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서수진,박상근,최흥재,정용채,윤재훈,김철동,Seo Su-Jin,Park Sang-Keun,Choi Heung-Jae,Jeong Yong-Chae,Yun Jae-Hun,Kim Chul-Dong 한국전자파학회 2006 한국전자파학회논문지 Vol.17 No.8
This paper presents a method to control group delay tine using a resonance circuit. The group delay time adjuster(GDTA) that can control signal group delay time comprises a variable capacitance and a variable equivalent inductor. These are coupled in parallel at a node and also controlled by two bias voltages separately, A variable equivalent inductor is realized a transmission line terminated a variable capacitor. Group delay time can be controlled by change of capacitance and inductance, but the resonating frequency is fixed. When the proposed GDTA is fabricated on RFID Korean frequency band$(908.5{\sim}914 MHz)$, a group delay variation is obtained about 3 ns. 본 논문은 공진 회로를 이용하여 군지연 시간을 조정할 수 있는 방법을 제안하였다. 군지연 시간을 조정할 수 있는 군지연 시간 조정기(GDTA)는 가변 캐패시터와 가변 등가 인덕터로 구성되어 있다. 가변 캐패시터와 가변 등가 인덕터는 병렬로 연결되어 있으며 각각 다른 바이어스에 의해 조절된다. 가변 등가 인덕터는 높은 임피던스를 갖는 전송 선로에 가변 캐패시터를 연결하여 구현했다. 군지연 시간은 병렬로 구성된 회로의 캐패시턴스와 인덕턴스의 변화에 의해 조정되어진다. 이 때, 공진 주파수는 고정되어지도록 해야 한다. 제안된 GDTA는 RFID 주파수 대역$(908.5{\sim}914 MHz)$에 맞추어 제작되었고, 군지연 시간의 조정범위는 약 3ns였다.
아버지의 양육참여도, 양육효능감이 유아의 자아존중감에 미치는 영향에서 아버지 행복감의 매개효과
서수진 ( Su-jin Seo ),도미향 ( Mi-hyang Do ) 한국아동가족복지학회(구 한국가족복지학회) 2019 한국가족복지학 Vol.24 No.3
The purpose of this study was to explore the effects of paternal involvement and self-efficacy on their children’s self-esteem by surveying the mediating effects of paternal happiness. Father involvement, self-efficacy and happiness were examined as antecedents affecting on children’s self-esteem. As a role of mediating effect for childrens’ self-esteem, happiness from the involvement was analyzed. 597 valid questionnaires from the parents of aged 4 and 5 children were collected. SPSS 23 and AMOS 23 programs were utilized to analyze the data according to structural equation modeling analysis. In reviewing of the systematic correlation among fathers' parenting involvement, self-efficacy, happiness and child self-esteem, fathers' involvement and their self-efficacy revealed both direct and interactive influences of their childrens' self-esteem. Namely children who spend more time with their fathers in parenting and family activities, and children’s cognitive achievements revealed higher self-esteem. As well, father's happiness substantially played a mediating role in relation between paternal self-efficacy and children’s self-esteem. As paternal involvement and their self-efficacies evidently proved to enhance children’s self-esteem and positive outcomes, institutional and educational preparations for fathers' intensive involvement in parenting are significantly required.
보육교사의 코칭역량이 교사-영아 상호작용에 미치는 영향
서수진 ( Su Jin Seo ),도미향 ( Mi Hyang Do ) 한국가족복지학회 2014 한국가족복지학 Vol.19 No.1
This research examined how childcare teachers coaching competency affects the interactions between the teachers and infants. The data was collected from 388 childcare teachers from childcare centers at C, P, and S districts, and the results of the study are as follows. First, when looking at the awareness level of the childcare teachers coaching competency and interactions between the teachers and infants, the awareness of the coaching competency was above average, and the awareness of the interactions between the teachers and infants was high. Second, a high correlational relationship was found between the childcare teachers coaching competency and the interaction level of the childcare teachers and infants. Third, multiple regression analysis was done to observe the effect of the childcare teachers coaching competency on the interactions between the teachers and infants. It was found that the childcare teachers coaching competency had a positive effect on the interactions between the teachers and infants. The variables that had significance were implementation competency, conversational competency, and consciousness competency; also, as the level of coaching competency increased, the level of interaction between the teachers and infants increased as well.
서수진(Su Jin Seo),성철재(Cheol Jae Seong) 사단법인 한국언어학회 2015 언어학 Vol.0 No.72
The purpose of this study is to provide the basic objective data regarding the characteristics of multi-cultural childrens’ diphthongs. The subjects were comprised of 18 children(average age: 7 years and 5 months) from Vietnamese-Korean families reportedly with no pronunciation problems and 18 children from just Korean families who all live in Daejon and other parts of Chungcheongnam-do. The selected diphthongs were: /j?, j?, jo, ju, j?, w?, w?, ?i/. The subjects were to imitate the target tokens or to read texts to say /diphthongs+da/. The results are as follows: First, in case of the two diphthongs /j?/ and /j?/ the two groups of children showed a statistically meaningful difference in the F2 transition with respect to both the differentiation slope and the regression slope. By comparing and contrasting the diphthongs of the Korean language and the Vietnamese language, it was discovered that the counterparts of Korean /j?/ and /jo/ did not exist in the Vietnamese language. This fact may result in the slope difference between 2 groups. Second, in case of the two diphthongs /j?/ and /j?/, the children from the Vietnamese-Korean families tended to have steeper slopes than those from the Korean families. It is deductible that the Vietnamese-Korean children move their tongues more excessively than the Korean ones when pronounce Korean diphthongs.
유방암 생존자의 생활습관, 우울, 부부친밀도가 삶의 질에 미치는 영향
서수진 ( Su-jin Seo ),노주희 ( Ju-hee Nho ),이명하 ( Myoungha Lee ),박영삼 ( Youngsam Park ) 한국여성건강간호학회 (구 여성건강간호학회) 2020 여성건강간호학회지 Vol.26 No.1
Purpose: This study investigated lifestyle, depression, marital intimacy, and quality of life (QoL) in breast cancer survivors, with the goal of identifying the impacts of these factors on QoL. Methods: A sample of 146 breast cancer survivors was surveyed in this cross-sectional study. Data were collected from March 20 to May 30, 2019, using self-report structured questionnaires at a hospital located in Jeonju, Korea. Data were analyzed using the independent t-test, analysis of variance, Pearson correlation coefficients, and hierarchical regression analysis. Participants agreed to complete a face-to-face interview, including administration of the Health Promoting Lifestyle Profile II, Depression Anxiety Stress Scale 21-Depression Scale, Marital Intimacy Scale, and Functional Assessment Cancer Therapy-Breast Cancer tool. Results: QoL was positively correlated with lifestyle (r=.49, p<.001) and marital intimacy (r=.45, p<.001) and negatively correlated with depression (r=-.72, p<.001). Hierarchical multiple regression analysis showed that depression (β=-0.63, p<.001), marital intimacy (β=0.19, p=.001), and lifestyle (β=0.13, p=.031) had significant effects on the QoL of breast cancer survivors, accounting for 63.3% of variance in related QoL. Conclusion: This study provides insights into how breast cancer survivors’ QoL was influenced by depression, marital intimacy, and lifestyle. To improve the QoL of breast cancer survivors, healthcare providers should consider developing strategies to decrease depression, to increase marital intimacy, and to improve lifestyle.