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임피던스 센서 제작을 위한 잉크젯 기반 IDE 패턴적층공정 최적화 연구
정현윤,고정범 한국기계가공학회 2022 한국기계가공학회지 Vol.21 No.4
At present, it is possible to manufacture electrodes down to several micrometers (~ μm) using inkjet printingtechnology owing to the development of precision ejection heads. Inkjet printing technology is also used in themanufacturing of bio-sensors, electronic sensors, and flexible displays. To reduce the difference between theelectrode design/simulation performance and actual printing pattern performance, it is necessary to analyze andoptimize the processable area of the ink material, which is a fluid. In this study, process optimization wasconducted to manufacture an IDE pattern and fabricate an impedance sensor. A total of 25 IDE patterns wereproduced, with five for each lamination process. Electrode line width and height changes were measured bystacking the designed IDE pattern with a nanoparticle-based conductive ink multilayer. Furthermore, the optimalprocess area for securing a performance close to the design result was analyzed through impedance andcapacitance. It was observed that the increase in the height of stack layer 4 was the lowest at 4.106%, and theincrease in capacitance was measured to be the highest at 44.08%. The proposed stacking process pattern, whichis optimized in terms of uniformity, reproducibility, and performance, can be efficiently applied tobio-applications such as biomaterial sensing with an impedance sensor.
어머니 역할지능에 대한 남녀 유아의 기질과 어머니 정서지능의 상호작용 효과
정현윤,김희화 인지발달중재학회 2017 인지발달중재학회지 Vol.8 No.2
The purpose of this study was to explore the relationship between child’s temperament, mother’s emotional intelligence and parenting intelligence depending on the child’s gender and investigate the effects of the interaction between child’s temperament and mother’s emotional intelligence on the mother’s parenting intelligence. The study was conducted with 269 children between the ages of 3 and 5 years and their mothers living in Busan. The data from the survey were analyzed using SPSS Version 21.0. The results of study can be summarized as follows. First, the relationship between sub-factors of child’s temperament and mother’s parenting intelligence indicated that adaptability, physiological regularity and reactivity of child’s temperament had a positive correlation with mother’s parenting intelligence. However, the temperament of activity had no significant correlation with mother’s parenting intelligence. In addition, the relationship between mother’s emotional intelligence and parenting intelligence showed a positive correlation regardless of the child’s gender. Second, the interactions between adaptive temperament for mother’s parenting intelligence and mother’s emotional intelligence, and reactive temperament for mother’s parenting intelligence and mother’s emotional intelligence was significant in case of male children, but the effect of the interaction between mother’s emotional intelligence and physiological regularity temperament on mother’s parenting intelligence was not significant. In case of female children, the interactions among adaptive temperament, physiological regularity temperament, reactivity temperament, and mother’s emotional intelligence on mother’s parenting intelligence were found to significant. 본 연구의 목적은 남녀 유아의 기질 및 어머니 정서지능과 어머니 역할지능 간의 관계를 살펴보고, 유아의 기질과 어머니 정서지능이 어떻게 상호작용하여 어머니 역할지능에 영향을 미치는지를 밝히는 것이다. 연구대상 표집을 위해 부산광역시에 거주하는 만 3, 4, 5세의 남녀 유아 269명과 그의 어머니를 대상으로 조사하였으며 회수된 자료는 SPSS Statistics 21.0 통계프로그램을 이용하여 분석되었다. 본 연구의 주요결과를 요약하면 다음과 같다. 첫째, 남녀 유아의 기질 하위요인과 어머니 역할지능 간의 관계를 살펴 본 결과 남녀 유아의 기질 중 적응성, 생리적 규칙성, 반응성은 어머니 역할지능과 유의한 정적 상관이 있는 것으로 나타났고, 활동성 기질은 어머니 역할지능과 유의한 관계가 나타지 않았다. 또한, 남녀 유아의 어머니 정서지능과 어머니 역할지능 간의 관계를 살펴본 결과, 유아의 성별에 상관없이 어머니 정서지능은 어머니 역할지능과 유의한 정적 상관이 있는 것으로 나타났다. 둘째, 남아의 경우, 어머니 역할지능에 대한 적응성 기질과 어머니 정서지능의 상호작용 효과가 유의하였고, 어머니 역할지능에 대한 반응성 기질과 어머니 정서지능의 상호작용 효과도 유의하였으나, 어머니 역할지능에 대한 생리적 규칙성 기질과 어머니 정서지능의 상호작용 효과는 유의하지 않았다. 여아의 경우, 어머니 역할지능에 대한 적응성 기질, 생리적 규칙성 기질, 반응성 기질 각각과 어머니 정서지능의 상호작용 효과 모두 유의한 것으로 나타났다.
무지 외반증 재발의 한 원인으로 생각되는 종자골 정복에 영향을 주는 인자
윤영필,이철형,정현윤,김영우,정재용,Yune, Young-Phil,Lee, Chul-Hyung,Jeong, Hyun-Yoon,Kim, Young-Woo,Jung, Jae-Yong 대한족부족관절학회 2010 대한족부족관절학회지 Vol.14 No.1
Purpose: The incomplete reduction of the sesamoid has lately been issued as cause for recurrence. In this study, we analysed factors that may influence reduction of sesamoid. Materials and Methods: The study consists of 50 cases operated by single surgeon. Eighteen cases were done by proximal chevron osteotomy, and 32 cases were done by scarf osteotomy. Hallux valgus (HV) angle and intermetatarsal (IM) angle were measured before and three months after the surgery. Sesamoid position (SP) was classified according to Hardy and Clapham grade system. Results: After the proximal chevron osteotomy, the correction of the mean HV angle was $19.5^{\circ}$, and IM angle was $6.2^{\circ}$. SP was changed from 5.6 to 3.4 grade. After the Scarf osteotomy, the correction of the mean HV angle was 25 degree, and IM angle was $9^{\circ}$. SP was changed from 5.5 to 2.8 grade. There was difference of sesamoid's correction between two different method of surgery (p=0.127). However, better correction of sesamoid was witnessed with bigger correction angle regardless of method of surgery (p=0.002, 0.001). Conclusion: We believe surgical method do not effect sesamoid's correction but more correction angle can result in better correction of sesamoid position.