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초고속 통신망을 이용한 CSCW 기반 CALS 시스템 개발
배재호,왕지남 한국정보처리학회 1998 정보처리학회지 Vol.5 No.1
This paper deals with developing a remote & realtime Computer-Aided Logistics Support (CALS) Systems through Information Super-Highway. A prototype of CALS is designed and implemented considering the environment of Information Super Highway. The concept of CSCW based virtual enterprise is discussed in connection with the four different activities: development of remote & virtual equipment controller, remote monitoring & inspection, real time tracking of logistics information, and web-based bidding and delivery system A real implemented system is demonstrated under the Information Super-Highway with the corresponding software and hardware configurations.
배재호,최백서,김영진,이현미,김기홍,한윤수 한국고분자학회 2022 Macromolecular Research Vol.30 No.7
Silicone hydrogel contact lenses (SiH CLs) covalently grafted with a highwater- content copolymer layer, poly(2-methacryloyloxyethyl phosphorylcholineco- 2-hydroxyethyl acrylate) [P(MPC-co-HEA)], were fabricated, and their physical properties were investigated. SiH CLs were first prepared by radical copolymerization of a siloxane monomer and hydrophilic comonomers, and they were exposed to oxygen plasma to create peroxide groups on the lens surfaces. By letting peroxide- containing (O2-plasma-treated) SiH CLs act as a thermal free radical initiator, the P(MPC-co-HEA) layer with a water content of approximately 87% could be incorporated onto the surface by graft copolymerization between the lenses and mixed monomers (MPC and HEA). A P(MPC-co-HEA)-grafted SiH CL showed a contact angle of 49.9°, decreased from that of a pristine SiH CL (89.6°). The oxygen permeability of the P(MPC-co-HEA)-grafted SiH CL was recorded to be 54.46 barrer, almost the same as that of the pristine SiH CL (56.01 barrer). Meanwhile, the optical transmittance, tensile strength, and thermal characteristics of the P(MPC-co-HEA)-grafted SiH CL did not deteriorate following the O2 plasma treatment and graft copolymerization.
백금과 이리듐을 첨가한 zeolite촉매를 사용한 린번엔진으로부터의 질소산화물 제거
배재호,서해근,신병선,정석진 慶熙大學校 材料科學技術硏究所 1998 材料科學技術硏究論集 Vol.11 No.-
Under lean burn condition region, main hazard exhaust components are NOx and abundant hydrocarbons. Therefore, NOx abatement using hydrocarbon reductant was most desirable. During last twenty years, NO direct decomposition reaction by Cu-ZSM-5 was suggested with strong possibilities. However, at actual engine exhaust condition(i.e. hydrothermal atmosphere) that wasn't work its own function. In this paper, we tried in order to overcome these disadvantages, other precious metal, especially Pt, Ir, Rh ion exchanged zeolite catalysts were used for lean deNOx catalysis.
배재호 한국산업경영시스템학회 2017 한국산업경영시스템학회지 Vol.40 No.4
This paper proposes a dynamic magnetic field emulator (DMFE), which can electrically emulate information for the magnetic stripes of most widely used credit cards. Payment transactions with most common credit cards are performed by reading the card’s information, encoded in magnetic stripes, using the reader head of a point-of-sale (POS) system. A stripe-type permanent magnet is attached to the back side of the credit card, and information for payments or value-added service is reorganized by exposing it to strong magnetic field. The process of data recording and retrieving as stated above has been pointed out as a major cause of illegal credit card use, because the information on the magnetic stripe is always exposed, and is thus vulnerable to forgery or alteration. A dynamic magnetic field emulator displays card information only when necessary by using the principle of solenoidal magnets. The DMFE proposed in this paper can prevent fraudulent use if it is operated with a device, like a smart phone, or a separate user-authentication procedure. In addition, because it is possible to display various information as needed, it can be utilized for a smart multi-card application, in which information for multiple cards is stored in one card, and can be selected and used as needed. This paper introduces the necessity of the DMFE and its manufacturing principles. As a result, this study will be helpful for making various application cases in payment, which is a core area of the Fintech (a newly-coined word of finance and technology) industry.
수리학적 체류시간 및 암모니아성 질소 농도가 침출수의 생물학적 처리에 미치는 영향
배재호,조광명,박수영,맹성민,송기봉 ( Jae Ho Bae,Kwang Meyung Cho,Soo Young Park,Sung Min Maeng,Ki Bong Song ) 한국물환경학회 1995 한국물환경학회지 Vol.11 No.4
The treatment of leachate from solid wastes landfill is generally difficult because it contains high concentrations of organics, ammonia nitrogen and ionic materials. Experiments were conducted to characterize the leachate generated from Kimpo Landfill Site and to investigate the effects of hydraulic retention time and ammonia nitrogen concentration on the efficiency of the leachate treatment system consisted of anaerobic digestion and extended aeration processes. The leachate was characterized for three months after eighteen months of landfill operations, and CODcr, COD_(mn), BOD, TDS, and NH₄^+ -N were stable with the average values of 3,960㎎/ℓ, 920㎎/ℓ, 3,430㎎/ℓ, 14,230㎎/ℓ, and 1,090㎎/ℓ, respectively. For anaerobic digestion of the leachate, the hydraulic retention time was found to be a critical factor for the operation, and should be maintained longer than 20 days without significant changes in flow rate. The high concentrations of NH₄^+-N and ionic materials in the leachate appeared not to significantly affect the treatment efficiency. However, for the extended aeration process which receives the anaerobic digester effluent, the hydraulic retention time appeared not to affect the organic removal efficiency. Effects of the high concentrations of NH₄^+-N and ionic materials on extended aeration process were negligible over a long term, but a longer adaptation period was required with those compounds.