http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
고영주,배주성,Ko, Young Zoo,Bae, Ju Seong 대한토목학회 1991 대한토목학회논문집 Vol.11 No.3
본 연구에서는 ASTM E561-80에서 제안한 방법과는 달리, 반복하중시 측정된 각각의 compliance를 상호비교인자로 활용하여 증가 균열길이를 간접적으로 구하고, 이 값들을 균혈성장 동안에 흡수된 비탄성 에너지를 고려한 변형에너지 해방율개념에 적용하여 구한 저항곡선의 해석으로부터 콘크리트의 불안정 균열성장 개시점을 구하였으며, 또한 굵은골재 최대수치와 시편의 두께변화가 임계파괴인성치에 미치는 영향 등을 고찰하였다. This experimental research evaluated the length of crack extension with the measured compliances as the mutual comparison factors instead of the method proposed in ASTM E561-80. And this research measured the R-curves with the application to the concept of the strain energy release rate that was formulated from the inelastic energy absorbed during the crack growth. With the interpretation of R-curves, this research obtained the starting point of the unstable crack growth, and compared the values of critical fracture toughness with each other, and then examined the effects of variations of the maximum size of coarse aggregate and the thickness of specimen on the values of the critical fracture toughness.
시멘트콘크리트 포장체의 거동연구를 위한 축소모델 배합의 재료적 상사성
고영주,이용우,배주성,Ko, Young-Zoo,Lee, Yeoung-Woo,Bae, Ju-Seong 한국콘크리트학회 1999 콘크리트학회지 Vol.11 No.2
본 연구는 시멘트콘크리트 포장체의 거동연구를 위한 축소모형실험에 앞서 모형시험체의 제작에 가장 중요한 변수인 재료적 상사성을 확보하기 위한 방법론을 기술하였다. 현재 고속도로의 콘크리트 포장 배합설계기준과 동일한 배합비로 제작한 시험편과 골재의 최대치수를 축소하고 W/Cm C/a, S/a, 골재종류를 변수로 하여 총 224개의 원형공시체를 제작하여 그들의 응력-변형률 거동을 분석하므로써 재료적 상사성을 만족하는 모형배합비를 도출하였다. 모형콘크리트 배합비로 쇄석은 C/a 31%에서 S/a 28%, 강자갈은 C/a 30%일 때 S/a 27%가 가장 적합한 것으로 나타났다. 이는 실내 모형실험에 의해 콘크리트포장체의 거동연구를 하고자 할때 모형실험에 대한 신뢰성을 향상시키고, 향후 연구의 기초자료를 제공할 수 있으리라 판단된다. The objective of this study is to provide the information on the small-scale model mix proportion when the behavior of prototype concrete pavement is studied through small-scale model experiments. However it is difficult to obtain a model material to simulate the prototype concrete by scaling the individual components according to the laws of similitude. In this paper, the stress-strain behavior in uniaxial compression is used as a means to correlate material similitude between the prototype and the model concrete. Based on the results of experiments, we compared the stress-strain curves of prototype and model concrete mixes using a nondimensional basis. In order to simulate the stress-stain curves of prototype concrete, it is important that various mix proportions of model concrete selected properly which are varied from aggregate grading, cement-aggregate and sand-aggregate ratio.
고영주(Young Ju Ko),전진숙(Jin Sook Cheon),변현우(Hyun Woo Byun),이지상(Ji Sang Lee),김강률(Kang Ryul Kim),오병훈(Byoung Hoon Oh) 대한생물치료정신의학회 2010 생물치료정신의학 Vol.16 No.2
Objectives : The numbers of geriatric patients visiting emergency department have been increasing with the increase of geriatric population, especially among those with psychiatric problems. The aims of this study are to know the frequency and trend of visiting emergency department among elderly psychiatric patients, to analyse their demographic and clinical characteristics, and to identify related factors. Methods : Among elderly psychiatric patients with age over 60(N=276) who had visited Emergency Medical Center, Kosin University Gospel Hospital from 2000 thru 2009, medical records or electronic medical records of 187 cases were analysed by three psychiatrist who were blind to those patients. Results : 1) The numbers of elderly psychiatric patients were gradually increasing for 10 years versus total numbers of patients(0.18% in 2000, 0.25% in 2009) and versus total numbers of geriatric patients(0.81% in 2000, 0.87% in 2009). However, The increase of elderly psychiatric patients versus total numbers of psychiatric patients became so rapid as 2.5-3 times in 2006(7.58% in 2000, 27.54% in 2009). 2) Most frequent demographic and clinical characteristics of the elderly psychiatric patients visiting emergency department for 10 years were sixties(66.9%), urban dwellers(92.5%), visting during weekdays(67.9%) and stay for 6-24 hours(43.3%)(p<0.05, respectively). The managements were resulted in discharge against medical advice(30.5%), admission to other department(26.7%), discharge after management(19.8%), admission to psychiatric ward(16.6%), transfer to other hospital(3.7%) and being expired(2.7%). 3) The most frequent reasons for visiting emergency department of elderly psychiatric patients were suicidal attempt(13.4%), pain(10.7%), consciousness change(10.7%), continuos alcohol drinking(10.2%) in order. The most frequent psychiatric diagnoses were alcohol dependence(20.9%), depression(19.3%), adjustment disorder(11.2%), delirium(10.7%), anxiety disorder(9.6%) and dementia(8.6%). The most frequent comorbities were cardiovascular diseases(27.3%), hepatic and gastrointestinal diseases(13.9%), neurological diseases(12.3%), endocrinological diseases(10.7%), respiratory diseases(8.6%), renal and urinary diseases(7.5%) and cancer(7.0%) in order. 4) There was significant correlation between psychiatric diagnosis and gender of elderly psychiatric patients visiting emergency department. The causes were significantly correlated with route, arrival time and stay hours. The route of visiting emergency department was significantly correlated with arrival time and stay hours. There was significant correlation between stay hours and management in the emergency department. Conclusion : Elderly psychiatric patients required much time and resources in the emergency department. To solve the rapidly growing problems related to the emergency care for the elderly psychiatric patients, analysing data of visiting emergency department at first and then active preparation of medical personnel shoud be preceded.
탈추격 혁신을 위한 정부출연연구기관의 노력과 과제: 한국화학연구원을 중심으로
성지은 ( Ji Eun Seong ),고영주 ( Young Ju Ko ) 기술경영경제학회 2013 Journal of Technology Innovation Vol.21 No.2
본 연구는 출연(연)을 기술·정책·시장 환경 변화 등 외생적 변수를 인지하여 내생적인 변화를 이끌어내는 주체로 두고 그 대표적인 사례로 한국화학연구원의 탈추격 혁신 노력을 살펴보았다. 화학연은 2000년대 들어 기술혁신 환경의 변화와 PBS 제도 등의 구조적 한계를 극복하고자 조직 전반에 걸쳐 다양한 변화를 시도하였다. 장기적인 내부 역량강화와 기술 패러다임 변화에 대응하기 위해 조직 및 R&D 관리체계를 탈추격 개방형 혁신체계로 개편했으며, 오염처리에서 오염예방을 위한 그린화학(green chemistry)을 적극 추진해왔다. 최근에는 지구 재상과 복원을 위한 미래화학신기술로서 블루화학(blue chemistry)을조직 목표로 설정하였다. 또한 기술개발에서 확산 및 활용으로 R&D 방향을 전환하면서 특허관리 및 기술마케팅을 선진화하였으며 중소기업지원, 사회적 기업과의 협력을 시도하면서 소외질병 치료제 개발, 적조 및 녹조 문제, 구제역 침출수 문제 등 여러 가지 사회 문제에 적극적으로 대응하고자 노력하였다. 이와 같은 화학연 사례는 출연(연)의 다중적 지배구조, 예산 및 인력제도의 부정합, 양적 성과 중심 평가시스템 등의 구조적인 한계에도 불구하고 정부의 정책 및 제도 개선 이전에 조직의 다양한 내생적 노력을 통해 지속적인 혁신이 가능함을 보여주고 있다. This study analyzes the government-funded research institutions as players which derive inner transition based on technology, policy and market environment changes. In this study, the main case is KRICT(Korea Research Institute of Chemical Technology) which tries to make post catch-up innovation in the organization. This institution has attempted to overcome the limitation such as change of technology paradigm and PBS(Project Based System) since 2000``s. Responding to the needs of technology convergence and innovation by the paradigm change, KRICT has reformed organization and R&D management system prospectively. And this institution sets the goal like development of natural friendly technologies, small and medium-sized business support, and providing countermeasures of social problems. This case shows possibility of continuous innovation. There are some structural limitation like budget restriction, multiple organization structure, and biased quantitative assessment, but endogenous efforts of government -funded institutions make the new paradigm of post catch-up innovation.