수질 준거치 확대를 위한 유해물질 실태조사 방법

신호상(Ho Sang Shin),이재관(Jae Kwan Lee) 大韓環境工學會 2007 대한환경공학회지 Vol.29 No.6

3차원 도립진자 시스템의 구현 및 퍼지 제어

신호선,추준욱,이승하,이연정,Shin, Ho-Sun,Chu, Jun-Uk,Lee, Seung-Ha,Lee, Yun-Jung 한국지능시스템학회 2003 한국지능시스템학회논문지 Vol.12 No.2

새로운 3차원 도립진자 시스템의 구현 및 퍼지제어에 관하여 논한다. 기존의 1차원 또는 2차원 도립진자 시스템과 달리, 3차원 도립진자 시스템은 상하 운동을 포함하는 인간의 도립진자 제어행위를 적절히 모사할 수 있는 새로운 시스템이다. 3차원 도립진자 시스템의 특성 분석과 퍼지제어기 설계를 위하여 3축 직교로봇과 도립진자를 포함하는 기구부의 동력학식을 유도한다. 로봇의 여유자유도와 제한된 작업영역을 고려하면서 도립진자의 요오(yaw) 및 피치(pitch)각을 제어하기 위한 퍼지제어기 설계 방법을 제안한다. 개발된 PC 기반의 다축제어보드를 이용한 실험 결과를 통하여 제안된 시스템의 성능을 검증한다. The fuzzy control and implementation of a new three-dimensional(3-D) inverted pendulum system are addressed. In comparison with conventional 1-D and 2-D systems, the 3-D inverted pendulum system is a proper benchmark system to simulate human's control action which includes the up and down motion to stabilize an inverted pendulum. To investigate the characteristics of the 3-D inverted pendulum system and to design of a fuzzy controller, we derive dynamic equations of the mechanism including a 3-axis cartesian robot and an inverted pendulum. We propose a design method of a fuzzy controller of the yaw and pitch angles of an inverted pendulum. In the design, the redundant degree-of-freedom(DOF) of the robot and the constrained workspace are taken into account. The performance of the proposed system is proved by experimental results using a developed PC-based Multi-Motion Control(MMC) board.

베이지안 다층자료분석을 이용한 수도권 지역 치과병원의 규모에 관한 연구

신호성 ( Ho Sung Shin ),이정우 ( Jung Woo Lee ) 대한예방치과·구강보건학회 2005 大韓口腔保健學會誌 Vol.29 No.2

3차원 도립진자 시스템의 구현 및 퍼지 제어

신호선(Ho-Sun Shin),추준욱(Jun-Uk Chu),이승하(Seungha Lee),이연정(Yun-Jung Lee) 한국지능시스템학회 2003 한국지능시스템학회논문지 Vol.13 No.2

새로운 3차원 도립진자 시스템의 구현 및 퍼지제어에 관하여 논한다. 기존의 1차원 또는 2차원 도립진자 시스템과 달리, 3차원 도립진자 시스템은 상하 운동을 포함하는 인간의 도립진자 제어행위를 적절히 모사할 수 있는 새로운 시스템이다. 3차원 도립진자 시스템의 특성 분석과 퍼지제어기 설계를 위하여 3축 직교로봇과 도립진자를 포함하는 기구부의 동력학식을 유도한다. 로봇의 여유자유도와 제한된 작업영역을 고려하면서 도립진자의 요오(yaw) 및 피치(pitch)각을 제어하기 위한 퍼지제어기 설계 방법을 제안한다. 개발된 PC 기반의 다축제어보드를 이용한 실험 결과를 통하여 제안된 시스템의 성능을 검증한다. The fuzzy control and implementation of a new three-dimensional(3-D) inverted pendulum system are addressed. In comparison with conventional 1-D and 2-D systems, the 3-D inverted pendulum system is a proper benchmark system to simulate human's control action which includes the up and down motion to stabilize an inverted pendulum. To investigate the characteristics of the 3-D inverted pendulum system and to design of a fuzzy controller, we derive dynamic equations of the mechanism including a 3-axis cartesian robot and an inverted pendulum. We propose a design method of a fuzzy controller of the yaw and pitch angles of an inverted pendulum. In the design, the redundant degree-of-freedom(DOF) of the robot and the constrained workspace are taken into account. The performance of the proposed system is proved by experimental results using a developed PC-based Multi-Motion Control(MMC) board.

6.6kV 케이블 접속부에서 절연파괴에 의한 고장으로 인근 부하의 고장 파급 매커니즘 분석

신호전(Ho-Jeon Shin),이승재(Seung-Jae Lee),김재철(Jae-Chul Kim) 대한전기학회 2014 대한전기학회 학술대회 논문집 Vol.2014 No.11

표준화사망비와 지역결핍지수의 상관관계: 지역사회 통합결핍지수 개발

신호성,이수형,추장민,Shin, Ho-Sung,Lee, Sue-Hyung,Chu, Jang-Min 대한예방의학회 2009 예방의학회지 Vol.42 No.6

Objectives : The aims of this paper were to develop the composite deprivation index (CDI) for the sub-district (Eup-Myen-Dong) levels based on the theory of social exclusion and to explore the relationship between the CDI and the standardized mortality ratio (SMR). Methods : The paper calculated the age adjusted SMR and we included five dimensions of social exclusion for CDI; unemployment, poverty, housing, labor and social network. The proxy variables of the five dimensions were the proportion of unemployed males, the percent of recipients receiving National Basic Livelihood Security Act benefits, the proportion of households under the minimum housing standard, the proportion of people with a low social class and the proportion of single-parent household. All the variables were standardized using geometric transformation and then we summed up them for a single index. The paper utilized the 2004-2006 National Death Registry data, the 2003-2006 national residents' registration data, the 2005 Population Census data and the 2005-2006 means-tested benefit recipients' data. Results : The figures were 115.6, 105.8 and 105.1 for the CDI of metropolitan areas (big cities), middle size cities and rural areas, respectively. The distributional variation of the CDI was the highest in metropolitan areas (8.9 - 353.7) and the lowest was in the rural areas (26.8 - 209.7). The extent and relative differences of deprivation increased with urbanization. Compared to the Townsend and Carstairs index, the CDI better represented the characteristics of rural deprivation. The correlation with the SMR was statistically significant and the direction of the CDI effects on the SMR was in accordance with that of the previous studies. Conclusions : The study findings indicated mortality inequalities due to the difference in the CDI. Despite the attempt to improve deprivation measures, further research is warranted for the consensus development of a deprivation index.

유한요소해석을 이용한 동상 병렬포설시 불균형 전류 저감 방안에 대한 연구

신호전(Ho-Jeon Shin),김지호(Ji-Ho Kim),강갑석(Kab-Seok Kang),이향범(Hyang-Beom Lee),김재철(Jae-Chul Kim) 대한전기학회 2013 대한전기학회 학술대회 논문집 Vol.2013 No.10

SaaS(Software as a Service)의 정보제공과 관련된 서비스 품질 및 사용자 만족에 미치는 영향요인

신호경,이호,신지명,Shin, Ho-Kyoung,Lee, Ho,Shin, Ji-Myoung 한국과학기술정보연구원 과학기술정보센터 2011 Journal of Information Science Theory and Practice Vol.42 No.2

본 연구에서는 SaaS라는 정보제공 서비스를 대상으로, SaaS의 정보제공과 관련된 서비스 품질 및 사용자 만족에 영향을 미치는 요인들을 규명해 보고자 한다. 구체적으로, 서비스 품질 이론을 중심으로 SaaS 유연성과 맞춤성이 SaaS 서비스 품질과 사용자 만족에 미치는 영향을 연구하였다. 본 연구를 위해 문헌연구와 더불어 설문조사를 실시하였으며, 수집된 자료는 PLS(Partial Least Square)를 이용하여 측정모형 및 가설검증을 실시하였다. 분석결과, SaaS의 유연성은 SaaS의 서비스 품질과 사용자 만족에 긍정적 영향을 미치며, 사용자의 SaaS 서비스 품질도 사용자 만족에는 긍정적 영향을 끼치는 것으로 나타났다. 또한 SaaS 맞춤성은 SaaS 서비스 품질에는 유의한 영향을 미치나, SaaS 사용자 만족에는 유의한 영향을 미치지 않는 것으로 나타났다. 이외에 본 연구결과에 대한 의의 및 한계점을 논의하였으며, 향후 연구에 대한 시사점도 언급하였다. In this paper, our goal is to examine the factors of service quality and user's satisfaction in Software as a Service(SaaS). Based on the theoretical framework like service quality theory we develop and test a theoretical model, propose hypotheses and analyze the effects of SaaS' flexibility and customizability on the service quality and the satisfaction of SaaS' users. For this research, questionnaire survey was conducted with literature study and the PLS(Partial Least Square) was used to analyze the measurement model and hypotheses testing. The PLS analysis results indicate that SaaS' flexibility affects SaaS' service quality and the users' satisfaction and SaaS users' satisfaction is influenced by SaaS' service quality. Furthermore, SaaS' customizability affects SaaS' service quality, however, does not affect the users' satisfaction. Practical implications of these findings and future research implications are also discussed.

패혈증에 의한 급성 신부전의 예견인자로서의 APACHE III prognostic system과 Liano system의 유용성

신호진(Ho Jin Shin),이수봉(Soo Bong Lee),곽임수(Ihm Soo Kwak),나하연(Ha Yeon Rha),송상헌(Sang Heun Song),정현철(Hyun Chul Jung),배우형(Woo Hyung Bae),안승재(Seung Jae Ahn) 대한신장학회 2000 Kidney Research and Clinical Practice Vol.19 No.2

N/A Uncontrolled infection quite often 1eads to systemic inflammatory response syndrome and multi-organ dysfunction syndrome. Despite advances in medical knowledge and technology, the mortality of patient with sepsis is still 35-60%, and even reach up to 50-90% in septic patients having acute renal failure. The purpose of this study was to examine the characteristics and predictive factors of progression to acute renal failure(ARF) in sepsis. We analyzed the bacteriologic and laboratory data of 54 admitted patients with SIRS(systemic inflam-matory response syndrome) at Pusan National University Hospital from July 1997 to July 1999(ARF 23 vs non-ARF 31). Multiple factor which may influence mortality and progression to AEK in sepsis, were evaluated and measured on admission day. The following of results, 1) Of the 54 patients, 23 were ARF group and 31 were non-ARF group. Mean age were,52 years and 51 years. The mortality of ARF group and non-ARF group were 78% and 23%, Urine output, albumin, cholesterol, mean arterial blood pressure and evidence of underlying disease were not statistically different in each group. 2) Although the sources of sepsis could not identified in 9%(ARF), 23%(non-ARF), the others had the primary site of infections ' gastrointestinal tract(35% vs 29%), lung(30% vs 19%), genitourinary tract(9% vs 13%), skin(17% vs 16%). 3) Although statistically not different, gram-posi-tive bacterial infection was more common in ARF group(mainly staphylococcus aureus). Culture negative results were 4 patients(ARF), 1 patient(non- ARF). 4) APACHE III score in ARF group was higher than non-ARF group(48.1±16.5 vs 30.2±15.6). Liafio score in ARF group was higher than non-ARF group(39.1±13.0 vs 28.9±8.3). 5) APACHE III score and Liailo score in non- survivors were higher than survivors(APACHE III score:48.6±15.3 vs 28.1±14.0, Liaho score:37.9±12.0 vs 29.4±9.2) 6) APACHE lII system was positively correlated with Liaho system(r=0.512, p=0.001). In conclusion, APACHE III system and Liaho system were significant predictors of progression to ARF and mortality in sepsis. In the future, prospec-tive and multicenter studies are required to improve the method of treatment and the prognosis in sepsis.

남자 초등학교 저학년(1-3학년)생의 심폐기능 평가표 고안

신호수(Shin Ho-Su),이형국(Lee Hyung-Kug) 한국체육과학회 2001 한국체육과학회지 Vol.10 No.1

The purpose of this study was to make the basic data of cardiovascular function evaluation tables for 1-3 grade boy students of elementary school by Oxygen Uptake, Heart Rate, O₂Pulse and Ventilation, and to devise Cardiovascular Function Evaluation Tables in the anaerobic threshold level(AT) and the maximal level(max) for them Subjects were selected 51 students of 180 students from accidental sampling and they voluntarily participated in this experiment. Exercise load method was Bluce Treadmill Exercise Protocol. The mean and the standard deviation were calculated by dependent variables of this study from SPSS/PC+ statistic package. The significant difference in dependent variables according to ages was calculated from one-way ANOVA and post hoc was calculated from DUNCAN Method. The significant level was 5%. Evaluation tables about cardiovascular function were devised 5 point scales. Superior and poor was 15% each, good and below average was 20% each, and average was 30%. 1. Basic data about Oxygen Uptake(VO₂), Heart Rate(HR), O₂Pulse and Ventilation(VE) in anaerobic threshold level(AT) and maximum level(max). 1) AT-VO₂/㎏ and VO₂max/㎏ were not the significant difference among 8-10 years old and the significant level was 5%. 2) AT-Heart Rate and maximal Heart Rate were not the significant difference among 8-10 years old and the significant level was 5%. 3) AT-O₂pulse and O₂pulse-max were the significant difference among 8-10 years old and the significant level was 1%. 4) AT-VE and VEmax were not. the significant difference among 8-10 years old and the significant level was 5%.