Relevant bibliographies by topics / One-Piece-Flow

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'One-Piece-Flow'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "One-Piece-Flow"

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Nyhuis, Peter, and Markus Vogel. "Logistische Positionierung von One-Piece-Flow-Prozessen." ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb 100, no. 3 (March 27, 2005): 99–103. http://dx.doi.org/10.3139/104.100869.

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Hu, Luo Yan, Ya Rui Huo, Chang Qing Jin, Yan Zheng, Qian Zheng, and Yan Yan Xu. "One-Piece Flow Implementation Research in the Garment Enterprises." Advanced Materials Research 655-657 (January 2013): 2352–57. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.2352.

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One-piece flow is one of the effective tools of lean production. Many garment enterprises expect to implement it in their own enterprises, but a lot of difficulties exist in the implementation process. In this paper, it takes an example of a well-known processing enterprise and to study the one-piece flow implementation process of a pair of jeans pipeline. By nearly a year of tracking and research, the paper systematically summarizes the pre-production preparation and production maintenance in the implementation of the One-piece flow. It demonstrates in detail on how to achieve the improvement of the hardware, software and personnel in order to reach the requirement of one-piece flow. Then, it systematically discusses the wage system of one-piece flow and will provide a theoretical and practical basis for the implementation of a single-piece flow production.
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Nyhuis, Peter, and Markus Vogel. "Adaptation of logistic operating curves to one‐piece flow processes." International Journal of Productivity and Performance Management 55, no. 3/4 (April 1, 2006): 284–99. http://dx.doi.org/10.1108/17410400610653237.

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PurposeTo provide a model for precise logistic controlling of one‐piece flow processes and for the description of the interactions between logistic performance measures. The developed method can help manufacturing enterprises to control their production processes and therewith to exploit existing rationalization potentials in their production.Design/methodology/approachThe Institute of Production System and Logistics adapted the logistic operating curve for schedule reliability and the logistic operating curve for mean throughput time to describe the behaviour of one‐piece flow processes. This model‐based method depicts the correlation between the delivery reliability and mean WIP level of single manufacturing systems and enables a goal‐oriented modelling as well as a controlling of single manufacturing processes.FindingsThe derivation, calculation, and fields of application of the logistic operating curves for one‐piece flow processes, that give a functional relationship between mean WIP, mean throughput time and schedule reliability, are presented in this paper. Moreover, the paper presents how the logistic performance measures can be adjusted to target values.Originality/valueThis paper offers practical help to manufacturing enterprises confronted with the task of evaluation and optimization of manufacturing processes within the framework of production controlling. Moreover, the developed method enables manufacturing enterprises to identify bottleneck work systems where action can be taken to optimize their schedule situation and thereby improve the delivery reliability of an entire manufacturing department.
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MILTENBURG, JOHN. "One-piece flow manufacturing on U-shaped production lines: a tutorial." IIE Transactions 33, no. 4 (April 2001): 303–21. http://dx.doi.org/10.1080/07408170108936831.

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INOUE, Reiko, and Youichi NONAKA. "Development of Transportation Control System for Buffer-less One-Piece Flow Line." Journal of the Japan Society for Precision Engineering 80, no. 3 (2014): 322–27. http://dx.doi.org/10.2493/jjspe.80.322.

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Shi, ZhuanZhuan, YunLi Tian, XiaoShuai Wu, ChangMing Li, and Ling Yu. "A one-piece lateral flow impedimetric test strip for label-free clenbuterol detection." Analytical Methods 7, no. 12 (2015): 4957–64. http://dx.doi.org/10.1039/c5ay00706b.

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Ioana, Apafaian Dumitrita, Egri Diana Maria, and Veres Cristina. "Case Study Regarding the Implementation of One-Piece Flow Line in Automotive Company." Procedia Manufacturing 46 (2020): 244–48. http://dx.doi.org/10.1016/j.promfg.2020.03.036.

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Kneer, Aron, Michael Wirtz, Marcel Can Bozkurt, Alexander Solohub, Timo Laufer, Markus Hauf, Thomas Altmannsberger, Hermann Bieg, and Stephan Barbe. "One‐Piece Stainless‐Steel 3D Printed Minichannel Evaporators using Flow Boiling Carbon Dioxide." Chemical Engineering & Technology 43, no. 5 (March 3, 2020): 923–32. http://dx.doi.org/10.1002/ceat.202000069.

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Li, S. G., Y. Ni, X. Wang, L. Shi, and L. J. Zhu. "Design of one-piece flow production system with mixed flows: a timed process flow diagram-based approach." International Journal of Computer Integrated Manufacturing 25, no. 11 (November 2012): 996–1010. http://dx.doi.org/10.1080/0951192x.2012.684709.

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Li, S. G., and Y. L. Rong. "The reliable design of one-piece flow production system using fuzzy ant colony optimization." Computers & Operations Research 36, no. 5 (May 2009): 1656–63. http://dx.doi.org/10.1016/j.cor.2008.03.010.

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Dissertations / Theses on the topic "One-Piece-Flow"

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Roque, Hélder Rodrigues. "One piece flow - aplicado à produção de peças na indústria automóvel." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10071.

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Mestrado em Engenharia Mecânica
O pensamento lean é cada vez mais visto como uma método a seguir pelas empresas que pretendem tornar-se de uma forma contínua mais competitivas e capazes de responder as necessidades dos seus clientes. Esta filosofia consiste em eliminar todos os desperdícios existentes, entende-se por desperdícios tudo aquilo que se faz sem que acrescente valor ao produto. Esta dissertação teve como base um estágio orientado para o pensamento lean. O objectivo deste estágio é analisar três casos de estudo com o intuito de efectuar o fluxo contínuo entre as diversas operações a que estão sujeitas as peças em cada caso. Obtendo um fluxo contínuo consegue-se eliminar alguns dos desperdícios identificados pelo pensamento lean, tais como, armazenamento de peças em contentores, espaço ocupado por estes, movimentações e transportes desnecessários. Foram analisados três casos de estudo com o intuito de encontrar a melhor solução adaptada à realidade da empresa. Por vezes pequenas alterações no layout de uma empresa podem trazer grandes vantagens logísticas evitando assim o transporte excessivo das peças que se encontram em produção.
The lean thinking is becoming more and more notorious within the companies which want to be continuously more competitive and able to respond the requests from their clients. This method consists in eradicate every kind of waste. Waste is everything which doesn’t add value to the product. This thesis was based on a Lean thinking orientated trainee program. The goal of this program was to analyze three cases of study, with the aim of applying the continuous flow within the several production operations. The obtainment of a continuous flow allows some waste elimination, such as, part storage in containers, occupied space, transactions and unnecessary movements. Three cases of study were analyzed in order to find the best solution towards the company reality. Sometimes small layout changes can bring big logistic benefits, avoiding the excessive transport from parts which are in production.
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Harman, Steven R. (Steven Robert). "Implementation of lean manufacturing and one-piece flow at Allied Signal Aerospace." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10157.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997, and Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1997.
Includes bibliographical references (p. 69).
by Steven R. Harman.
M.S.
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Menarini, Maria Giulia. "Miglioramento di una linea di produzione di scambiatori di calore in ottica lean: il caso Kelvin S.r.l." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Il progetto centrale a questo elaborato di tesi si basa sull’esperienza di tirocinio presso l’azienda Kelvin S.r.l., specializzata nella progettazione e produzione di condizionatori industriali. L’obiettivo principale è quello di implementare le logiche fondanti la filosofia della Lean Production in ambito produttivo, al fine di apportare miglioramenti in ottica di Continuous Improvement. Questo elaborato tratta in particolare della riprogettazione di una linea di scambiatori di calore, focalizzandosi sullo studio di una particolare famiglia di prodotto. Si è studiato il flusso del valore attraverso una mappatura tramite Value Stream Mapping e si è progettata una soluzione ottimale basata sulla riduzione delle tempistiche di assemblaggio e sul livellamento dei carichi di lavoro, eliminando i pre-assemblati e tutti gli sprechi che ne derivano. È stato attuato un insieme di miglioramenti basati su: applicazione delle 5S, ottimizzazione dell’area di lavoro e modifica delle sequenze di produzione e del metodo di lavoro. La combinazione di tutti questi miglioramenti ha definito un maggiore controllo del processo in termini di sicurezza, qualità ed efficienza, in ottica One-Piece Flow, ottenendo un miglioramento dell’indice di flusso del 10% e la riduzione del tempo di attraversamento del prodotto dal magazzino materie prime al magazzino prodotti finiti del 50%, passando da 4 a 2 giorni.
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Fuzzi, Mirko. "Riprogettazione ed ingegnerizzazione di una linea di assemblaggio in ottica Continuous Improvement: il caso Celli UK." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Il progetto fondato sul Continuous Improvement, all’interno del quale è stata sviluppata l’esperienza di tirocinio presso l’azienda inglese Celli UK di proprietà del gruppo italiano Celli S.p.a., vede come obiettivo principale quello di implementare ed attuare le tecniche sulle quali si basa la filosofia della Lean Manufacturing, con il fine ultimo di apportare miglioramenti tangibili attinenti al reparto produttivo e misurarne i risultati. L’elaborato della tesi è incentrato sulla riprogettazione ed ingegnerizzazione di una linea di assemblaggio di un particolare modello di spillatrice di birra (DM3), ritenuta critica per l’efficienza globale del reparto produttivo. Inoltre, viene illustrato come vengono messi in pratica strumenti Lean in relazione alla stessa linea target. I risultati ottenuti sono stati misurati tramite determinati KPI relativi alla riduzione del Tempo Ciclo di assemblaggio, all’efficienza della linea ed alla riduzione di pre-assemblaggi. È stato inoltre calcolato il cut-off period dell’investimento che è stato necessario tramite il payback. Oltre a ciò, durante il periodo di tirocinio, è stato implementato un nuovo sistema gestionale per il quale è servito migrare tutti i dati inerenti ai prodotti, le distinte base e le route dal gestionale obsoleto al più recente software ERP Microsoft Dynamics. Successivamente è proseguito il lavoro di creazione degli stessi per i nuovi prodotti acquistati e/o venduti.
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Rosén, Jan-Peter, and Kari Haukirauma. "Gaining Competitiveness Trough Understanding Critical Factors Affecting the Production System : A Case study in cooperation with GKN Driveline Köping AB." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-19494.

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Globalization and the increasing time to market have led to ever-higher requirements on the production systems. More than often the short-term thinking and the chase for profit lead to cheap quick fixes. The manufacturing industry changes slowly while the market is changing rapidly, which requires long-term planning for capacity increase but at the same time the ability to rapidly respond to changes. The most crucial factors determining the ability to efficiently produce and deliver a product to market is the utilized production system and a well stated manufacturing strategy. The choice of a certain production system depends on company conditions and requirements as well as the market demands. The current production systems performance and ability to handle different production volumes and divergence must be considered and evaluated from an economical perspective. During this thesis work the benefits and disadvantages with batch flow and one-piece flow have been examined. Generally one-piece flow had been considered the most efficient regarding performance and economical aspects. Meanwhile, batch flow had some benefits associated to it regarding high level of flexibility to handle several different product variants and better possibilities to govern the material flow compared to one-piece flow. There has also been examined which are the most crucial factors affecting the choice between one-piece flow and batch flow. It emerged during the thesis work that the most crucial factor affecting the choice of production system was the Manufacturing Strategy. It can be considered as the ground for every decision regarding the production system and future investments. It determines where the company currently stands, where they want to be in the future and which steps they need to take to get there. The economical factor is as least as important because all decisions include more or less costly investments. At the same time the chosen production system must be as efficient as possible and generate money for the company. Based on these two main factors other interesting factors have been presented. These factors may not affect the choice as much, but are to be considered as important in this context The most crucial factors found to affect the choice of a production system were; Manufacturing Strategy, Economical factors, Production planning and control, Flexibility and capacity, Production volume, variants and trends. The research work has been conducted over a twenty-week period, during which data collection has been performed via Multiple Case Studies at four companies manufacturing similar components within the light and heavy automotive industry. Additional data collection has been performed through a literature review by examining relevant material for the research questions. This have led to a collected knowledge base regarding benefits and disadvantages with each production system along with underlying reasons for deciding on one of them. Based on the collected material from the Case Studies and the theoretical findings, a Mind map visualizing the crucial factors affecting the choice of a production system is presented. This can be utilized by the companies in order for structured evaluation of their current production system and for planning for future changes within production.
Globaliseringen och den ökande pressen på företag att producera och få ut produkter på marknaden på kortast möjliga tid har lett till att det ställs allt högre krav på produktionssystemen. Allför ofta leder kortsiktigt tänkande och jakten på vinster till att företag väljer enkla och billiga snabblösningar. Tillverkningsindustrin förändras långsamt medans marknaden ändras fort, vilket kräver att företagen kan planera för långsiktiga kapacitetsökningar och ändå ha beredskap för att snabbt kunna anpassa sig till förändringar. Det som till allra största del avgör hur effektivt man kan producera och leverera en produkt till marknaden är vilket produktionssystem ett företag använder samt en välformulerad tillverkningsstrategi. Vilket produktionssystem man väljer är beroende av vilka förutsättningar och krav ett företag har lika mycket som av marknadskraven. Man måste ta hänsyn till det nuvarande produktionssystemets prestanda och möjlighet att hantera ändrade produktionsvolymer och variantflora och utvärdera detta ur en ekonomisk synvinkel. Under detta examensarbete har för- och nackdelar med batchflöde och enstycksflöde undersökts och utvärderats. Generellt sätt har enstycksflöde konstaterats vara mest effektivt rent ekonomiskt och prestandamässigt. Däremot, har batchflöde tilldelats fördelar som hög flexibilitet att hantera olika produktvarianter och bättre möjligheter att styra materialflödet jämfört med enstycksflöde. Det har även undersökts vilka som är de mest avgörande faktorerna som styr valet av enstycksflöde eller batchflöde. Under arbetets gång framkom det att den mest avgörande faktorn som påverkar valet av produktionssystem var företagets Produktionsstrategi. Den kan anses vara grunden för alla beslut rörande produktionssystemet och framtida satsningar. Där visar man var företaget befinner sig idag samt var man vill vara i framtiden och vilka beslut man måste ta för att ta sig dit. Den ekonomiska faktorn är minst lika viktig, då alla beslut i slutändan handlar om mer eller mindre kostsamma investeringar. Samtidigt måste det valda produktionssystemet vara så effektivt som möjligt och generera pengar till företaget. Med utgångspunkt från dessa två huvudfaktorer har andra intressanta faktorer tagits fram, som inte påverkar valet av produktionssystem i lika hög grad, men som ändå kan anses vara viktiga i sammanhanget. Forskningsarbetet har bedrivits under 20 veckors tid, där datainsamling har utförts via fallstudier på fyra företag som tillverkar liknande komponenter inom fordonsindustrin. Vidare datainsamling har gjorts genom en litteraturstudie där relevant material för forskningsfrågorna har undersökts. Detta har lett till en samlad kunskapsbas gällande för- och nackdelar med de respektive produktionssystemen samt bakomliggande orsaker till att välja något av dessa produktionssystem. Utifrån det samlade materialet från fallstudierna samt de teoretiska rönen har sedan en tankekarta tagits fram, som visualiserar de avgörande faktorerna som påverkar valet av ett produktionssystem. Denna tankekarta kan företag använda sig av för att på ett strukturerat sätt utvärdera nuvarande produktionssystemet samt planera för framtida förändringar inom produktionen.
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Kubíček, František. "Optimalizace výrobního procesu ve vybraném podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417427.

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This thesis is primary focused on optimization of the production process in a selected company.Teoretical part of this thesis is the result of literature research of Lean Six Sigma, which is mostly used by the company. It is a brief insight to an issue and introduction of the most often used tools from Lean Six Sigma methodology, which were used afterwards in practical part of this thesis. Also there is an introduction of the company and its production portfolio. Crucial part of this thesis is it‘s practical part focused on improving of current situation on the production line with an economical and technical assessment. The main goal was to create more compact and smaller area of product line with lower work in progress.
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Holder, Jitka. "Implementace základních metod štíhlé výroby ve výrobním podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227869.

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The subject of this diploma thesis is to improve the manufacturing of ISO standard valves using basic Lean manufacturing methods. Focus was at two levels, the macro level dealing with auxiliary processes for the whole manufacturing area and the micro level looking at removal of waste in the processes on one particular production cell.
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Hajný, Petr. "Studie optimalizace operativního řízení výroby." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2009. http://www.nusl.cz/ntk/nusl-222080.

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This master’s thesis solves the lean production’s methods implementation in the steps assembly department at the company IFE CR, a. s. The first part of the thesis describes the material and information flows and the most serious problems are identified in this part. On the basis of the analysis the optimized future state is designed and possible proposals of solutions are recommended to do for achieving this state. The solution of implementation of a new steps assembly line is solved in detail in the last part.
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Kalouda, Petr. "Návrh zavedení štíhlé výroby v průmyslovém podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228681.

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Tendency of this diploma thesis is to find cost of economies through the device of lean production. On the basis of more than fourmonth monitoring and classification was specificated the problem, which is solved by implementation devices of lean production. Thanks these devices would be cut the bussines costs and salary and helps to do One piece flow too.
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Škrdla, Michal. "Optimalizace pracoviště montáže v předvýrobě za použití principů štíhlé výroby." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241939.

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This thesis deals with the current state of assembly workplace for prefabrication in selected company. Using lean manufacturing principles it describes and subsequently eliminating all forms of waste that occur in the workplace. Part of the project is to design a new layout of the manufacturing cell, operation balancing and standardize the work of operators in the process. The project aims to achieve the planned production volumes at the same or lower operating costs.
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Books on the topic "One-Piece-Flow"

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One-piece flow: Cell design for transforming the production process. Cambridge, Mass: Productivity Press, 1992.

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Sekine, Ken'ichi. One-piece flow: Cell design for transforming the production process. Portland, Ore: Productivity Press, 1992.

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Protzman, Charles, Joe McNamara, and Dan Protzman. One-Piece Flow vs. Batching. Productivity Press, 2017. http://dx.doi.org/10.1201/b19070.

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Productivity Development Team (Productivity Press), ed. Cellular manufacturing: One-piece flow for workteams. Portland, OR: Productivity Press, 1999.

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Team, Productivity Development. Cellular Manufacturing: One-Piece Flow for Workteams (Shopfloor Series). Productivity Press, 1999.

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Sekine, Kenichi. One-piece Flow: Cell Design for Transforming the Production Process. Productivity Press, 2005.

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Team, Productivity Development. Cellular Manufacturing: One-Piece Flow for Workteams Learning Package (Introduce Production Teams and Leaders to the Power of Cellu). Productivity Press, 1999.

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Gelernter, David. Mirror Worlds. Oxford University Press, 1991. http://dx.doi.org/10.1093/oso/9780195068122.001.0001.

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Technology doesn't flow smoothly; it's the big surprises that matter, and Yale computer expert David Gelernter sees one such giant leap right on the horizon. Today's small scale software programs are about to be joined by vast public software works that will revolutionize computing and transform society as a whole. One such vast program is the "Mirror world." Imagine looking at your computer screen and seeing reality--an image of your city, for instance, complete with moving traffic patterns, or a picture that sketches the state of an entire far-flung corporation at this second. These representations are called Mirror worlds, and according to Gelernter they will soon be available to everyone. Mirror worlds are high-tech voodoo dolls: by interacting with the images, you interact with reality. Indeed, Mirror worlds will revolutionize the use of computers, transforming them from (mere) handy tools to crystal balls which will allow us to see the world more vividly and see into it more deeply. Reality will be replaced gradually, piece-by-piece, by a software imitation; we will live inside the imitation; and the surprising thing is--this will be a great humanistic advance. we gain control over our world, plus a huge new measure of insight and vision. In this fascinating book--part speculation, part explanation--Gelernter takes us on a tour of the computer technology of the near future. Mirror worlds, he contends, will allow us to explore the world in unprecedented depth and detail without ever changing out of our pajamas. A hospital administrator might wander through an entire medical complex via a desktop computer. Any citizen might explore the performance of the local schools, chat electronically with teachers and other Mirror world visitors, plant software agents to report back on interesting topics; decide to run for the local school board, hire a campaign manager, and conduct the better part of the campaign itself--all by interacting with the Mirror world. Gelernter doesn't just speculate about how this amazing new software will be used--he shows us how it will be made, explaining carefully and in detail how to build a Mirror world using technology already available. we learn about "disembodied machines," "trellises," "ensembles," and other computer components which sound obscure, but which Gelernter explains using familiar metaphors and terms. (He tells us that a Mirror world is a microcosm just like a Japanese garden or a Gothic cathedral, and that a computer program is translated by the computer in the same way a symphony is translated by a violinist into music.) Mirror worlds offers a lucid and humanistic account of the coming software revolution, told by a computer scientist at the cutting edge of his field.
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Book chapters on the topic "One-Piece-Flow"

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Wang, Dong-sheng, and An-zhou Li. "A Case Study on One-Piece-Flow Production Mode Designing." In International Asia Conference on Industrial Engineering and Management Innovation (IEMI2012) Proceedings, 373–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38445-5_39.

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"Batching vs. One-Piece Flow." In One-Piece Flow vs. Batching, 165–94. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-13.

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"Light Shined on the Hidden Costs of Batching." In One-Piece Flow vs. Batching, 125–42. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-10.

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"Which Came First, Batching or the Eight Wastes?" In One-Piece Flow vs. Batching, 143–50. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-11.

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"Debunking the Myths." In One-Piece Flow vs. Batching, 151–64. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-12.

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"Are You Ready for One-Piece Flow?" In One-Piece Flow vs. Batching, 195–210. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-14.

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"Appendix." In One-Piece Flow vs. Batching, 211–24. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-15.

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"Index." In One-Piece Flow vs. Batching, 225–30. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-16.

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"The Silent Productivity Killer." In One-Piece Flow vs. Batching, 1–8. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-2.

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"Who Batches … and What’s the Big Deal If It’s “Me?”." In One-Piece Flow vs. Batching, 9–18. Productivity Press, 2015. http://dx.doi.org/10.1201/b19070-3.

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Conference papers on the topic "One-Piece-Flow"

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Han, Pinlian, Tiefeng Chen, and Yesheng Liu. "One-Piece Flow Blade Tuning Process." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95455.

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Blade tuning is one of the key tasks of the modern aircraft engine design. Generally, a couple of vibration modes of a blade need to be tuned by changing the distribution of its mass and/or stiffness to avoid the resonance at some specified rotating speed. The widely used traditional method for blade tuning is a loop-based process. It requires a number of design iterations between the aero engineer and the structure engineer. It usually takes a few weeks or up to a few months, depending on the experiences of the engineers, to reach an acceptable new design. The uncertainties caused by the non-convergence associated with the loop-based iteration process have led to serious issues for both project management and quality control. To avoid the problem, this paper presents a robust one-piece flow process based on the principle of the set-based concurrent engineering and applying the concept of Lean & DFSS. Following the concept of Lean & DFSS process, the one-piece flow blade tuning starts with defining key parameters and objectives. These parameters consist of a set of design variables relevant to both structure and aero disciplines. The variation range of each parameter is predefined by the manufacture feasibility and the past design experiences. Based on the principles of DOE, only a definite number of FEA models are developed and analyzed. From these analysis results, important parameters are selected and a family of response functions of those concerned objectives is formulated. The achievable ranges of the objectives are well determined accordingly. Guided by these functions, the structure and aero engineers are then able to evaluate instantly any new design from the various combinations of the above-mentioned design parameters. A robust design can be obtained from the given sensitivity of the variance of those design parameters. This methodology can be applied to blade and vane tuning for fans, compressors and turbines alike. In this paper an example of the application of this process is presented for a hollow fan blade tuning, which is accomplished within a week as planned. The methodology can be standardized and used in many other related engineering design processes as well.
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Yangpeng, Liu, Xu Guoqiang, Xiang Luo, Ma Jiandong, and Li Haiwang. "Effect of Porosity on Flow Behavior and Heat Transfer Characteristics of Sintered Woven Wire Mesh Structures." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-42734.

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The structure of sintered woven wire mesh is one of classical porous medium. The porosity is one of the major parameters for the porous media. This paper presents the experimental results of the effect of porosity on internal flow behavior and heat transfer characteristics of sintered metal wire mesh structures. All the three test pieces made of stainless steel wires with the same wire diameter (d = 0.14mm) were sintered after woven. One of them was sintered using two sintered metal wire mesh structures with different porosities (55% and 26%) so that the porosity changed along the flow direction. The porosities of the other two test pieces are 55% and 26%, respectively. The experiments were completed with the Reynolds number in the range of 10 to 42. The permeability and inertia coefficient of each test piece were obtained as well as the friction factor. Infrared camera was used to measure the wall temperature of the test pieces to get the Nusselt numbers. The results show that for all test pieces permeability increases as porosity increases, while inertia coefficient shows the opposite trend. Pressure drop of all pieces increases with respect to the mass flow rate. Friction factor decreases as the Reynolds number increases. The curves for test piece #3 fall between those for test piece #1 and #2 and are more close to that for test #2. Nusselt number increases when the Reynolds number keeps arising. However, The Nusselt numbers of the test piece with changed porosity are influenced by the flow direction. There are no significant correlations of the flow behavior and heat transfer characteristics between the test piece with changed porosity and the other two test pieces with constant porosities.
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3

Park, Jun Su, Namgeon Yun, Hokyu Moon, Kyung Min Kim, Sin-Ho Kang, and Hyung Hee Cho. "Thermal Analysis of Cooling System in a Gas Turbine Transition Piece." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45961.

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This paper presents thermal analyses of the cooling system of a transition piece, which is one of the primary hot components in a gas turbine engine. The thermal analyses include heat transfer distributions induced by heat and fluid flow, temperature, and thermal stresses. The purpose of this study is to provide basic thermal and structural information on transition piece, to facilitate their maintenance and repair. The study is carried out primarily by numerical methods, using the commercial software, Fluent and ANSYS. First, the combustion field in a combustion liner with nine fuel nozzles is analyzed to determine the inlet conditions of a transition piece. Using the results of this analysis, pressure distributions inside a transition piece are calculated. The outside of the transition piece in a dump diffuser system is also analyzed. Information on the pressure differences is then used to obtain data on cooling channel flow (one of the methods for cooling a transition piece). The cooling channels have exit holes that function as film-cooling holes. Thermal and flow analyses are carried out on the inside of a film-cooled transition piece. The results are used to investigate the adjacent temperatures and wall heat transfer coefficients inside the transition piece. Overall temperature and thermal stress distributions of the transition piece are obtained. These results will provide a direction to improve thermal design of transition piece.
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4

Chen, Ronghua, Lie Chen, Wenxi Tian, Guanghui Su, and Suizheng Qiu. "Numerical Analysis of the Corium Behavior Within the Fuel Support Piece by MPS." In 2016 24th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icone24-61072.

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In the typical boiling water reactor (BWR), each control rod guide tube supports four fuel assemblies via an orificed fuel support piece in which a channel is designed to be a potential corium relocation path from the core region to the lower head under severe accident conditions. In this study, the improved Moving Particle Semi-implicit (MPS) method was adopted to analyze the melt flow and ablation behavior in this region during a severe accident of BWR. A three-dimensional particle configuration was constructed for analyzing the melt flow behavior within the fuel support piece. Considering the symmetry of the fuel support piece, only one fourth of the fuel support was simulated. The eutectic reaction between Zr (the material of the corium) and stainless steel (the material of the fuel support piece) was taken into consideration. The typical melt flow and freezing behaviors within the fuel support piece were successfully reproduced by MPS method. In all the simulation cases, the melt discharged from the hole of the fuel support piece instead of plugging the fuel support piece. The results indicate that MPS method has the capacity to analyze the melt flow and solidification behavior in the fuel support piece.
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5

Hasselmann, Karsten, Muhammad Aiman Bin Khamalrudin, Stefan aus der Wiesche, and Eugeny Y. Kenig. "Optimization of Piece-Wise Conical Nozzles: Theory and Application." In ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fedsm2018-83055.

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In this contribution, an optimization study based on computational fluid dynamics (CFD) in combination with Stratford’s analytical separation criterion was developed for the design of piece-wise conical contraction zones. The occurrence of flow separation can be formally described by a newly introduced dimensionless separation number. In the optimization process, the risk of flow separation is reduced by minimizing this separation number. It was found that the optimized piece-wise conical nozzle shape did not correspond to a simple geometric approximation of the ideal polynomial shape. In fact, it was beneficial to reduce the deflection in the outlet region for a piece-wise conical nozzle stronger than for a conventional one. In order to validate the new design method, large-scale tests for different nozzle designs were conducted. The measured velocity profiles and wall pressure distributions agreed well with the CFD predictions. The new method was applied for designing the contraction zone of a new closed-loop organic vapor wind tunnel (CLOWT) working at elevated pressure levels.
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6

Vilayanur, Suresh R., and John Battaglioli. "Improvements to an Air Bypass System on a Kawasaki M1A-13X Engine." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53912.

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A new bypass system using an improved design has been fabricated and tested on a Kawasaki M1A-13X gas turbine engine. The engine and catalytic combustor are currently installed at the City of Santa Clara’s Silicon Valley Power municipal electrical generating stations and connected to the utility grid. The use of a bypass system with a catalytic combustor, incorporating the Xonon Cool Combustion™ technology, on an M1A-13X system increases the low emissions load turndown and ambient operating range without impacting engine efficiency. The increased operating range is achieved because the bypass system provides the required adiabatic combustion temperature (Tad) in the combustor’s post-catalyst burn out zone without changing the turbine inlet temperature. A detailed measurement of the pressure drops, in the old bypass system, revealed that there were large flow losses present, particularly in the re-injection spool piece and the extraction plenum. Since it was determined that the spool had the highest pressure loss, this was the component targeted for improvement. The analysis coupled with detailed measurements on the reinjection piece revealed that the effective area actually varied with flow As the flow changed, so did the flow mechanics inside and exiting the spool piece. Therefore, in order to achieve the design target, the flow area of the spool piece had to be optimized at the predicted capacity flow rate. CFD analysis of the spool piece revealed the regions of losses in the re-injection piece. This analysis along with a one-dimensional flow analysis of the entire system enabled the design of new spool re-injection piece. Once the design was completed, the new bypass system was fabricated and tested. Bypass flow capacity was increased by about 22%. This was achieved by alleviating regions of flow losses and also by using a new “scoop” design for the bypass reinjection tubes. As expected, engine turndown capacity and ambient operating range were improved with the new design.
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7

Da Soghe, Riccardo, Cosimo Bianchini, Antonio Andreini, Lorenzo Mazzei, Giovanni Riccio, Alessandro Marini, and Alessandro Ciani. "Thermo Fluid Dynamic Analysis of a Gas Turbine Transition-Piece." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25386.

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The transition-piece of a gas turbine engine is subjected to high thermal loads as it collects high temperature combustion products from the gas generator to a turbine. This generally produces high thermal stress levels in the casing of the transition piece, strongly limiting its life expectations and making it one of the most critical components of the entire engine. The reliable prediction of such thermal loads is hence a crucial aspect to increase the transition-piece life span and to assure safe operations. The present study aims to investigate the aero-thermal behaviour of a gas turbine engine transition-piece and in particular to evaluate working temperatures of the casing in relation to the flow and heat transfer situation inside and outside the transition-piece. Typical operating conditions are considered to determine the amount of heat transfer from the gas to the casing by means of CFD. Both conjugate approach and wall fixed temperature have been considered to compute the heat transfer coefficient, and more in general, the transition-piece thermal loads. Finally a discussion on the most convenient heat transfer coefficient expression is provided.
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8

Belamri, T., P. Galpin, A. Braune, and C. Cornelius. "CFD Analysis of a 15 Stage Axial Compressor: Part II — Results." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68262.

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The flow field of a 15 stage axial compressor is analyzed using a 3-D Navier-Stokes CFD tool. The compressor under investigation is a prototype engine, first compressor version before optimization of the Siemens V84.3A family. The paper describes steady state and transient flow simulations of the entire 15 stages compressor in one computation (not piece by piece). The simulation includes tip gaps, mass bleeds, hub leakage flows, and ranges from single passage to full 360 degrees analysis. The work is divided into two companion papers. The second paper, “CFD Analysis of a 15 Stage Axial Compressor Part II: Results” describes the application of the methods in Part I to the entire 15 stage compressor (Belamri et al, 2005). The flow in the compressor is modeled first with one blade passage per component (periodicity assumed, an interface pitch change model employed). Steady state and transient models are compared. In a second series of computations, all blade passages in 360 degrees are modeled, (no periodicity or pitch change assumptions required), for portions of the compressor. The various simulation approaches are compared to each other, and to experimental data. Good agreement between predictions and experimental results, both in the details of the flow field and the integral prediction of operating range of the compressor, were found.
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9

Hasselmann, Karsten, Felix Reinker, Stefan aus der Wiesche, and Eugeny Y. Kenig. "Numerical Optimization of a Piece-Wise Conical Contraction Zone of a High-Pressure Wind Tunnel." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-15064.

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The Organic Rankine Cycle (ORC) offers a great potential for recovering waste heat and using low-temperature sources for power generation. However, the ORC thermal efficiency is limited by the relatively low temperature level, and, therefore, designing ORC components with high efficiencies and minimized losses is of major importance. Such an approach requires the use of a specially designed closed cascade wind tunnel. This contribution presents the design of the contraction zone shape. The ideal shape can be defined by a sixth order polynomial yielding a smooth curve for the nozzle profile. Due to pressure vessel costs, it is not possible to realize the whole contraction zone as one piece for this wind tunnel. Instead, a piece-wise conical design approach is chosen. Classical nozzle design guidelines do not offer an analytical solution to this flow problem. Therefore, computational fluid dynamics (CFD) in combination with Stratford’s separation criterion is used for an optimization study of a piece-wise conical contraction zone. Different combination of numbers of components, length, and inflection points are investigated. The optimization minimizes the flow deviation of the chosen profile to the optimal shape in two steps: a geometrical approach to the optimal shape and an optimization of the flow field within the contraction zone. The geometrical optimization yields a profile with minor deviation to the ideal shape. For the flow field optimization, a CFD analysis is used to minimize flow separations at the break points between the single conical pieces, especially those at the far end of the contraction zone. All shapes are investigated by Stratford’s separation criterion, which is adopted to conical pieces. The presented analysis indicates that the flow field optimization yields a much better approach for the fluid dynamics of the wind tunnel than the geometrical approach.
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10

Piggush, J. D., and T. W. Simon. "Flow Measurements in a First Stage Nozzle Cascade Having Leakage and Assembly Features: Effects of Endwall Steps and Leakage on Aerodynamic Losses." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-83032.

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This work supports new gas turbine designs for improved performance by evaluating endwall leakage and assembly features in a cascade that is representative of a first stage stator passage. The present paper documents component misalignment and leakage flow effects on the aerodynamic losses within a passage having one contoured and one straight endwall. Steps on the endwall and leakage flows through the endwall can lead to thicker endwall boundary layers, stronger secondary flows and possibly additional vortex structures in the passage. The paper compares losses with steps of various geometries and leakage of various flow rates to assess their importance on aerodynamic losses in this contoured passage. In particular, features associated with the combustor-to-turbine transition piece and the slash-face gap, a gap between two vane segments on the vane platform, are addressed.
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