• Title/Summary/Keyword: systematic factor

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GPS Integrity Monitoring Method Using Auxiliary Nonlinear Filters with Log Likelihood Ratio Test Approach

  • Ahn, Jong-Sun;Rosihan, Rosihan;Won, Dae-Hee;Lee, Young-Jae;Nam, Gi-Wook;Heo, Moon-Beom;Sung, Sang-Kyung
    • Journal of Electrical Engineering and Technology
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    • v.6 no.4
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    • pp.563-572
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    • 2011
  • Reliability is an essential factor in a navigation system. Therefore, an integrity monitoring system is considered one of the most important parts in an avionic navigation system. A fault due to systematic malfunctioning definitely requires integrity reinforcement through systematic analysis. In this paper, we propose a method to detect faults of the GPS signal by using a distributed nonlinear filter based probability test. In order to detect faults, consistency is examined through a likelihood ratio between the main and auxiliary particle filters (PFs). Specifically, the main PF which includes all the measurements and the auxiliary PFs which only do partial measurements are used in the process of consistency testing. Through GPS measurement and the application of the autonomous integrity monitoring system, the current study illustrates the performance of the proposed fault detection algorithm.

Chronic Infections of the Urinary Tract and Bladder Cancer Risk: a Systematic Review

  • Anderson-Otunu, Oghenetejiri;Akhtar, Saeed
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.8
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    • pp.3805-3807
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    • 2016
  • Literature on the relationship between recurrent urinary tract infections and urinary bladder carcinoma risk has been inconsistent. Therefore, we carried out this systematic review of observational studies to ascertain if there is any association between chronic urinary tract infection and urinary bladder carcinoma. A total of 10 databases were searched using Boolean: CINAHL, PUBMED, Google Scholar, Medline, Science Direct, SCIRUS, Cochrane, UK PubMed central, NHS evidence and WHO-website. The search yielded an initial hit of 3,518 articles and after screening and critical appraisal, seven studies were included for this review. Four articles reported an association between chronic urinary tract infections and bladder cancer while three concluded a weak or no association at least in one gender. Main findings in this review were that most of the studies reported an association between chronic urinary tract infections and bladder cancer risk. However, inferences about the causal association between chronic urinary tract infections and bladder cancer risk should be drawn cautiously considering the methodological limitations of case-control studies included in this review. Therefore, more empirical evidence is needed to determine the causal nature of relationships between chronic urinary tract infections and bladder cancer risk.

Effects of information strategic planning on the business competitiveness (정보화 전략계획이 기업 경쟁력에 미치는 영향 연구)

  • Kim Youngjin;Lee SeogJun;Kim Woobong
    • Journal of Information Technology Applications and Management
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    • v.12 no.1
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    • pp.91-109
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    • 2005
  • The reason why modern companies adopt cutting-edge technologies aggressively is mainly due to maintain the competitiveness in this cut-throat business environment. One of the most important technology factors to maintain the competitiveness in this modern e-business era is how to adopt and apply information technology(IT). More and more companies are trying to implement their management strategies by applying IT, and therefore it is now important to understand IT strategy. Many of leading-edge companies believe that they need a structured and systematic approach, called ISP (Information Strategy Planning), to secure competitive IT capability, and heavily invest their resources to achieve the excellence in IT. However, eventual effects from those investments are not always proportional since every investment has its own investment parameters and objectives. In this research, we tried to develop a systematic model to verify the relation between the business competitiveness and ISP. First, in order to include the factor 'ISP', we modified the models suggested by past research results, and then analyzed the influences from IT investments and quality of ISP on the IT excellence of businesses. To prove the validity of the developed model, several sets of surveys were performed for 66 companies in various industries including electronics, manufacturing, finance, and service. The result of the research has shown that the quality of ISP impacts more on a corporate's business competitiveness, but none on business output.

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Cloud Services for the forensic aspects of the investigative methods (클라우드 서비스에 대한 포렌식 측면의 수사 방법)

  • Park, Gi-Hong;No, Si-Young
    • Journal of Korea Society of Industrial Information Systems
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    • v.17 no.1
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    • pp.39-46
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    • 2012
  • In this paper, for the cloud system by explaining how the forensic aspects of the investigation. Smartphone Growth Entering a variety of applications were developed which cloud systems of personal information and information assets sharing applications as during incidents on the case evidence collection, an important factor, whereas such systematic investigative methods, born in the course of my investigation of the can be confusing. This paper on the forensic aspects of the cloud system by proposing a crime scene investigation procedures, investigative support, and aiding in the systematic collection of data to support evidence.

The Related Factors to Workplace Bullying in Nursing: A Systematic Review and Meta-analysis (간호사간 직장 내 괴롭힘 관련변인에 대한 체계적 문헌고찰과 메타분석)

  • Kang, Jiyeon;Lee, Minju
    • Korean Journal of Adult Nursing
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    • v.28 no.4
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    • pp.399-414
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    • 2016
  • Purpose: The purpose of this study was to review and identify factors relevant to workplace bullying in nursing. Methods: Twenty-three studies that met the criteria were selected from a sample of twenty-six studies. These articles were retrieved from a central literature databases (N=13,241). The total correlational effect size (ESr) for each related factor was calculated from Fisher's Zr. A funnel plot inspection (similar to scatter plot) with a trim-and-fill method was used to assess the publication bias of the meta-analyzed studies. Results: From the systematic review, fifty-one factors were identified as having an influencing effect. Fourteen factors (five individual and nine organizational factors) were eligible for meta-analysis. The individual factors included, self-esteem (ESr=-.31), psychological capital (ESr=-.26), and marital status (ESr=-.06) which were significantly correlated with workplace bullying. Organizational factors included, organizational tolerance (ESr=.48), supervisor incivility (ESr=.47), job stress (ESr=.46), group morale (ESr=-.36), group support (ESr=-.35), supervisor leadership (ESr=-.35), group identity (ESr=-.33), and structural empowerment (ESr=-.27). These factors were significantly correlated with workplace bullying. There were no publication biases except for both individual and organizational factors. Conclusion: Organizational factors have more of an greater impact than individual factors on workplace bullying. The results of this study support the need for intervention at the organizational level.

A Study on the Research of Big Five Personality Factors Affecting Creativity - The Case of K Institute -

  • Lee, Kil-Whoan;Song, Ha-Sik;Park, Jin-Hee
    • International Journal of Contents
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    • v.6 no.3
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    • pp.38-46
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    • 2010
  • In this study, five personality types of employees have any impact on their creativity, a systematic and comprehensive study of literary research and demonstration studies were parallel. Results of the research employee of the extroversion, agreeableness of their creativity (+) showed the impact. In addition, sincerity, openness to experience, personality and creativity of employee creativity (+) for influencing said. Neuroticism to creativity, but nature does not affect any found. This study, five personality types that affect employee creativity of individuals by examining the relationship between personality type and creativity by presenting a model for the study, employees' personality types can have on creativity and offers a realistic alternative to the theory presented you can find the meaning in that. These theoretical and empirical validation of the results of employee productivity oriented organizations, including human resource management in a systematic and reasonable for the type of personality tests are being conducted on the administrative feasibility is expected to be able to provide. Finally, based on the results of these studies, management and administrative implications and future research directions presented.

Influence Factor Analysis for Feasibility Study of Building Projects (상업건축물의 사업타당성 영향요인 분석)

  • Son, Ki-Young;Kook, Dong-Hoon;Kim, Sun-Kuk
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2006.11a
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    • pp.462-466
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    • 2006
  • The startingpoint of successful buildingproduction process is the feasibility study of the project. If the feasibility study is poor which is affected in direct production processes such as designing and engineering, it incurs a great unrecoverable loss to the company. The governmentinstitutionalized the feasibility study for projects that budgets over 50billion won in an effort to ensure competitiveness of the construction industry after IMF; however, the system and effort to created systematic studies or guidance preparation for private construction development projects are lacking in great deal. Therefore, the objective of this study is to establish the analysis factors of feasibility study and evaluation standard by systematic analysis in consideration of the changes of various variables and mutual relationships using system dynamics technique for office buildings among commercial buildings.

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A Study on the Actual Education Condition and Improvement Program of Fire Investigator (화재조사자의 교육실태 및 개선방안에 관한 연구)

  • Choi, D.M.;Park, C.W.;In, S.J.;Lee, C.W.
    • Fire Science and Engineering
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    • v.21 no.4
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    • pp.72-80
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    • 2007
  • In order to breed fire investigators, can scientifically find out the truth of fire causes, the development of special and systematic education programs and the repetitive retraining are the most important factor. In this study, the working problems of curriculum for fire investigation course were analyzed through the survey. The curriculum and management status of domestic and foreign professional fire investigation education authority were compared and analyzed. And we suggested that the possible solutions to the problem, which can affect on the education effects, curriculums, training methods, selective methods, and effective applying method.

An Impact on Management Performance by Risk Management System and Risk Management Factor (리스크관리 체계 및 리스크관리 요인이 경영성과에 미치는 영향)

  • Jeung, Jae Hee;Ahn, Yeon S.
    • Journal of Information Technology Services
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    • v.14 no.3
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    • pp.117-129
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    • 2015
  • For the continuous growth of firms, the contributions of effective risk management system are required. This research analyzes the impact on the firm's performance related to risk management structure which includes the risk management system, risk management activity and risk management competency. In this research, the structural equation model considering the variable which contains enterprise risk management system, risk management activity and risk management competency was suggested. Also risk management organization and management procedures are identified as in enterprise risk management system. The implementation activity and control activity were the factors related in risk management activity. And risk management competency can be described as the response level of managing risk in outside and inside the firms' environment. Finally this model was analysed empirically for 112 firms in Korea using SPSS 18.0 and Amos 16.0. As the results, the suggested hypothesis were adopted. So as to manage risk performance for their firms, the development of systematic Risk Management Framework is important for their risk management activity and risk management competency. Ultimately, we can conclude that the focusing to the systematic risk management approach could be effective on the firm's risk management performance.

An Analysis Study on the Children Furniture Design and Display Space in Italy - Focused on the Color Harmony Theory of Wilhelm Ostwald and Faber Birren - (이태리 아동 가구 디스플레이 공간 색채 분석 - 오스트발트 및 파버 비렌 색채조화론을 적용한 분석 -)

  • An, Hye-Ryoun;Choi, Kyung-Ran
    • Journal of the Korea Furniture Society
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    • v.22 no.4
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    • pp.252-264
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    • 2011
  • This research is regarding color-analyzing Italian children's furniture and display space, in which application method of furniture display is looked at by understanding relations of furniture and display space through theoretical consideration and by understanding each factor of composition. Moreover, it establishes a formality of scientific and systematic standard in the color scheme of furniture and display space through using NCS Color System and the related Color Harmony Theory of Ostwald and Faber Birren as analysis tools. In the process of analyzing the colors of furniture and display space, I aimed to comprehend color trend of Italian children's furniture display space by comparing and analyzing Italian children's furniture dealers. I was able to comprehend the color relationship between furniture and display space from the results of analysis of examples of children's furniture display space and analysis of color deviation. Therefore, with this research I suggest the primary data and application strategy from a systematic point of view through Color Harmony Theory in color scheme of children's furniture display space in contemporary Italy.

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