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차수정,이구연 江原大學校 産業技術硏究所 2010 産業技術硏究 Vol.30 No.A
In this paper, we implement a multi-touch system using FIDR. The implementation consists of hardware manufacture and development of image processing system. In the hardware system, touch screen, infrared LED placements and infrared camera are made. The image processing procedure is to extract each pointer's coordinates from image data and includes binary-coding, noise-elimination, labeling and calculation of mass center. From the implementation, we are able to make a multi-touch system with considerably lower cost than the existing ones.
차수정,이구연 江原大學校 産業技術硏究所 2010 産業技術硏究 Vol.30 No.B
Recently, the introduction of iPhone forced Korea to open its mobile market worldwide. The success of iPhone's open and cooperative code and the transition to the software-oriented paradigm also forces Korean mobile industry to greatly change according to the new trend for mobile market. Therefore, in this paper, to cope with such challenges, we investigate the effect of iPhone and then estimate its future prospect. Specifically, we focus on the effect on domestic mobile market, domestic software industry and individual's mobile life.
실시간 광 BJTC 시스템 구현을 위한 신호 흐름 제어
황수용,차광훈,김호연 서울산업대학교 산업대학원 1993 大學院論文集 Vol.2 No.-
One of the most ridiculous issue of the moving target tracking system is real-time processing of the input scene so as to extract the target features and estirmate the target states but there are no way to solve this problem sensationally in a digital algorithm. Recently an optical approach for this problem is presented; named BJTC tracker. In this paper, we propose a hardware that can the control the JTC signal for the BJTC system and show the timing chart of the hardware system to prove the design method. We use the FPGAs, low-accesstime RAM, and high performance ADC and DAC. And we use NTSC type CCDs and monitors.
화재 피해를 입은 고 강도 철근 콘크리트 보의 보수 성능
신미경,신영수,이차돈,홍성걸,강지연 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
This paper is to evaluate practically the techniques and materials of repair for high strength concrete elements with fire damages as well as to investigate the structural behavior of beams according to pre- or post-repair after fire-damages. For this purpose, flexural specimens with high strength concrete were exposed to high temperatures by the ISO 834 specification. After natural cooling and post-fire-curing in a natural environment for 1 months, 6 specimens were loaded to failure after they were repaired with polymer cement mortar for 1 month curing.
Treatment of Elastosis Perforans Serpiginosa with the 585-nm Pulsed-dye Laser
( Yeon Gu Choi ),( Sang Yeon Kim ),( Ji Soo Park ),( Kyu Yeon Kim ),( Bo Bin Cha ),( Jin Seop Kim ),( Gyoo Huh ),( Heun Joo Lee ),( Young Jun Choi ),( Won-serk Kim ),( Ga-young Lee ) 대한피부과학회 2022 대한피부과학회 학술발표대회집 Vol.73 No.2
Cha Minseok,Kim Jun-Ha,Choi Hyo-Jin,Nho Soo Bin,Kim Soo-Yeon,Cha Young-Lok,Song Hyoungwoon,Lee Won-Heong,Kim Sun-Ki,Kim Soo-Jung 한국미생물·생명공학회 2023 Journal of microbiology and biotechnology Vol.33 No.10
This work aimed to evaluate the feasibility of biohydrogen production from Barley Straw and Miscanthus. The primary obstacle in plant biomass decomposition is the recalcitrance of the biomass itself. Plant cell walls consist of cellulose, hemicellulose, and lignin, which make the plant robust to decomposition. However, the hyperthermophilic bacterium, Caldicellulosiruptor bescii, can efficiently utilize lignocellulosic feedstocks (Barley Straw and Miscanthus) for energy production, and C. bescii can now be metabolically engineered or isolated to produce more hydrogen and other biochemicals. In the present study, two strains, C. bescii JWCB001 (wild-type) and JWCB018 (ΔpyrFA Δldh ΔcbeI), were tested for their ability to increase hydrogen production from Barley Straw and Miscanthus. The JWCB018 resulted in a redirection of carbon and electron (carried by NADH) flow from lactate production to acetate and hydrogen production. JWCB018 produced ~54% and 63% more acetate and hydrogen from Barley Straw, respectively than its wild-type counterpart, JWCB001. Also, 25% more hydrogen from Miscanthus was obtained by the JWCB018 strain with 33% more acetate relative to JWCB001. It was supported that the engineered C. bescii, such as the JWCB018, can be a parental strain to get more hydrogen and other biochemicals from various biomass.