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Journal articles on the topic 'Quality control methodology'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Hron, J., and T. Macák. "Control of food products’ quality." Agricultural Economics (Zemědělská ekonomika) 55, No. 5 (June 1, 2009): 221–28. http://dx.doi.org/10.17221/28/2009-agricecon.

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The paper deals with one of the significant parts of the concept related to controlling production quality, which is the analysis of production quality stability done for the following production procedure regulation aimed at the food manufacturing industry. The proposed methodology (respecting the change of location and variability of the food quality characteristics) will be introduced on the milk quality regulation. Also, there is the frequent problem solved out here in the report that relates to food quality measuring – their self-regulation by using the statistical calculation of self-regulation higher classes’ coefficients and also using the functional statement taken from the differential description.

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2

Aleynikov, A. A., K. Z. Bilyatdinov, and E. A. Krivchun. "MANAGEMENT TECHNICAL SUPPORT: METHODOLOGY OF QUALITY CONTROL." Scientific and Technical Volga region Bulletin 6, no. 6 (December 2016): 76–78. http://dx.doi.org/10.24153/2079-5920-2016-6-6-76-78.

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3

Michelet, F., D. Krueger, and N. Binkley. "Feasibility Study of Quality Control Methodology for TBS." Journal of Clinical Densitometry 21, no. 1 (January 2018): 30. http://dx.doi.org/10.1016/j.jocd.2017.10.030.

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4

Thompson, Michael, and Bertil Magnusson. "Methodology in internal quality control of chemical analysis." Accreditation and Quality Assurance 18, no. 4 (January 18, 2013): 271–78. http://dx.doi.org/10.1007/s00769-013-0955-1.

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5

Dessouky, M. I., S. G. Kapoor, and R. E. DeVor. "A Methodology for Integrated Quality Systems." Journal of Engineering for Industry 109, no. 3 (August 1, 1987): 241–47. http://dx.doi.org/10.1115/1.3187125.

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This paper proposes a methodology for the design of a system for planning and controlling the quality of products and processes. The system considers the relationships of quality-related parameters along the stages of a product life cycle. Parameters include material properties, process parameters, product quality characteristics, and product performance in use. The methodology is based on modeling the transformation taking place at every stage and on the design of quality control windows which perform all the functions of a control cycle. Several applications of the methodology are described.

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6

Polyakova, Marina, and Alexey Korchunov. "Methodology of Developing Mathematical Models for Quality Indices Control." Applied Mechanics and Materials 598 (July 2014): 643–46. http://dx.doi.org/10.4028/www.scientific.net/amm.598.643.

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It is proposed to set the structure of metal products quality as a hierarchical tree of properties. Input and output variables and also control parameters of technological processes are represented as universal multitudes in formalization of the process of production quality indices handling in hardware industry technologies. Presence of simultaneously diversified information initiating different types of independence, is characteristic of solving problems of metal products quality indices control.

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Remoundou, Konstantina, Theodoros Alexakis, Nikolaos Peppes, Konstantinos Demestichas, and Evgenia Adamopoulou. "A Quality Control Methodology for Heterogeneous Vehicular Data Streams." Sensors 22, no. 4 (February 18, 2022): 1550. http://dx.doi.org/10.3390/s22041550.

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The rapid evolution of sensors and communication technologies has led to the production and transfer of mass data streams from vehicles either inside their electronic units or to the outside world using the internet infrastructure. The “outside world”, in most cases, consists of third-party applications, such as fleet or traffic management control centers, which utilize vehicular data for reporting and monitoring functionalities. Such applications, in most cases, in order to facilitate their needs, require the exchange and processing of vast amounts of data which can be handled by the so-called Big Data technologies. The purpose of this study is to present a hybrid platform suitable for data collection, storing and analysis enhanced with quality control actions. In particular, the collected data contain various formats originating from different vehicle sensors and are stored in the aforementioned platform in a continuous way. The stored data in this platform must be checked in order to determine and validate them in terms of quality. To do so, certain actions, such as missing values checks, format checks, range checks, etc., must be carried out. The results of the quality control functions are presented herein, and useful conclusions are drawn in order to avoid possible data quality problems which may occur in further analysis and use of the data, e.g., for training of artificial intelligence models.

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Gusakov, V. N., A. V. Katermin, L. R. Mikhaylova, V. V. Gorbunov, and E. Yu Nevyadovskiy. "METHODOLOGY FOR QUALITY CONTROL AND APPLICATION OF OILFIELD CHEMICALS." Petroleum Engineering 19, no. 4 (September 2021): 81. http://dx.doi.org/10.17122/ngdelo-2021-4-81-89.

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9

Venancio Cruz, David, Manoel Rivelino Gomes de Oliveira, Moacyr Cunha Filho, and Darlan Venancio da Cruz. "Monitoring pH with quality control based on Geostatistics Methodology." IEEE Latin America Transactions 14, no. 12 (December 2016): 4787–91. http://dx.doi.org/10.1109/tla.2016.7817012.

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10

Kazmer, David O., and Sarah Westerdale. "A model-based methodology for on-line quality control." International Journal of Advanced Manufacturing Technology 42, no. 3-4 (July 3, 2008): 280–92. http://dx.doi.org/10.1007/s00170-008-1592-4.

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11

Abdelaziz, Hamdy Ahmed. "Quality Control of eLearning Research Design." International Journal of Technology Diffusion 9, no. 3 (July 2018): 46–67. http://dx.doi.org/10.4018/ijtd.2018070104.

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The present article aimed at developing a research methodology to ensure quality control of eLearning field research design and production. The idea of the present research was to investigate effective and ineffective practices in eLearning field. The analysis of a sample of researches and studies (n = 200), conducted in the field of eLearning and Blended Learning in the Arab states revealed that the vast majority of eLearning researches and studies (70%) were stereotypical. Therefore, the researcher developed a list of indicators that ensure quality control of eLearning researches design. A new methodology to design and produce eLearning research is proposed. The proposed methodology contains four stages: Identify Investigate, Prototype, and Produce. Implementation of these stages required the adoption of a tetrad dialogue during the course of answering the six patterns of question: what, who, when, where, how, and why. In addition, the adoption of this new method may support producing adaptive and innovative eLearning research with high level of quality.

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12

Yin Kwok, Ka, and V. M. Rao Tummala. "A quality control and improvement system based on the total control methodology (TCM)." International Journal of Quality & Reliability Management 15, no. 1 (February 1998): 13–48. http://dx.doi.org/10.1108/02656719810197288.

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13

Cardenas, Javier, Edwin Espinel, and Jhan Piero Rojas. "Failure Analysis Methodology in Industrial Control Valves Using Quality Function." International Review of Automatic Control (IREACO) 13, no. 6 (November 30, 2020): 273. http://dx.doi.org/10.15866/ireaco.v13i6.19331.

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14

Rosenwald, J. C. "Quality control of treatment planning systems: Proposal for a methodology." Radiotherapy and Oncology 37 (October 1995): S25. http://dx.doi.org/10.1016/0167-8140(96)80527-5.

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15

ISHIZU, SYOHEI. "A METHODOLOGY OF COORDINATION IN JAPANESE COMPANY-WIDE QUALITY CONTROL." International Journal of General Systems 14, no. 4 (November 1988): 317–30. http://dx.doi.org/10.1080/03081078808935021.

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16

Mozas, Antonio T., and Francisco J. Ariza. "Methodology for Positional Quality Control in Cartography Using Linear Features." Cartographic Journal 47, no. 4 (November 2010): 371–78. http://dx.doi.org/10.1179/000870410x12825500202931.

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17

Martynyuk, Valeriy, Manuel Ortigueira, Mykola Fedula, and Oleg Savenko. "Methodology of electrochemical capacitor quality control with fractional order model." AEU - International Journal of Electronics and Communications 91 (July 2018): 118–24. http://dx.doi.org/10.1016/j.aeue.2018.05.005.

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18

Lebediev, Oleh, and Valentyn Lebediev. "Analysis of risks methodology in information systems." Advanced Information Systems 5, no. 4 (December 20, 2021): 60–63. http://dx.doi.org/10.20998/2522-9052.2021.4.09.

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A method of risk analysis in information systems is being developed. The ways of ensuring the efficiency of control systems in the conditions of information confrontation with the use of the game theory apparatus are investigated. The desire to ensure high efficiency of modern management information systems, minimize financial costs, provide energy and information protection of the management system, highlights the creation of a system of analysis and risk management in information systems. It is assumed that the control system can implement the following behavioral strategies in a conflict situation: the control system does not change the algorithm, but changes the class of algorithms used to achieve the maximum value of the average quality by choosing the probability Pij for a given set of countermeasures, the control system changes the algorithm operation, the class of operating algorithms used to maximize the average quality of fixed countermeasures, the control system changes the operating algorithm and the class of operating algorithms used depending on the countermeasure strategy in order to achieve maximum quality. Using the apparatus of game theory, an analysis was performed and a method for estimating the average value of the quality of the communication system with different strategies of the conflicting parties was developed. The technique of estimation of average value of an indicator of quality of functioning of a control system is developed and expressions for an estimation of average value of an indicator at various strategies of behavior are received. It is shown that the solution to the problem of improving the quality of the control system is possible through the use of a mixed strategy of system behavior and the choice of structure and parameters of the control system that increase the partial quality of its operation.

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19

Tang, Xiaoqing, Meiqing Wang, and Shuchun Wang. "A systematic methodology for quality control in the product development process." International Journal of Production Research 45, no. 7 (April 2007): 1561–76. http://dx.doi.org/10.1080/00207540600942367.

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20

Hayashi, Toshihiro, and Takashi Owaki. "V. Quality Centered Methodology and Tools for Developing Computer Control Software." IEEJ Transactions on Electronics, Information and Systems 114, no. 6 (1994): 645–53. http://dx.doi.org/10.1541/ieejeiss1987.114.6_645.

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21

Zelikman, M. I., S. A. Kruchinin, and K. A. Snopova. "Methodology and Tools for Quality Control of Magnetic Resonance Imaging Devices." Biomedical Engineering 44, no. 5 (January 2011): 184–87. http://dx.doi.org/10.1007/s10527-011-9184-2.

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22

Khthir, MD, CPHQ, CCD, Rodhan. "Approaching Inpatient Glycemic Control Using Six Sigma Methodology." International Journal of Innovative Research in Medical Science 6, no. 04 (April 10, 2021): 288–91. http://dx.doi.org/10.23958/ijirms/vol06-i04/1105.

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Process variation affects almost all healthcare processes. Wide fluctuation of blood glucose values is very common in hospitalized patients and may impact the outcome of care in negative way. The purpose of this article is to illustrate how to study the process variation using Six Sigma approach and how to us it teaching healthcare quality.

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23

Ovchinnikova, Ol'ga, and Marina Grebneva. "Methodology for Evaluating the Enterprise's Internal Control System." Auditor 6, no. 5 (June 10, 2020): 3–7. http://dx.doi.org/10.12737/1998-0701-2020-3-7.

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The article discusses the goal of building an effective system of internal control, elements of the internal control system are structured, the list of sources of information base for the functioning of the internal control system is detailed, methods of quality assessment of the internal control system are selected, the stages of evaluation of the effectiveness of the internal control system of the enterprise are formulated.

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24

Cakmakci, Mehmet, Numan M. Durakbasa, Mahmut Kemal Karasu, Gokcen Bas, and Umut Gurel. "The Importance of Quality Control within the Relationship between the Quality Engineering and Taguchi Methodology." Key Engineering Materials 637 (February 2015): 27–35. http://dx.doi.org/10.4028/www.scientific.net/kem.637.27.

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Nowadays there is a strong relationship between the quality control and quality engineering in the modern advanced manufacturing. Quality engineering is an interdisciplinary science which is concerned with not only producing satisfactory products for customers but also reducing the total loss. Quality engineering involves engineering design, process operations, after-sales services, economics and statistics. Although the Taguchi Robust Design is the first concept comes to mind when thinking of quality engineering, the definition of this major has been used in different manners in the literature. There are also differences on the definition of the quality which has been made by experts. The aim of this study is to contribute to the literature to avoid deviations on definition of the concept of "Quality Engineering", which has not been defined yet by ISO - International Organization for Standardization. This study pointed out that the process of quality control is a part of on-line quality engineering rather than off-line phase and tries to ensure planned and/or improved values are satisfied during mass production.

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25

Komitov, Georgi, Violeta Rasheva, and Ivan Binev. "Methodology for quickly determining the quality of pellets." SIMI 2019, SIMI 2019 (September 20, 2019): 207–14. http://dx.doi.org/10.21698/simi.2019.fp27.

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A methodology for quickly and easy determination the quality of pellets offered on the market is developed on the basis of "theory of graphs". The pellet quality assessment is performed in two ways - by direct control (non-destructive measurements) and by combustion. The following pellets parameters are determined at the direct control stage: friability, homogeneity, presence of dark stains and moisture content. The experimental measurement of following parameters of the combustion process is carried out at the stage of pellet burning assessment under real conditions: temperature in the combustion chamber, time for complete combustion of the pellets and the amount of ash after pellets combustion. The calorific value of the tested pellets is determined on the basis of the experimentally obtained parameters of the combustion process. The the obtained parameters values are statistically processed according to the described in the paper equations at the next stage. Then the results for the investigated pellet parameters are compared with the normative values. The proposed methodology could be calibrated by experimental determining the calorific value of investigated pellets by a calorimeter. Practical application of this methodology is that by not so complicated measurements and calculations the required amount of pellets for heating a building with a certain energy consumption for heating season could be determined.

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26

Riley, Jenn, and Kurt Whitsel. "Practical quality control procedures for digital imaging projects." OCLC Systems & Services: International digital library perspectives 21, no. 1 (March 1, 2005): 40–48. http://dx.doi.org/10.1108/10650750510578145.

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PurposeFormal quality review processes are a necessary part of any digital imaging workflow. This article illustrates a set of quality review processes implemented in the Indiana University Digital Library Program's Digital Media and Image Center.Design/methodology/approachA methodology for automatic batch review of large numbers of images is presented, along with rationale and procedures for supplemental visual review. The initial stages of an effort to further automate and centralize image quality control at Indiana University are described.FindingsAutomation of checks for objective image criteria, together with formal visual review of a sample of digitized images, is an effective means of implementing a quality review process.Originality/valueThe methodologies described can be used as a model for other institutions performing digital imaging projects of any size.

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27

Nwokah, Osita D. I., Gemunu S. Happawana, and Dare´ Afolabi. "The Design of Quality Engineered Control Systems." Journal of Dynamic Systems, Measurement, and Control 121, no. 4 (December 1, 1999): 583–93. http://dx.doi.org/10.1115/1.2802520.

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Every optimization based engineering design produces a performance metric which as a function of the tolerance parameters, is structurally stable but not generic. This can lead to a severe loss of performance (catastrophes) under a smooth change in the tolerance parameters. This paper gives an exposition of how norm based optimal control methods naturally lead to performance catastrophes, as well as an alternative systematic loop shaping design methodology which corrects the problem.

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28

Skrzypczak, Izabela. "Statistical Quality Inspection Methodology in Production of Precast Concrete Elements." Materials 16, no. 1 (January 2, 2023): 431. http://dx.doi.org/10.3390/ma16010431.

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Today, prefabricated concrete elements are used in many construction areas, including in industrial, public, and residential construction; this was confirmed via questionnaire research. In the article, the prospects for precast concrete development are presented, and the factors determining the use of this technology are defined. Based on a review of the literature, it was shown that currently, higher-quality prefabricated elements are primarily created through the implementation of innovative materials and production technologies. For this reason, the lack of research regarding quality control in prefabricated elements based on statistical quality control is particularly noticeable. The quality control process is one of the most important distinguishing features in prefabrication due to the increasingly stringent expectations of customers; it helps to ensure that the desired durability of implemented constructions is achieved. Issues related to assessing the effectiveness of standard procedures presented in this paper were analyzed using statistical methods in the form of OC (operating characteristic) and AOQ (average outgoing quality) curves. Thus, a new approach was proposed because these methods have not been previously used in precast concrete. The shape of the curves obtained confirmed the significant dependence of the value of the acceptance probability on the defectiveness of production. In AQL control systems based on OC and AOQ curves, it is necessary to calculate the current average defectiveness, which should be treated as a basis for the decision to switch from one type of control (normal, tightened, or reduced) to another. In this respect, the standard requirements of quality control have been simplified, and it has not been considered necessary to determine the average defectiveness value in production processes. The examples included in this study, including the analysis of curb production data, clearly show the harmful effects of ignoring the actual process defectiveness. As a result of the calculations, it was found that the average actual defectiveness of the curbs produced could not be equated with batch defectiveness. The analyses carried out in this study prove that equating batch defectiveness with process defectiveness is not an appropriate approach, which was confirmed through the producer’s/customer’s risk analysis. The approach proposed in this study, the analysis of OC and AOQ curves, is an innovative solution in prefabrication and can be an effective tool for managing the quality of prefabricated products, taking into account economic boundary conditions.

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Mora, Patricia, Douglas Pfeiffer, Gouzhi Zhang, Hilde Bosmans, Harry Delis, Zahra Razi, Manuel Arreola, and Virginia Tsapaki. "The IAEA remote and automated quality control methodology for radiography and mammography." Journal of Applied Clinical Medical Physics 22, no. 11 (October 8, 2021): 126–42. http://dx.doi.org/10.1002/acm2.13431.

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30

Andrade, Cleyton Lage, Miguel Angel De La O. Herrera, and Elezer Monte Blanco Lemes. "A Model of Risk Analysis in Analytical Methodology for Biopharmaceutical Quality Control." PDA Journal of Pharmaceutical Science and Technology 72, no. 3 (2018): 317–31. http://dx.doi.org/10.5731/pdajpst.2016.007286.

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31

HOSHINO, Satoshi, and Kota ASANO. "A Study on Applicability of 'Total Quality Control, Methodology to Participatory Planning." JOURNAL OF RURAL PLANNING ASSOCIATION 11, no. 1 (1992): 50–59. http://dx.doi.org/10.2750/arp.11.50.

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32

Herreros-Chavez, L., A. Morales-Rubio, and M. L. Cervera. "Green methodology for quality control of elemental content of infant milk powder." LWT 111 (August 2019): 484–89. http://dx.doi.org/10.1016/j.lwt.2019.05.055.

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33

Dall’Ara, Alice, Alessandra Bonoli, Silvia Serranti, Emiliano Burresi, and Lenuta Stroea. "Control methodology for biomasses quality: A case study for biotreated poultry manure." Journal of Biotechnology 150 (November 2010): 198. http://dx.doi.org/10.1016/j.jbiotec.2010.08.513.

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Dou, Lin, Jia-Ning Zeng, Dante D. Gerochi, Michael P. Duda, and Hans H. Stuting. "Chiral high-performance liquid chromatography methodology for quality control monitoring of dexfenfluramine." Journal of Chromatography A 679, no. 2 (September 1994): 367–74. http://dx.doi.org/10.1016/0021-9673(94)80580-6.

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35

Mao, Fei Long, Hai Guang Zhang, and Qing Xi Hu. "Methodology of Uniform Filling Control for Vacuum Casting." Key Engineering Materials 705 (August 2016): 245–49. http://dx.doi.org/10.4028/www.scientific.net/kem.705.245.

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Aiming at solving the problem that results from flow instability two-component materials, uneven density and thus affects the product quality in constant pressure casting stage. Based for theory of polymer materials and hydrodynamic, establishing mathematic model of filling stage and proposing a uniform filling strategy through analysis of geometric characteristics of different mold, set pressure regulation curve in order to ensure uniform filling and stable flow for two-component materials in pressure casting stage. The experiment shows that the proposed method can actually ensure uniform filling, but also eliminate the product defects such as insufficient injection and burr, thus presenting a feasible solution to the problem of flow instability two-component materials and uneven density.

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Veselovska, Natalia. "PRACTICAL REALIZATION OF METHODOLOGY OF PROCESS CONTROL OF TOOLING." ENGINEERING, ENERGY, TRANSPORT AIC, no. 1(108) (August 27, 2020): 91–102. http://dx.doi.org/10.37128/2520-6168-2020-1-11.

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The problem of providing of necessary quality and exploitation of properties of details of machines acquires an all more important value in an engineer. However to present tense the not worked out is generalized theoretical dependences between the parameters of quality of surface, exactness of treatment, operating properties of details and parameters of processes of tooling, that allow to decide the task of the technological providing of the set operating properties of details. Process control of forming of surface with necessary properties comes true mainly by the use of partial experimental dependences and tables of the modes of treatment. Complication of problem consists in that at treatment of details it is necessary to set such terms of treatment, that would provide the complex of requirements in relation to the wear of instrument, exactness of treatment, to descriptions of quality of surface, productivity and others like that. The areas of the most effective use of the productive systems are foremost determined by a technological equipment that is component part by the nomenclature of workparts and CAS of management. Experience of development and exploitation of mechanisms of parallel kinematics confirms them high efficiency and perspective of this direction of engineer. As a result of structural features of arrangement, the mechanisms of parallel kinematics have the reserved kinematics chains that form spatial structures. As a rule these structures are founded on the base of the three-cornered cored systems. They have high rigid descriptions, provide high-rate and accelerations of working organs. Accordingly given an opportunities it is allowed by substantial character to promote static and dynamic exactness of positioning of mechanisms. Wide introduction of mechanisms of parallel kinematics absence of theoretical bases of development of mechanisms interferes with, in particular mechanisms of an increase exactness. The increase of exactness needs complex research of kinematics and working processes that take place in their basic knots. Therefore researches are sent to the increase of parameters of static and dynamic exactness of spatial mechanisms of parallel kinematics is actual.

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Wang, Y., A. Loboda, M. Chitsaz, and S. Ganesan. "Histology Slide Quality Improvement Project Utilizing DMAIC principle of Six Sigma Quality Improvement Methodology." American Journal of Clinical Pathology 156, Supplement_1 (October 1, 2021): S111—S112. http://dx.doi.org/10.1093/ajcp/aqab191.237.

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Abstract Introduction/Objective DMAIC (an acronym for Define, Measure, Analyze, Improve and Control) refers to a data- driven improvement cycle used for improving, optimizing, and stabilizing business processes and designs. Our goal was to utilize DMAIC principle of six sigma quality to improve histology slide quality. Methods/Case Report We “defined” the problem as suboptimal quality in endometrial biopsy slides (defects). Utilizing the DMAIC principle and adhering to a strict timeline, the defects found during baseline slide quality review were “measured” by linking the defects to specific histology competencies, which were addressed systematically for process improvement (PI). After PI, a follow up review (“improve” and “control” phases) was carried out to identify measurable outcomes as a testament to quality. Results (if a Case Study enter NA) During the problem “measurement” phase, the defects found in the baseline review of 175 slides were linked to four specific histology competencies (fixation, embedding, cutting, and staining). Processing was excluded as it is completely automated and standardized. Our analysis showed that 83.3 % of defects were linked to embedding (“tissue too dispersed”). As embedding competency depends on the size and nature of the tissue (e.g. mucus and blood admixed with tissue), grossing competency was also addressed along with embedding at the respective workstations. Recommendations were offered to the grosser, embedder, and cutter to reduce variables during the “improvement” phase. Follow up review was done on 196 slides. The number of defective slides decreased and the defects that linked to “tissue too dispersed” had an overall improvement of 91.3%. Once the PI is proven to be effective, in service to histotechnology personnel biannually were also offered during “control” phase. Conclusion We have demonstrated successful methods for improving histology slide quality utilizing DMAIC principle of quality improvement by six sigma methodology DMAIC principle can be creatively adapted in laboratory practice management to enhance quality.

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Korobov, Nikolay A., Natal’ya A. Gruzintseva, Marina A. Lysova, and Boris N. Gusev. "BUILDING A DIGITAL RESEARCH METHODOLOGY IRREGULARITIES IN THE SURFACE DENSITY OF NONWOVENS." Technologies & Quality 52, no. 2 (July 2, 2021): 5–10. http://dx.doi.org/10.34216/2587-6147-2021-2-52-5-10.

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Ensuring the required level of quality of products produced by textile enterprises involves not only the final (output) control of its quality indicators, but also ensuring operational control over the relevant characteristics of raw materials and semi-finished products in technological processes throughout the entire production chain of textile material. Within the framework of the functioning of the quality management system of a textile enterprise, when conducting operational monitoring of technological processes, appropriate automated technical controls are required, built with the use of modern information technologies. In this paper, in order to assess the quality of the carding process in the production of combed or carded yarn, a method is proposed for the digital study of the structural unevenness in the surface density of this type of non-woven material, based on the principle of determining the sectorial and radial characteristics for this quality indicator.

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39

Margari, Niki, Abraham Pouliakis, Stavros Archondakis, Magdalini Stamataki, Dionysios Aninos, Charalampos Chrelias, Asimakis Pappas, Ioannis Panayiotides, and Petros Karakitsos. "A Quality Control Study of Liquid-Based Cytology Test Papanicolaou." International Journal of Reliable and Quality E-Healthcare 3, no. 3 (July 2014): 1–21. http://dx.doi.org/10.4018/ijrqeh.2014070101.

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During the last decade, there is a stringent and ongoing requirement by regulatory bodies, and often enforced by law, for the implementation of measures increasing the confidence of cytological laboratories (expressed as requirement for accreditation via ISO 15189 or 17025). In this study, we present a quality control and assurance (QC&QA) method and results based on Cytology-Histology (C-H) and Cytology-Cytology (C-C) comparisons, on the basis of real data related to cervical cancer. The proposed QC&QA methodology allows the assessment of laboratory performance over time and the assessment of the laboratory as a facility and individual personnel as well. Moreover, we propose a high-level design for a Laboratory Information System capable of supporting the proposed methodology. The usual methodology to regularly control laboratory performance (once or twice per year), is not nowadays efficient, LIS implementation following the proposed scheme can support instant QC&QA, thus ensuring laboratories confidence and timely initiation of corrective actions.

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40

Dooley, K. J., S. G. Kapoor, M. I. Dessouky, and R. E. DeVor. "An Integrated Quality Systems Approach to Quality and Productivity Improvement in Continuous Manufacturing Processes." Journal of Engineering for Industry 108, no. 4 (November 1, 1986): 322–27. http://dx.doi.org/10.1115/1.3187083.

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An integrated quality systems methodology is presented as a framework within which the concepts of process control can be used to improve quality and productivity. The process is mathematically described by stochastic time series models which statistically describe how inputs and outputs interact. Several different methods for fault identification, including autocorrelation checks of the model residuals, forecasting prediction intervals, and the cusum chart are compared in terms of relative performance. A helix cable manufacturing process is simulated and analyzed by the methodology and faults are identified and suggestions are made for process improvement. Through the simulation these time series control chart methods are shown to be much more effective than conventional methods such as Shewhart control charts.

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Li, Yanfei, Zheng D. O'Neill, and Xiaohui Zhou. "Development of control quality factor for HVAC control loop performance assessment I—Methodology (ASHRAE RP-1587)." Science and Technology for the Built Environment 25, no. 5 (January 30, 2019): 656–73. http://dx.doi.org/10.1080/23744731.2018.1556055.

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Cheng, Jin, Jian Rong Tan, and Jia Hong Yu. "Process Control of Injection Molding Based on Multiscale Visualization Methodology - A Case Study." Advanced Materials Research 154-155 (October 2010): 1839–45. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.1839.

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Multiscale visualization approaches are proposed to efficiently assist designers not familiar with statistical mathematics in determining the optimal process parameter schemes for achieving desired part quality in injection molding, based on which the parameters’ relative importance to part quality and their influence on either single quality index or comprehensive part quality can be visually described by the map of the sum of squared deviations, response surface diagram and distribution map of comprehensive part quality. The proposed visualization approaches are universal for analyzing the effects of process parameters on the quality of any injection-molded plastic parts although the mobile phone cover is utilized as an example in the presentation of our work.

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Korchunov, Alexey, Mikhail Chukin, and Aleksandr Lysenin. "Methodology of Developing Mathematical Models with Fuzzy Logic Elements for Quality Indices Control." Applied Mechanics and Materials 436 (October 2013): 374–81. http://dx.doi.org/10.4028/www.scientific.net/amm.436.374.

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Advantages of applying fuzzy logic theory to metal products quality indices control in development of new models and in improvement of acting process operations are shown. It is proved that it is appropriate to determine fuzzy relation as preference relation in process of handling products quality indices in process operations. Elaboration of algorithm of handling mathematical models with fuzzy logic elements to control quality indices is undertaken. Methodology of mathematical models development with fuzzy logic elements for metal products quality indices control is created. Process of metal products quality indices control on the basis of models with fuzzy logic elements is illustrated.

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Garcia-Torres, Felix, Sergio Vazquez, Isabel M. Moreno-Garcia, Aurora Gil-de-Castro, Pedro Roncero-Sanchez, and Antonio Moreno-Munoz. "Microgrids Power Quality Enhancement Using Model Predictive Control." Electronics 10, no. 3 (February 1, 2021): 328. http://dx.doi.org/10.3390/electronics10030328.

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In electric power systems, any deviation with respect to the theoretical sinusoidal waveform is considered to be a disturbance in the power quality of the electrical grid. The deviation can alter any of the parameters of the waveform: frequency, amplitude, and symmetry among phases. Microgrid, as a part of the electric power system, has to contribute providing an adequate current waveform in grid connected-mode, as well as to guarantee similar voltage features than the standard requirement given for public distribution grids under normal exploitation conditions in islanded mode. Adequate power quality supply is necessary for the correct compatibility between all the devices connected to the same grid. In this paper, the power quality of microgrids is managed using a Model Predictive Control (MPC) methodology which regulates the power converters of the microgrids in order to achieve the requirements. The control algorithm is developed for the following microgrids working modes: grid-connected, islanded, and interconnected. The simulation results demonstrate that the proposed methodology improves the transient response in comparison with classical methods in all the working modes, minimizing the harmonic content in the current and the voltage even with the presence of non-balanced and non-harmonic-free three-phase voltage and current systems.

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Carnevale, Claudio, Elena De Angelis, Franco Luis Tagliani, Enrico Turrini, and Marialuisa Volta. "A Short-Term Air Quality Control for PM10 Levels." Electronics 9, no. 9 (September 1, 2020): 1409. http://dx.doi.org/10.3390/electronics9091409.

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In this work, the implementation and test of an integrated assessment model (IAM) to aid governments to define their short term plans (STP) is presented. The methodology is based on a receding horizon approach where the forecasting model gives information about a selected air quality index up to 3 days in advance once the emission of the involved pollutants (control variable) are known. The methodology is fully general with respect to the model used for the forecast and the air quality index; nevertheless, the selection of these models must take into account the peculiarities of the pollutants to be controlled. This system has been tested for particulate matter (PM10) control over a domain located in Northern Italy including the highly polluted area of Brescia. The results show that the control system can be a valuable asset to aid local authorities in the selection of suitable air quality plans.

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Karlov, Sergey, Victor Sulzhenko, and Aleksander Yakovlev. "Acoustic emission-based welding quality control of marine technology." Transactions of the Krylov State Research Centre, SPECIAL ISSUE 1 (April 16, 2019): 130–36. http://dx.doi.org/10.24937/2542-2324-2019-1-s-i-130-136.

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This paper discusses the potential of acoustic emission-based methods in technical condition assessment of marine technology, including methodology and results of marine pipeline checks during pneumatic tests and welding quality control of hull structures directly in the process of their manufacturing.

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Mora, Rocio, Jose Antonio Martín-Jiménez, Susana Lagüela, and Diego González-Aguilera. "Automatic Point-Cloud Registration for Quality Control in Building Works." Applied Sciences 11, no. 4 (February 5, 2021): 1465. http://dx.doi.org/10.3390/app11041465.

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Total and automatic digitalization of indoor spaces in 3D implies a great advance in building maintenance and construction tasks, which currently require visits and manual works. Terrestrial laser scanners (TLS) have been widely used for these tasks, although the acquisition methodology with TLS systems is time consuming, and each point cloud is acquired in a different coordinate system, so the user has to post-process the data to clean and get a unique point cloud of the whole scenario. This paper presents a solution for the automatic data acquisition and registration of point clouds from indoor scenes, designed for point clouds acquired with a terrestrial laser scanner (TLS) mounted on an unmanned ground vehicle (UGV). The methodology developed allows the generation of one complete dense 3D point cloud consisting of the acquired point clouds registered in the same coordinate system, reaching an accuracy below 1 cm in section dimensions and below 1.5 cm in walls thickness, which makes it valid for quality control in building works. Two different study cases corresponding to building works were chosen for the validation of the method, showing the applicability of the methodology developed for tasks related to the control of the evolution of the construction.

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Gonzales Chavesta, Celso, Verónica Pacheco, and Manuel Ballena G. "Aplicación de la metodología no paramétrica Bootstrap en el control de calidad del proceso de envasado del café." Campus 25, no. 30 (October 28, 2020): 351–59. http://dx.doi.org/10.24265/campus.2020.v25n30.11.

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Alberts, Karl Akke, Ian Goldie, David Edler, and Leif Svanstrom. "Injury Surveillance at Emergency Departments in an Urban Area. Methodology and Quality Control." Scandinavian Journal of Primary Health Care 9, no. 4 (January 1991): 239–43. http://dx.doi.org/10.3109/02813439109018526.

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Monday, Lea M. "Define, Measure, Analyze, Improve, Control (DMAIC) Methodology as a Roadmap in Quality Improvement." Global Journal on Quality and Safety in Healthcare 5, no. 2 (May 1, 2022): 44–46. http://dx.doi.org/10.36401/jqsh-22-x2.

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