시공간 분석을 이용한 외래 의료이용의 지역적 차이 분석

신호성 ( Ho Sung Shin ),이수형 ( Sue Hyung Lee ) 한국지리정보학회 2012 한국지리정보학회지 Vol.15 No.4

본 연구는 시공간분석을 이용하여 주요 만성질환인 고혈압, 당뇨병, 관절증과 총의료이용에 있어 지역별 외래의료이용 차이를 살펴보았다. 분석자료는 보건복지부와 한국보건사회연구원에서 발간하는 1996, 1999, 2002, 2005, 2008년 환자조사 자료를 이용하였으며 분석방법으로는 베이지안 계층적 시공간모형(bayesian hierarchial spatio-temporal model)을 이용하였다. 이때 지역의 공간적 상관성은 convolution CAR 모형을, 시간적 상관성은 Ornstein-Uhlenbeck 방법을 적용하여 분석하였다. 분석결과 질환별로 의료이용에 있어 지역적 차이가 존재하였다. 총의료 이용의 경우 시·군지역보다 대도시인 구지역에서 높은 상대위험비를 보인반면, 만성질환인 고혈압, 당뇨병, 관절증은 총의료이용과는 달리 강원도, 충청남북도, 전라남북도, 제주도 등 농어촌 지역에서 전국평균보다 높은 의료이용(상대위험비)을 보였다. 특히 고혈압은 부산경남 해안가 지역과 강원, 경기, 경북, 충청남도, 전북 등에서 높은 의료이용을 보였고, 관절증은 경기, 강원 일부와 충북, 충남, 전북, 전남, 경북, 경남지역 등에서, 당뇨병은 경기, 서울, 부산, 전라남북, 충청일부 지역에서 상대적으로 높은 의료이용을 보였다. 본 연구는 기존 연구와는 달리 공간적, 시간적 상관성을 고려함으로써 지역단위 분석시 공간적, 시간적 상관성을 고려하지 않음으로써 발생하는 통계적 오류를 최소화하였다. The purpose of this study was to examine the regional disparity of ambulatory health care utilization considering spatio-temporal variation in South Korea during 1996-2008(precisely, in 1996, 1999, 2002, 2005, and 2008) using bayesian hierarchial spatio-temporal model. The spatial pattern uses an intrinsic gaussian conditional autoregressive (CAR) error component. Ornstein-Uhlenbeck method was applied to detect the temporal patterns. The results showed that substantial temporalgeographical variation depending on diseases exists in Korea. On the Contrary to the pattern of total outpatient utilizations, for example, the areas that chronic diseases distributed relatively high were most in rural where the proportion of elderly population was higher than in the urban. Chungcheongnam-do, Junlabuk-do, and Kyeongsangbuk-do had higher risks in hypertension, whereas arthritis was higher risk in the Kyeonggi-do, Chungcheongbuk-do, Junlanam-do, and Junlabuk-do. The results of this study suggested that the effective health intervention programmes needed to alleviate the regional variation of health care utilization. These outcomes also provided the foundation for further investigation of risk factors and interventions in these high-risk areas.

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.

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.

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%.

Load Shedding Algorithm Using the Linear Programming for Congestion Problems by a Major Contingency

신호성(Ho-Sung Shin),김병수(Byoung-Su Kim),송경빈(Kyung-Bin Song),한승호(Seung-Ho Han),이학주(Hak-Ju Lee),권성철(Seong-Chul Kwon) 대한전기학회 2005 대한전기학회 학술대회 논문집 Vol.2005 No.7

외부 긴장력을 이용한 철근콘크리트 교각의 심부구속효과 분석

신호진(Shin, Ho Jin),이영복(Lee, Young Bok),이대형(Lee, Dae Hyung),정영수(Chung, Young Soo) 한국콘크리트학회 2011 한국콘크리트학회 학술대회 논문집 Vol.2011 No.5

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.

대용량 풍력에너지의 계통 연계시 전압변동을 고려한 그룹 구성에 관한 연구

신호전(Ho-Jeon Shin),이승재(Seung-Jae Lee),김진석(Jin-Seok Kim) 대한전기학회 2019 전기학회논문지 Vol.68 No.3

A number of countries around the world have the goal to enhance the ratio of renewable energy and Korea is one of them. When the large capacity renewable energy is installed, it is intensely installed in one complex, and in order to obtain the effective ingredient of the maximum power generation, it operates as close to the power factor 1. The single group operation of the large capacity wind power generator greatly changes the voltage (V) of the inverter terminal connected to the wind power generator regardless of the reactive power. Over-voltage frequently occurs with the case of generating insulation destruction of inverter facility with the voltage change. In particular, if the semiconductor of the inverter is current-type element, it may be even more vulnerable to the over-voltage. In this paper, it analyzes the facility response related to the supply and absorption of reactive power in the relationship with the electrical power system to be connected for the over-voltage arising when installing the large capacity wind power energy, and it intends to compare and analyze the effect on the power conversion equipment and scope of voltage change following the installation type under the renewable energy source’s design.