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Dissertations / Theses on the topic 'Rolling planning'

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1

GOMES, ULISSES ROCHA. "COLD-ROLLING PROCESS OPTIMIZATION BY MEANS EXPERIMENT PLANNING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=10090@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>Esta dissertação teve como objetivo desenvolver um modelo através da técnica de planejamento de experimentos aplicado ao processo de laminação a frio para fabricação de aços especiais utilizados no segmento de mercado de bebidas carbonatadas. O processo consiste na transformação através da redução da espessura de uma bobina de aço laminada a quente e depois decapada para remoção do óxido, em uma bobina com espessura final desejada pelo cliente. Este processo envolve variáveis controláveis e não controláveis, que interagem umas com as
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2

Husseini, Seyed M. M. "Computer aided process planning (CAPP) for flat rolling of copper alloys." Thesis, Aston University, 1989. http://publications.aston.ac.uk/11883/.

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The manufacture of copper alloy flat rolled metals involves hot and cold rolling operations, together with annealing and other secondary processes, to transform castings (mainly slabs and cakes) into such shapes as strip, plate, sheet, etc. Production is mainly to customer orders in a wide range of specifications for dimensions and properties. However, order quantities are often small and so process planning plays an important role in this industry. Much research work has been done in the past in relation to the technology of flat rolling and the details of the operations, however, there is li
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3

Zhu, Xiang. "Replenishment strategy and coordination with quantity flexibility in a rolling-horizon environment /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?IELM%202006%20ZHU.

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4

Pandravada, Ratnam. "Kinematics and motion planning of a rolling disk between two planar manipulators." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178049004.

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5

Lam, Ngoc Tam. "Discrete Path Planning for Convex Polyhedra through Edge-Rolling on a Plane." Thesis, Curtin University, 2022. http://hdl.handle.net/20.500.11937/89601.

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This thesis solved the path-planning problem of the Platonic solids and truncated icosahedron through edge-rolling on a plane with obstacle avoidance, which hitherto had not been solved. The BFS-based algorithm found the shortest paths for the Platonic solids on a prescribed plane while the RRT-based algorithm generated feasible paths with efficient tree exploration on a non-prescribed plane. The results can be readily applied to a variety of applications: path planning for general convex polyhedral, dexterous robotic in-hand manipulation, video games, and locomotion of polyhedral tensegrity r
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6

Ventola, David P. "Order combination methodology for short-term lot planning at an aluminum rolling facility." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13441.

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7

Reiners, Christoph [Verfasser], and Alf [Akademischer Betreuer] Kimms. "Constraint Programming-Based Heuristics for the Multi-Depot Vehicle Routing Problem with a Rolling Planning Horizon / Christoph Reiners. Betreuer: Alf Kimms." Duisburg, 2016. http://d-nb.info/1081899670/34.

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8

Manríquez, Peñafiel Ronald. "Local approximation by linear systems and Almost-Riemannian Structures on Lie groups and Continuation method in rolling problem with obstacles." Electronic Thesis or Diss., université Paris-Saclay, 2022. https://theses.hal.science/tel-03716186.

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L'objectif de cette thèse est d'étudier deux sujets en géométrie sub-Riemannienne. D'une part, l'approximation locale d'une structure presque riemannienne aux points singuliers, et d'autre part, le système cinématique d’une variété à 2 dimensions roulant (sans torsion ni glissement) sur le plan euclidien avec des régions interdites. Une structure presque riemannienne de dimension n peut être définie localement par n champs vectoriels satisfaisant la condition de rang de l'algèbre de Lie, jouant le rôle d'un cadre orthonormé. L'ensemble des points où ces champs vectoriels sont colinéaires est a
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9

Tréfond, Sabine. "Planification robuste des roulements d’engins dans le domaine ferroviaire." Thesis, Paris, CNAM, 2014. http://www.theses.fr/2014CNAM0921/document.

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Cette thèse est consacrée à la planification robuste du matériel roulant ferroviaire dans un contexte de transport de voyageurs régional. Il s'agit de déterminer pour chaque engin une suite de trajets à réaliser sur une période donnée de façon à résister au mieux aux aléas pouvant apparaître en opérationnel. Dans ce but, nous proposons une définition et une caractérisation de la robustesse par des indicateurs propres au contexte d'étude. Nous abordons le problème par une approche structurelle différente des approches robustes classiques qui permet d'agir sur la structure d'une solution en fonc
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10

Kanmert, Jacob, Joakim Lindh, and Joel Welin. "Prestationsmätning i komplexa projekt : - En fallstudie på Saab Aeronautics." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-75059.

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Organisationer med komplexa projekt som sträcker sig över ett flertal år finner svårigheter att förhålla sig till projektens fördefinierade parametrar tid, kostnad och omfattning. Skenande kostnader och förseningar är vanligt förekommande i dessa typer av projekt, då projekten omfattar ett samspel av ett flertal aktiviteter och där projektets omfattning ofta förändras. Det finns metoder som verksamheter kan tillämpa för att kontrollera ovannämnda parametrar och i ett tidigt skede kunna identifiera när någon av parametrar tenderar att överskridas. En metod som styrker presta
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11

Cavagnini, Rossana. "Stochastic programming models for distribution logistics, bikesharing and production management." Doctoral thesis, Università degli studi di Bergamo, 2019. http://hdl.handle.net/10446/128677.

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In this thesis, we study four different problems, all characterized by the presence of uncertainty. The first two of them deal with a distribution system in which transshipment and/or backordering are allowed. For the first problem, we propose a two-stage stochastic program, we provide complexity results and we show that considering uncertainty explicitly in the model leads to better solutions with respect to the ones provided by the corresponding deterministic program, especially if limited recourse actions are admitted. For the second distribution problem, we propose a multi-stage stochastic
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12

Henttu-Aho, T. (Tiina). "The emerging practices of modern budgeting and the role of controller." Doctoral thesis, Oulun yliopisto, 2016. http://urn.fi/urn:isbn:9789526214399.

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Abstract The presumed dominance of the traditional annual budgeting process as a cornerstone of management control has been called into question in recent years. Various new developments in budgeting have been seen replacing or complementing organisations’ conventional budgeting. The dissertation provides a comprehensive picture of these new budgetary practices and their implications for management accounting work, through investigation of the fragmentation among various purposes of budgeting and of the ways in which the role of controller and new budgetary practices can complement each other.
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13

Tréfond, Sabine. "Planification robuste des roulements d’engins dans le domaine ferroviaire." Electronic Thesis or Diss., Paris, CNAM, 2014. http://www.theses.fr/2014CNAM0921.

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Cette thèse est consacrée à la planification robuste du matériel roulant ferroviaire dans un contexte de transport de voyageurs régional. Il s'agit de déterminer pour chaque engin une suite de trajets à réaliser sur une période donnée de façon à résister au mieux aux aléas pouvant apparaître en opérationnel. Dans ce but, nous proposons une définition et une caractérisation de la robustesse par des indicateurs propres au contexte d'étude. Nous abordons le problème par une approche structurelle différente des approches robustes classiques qui permet d'agir sur la structure d'une solution en fonc
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14

Голоскокова, Анна Олександрівна. "Моделі та інформаційна технологія планування покращення якості процесу розробки програмного забезпечення". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38718.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13.06 – інформаційні технології. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. У дисертаційній роботі вирішено важливу науково-практичну задачу підвищення якості процесу розробки програмного забезпечення на основі моделі зрілості CMMІ з використанням ковзного планування. Виконано аналіз сучасного стану проблем підвищення якості ПР ПЗ. З урахуванням наведених проблем поставлено задачу розробки методу планування покращення якості ПР ПЗ, який базується на ковзному пла
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Голоскокова, Анна Олександрівна. "Моделі та інформаційна технологія планування покращення якості процесу розробки програмного забезпечення". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38692.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13.06 – інформаційні технології. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. У дисертаційній роботі вирішено важливу науково-практичну задачу підвищення якості процесу розробки програмного забезпечення на основі моделі зрілості CMMІ з використанням ковзного планування. Виконано аналіз сучасного стану проблем підвищення якості ПР ПЗ. З урахуванням наведених проблем поставлено задачу розробки методу планування покращення якості ПР ПЗ, який базується на ковзному план
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16

Lucas, Rémi. "Planification adaptative des ressources ferroviaires." Electronic Thesis or Diss., Institut polytechnique de Paris, 2020. https://theses.hal.science/tel-03009036.

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La planification ferroviaire consiste à établir en amont des circulations un plan de transport spécifiant l’emploi du temps de chaque ressource : les sillons, qui correspondent aux horaires des trains, les matériels roulants devant assurer leur circulation, ainsi que les agents à bord de ces trains. Compte tenu de la complexité du système ferroviaire, cette planification est effectuée potentiellement plusieurs années à l’avance, où un plan de transport précis est établi.Or, une fois qu’une ressource a été planifiée, il est parfois nécessaire d’adapter le plan de transport et donc de le changer
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17

Nguyen, Phuong Loan. "Planification tactique de la production : approche hiérarchisée pour une classe d'entreprises de sous-traitance et application au cas d'une entreprise de laminage à froid." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10072.

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Dans cette these, nous considerons le probleme de la planification de la production pour une classe d'entreprises de sous-traitance. Celles-ci peuvent avoir une clientele tres diversifiee, ce qui implique notamment une grande variete des produits fabriques. Nous nous interessons en particulier au cas d'une entreprise de siderurgie, dont l'activite est le laminage a froid de feuillards d'acier. Etant donnee la complexite d'un tel probleme, nous avons envisage une approche hierarchisee, apres avoir defini des niveaux d'agregation sur les produits et sur les equipements. L'une des principales pre
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18

Liu, Kuo-Chu, and 劉國著. "Development of Optimization Model for Rolling Stock Utilization Planning." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/23033256402487037453.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>100<br>Rolling stock is one of the most expensive assets of a railway agency or company. Therefore, efficient utilization of rolling stock is a very important objective pursued in practice. This study proposed a Rolling Stock Utilization Planning Tool to improve the efficiency of rolling stock usage by creating a utilization schedule to cover the trips in the timetable with the consideration of practical requirements, such as inspection regulation, depot capacity, rolling stock characteristics, and most important of all, the idea of schedule circulation. Past studie
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19

林志鴻. "The material planning model of component commonality using rolling schedules in assembly industries." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/28443051219065846528.

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20

Tsao, Chia-Hsin, and 曹家馨. "A Study of Rolling Stock Maintenance System Planning of TaoYuan International Airport MRT." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/00259858705231574643.

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碩士<br>國立交通大學<br>管理學院碩士在職專班運輸物流組<br>97<br>It’s the interantioal railway transportation trend in decades; the railway transportation system provides the passengers delivery service from airport area access to the main city area. The airport express is mainly provide the international business traveller a reliable transportation service to access from/to the airport area, such as Japan Narita Express, Hongkong airport express, etc. The airport express is basically using the unique railway access right and will not be affected by the roadway traffic. Taiwan government had approved the TTY Internat
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Lin, Chun-Yen, and 林軍諺. "Applying Rolling Schedule on Multi-Period, Multi- Product Production Planning Considering of Safety Stock." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/43943619822213103037.

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碩士<br>國立臺灣大學<br>商學研究所<br>103<br>Cost management is important to generate higher profit for companies in intense competitive environments. Inventory management is especially vital for manufacturers, and a good inventory policy will not only influence cost but also customer service. While customer service levels will rise, it will also cause huge management costs. However, less inventory will easily generate a higher probability of backlog. Production planning provides factories a method to effectively plan the production units under limited capacity and meanwhile calculate the best inventory le
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Cowling, Peter I. "A Flexible Decision Support System for Steel Hot Rolling Mill Scheduling." 2003. http://hdl.handle.net/10454/3193.

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No<br>A steel hot rolling mill subjects steel slabs to high temperatures and pressures in order to form steel coils. We describe the scheduling problem for a steel hot rolling mill. We detail the operation of a commercial decision support system which provides semi-automatic schedules, comparing its operation with existing, manual planning procedures. This commercial system is currently in use in several steel mills worldwide. The system features a very detailed multiobjective model of the steel hot rolling process. This model is solved using a variety of bespoke local and Tabu search heuristi
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23

Huang, Po-wen, and 黃柏文. "Development of Decision Support Framework and Models for Synchronized Resource Planning on Railway Route and Rolling Stock Upgrade." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/05715805213381126559.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>100<br>The most common, near-term approach to upgrading railway corridors to achieve high speeds is by incremental improvement. Existing infrastructure or rolling stock can be improved in various ways to allow for increasing speeds and reducing travel time along a route. Each track section has a characteristic set of opportunities for increasing speed and their corresponding effect on travel time reduction, along with an associated set of costs. Similarly, each type of rolling stock has the potential to increase operational speed and reduce travel time, correspon
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Li, Tzu-chin, and 李志欽. "A Study of the Optimal Production Planning and Product Mix Problems for Hot Rolling Wire Rods and Deformed Bars Mill in a Steel Plant." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/31244162572531813296.

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碩士<br>國立中正大學<br>企業管理所<br>97<br>The steel industry is the foundation of all industries, it is the basic industry of the national construction and the national defense industry, and it has also being called the mother of industries. Due to the consideration of economic development and security reason of the national defence, the governments of most countries often taking high tariff, quota to limit or classifying as the specific project of importing etc., in order to protect the development of the national steel industry. The production facilities, equipments, raw materials and energy consumpt
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Alves, Cátia Filipa Veiga. "Desenvolvimento de um modelo de gestão em tempo real para empresas virtuais." Master's thesis, 2011. http://hdl.handle.net/1822/16422.

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Dissertação de mestrado integrado em Engenharia e Gestão Industrial<br>Hoje em dia tem-se a perceção do crescimento das empresas como um fator importante no desenvolvimento da economia. Como tal, Associações e Projetos têm vindo a desenvolver projetos traçados para o que as empresas necessitam, apontando para a crescente aposta em sistemas de gestão em tempo real. Nesse sentido nesta dissertação é proposta a investigação sobre o desenvolvimento de um modelo de gestão em tempo real para empresas virtuais (empresas em rede), com vista a redução do tempo de resposta ao mercado. Além deste m
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Gemieux, Géraldine. "Planification de la récolte et allocation des produits aux usines." Thèse, 2009. http://hdl.handle.net/1866/3515.

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L’industrie forestière est un secteur qui, même s’il est en déclin, se trouve au cœur du débat sur la mondialisation et le développement durable. Pour de nombreux pays tels que le Canada, la Suède et le Chili, les objectifs sont de maintenir un secteur florissant sans nuire à l’environnement et en réalisant le caractère fini des ressources. Il devient important d’être compétitif et d’exploiter de manière efficace les territoires forestiers, de la récolte jusqu’à la fabrication des produits aux usines, en passant par le transport, dont les coûts augmentent rapidement. L’objectif de ce mémoire
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Gémieux, Géraldine. "Modèles et méthodes pour la planification de la récolte forestière." Thèse, 2015. http://hdl.handle.net/1866/13712.

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Ce projet de recherche a été réalisé avec la collaboration de FPInnovations. Une part des travaux concernant le problème de récolte chilien a été effectuée à l'Instituto Sistemas Complejos de Ingeniería (ISCI) à Santiago (Chili).<br>La planification de la récolte forestière comporte différents niveaux de planification selon l'horizon de temps du problème et la nature des décisions à prendre. Dans un premier temps, nous nous intéressons à un problème de planification annuelle de la récolte, à mi-chemin entre la planification tactique et opérationnelle. Ce problème appliqué à l'exploitation fo
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