• 제목/요약/키워드: real events

검색결과 712건 처리시간 0.032초

입공결함(人工缺陷)에 의한 AE발생원(發生原) 위치표정(位置標定)과 신호해석(信號解析) (AE Source Location and Evaluation of Artificial Defects)

  • 문용식;정현규;주영상;이종포
    • 비파괴검사학회지
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    • 제5권2호
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    • pp.22-33
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    • 1986
  • The application and development of on-line monitoring technology of AE to surveillance of crack propagation will contribute to the structural integrity of reactor pressure vessel and piping system. This research has been performed in order to obtain the evaluation technology for source location of AE and the analysis for the AE signal of the welded specimen. AE is detected by 4-channels AE system during pressurization in small pressure vessels. The cracking of artificial defects can be accurately located and categorized in real time. The welded specimens have more events rate and higher amplitude than the weldless less specimens, and the events rate have a peak around the yield point and just before the failure under tensile test.

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생물테러 대비 감염전문가 네트워크 운영 활성화 방안 연구 (Analysis of Policies in Activating the Infectious Disease Specialist Network (IDSN) for Bioterrorism Events)

  • 김양수
    • Journal of Preventive Medicine and Public Health
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    • 제41권4호
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    • pp.214-218
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    • 2008
  • Bioterrorism events have worldwide impacts, not only in terms of security and public health policy, but also in other related sectors. Many countries, including Korea, have set up new administrative and operational structures and adapted their preparedness and response plans in order to deal with new kinds of threats. Korea has dual surveillance systems for the early detection of bioterrorism. The first is syndromic surveillance that typically monitors non-specific clinical information that may indicate possible bioterrorism-associated diseases before specific diagnoses are made. The other is infectious disease specialist network that diagnoses and responds to specific illnesses caused by intentional release of biologic agents. Infectious disease physicians, clinical microbiologists, and infection control professionals play critical and complementary roles in these networks. Infectious disease specialists should develop practical and realistic response plans for their institutions in partnership with local and state health departments, in preparation for a real or suspected bioterrorism attack.

2-채널 뇌파분석 및 데이터 관리 소프트웨어 (Two-Channel EEG Analysis and Data Management Software)

  • 강동기;김동준;유선국;김선호
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1998년도 추계학술대회
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    • pp.193-194
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    • 1998
  • This paper describes a multi-functional EEG (electroencephalogram) software. The software manages the patient's EEG data systematically and analyzes the signal and display the parameters on a PC monitor in real-time. Since the software provides various parameters simultaneously, user can observe patients multilaterally. Reference patterns of CSA and DSA can be captured and displayed on top of the monitor. And user can mark events of surgical operation or patient's conditions, so it is possible to jump to the points of events directly, when reviewing the recorded file afterwards. Many convenient functions are equipped and these are operated by mouse clicks.

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원자로 제어봉구동장치 제어시스템용 이벤트 기록 방법 (Event Logging Method for Control Rod Control System)

  • 천종민;김춘경;조창희;정순현;남정한
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 B
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    • pp.552-554
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    • 2003
  • This paper is about the method by which Power Control Unit(PCU) of Control Rod Control System(CRCS) logs events in the system and the real-time monitoring display. This method enables the functions like the event logging of Control Rod Drive Mechanism(CRDM)/power Cabinet, the off-line show of the event data logged and the on-line show by communication between the PCU and the monitoring display. Operators in a nuclear power plant must be able to grasp any possible abnormal states correctly. Because our newly designed system has a good ability to log and display the kinds, tine, and the prior and posterior states of urgent or non-urgent events, the operators can judge, maintain and repair the abnormal event more easily.

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Application of a Distribution Rainfall-Runoff Model on the Nakdong River Basin

  • 김광섭;순밍동
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2012년도 학술발표회
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    • pp.976-976
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    • 2012
  • The applicability of a distributed rainfall-runoff model for large river basin flood forecasts is analyzed by applying the model to the Nakdong River basin. The spatially explicit hydrologic model was constructed and calibrated by the several storm events. The assimilation of the large scale Nakdong River basin were conducted by calibrating the sub-basin channel outflow, dam discharge in the basin rainfall-runoff model. The applicability of automatic and semi-automatic calibration methods was analyzed for real time calibrations. Further an ensemble distributed rainfall runoff model has been developed to measure the runoff hydrograph generated for any temporally-spatially varied rainfall events, also the runoff of basin can be forecast at any location as well. The results of distributed rainfall-runoff model are very useful for flood managements on the large scale basins. That offer facile, realistic management method for the avoiding the potential flooding impacts and provide a reference for the construct and developing of flood control facilities.

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The transmuted GEV distribution: properties and application

  • Otiniano, Cira E.G.;de Paiva, Bianca S.;Neto, Daniele S.B. Martins
    • Communications for Statistical Applications and Methods
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    • 제26권3호
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    • pp.239-259
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    • 2019
  • The transmuted generalized extreme value (TGEV) distribution was first introduced by Aryal and Tsokos (Nonlinear Analysis: Theory, Methods & Applications, 71, 401-407, 2009) and applied by Nascimento et al. (Hacettepe Journal of Mathematics and Statistics, 45, 1847-1864, 2016). However, they did not give explicit expressions for all the moments, tail behaviour, quantiles, survival and risk functions and order statistics. The TGEV distribution is a more flexible model than the simple GEV distribution to model extreme or rare events because the right tail of the TGEV is heavier than the GEV. In addition the TGEV distribution can adjusted various forms of asymmetry. In this article, explicit expressions for these measures of the TGEV are obtained. The tail behavior and the survival and risk functions were determined for positive gamma, the moments for nonzero gamma and the moment generating function for zero gamma. The performance of the maximum likelihood estimators (MLEs) of the TGEV parameters were tested through a series of Monte Carlo simulation experiments. In addition, the model was used to fit three real data sets related to financial returns.

Multiplexed single-molecule flow-stretching bead assay for DNA enzymology

  • Lee, Ryanggeun;Yang, Keunsang;Lee, Jong-Bong
    • BMB Reports
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    • 제52권10호
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    • pp.589-594
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    • 2019
  • Single-molecule techniques have been used successfully to visualize real-time enzymatic activities, revealing transient complex properties and heterogeneity of various biological events. Especially, conventional force spectroscopy including optical tweezers and magnetic tweezers has been widely used to monitor change in DNA length by enzymes with high spatiotemporal resolutions of ~nanometers and ~milliseconds. However, DNA metabolism results from coordination of a number of components during the processes, requiring efficient monitoring of a complex of proteins catalyzing DNA substrates. In this min-review, we will introduce a simple and multiplexed single-molecule assay to detect DNA substrates catalyzed by enzymes with high-throughput data collection. We conclude with a perspective of possible directions that enhance capability of the assay to reveal complex biological events with higher resolution.

NOTES ON ANTIQUITY IN WESTERN LATE MODERNITY THROUGH NOVEL AND FILM

  • Bertoni, Roberto
    • 영미문화
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    • 제14권1호
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    • pp.53-71
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    • 2014
  • This paper is about some aspects of the late-modern representation of antiquity in Western countries. The timeframe is mostly the decades since the 1980s, but some works are also mentioned from previous phases. Some information is given on the late-modern historical novel, characterized by mixture of genres and intertextual references to historical events and contemporary varieties of discourse. Eclecticism would seem to be a characteristic feature, and it mainly consists of a mixture of real events and imagination, cohabitation of ancient settings and modernized characters, and interaction between high and low culture. Commercialization often accompanies novels on antiquity in the $21^{st}$ century. And ideologies such as romanness, germanism and barbarianism are employed by some authors to refer to contemporary realities. A number of films and novels are mentioned. More specific analysis focuses on Valerio Manfredi's The Last Legion and the film based on the book; Simon Scarrow's Gladiator: The Fight for Freedom; and Robert Harris's Pompeii.

실시간 퍼지 시간논리구조를 이용한 교차로 네트워크의 모델링과 제어 (Modeling and Control of Intersection Network using Real-Time Fuzzy Temporal Logic Framework)

  • 김정철;이원혁;김진권
    • 제어로봇시스템학회논문지
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    • 제13권4호
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    • pp.352-357
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    • 2007
  • This paper deals with modeling method and application of Fuzzy Discrete Event System(FDES). FDES have characteristics which Crisp Discrete Event System(CDES) can't deals with and is constituted with the events that is determined by vague and uncertain judgement like biomedical or traffic control. We proposed Real-time Fuzzy Temporal Logic Framework(RFTLF) to model Fuzzy Discrete Event System. It combines Temporal Logic Framework with Fuzzy Theory. We represented the model of traffic signal systems for intersection to have the property of Fuzzy Discrete Event System with Real-time Fuzzy Temporal Logic Framework and designed a traffic signal controller for smooth traffic flow. Moreover, we proposed the method to find the minimum-time route to reach the desired destination with information obtained in each intersection. In order to evaluate the performance of Real-time Fuzzy Temporal Logic Framework model proposed in this paper, we simulated unit-time extension traffic signal controller model of the latest signal control method on the same condition.

Factors Affecting the Development of Vietnamese Construction and Real Estate Companies

  • PHAN, Giang Lam;NGUYEN, Thuy Dieu;NGUYEN, Chi Thi;NGUYEN, Lan;TRAN, Le Thi
    • The Journal of Asian Finance, Economics and Business
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    • 제9권9호
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    • pp.93-104
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    • 2022
  • This study aims to investigate the factors that contribute to the sustainable development of 334 Vietnamese construction and real estate companies listed on the Stock Exchange of Vietnam over a 5-year period from 2016 to 2020. By using regression analysis with the support of STATA software through examining the financial statements, which involves looking into crucial ratios including capital structure, profitability, firm size, accounts receivable management, and tangible assets investment, this study sheds light on whether these accounting indicators could help predict the construction and real estate companies growing potential in the future. Nevertheless, these ratios slightly contribute to the explanation of the change in revenue growth ratio, with a result of 1.6%, indicating that the value relevance of accounting information provides a modest and insignificant effect on investment decisions. This is understandable because the Vietnamese construction and real estate market still has many shortcomings in handling unexpected events, as well as the industry's peculiarities related to major capital sources from bank loans. Based on this study, governmental authorities and business executives should plan appropriate risk management policies and measures to contribute to the sustainable development of construction and real estate companies.