http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Top-down 방식과 bottom-up 방식의 융합을 통한 블록공중합체 자기조립 나노구조 제어
김봉훈 ( Bong Hoon Kim ),정성준 ( Seong Jun Jeong ),신동옥 ( Dong Ok Shin ),박승학 ( Seung Hak Park ),이형민 ( Hyung Min Lee ),구종민 ( Chong Min Koo ),김상욱 ( Sang Ouk Kim ),( Guo Dong Xia ) 대한금속재료학회 ( 구 대한금속학회 ) 2007 ELECTRONIC MATERIALS LETTERS Vol.3 No.3
The self-assembled nanostructures of block copolymers have been widely investigated because of their potential applications as templates for nanocomposites, optoelectronic devices, ultrahigh density nanodots or nanowire arrays, memory and capacitor devices, sensors, etc. Despite the advantages of block copolymer self-assembly such as parallel processing, molecular level resolution, and the capability to generate three dimensional structure, the lack of long range order of the block copolymer nanostructure have prevented the application to practical devices. Here, we review the strategy to combine top-down and bottom-up approaches as the method to obtain a block copolymer nanostructure with long range ordering. ``Graphoepitaxy`` and ``epitaxial self-assembly`` are demonstrated as the most successful strategies for well-ordered block copolymer nanostructures.
김연수(Yeon Su Kim),정성준(Seong Jun Jeong),조준호(Jun Ho Jo),최재원(Jae Won Choi),김진오(Jin Oh Kim) 대한기계학회 2021 대한기계학회 논문집. Transactions of the KSME. C, 산업기술과 혁신 Vol.9 No.1
대한민국이 고령사회에 접어듦에 따라 관련 제품의 연구 및 개발이 많이 진행되고 있으나, 활동영역의 제약 및 리프트 장치 이용 시 불안정성 등 다양한 문제가 존재한다. 본 연구는 편안하고 안정적인 이동을 보장하기 위해 여러 가지 기구학적인 설계와 기계적 요소를 결합하여 호환 장치와 현가장치가 갖춰진 전동휠체어를 설계하였다. 또한, 리프트 사용 시 발생할 수 있는 전복 사고를 방지하기 위해 전복방지 장치를 추가로 구성하였다. 본 연구는 실버 세대의 활동 환경을 개선할 뿐만 아니라 추후 의료 등 다양한 분야에 활용할 수 있는 몇 가지 가능성을 제시하였다. As Korea enters an aging society, many studies of related products are being conducted. But there are various problems such as activity restrictions and instability using a lift. This study designed an electric wheelchair equipped with compatible devices and suspension devices by combining various kinematic designs and mechanical elements to ensure comfortable and stable movement. In addition, Overturning-device was additionally configured to prevent accidents that may occur using the lift. This study not only improves the activity environment of the user, but also presents several possibilities that can be used in various fields such as medical care in the future.
공보금,이종태,최은경,박진국,손혜숙,정귀원,정성준,이성훈 인제대학교 2001 仁濟醫學 Vol.22 No.1
Objectives: The Job strain model was applied to taxi drivers and to assess the relationship between job characteristics, general characteristics and psychosocial distress. Methods and Materials: In this cross-sectional study, 72 taxi drivers in Pusan are inclouded. Psychosocial distress was measured using PWI (Psychosocial well-being index). The Karasek's Job Content Questionnaire was utilized to evaluate job characteristics. Results: Higher education level was significantly related to higher social support(p<0.05), lower monthly income, which was related to higher psychological job demand(p<0.05). PWI socres were higher in current smoker. High PWI scores was associated with low decision authority, decision latitude level (p<0.01) and high job insecurity (p<0.05). Conclusions: The Job strain model was supported in this study, suggesting the level of psychosocial distress was modified by job demand and Job control.