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The Electrical and Mechanical Properties for Nano/Micro Alumina Composites used GIS Spacer
Park Jae Jun(박재준),Lee Kang Won(이강원),Cho Gyu Beom(조규범),Choi Jeong Wook(최정욱),Oh Seung Soo(오승수),Yoon Hyeon Mun(윤현문),Kim Young Hoon(김영훈),Park Jung Tak(박정탁),Jang Hong Joon(장홍준) 대한전기학회 2015 대한전기학회 학술대회 논문집 Vol.2015 No.11
에폭시-층상실리케이트 나노콤포지트 초음파 적용 최적 분산조건
박재준(Jae-Jun Park),엄지용(Ji Yong Um),김호균(Ho-Kyoun Kim),윤병제(Byung Jae-Yoon),윤여욱(Yo-Wook Yun),박구현(Gu-Gyun Park),황병준(Byung Joon Hwang) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
친환경적인 분산기법으로 강력초음파 분산기법이 최근에 여러연구자들에 의해 적용되어 그 성과를 나타내고 있다. 에폭시-층상실리케이트 제조기법 중 가장 중요한 물성향상이 동반 상승되는 경우 분산처리를 통한 나노콤포지트 제조에 있다. 분산능력의 최적상태를 찾기위해 초음파 적용시간을 4가지 적용시간을 달리하여 제조된 나노콤포지트 기계적, 전기적강도를 측정하여 와이블 확률분포 통계처리를 한 결과 전기적 절연파괴강도와 기계적 굴곡강도에서 최적의 분산상태를 얻을 수 있었다.
민준기 ( Joon Gi Min ),최재호 ( Jae Ho Choi ),김은영 ( Eun Young Kim ),김현수 ( Hyun Soo Kim ),차재명 ( Jae Myung Cha ),이정일 ( Joung Il Lee ),주광로 ( Kwang Ro Joo ),신현필 ( Hyun Phil Shin ),박재준 ( Jae Jun Park ),정원규 ( Weo 대한장연구학회 2012 Intestinal Research Vol.10 No.2
Primary rectal mucosa-associated lymphoid tissue (MALT) lymphoma is a particularly rare disease, comprising <1% of gastrointestinal lymphomas. Although antibiotic therapy has been demonstrated effective for gastric MALT lymphoma, the optimal treatment for MALT lymphoma of the rectum is unknown. Radiotherapy or surgery is often used to treat limited stage MALT lymphoma of the rectum. Here, we describe a case of a 44-year-old-man, who was diagnosed with primary MALT lymphoma of the rectum through colonoscopy. Other staging evaluations, including upper gastrointestinal endoscopy, abdomino-pelvic CT, chest CT, 18F fludeoxyglucose-positron emission tomography, and a bone marrow examination showed no other abnormalities, except stage IA para-rectal lymphadenopathy. The patient received 2 months of radiotherapy without major toxicity. A follow-up abdomino-pelvic CT scan revealed marked improvement in the volume of rectal lymphoma and adjacent lymph nodes. Mucosal nodularity of the lower rectum had completely regressed at the follow-up endoscopy and complete remission was confirmed with a biopsy. (Intest Res 2012;10:201-205)
장인범,박재준,이준웅,Jang In-Bum,Park Jae-Jun,Lee Joon-ung 한국전기전자재료학회 2006 전기전자재료학회논문지 Vol.19 No.2
The purpose of this research is to establish the crosstalk characteristic of mm-wave Coplanar structure. The components in mm-wave CPW are classified to transmission devices, EM devices, and quasi - TEM devices. After design of these devices, we analyzed these CPW s electromagnetically using FDTD method, and suggested the corsstalk characteristic of mm-wave CPW. In oder to realize a CPW module up to 30 GHz-100 GHz band, we research on a technology of 3-dimensional mm-wave CPW, and GaAs substrate with ohmic lossy layer. As a result this research, we suggested the optimum crosstalk characteristic of mm-wave CPW, and improved the crosstalk quality of mm-wave CPW.
중전기기용 Epoxy/SiO<sub>2</sub> 나노복합재료의 유전분산 연구
안준호,박재준,Ahn, Joon-Ho,Park, Jae-Jun 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.4
Recently, Nanotechnology becomes a major issue in most part of industries. Nanotechnology is expected to develop various application products due to nano material mired composites is improved physical and electrical properties compared to conventional composites materials. Dielectric and insulation materials need to develop and improve like other field about nanotechnology. In this paper, we reported dielectric dispersion by size(no filler, $1.2{\mu}m$, 500 nm, 10 nm), frequencies(60, 120, 1 kHz), and temperatures($30{\sim}170^{\circ}C$). Dielectric constant of composites materials with filler shows higher than composites materials without filler and increased depending on rising temperatures in low frequency region. It was the effect that nano-filler and impurities in composites contributed to electrical conductivity. And dielectric properties depending on temperatures shows to change in low frequency region dramatically We analyzed interfacial polarization in low frequency region($10^{-2}$ Hz) and oriented polarization in high frequency region($10^{-5{\sim}6}$ Hz) on composites materials.