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간호대학 실습생들의 성격/행동유형과 임상실습 스트레스 양상 및 대처 방식간의 관계
장수연,김소정,김영지,서인영,송채림,오홍금,이인재,이지연,이지은,홍다혜,김정은,Jang, Suyeon,Kim, So Jeong,Kim, Yeong Ji,Suh, In Young,Song, Chearim,Oh, Hong Kum,Lee, In Jae,Lee, Ji Yun,Lee, Ji Eun,Hong, Da Hye,Kim, Jeongeun 서울대학교 간호과학연구소 2017 간호학의 지평 Vol.14 No.2
Purpose: This study was performed to identify levels of clinical practice stress and coping strategies according to the personality/behavior types of nursing students. Methods: The subjects of this study were 143 third- and fourth-grade nursing students in 14 nursing colleges who had experienced clinical practice. The questionnaire consisted of instruments to identify Dominance, Influence, Steadiness, and Conscientiousness (DISC) personality/behavior types, clinical stress, and stress coping strategies. The data were analyzed using Cronbach's ${\alpha}$, descriptive statistics, and ANOVA, using the SPSS 24.0 program. Results: The DISC pattern showed high priority in Steadiness (48.3%), followed by Conscientiousness (21.0%), Influence (16.1%), and Dominance (14.7%), in that order. The steadiness type showed the lowest level of stress among four patterns. Conclusion: This study found that the personality/behavior types of nursing students differ. Additionally, different personality/behavior types can be attributed to stress levels and stress coping behaviors. Based on these results, different personality and behavior types of nursing students should be considered to manage their stress levels related to the clinical practicum experience.
분산전원의 Anti-islanding용 수정된 zero-crossing 방식 주파수 검출기법
배병열(Byung-Yeol Bae),백승택(Seung-Taek Baek),이진희(Jin-Hee Lee),서인영(In-Young Suh) 전력전자학회 2008 전력전자학술대회 논문집 Vol.- No.-
This paper proposes a frequency detection method based on an advanced zero-crossing technique. Zero-crossing method for detecting frequency is one of the most widely used methods today. Although it is simple to apply, it requires extra hardware in implementation due to its limitations in accuracy. The proposed method models the error generated during zero crossing linearization and compensated for it in real time which makes it simple and accurate. The validity of the method and its applicability in anti-islanding detection of distributed generators was confirmed through simulation.
장수진(Jang, Su-Jin),이정민(Lee, Jeong-Min),김왕문(Kim, Wang-Moon),구태홍(Goo, Tae-Hong),서인영(Suh, In-Young) 한국신재생에너지학회 2008 한국신재생에너지학회 학술대회논문집 Vol.2008 No.05
In this paper, a new DC ground fault detection system is proposed, which is suitable for photovoltaic power generation systems. The proposed ground fault systems is superposition of divide resistance and detection circuit. The proposed system has the characteristics of a simplified structure, reduced cost and volume compared with those of the conventional ground fault system for DC source. The operation principle of the proposed systems is described and verified by simulation result.
Phage ${\phi}$ FSV가 Lactobacillus casei의 증식에 미치는 영향
김경태,이정준,서인영,나석환,백영진,Kim, Gyung-Tae,Lee, Jeong-Jun,Suh, In-Young,Na, Seog-Hwan,Baek, Young-Jin 한국미생물 · 생명공학회 1991 한국미생물·생명공학회지 Vol.19 No.2
In order to study effect of the phage ${\phi}$ FSV on the growth of lactic acid bacteria, Lactobacillus casei YIT 9018(wild type strain with prophage) or L. casei HYM 1213 (prophage cured strain) was infected with various concentrations of phage ${\phi}$ FSV (called Lac S21) or wild type virulent phage (called Lac J-1). When L. casei YIT 9018 was infected with Lac S21 under the concentration of $6.0{\times}10^6$ pfu/ml, the growth and lactic acid production of the strain were normal and the number of phages decreased. But L. casei HYM 1213 was susceptible to Lac S21. Regardless of the concentration of the phage infection, the number of phages increased rapidly into $10^9$ to $10^{10}$ pfu/ml at 2 day cultures and was maintained $10^7$ to $10^9$pfu/ml phage until 6 day cultures. The lactic acid production of L. casei HYM 1213 infected with Lac S21 was abnormal. Therefore, phage ${\phi}$ FSV had an evil effect on growth of L. casei HYM 1213, but not L. casei YIT 9018. On the other hand Lac J-1 caused abnormal fermentation to either L. casei YIT 9018 or L. casei HYM 1213.