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평면 광스플리터와 리본형 광파이버의 정밀 결합을 위한 V-groove연결소자의 제작
정석희,서화일,오현철,김영철,Jeong, Seok-Hee,Seo, Hwa-Il,O, Hyun-Cheol,Kim, Young-Cheol 한국반도체디스플레이기술학회 2007 반도체디스플레이기술학회지 Vol.6 No.3
V-groove device was fabricated for precision coupling of planar optical splitter and optical fibers. V-groove was made through select wet etching of Si wafer by using KOH solution. Etching rate and surface roughness were checked, changing KOH composition(10, 20, 30, 33, 40 wt.%) and etching temperature (50, 60, 70, $80^{\circ}C$) to fabricate V-groove device effectively. Etching rate was the fastest as $1.84\;{\mu}m/min$ in case of etching by 20 wt.% KOH on $80^{\circ}C$, surface roughness was the best in case of etching by 33 wt. % KOH on $80^{\circ}C$.
간호행정학회지 게재불가논문 분석 [2012년~2015년 6월]
정석희(Seok Hee Jeong),이태화(Tae Wha Lee),유소영(So Young Yu),서명희(Myoung Hee Seo) 한국간호행정학회 2015 간호행정학회지 Vol.21 No.5
The purpose of this study was to analysis the manuscripts rejected for publication in the Journal of Korean Academy of Nursing Administration during the last three years six months (2012~2015 Jun). Methods: Seventy eight rejected manuscripts were analyzed focusing on manuscripts characteristics, such as rejection rates, year of submission, occupation of first author and corresponding author, number of authors, funding, thesis or dissertation, article type, study participants, number of reviews prior to rejection, and 3rd reviewer. Also reviewers`` quantitative evaluation scores and subjective comments were analyzed. Reviewers’ subjective comments were analyzed using content analysis methodology. Results: The mean rate for manuscript rejection was 28.9% and for quantitative research, qualitative research, and review papers the quantitative evaluation scores were 2.54±0.70, 2.39±0.69, and 2.39±0.69 out of 5 points, respectively. The most frequent subjective comment on rejected manuscripts was ‘lack of rationale for research need’. Conclusion: In this study the characteristics and the reasons for rejecting manuscripts were identified. These findings can be used in developing effective strategies for researchers, reviewers and editors to improve the quality of research and research reviews of nursing administration research.
간호사와 의사 간의 윤리적 딜레마 사례개발과 간호사의 의사결정 양상
정정미(Jeong Mee Jeong),박정현(Jung Hyun Park),정석희(Seok Hee Jeong) 한국간호행정학회 2013 간호행정학회지 Vol.19 No.5
This study was done to develop a realistic clinical case and investigate nurses` decision-making about nurses` ethical dilemmas with physicians in the fields of nursing practice. Methods: Case development and a hypothetical case study were used. Participants were 52 nurses. Data were collected in 2012 and 2013 using an open-ended questionnaire and interviews and analyzed using content analysis and descriptive statistics. Results: Various dilemma situations between nurses and physicians, such as violence, deathbed, medication·prescription, and physicians` incapacity·unfairness, were suggested. A clinical dilemma case about medication·prescription was developed based on nurses` experiences. Nurses` responses to the developed case situation and responses were classified into five types. Various reasons were given for making the decisions and about 56% of the nurses decided to notify their supervisor without deleting nursing records. Conclusion: In this study, a realistic clinical dilemma case was developed, and nurses` ethical decision making was identified. These findings can be used in developing effective strategies for nurses to solve ethical dilemmas and to improve ethical decision-making abilities.
가토 정맥에서 CT 조영제의 혈관외유출 예방을 위한 EDA 시스템의 실험적 연구
권대철,정석희,양성환,조문선,장근조,김순근,유병규,이종석,Kweon, Dae-Cheol,Jeong, Seok-Hee,Yang, Sung-Hwan,Cho, Mun-Son,Jang, Keun-Jo,Kim, Sun-Geun,Yoo, Beong-Gyu,Lee, Jong-Seok 한국의학물리학회 2006 의학물리 Vol.17 No.4
CT 검사에서 조영제 혈관외유출을 예방하기 위해 EDA 시스템을 개발하여 가토를 대상으로 실험적으로 혈관외유출의 검출 효율을 평가하였다. 7마리의 가토 IV 정맥 부위에 EDA 시스템의 스트레인게이지를 부착하여 조영제를 주입하면서 혈관외유출 검출 효율을 평가하였다. 조영제의 혈관외유출은 7건으로 혈관외유출 용량 $14{\sim}23ml$ (평균 18.86 ml), 혈관외유출 발생시간 평균 11.29초, 평균압력 109.71 psi, EDA 시스템에서 스트레인게이지의 분해능 평균 512.18, 진양성 7건, 진음성 19건, 위양성 2건이었고, 민감도 100%, 특이도 90%로 나타났다. 개발된 EDA 시스템을 가토에 실험적으로 적용하여 소량의 혈관외유출 조영제를 검출하는 효율이 있어 혈관외유출을 예방하는 효과가 있다. To assess the ability of an extravasation defection accessory (EDA) to detect the clinically important extravascular Injection of iodinated contrast material that was delivered with an automated mechanical power injector. The purpose of this study was to assess the ability of this device during clinically important episodes of extravasation. The EDA system was composed of a strain gage, an amplifier and a computer-based system. In the rabbit experimental cases, there were seven true-positive cases (range of the extravasation volumes: $14{\sim}23 ml$). The algorithm results showed seven true-positive cases (range of the extravasation volumes: $7{\sim}16ml$), nineteen true-negative cases, two false-positive cases and no false-negative cases. The EDA system had a sensitivity of 100% and a specificity of 90% for the detection of clinically important extravasation. The EDA system had good sensitivity for the detection of clinically important extravasation and the EDA system has the clinical potential for the early detection of extravasation of the contrast medium that is administered with power injectors.
의사결정나무 분석을 이용한 이상지질혈증 유병자의 지질관리 취약군 예측: 2019-2021년도 국민건강영양조사 자료
김희선,정석희,Hee Sun Kim,Seok Hee Jeong 한국기초간호학회 2023 Journal of korean biological nursing science Vol.25 No.2
Purpose: The aim of this study was to assess lipid levels and to identify groups with poor lipid control group among patients with dyslipidemia. Methods: Data from 1,399 Korean patients with dyslipidemia older than 20 years were extracted from the Korea National Health and Nutrition Examination Survey. Complex sample analysis and decision-tree analysis were conducted with using SPSS for Windows version 27.0. Results: The mean levels of total cholesterol (TC), triglyceride (TG), low density lipoprotein-cholesterol (LDL-C), and high density lipoprotein cholesterol were 211.38±1.15 mg/dL, 306.61±1.15 mg/dL, 118.48±1.08 mg/dL, and 42.39±1.15 mg/dL, respectively. About 61% of participants showed abnormal lipid control. Poor glycemic control groups (TC ≥ 200 mg/dL or TG ≥ 150 mg/dL or LDL-C ≥ 130 mg/dL) were identified through seven different pathways via decision-tree analysis. Poor lipid control groups were categorized based on patients' characteristics such as gender, age, education, dyslipidemia medication adherence, perception of dyslipidemia, diagnosis of myocardial infarction or angina, diabetes mellitus, perceived health status, relative hand grip strength, hemoglobin A1c, aerobic exercise per week, and walking days per week. Dyslipidemia medication adherence was the most significant predictor of poor lipid control. Conclusion: The findings demonstrated characteristics that are predictive of poor lipid control and can be used to detect poor lipid control in patients with dyslipidemia.