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Automatic Identification and Tracking in Blood Supply Distribution Using RFID System
Kang, Jin-Suk,Jeon, Young-Jun,Sung, Mee-Young,Shin, Seung-Ho,Jeong, Tai-Keong T. The Korea Institute of Information and Commucation 2007 Journal of information and communication convergen Vol.5 No.4
The distribution of donated blood for medical purpose is an area that presents many challenges. In order to establish a comprehensive solution, the current patterns of distribution must be reviewed and problems related to it need to be clearly understood. This paper introduces 'Radio Frequency Identification (RFID) System', as a potential solution to some of the problems which arise in the process of blood supply distribution, and a way to systematically manage the blood supply. For the various possible RFID systems, the reader and tag must be suitable for the purpose of blood distribution. A database has been designed that can recognize tags and objects in a ubiquitous RFID blood distribution system. In this paper, we design the real-time software to control the RFID reader system and transponder, using the EEPROM memory by RFID. The experimental results confirm that the transmission rate of 3.9kbps for RF is 125 KHz. The electric power usage of transponder chip is $100{\mu}W$, with the recognition distance is about 7cm range.
Security and Privacy Aspects of Low-Cost Radio Frequency Identification Systems
Kang, Jin-Suk,Choi, Yong-Sik,Sung, Mee-Young,Shin, Seung-Ho,Jeong, Tai-Keong T. The Korea Institute of Information and Commucation 2007 Journal of information and communication convergen Vol.5 No.3
Recently, ubiquitous computing in being actively researched and one of the main technology in ubiquitous computing environments is recognized as RFID system. The RFID system has much benefits but simultaneously has some problems such as user's privacy violation. In this paper, in order to improve the survivability of its nodes, it should build available simulation surrounding sensor nodes. Also, In the proposed cryptosystems we use a new hash function for user authentication and a stream cipher based on LFSR(Linear Feedback Shift Register) for message encryption and decryption. Moreover, each algorithm is programmed with C language and simulated on IBM-PC system and we analyze the randomness properties of the proposed algorithms by using statistical tests.
Plastic section에서의 효소조직화학적 및 면역조직화학적 방법을 이용한 림프절의 분석
장경현,김달식,임채웅,조남표,강명재,이동근,김상호 의과학연구소 1994 全北醫大論文集 Vol.18 No.2
The present work was designed to evaluate the enzyme histochemical and immunohistochemical characteristics of various cells that constitute lymph node. Lymph nodes were obtained at surgery for the evaluation of lymphadenopathy and were embedded in glycerol methacrylate(plastic) through the complexing tissue processing procedures. Enzyme histochemical examinations('5-nucleotidase, adenosine triphosphatase, acid phosphatase, alkaline phosphatase, nonspecific esterase, and peroxidase) were performed on thin sectioned(2m) tissues. And immunohistochemical stains for IgG and S-100 protein were also performed.
규폐증에 병발한 현미경적 다발성 혈관염(Microscopic polyangiitis) 1예
박성수,고재민,강양욱,박문향,정예경,조대경,전용덕 대한내과학회 2000 대한내과학회지 Vol.59 No.5
Microscopic polyangiitis (MPA) is a distinct type of systemic small vessel vasculitis affecting small sized vessels with few or no immune deposit and no granulomatous inflammation. Cause or pathogenetic mechanism of MPA has been unknown but association with silicon or silica exposure or pulmonary silicosis has been reported rarely and supports hypothesis that environmental factors are important modulating or triggering factors of the vasculitis in the indivisual who may be genetically predisposed. We report a case of microscopic polyangiitis with underlying pulmonary silicosis in 43 year-old male. He was admitted due to hemoptysis, dyspnea, fever and bilateral pulmonary infiltration with underlying small nodular densities in whole lung field and egg-shell calcification of both hilar areas. Laboratory findings showed hematuria, proteinuria and rapid deterioration of renal function. Renal biopsy revealed focal segmental necrotizing glomerulonephritis with early cellular crescents accompanied with membranous glomerulonephropathy and perinuclear-antineutrophil cytoplasmic antibody was positive. Under the diagnosis of MPA, he has been managed with high dose steroid, cyclophosphamide and hemodialysis. Chest infiltration decreased and hemoptysis and hypoxia was improved but renal function was not recoverd and he needed regular hemodialysis continuously. (Korean J Med 59:569-576, 2000)
방산원가 노무비 산정시 생산중단에 의한 학습손실 적용방안 연구
문경민,이용복,강성진,Moon, Keong-Min,Lee, Yong-Bok,Kang, Sung-Jin 한국국방경영분석학회 2010 한국국방경영분석학회지 Vol.36 No.2
Learning rate is generally applied to estimate an appropriate production labor cost. Learning effect is obtained from repetitive work during the production period under 3 assumptions ; homogeneous production, same producer, quantity measure in continuous unit. However, production breaks occur frequently in Korean defense industry environment because of budget constraint and annual requirements. In this case previous learning effect can not be applied due to learning loss. This paper proposed the application of learning rate when a production break occurs in Korea defense industry. To obtain a learning loss, we surveyed various learning loss factors for different production breaks(6, 12, 18 months) from 4 defense industry companies. Then, we estimate the first unit labor hours in re-production phase after production break using Anderlohr method and Retrograde method with the result of the survey. This work is the first attempt to show a method which defines and evaluates the learning loss factors in Korean defense industry environment.