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Linux HA 클러스터링을 이용한 모바일 탄소 모니터링 시스템 구현
이재광,김영혁,이재광 한국정보기술학회 2014 한국정보기술학회논문지 Vol. No.
탄소미터링 통합관제 시스템(Carbon-Integration Control System, CICS) 이란 IT 시설물의 에너지 사용현황을 실시간으로 확인하고 제어하는 기능을 가지고 있다. 기존의 CICS는 관제 모듈이 분산, 독립 운영되었으나 SmartRack 기반의 CICS는 항온·항습 센서, 공조기, PDU 등의 장치가 통합되어 전력사용량, 탄소배출량 등의 정보를 수집하고 수집된 정보를 이용해 CICS를 구성할 수 있다. 기존 탄소미터링 시스템은 모바일이 아닌 PC 환경에서 관제 시스템을 제공하지만 본 연구에서는 웹 서버를 추가하여 PC환경에서 통합관제시스템을 제공하는 것뿐만 아니라 모바일에서도 통합관제 할 수 있는 시스템을 제공하도록 구현한다. 그리하여 Linux HA를 적용한 웹 서버를 이용하고 다양한 모바일 기기를 통하여 탄소 관제가 가능한 시스템을 구현한다. Carbon metering integrated control system (Carbon-Integration Metering System, CICS) What is the status of the energy use of IT facilities in real-time has the ability to see and control. CICS based of SmartRack is a constant temperature, humidity sensor based, air conditioners, PDU and other devices are integrated. It is Providing information of Power consumption, carbon emissions, such as. It use configured the CICS. And using the information provided can be constructed of integrated control system. Also, Existing carbon metering system is a Mobile control system, not the PC environment provided. However, in this study, to mobile can be implemented that to provide in the integrated control system by adding Web servers. To safety of web server is applied Linux HA. To deal intelligently in case of emergency. In this paper, Mobile carbon monitoring system implementation using Linux HA clustering on CentOS 5.5 environment.
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이재광,조현,최용근,정은혜,조재성,고희정 한국인터넷전자상거래학회 2019 인터넷전자상거래연구 Vol.19 No.1
Recently, studies for predicting the box office are actively conducted in the movie industry. Generally, it is known that the amount of online buzz for a certain movie is highly correlated with movie performance. Some successful movies have succeeded as buzz has increased whereas some movies have failed with negative oral effect. In this paper, we try to analyze how the nature of buzz quantity affects movie success. To do this, online reviews were analyzed for films in the top 50 of the domestic portal sites in 2016. Using the analysis program R, the contents of the review were classified as positive and negative by emotional analysis and regression was performed. As a result of the analysis, regardless of the content of the review, it was found that the number of movie viewer increased as the amount of reviews increased. We hope that this research will be of value to related industry and academia in the future.
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이재광,박윤선,김영아 대한임상미생물학회 2023 Annals of clinical microbiology Vol.26 No.3
Background: This study aims to analyze the risk factors for urinary tract infection (UTI) by cefotaxime-resistant Escherichia coli or Klebsiella pneumoniae, using data from the National Health Insurance Data Sharing Service. Methods: A retrospective case-control study was conducted to analyze the risk factors during 11 years (2010–2020). Study groups were selected based on the laboratory data of the hospital, which comprised 3,638 and 877 cases of cefotaxime-resistant E. coli and K. pneumoniae , respectively. Controls comprised 8,994 and 1,573 cases of cefotaxime-nonresistant (intermediate or susceptible) E. coli and K. pneumoniae, respectively. Clinical and socioeconomical features were obtained from the National Health Insurance service data. Results: In a multivariate analysis of risk factors for UTI by cefotaxime-resistant E. coli, the odds ratio (OR) of the male sex was 1.335 (95% confidence interval, 1.204–1.480), age 0–9 years was 1.794 (1.468–2.191), chronic renal disease was 1.227 (1.062–1.417), and hemodialysis was 1.685 (1.255–2.262). Moreover, the ORs of L-tube, central venous pressure catheter, and Foley catheter use were 1.204 (1.047–1.385), 1.332 (1.156–1.534), and 1.473 (1.316–1.649), respectively; the OR of previous antimicrobial use was 1.103 (1.009–1.206) and that of healthcare facility use was 1.782 (1.576–2.014). In a multivariate analysis of risk factors for UTI by cefotaxime-resistant K. pneumoniae, OR of the male sex was 1.460 (1.199–1.778), liver disease was 1.295 (1.037–1.617), and hemodialysis was 2.046 (1.263–3.315). The ORs of L-tube and Foley catheter use were 2.329 (1.861–2.915) and 1.793 (1.431–2.246), respectively, and the OR of the healthcare facility use was 1.545 (1.161–2.056). Conclusion: In this study, the risk factors for UTI caused by cefotaxime-resistant E. coli or K. pneumoniae were analyzed based on the data of a specific healthcare facility linked to the National Health Insurance system. We suggest that it is a simple and effective way to elucidate risk factors of infections caused by major antimicrobial-resistant pathogens.
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民族主義 이데올로기 영향하에서의 중국 외교정책에 대한 고찰-'炎帝ㆍ黃帝숭배' 연구를 중심으로
이재광 동북아역사재단 2008 東北亞歷史論叢 Vol.- No.20
The consciousness of nationalism of Chinese who are named as "springs of emperor Yan and emperor Huang "by themselves began from early 20th century. After some years' development, it has become into a kind of radically dilated ideological trend of nationalism. And the studies about emperor Yan and Huang have passed a process from weak to strong, too. The process of enlarging the definition of Huaxia and the studies of admiration of emperor Yan and emperor Huang took the role of strengthening the cohesion and promotion the harmony between different nations in China since ancient history. Now a new trend of thoughts, which is based on the study of emperor Yan and emperor Huang, by which the unity of nations was promoted inside and the image of strong China is setting up outside, started in China, which developed rapidly and faces the challenge of the international wave. But the combination of the trend of admiration of the emperor Yan and emperor Huang and the radical nationalism gives a new challenge to the development of China and how to deal with the relationship with the around countries. This kind of radical nationalism without control, which is based on the study of emperor Yan and emperor Huang, will be very dangerous, although it's significant both in history and reality. "炎黃의 자손'이라 스스로 칭하는 중국인의 민족주의 의식은 사실 20세기 초기에 시작되었다. 이후에 부단한 발전을 거쳐서 오늘날에는 극도로 팽창된 민족주의를 형성하였다. 이외에 炎黃二帝의 崇拜와 연구도 쇠락에서 융성되는 과정을 거쳤다. 上古史를 추적해보면 華夏觀의 과정과 염황 숭배의 연구도 똑같이 다른 민족 간의 응집력을 발전 시켰고, 민족 융합의 작용을 촉진시켰다. 오늘날 신속하게 崛起되고 세계화의 풍랑 도전에 직면한 중국은 다시 한 번 염황 숭배의 열렬한 갈망으로 민족단결을 촉진시키고 대국이미지로서의 전략을 강화시켰다. 그러나, 현재 중국의 염황 숭배와 급진적인 민족주의 정서는 서로 결합되어서 중국 민족주의의 발전에 대해 새로운 시험대를 형성했는데 이 또한 중국과 주변국가간 사이에 어떻게 갈등을 처리할 것인가에 대하여 도전장을 준 것이다. 비록 중국은 현재 다시금 염황 연구에 대해서 역사적인 의의와 현실적인 의의를 크게 발전시키고 있지만, 그러나 이러한 염황 연구를 始點으로 해서 극도로 팽창된 민족주의를 만약 원만히 통제 못하면 장래는 극히 위험으로 빠져 질 것이다.
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Crystallographic and Magnetic Properties of Zn-Mn Ferrite
이재광,채광표,김정훈,이영배 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.2I
Zn-Mn ferrite powders and films, Zn1.xMnxFe2O4, have been fabricated by using the ceramic and the sol-gel methods, and their crystallographic and magnetic properties were investigated. Using X-ray diffraction, we confirm the formation of crystallized particles in Zn1.xMnxFe2O4 ferrite powders and films. The Zn-Mn ferrite, Zn1.xMnxFe2O4, has a single spinel structure, and the lattice constants of the ferrite powders and the films increase when the Mn concentration is increased. For the ferrite powders, the M¨ossbauer spectra at room temperature show a doublet for x = 0.0 and x = 0.2, a relaxation state for x = 0.4, and two Zeeman sextets for x = 0.8 and x = 1.0 due to the tetrahedal and octahedaral sites of Fe3+ ions. The cation distributions for x = 1.0 and 0.8 could be written from the M¨ossbauer subspectra are as (Mn0.20Fe0.80)[Mn0.80Fe1.20]O4 and (Zn0.20 Mn0.10Fe0.70)[Mn0.70Fe1.30]O4, respectively. The magnetic behavior of Zn1.xMnxFe2O4 ferrite powders and films reveals that an increase in the Mn concentration yields a decrease in the coercivity and, conversely, an increase in the saturation magnetization. The maximum saturation magnetization of the Zn1.xMnxFe2O4 ferrite powder is 11.7 emu/g, and the minimum coercivity is 15.01 Oe at x = 0.60, these constitute low values for ZnFe2O4 ferrite powders. On the other hand, the coercivity of Zn1.xMnxFe2O4 ferrite film decreases when the Mn concentration x is lower than 0.75 and increases slightly until x = 0.90. Under the parallel external field the maximum coercivity Zn1.xMnxFe2O4 ferrite film is 274.1 Oe at x = 0.25 and the minimum coercivity is 133.4 Oe at x = 0.75. While the maximum coercivity is 234.7 Oe at x = 0.10 and the minimum coercivity is 131.4 Oe at x = 0.75 under the perpendicular external field.
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이재광 한국외국어대학교 중국연구소 2006 中國硏究 Vol.38 No.-
The Control and Management of the Service Quality of Chinese Utilities : The Case Study of Department of Education Lee, Jea-kwang As a kind of service organization, the utilities are closely related to the public lives. It is important and urgent to supervise the service quality of the Chinese utilities because of its obvious service and public characters. According to the actual conditions of the utilities in China, this paper draws lessons from the research achievement of service quality and service quality management, and analyzes the current situation and existing problems about service quality and the supervision of service quality in China. The model of comprehensive service quality management was introduced into the evaluation of service quality in utilities in China, and the department of education was analyzed as an example. So a set of supervisory system of service quality was established in this paper.
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