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부모-자녀관계치료(CPRT)를 통한 공감적 상호작용과 양육효능감 증진 및 양육스트레스 감소의 효과성 연구: 유아기 자녀를 둔 취업모를 중심으로
송지원 ( Song Jiwon ),최연실 ( Choi Younshil ) 한국가족관계학회 2022 한국가족관계학회지 Vol.26 No.4
Objectives: This study intends to verify the effectiveness of empathic interaction, parenting efficacy, and parenting stress by conducting a CPRT program, a child-parent relationship treatment, for working mothers with children aged 3 to 5. Methods: Ten working mothers with children aged 3 to 5 were equally divided into experimental and control groups. The experimental group participated in the program for 90 minutes twice a week with a total of 8 sessions. To verify effectiveness, the study conducted the Mann- Whitney U Test and Wilcoxon Signed-Rank Test using SPSS 21.0. For qualitative analysis, changes in the behavior of working mothers participating in each session were observed and recorded, and common factors and therapeutic factors were categorized. Results: Results indicate that the CPRT program was effective in improving the empathic interaction and the parenting efficacy of the working mothers. The program was similarly effective in reducing the working mothers’ parenting stress. This study also observed common and therapeutic factors of working mothers during the CPRT program sessions. Conclusions: This study proved the validity and effectiveness of the CPRT program as a preventive and group treatment program for the formation of parenting efficacy for employed mothers with infants. The study also recommends that follow-up research be conducted focusing on social and psychological adaptation programs.
송지원(Jiwon Song),김소연(Soyeon Kim),서기정(Gijeong Seo),노현규(Hyunkyu Noh),김민성(Minsung Kim) 대한설비공학회 2023 대한설비공학회 학술발표대회논문집 Vol.2023 No.6
This study presents a data-based load pattern analysis of a multi-type air conditioner. The correlation between the outdoor unit compressor frequency and the sum of each indoor unit electronic expansion valve (EEV) opening was analyzed to determine the load ratio of each indoor unit. The results show a strong correlation between the compressor frequency and the EEV opening (total correlation coefficient of 0.817), indicating that the EEV opening of each indoor unit is proportional to its load. The average load ratio of each indoor unit according to the EEV opening was also calculated, with ID_IDU No. 10 indoor unit having the highest load ratio (57.71%), followed by ID_IDU No. 11 (17.56%), and ID_IDU No. 12 and ID_IDU No. 13 (4.67% and 20.06%, respectively). Furthermore, the study found that 1-in-1 mode was the most common driving mode (62.89%), while 4-in-1 mode was the least common (1.89%). These findings suggest that operating all indoor units simultaneously in multi-type air conditioners is rare. Overall, this study provides valuable insights into the load pattern analysis of multi-type air conditioners, which can inform the development of more efficient and effective air conditioning systems.
R290 냉매의 대칭형/비대칭형 판형 열교환기 모델링에 관한 연구
송지원(Jiwon Song),정민규(Minkyu Jung),구돈익(Donik Ku),양현민(Hyunmin Yang),김민성(Minsung Kim) 대한설비공학회 2024 대한설비공학회 학술발표대회논문집 Vol.2024 No.11
In response to the European F-gas regulation, low-GWP refrigerants like R32, R1234yf, and R1234ze have been widely adopted, but they are classified as PFAS, raising health concerns. With the upcoming 2029 PFAS ban in Europe, R290 and R744 are expected to become the main refrigerants. While R290 is more efficient than R744, its flammability requires accurate charge estimation and reduction strategies.<BR/>This study develops a refrigerant charge prediction model for R290 in plate heat exchanger. Heat transfer correlations for plate heat exchangers were investigated, and an optimal database was established. The model predicts refrigerant charge within 10% accuracy, with an analysis of overcharging scenarios.
SmartX-mini Center 를 통한 NUC 클러스터의 Big Data 처리 가능성 검중
송지원 ( Jiwon Song ),이준기 ( Jungi Lee ),김승룡 ( Seungryong Kim ),김종원 ( Jongwon Kim ) 한국정보처리학회 2015 한국정보처리학회 학술대회논문집 Vol.22 No.1
IoT 의 발달로 인해 새롭게 빅데이터와 그의 실시간 처리의 중요성이 증대되고 있다. 본 논문에서는 사물인터넷의 관제 및 데이터 처리 기능을 갖춘 SmartX-mini 센터를 통하여 NUC 클러스터의 빅데이터 처리 가능성을 제시하고, 이를 검증하기 위하여 SmartX-mini 테스트베드를 활용한다. SmartX-mini Center 의 Spark 프레임워크를 이용한 실험을 통해 IoT 환경에서의 NUC 클러스터의 빅데이터 처리 기능에 대한 가능성을 검증하였다.
Sproid: 한글 프로그래밍 언어 새싹을 이용한 웹 기반 안드로이드 애플리케이션 개발 도구
송지원 ( Jiwon Song ),우균 ( Gyun Woo ) 한국정보처리학회 2015 한국정보처리학회 학술대회논문집 Vol.22 No.1
국내에서 스마트폰의 보급률이 증가함에 따라, 스마트폰 애플리케이션의 수 역시 증가하였다. 특히 안드로이드 애플리케이션은 다양한 개발 도구가 있고 다양한 환경에서 애플리케이션을 개발할 수 있다. 하지만 안드로이드 애플리케이션 개발 도구에 사용되는 기존의 프로그래밍 언어는 영어로 되어 있어 프로그래밍 초심자가 사용하기 어렵다. 이러한 문제점을 해결하기 위하여 이 논문에서는 한글 프로 그래밍 언어 ‘새싹’을 사용하는 웹 기반 안드로이드 애플리케이션 개발 도구 Sproid를 제안한다. Sproid는 ‘새싹, 언어를 사용하여 안드로이드 애플리케이션을 제작할 수 있으며 안드로이드의 명령어 및 구조를 모르더라도 쉽게 안드로이드 애플리케이션을 개발할 수 있다.