• 제목/요약/키워드: Quality Engineering

검색결과 20,444건 처리시간 0.044초

Development of Real-Time Internal Quality Evaluation Technique for Korean Red Ginseng using NIR Spectroscopy

  • Son, J.R.;Kim, G.;Kang, S.;Lee, K.J.
    • Agricultural and Biosystems Engineering
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    • 제7권1호
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    • pp.8-12
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    • 2006
  • This study was conducted to develop a real-time internal quality evaluation technique for Korean red ginseng using NIR spectroscopy while they were moving to be graded. Internal qualities of Korean red ginseng were defined by color, amount of white core and cavity in the red ginseng. To evaluate the internal quality, PLS (Partial Least Square) model was developed. Spectrum saturation can be occurred when most red ginseng has a sound internal quality expressed by higher light transmittance ratio, but that could not found in the ginseng of internal white core under the same light situation. And, if spectrum saturation is obtained, it is hard to identify the exact information of internal quality. In order to evaluate of the internal quality regardless of having internal normal core or white core, an integral time controlled method was used to obtain traditional spectrum. This procedure was applied in real-time process when red ginseng was moving to be graded in the line. Among the 450 samples including 223 internal normal ginsengs and 227 internal white core ginsengs, 315 ginsengs (70%) were used to develop a calibration model and 135 ginsengs were spent to validate the model. The result of quality evaluation by the model was very good showing SEP and bias were 0.3573 and 0.0310, respectively, and the accuracy was 95.6%.

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Kano의 이원적 품질모형과 Timko의 만족계수를 활용한 공학교육의 질 향상 방안 탐색 (An Improvement Method of Engineering Education Quality using Kano's Dualistic Quality Model and Timko's Satisfaction Coefficient)

  • 허영주;예철해
    • 공학교육연구
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    • 제21권3호
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    • pp.31-37
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    • 2018
  • The purpose of this study is to develop a method to improve the quality of engineering education by using Kano's dualistic quality model and Timko's customer satisfaction coefficient. The results of the study are as follows. Firstly, the top priority for major education is improve 'smooth support of class medium' as an attractive and one-dimensional quality element, and 'use of various examples' and 'specialty improvement of major curriculum' as an one-dimensional quality element. Secondly, the top priority for general education is improve 'liberal education curriculum' as an attractive quality element 'use of various examples' as an one-dimensional quality element. Thirdly, the top priority for extra-curriculum is develop and provide 'study support program of student' and 'voluntary service'. Fourthly, the top priority for administrative service and facilities is improve 'increase of scholarship' and expand 'service of welfare facilities as dormitory and refectory' as an one-dimensional quality element.

Developing an IFC-based database for construction quality evaluation

  • Xu, Zhao;Li, Bingjing;Li, Qiming
    • 국제학술발표논문집
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    • The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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    • pp.301-312
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    • 2017
  • Quality evaluation and control represent increasingly important concerns for construction quality management. There is an evident need for a standard data model to be used as the basis for computer-aided quality management. This study focuses on how to realize evaluation of construction quality based on BIM and database technology. In this paper, the reinforced concrete main structure is taken as an example, and the BP neural network evaluation model is established by inquiring current construction quality acceptance specification and evaluation standard. Furthermore, IFC standard is extended to integrate quality evaluation information and realize the mapping of evaluation information in BIM model, contributing to the visualization and transfer sharing of evaluation information. Furthermore, the conceptual entity model is designed to build quality evaluation database, and this paper select MySQL workbench system to achieve the establishment of the database. This study is organized to realize the requirement of visualization and data integration on construction quality evaluation which makes it more effective, convenient, intuitive, easy to find quality problems and provide more comprehensive and reliable data for the quality management of construction enterprises and official construction administratiors.

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공분산구조모델에 의한 싱글 PPM 품질혁신 운동 추진현황 분석 (An Analysis of Single PPM Quality Innovation's Status using Covariance Structure Model)

  • 구일섭;김태성
    • 산업경영시스템학회지
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    • 제28권4호
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    • pp.102-108
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    • 2005
  • Single PPM Quality Innovation Movement is originally developed quality program in Korea for supplier's quality level-up since 1995. The quality target is below the 10ppm(parts per million) in outgoing quality and delivered goods plus field claim. Recently 1,053 companies is received Single PPM Quality Certification from government. This quality program is to realized the anticipated results not only duality level's increasing, but also company's confidence, competitiveness. We were able to obtain participations of 75 questionnaire, and derived statistics by means of SPSS/PC version 10.0. In this study, we find the bottleneck factor for promotion and upgrade S-PPM, and suggest a way out of difficulties.

품질경영학회 50주년 특별호: 품질혁신 분야 연구 리뷰 (Literature Review on the Quality Innovation in KSQM for 50 Years)

  • 김종만;정욱;서준혁;배성민
    • 품질경영학회지
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    • 제44권1호
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    • pp.17-28
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    • 2016
  • Purpose: This paper reviews the papers on quality innovation 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 quality innovation issues Methods: We divide all of quality innovation issues into 2 categories: quality control circle, quality innovation and improvement Results: Dividing all of papers on quality innovation published in KSQM for 50 years into 2 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 quality innovation theory and practices in manufacturing and service industries

Rubbish, Stink, and Death: The Historical Evolution, Present State, and Future Direction of Water-Quality Management and Modeling

  • Chapra, Steven C.
    • Environmental Engineering Research
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    • 제16권3호
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    • pp.113-119
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    • 2011
  • This study traces the origin, evolution, and current state-of-the-art of engineering-oriented water-quality management and modeling. Three attributes of polluted water underlie human concerns for water quality: rubbish (aesthetic impairment), stink (ecosystem impairment), and death (public health impairment). The historical roots of both modern environmental engineering and water-quality modeling are traced to the late nineteenth and early twentieth centuries when European and American engineers worked to control and manage urban wastewater. The subsequent evolution of water-quality modeling can be divided into four stages related to dissolved oxygen (1925-1960), computerization (1960-1970), eutrophication (1970-1977) and toxic substances (1977-1990). Current efforts to integrate these stages into unified holistic frameworks are described. The role of water-quality management and modeling for developing economies is outlined.

AHP 모형을 이용한 패스트푸드산업의 서비스품질 측정에 관한 실증적 연구 (An Empirical Study on Measuring Service Quality of Fast-Food Industry using Analytic Hierarchy Process)

  • 이회식;최용정;이필재
    • 산업경영시스템학회지
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    • 제28권4호
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    • pp.7-13
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    • 2005
  • Many domestic studies related to service quality are performed but the study on computing Service Quality Score is not yet activated. Because Service quality measurement plays an important role in assessing service performance and diagnosing service problems, it is very important that service quality is measured exactly. Therefore this study offered realistic approach method for computing Service Quality Score by using T.L. Saaty's Analytic Hierarchy Process technique. That is, Service Quality Score of this study is computed by using customer's priority(weights) for five dimensions(Tangible, Reliability, Assurance, Responsiveness, Empathy). This method is more realistic than the existing method computed by an arithmetical average of dimension's variables.

SERVICE QUALITY EVALUATION INDICATORS FOR ASP-BASED PROJECT MANAGEMENT INFORMATION SYSTEM

  • Lee, Seul-Ki;Yu, Jung-Ho;Kim, Chang-Duk
    • 국제학술발표논문집
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    • The 3th International Conference on Construction Engineering and Project Management
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    • pp.1453-1462
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    • 2009
  • It is very important for performance of information system that we make an effort to raise user's satisfaction by continuously grasping user's requirement by evaluation of PMIS based on ASP service quality and reflecting this to information system. However, It is lack that developments of suitable evaluation index of PMIS based on ASP service quality. Hereupon, In this study, we propose the evaluation indicators. First, The evaluation area is classified by form the foundation of D & M IS Success Model (2003); system quality, information quality, service quality. Second, The detail evaluation item which include considerations which are gotten through investigation of the construction industry and PMIS based on ASP is grouping by form the foundation SERVQUAL which is a service quality evaluation tool proposed PZB(1988). It is suitable to evaluate PMIS based on ASP service quality in construction industry and able to evaluate various aspects.

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품질기록(品質記錄) 관리(管理)를 위한 효율적(效率的)인 System 수립(樹立) 방안(方案) (A Study on the Establishing Efficient System for the Control of Quality Records)

  • 이상복;김영세;홍경식
    • 품질경영학회지
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    • 제23권2호
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    • pp.103-112
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    • 1995
  • This paper describes the method of establishing efficient system for the control of quality records. To establish the best control system of quality records, the organization must not only understand ISO Code requirements for quality record complectly but also identify the documents to be controlled as a quality records correctly. In addition, when establishing the system, the organization must absolutely consider the fact that quality records shall be maintained to demonstrate conformance to specified requirements and the effective operation of the quality system. This will provide the guidance which need to establish the system for quality control to the organization which produces documents in accordance with ISO Code requirements.

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Site Quality Evaluation Prototype for Building Deck-plate Construction

  • Shim, Young-Bo;Cho, Dong-Hyun;Koo, Kyo-Jin
    • 한국건축시공학회지
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    • 제13권1호
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    • pp.90-100
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    • 2013
  • Deck-plates are widely used on construction sites, and have the advantage of enabling contractors to achieve a relatively uniform quality. But nevertheless, quality deviation in deck-plate construction can occur as the result of differences in site conditions and the experience of crew workers. In this study, the authors present a site quality evaluation prototype for building deck-plate construction. Through analyses of case studies and interviews with experts, standard quality check sheets and a quality management index were developed by estimating the importance of quality check items based on a Failure Mode and Effects Analysis (FMEA) method. The applicability and effectiveness of the prototype was evaluated through a case study and interviews with case participants. It was found that the prototype promoted an active quality management as a way of continuously improving quality management in deck-plate construction instead of passive quality inspection practice.