• 제목/요약/키워드: Quality Control

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소비자 보호를 위한 우리나라 공동주택 품질보장체계의 문제점과 개선방안 연구 (A Study on the Improvement of Housing Quality Control System for the Protection of Consumer)

  • 최재순;장성수
    • 한국주거학회논문집
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    • 제14권3호
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    • pp.77-84
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    • 2003
  • This study analyzes the necessity and situation of the improvement of housing quality control system for the consumer. we find several defeats of the Housing Quality Control System in Korea. Especially there is no any organization that manange the total housing quality control. So this study suggest the home warranty system should be established as soon as possible for protectings home-buyers and improving housing quality.

건설공사 품질확보를 위한 품질관리 관련자의 역할 및 호칭 정립 (The Establishment of Roles and Titles of Quality Control Personnel for Construction Project Quality Assurance)

  • 이창효;김병수
    • 대한토목학회논문집
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    • 제37권5호
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    • pp.871-878
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    • 2017
  • 건설공사의 품질관리 관련자는 품질관리계획 또는 품질시험계획을 수립 및 시행하고 공정에 따라 사용 자재의 적격 여부 확인, 시험 검사 장비의 관리, 품질교육, 자체 품질점검 및 조치, 부적합 제품 공정에 대한 지도 관리 및 품질시험 등을 시행하고 부실공사를 방지하여 사고를 예방하는 중요한 역할을 담당하고 있다. 그러나 관련기관은 품질관리 관련자에 대하여 관련 법 규정의 개정 시 시험요원, 품질관리자 등으로 호칭을 변경하면서 품질시험과 품질관리 업무에 대한 역할분담을 명확하게 제시하지 않았으며, 건설공사의 품질관리비 산정 및 인건비 적용 등에 혼란을 유발하였다. 따라서 이를 개선하기 위한 연구가 필요하다. 본 연구에서는 품질관리 관련자에 대하여 모호한 호칭관계를 관련 법 규정 등을 토대로 건설공사의 요구사항을 충족할 수 있도록 개선하고, 각각의 역할 및 호칭에 대하여 '품질시험자'와 '품질관리자'로 구분한다. 즉, 건설공사 품질관리 업무지침에서 규정한 "건설공사 품질시험기준"의 품질시험을 실시하는 자를 '품질시험자'로, 건설기술 진흥법 시행규칙에서 규정하는 품질관리계획 수립 및 시행업무를 수행하는 자를 '품질관리자'로 호칭하도록 규정한다.

휴리스틱접근법(接近法)에 의한 관리도(管理圖)의 경고한계선(警告限界線)에 관한 연구(硏究) (A Study on the Warning Limit of Statistical Control Chart by the Heuristic Approach)

  • 강효신
    • 품질경영학회지
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    • 제12권2호
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    • pp.15-24
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    • 1984
  • Since W.A. Shewhart (1931) developed the quality control method using the control chart, many theoretical and empirical works about such an analytical method have been done. However there are two major methods relating to the control chart analysis; the conventional 3 sigma control method and the warning limit method which has been suggested as a modification of the former. The conventional 3 sigma method requires to take a remedial action only when a quality characteristic is beyond the control limit (3 sigma). However, once a quality characteristic is over the control limit, searching and repairing an assignable cause requires time consuming job and high costs. Therefore if we set the warning limit between the central line and the control limit, we will be able to take remedial measures before too late. In spite of its advantage, much attention has not been paid to use the control chart with warning limit in Korean industries. The main object of this study is to examine improvement of quality and productivity when the control chart with warning limit is used.

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탄소중립과 대기질 개선 정책이 동아시아 근 미래 기후변화에 미치는 영향 (Impacts of Carbon Neutrality and Air Quality Control on Near-term Climate Change in East Asia)

  • 김윤아;최정;손석우
    • 대기
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    • 제33권5호
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    • pp.505-517
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    • 2023
  • This study investigates the impacts of carbon neutrality and air quality control policies on near-term climate change in East Asia, by examining three Shared Socioeconomic Pathways (SSPs) scenarios from five climate models. Specifically, low carbon and strong air quality control scenario (SSP1-1.9), high carbon and weak air quality control scenario (SSP3-7.0), and high carbon and strong air quality control scenario (SSP3-7.0-lowNTCF) are compared. For these scenarios, the near-term climate (2045-2054 average) changes are evaluated for surface air temperature (SAT), hot temperature extreme intensity (TXx), and hot temperature extreme frequency (TX90p). In all three scenarios, SAT, TXx, and TX90p are projected to increase in East Asia, while carbon neutrality reduces the increasing rate of SAT and hot temperature extremes. Air quality control strengthens the warming rate. These opposed mitigation effects are robustly forced in all model simulations. Nonetheless, the impact of carbon neutrality overcomes the impact of air quality control. These results suggest that fast carbon neutrality, more effective than an air quality control policy, is necessary to slowdown future warming trend in East Asia.

회전익 항공기 장축 조종로드 분할 형상의 품질 신뢰성에 관한 실증적 연구 (An Empirical Study on the Quality Reliability of the Split Shape of Long Control Rod for the Rotorcraft)

  • 임현규;김만태;최재형;김대한;장민욱;윤재휘
    • 품질경영학회지
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    • 제45권3호
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    • pp.365-377
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    • 2017
  • Purpose: In the A rotorcraft, the division of a long yaw control rod was studied to improve the heat treatment capability. The purpose of this study was to analyze whether division of yaw control rod affects quality reliability in the A rotorcraft and analyze whether it secured flight safety. Methods: The structural static test and the vibration durability test on the split shape of yaw control rod were carried out in order to examine and verify the existing structural analysis results. Results: Structural static test results showed that there were no cracks and vibration durability test results showed that there was no damage or breakage on the split yaw control rod. Conclusion: This study showed that the quality reliability was confirmed and thus the flight safety of the A rotorcraft was secured. And it is expected that the split technique of the yaw control rod will contribute to the development of the rotorcraft industry in the future.

QUALITY IMPROVEMENT FOR EXPERT BASE WITH CONTROL CHART TECHNIQUES

  • Liu Yumin;Xu Jichao
    • 한국품질경영학회:학술대회논문집
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    • 한국품질경영학회 1998년도 The 12th Asia Quality Management Symposium* Total Quality Management for Restoring Competitiveness
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    • pp.189-197
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    • 1998
  • The axiomatic hypothesis of the objective distribution of evaluation subjection will be proposed in this paper. On the basis of that, set up the random response model of the expert evaluation system and the quality control principle of expert base. Under this principle, develop the statistical quality control theory of expert base, further; provide the quality improvement technology for expert base.

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Factors Affecting Quality of Internal Control: A Case Study of Listed Banks in Vietnam

  • TRAN, Quoc Thinh;NGUYEN, Khanh Tuan;LE, Xuan Thuy
    • The Journal of Asian Finance, Economics and Business
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    • 제8권5호
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    • pp.375-380
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    • 2021
  • Internal control is important for monitoring operations of organizations. In order to achieve the quality of internal control, organizations need to recognize different perspectives in which the components of internal control play a decisive role. Internal control is a process designed by the manager and it is applied within the organization to provide reasonable assurance of the reliability of financial information and to comply with policies, procedures, rules, regulations and laws. The article uses the ordinary least squares method and the seven-point Likert scale to test the variables affecting the quality of internal control in 18 Vietnamese listed banks. The article surveyed 179 leaders of listed banks. The results show that there are three variables out of a total of five variables that positively affect the quality of internal control, including the control environment, control activities, and monitoring. Accordingly, the managers of Vietnamese listed banks need to pay attention to building a corporate culture environment, improve the quality of control activities, and periodically and regularly conduct the monitoring. It contributes to improving the quality of internal control and is also an opportunity to increase economic benefits for Vietnamese listed banks in the context of international economic integration.

한약재 품질관리실태에 대한 한방의료기관 종사자들의 인식도 (Recognition of Oriental Medical Doctors on the Quality Control of Herbal Medicine)

  • 김광수;유왕근
    • 대한예방한의학회지
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    • 제7권1호
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    • pp.87-102
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    • 2003
  • This study was conducted to examine recognition of oriental medical doctors on the quality control of herbal medicine and to provide useful information for the establishment of effective quality control system of herbal medicine. Data were collected from 202 oriental medical doctors working in oriental medical hospitals or clinics in Daegu-Gyungbuk province. Generally, there is a tendency that most respondents have low degree of recognition, trust and satisfaction of the quality control of herbal medicine while they think standardization and complete quality control systems of herbal medicine is needed highly. Thus, in order to increase confidence of consumers in herbal medicine, and to increase the utilization of oriental medical services, both strengthening of quality control systems and standardization and establishment of Oriental KFDA as a new government agency responsible for the work should be required.

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터빈/발전기 생산업체의 품질검사 관리시스템 개발 (Development of a Quality Inspection Control System for a Torbine/Generator Production Industry)

  • 박창권;박주영
    • 품질경영학회지
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    • 제28권1호
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    • pp.196-209
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    • 2000
  • In order to intensify an enterprise competition, quality inspection controls are very important issue. An organization or division of a company hopes which to acquire the quality inspection information be updated in real-time with respect to shop floor. In this paper, we develop a quality inspection control system for a Turbine/Generator production industry. The system compromises inspection scheduling module related to shop floor control (SFC) system, formal documentation control module, and formal inspection control module. In the quality inspection control system, ORACLE RDBMS is used for the database management system and ORACLE DEVELOPER 2000 is used for system development tool. The characteristic of this system is to support so it can enhance productivity and quality through inspection plans related to production scheduling.

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품질전략과 경영성과간의 관계에서 통제시스템의 매개효과 (The intermediate Effects of Control System on the Relationship between Quality Strategy and Performance)

  • 김달곤
    • 품질경영학회지
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    • 제30권3호
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    • pp.150-167
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    • 2002
  • Normative theory suggests that control systems should be designed to complement management's objectives and strategies. However, few empirical studies have focused on how control systems have been modified to complement new manufacturing techniques, such as zero-defect strategy. The major purpose of this study is to examine the effects of the attributes of quality strategy and control system on performance. The previous studies have subdivided quality strategy into the ECL(economic conformance level) and ZD(zero-defect) strategy. To accomplish the purpose, this study empirically analysed the data based on the questionnaires from manufacturing department personnel of 67 Korean companies. The major results are as follows. The companies that had implemented the ZD strategy and its control system outperformed the companies that had implemented ECL strategy. Also, the ZD strategy differs from ECL strategy in control system, the criteria of performance evaluation and feedback frequence variable. There is no difference in quality performance monitoring and communication variable. From this results, although many companies have strived for continuous improvement of quality, it was restricted in improvement activities that dont's required much investment cost, quality performance monitoring and communication.