http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Glucose oxidase/Cellulose 나노멤브레인을 이용한 Glucose 응답형 Patch 센서의 전기화학적 특성
김규오,김건진,Kim, Kyu Oh,Kim, Geon Jin 한국섬유공학회 2018 한국섬유공학회지 Vol.55 No.1
Highly selective and efficient electrochemical non-invasive epidermal glucose sensors were fabricated using electrospun cellulose-immobilized glucose oxidase (cellulose/GOx) nanofiber membranes. CA nanofiber membranes displayed homogeneous, smooth, and strongly interconnected nanofibers with fiber diameter of $0.21{\pm}0.1{\mu}m$ after treatment with 0.05 NaOH aqueous solution. The electrochemical oxidation of glucose was chosen for the detection of glucose and was achieved through the fabricated nanofiber membranes. Furthermore, the fabricated nanofiber membrane exhibited good selectivity, high stability, and high reproducibility, and hence, it can be used in wearable noninvasive epidermal glucose sensors.
방열복용 기저원단의 조성이 물리적 특성 및 방열특성에 미치는 영향
김규오,조진원,박명수,이정진 한국섬유공학회 2022 한국섬유공학회지 Vol.59 No.5
Heat protective clothing from 100% aramid fiber shows excellent physical propertiesas well as good thermal insulation properties. However, there are also some drawbackssuch as high cost, heavy weight, and stiffness. Blending aramid fiber with other kindsof fibers could be one of the solutions for inexpensive, lighter, and flexible heat protectiveclothing. In this study, we made four base fabrics with different fiber compositions using paramid,basalt, and oxidized PAN fibers. Tensile and tear strengths of the base fabrics, BF2and BF4, which contained an oxidized PAN fiber were less than those of base fabrics, BF1and BF3, which were made from only p-aramid and basalt fibers. Although all of the basefabrics showed good flame retardancy, the protection performances against radiation orconvection heat source of BF2 and BF4 were better than those of BF1 and BF3. Heat protectivefabrics made from the base fabrics, aluminium reflective layer and aramid tricot lining,exhibited much higher heat protection performances showing high RHTI24 and HTI24 values. The heat protective fabric, HPC4, which showed the best performances, exhibitedgood protection against molten metal splash. The total degree of burn of the heat protectiveclothing from HPC4 was predicted as 4.15% after flash fire exposure for 4sec in theinstrumented manikin test.
PSCAD/EMTDC를 이용한 계통연계형 태양광발전시스템의 MPPT제어를 위한 Double Fuzzy 제어기 설계에 관한 연구
김규한(Kyu-Han Kim),김형수(Hyung-Su Kim),박준호(June-Ho Park) 대한전기학회 2011 전기학회논문지 Vol.60 No.3
This paper proposes a method of maximum power point tracking (MPPT) using fuzzy logic control for grid-connected photovoltaic systems (PV). First, for the purpose of comparison, because of its proven and good performances, the incremental conductance (IncCond) technique is briefly introduced. A double fuzzy logic controller (DFLC) based MPPT is then proposed which has shown better performances compared to the IncCond MPPT based approach. Modeling and Simulation in grid-connected PV system results are provided for both controllers under same atmospheric condition based PSCAD/EMTDC. The double fuzzy logic MPPT controller is then simulated and evaluated, which has shown better performances.
김규만(G. M. Kim),정성일(S.I. Chung),오현석(H.S. Oh) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
Fabrication of a high-resolution shadow mask, or called nanostencil, is presented. This high-resolution shadowmask is fabricated by a combination of MEMS processes and focused ion beam (FIB) milling. 500 ㎚ thick and 2x2 mm large membranes are made on a silicon wafer by micro-fabrication processes of LPCVD, photolithography, ICP etching and bulk silicon etching. Subsequent FIB milling enabled local membrane thinning and aperture making into the thinned silicon nitride membrane. Due to high resolution of FIB milling process, nanoscale apertures down to 70 ㎚ could be made into the membrane.