• Title/Summary/Keyword: Paper Quality

Search Result 18,760, Processing Time 0.049 seconds

A Sensitivity Analysis of Parameters Affecting Indoor Air Quality Related to TVOC and HCHO Reduction

  • Kang, Hae Jin;Kim, Mi Yeon;Rhee, Eon Ku
    • Architectural research
    • /
    • v.14 no.3
    • /
    • pp.93-98
    • /
    • 2012
  • The objective of the study is to analyze the relative performance of factors affecting indoor air quality in multi-residential buildings in Korea. A study of the factors affecting indoor air quality is essential for establishing indoor air quality management strategies effectively. To observe the indoor air quality response following a modification of a given parameter, a sensitivity analysis was performed. The factors examined for the analysis include; wall/ceiling paper, adhesive for wall/ceiling paper, floor material, adhesive for floor material, and ventilation rate. The Experimental Design which identifies main effects among the design parameters with a few experiments was used to decrease the number of experiments. The simulation for indoor air quality was undertaken using a validated equation. Then, ANOVA(Analysis of Variance) was performed to evaluate the relative importance of each parameter affecting the indoor air quality. The result of the study indicates that the indoor air quality may be influenced most by adhesive for wall/ceiling paper, followed by ventilation rate and adhesive for floor material.

Application of Quality Statistical Techniques Based on the Review and the Interpretation of Medical Decision Metrics (의학적 의사결정 지표의 고찰 및 해석에 기초한 품질통계기법의 적용)

  • Choi, Sungwoon
    • Journal of the Korea Safety Management & Science
    • /
    • v.15 no.2
    • /
    • pp.243-253
    • /
    • 2013
  • This research paper introduces the application and implementation of medical decision metrics that classifies medical decision-making into four different metrics using statistical diagnostic tools, such as confusion matrix, normal distribution, Bayesian prediction and Receiver Operating Curve(ROC). In this study, the metrics are developed based on cross-section study, cohort study and case-control study done by systematic literature review and reformulated the structure of type I error, type II error, confidence level and power of detection. The study proposed implementation strategies for 10 quality improvement activities via 14 medical decision metrics which consider specificity and sensitivity in terms of ${\alpha}$ and ${\beta}$. Examples of ROC implication are depicted in this paper with a useful guidelines to implement a continuous quality improvement, not only in a variable acceptance sampling in Quality Control(QC) but also in a supplier grading score chart in Supplier Chain Management(SCM) quality. This research paper is the first to apply and implement medical decision-making tools as quality improvement activities. These proposed models will help quality practitioners to enhance the process and product quality level.

Cause-and-Effect Perspective on Software Quality : Application to ISO/IEC 25000 Series SQuaRE's Product Quality Model

  • Koh, Seokha
    • Journal of Information Technology Applications and Management
    • /
    • v.23 no.3
    • /
    • pp.71-86
    • /
    • 2016
  • This paper proposes a new software quality model composed of a hierarchy of software quality views and three software quality characteristics models. The software view hierarchy is composed of two levels : end view and means view at the first level, contingency view and intrinsic view as sub-views of means view. Three software quality characteristics models are activity quality characteristics model, contingency quality characteristics model, and intrinsic quality characteristics model, which correspond to end view, contingency view, and intrinsic view respectively. This paper also reclassifies characteristics of ISO/IEC 25000 series SQuaRE's software product quality model according to the proposed software quality model. The results illustrate clearly the shortcomings of SQuaRE's product quality model and how to overcome them. First of all, most of SQuaRE's product characteristics should be redefined and conceptually clarified according to the views on which they are really rested. Much more characteristics should be supplemented too. After that, rigorous empirical researches will become relevant. Causal relationships between activity quality characteristics and characteristics of means view should be empirically researched.

A Study on the Present Status of the Quality Evaluation Capability of Domestic Paper Industry -A Case Study for Fine Paper Industry (국내 제지산업의 품질평가 실태연구-백상지업체를 중심으로-)

  • 이학래;윤혜정;김태영;조중연
    • Journal of Korea Technical Association of The Pulp and Paper Industry
    • /
    • v.32 no.1
    • /
    • pp.94-100
    • /
    • 2000
  • This study was carried out to understand the present status of the quality evaluation capability of domestic fine paper industry. Six light weight coated papers and one wood containing printing and writing paper with similar basis weights were produced by seven paper companies and their properties were evaluated at four different testing laboratories of domestic fine paper mills. Paper properties including basis weight , thickness , tensile, tear , brightness , opacity, etc were examined , and the repeat ability and reproducibility of the test results were analyzed. Results showed that repeatability of the measurements within the laboratory was satisfactory . Reproducibility of the measurements between laboratories, however, was not satisfactory. This showed that strict implementation of the standard testing methods and periodic calibration of testing equipments should be made to improve quality evaluation capability of domestic fine paper industry.

  • PDF

SURVEY RESEARCH ON CONTINUOUS QUALITY IMPROVEMENT SYSTEM

  • Xu Jichao;Park Sung H.;Liu Hi
    • Proceedings of the Korean Society for Quality Management Conference
    • /
    • 1998.11a
    • /
    • pp.435-449
    • /
    • 1998
  • Continuous quality improvement (CQI) has been promoting progresses of the social, and which is being studied and applied in much more widespread area at present. This paper systematically studies and reports research results of continuous quality improvement, involved in several key viewpoints of CQI such as the background of management and engineering philosophy on CQI, the objectives of CQI, the ways to implement CQI, the objects of CQI based on process. In terms of management methodology, the results of discussion on Benchmarking & CQI, standardization management and its certification & CQI, TQM pyramid & CQI and self-assessment & CQI etc. are reported. In quality engineering field, CQI culture of variation reduction is presented. Actually this paper is a comprehensive research project report of 'Continuous Quality Improvement System', supported jointly by NSFC and KOSEF.

  • PDF

A Case Study of Continuous Improvement Methodology by Calculated Quality-Cost (품질비용 산정에 의한 지속적 개선 방법 사례 연구)

  • Lee, Kang-In;Han, Seok-Man
    • Journal of Korean Society for Quality Management
    • /
    • v.33 no.3
    • /
    • pp.19-30
    • /
    • 2005
  • Recently many organization to become survival in changing marketplace, they must commit to implementing tools, systems, and quality management techniques. In this paper we develop process method of Team's problem-solving to reduce in failure costs. This paper suggest the step process how to measure quality cost reasonably that works in all types organizations. Or what is continuous improvement? Continuous improvement can be described as the continuous reduction of variation. Variation has many sources(machines, methods, materials, measurements, people, and environments) and cause(special & common in organization). As quality cost are not the answer to every organization financial, or quality-related problem, it's real results are designing & implementing quality cost system might be the answer.

Is a General Quality Model of Software Possible: Playability versus Usability?

  • Koh, Seokha;Jiang, Jialei
    • Journal of Information Technology Applications and Management
    • /
    • v.27 no.2
    • /
    • pp.37-50
    • /
    • 2020
  • This paper is very exploratory and addresses the issue 'Is a general quality model of software possible?'. If possible, how specific can/should it be?' ISO 25000 Series SQuaRE is generally regarded as a general quality model which can be applied to most kinds of software. Usability is one of the 8 characteristics of SQuaRE's Product Quality Model. It is the main issue associated with SQuaRE's Quality in Use Model too. it is the most important concept associated software quality since using is the only ultimate goal of software products. Playability, however, is generally regarded as a special type of usability, which can be applied to game software. This common idea contradicts with the idea that SQuaRE is valid for most kinds, at least many kinds, of software. The empirical evidences of this paper show that SQuaRE is too specific to be a general quality model of software.

Assessment and Validation of the Reliability of Quality Measurement System for Wireless Data Services (무선데이터 서비스 품질 측정 시스템의 신뢰성 검증 및 평가)

  • Choi, Dong-Hwan;Park, Seok-Cheon
    • Journal of Information Technology Services
    • /
    • v.11 no.1
    • /
    • pp.239-246
    • /
    • 2012
  • The user increases around the WiBro and in which the mobile broad band service is the wireless internet base technology HSDPA, that is the cellular phone foundation technique, and moreover the issue about the user effective quality guarantee emerges but the quality control of the wireless network is the incomplete actual condition. Therefore, the reliability verification according to the development of the system for the performance measure for the continued wireless data service and it and evaluation are needed for the quality control. In this paper, the wireless data service quality measurement system was implemented with the design. The same test environment as the existing network performance measurement program was built for the reliability verification of the embodied device for measuring quality and evaluation and the cost performance was performed. It could confirm that design and embodied wireless data service quality measurement system operated accurately in this paper through the quality measure result value analysis.

Review on the TQM Literature appeared in KSQM (품질경영학회 50주년 특별호: 품질경영 분야 연구 리뷰)

  • Chung, Kyu Suk;Sin, Wan Seon;Baek, Dong-Hyun;Ju, Yong Jun
    • Journal of Korean Society for Quality Management
    • /
    • v.44 no.1
    • /
    • pp.43-60
    • /
    • 2016
  • Purpose: This paper reviews the papers on TQM issues which are published in the Journal of the Korean Society for Quality Management (KSQM) since 1965. The literature review is purposed to survey a variety of TQM issues for several categories. Methods: We divide all of TQM issues into 6 categories: ISO system, quality assurance, quality management theory, empirical study on quality management, quality awards, and quality management etc. Results: Dividing all of papers on TQM published in KSQM for 50 years into 6 categories, we provide a chronological roadmap for individual categories, and summarize the contents and contributions of surveyed papers. Conclusion: The review paper is expected to provide future direction to improve TQM theories and applications in manufacturing and service industries.