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Tesis sobre el tema "Quality control"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Jin, Ye. "Quality control of phytopharmaceuticals : assessment and quality control of traditional Chinese medicine." Thesis, Liverpool John Moores University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327675.

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2

Bush, Helen Meyers. "Nonparametric multivariate quality control." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/25571.

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3

PICCOLI, FLAVIO. "Visual Anomaly Detection For Automatic Quality Control." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2019. http://hdl.handle.net/10281/241219.

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Il controllo di qualità automatico nei processi di produzione è uno degli elementi chiave della quarta rivoluzione industriale che porterà alla creazione della cosiddetta industria 4.0. In questo contesto, un elemento fondamentale è il rilievo di difetti, anomalie o guasti del prodotto in tempo compatibile con quello di produzione. Questa tesi si focalizza esattamente su questo tema: il rilevamento delle anomalie per il controllo automatico di qualità, attraverso l'analisi di immagini raffiguranti il prodotto sotto ispezione. Questa analisi verrà fatta tramite l'utilizzo di tecniche di machine

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4

Sepúlveda, Ariel. "The Minimax control chart for multivariate quality control." Diss., Virginia Tech, 1996. http://hdl.handle.net/10919/30230.

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5

Kenerson, Jonathan E. "Quality Assurance and Quality Control Methods for Resin Infusion." Fogler Library, University of Maine, 2010. http://www.library.umaine.edu/theses/pdf/KenersonJE2010.pdf.

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6

Crossman, S. H. "Quality control in developing epithelia." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10044689/.

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In the fruit-fly Drosophila melanogaster, extensive apoptosis is observed throughout the embryonic epidermis upon the mutation of many essential patterning genes. The molecular basis of cell elimination in this context is poorly understood, although previous studies have suggested the existence of a cell-autonomous quality control mechanism, which detects cells unable to adopt an appropriate terminal fate and removes them through apoptosis. This hypothetical system is thought to protect against patterning errors in order to preserve the integrity of the developing epidermis. To identify factor

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7

Lennard, Nicola S. "Quality control for carotid endarterectomy." Thesis, University of Leicester, 2004. http://hdl.handle.net/2381/29469.

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The aims of this study are to assess whether the introduction of a rigorous quality control method could produce a sustained reduction in the intraoperative stroke rate in this unit and whether it was feasible and practical to implement such a programme. The second part of this study will assess the incidence of sustained embolisation in the early post-operative period and investigate whether the antiplatelet agent Dextran 40 can help stop this embolisation, potentially preventing carotid artery thrombosis.;A prospective audit of all patients undergoing carotid endarterectomy was performed. Th

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8

Hughes, Anthony. "Quality control in radionuclide imaging." Thesis, University of Aberdeen, 1990. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU601994.

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9

Gordon, Kara Leigh. "TorsinA and protein quality control." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/2708.

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DYT1 dystonia (DYT1) is a disabling inherited neurological disorder with juvenile onset. The genetic mutation in DYT1 leads to the deletion of a glutamic acid (E) residue in the protein torsinA. The function of torsinA and how the mutation leads to DYT1 is poorly understood. We hypothesize that how efficiently the disease-linked mutant protein is cleared may be critical for DYT1 pathogenesis. Therefore we explored mechanisms of torsinA catabolism, employing biochemical, cellular, and animal-based approaches. We asked if torsinA(wt) and torsinA(DE) are degraded preferentially through different

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10

Cassady, Charles Richard. "Statistical quality control techniques using multilevel discrete product quality measures." Diss., This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-06062008-151120/.

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11

Wändell, Johan. "Multistage gearboxes : vibration based quality control." Licentiate thesis, KTH, Aeronautical and Vehicle Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3987.

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<p>In this thesis, vibration based techniques for detection of localised surface damages in multistage gearboxes are presented and evaluated.</p><p>A modern vehicle gearbox is a complex system and the number of potential errors is large. For instance, surface damages can be caused by rough handling during assembly. Large savings can be made in the production industry by assuring the quality of products such as gearboxes. An automated quality test as a final step in the production line is one way to achieve this.</p><p>A brief review of available methods for vibration based condition monitoring

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12

Moffitt, Richard Austin. "Quality control for translational biomedical informatics." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/34721.

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Translational biomedical informatics is the application of computational methods to facilitate the translation of basic biomedical science to clinical relevance. An example of this is the multi-step process in which large-scale microarray-based discovery experiments are refined into reliable clinical tests. Unfortunately, the quality of microarray data is a major issue that must be addressed before microarrays can reach their full potential as a clinical molecular profiling tool for personalized and predictive medicine. A new methodology, titled caCORRECT, has been developed to replace or augm

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13

Ghoudi, Kilani. "Multivariate non-parametric quality control statistics." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5658.

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During the startup phase of a production process while statistics on the product quality are being collected it is useful to establish that the process is under control. Small samples $\{ n\sb{i}\} \sbsp{i=1}{q}$ are taken periodically for $q$ periods. We shall assume each measurement is bivariate. A process is under control or on-target if all the observations are deemed to be independent and identically distributed and moreover the distribution of each observation is a product distribution. This would be the case if each coordinate of an observation is a nominal value plus noise. Let $F\sp{i

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14

Wändell, Johan. "Multistage gearboxes : vibration based quality control /." Stockholm : Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3987.

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15

Smith, Kaleigh. "Towards quality control in DNA microarrays." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79129.

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We present a framework for detecting degenerate probes in a DNA microarray that may add to measurement error in hybridization experiments. We consider four types of behaviour: secondary structure formation, self-dimerization, cross-hybridization and dimerization. The framework uses a well-established model of nucleic acid sequence hybridization and a novel method for the detection of patterns in hybridization experiment data. Our primary result is the identification of unique patterns in hybridization experiment data that are correlated with each type of degenerate probe behaviour. The

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16

Ng, Gary K. L. "Quality control in laser percussion drilling." Thesis, University of Manchester, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488033.

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17

Wort, Ralph George. "Integrated information system for quality control." Thesis, University of the West of England, Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283909.

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18

Mehenni, B. "Fast visual inspection for quality control." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328421.

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19

Robinson, David Charles. "Computer based on-line quality control." Thesis, University of Portsmouth, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292316.

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20

Safronova, D. "Biological method for water quality control." Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/26726.

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Problem Saint-Petersburg is located at the Neva river and almost all drinking water for 5 million inhabitants is taken from it. Talking about water supply centralised source for Saint-Petersburg, one can mark a lot of negative factors influencing the water quality. Surely, agricultural pollution, transport and economical problems are among them. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/26726

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21

Tshenye, Thapelo Obed. "Quality control of astronomical CCD observations." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/4409.

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22

Alexander, Adam Ross Washer Glenn A. "Guideline for implementing quality control and quality assurance for bridge inspection." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6560.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on October 13, 2009). Thesis advisor: Dr. Glenn Washer. Includes bibliographical references.

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23

Reque, Calisaya Ramiro Benjamin. "Total quality control - TQC: controle total de qualidade na area de serviços." reponame:Repositório Institucional do FGV, 1993. http://hdl.handle.net/10438/4665.

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Made available in DSpace on 2010-04-20T20:14:32Z (GMT). No. of bitstreams: 0 Previous issue date: 1993-11-05T00:00:00Z<br>Trata-se de uma análise teórica sobre os conceitos modernos de comtrole de qualidade - CQ, refletidos no TOTAL QUALITY CONTROL - TQC - Controle Total de Qualidade, aplicados às áreas de serviços das empresas industriais e às empresas fornecedoras de serviços.

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24

Banús, Paradell Núria. "New solutions to control robotic environments: quality control in food packaging." Doctoral thesis, Universitat de Girona, 2021. http://hdl.handle.net/10803/673469.

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Machine vision systems and artificial intelligence techniques are two active research areas in the context of Industry 4.0. Their combination allows the reproduction of human procedures while improving the performance of the processes. However, to achieve the desired full automation, there is a need for new applications able to cover as many industrial scenarios and processes as possible. One of the areas that needs further research and development is the quality control of food packaging, and more specifically in the closure and sealing control of thermoforming packages. The shortcoming

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25

Bae, Suk Joo. "Analysis of dynamic robust design experiment and modeling approach for degradation testing." Diss., Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04052004-180010/unrestricted/bae%5Fsuk%5Fj%5F2003%5Fphd.pdf.

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26

Abrahamsson, Petter. "User Interface Design for Quality Control : Development of a user interface for quality control of industrial manufactured parts." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79724.

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The expected quality on manufactured components in the automotive industry is high, often with an accuracy of tenths of a millimeter. The conventional methods used to ensure the manufactured components are very accurate, but they are both time consuming and insufficient and only a small part of the produced series are analyzed today. The measurement is performed manually in so-called measurement fixtures. Where each component is fixed and predetermined points of investigation are controlled with a dial indicator. These fixtures are very expensive to manufacture and they are only compatible wit

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27

Wad, Charudatta V. "QoS : quality driven data abstraction for large databases." Worcester, Mass. : Worcester Polytechnic Institute, 2008. http://www.wpi.edu/Pubs/ETD/Available/etd-020508-151213/.

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28

McCaskey, Suzanne D. "Robust design of dynamic systems." Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/24223.

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29

Awwad, Tarek. "Context-aware worker selection for efficient quality control in crowdsourcing." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI099/document.

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Le crowdsourcing est une technique qui permet de recueillir une large quantité de données d'une manière rapide et peu onéreuse. Néanmoins, La disparité comportementale et de performances des "workers" d’une part et la variété en termes de contenu et de présentation des tâches par ailleurs influent considérablement sur la qualité des contributions recueillies. Par conséquent, garder leur légitimité impose aux plateformes de crowdsourcing de se doter de mécanismes permettant l’obtention de réponses fiables et de qualité dans un délai et avec un budget optimisé. Dans cette thèse, nous proposons C

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30

Clarke-Pringle, Tracy Lee. "Product quality control in reduced dimension spaces." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0034/NQ66260.pdf.

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31

Matos, Cristina Filipa Rodrigues de Oliveira. "Tat-mediated quality control in Escherichia coli." Thesis, University of Warwick, 2010. http://wrap.warwick.ac.uk/3769/.

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The E. coli Twin-arginine translocation (Tat) pathway transports a subset of proteins from the cytosol, across the inner membrane to the periplasmic space. One of the unique features of this pathway is its ability to transport fully folded passenger proteins. These passenger proteins often contain redox co-factors such as the iron-sulphur (FeS) proteins. This feature of the pathway suggests that any quality control of passenger proteins must occur prior to export. In this study the question of Tat pathway quality control is addressed. Initial studies (Chapter 3) addressed the degree to which t

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32

Ratnam, Edward. "Indoor air quality simulation and feedback control." Thesis, Glasgow Caledonian University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388935.

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33

Nuttall, James. "Protein quality control mechanisms in plant cells." Thesis, University of Warwick, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399507.

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34

Watts, Kate. "A study of quality control during galvannealing." Thesis, Swansea University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307558.

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35

Heath, Michael Lindsey. "Quality control improvement in global apparel sourcing." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104309.

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Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, 2016. In conjunction with the Leaders for Global Operations Program at MIT.<br>Thesis: S.M. in Engineering Systems, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016. In conjunction with the Leaders for Global Operations Program at MIT.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 49-50).<br>This project addressed challenges within the quality management process of one of the operating groups of Li & Fung. The primary goals were improved p

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36

Karamancı, Kaan. "Exploratory data analysis for preemptive quality control." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/53126.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.<br>Includes bibliographical references (p. 113).<br>In this thesis, I proposed and implemented a methodology to perform preemptive quality control on low-tech industrial processes with abundant process data. This involves a 4 stage process which includes understanding the process, interpreting and linking the available process parameter and quality control data, developing an exploratory data toolset and presenting the findings in a visual and easily implementable fashion. In pa

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37

Thoutou, Sayi Mbani. "Quality control charts under random fuzzy measurements." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/19140.

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Includes bibliographical references. .<br>We consider statistical process control charts as tools that statistical process control utilizes for monitoring changes; identifying process variations and their causes in industrial processes (manufacturing processes) and which help manufacturers to take the appropriate action, rectify problems or improve manufacturing processes so as to produce good quality products. As an essential tool, researchers have always paid attention to the development of process control charts. Also, the sample sizes required for establishing control charts are often unde

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38

Kim, Sang Ik. "Contributions to experimental design for quality control." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53551.

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A parameter design introduced by Taguchi provides a new quality control method which can reduce cost-effectively the product variation due to various uncontrollable noise factors such as product deterioration, manufacturing imperfections, and environmental factors under which a product is actually used. This experimental design technique identifies the optimal setting of the control factors which is least sensitive to the noise factors. Taguchi’s method utilizes orthogonal arrays which allow the investigation of main effects only, under the assumption that interaction effects are negligible.

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39

Yang, Yi. "Injection molding control : from process to quality /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CENG%202004%20YANG.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 218-244). Also available in electronic version. Access restricted to campus users.

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40

Wang, Wei. "WebRTC Quality Control in Contextual Communication Systems." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232704.

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Audio and video communication is a universal task with a long history of technologies. Recent examples of these technologies include Skype video calling, Apple’s Face Time, and Google Hangouts. Today, these services offer everyday users the ability to have an interactive conference with both audio and video streams. However, many of these solutions depend on extra plugins or applications installing on the user’s personal computer or mobile device. Some of them also are subject to licensing, introducing a huge barrier for developers and restraining new companies from entering this area. The aim

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41

He, Baosheng. "New Bayesian methods for quality control applications." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6133.

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In quality control applications, the most basic tasks are monitoring and fault diagnosis. Monitoring results determines if diagnosis is required, and conversely, diagnostic results aids better monitoring design. Quality monitoring and fault diagnosis are closely related but also have significant difference. Essentially. monitoring focus on online changepoint detection, whilst the primary objective of diagnosis is to identify fault root causes as an offline method. Several critical problems arise in

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42

Sasset, Linda. "Protein quality control: from ribosome to proteasome." Doctoral thesis, Università degli studi di Trieste, 2014. http://hdl.handle.net/10077/10118.

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2012/2013<br>Il peptide 2A è un peptide virale di 18-23 aminoacidi presente in alcuni picornavirus, dei virus a RNA che codificano per una poliproteina che viene poi processata per produrre tutte le proteine virali. Il peptide 2A, in particolare, permette la divisione tra le proteine capsidiche e quelle replicative. Durante la traduzione il peptide 2A agisce come elemento autonomo, in grado di mediare il suo processamento al C-terminale: per farlo modifica l'attività del ribosoma, promuovendo l'idrolisi del legame estere tra il peptide nascente e il tRNA anziché che la formazione del legame pe

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43

Binny, Diana. "Radiotherapy quality assurance using statistical process control." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/130738/1/Diana_Binny_Thesis.pdf.

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The work presented in this thesis was a step forward in applying statistics to the important problem of monitoring machine performance and quantifying optimal treatment quality assurance in radiotherapy. This research investigated the use of an analytical decision making tool known as Statistical Process Control (SPC) that employs statistical means to measure, monitor and identify random and systematic errors in a process based on observed behaviour. In this research, several treatment machine and planning system parameters were investigated and a method of calculating SPC based tolerances to

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44

Akkinepally, Radha. "Quality control and quality assurance of hot mix asphalt construction in Delaware." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 2.68Mb, 136p, 2005. http://wwwlib.umi.com/dissertations/fullcit/1428173.

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45

McGrew, Don. "A review of sensory quality control and quality assurance for alcoholic beverages." Kansas State University, 2011. http://hdl.handle.net/2097/9160.

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Master of Science<br>Food Science<br>Delores H. Chambers<br>Tools are available, through various reference books, to develop a purposeful sensory quality program. Some companies already have a strong sensory program in place; others may require a cultural change to facilitate the implementation. This paper indicates some of the challenges to be overcome, covers some current quality control (QC) sensory practices and addresses advantages and disadvantages of expert tasters Some specific issues regarding sensory evaluations of alcohol beverages are discussed and critical factors in production a

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46

Twala, Luphumlo Rodney. "An investigation into the impact of quality management systems on General Motors suppliers." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1020927.

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Acceptable product quality is one of the central pillars of customer satisfaction, which is key to customer retention and business success. The quest to improve and maintain good product quality is as old as mankind himself. In the beginning of time, quality involved selecting edible plants, to craftsmanship then later to mass production. As time went on, various individuals and institutions made valuable contributions to quality control methods, tools and techniques as we know them today. The International Organisation for Standardisation initiated quality management standards, provide requir

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47

Chatelain, Pierre. "Quality-driven control of a robotized ultrasound probe." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S092/document.

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La manipulation robotique d'une sonde échographique a été un important sujet de recherche depuis plusieurs années. Plus particulièrement, des méthodes d'asservissement visuel guidé par échographie ont été développées pour accomplir différentes tâches, telles que la compensation de mouvement, le maintien de la visibilité d'une structure pendant la téléopération, ou le suivi d'un instrument chirurgical. Cependant, en raison de la nature des images échographiques, garantir une bonne qualité d'image durant l'acquisition est un problème difficile, qui a jusqu'ici été très peu abordé. Cette thèse tr

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48

Bayley, Luke Accounting Australian School of Business UNSW. "Aspects of accounting quality." Awarded by:University of New South Wales. Accounting, 2007. http://handle.unsw.edu.au/1959.4/40476.

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Accounting numbers are not only the products of peripheral economic events, but, by and large, can be consciously influenced from the effects of calculated business decisions and the selective applications of alternative reporting procedures. In academic parlance, the term accounting quality, or lack thereof, is often used to describe the extent to which these convoluting influences create a disparity between economic fundamentals and their numerical portrayal. This doctoral thesis speaks to three aspects of accounting quality; (i) Earnings Thresholds: A Re-Examination of the Role of Earnings

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49

Meurée, Cédric. "Arterial spin labelling : quality control and super-resolution." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S016/document.

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L'arterial spin labelling (ASL) est une technique d'imagerie par résonance magnétique de la perfusion cérébrale. Les travaux présentés dans cette thèse ont d'abord consisté à standardiser les acquisitions ASL dans le contexte d'études de neuro-imagerie multicentriques. Un processus de contrôle de la qualité des images a par la suite été proposé. Les travaux se sont ensuite orientés vers le post-traitement de données ASL, en évaluant la capacité d'algorithmes existants à y corriger les distorsions. Des méthodes de super-résolution adaptées aux acquisitions ASL mono et multi-TI ont finalement ét

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50

Duncalf, A. J. "Quality assurance : An examination of the way that British manufacturing companies manage their Â£Tproduct qualityÂ£T." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377047.

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