미생물에 의한 슬러지 개량 및 탈수

조영희,윤성윤,박승조 ( Young Hee Cho,Sung Yoon Yoon,Seung Cho Park ) 한국폐기물자원순환학회(구 한국폐기물학회) 1993 한국폐기물자원순환학회지 Vol.10 No.3

뇌졸중환자의 일상생활 수행수준과 가족원의 스트레스

조영희,Cho, Young-Hee 한국지역사회간호학회 1999 지역사회간호학회지 Vol.10 No.2

The purpose of this study was to explore the degree of stress in caregivers caring for CVA patients and the level of daily living performance of CVA patients. The subjects for the study were caregivers of 112 CVA patients who enter a hospital or out-patient-department (OPD) at two Oriental medical hospital in Jeonbuk province. The survey instruments used in this study were Kang's ADL check list for daily living performance of patients and Choi's 4 sore scale for stress of caregivers. The survey was conducted from July 4th to August 30th in 1999. The survey results were analyzed with the Statistical Package for Social Science(SPSS) program and can be summarized as follows: 1. The level of daily living performance for the CVA patients was: 1) complete dependence (M=14.9, 13.1%), 2) complete independence (M=23.6, 20.9%), 3) incomplete independence (M=23.9, 21.0%), 4) incomplete dependence (M=26.6, 25%), 5) dependence and independence (M=23.0, 20.0%). The items for with there was a high level daily living performance were: 1) drinking (M=3.62), 2) eating(M=3.25). 3) position returning (M=3.18) : and the items for which there was a low level of daily living performance were: 1) ascending and descending stairs (M=2.08), 2) walking (M=2.47), 3) dressing and undressing trousers (M=2.55). 2. Degree of caregiver stress was: Mean=2.39 at 40 score. The items for which was a high level caregiver stress were: 1) medical fee (M=3.25), 2) being handicapped or recurrence (M=3.02) : and the items for which there was a low level of caregiver stress were: 1) discontinuity of patient's treatment (M = 1.98). 2) change of home atmosphere caused by patient's disease (M = 1.98), 3) desire of patient's knowing about disease (M= 1.99). 3. There was statistically significant difference in the degree of caregiver stress according to the following caregiver's demographic characteristics: education level (F=3.52, P=0.03). change of caregiver (F=5.41. P=0.02). 4. There was a statistically signifiant difference in the level of daily living performance according to the CVA patients demographic characteristics: patient's paralytic status (F=4.48, P=0.01), duration of disease (t=2.76, P=0.03). 5. There was significant difference in degree of caregiver stress according to the CVA patient's demographic characteristics: CVA status (F=4.75, P=0.01). 6. There was statistically significant difference in the degree of caregiver stress according to the level of daily living performance in CVA patients(r=-0.482, P<0.00).

초음파 용탕처리를 활용한 Al-Si 합금의 주조조직 미세화 /개량화 사례

조영희,이정무,Young-Hee Cho,Jung-Moo Lee 한국주조공학회 2023 한국주조공학회지 Vol.43 No.4

유산균의 미세캡슐화 기술

조영희,Cho, Young-Hee 한국축산식품학회 2013 축산식품과학과 산업 Vol.2 No.3

은닉 마코프 모델을 이용한 시계열 데이터의 의미기반 패턴 매칭

조영희(Young-Hee Cho),전진호(Jin-Ho Jeon),이계성(Gye-Sung Lee) 한국콘텐츠학회 2008 한국콘텐츠학회논문지 Vol.8 No.5

시계열 데이터에서 패턴을 찾고 검색하는 문제는 여러 분야에서 오랫동안 관심을 가지고 연구되어 왔다. 본 논문은 시간의 흐름에 따라 값의 변화를 나타내는 시계열 형태의 주식 데이터에 적용할 수 있는 새로운 패턴 매칭 방법을 제안한다. 우선, 의미를 기반으로 패턴을 정의하고 정의된 패턴에 일치하는 데이터들을 추출하여 학습모델을 작성한다. 그리고 새로운 질의 시퀀스가 어떤 종류의 패턴과 일치하는가는 각 학습 모델과의 유사도를 측정하여 결정하게 된다. 학습 모델은 시계열을 잘 설명하는 것으로 알려진 은닉 마코프 모델을 사용하여 작성하였다. 실험 결과 은닉 마코프 모델의 특성을 사용하여 생성된 각 학습 모델은 주어진 의미를 잘 나타내는 패턴을 생성하였으며, 새로운 시퀀스가 주어졌을 때 일치하는 패턴에 따라서 시퀀스가 가진 의미를 파악할 수 있었다. Pattern matching and pattern searching in time series data have been active issues in a number of disciplines. This paper suggests a novel pattern matching technology which can be used in the field of stock market analysis as well as in forecasting stock market trend. First, we define conceptual patterns, and extract data forming each pattern from given time series, and then generate learning model using Hidden Markov Model. The results show that the context-based pattern matching makes the matching more accountable and the method would be effectively used in real world applications. This is because the pattern for new data sequence carries not only the matching itself but also a given context in which the data implies.

CRM을 위한 은닉 마코프 모델과 유사도 검색을 사용한 시계열 데이터 예측

조영희(Young-Hee Cho),전진호(Jin-Ho Jeon),이계성(Gye-Sung Lee) 한국컴퓨터정보학회 2009 韓國컴퓨터情報學會論文誌 Vol.14 No.5

시계열의 예측에 대한 문제는 오랫동안 많은 연구자들의 연구의 대상이었으며 예측을 위한 많은 방법이 제안되었다. 본 논문에서는 은닉 마코프 모델(Hidden Markov Model)과 우도(likelihood)를 사용한 유사도 검색을 통하여 향후 시계열 데이터의 운행 방향을 예측하는 방법을 제안한다. 이전에 기록된 시계열 데이터에서 질의 시퀸스(sequence)와 유사한 부분을 검색하고 유사 부분의 서브 시퀸스를 사용하여 시계열을 예측하는 방법이다. 먼저 주어진 질의 시퀸스에 대한 은닉 마코프 모델을 작성한다. 그리고 시계열 데이터에서 순차적으로 일정 길이의 서브 시퀸스를 추출하고 추출된 서브 시퀸스와 작성된 은닉 마코프 모델과의 우도를 계산한다. 시계열 데이터로부터 추출된 서브 시퀸스 중에서 우도가 가장 높은 시퀸스를 유사 시퀸스로 결정하고 결정된 부분 이후의 값을 추출하여 질의 시퀸스 이후의 예측 값을 추정한다. 실험 결과 예측 값과 실제 값이 상당한 유사성을 나타내었다. 제안된 방법의 유효성은 코스피(KOSPI) 종합주가지수를 대상으로 실험하여 검증한다. Prediction problem of the time-series data has been a research issue for a long time among many researchers and a number of methods have been proposed in the literatures. In this paper, a method is proposed that similarities among time-series data are examined by use of Hidden Markov Model and Likelihood and future direction of the data movement is determined. Query sequence is modeled by Hidden Markov Modeling and then the model is examined over the pre-recorded time-series to find the subsequence which has the greatest similarity between the model and the extracted subsequence. The similarity is evaluated by likelihood. When the best subsequence is chosen, the next portion of the subsequence is used to predict the next phase of the data movement. A number of experiments with different parameters have been conducted to confirm the validity of the method. We used KOSPI to verify suggested method.

초등학교 3, 4, 5학년 의미단위 끊어읽기와 빈칸채우기로 살펴 본 묵독유창성 비교연구

조영희 ( Cho Young Hee ),고혜정 ( Koh Hye Jung ),김동일 ( Kim Dong Il ) 서울교육대학교 초등교육연구소 2017 한국초등교육 Vol.28 No.3

묵독유창성이란 글을 소리내지 않고 눈으로 읽는 빠르고 정확한 자동적 해독과정이라 할 수 있으며 초등학교 고학년에서는 학교 수업현장에서 음독유창성보다 묵독유창성 활용이 급증한다. 묵독유창성은 빈칸채우기와 의미단위 끊어읽기로 측정할 수 있으며, 본 연구에서는 이 두 검사를 통해 측정된 묵독유창성이 학년수준별로, 성취수준별로 읽기이해력에 어떠한 영향을 미치는지를 알아보고자 하였다. 그 결과, 묵독유창성은 학년이 높아짐에 따라 계속적으로 발달하며, 고성취 학생들은 의미단위 끊어읽기가, 저성취 학생은 빈칸채우기와 의미단위 끊어읽기의 묵독유 창성이 읽기이해에 영향을 주고 있는 것으로 나타났다. 또한 3학년은 다른 학년보다 묵독유창성이 읽기이해를 설명하는 변량이 높게 나타났으며, 4학년과 5학년은 저성취 집단에서만 빈칸채우기형태의 묵독유창성이 읽기이해에 영향을 주고 있는 것으로 나타났다. 이상의 연구결과를 통해 초등학교 3, 4, 5학년 학생들의 읽기이해와 묵독유창성 능력에 관해 논의하였다. Silent reading fluency is the ability to read a text accurately, quickly and silently. More recently, silent reading fluency is more important in upper grades of elementary than oral reading fluency because they have to read silently for learning in the class. Silent reading fluency is measured using maze test and reading sense group. The purpose of this study is to analyze the effect silent reading fluency on reading comprehension by grade level and reading comprehension achievement level. As a result, silent reading fluency increases with grades. And sense group reading ability affects on reading comprehension of high achieving students. In order hands, both sense group reading and maze affect on reading comprehension of low achieving students. Also, silent reading fluency affects reading comprehension of both high achieving and low achieving third grade. However, silent reading fluency affects reading comprehension of only low achieving students in fourth and fifth grade. Implication of these results and suggestions for follow-up studies were discussed.

뇌졸중환자의 자가간호 수준과 가족구성원의 간호요구

조영희(Cho Young Hee) 기본간호학회 2000 기본간호학회지 Vol.7 No.2

아세안 개발격차와 동아시아 지역협력

조영희 ( Young Hee Cho ) 한국세계지역학회 2008 世界地域硏究論叢 Vol.26 No.1

원저(原著) : 성분채집기에 따른 성분채집혈장의 유리혈색소량

조영희 ( Young Hee Cho ),한희숙 ( Hee Sook Han ),오흥범 ( Heung Bum Oh ) 대한임상병리사협회 1997 임상수혈검사학회 발표자료집 Vol.4 No.1

In order to satisfy the self-sufficiency of plasma, the Korean Red Cross has opened many blood donation offices, where many apheresis machines have been installed for plasmapheresis. It is very important for the donors to feel comfortable on plasmaphersis because they may donate frequently. Plasma hemoglobin can cause problem to both donors and patients. In this study, plasma hemoglobin was compared between pheresis machines (Fenwal Autopheresis C system vs Fenwal Autopheresis C system mini instrument vs Haemonetics Mobile collection system vs Haemonetics Plasma collection system). Plasma hemoglobin in FFP was also measured. Amount (Mean ± SD) of plasma hemoglobin by Auto-C and Mini Auto-C of Fenwal`s was 2.87 mg/dL ± 2.02 mg/dL and 3.86 mg/dl ± 2.77 mg/dL respectively. And that of PCS and MCS was 2.86 mg/dL ± 1.56 mg/dL and 1.94 mg/dL ± 2.58 mg/dL respectively. There was no statistically significant difference between machines of the same companies. However amount of free hemoglobin was lower in plasma collected by Haemonetics (p=0.013) even though amount of free hemoglobin generated by each machines of both companies was with in the normal range of human plasma hemoglobin. Amount of free hemoglobin in FFP was in the middle between that of Fenwal`s and Haemonetics`. High level of free hemoglobin by Fenwal`s is thought to be caused by membrane filter that is installed to prevent red cell contamination from plasma. This results dosen`t mean that red cell itself is more contaminated in Fenwal`s. Considering that amount of free hemoglobin in all the plasma was within the normal range, it can be concluded that all the machines tested in this study can be used doesn`t cause any problem occured by free hemoglobin.