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정용기(Yong-Gi Jung) 한국의료정보교육협회 2018 보건의료생명과학논문지 Vol.6 No.1
본 연구에서는 전문대학교 보건의료행정과의 수업에서 갖는 성취목표지향성과 학생이 진로를 위한 개인 자기조절학습전략의 학업성취에 미치는 영향이 각기 지닌 성격유형에 따라서 효율적인 교수-학습방안을 모색하고자 하였다. 보건의료행정과에 재학 중인 77명의 학생을 대상으로 MBTI를 실시하고 개인적 성향에 따른 학업성취와의 관계를 분석하고, 학업 성취도를 높이기 위한 개인 지도와 그룹학습을 통해서 진로와 학습에 대한 불안을 해소하고 적극적인 교과 및 진로 교육의 참여를 모색하고자 한다. The aim of this study is to closely examine the influence on affecting the study achievement of self-regulated learning strategies for students’ courses and the directivity on accomplishing the study goal in the class of the department of health & medical administration in the community college. We analyzed the relationship between the study achievements according to the personal tendency and implemented the Myers-Briggs Type Indicator for 77 students who are in school at the department of health & medical administration in order to search the effective methods of teaching and learning on the other different aspects according to the students’ personality types. And also we tried to seek to participate in an active learning and the course education and to reduce the anxiety for a course and learning in order to enhance the study achievement needs through the group study and the personal guidance.
침착 미세먼지의 재부유를 위한 최적 토출 방향 및 각도
정용기(Yong Gi Jung),김민영(Min Young Kim),박진철(Jin Chul Park),양영권(Young Kwon Yang) 대한건축학회 2021 대한건축학회논문집 Vol.37 No.1
The purpose of this study is to serve as a method for reducing the particulate matter deposited on the indoor surface to maintain comfortable indoor air quality. To reduce the particulate matter deposited on the indoor surface, resuspension flow was generated. The optimal resuspension flow discharge direction and angle were confirmed experimentally for the effective interior surface deposited particulate matter reduction. To reduce the particulate matter deposited on the indoor surface, resuspension flow was generated in each direction to resuspend the deposited particulate matter and was then reduced using an air purifier. Resuspension flow was generated at 0˚, 90˚, 180˚, 270˚, and four-way based on the air front inlet. The experiment for each angle to reduce the deposited particulate matter measured the wind speed in the front inlet of the air purifier by generating the resuspension air flow at 30˚, 60˚, and 90˚ angles. Resulting from the experiment to remove indoor particulate matter using only the air purifier, the difference in the concentration of indoor particulate matter after the operation of the air purifier and when resuspended to confirm the removal of the deposited particulate matter was 47㎍/㎥. Meanwhile, resulting from the experiment that reduced indoor particulate matter by generating resuspended air flow for each direction, the difference in the indoor particulate matter concentration was 15㎍/㎥ at 0˚, 17㎍/㎥ at 90˚, 12㎍/㎥ at 180˚, and 19㎍/㎥ at 270˚. Resulting from the four-way experiments, the difference in the indoor particulate matter concentration was 6㎍/㎥. Therefore, the effect of reducing particulate matter deposited on the indoor surface by using four-way resuspension airflow was the best. As a result of measuring the average wind speed at the front inlet of the air purifier based on discharge angle, the wind speed was found to be 0.74m/s at 30˚, 0.75m/s at 60˚, and 0.77m/s at 90˚; thus, the wind speed was the fastest at 90˚.
바닥복사난방시스템에서 PCM 적용에 따른 온도 변화 및 에너지 사용량 비교 Mock-up 실험
정용기(Jung, Yong-Gi),김성은(Kim, Seong-Eun),유민상(Yoo, Min-Sang),박진철(Park, Jin-Chul) 대한건축학회 2022 대한건축학회논문집 Vol.38 No.1
In this study, as a method to reduce the energy consumption of the radiant floor heating system, the heating energy reduction was studied using PCM, a latent heat storage device. A 44℃ PCM was installed under the heating pipe of the mock-up laboratory with the standard floor structure applied, and the temperature change and energy consumption according to the PCM application were compared through the experiment. For the experiment, two mock-up laboratories of the same standard were established outdoors. A general radiant floor heating system and a PCM system were applied to each laboratory, and the indoor air temperature, floor surface temperature, heating hot water temperature, and heating energy consumption were measured to compare the temperature change and energy consumption of each room. As a result of the experiment, when PCM was applied, both the time to reach the maximum temperature from the start of heating operation decreased in the case of indoor air temperature and floor surface temperature. As a result of comparison of hot water temperature, it was confirmed that when PCM was applied, heating was operated for a shorter time, and heating energy consumption was also reduced.
환기덕트에서 광촉매코팅 면적변화에 따른 NOx 농도저감 실험
정용기(Jung, Yong-Gi),송용우(Song, Yong-Woo),김성은(Kim, Seong-Eun),유재윤(Yoo, Jae-Yun),박진철(Park, Jin-Chul) 대한건축학회 2021 대한건축학회논문집 Vol.37 No.8
The purpose of this study was to study how to reduce the primary pollutants of NOx in a manner to keep a comfortable air quality. By installing a photocatalytic reactor in a duct device, the reduction of NOx according to the reaction area change using the photocatalytic reaction was confirmed through an experiment. The experiment was conducted according to the ISO 22197-1 test method, and the coating area was changed to 100%, 75%, 50%, and 25%. As a result of the test according to the coating area change of the TiO₂ photocatalyst, it was confirmed that as the coating area decreased, the NOx concentration increased after the reaction was completed, and the NOx reduction amount decreased. In addition, as the coating area decreased, the NOx reduction rate decreased, and the gradient of the reduction graph also decreased. After the reaction of the coating area 25%, the time to 72% reduction, which is the amount of NOx reduction, was compared. As the coating area decreases was confirmed that increases the reaching time to 72% reduction.
공동주택 바닥 복사난방에서 PCM 융해온도(44℃, 35℃)에 따른 온도 변화 실험
정용기(Jung, Yong Gi),김성은(Kim, Seong Eun),송용우(Song, Yong Woo),박진철(Park, Jin Chul) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.2
The purpose of this study was to conduct a chamber experiment to select the melting temperature of PCM suitable for a floor radiant heating system. Heating experiments were conducted according to the application of PCM in an environment of 20℃~22℃. As a result of the experiment, compared to the existing floor structure at Indoor temperature, the room temperature retention time increased by 90 minutes for the 44℃ PCM and 154 minutes for the 35℃ PCM. In addition, compared to the existing floor structure at the floor surface temperature, the room temperature retention time increased by 88 minutes for the 44℃ PCM and 151 minutes for the 35℃ PCM. Compared to the existing floor structure at hot water temperature, the room temperature retention time increased by 129 minutes for 44℃ PCM and 173 minutes for 35℃ PCM. As a result of the experiment, it was found that the Indoor temperature, floor surface temperature, and hot water temperature maintenance time increased due to the heat storage effect of PCM when PCM was applied. PCM suitable for radiant floor heating system was found to be a 35℃ PCM melting temperature is relatively long period of time the temperature is kept suitable for radiant floor heating system.