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대학생의 진로스트레스가 우울에 미치는 영향 : 대학생활부적응과 그릿의 조절된 매개효과
신대건(Dae Geon Shin),박은영(Eun young Park) 한국자료분석학회 2021 Journal of the Korean Data Analysis Society Vol.23 No.6
이 연구는 대학생의 진로스트레스와 우울의 관계에서 대학생활부적응의 매개효과를 확인하고, 대학생활부적응이 매개하여 우울로 가는 경로에서 대학생활부적응과 그릿의 조절된 매개효과를 검정하고자 하였다. 이를 위해 대구와 경상북도 소재의 대학생을 대상으로 진로스트레스 척도, 우울 척도, 대학생활부적응 척도와 그릿 척도를 이용하여 설문조사하였고, 282명으로부터 수집된 자료를 SPSS PROCESS macro Model 14를 이용하여 분석하였다. 연구결과는 다음과 같다. 첫째, 대학생의 진로스트레스가 우울에 영향을 미치는 과정에서 대학생활부적응의 매개효과가 확인되었다. 둘째, 대학생의 진로스트레스가 우울에 영향을 미치는 과정에서 대학생활부적응과 그릿은 조절된 매개효과를 나타냈다. 이러한 결과는 그릿이 높을수록 진로스트레스가 대학생활부적응을 매개하여 우울에 미치는 정적영향이 감소한다는 것을 의미한다. 이는 대학생들에게 그릿향상을 목적으로 한 개인심리치료, 집단심리치료 등을 실시하여 대학생활에 적절히 적응 할 수 있도록하고 더 나아가 진로에 대한 스트레스를 감소시켜 대학생활과 그 이후의 삶의 만족도를 향상시킬 수 있을 것으로 사료된다. This study is to verify the mediating effect of maladjustment in college life in the relationship between career stress and depression in college students, and to test the mediating effect of maladjustment in college life and grit on the path to depression mediated by maladjustment in college life. University students in D, K Province completed the survey composed of career stress scale, depression scale (CES-D), maladjustment on college scale, and Grit scale. Data from 282 students were used for final analysis. The collected data was analyzed using the SPSS PROCESS macro Model 14. The results were as follows: first, the mediating effect of maladjustment in college life was verified in the process of college student career stress affecting depression. Second, Grit showed moderated mediating effect when career stress, mediated by maladjustment on college, affected depression. These results indicate that the higher the grit, the less the positive effect of career stress on depression by mediating maladjustment in college life. This is expected to improve college life and subsequent life satisfaction by providing personal psychotherapy and group psychotherapy for grit improvement so that college students can adapt appropriately to college life and further reduce stress on their careers.
반도체 클린룸용 외기공조시스템의 수분무 가습을 이용한 에너지절감에 관한 연구
송원일,김기철,유경훈,신대건,태경응,김용식,박덕준,Song, Won-Il,Kim, Ki-Cheol,Yoo, Kyung-Hoon,Shin, Dae-Kun,Tae, Kyung-Eung,Kim, Yong-Sik,Park, Dug-Jun 한국입자에어로졸학회 2017 Particle and Aerosol Research Vol.13 No.2
In recent large-scale semiconductor manufacturing cleanrooms, the energy consumption in outdoor air conditioning (OAC) systems to heat, humidify, cool and dehumidify outdoor air(OA) represents about 40~50 % of the total cleanroom power consumption required to maintain cleanroom environment. Therefore, the assessment of energy consumption in outdoor air conditioning systems is essential for reducing the outdoor air conditioning load for a cleanroom. In the present study, an experiment with an outdoor air flow rate of $1,000m^3/h$ was conducted to compare the energy consumption in steam humidification, simple air washer, exhaust air heat recovery type air washer and dry cooling coil(DCC) return water heat recovery type air washer OAC systems. Besides, a numerical analysis was carried out to evaluate the annual energy consumption of the aforementioned four OAC systems. It was shown that the simple air washer, exhaust air heat recovery type air washer and DCC return water heat recovery type air washer OAC systems using water spray humidification were more energy-efficient than the steam humidification OAC system. Furthermore the DCC return water heat recovery type air washer OAC system was the most energy-efficient.
배기 열회수식 에어와셔 외기공조방식 클린룸의 연간 에너지소비량 산출
김기철(Ki-Cheol Kim),유경훈(Kyung-Hoon Yoo),이관철(Gwan-Cheul Lee),신대건(Dae-Kun Shin),박덕준(Dug-Jun Park) 대한설비공학회 2013 대한설비공학회 학술발표대회논문집 Vol.2013 No.6
For a large-scale semiconductor manufacturing clean room, the energy consumed in an outdoor air conditioning system to heat, humidify, cool and dehumidify incoming outdoor air is very large. In particular, the energy requirement to humidify outdoor air in the winter season is generally known to be high. Recently, to overcome the high energy consumption nature of steam humidification, an air washer is often introduced instead of a steam generator in the conventional outdoor air conditioning system. Furthermore, from energy conservation point of view heat recovery is useful for reducing the outdoor air conditioning load. Therefore, the assessment of the annual energy consumed in the exhaust air heat recovery air washer outdoor air conditioning system deserves to be examined in order to reduce the outdoor air conditioning load of a clean room. In the present study, a numerical analysis was conducted to obtain the annual electric power consumption of the heat recovery type outdoor air conditioning system.