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간호대학생의 시험불안, 문제음주, 우울, 수면의 질의 관계 -고카페인 음료 섭취를 중심으로-
한정진 ( Jungjin Han ),김세민 ( Semin Kim ),전혜리 ( Hyeri Chun ),유지호 ( Jiho Yu ) 이화간호과학연구소 2020 Health & Nursing Vol.32 No.2
Purpose: The purpose of this study was to investigate the test anxiety, problematic drinking, depression, and quality of sleep between high caffeine drink intake and non-intake group and identify factors influencing the quality of sleep among nursing students. Methods: The design of this study was a descriptive correlational study. 180 participants of 1th to 4thgrade nursing students completed the questionnaire. Data were analyzed by the SPSS/WIN22.0 using descriptive statistics, independent t-test, chi-square test, ANOVA, Pearson’s correlation and multiple regression. Results: The mean scores of test anxiety, problematic drinking, depression, and quality of sleep in the high caffeine drink intake group were significantly high compared to those of the non-intake group. Sleep quality showed a positive correlation with test anxiety and problematic drinking. High caffeine drink intake and problematic drinking were the influential factors predicting quality of sleep. Conclusion: This implies that health education and policies on managing sleep quality and intake of high caffeine drinks should be essential to promote the health of nursing students.
고세장비 마이크로 음각 형상을 갖는 대면적 스탬프의 제작
이병수(Byung Soo Lee),한정원(Jeongwon Han),한정진(Jungjin Han),임지석(Ji Seok Lim),유영은(Yeong-Eun Yoo),제태진(Tae-Jin Je),강신일(Shinill Kang) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.5
This paper describes a novel method for fabricating large area metallic stamp with high aspect ratio micro intaglio features. Micro machined brass master with pillar and larger width groove patterns were electroformed to form inverse structures on the large area metallic stamp. This enabled large area metallic stamp with fine micro high aspect ratio micro intaglio features which were small width groove patterns and quadrilateral hole patterns that cannot be fabricated by direct micro machining process. Fabricated large area metallic stamp with high aspect ratio micro intaglio features was measured and analyzed.
롤 임프린트 리소그래피 공정을 이용한 유연 기판 상의 마이크로 패턴 제작에 관한 연구
심종명(Jongmyeong Shim),제순규(Soonkyu Je),한정진(Jungjin Han),강신일(Shinill Kang) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
A method using a roll imprint lithography is proposed to fabricate conductive patterns and tracks on large area flexible substrate with low cost. Conductive indium tin oxide(ITO) patterns and tracks with line widths of 2~20㎛ were formed using the roll imprint lithography process. The geometrical and electrical properties of fabricated conductive ITO patterns and tracks were measured and analyzed.