• Title/Summary/Keyword: procedural error

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The Operators' Non-compliance Behavior to Conduct Emergency Operating Procedures - Comparing with the Complexity of the Procedural Steps

  • Park Jinkyun;Jung Wondea
    • Nuclear Engineering and Technology
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    • v.35 no.5
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    • pp.412-425
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    • 2003
  • According to the results of related studies, one of the typical factors related to procedure related human errors is the complexity of procedures. This means that comparing the change of the operators' behavior with respect to the complexity of procedures may be meaningful in clarifying the reasons for the operators' non-compliance behavior. In this study, to obtain data related to the operators' non-compliance behavior, emergency training records were collected using a full scope simulator. And three types of the operators' behavior (such as strict adherence, skipping redundant actions and modifying action sequences) observed from the collected emergency training records were compared with the complexity of the procedural steps. As the results, two remarkable relationships are obtained. They are: 1) the operators seem to frequently adopt non-compliance behavior to conduct the procedural steps that have an intermediate procedural complexity, 2) the operators seems to accommodate their non-compliance behavior to the complexity of the procedural steps. Therefore, it is expected that these relationships can be used as meaningful clues not only to scrutinize the reason for non-compliance behavior but also to suggest appropriate remedies for the reduction of non-compliance behavior that can result in procedure related human error.

A Study on Circular Contour Machining Error

  • Namkoong, Chaikwan
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.11 no.5
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    • pp.100-105
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    • 2002
  • The comprehensive system analysis for contour milling operation and its error has performed in this study. The obtained experimental results were from the practical points of view. In down-milling operation the contour error curve illustrates bigger thean actual workpiece radius. The contour error increased when the cutter loads increased. Through the procedural evaluation, it could ascertain the characteristics of generation mechanics in circular contour machining error, and the weight of each factors.

Dental microscope in Nonsurgical Endodontics (임상가를 위한 특집 3 - 현미경을 이용한 비외과적 근관치료)

  • Kim, Jin-Woo
    • The Journal of the Korean dental association
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    • v.51 no.10
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    • pp.556-564
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    • 2013
  • Modern endodontics has essentially changed following the introduction of the dental microscope since 1990's. One of main advantage of using dental microscope in nonsurgical endodontic treatment is enhancing clinician's ability and quality of treatment through illumination and magnification. Scopes of dental microscope in nonsurgical endodontics are finding a missed or additional root canal and a tooth crack, management of procedural errors, and others. These improvements in technology will result in greater confidence in treatment and better success in clinical practice.

Employee Performance Optimization Through Transformational Leadership, Procedural Justice, and Training: The Role of Self-Efficacy

  • KUSUMANINGRUM, G.;HARYONO, Siswoyo;HANDARI, Rr. Sri
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.12
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    • pp.995-1004
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    • 2020
  • This study aims to analyze the effect of transformational leadership (TL), procedural justice (PJ), and training (T) on employee performance (EP) mediated by self-efficacy (SE). The object of this research is Rumah Sakit Umum Daerah (RSUD) M.Th. Djaman, a hospital in Sanggau Regency, while the subjects are the institution's staff. Data collection search uses purposive sampling with a total of 120 samples. Data are obtained through questionnaires distributed directly to respondents using the Google Form application. Data analysis techniques used in this study include standard error of mean (SEM) with AMOS software version 24.00. Methods use to test validity and reliability of data include Confirmatory Factor Analysis (CFA), Construct Reliability (CR) and VE. The results of the analysis show that only training has a significant effect on self-efficacy, and self-efficacy has a significant effect on employee performance. Also, self-efficacy is proven to mediate the role of training on employee performance; the other hypotheses are not significant. Training is the most prominent positive factor affecting self-efficacy and self-efficacy has a significant effect on employee performance at RSUD M.Th. Djaman. The results of this study can be used as a reference by management in determining what policy priorities should take precedence.

Contour machining error in NC milling process

  • Namkoong, Chikwan;Yellowely, I.
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.10 no.6
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    • pp.116-125
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    • 2001
  • The comprehensive system analysis for contour milling operation has performed in this study, which combined the each element with proper connectivity into closed loop system, and determined the system response by numerical simulation technique. The obtained simulated results were then compared with the experimental results from the practical points of view, and so forth, the governing equations were formulated into the estimation model, which predicted the total contour machining error within 25% accuracy. Through the procedural evaluation, it could ascertain the characteristics of generation mechan- ifs in circular contour machining error, and the weight of each factor.

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The Necessity for Introduction of ICSID Appellate System (ICSID 상소제도의 도입 필요성)

  • Kim, Yong Il
    • Journal of Arbitration Studies
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    • v.29 no.4
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    • pp.187-210
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    • 2019
  • This article examines the necessity for the introduction of an ICSID Appellate System. In comparison with the WTO appellate system, the ICSID ad hoc Committee has a very limited mandate. An annulment inquiry under the ICSID arbitration system barely focuses on whether the arbitral decision resulted from a justifiable process. As long as there is procedural legitimacy, the resulting awards remain unaffected under the annulment procedure, irrespective of mistakes of fact or law. In contrast, in the WTO DSS the AB substantively reviews panel rulings and suggestions that are founded on any deficiency of objectivity or error in the interpretation of a particular WTO provision. This defect intrinsic in the annulment procedure could cause injustice to a party earnestly interested in correcting recognized misapplication of law by ICSID tribunals. Accordingly, the establishment of an appellate system would result in a more substantive and procedural review of awards. The creation of such an ICSID appellate system would ensure thorough scrutiny of the decisions of the tribunal of first instance, leading to better reasoned outcomes. This could lead to a crystallization of predictability in investment relations. The end result would be that fairness, clarity, reliability, and legality in the ICSID adjudicative process would be unassailable, to the advantage of all the contracting parties.

Simulation-Based Fault Analysis for Resilient System-On-Chip Design

  • Han, Chang Yeop;Jeong, Yeong Seob;Lee, Seung Eun
    • Journal of information and communication convergence engineering
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    • v.19 no.3
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    • pp.175-179
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    • 2021
  • Enhancing the reliability of the system is important for recent system-on-chip (SoC) designs. This importance has led to studies on fault diagnosis and tolerance. Fault-injection (FI) techniques are widely used to measure the fault-tolerance capabilities of resilient systems. FI techniques suffer from limitations in relation to environmental conditions and system features. Moreover, a hardware-based FI can cause permanent damage to the target system, because the actual circuit cannot be restored. Accordingly, we propose a simulation-based FI framework based on the Verilog Procedural Interface for measuring the failure rates of SoCs caused by soft errors. We execute five benchmark programs using an ARM Cortex M0 processor and inject soft errors using the proposed framework. The experiment has a 95% confidence level with a ±2.53% error, and confirms the reliability and feasibility of using proposed framework for fault analysis in SoCs.

Improvement of Bit Error Rate of 16×40 Gbps NRZ-formated WDM Signals over 1,000km NZ-DSF using MSSI with Optimal Parameters (1,000km의 비 영 분산 천이 광섬유로 구성된 WDM 시스템에서 최적 파라미터를 갖는 MSSI를 이용한 NRZ 형식의 16×40 Gbps WDM 신호의 비트 에러율 개선)

  • Lee, Young Kyo
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.6 no.3
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    • pp.111-119
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    • 2010
  • In this paper the numerical methods of finding out the optimal position of optical phase conjugator (OPC) and the optimal fiber dispersion are proposed, which are able to effectively compensate overall channels in $16{\times}40$ Gbps WDM system. And the compensation characteristics in the system with two induced optimal parameters are compared with those in the system with the currently used mid-span spectral inversion (MSSI) in order to confirm the availability of the proposed methods. It is confirmed that the reception performances are largely improved in the system with the induced optimal parameters than in the system with MSSI through the analyzing the eye opening penalty (EOP) and bit error rate (BER) characteristics. It is also confirmed that two optimal parameters depend on each other, but are less related with the procedural problem about the first optimal value among these parameters.

Human Performance Analysis of Emergency Tasks in Nuclear Power Plant (원자력발전소 비상직무에 대한 인적수행도 분석)

  • Jung, Won-Dae;Park, Jin-Kyun;Kim, Jae-Whan
    • Journal of the Ergonomics Society of Korea
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    • v.21 no.3
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    • pp.13-24
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    • 2002
  • Reduction and prevention of human error is one of the major interests for the enhancement of system safety and availability in Nuclear Power Plants (NPPs). As human beings have become the weak point in the system safety, a systematic evaluation on human performance during emergency situation should be performed in advance to identify the potential vulnerability of human tasks. Though the data gathering and analysis from real field is an important precondition, there were no available data in nuclear field of korea. This paper presents the result of human performance analysis on emergency tasks in NNPs. Firstly, a task analysis was performed to identify the characteristics of operator tasks during emergency condition and to classify them into a set of generic emergency tasks. Secondly, simulation data were collected and analyzed for the emergency tasks using the full scope simulator of Younggwang NPPs. The analyzed human performance information cover the event diagnosis time, the execution time of each procedural step, observation parameters, typer of irrelevant response, pattern of communication among staffs, and so on. These performance data would be used for human reliability analysis and the research of human error as technical bases.

A Tool for Implementation of Expert System with Knowledge Management System (지식관리 시스템을 수반한 전문가 시스템 구축 도구)

  • 서의현
    • Journal of Intelligence and Information Systems
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    • v.9 no.3
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    • pp.49-63
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    • 2003
  • This paper proposes and implements a tool for the development of efficient and reliable expert system. In the expert system the inference is executed, based on the knowledges stored in the knowledge base of specific domain. To acquire the reliable results of inference, the expert system requires the facilities which can access the various kinds of knowledge and maintain the consistency and accuracy of knowledge. In this context this paper implemented the knowledge management system which maintains the consistency and accuracy of knowledge, adding selectively the knowledges without error to the knowledge base by verifying their error before the knowledges are added to the knowledge base. At the same time this paper made the expert system call and use the procedural knowledge and the declarative knowledge in the data base so that it might use the various kinds of knowledge in the process of inference.

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