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Dissertations / Theses on the topic 'Quality of production processes'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Gerlich, Sven Patrick, and Max Gottschalk. "Control and Reduction of Deviations in Production Processes : An Intelligent Quality Management approach." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Logistik och verksamhetsledning, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-45225.

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Companies situated in the manufacturing industry are facing many challenges. In order to stay competitive and to be able to meet customer needs the product and process quality must be ensured through efficient Quality Management (QM) activities. In this context, occurrences of deviations in production processes are often a significant problem causing an increased rate of scraps and rework actions, which have a direct impact on the production system performance. Therefore, the purpose of this thesis is to explore the concept of IQM in connection with ways to control and reduce deviations withi

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2

BESERRA, MARCELA TATIANA FERNANDES. "RADIOSCOPY APPLIED TO THE IMPROVEMENT OF INDUSTRIAL PROCESSES OF QUALITY CONTROL IN THE BRAZILIAN FOOTWEAR PRODUCTION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=21802@1.

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CENTRO FEDERAL DE EDUCAÇÃO TECNOLÓGICA CELSO SUCKOW FONSECA<br>Segundo os números do Ministério do Desenvolvimento e Indústria e Comércio Exterior, a China liderou nos últimos 5 anos o mercado brasileiro de importações de calçados, representando 70 por cento do total importado. O Brasil vem registrando quedas nas exportações de calçados; em 2011 houve uma redução média de 21,5 por cento comparado ao ano de 2010. Desta forma, o Brasil passou a ocupar a oitava posição no mercado exportador. Além disso, os asiáticos vêm melhorando a qualidade e nível tecnológico de seus calçados para alguns nicho

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3

Richelle, Anne. "Modelling, optimization and control of yeast fermentation processes in food industry." Doctoral thesis, Universite Libre de Bruxelles, 2014. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209280.

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A macroscopic model describing the main physiological phenomena observed during the fed-batch baker’s yeast production process and including the influence of nitrogen on the key bio-mechanisms is proposed. First, on the basis of a set of biological reactions, inspired by the model of Sonnleitner and Käppeli, a model in which the nitrogen and glucose consumption are coordinated is proposed. Second, an attempt of estimating storage carbohydrate contents in yeast cells through an extension of this model is presented. The model is identified and validated with experimental data of fed-batch yeast

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4

Harrington, Daniel F. "An investigation of an alternative to acceptance sampling through a Markov chain analysis of a manufacturing process quality control program." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA240349.

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Thesis (M.S. in Operations Research)--Naval Postgraduate School, September 1990.<br>Thesis Advisor(s): Lindsay, Glenn F. Second Reader: Bailey, Michael P. "September 1990." Description based on title screen as viewed on December 21, 2009. DTIC Identifier(s): Quality control, sampling, acceptance tests, production control, theses, mathematical models, vendors. Author(s) subject terms: Markov chain, P-chart, fraction nonconforming vs AQL. Includes bibliographical references (p. 50). Also available in print.

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Poirier, Debra. "Implementation of six sigma at Company XYZ to eliminate finished good nonconformance." Online version, 2009. http://www.uwstout.edu/lib/thesis/2009/2009poirierd.pdf.

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6

Kaiser, Andrea [Verfasser]. "Development of Innovative, Energy-Efficient Processes for the Production of High Quality Herbs and Spices / Andrea Kaiser." Aachen : Shaker, 2014. http://d-nb.info/1053903219/34.

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Tashtoush, Tariq Husni. "Using lean principles and simulation to enhance the effectiveness of a failure analysis laboratory in a manufacturing environment." Diss., Online access via UMI:, 2009.

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Thesis (M.S.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Systems Science and Industrial Engineering, 2009.<br>Includes bibliographical references.

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8

Ozsan, Guney. "Monitoring High Quality Processes: A Study Of Estimation Errors On The Time-between-events Exponentially Weighted Moving Average Schemes." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12610031/index.pdf.

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In some production environments the defect rates are considerably low such that measurement of fraction of nonconforming items reaches parts per million level. In such environments, monitoring the number of conforming items between consecutive nonconforming items, namely the time between events (TBE) is often suggested. However, in the design of control charts for TBE monitoring a common practice is the assumptions of known process parameters. Nevertheless, in many applications the true values of the process parameters are not known. Their estimates should be determined from a sample obtained

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9

Masha, Lerato Kennilworth. "Assessment of Nampak’s implementation of world class manufacturing strategy within the Nampak Plastic Rigids division." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/97414.

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Thesis (MBA)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: World Class Manufacturing (WCM) was first introduced into Nampak in 1990, and since then, there have been three attempts by the organisation to re-implement WCM in the organisation. In the last 23 years, 1990-2013, no formal assessment has been done with regard to evaluating whether the introduction of WCM was effective or not in the organisation, according to the goals and objectives set when the projects were initially implemented. The aim of this research report was to evaluate whether the implementation of WCM was effective

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10

Ferreira, Tatiana Gravena. "OPTIMIZATION OF COAGULATION AND SYNERESIS PROCESSES IN CHEESEMAKING USING A LIGHT BACKSCATTER SENSOR TECHNOLOGY." UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_theses/125.

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Curd syneresis, a critical step in cheesemaking, directly influences the quality of cheese. The syneresis process is empirically controlled in cheese manufacturing plants. A sensor technology for this step would improve process control and enhance cheese quality. A light backscatter sensor with a Large Field of View (LFV) was tested using a central composite design over a broad range of cheese process conditions including milk pH, calcium chloride addition level, milk fat to protein ratio, temperature, and a cutting time factor (β). The research objectives were to determine if the LFV sensor c

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11

Elhabashy, Ahmed Essam. "Quality Control Tools for Cyber-Physical Security of Production Systems." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/86725.

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With recent advancements in computer and network technologies, cyber-physical systems have become more susceptible to cyber-attacks; and production systems are no exception. Unlike traditional Information Technology (IT) systems, cyber-physical systems are not limited to attacks aimed at Intellectual Property (IP) theft, but also include attacks that maliciously affect the physical world. In manufacturing, such cyber-physical attacks can destroy equipment, force dimensional product changes, alter a product's mechanical characteristics, or endanger human lives. The manufacturing industry often

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12

Abubakar, Aminu Sahabi. "Contribution to the development of new maintenance strategies integrated to control charts for a production process under service levels, operational, and quality constraints." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0055.

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L'industrie de la production actuelle est caractérisée par des progrès significatifs : une augmentation massive de la haute technologie, l'émergence de clients exigeants, des marchés compétitifs, une qualité de produit variée et des demandes aléatoires ont exigé la collaboration des aspects interdépendants de la production. La production, la maintenance et la qualité sont les aspects les plus critiques du système industriel. Nous nous intéressons à l'optimisation de la maintenance qui joue un rôle essentiel dans la satisfaction du client, la durabilité et le développement des entreprises. Notr

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Hegerová, Ľudmila. "Návrh na zlepšení řízení jakosti." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2010. http://www.nusl.cz/ntk/nusl-222739.

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This master thesis consider the proposal for quality improvement of an industrial process. There are recomended proposals and methods for improvement of current situation of processing on the production of provided information here.

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Armendariz, Charles E. "Makeready reduction in a platen die cutting operation : an analysis of process improvement methodologies /." Online version of thesis, 2009. http://ritdml.rit.edu/handle/1850/10844.

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Barreira, Luciana Pranzetti. "Avaliação das usinas de compostagem do estado de São Paulo em função da qualidade dos compostos e processos de produção." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/6/6134/tde-08032006-111308/.

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Aliada à geração constante de resíduos estão as dificuldades nas formas de disposição e tratamento, muitas vezes custosas e que não levam em consideração suas características básicas. No Brasil, 60% da composição dos resíduos é matéria orgânica passível de reciclagem por meio do processo de compostagem, um método simplificado e sem custos elevados para o seu tratamento sanitariamente adequado. No entanto, as usinas de compostagem são vistas somente como grandes obras de engenharia, capazes de reduzir o volume de resíduos, produzindo um composto de baixa qualidade e vendido a preços irrisórios.

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Skoog, Johanna, and Amra Jusufagic. "“Implementation of quality control in order to assure the quality of a manufacturing process within a production line”." Thesis, Växjö University, School of Technology and Design, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-1558.

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<p>This project is performed at Volvo Construction Equipments in Braås, which is one of the world leading producers of equipment for construction places. The quality aspect is an important factor when increasing the production in a manufacturing company and the role of quality should be highlighted in order to produce more error-free products, using cost-effective methods and tools. This case study emphasises ways of implementing quality control in order to quality assure the manufacturing process with focus on the manual and automatic handling. By standardising and analysing the collected and

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17

Яшина, Тетяна Вікторівна, Татьяна Викторовна Яшина, Tetiana Viktorivna Yashyna та ін. "Розробка алгоритму оцінювання якості виробничих процесів". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66759.

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Високий рівень якості продукції на будь-якому сучасному підприємстві досягатися застосуванням прогресивних та ефективних підходів до методів її оцінювання, прогнозування та управління. Згідно з міжнародними стандартами [1], таким підходом являється забезпечення якості виробництва на всіх етапах життєвого циклу, як єдиної системи, спрямованої на отримання високоякісної продукції. Але методологія оцінювання процесів не визначена і не існує нормативного документу, який би регламентував порядок оцінювання якості процесів.

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18

Berauer, Bernd Josef [Verfasser], and Anke [Akademischer Betreuer] Jentsch. "Processes altering species richness, primary production and leaf nutritive quality across European grasslands exposed to climate change / Bernd Josef Berauer ; Betreuer: Anke Jentsch." Bayreuth : Universität Bayreuth, 2021. http://nbn-resolving.de/urn:nbn:de:bvb:703-epub-5781-3.

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19

Smit, Wiehahn. "Assessing the contribution of quality and efficiency initiatives to reduce productions costs at Distell's Green Park." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/5042.

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Thesis (MBA (Business Management))--Stellenbosch University, 2008.<br>ENGLISH ABSTRACT: Manufacturers can gain a competitive advantage through lower production cost, better quality, better efficiencies and being more flexible and dependable than its competitors. Lower production cost can be a result of first-time-right quality products and efficient production processes in terms of throughput. Low production cost is not a destination but a journey where the goalpost will always move as competitors will continuously come up with ideas to lower prices and margins have to be cut in order to stay

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Morello, Luca. "Sustainable landfilling: hybrid bioreactors and final storage quality." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3424792.

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Modern landfilling constitutes an unavoidable final step in solid waste management. It aims to close the “Material Cycle” bringing elements back to the non-mobile state they were in before their extraction. At the same time, the application of Sustainability Principle to landfills prescribes to guarantee environmental protection and health safety, ensuring that the disposed waste will be chemically and biochemically stable within a reasonable amount of time. A “Sustainable Landfill” must combine these two fundamental purposes, balancing the efforts to obtain a “sustainable closure of material

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21

Cuellar-Valer, Stephanie, Angie Gongora-Vilca, Ernesto Altamirano-Flores, and Daniel Aderhold. "Application of lean manufacturing in a peruvian clothing company to reduce the amount of non-conforming products." Springer, 2021. http://hdl.handle.net/10757/655941.

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This article describes how Lean Manufacturing tools were applied in a Peruvian textile company. A production management model is proposed whose goal is to reduce the number of non-conforming products in the pants manufacturing line. For this, all information was gathered from the production area of the company under study. With the use of quality tools, the diagnosis of the current situation of the pants line was made, identifying the most significant defects, which were 19.43% of produced units in 2018. It was determined that the main causes of the observed defects refer to non-standardized s

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22

Pappová, Barbora. "Optimalizace výrobních procesů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229263.

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This master’s thesis deals with the current condition of management quality system analyses in the organization of "Brněnská Drutěva", industrial cooperative in a box-making plant. Certification according to the norm ČSN EN ISO 9001:2009 has just been extended into this plant. For these purposes it was required to do an input analyses, as well as to identify and survey processes in the plant. Upon the ascertainment some recommendations for processes and management quality system optimization have been specified. These recommendations should function as instructions for the management quality s

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Barkley, William J. "Application and effectiveness of lean principles within Company XYZ." Menomonie, WI : University of Wisconsin--Stout, 2005. http://www.uwstout.edu/lib/thesis/2005/2005barkleyw.pdf.

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Fonseca, Jorge, Wesley L. Kline, Christian A. Wyenandt, Mushidul Hoque, and Husein Ajwa. "Evaluation of a New Harpin Product on Microbial Quality and Shelf Life of Minimally Processed Lettuce." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/214997.

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The effect of pre-harvest application of Extend®, a newly developed second generation harpin product, on shelf life of fresh-cut lettuce was investigated. The lettuces were grown in locations A: Watsonville, CA; B: Cedarville, NJ; and C: Yuma, AZ, and treated five days before harvest at 30, 60 and 90 ppm (2,4 and 6 oz/acre in 50 gal/acre). Lettuce processed and bagged was stored at 34-37°F and evaluated for quality for 20 days. Lettuce from trial A treated with 60-90 ppm harpin consistently had a better overall quality and lower microbial population than the control. Results from trial B showe

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Templeton, Jessica. "Production Services Reporting System Analysis." Thesis, University of Canterbury. Engineering Management, 2013. http://hdl.handle.net/10092/7451.

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The purpose of the analysis was to realise potential areas for improvement within the Production Services department. Sources of inefficiency within the Reporting System were identified to support recommendations for the rationalisation, streamlining and alignment of processes. Lean philosophies and Total Quality Management techniques were reviewed to gain an understanding of applicability to Production Services. Evaluation through Value Stream Mapping determined a reporting process efficiency of 71% and two supplementary waste types were recognised in addition to the standard seven wastes o

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Bihi, Amiin. "Lean Six Sigma for In-Process Quality Improvement : Case Study of a Battery Cell Production Process." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-51502.

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Purpose The purpose of this thesis is to investigate the efficiency and performance of Quality control with focus on the inspections performed within production processes and how Lean Six Sigma can affect them. This can be done through mapping a current state to identify inefficiencies and wastes. The research will be used to answer following questions: How can Lean improve efficiency for in-process quality control? How can integration of Lean Six Sigma be applied to optimize processes? Can Six Sigma techniques increase the performance of quality control? Method A production process approa

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Gebus, S. (Sébastien). "Knowledge-based decision support systems for production optimization and quality improvement in the electronics industry." Doctoral thesis, University of Oulu, 2006. http://urn.fi/urn:isbn:9514282051.

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Abstract For the past few years, electronics manufacturing may have been the victim of its own success. Unlike in heavier industries, rationalization is a concept that was unknown in the sector until only a few years ago and even now, many companies are struggling with cost-cutting measures. Production systems in electronics manufacturing need to be highly flexible because of a varying and evolving environment. Therefore real-time process control and, possibly as a result, production optimization are extremely challenging areas. Traditional approaches often do not work due to a lack of robustn

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Ebrahimi, Mohammad. "Influence of cultivation parameters on production and quality of biodiesel obtained from Jatropha curcas seeds." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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In recent years several research groups have been trying to study and develop different techniques to convert vegetable oil into biodiesel. They have also been working to produce biodiesel from plants which do not compete with food crops for the people. One plant that meets all these requirements is the Jatropha Curcas and it is the object of this work. This plant is of great importance as it allows its cultivation under difficult environmental conditions; its production cycle is only 40 years. In this project the oil extraction and the biofuel production from the seeds of this plant has been

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Eklund, Henrik, and Jacob Engström. "Ensuring high-quality production during commissioning and ramp-up : A case study at Northvolt." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85130.

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Rechargeable lithium-ion batteries (LIBs) have generated a shift in the automotive industry towards electric vehicles (EVs) instead of vehicles powered by fossil fuels. As a result, the demand for LIBs is only expected to grow in the future due to an increased demand for passenger EVs. Consequently, LIB manufacturers have to increase their production to meet the increasing demand. Northvolt is a Swedish LIB manufacturer founded in 2016, aiming to start the production of LIBs at the Northvolt Ett factory in Skellefteå during 2021. The Northvolt Ett factory will be one of the largest battery pl

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Riccetti, Sauro. "Design of equipment safety & reliability for an aseptic liquid food packaging line through maintenance engineering." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/5301.

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The organisation of maintenance, in the Aseptic Liquid Food (ALF) industry, represents an important management task that enables a company to pursue higher manufacturing effectiveness and improved market share. This research is concerned with the process to design and implement maintenance tasks. These two complementary processes (design and implementation) have been thought and designed to answer the particular needs of food industry regarding product safety and equipment reliability. Numerous maintenance engineering researchers have focused on maintenance engineering and reliability techniqu

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Crandall, Angela M. "Organizational Determinants Of Information Quality In Local Education Agencies." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1219940918.

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Pompa, Mattia. "Lean Production, World Class Manufacturing e Six Sigma: il controllo statistico di processo nel caso Haier Europe." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Nell’elaborato di tesi è stata descritta un’iniziativa di analisi e miglioramento di processo dedicata alla linea di stampaggio dell’involucro di acciaio che costituisce il corpo delle lavatrici realizzate dall’azienda Haier Europe, al fine di garantire un prodotto di maggiore appetibilità e ridurre costi e difetti di non conformità. Nella prima parte dell’elaborato è stato affrontato il percorso storico che ha portato all’avvento del modello giapponese sviluppatosi con il Toyota Production System e alla nascita del pensiero di produzione “snella”. Si è passati alla descrizione del procedime

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Luna, Adélia Viviane Mello de. "Gestão e melhoria de processos em uma indústria farmacêutica pública: estudo de caso do processo de fabricação de comprimidos revestidos." Universidade Federal Fluminense, 2013. https://app.uff.br/riuff/handle/1/972.

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Submitted by Marcia Silva (marcia@latec.uff.br) on 2015-11-19T14:37:53Z No. of bitstreams: 1 DISSERTAÇÃO ADÉLIA VIVIANE DE LUNA.pdf: 1300839 bytes, checksum: 57ef96d77a59870b10798fc7e7d3f0bc (MD5)<br>Made available in DSpace on 2015-11-19T14:37:53Z (GMT). No. of bitstreams: 1 DISSERTAÇÃO ADÉLIA VIVIANE DE LUNA.pdf: 1300839 bytes, checksum: 57ef96d77a59870b10798fc7e7d3f0bc (MD5) Previous issue date: 2013-08-14<br>Esta pesquisa tem como objetivo analisar o processo produtivo da linha de medicamentos sólidos orais - comprimidos revestidos, utilizando as ferramentas da qualidade. A metodol

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Berglund, Lina, Filip Ivarsson, and Marcus Rostmark. "Crucial Parameters for Additive Manufacturing of Metals : A Study in Quality Improvement." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254785.

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Production by Additive Manufacturing creates opportunities to make customized products in small batches with less material than in traditional manufacturing. It is more sustainable and suitable for niche products, but entails new production demands to ensure quality. The goal of this study is to define the most crucial parameters when creating Additive Manufactured products in metal and suggest tools for quality improvement. This is done by analysing earlier studies and evaluating the standard production procedures for manufacturing by Selective Laser Melting. The results from this study state

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Daniš, Pavel. "Analýza rizik a ich riešenie v procese výroby." Master's thesis, Vysoká škola ekonomická v Praze, 2017. http://www.nusl.cz/ntk/nusl-359403.

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The thesis deals with the analysis of risks and ways of their solutions in the production process. Its main contribution is the design improvement of the production process of air conditioning systems in Lindab s. r. o. The thesis provides a comprehensive overview of the FMEA method with its elements aimed at process improvements, identifications of production risks, their causes, levels of severity, occurrence and detection. It is divided into a theoretical and practical part. The thesis is based on foreign literature and findings from research internship carried out in Lindab s. r. o. during

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Nilsson, Marcus, and Johan Ruth. "SPC and DOE in production of organic electronics." Thesis, Linköping University, Department of Science and Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6240.

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<p>At Acreo AB located in Norrköping, Sweden, research and development in the field of organic electronics have been conducted since 1998. Several electronic devices and systems have been realized. In late 2003 a commercial printing press was installed to test large scale production of these devices. Prior to the summer of 2005 the project made significant progress. As a step towards industrialisation, the variability and yield of the printing process needed to bee studied. A decision to implement Statistical Process Control (SPC) and Design of Experiments (DOE) to evaluate and improve the pro

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Villar, Fabíola Bach. "Fatores intervenientes na produção da notícia e seus impactos na qualidade da informação." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/164572.

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A imprevisibilidade dos acontecimentos que se transformarão em notícia e a necessidade de cumprir um horário de fechamento diário tornam o trabalho em redação de jornal uma atividade sob a constante pressão de fatores internos e externos. Premidos pelo tempo, a todo instante editores precisam decidir rapidamente se apostam ou não em um fato como notícia, que grau de complexidade darão à pauta, se o repórter vai para a rua buscar informações, quantas e quais pessoas devem ser ouvidas, qual espaço o assunto irá ocupar na edição. E, principalmente, como garantir que o resultado dessas decisões se

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Нарівський, О. Е., та Л. І. Аксьонова. "Вимірювання та оцінювання процесів житєвого циклу продукції для забезпечення стабільності показників якості продукції". Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/48152.

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Одним з основних завдань системи розробки та постановки продукції на виробництво є забезпечення стабільності показників якості продукції, що виробляється. Це об’єднує цю систему із сучасною системою управління якістю (СУЯ), що відповідає міжнародному стандарту ISO 9001 [1]. Разом з тим цей стандарт дає загальний опис оптимально організованого виробництва. На це спрямовані два його базових принципів – системний та процесний підходи.

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Yurtseven, Saygin. "Analysis Of The Influence Of Non-machining Process Parameters On Product Quality By Experimental Design And Statistical Analysis." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1026863/index.pdf.

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This thesis illustrates analysis of the influence of the non-machining processes on product quality by experimental design and statistical analysis. For the analysis objective<br>dishwasher production in Arcelik Dishwasher plant is examined. Sheet metal forming processes of dishwasher production constitutes the greatest portion of production cost and using the Pareto analysis technique<br>four pieces among twenty six pieces are determined to be investigated. These four pieces are the U Sheet, L Sheet, Inner Door and Side Panel of the dishwasher. By the help of the flow diagrams production pro

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Inam, Muhammad Asif. "Particle sizing and product quality in production of fine and nano particles by means of wet grinding process." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0028/document.

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Le procédé de broyage en voie humide est une opération intéressante permettant la production de particules fines ou de nanoparticules. La caractérisation de la taille des particules est une donnée essentielle pour l'interprétation des données, le contrôle et l'optimisation de ces procédés selon divers aspects. Il y a un manque de connaissances relatif à la caractérisation de la taille de particules en relation avec les procédés de broyage en voie humide. Cette caractérisation est spécifique pour différentes raisons. (i) Les dispersions traitées par broyage contiennent souvent des impuretés et

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Nuintin, Adriano Antonio. "O desenvolvimento de indicadores do desempenho e da qualidade para o processo de produção: Estudo de casos do processo de produção do café." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/96/96133/tde-20072007-164549/.

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Este trabalho procura investigar o desenvolvimento de indicadores do desempenho e da qualidade para o processo de produção. O objetivo é verificar por que existe dificuldade em generalizar os indicadores do desempenho e da qualidade para todos os processos de produção, e desenvolver uma metodologia para determinar estes indicadores. O processo de produção é entendido como um conjunto de causas operando insumos, resultando em efeitos. Dessa forma, os indicadores do desempenho irão avaliar as causas, e os indicadores da qualidade irão avaliar os efeitos do processo de produção. A revisão bibliog

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Chandran, Sarath, and Mathews Jithin Abraham. "Simulation and Optimization of CNC controlled grinding processes : Analysis and simulation of automated robot finshing process." Thesis, Högskolan i Halmstad, Maskinteknisk produktframtagning (MTEK), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-30709.

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Products with complicated shapes require superior surface finish to perform the intended function. Despite significant developments in technology, finishing operations are still performed semi automatically/manually, relying on the skills of the machinist. The pressure to produce products at the best quality in the shortest lead time has made it highly inconvenient to depend on traditional methods. Thus, there is a rising need for automation which has become a resource to remain competitive in the manufacturing industry. Diminishing return of trading quality over time in finishing operations s

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Elsheikhi, Salah A. "A holistic approach to injection moulding optimisation for product quality and cost through the characterisation of reprocessed polymeric materials and process monitoring : experimental evaluations and statistical analysis of multiple reprocessing of unfilled and short glass fibre filled polypropylene materials : an optimised methodology to realise minimum product cost at an acceptable product quality." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5405.

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The plastics industry is one of the fastest growing major industries in the world. There is an increase in the amount of plastic used for all types of products due to its light weight and ability to reprocess. For this reason, the reprocessing of thermoplastics and the usability of reprocessed materials are gaining significance, and it is important to produce and consume plastic materials in an environmentally friendly way. In addition, rising raw material cost linked to the increased oil prices encouraged for reusing of the plastic materials. The aim of this research was to study and optimize

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Polák, Martin. "Racionalizace výroby digitálního přijímače." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217954.

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This diploma thesis deals with topics related to optimalization and increases quality production in the electronics industry. Project purpose was to analyze process production manufacturing digital receiver in specific situation applied upon multinational company. Main part mine work was build-up FMEA analysis and creation control plan production line. For optimize production flow was application method lean production and for department material supply method KANBAN. This diploma thesis has been written within cooperation of Celestica Ráječko company where I have picked up data and knowledge

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Harvey, Martha M. (Martha Mattern). "The Fixed v. Variable Sampling Interval Shewhart X-Bar Control Chart in the Presence of Positively Autocorrelated Data." Thesis, University of North Texas, 1993. https://digital.library.unt.edu/ark:/67531/metadc278763/.

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This study uses simulation to examine differences between fixed sampling interval (FSI) and variable sampling interval (VSI) Shewhart X-bar control charts for processes that produce positively autocorrelated data. The influence of sample size (1 and 5), autocorrelation parameter, shift in process mean, and length of time between samples is investigated by comparing average time (ATS) and average number of samples (ANSS) to produce an out of control signal for FSI and VSI Shewhart X-bar charts. These comparisons are conducted in two ways: control chart limits pre-set at ±3σ_x / √n and limits co

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Fryklind, Louisa. "Kvalitetsarbete - från japanska sjön till fast mark." Thesis, Mälardalen University, Department of Innovation, Design and Product Development, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-429.

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<p>Sammanfattning</p><p>Segerström Automotive tillverkar plåtkomponenter till kunder som Scania, Stiga och Volvo. Företaget befinner sig i en expansiv fas, men konkurrensen på marknaden är hård och kraven på god kvalitet höga. Företaget är kvalitets- och miljöcertifierat. Som del i förbättrings- och kvalitetsarbetet har en nystart av verksamhetens produktionssystem, SAPS (Segerström Automotive Production System), skett. Ett av företagets mål för de närmsta åren är att minska antalet externa reklamationer. Eftersom detta inte skett i önskad takt ansågs en utredning över vad som orsakat antalet

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Sarraut, Patrick. "Commande avancée de la qualité et de la production d'un procédé de fermentation continue." Grenoble INPG, 1995. http://www.theses.fr/1995INPG0166.

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Cette these concerne l'application de techniques avancees d'automatique afin de controler la qualite et le debit de production d'un procede de fermentation continue destine a produire une biere faiblement alcoolisee. Dans une premiere partie, l'etude de modelisation du procede est presentee. Pour la modelisation des phenomenes hydrodynamiques lies a l'utilisation d'un reacteur a lit fixe, nous avons developpe une methode originale s'appuyant sur les techniques d'identification permettant d'obtenir un modele compartimental simple a partir d'experiences de tracage. Les phenomenes biologiques ont

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Banatová, Radomíra. "Řízení jakosti ve výrobě firmy." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2008. http://www.nusl.cz/ntk/nusl-221709.

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This masters thesis considers the proposal for quality improvement of an industrial process. Established methods and proccesses according to valid ISO standards are described here. There are recommended proposals and methods for improvement of current situation of processing On the production of provided informations here.

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Vikström, Amanda. "Separate Calcination in Cement Clinker Production : A laboratory scale study on how an electrified separate calcination step affects the phase composition of cement clinker." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-184038.

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Cement production is responsible for around 7% of the global anthropogenic carbon dioxide emissions. More than half of these emissions are due to the unavoidable release of carbon dioxide upon thermal decomposition of the main raw material limestone. Many different options for carbon capture are currently being investigated to lower emissions, and one potential route to facilitate carbon capture could be the implementation of an electrified separate calcination step. However, potential effects on the phase composition of cement clinker need to be investigated, which is the aim of the present s

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Saathof, David. "An investigation of the measurement accuracy and productivity of a Waratah HTH 625c Processor Head." Thesis, University of Canterbury. School of Forestry, 2014. http://hdl.handle.net/10092/10459.

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Log processor heads have become increasingly used in New Zealand (NZ) forest harvesting operations to increase productivity and improve worker safety. Information regarding the measurement accuracy and productivity of new model processor heads is limited. As a result, log quality control (QC) is carried out on logs that have been merchandised by a processor head. This task can have a high risk for injury from man – machine interaction. A trend between studies was that older model Waratah’s did not have sufficient measurement accuracy to alleviate the requirement for log QC. In this study, a Wa

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