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이진희,신기일,Lee, Jin-Hee,Shin, Key-Il 한국통계학회 2007 응용통계연구 Vol.20 No.3
표본조사에서 항목무응답 발생 시 결측대체에 사용되는 일반적인 방법은 결측변수와 관계 있는 보조변수를 이용하는 것이다. 최근 이진희 등 (2006)은 2002년 강원지역의 농가경제 자료를 이용하여 표본조사에서 공간통계를 이용한 결측대체 (missing imputation) 방법을 비교하였으며, 자료들 사이에 지역적 상관이 존재할 때 이를 이용한 결측대체가 효율적임을 보였다. 본 논문에서는 이를 확장한 개념으로, 강원지역의 2000-2002까지의 월별 자료가 공간상관과 시계열상관이 존재함을 확인하고 이 관계를 결측대체에 이용하였다. 또한 공간상관과 시계열상관이 모두 존재할 경우 공간시계열 모형을 이용한 결측 대체 방법이 공간모형을 이용하였을 때에 비해 더 효율적임을 모의실험을 통해 확인하였다. It is a common practice to use the auxiliary variables to impute missing values from item nonresponse in surveys. Sometimes there are few auxiliary variables for missing value imputation, but if spatial and time autocorrelations exist, we should use these correlations for better results. Recently, Lee et al. (2006) showed that spatial autocorrelation could be efficiently used for missing value imputation when spatial autocorrelation existed, using the data from the farm household economy data in Gangwon-do, 2002. In this paper, we present au evaluation of spatial and space-time nonresponse imputation methods when there exist spatial and time autocorrelations using the monthly data during 2000-2002 from the same data previously used by Lee et al. (2006). We show that space-time imputation method is more efficient than the other through the numerical simulations.
춘란(Cymbidiym goeringii REICHB. fil)의 메탄올 추출물로부터Sterol 화합물의 분리
이진희,정인식,권병목,김성훈,김동현,방면호,박미현,백남인,방성훈,김대근,양혜정 한국응용생명화학회 2005 Journal of Applied Biological Chemistry (J. Appl. Vol.48 No.3
Cymbidium goeringii REICHB. fil was extracted with 80% MeOH and solvent-fractionated with EtOAc, n-BuOH and H2O, successively. From EtOAc fraction, three sterols were isolated on repeated silica gel and ODS column chromatographies. The chemical structures were determined as β-sitosterol (1), daucosterol (2) and ergosterol peroxide (3) by NMR, MS and IR, which is the first to be isolated from Cymbidium goeringii REICHB. fil. 춘란을 80% MeOH로 추출하고, 얻어진 추출물을 EtOAc, n-BuOH 및 H2O로 용매 분획하였다. EtOAc 분획에 대하여 column chromatography를 반복하여 3종의 sterol을 분리하였다.각각에 대하여 2D-NMR을 포함한 스펙트럼 데이터의 해석과 문헌 자료를 조사하여 β-sitosterol, daucosterol, ergosterol peroxide로 구조를 결정하였다. 이 화합물들은 춘란에서 이번에 처음 분리, 보고되었다.
이진희,이승애,함용희,양명주,김옥선,Lee, Jin-Hi,Lee, Sung-Ae,Ham, Yong-Hee,Yang, Myong-Ju,Kim, Ok-Sohn 한국의료질향상학회 1997 한국의료질향상학회지 Vol.3 No.2
Background : In many Nursing Delivery System, Nursing Department at D Hospital had used to traditional nursing practice model what is called functional activities based system. It has a lot of merit that carried out specialized and rapid works but tend to ignore indivisual professional responsibility and task-based work assignments. In addition this system showed high turnover rates due to heavy workload, timesum of handing over duties, lack of support from peers and interstaff communication. So we performed conversion of Nursing Delivery System to My Patients Nursing Care System for providing comprehensive nursing to patient and reducing turnover rates and increasing job satisfaction to nurse. Method : 1. 1st step(96.4.9): Detected the problem of Nursing delivery System and estabilished improving planning 2. 2nd step(96.4.26): Visited other hospital on job training 3. 3th step(96.4.29): Discussed to premonitoring problem after conversion Nursing Delivery System and prepared structure 4. 4th step(96.5.6): My Patients Nursing Care System practical application 5. 5th step(96.7.20): Held complementary meeting 6. 6th step(96. 7): The other ward application 7. 7th step(96. 10): Extended application to whole wards Results: 1. Workload: (1) reduction(55.6%) (2) addition(44.4%) 2. Strong points after conversion: (1) decreased timesum of handing overduties (35.2%) (2) increased responsibility(33%) (3) broaden nurse's outlook to duties(14.8%) 3. Shortcoming after conversion: (1) understanding difficulties except my patient(57.8%) (2) weak teamwork(23.3%) (3) intensive stress to low grade nurse(12.2%) 4. Effective complemental way: (1) manpower(76.7%) (2) conversion of though (8.9%) (3) education(14.4%) 5. Patient's satisfaction: (1) satisfaction(64%) (2) no effect(36%) 6. Physician and peer's satisfaction: (1) satisfaction(12.5%) (2) dissatisfaction(21.6%) (3) no interest(44.3%) 7. Nurse's satisfaction: (1) satisfaction(74.7%) (2) dissatisfaction(5.5%) (3) unknown(20.5%) 8. Want to continued: (1) want(76.4%) (2) try to any other system(18%) Conclusion : Even though Nursing Delivery System conversion still has many problem, we gained more merits than traditional nursing delivery system. So we suggest that My Patients Nursing Care System should be encouraged for comprehensive nursing care and satisfaction to nurses.
도농통합형 도시에 있어서 생물서식처 공간특성에 관한 연구(II) - 천안시 성환읍의 토지이용변화추이와 녹지구조변화를 중심으로 -
이진희,방광자,김훈희,Lee, Jin-Hee,Bang, Kwang-Ja,Kim, Hoon-Hee 한국환경복원기술학회 1999 한국환경복원기술학회지 Vol.2 No.1
The mixed rural city is adjusting to change by urbanization. The recent landcover change in mixed rural city is an important factor that changes structure and function of regional ecosystem. Landscape ecology is an integrated ecology widely available for environmental science such as nature conservation and sustainable land-use planning. As the concern about environmental quality rises, many studies are trying to create and conservate for biotop. The creation of biotop is related to the plan and management of the effective landuse because the important factor to change the structure and function of ecological area in the country. This study was carried out to establish the foundation of the landuse plan to analyze the change of landuse and to plan the scheme in creating biotop and landuse. We used the approach of ecological landscape and using landscape indices with RS(Remote Sensing) and GIS(Geographic Information System) technology, spatio-temporal variations of areas and distribution of forest patches were examined in the Sunghwan in Chonan from 1985 to 1996. A result of this study showed that the area of forest and paddy decreased by urban sprawl. The size of patch in the forest and agriculture had been smaller and irregular form, heterogeneity of size of forest and agriculture patches within sub-basin was increased, pattern of forest and agriculture patches decreased the corridor and network from 1985 to 1996.