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문성계(Sung-gye Moon),박진호(Jin-ho Park),류성열(Sung-Yul Rhew),김종배(Jong-bae Kim) 한국통신학회 2008 韓國通信學會論文誌 Vol.33 No.10D
무선태그 기반 기술의 발전으로 우편물류분야에서도 RFID기반의 우편물류시스템인 u-Post를 부분적으로 구축하여 사용하고 있다. 그러나 기존의 바코드시스템인 PostNet과 RFID시스템인 u-Post가 동시에 운영되고 있어 관리의 이중화라는 문제를 가지고 있다. 본 논문에서는 바코드와 RFID의 이중화 무선태그 운영방식을 모두 RFID로 통합한 개선된 기능의 우편물류체계를 제시한다. 이를 위해, 현재 운영 중인 시스템의 기능을 개선하기 위한 현황 및 문제점을 분석하여 개선 요구사항을 정의하고, 통합 RFID시스템 적용을 위한 소프트웨어, 하드웨어, 미들웨어 등을 설계한다. 또한, 우편 물류의 전 과정을 자동으로 인식하고 구분할 수 있는 우편물류구분 전자동화시스템 구축, 우편물류작업에서 신뢰도를 향상시키기 위한 프로세스 개선 방안 등에 대하여 제시한다. Even in the postal logistics sectors, they have developed and are operating a type of barcode system, PostNet, and a type of RFID system, u-Post; however, these two different systems are being utilized together, thus equipment and installation, cost, manual labor, and time is doubled, and thus a problem with management occurs. In this paper, This study will present an improvement to this system by unifying the dual processed radio tag system of the barcode and RFID into one improved postal logistics system. Furthermore, I propose analyzing the present conditions and its problems, rationalizing the demand for improvement, designing a system of software, hardware, and middle applicable to a unified RFID system, constructing a postal logistics automation system that can recognize and classify all procedures in its logistics, and improving the process to strengthen the reliability of postal logistics operation to improve the presently operating system.
서비스 기반 소프트웨어 유지보수를 위한 역공학과 인도(Delivery)단계의 프로세스 개선
박진호(Jin-Ho Park),류성열(Sung-Yul Rhew),김종배(Jong-Bae Kim),정석균(Suk-Kyun Chung) 한국IT서비스학회 2010 한국IT서비스학회지 Vol.9 No.4
According to software growth, also software maintenance has been continuously improving. In addition, the existing concept of software maintenance process demands operational management and improvement of service task. However, when we perform maintenance task, we have several constraints about applying service based requirement to system. Therefore, in order to solve these problems, we need a study of task of process for service based maintenance. In this paper, we propose a Service based Software Maintenance Process. Proposed process based on MaRMI-RE standard for software development and maintenance and compares it with the service based representative standards. In a related works, we study activity of ITIL and identify activities and tasks for maintenance. After this, identified activities and tasks compare with activities of MaRMI-RE. And then, we derive activities and tasks of a Service based Software Maintenance Process. Finally, we validate a result by comparing the proposed process with a general service operational process.
아질산 노출이 이스라엘잉어 혈장내 아질산 농도 및 간장 약물대사효소에 미치는 영향
박관하,최상훈,김영길,김용호,최선남,김종배 한국환경독성학회 2003 환경독성보건학회지 Vol.18 No.2
Effects of ambient nitrite, N0₂^(-), at 1, 3, 10 and 30 mg/l, on the changes of plasma nitrite/nitrate and on hepatic drug-metabolizing enzyme activity were examined in the juvenile Israeli carp, Cyprinus carpio. When the fish were exposed to 1 and 3 mg/l N0₂^(-), there was an exposure duration-dependent increase in plasma N0₂- over the 96-hr period reaching 6~7 fold excess the ambient concentration, In the fish exposed to 10 mg/l, a plateau concentration of less than 2-fold of the environment was attained in 12 hr. With 30 mg/l, however, the maximal plasma NOf was 41.25 mg/1 at 12 hr followed by a gradual decline. There was a concentration increase in methemoglobin (metHb) level in all N02^(-)-exposed groups and a significant decrease in hematocrit value in 30 mg/l group after 96-hr exposure. Apart from the blunted increase in plasma N0₂^(-) with higher N0₂^(-)(10 and 30 mg/1) exposure, the ratio of plasma N0₃^(-) to N0₂^(-) was significantly higher in these groups compared to 1 and 3 mg/l. The imbalance in the plasma N0₃^(-)/N0₂^(-) at higher N0₂^(-) exposure suggests a possible accelerated conversion of N0₂^(-) to N0₃^(-). Nitrite exposure did not affect the hepatic drug-metabolic activities in juvenile Israeli carp. All these data indicate that disposition of N0₂- differ depending upon exposed concentration and that metHb production may not be the exclusive toxic mechanism in carp
위 십이지장 염증성 질환과 Campylobacter pylori에 관한 전향적 연구
김종배,김영채,최상경,조명제,이광호,박철근,최진학,최국진 대한미생물학회 1988 大韓微生物學會誌 Vol.23 No.1
The presence of C. pylori in the gastric mucosa was reported to be associated with histo- logically proven gastritis. Gastric mucosal specimen were obtained by gastroscopic biopsy or from operative specimen. Diseases included in this study were 20 cases of gastric cancer, 15 cases of acute gastritis, 141 cases of chronic gastritis, 23 cases of duodenal ulcer, 16 cases of gastric ulcer patients and 5 casek from histologically normal persons. Biopsy specimens were ground with glass tissue homogenizer and inoculated on Mueller-Hinton media supplemented with 10% lysed bovine blood and to the Christensen urea broth for urease test. The positivity of urease test and the rate of isolation of C. pylori from urease positive gastric biopsy material were 65 jp and 69.2% in gastric cancer, 53.5% and 62.5% in acute gastritis, 70.9% and 68% in chronic gastritis, 82.6% and 93.8$quot;,o in duodenal ulcer, 89.5 % and 60% in gastric u1cer, 60% and 66.7% in normal persons. The overall urease positive rate was 71.8% and overall culture rate of the urease positive gastric specimen was fi9.6jo. Among the total 220 cases, 158 cases showed positive urease reaction and 71.8% of the urease pesitive cases was culture-positive, '33 strains of C'. Pyloye were isolated from urease negative specimens. Taken together, 191 cases(86.8/o) were urease positive or culture positive.
마득상,박덕영,정세환,정상호,백대일,문혁수,김종배 대한구강보건학회 1998 大韓口腔保健學會誌 Vol.22 No.1
30 adult male and female subjects completed 4-week, double-blind clinical study comparing the effect on gingivitis of the dentifrice containing 0.76% sodium monofluorophosphate and 3.0% carbamide peroxide. Subjects were divided by two balanced groups according to baseline gingivitis scores. Gingivitis index was scored by Lo¨e-Silness' Gingival index. Microhardness of tooth enamel of the dentifrice containing 0.76% sodium monofluorophosphate and 3.0% carbamide peroxide and the dentifrice containing 0.38% sodium monofluorophosphate, 0.11% sodium fluoride, 0.5% hydroxyapatite, and 3.4% tetrasodium pyrophosphate was measured by microhardness tester(Shimadzu corporation Model, HMV-2000 No. 33100410, Japan) before and after 20,000 strokes with brushing machine, Brightness of tooth enamel of the dentifrice containing 0.76% sodium monofluorophosphate and 3.0% carbamide peroxide and the dentifrice containing 0,38% sodium monofluorophosphate, 0.11% sodium fluoride, 0.5% hydroxyapatite, and 3.4% tetrasodium pyrophosphate was measured by colorimeter before and after 200 strokes with brushing machine. The obtained results were as follows: 1. The dentifrice containing 0.76% sodium monofluorophosphate and 3.0% carbamide peroxide was shown to provide a statistically significant reduction in gingivitis than the control dentifrice after 4 weeks(P <0.05). 2, There was no statistical significant change in the microhardness between the dentifrice containing 0.76% sodium monofluorophosphate and 3.0% carbamide peroxide and the control dentifrice(P≥0.05). 3. There was no statistical significance of the microhardness changes between the dentifrice containing 0.38% sodium monofluorophosphate, 0.11% sodium fluoride, 0.5% hydroxyapatite, and 3.4% tetrasodium pyrophosphate and the control dentifrice(P≥0.05). 4. There was statistical significance of the brightness changes between the dentifrice containing 0.76% sodium monofluorophosphate and 3.0% carbamide peroxide and the control dentifrice(P<0.05). 5. There was statistical significance of the brightness changes between the dentifrice containing 0.38% sodium monofluorophosphate, 0.11% sodium fluoride, 0.5% hydroxyapatite, and 3.4% tetrasodium pyrophosphate and the control dentifrice(P<0.05).