• 제목/요약/키워드: data recovery

검색결과 2,297건 처리시간 0.024초

정신간호사가 지각하는 정신질환자의 회복에 대한 인식, 자아존중감, 역할수행이 직무만족에 미치는 영향 (Perception of Recovery, Self-esteem, Role Performance, and Job Satisfaction in Psychiatric Mental Heath Nurse)

  • 류세앙;문소현;최정숙;김부희
    • 간호행정학회지
    • /
    • 제18권4호
    • /
    • pp.434-441
    • /
    • 2012
  • Purpose: The purpose of this study was to identify perception of recovery, self-esteem, role performance, job satisfaction and factors influencing job satisfaction of psychiatric mental heath nurses. Methods: Data were collected from 161 psychiatric nurses from G city & J province who understood the purpose of the study and agreed to participate. Data were analyzed using descriptive statistics, t-test, Pearson correlation coefficient, and multiple regression with SPSS 18.0. Results: There were significant differences in job satisfaction between upper 25% and lower 25% group for perception of recovery, self-esteem, and role performance. Results from the multiple regression analysis revealed difference in the related factors and in the magnitude of the relationship evaluated by standardized beta coefficients. Significant factors, listed by the magnitude of beta coefficients, were role performance, self esteem, roles and responsibilities in recovery, expectations regarding recovery in perception of recovery. These variables accounted for 16% of job satisfaction. Conclusion: Results indicate that to improve psychiatric nurses' job satisfaction, there is a need to develop programs including personal qualities and perception of recovery. Further research is necessary in order to establish consensus on roles of the related factors of job satisfaction.

서비스 회복이 고객의 행동 의도에 미치는 영향에 관한 연구 : 서비스 회복의 공정성과 진정성을 중심으로 (Justice and Authenticity of Service Recovery : Effects on Customer Behavioral Intention)

  • 박은지;김창곤;김명수;한장희
    • 유통과학연구
    • /
    • 제13권2호
    • /
    • pp.63-73
    • /
    • 2015
  • Purpose - Satisfaction with service is evaluated according to customers' subjective judgment. The expected value of customer service and its evaluations depend on the customers' position. The customer recognizes two different forms of service levels. One is satisfaction and the other is dissatisfaction. Customers who are satisfied want to receive the service in future. However, those dissatisfied try to change the service. The service provider tries to improve the service. There are two different service cycles. One is the successful cycle and the other is the failure cycle. This study aimed to empirically determine the effects of the justice and authenticity of service recovery on customer behavioral intention through an integrated approach to cognitive justice and psychological authenticity. Research design, data, and methodology - Based on a literature review, justice of service recovery was categorized into three types: distributive, procedural, and interactive. Then, authenticity was added to obtain four independent variables, along with recovery satisfaction as a parameter. Behavioral intention, as an outcome variable, was divided into the repurchase intention and positive word-of-mouth. The model and hypotheses were created and measurement items were developed. A questionnaire survey of items concerning the service recovery experience at family restaurants was conducted on college students and residents in Gwangju from September 30 to October 31, 2013. A total of 400 copies of the questionnaire were sent out and 385 were returned. Respondents answered questions about the importance of, and satisfaction with service recovery on a 5-point Likert scale. Excluding 174 copies without service failure experiences and 7 inappropriate copies, 204 copies were analyzed using SPSS 21.0 for Windows and AMOS 20.0 to determine the reliability and validity of measurements. The hypotheses were tested through a goodness-of-fit analysis. Results - First, distributive justice positively affected recovery satisfaction. Second, procedural and interactive justice had no impact. Third, authenticity positively affected recovery satisfaction. Fourth, distributive justice had relatively stronger effects on recovery satisfaction than authenticity. Fifth, recovery satisfaction significantly affected repurchase intention and positive word-of-mouth and it proved effective in mediation. Finally, additional analysis was performed for descriptive statistics of the principal variables by various demographic characteristics and significant differences were found in gender, occupation, and so on. Conclusions - This study has academic significance as the fairness and authenticity of service recovery were investigated to reveal the effects on behavior. The findings could be applied to a wide range of service recovery strategies. However, there are some limitations. First, data was collected only from the residents of Gwangju and most respondents were aged 20-30. Future studies should target a wide range of areas and age groups. Second, because the questionnaire used in this study targets only convenience family restaurants, the results of this study cannot be generalized to all services companies. Future research should be done on a wide range of industries such as hotels, airlines, and hospitals, and perform a comparison between sectors.

하이퍼레저 패브릭 블록체인을 활용한 시스템 복구 기법 (A System Recovery using Hyper-Ledger Fabric BlockChain)

  • 배수환;조선옥;신용태
    • 한국정보전자통신기술학회논문지
    • /
    • 제12권2호
    • /
    • pp.155-161
    • /
    • 2019
  • 오늘날 수많은 기업과 기관들은 인터넷을 사용한 서비스를 제공하고 있으며, 이를 효율적이고 안정적으로 관리할 수 있도록 정보시스템을 구축하고 운영한다. 정보시스템은 재해 또는 장애로 인해 정상적인 서비스를 제공 할 수 있는 기능을 손실할 가능성을 내포하고 있다. 이에 재해복구시스템을 활용하여 이를 대비하고 있다. 그러나 기존의 재해 복구시스템은 시스템 복구를 위한 파일이 손상되는 경우 정상적으로 복구를 수행할 수 없다. 이에 본 논문에서는 하이퍼레저 패브릭 블록체인을 활용하여 시스템 복구 파일의 무결성을 검증하고 복구를 진행할 수 있는 시스템을 제안한다. 블록생성을 위하여 PBFT 합의 알고리즘을 사용하며, 블록체인 네트워크의 리더 노드에 의해 수행된다. 장애 상황 발생 시 복구 대상의 복구 파일의 해시 값을 블록체인 내의 해시 값과 비교하는 검증 작업을 거쳐 복구 파일의 무결성을 확인하고 복구를 진행한다. 제안 기법의 평가를 위하여 기존의 시스템 복구기법과 데이터 정합성, 데이터 보존 여부, 복구 파일 무결성 검증, 제안 기법 사용 시 트래픽 발생량을 분석하여 실제 적용 가능 여부를 확인하였다.

40 Gb/s 광통신 수신기용 클락 복원 회로 설계 (Design of the Clock Recovery Circuit for a 40 Gb/s Optical Receiver)

  • 박찬호;우동식;김강욱
    • 한국전자파학회:학술대회논문집
    • /
    • 한국전자파학회 2003년도 종합학술발표회 논문집 Vol.13 No.1
    • /
    • pp.136-139
    • /
    • 2003
  • A clock recovery circuit for a 40 Gb/s optical receiver has been designed and implemented. The clock recovery circuit consists of signal amplifiers, a nonlinear circuit with diodes, and a bandpass filter Before implementing the 40 Gb/s clock recovery circuit, a 10 Gb/s clock recovery circuit has been successfully implemented and tested. With the 40 Gb/s clock recovery circuit, when a 40 Gb/s NRZ signal of -10 dBm was applied to the input of the circuit, the 40 GHz clock was recovered with the -20 dBm output power after passing through the nonlinear circuit. The output signal from the nonlinear circuit passes through a narrow-band filter, and then amplified. The implemented clock recovery circuit is planned to be used for the input of a phase locked loop to further stabilize the recovered clock signal and to reduce the clock jitter.

  • PDF

침몰선 잔존유 회수작업 평가모듈 개발에 관한 연구 (Assessment Module Formulation for the Trapped-Oil Recovery Operations from Sunken Vessels)

  • 강광구;이은방
    • 해양환경안전학회지
    • /
    • 제27권1호
    • /
    • pp.88-96
    • /
    • 2021
  • 각종 해양사고로 인해 유조선, 대형 여객선 및 화물선 등이 해저에 침몰하는 경우 선적된 화물유 또는 연료유는 해양환경에 대한 직접적 위험요소로서 안전하고 신속한 제거가 요구된다. 침몰선 잔존유 회수작업에서는 국내외 구난업체가 현장여건을 반영하여 다양한 방법 및 기술을 활용하고 있으나 작업과정 전반에 대한 합리적인 평가모듈에 대한 연구는 현재까지 비교적 미흡한 실정이다. 본 연구에서는 잔존유 회수작업 평가모듈 설계를 목적으로 상이한 작업환경에서 수행된 작업사례들의 자료를 조사하여 작업과정 단계를 사전준비, 작업실행, 작업완료 단계로 구분한 후 세부공정별 핵심요인을 도출하였다. 이후 이 핵심요인들을 평가할 수 있는 평가지표들을 구성하는 방식으로 평가모듈을 설계하였다. 평가에서 특정인의 주관적 의견을 최대한 배제하기 위해 최대한 계량적으로 평가할 수 있는 데이터 지표들로 평가항목을 구성하였으며, 잔존유 회수작업 사례에 적용하여 결과를 분석하고 그 유용성을 일부 검증하였다. 본 연구를 통해 도출된 침몰선 잔존유 회수작업 방법 및 기술 평가모듈을 각 회수작업의 사전 또는 사후 적정성을 검증하는데 도움이 될 수 있을 것으로 사료된다. 또한, 과거 또는 미래의 여러 작업사례 평가데이터 축척 및 피드백이 지속적으로 이루어진다면 잔존유 회수작업 전반에 대한 안전성, 효율성, 현장적용성 제고에 기여할 수 있을 것이라 기대한다.

종합병원 간호사의 직무착근도 관련 변인들 간의 관계 구조모형 (Structure equation modeling of job embeddedness in general hospital nurses)

  • 김경미;전소연;주현정;이연향;우경미
    • 한국간호교육학회지
    • /
    • 제28권2호
    • /
    • pp.204-217
    • /
    • 2022
  • Purpose: This study was conducted to determine the factors affecting a hypothetical model of testing for general hospital nurses' job embeddedness. Methods: Data were collected from August 20 to September 19, 2021, by a self-administered questionnaire answered by 428 general hospital nurses. The data were analyzed by SPSS and AMOS. Results: Nine of the hypothetical model's 12 hypotheses were supported by the data collected from all participants. The test results indicate that ego resilience, subjective career success, and recovery experience from job stress directly affect participants' job embeddedness. Nurses' work environments were reported to affect ego resilience and subjective career success, while at the same time ego resilience and subjective career success affected the participants' job embeddedness. Work-life balance was found to affect ego resilience and ego resilience affected subjective career success, and at the same time subjective career success directly affected participants' recovery experiences from job stress and job embeddedness. Of these variables, subjective career success had the strongest direct effect on participants' job embeddedness. Work-life balance affected the participants' recovery experiences from job stress, and their recovery experiences from job stress were found to directly affect job embeddedness. Conclusion: These results suggest that different management strategies to enhance hospital nurses' job embeddedness should address nurses' ego resilience, subjective career success, and recovery experiences from job stress.

정보시스템 재해복구의 핵심성공요인(CSF)과 실천방안에 관한 연구 (A Study on the Critical Success Factors and Practical Method of Information System Disaster Recovery : Assuring Business Continuity of Information System Interface Specification Modeling)

  • 정영희;이정훈;김은영
    • 한국IT서비스학회지
    • /
    • 제10권4호
    • /
    • pp.83-101
    • /
    • 2011
  • Since most of companies these days are utilizing the Information system actively, Information System is the most important factor which should be recovered in terms of Business Continuity. However, a lot of enterprises have been outsourcing their Disaster Recovery Center. Therefore, it is highly possible that the information system can not work well and result in the discontinuity of business when any trouble arises because of seperated plan of Business Continuity and Disaster Recovery. The study draws critical success factors for successful disaster recovery through researches of 42 documents. Then, factors are reviewed through interviews with consultants, experts of Business Continuity Plan and the information system officers of domestic banks. Domestic companies can make use of the study when they develop or renew Disaster Recovery Plan or Information System in terms of Business continuity.

Recovery Methods in Main Memory DBMS

  • Kim, Jeong-Joon;Kang, Jeong-Jin;Lee, Ki-Young
    • International journal of advanced smart convergence
    • /
    • 제1권2호
    • /
    • pp.26-29
    • /
    • 2012
  • Recently, to efficiently support the real-time requirements of RTLS( Real Time Location System) services, interest in the main memory DBMS is rising. In the main memory DBMS, because all data can be lost when the system failure happens, the recovery method is very important for the stability of the database. Especially, disk I/O in executing the log and the checkpoint becomes the bottleneck of letting down the total system performance. Therefore, it is urgently necessary to research about the recovery method to reduce disk I/O in the main memory DBMS. Therefore, In this paper, we analyzed existing log techniques and check point techniques and existing main memory DBMSs' recovery techniques for recovery techniques research for main memory DBMS.

A Scalable Recovery Tree Construction Scheme Considering Spatial Locality of Packet Loss

  • Baek, Jin-Suk;Paris, Jehan-Francois
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • 제2권2호
    • /
    • pp.82-102
    • /
    • 2008
  • Packet losses tend to occur during short error bursts separated by long periods of relatively error-free transmission. There is also a significant spatial correlation in loss among the receiver nodes in a multicast session. To recover packet transmission errors at the transport layer, tree-based protocols construct a logical tree for error recovery before data transmission is started. The current tree construction scheme does not scale well because it overloads the sender node. We propose a scalable recovery tree construction scheme considering these properties. Unlike the existing tree construction schemes, our scheme distributes some tasks normally handled by the sender node to specific nodes acting as repair node distributors. It also allows receiver nodes to adaptively re-select their repair node when they experience unacceptable error recovery delay. Simulation results show that our scheme constructs the logical tree with reduced message and time overhead. Our analysis also indicates that it provides fast error recovery, since it can reduce the number of additional retransmissions from its upstream repair nodes or sender node.

모터부하 특성에 따른 국내 전력계통의 전압 지연 회복 현상 분석 (An Analysis of Delayed Voltage Recovery Phenomenon according to the Characteristics of Motor Load in Korean Power System)

  • 이윤환
    • 전기학회논문지P
    • /
    • 제65권3호
    • /
    • pp.178-182
    • /
    • 2016
  • FIDVR(Fault Induced Delayed Voltage Recovery) is a phenomenon that recovery of the system voltage level delays after the fault. Cause of FIDVR phenomenon is motor load characteristic about voltage and reactive power. In low voltage condition, the motor go to stall state that consume large amount of reactive power. As a result, the voltage recovery problem is that of repeated occurrences of sustained low voltage following faults on the system. In this paper, analysis the characteristics of the motor load. And using the korean power system actual data, perform a case studies to voltage delay recovery phenomenon alleviation method. Change of each parameters by analyzing the effect on system and selecting an influence parameter. In addition, dynamic characteristic analysis of the resulting difference in the proportion by the motor load in power systems, considering the effect on the voltage stability.