 제2일에는 2mg씩 1일 2회, 제3∼7일에는 3mg씩 1일 2회 투여하였다. 이후 환자의 임상상태에 따라 임의로 증량할 수 있으며, 최대 일일 16mg을 초과하지 않도록 하였다. 추체외로 증상을 조절하기 위한 투약을 허용하였다. 임상증상 및 부작용의 평가는 PANSS(Positive and Negative Syndrome Scale), CGI(Clinical Global Impression) 그리고 ESRS(Extrapyramidal Symptom Rating Scale)을 사용하였다. 연구결과 : 377명중 343명(91%)이 8주간의 연구를 완결하였다. 치료 종결시점인 8주후 PANSS 총점수가 20% 이상 호전된 경우를 약물 반응군으로 정의할때, 약물반응군은 81.3%였다. 리스페리돈에 반응하는 예측인자로는 발병연령, 이전의 입원 횟수, 유병기간이 관련 있었다. 리스페리돈은 1주후부터 PANSS양성, 음성, 및 일반정신병리 점수상에 유의한 호전을 보여 효과가 빨랐다. CGI의 경우도 기준점에 비해 1주후부터 유의한 감소를 나타내었다. ESRS의 경우, 파킨슨 평가점수는 기준점과 비교해 투여 1주, 2주, 4주후 유의하게 증가되었다가 8주후 기준점과 차이가 없었다. Dystonia 평가점수는 1주후만 유의한 증가를 보였으며, dyskinesia 평가점수는 유의한 차이가 없었다. 혈압, 맥박수의 생명징후 및 일반 혈액학 검사, 생화학적 검사, 심전도 검사에서 유의한 변화는 없었다. 결 론 : 이상의 다시설 개방 임상 연구를 통해 리스페리돈은 정신분열병 환자에서 양성증상뿐만 아니라 음성증상 및 전반적인 증상에도 효과적인 것으로 사료된다. 보다 명확한 평가를 위해서는 다른 항정신병약물과의 이중맹검 연구가 필요할 것으로 생각되며, 또한 장기적 치료에 대한 평가도 함께 이루어져야 하겠다. Objective : The purpose of this study was to investigate the efficacy and safety of risperidone in the treatment of Korean schizophrenic patients. Method : This multicenter open study included 377 schizophrenic patients drawn from 39 university hospitals. After a wash-out period of 1 week, the schizophrenic patients were treated with risperidone for 8 weeks and evaluated at 5 points ; at baseline, and 1, 2, 4 and 8 weeks of treatment. The dose was increased from 2mg/day(1mg twice daily) to 6mg/day(3mg twice daily) during the first week and adjusted to a maximum of 16mg/day over the next 7 weeks according to the patient's clinical response. Medication to control extrapyramidal symptoms was permitted. The psychiatric and neurological status of the patients was assessed by PANSS, CGI, and ESRS scales. Results : 343(91%) of 377 patients completed the 8-week trial period. Clinical improvement, as defined by a 20% or more reduction in total PANSS score at end point, was shown by 81.3% of patients. The predictors of response to risperidone were associated older age, shorter duration of illness, fewer previous hospitalization. Risperidone had rapid onset of action ; a significant decrease of the total PANSS and three PANSS factor(positive, negative, general), and CGI was already noticed at the end of first week. For the ESRS, parkinsonism rating scores were significantly increased until week 4 comparing with baseline. Dystonia rating scores were significantly increased until week 1, and dyskinesia rating scores were not significantly changed during the study. Laboratory parameters including vital sign, EKG, hematological, and biochemical values showed no significant changes during the trial. Conclusions : This study suggests that risperidone is generally safe and effective against both the positive and negative symptoms in our group of patients.

비만 여성들의 생활 습관 및 스트레스 적응 방법에 관한 연구

한승환 부천대학 2002 論文集 Vol.23 No.-

본 연구의 목적은 비만 여성들을 중심으로 그들의 식습관과 운동습관 및 스트레스 적응방법 등을 정상 체중의 여성들과 비교해 보는 데 있다. 자료는 2002년 4월 1일부터 5월 31일 까지 배포된 설문지를 통하여 449명의 여성들로부터 얻어졌고 그 결과는 다음과 같다. 1. 흡연율을 살펴보면 정상군(23.2%)이 비만군(20.8%)보다 다소 높게 나타났으며 음주률의 경우 정상군(34.8%)이 비만군(44.4%)보다 낮은 비율을 보였다. 2. 식습관에 있어서는 비만군이 정상군보다 불규칙한 식습관을 갖고 있었다. 3. 비만군의 주당 운동 횟수는 정상군의 운동 횟수보다 적게 나타났으며 정상군이 비만군보다 운동시 운동시간이 더 많은 것으로 나타났다. 특히 정규 코트를 사용하는 배드민턴 시합의 참여율은 정상군이 비만군보다 뚜렷하게 높은 비율을 보였다. 4. 스트레스 적응 방법을 살펴보면 정상군이 대부분 운동과 같은 장기 적응 방법을 사용하는 반면에 비만군의 경우 흡연, 음주, 폭식 등 단기 적응 방법을 선호하는 경향이 있었다. The purpose of this study was to compare normal-weight group to obesity group through their eating habits and habits of exercise, the ways to adapt to those stress. Data was obtained from 449 women by means of a questionnaire which was distr`ibuted from April 1 to May 31, 2002. The results of this study are summarized as follows. 1. According to the rate of smoking, it was revealed that normal-weight group(23.2%) was slightly higher than obesity group(20.8%). In regard to their rate of drinking, it was found that normal-weight group(34.8%) was lower than obesity group(44.4%). 2. In the eating habits, obesity group had their meals more irregularly than normal-weight group. 3. The frequency of exercise for a week of obesity group was lower than that of normal-weight group and normal-weight group spend more time on the exercise execution than obesity group. Especially, with regard to the rate of participating in Badminton game by use of regular court in practical events, the rate of normal-weight group was higher remarkably than that of obesity group. 4. According to the ways to adapt stresses, it was revealed that most normal-weight group prefer a long-term adaptation as athletics, while lots of obesity group short-term one as smoking, drinking, intemperance in eating.

전기자동차 운전을 위한 직류타여자 전동기의 쵸퍼제어

한경희,강승욱,김용주,정연택,이승환 明知大學校 産業技術硏究所 1994 産業技術硏究所論文集 Vol.13 No.-

Recently, the speed control of electric motorcar usually adapts the chopper control method by the development of power electronics and semiconductor manufacturing techniques. When the chooper control is adapted to the speed control of electric motorcar. D.C.series motor is mostly used because of the large starting torques and good control characteristics. But with respect to the economy, D.C. separately excited motor with shunt characteristics is profitable because of high adhesivesness and consumption. So, we compare the characteristics of the bilateral variable-ratio chopper controlled D.C. separately exited motor with that of the D.C. series motor theoretically and experimentally, and present the method which is able to simplify the main chopper circuit by selecting among the forward powering, forward regenerative braking, backward powering, and backward regenerative braking only by using the main chopper control signal. Also, control method is studied which has similar driving characteristics to that of the gasoline motorcar.

예측전류제어기를 이용한 3상 PWM 컨버터

한홍일,함년근,성낙규,이승환,이훈구,오봉환,한경희 명지대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.20 No.-

PWM converter has better power factor and low harmonic components than conventional diode rectifiers and phase controlled rectifier. Also the DC link voltage can be regulated fast and stable against the variation in the load. In order to regulate for DC link voltage, rapid current control is need for source current control. This paper focuses on the improvement of quickness of current controller to know the transient state characteristics of regulated DC link voltage against the variation in the load. To do this, it is adopted to three phase voltage type PWM converter with space vector pulse width modulation(SVPWM) method and synchronously rotating d, q axis current. Each d, q axis current is controlled independently. To control d, q axis current, Current control methods to be applied in system are PI current control and Predictive current control respectively. As a result, Transient response characteristic of Predictive current controller is superior to PI current controller.

공공도서관 이용자공간의 공간구성에 관한 연구

한화진,박승환,최무혁 대한건축학회 2004 대한건축학회논문집 Vol.20 No.4

The purpose of this thesis is providing basic data for making establishment of space composition for library users through satisfaction rate of using library and the requirement rate of survey about space composition in terms of library users. Conclusions are as follows. First, there are three types of space compositions considering library users such as a independent space composition(Type A), an open space using lobby(Type B), a multiple space composition(Type C). Prevalent Type B public libraries which are made since 1999 shows the fact that the public libraries space composition have been opened pretty much so far. Second, the result of satisfaction surveying according to space composition condition(Type A B C) shows that Type B and C have much more satisfaction than A has in terms of visual opening, connections with other rooms, furniture arrangements in the inside of the house. Third, on the result of perpendicular analyzing about education, information and culture space composition, the educational function plays an important role with the cultural functions in the main floor. However, at the same time, it is requested that reading space, information space, periodical journal sections should be arranged in it.

의사결정단위의 경영효율성평가에 대한 연구

노덕환,한승우 군산대학교 지역개발연구소 2000 地域開發硏究 Vol.12 No.-