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Dissertations / Theses on the topic 'Process of Simulation'

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1

Bramler, Arild. "Towards improved simulation process capabilities : A simulation process maturity model." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-44355.

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Purpose – The purpose of this thesis is to present the result of simulation process maturity (SPM) assessments in the pharmaceutical and manufacturing industry using a process maturity model derived from empirical research. The model is used to benchmark an organisations simulation capability and to apply the results of the assessment to develop a road map for implementing simulation process improvement as well as integration initiatives within the organisation. Methodology approach – This is a survey-based research on benchmarking simulation process in the industry. The SPM model was adopted
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Buttar, Alistair George. "CMOS process simulation." Thesis, University of Edinburgh, 1986. http://hdl.handle.net/1842/13282.

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Ahmed, Rizwan. "A rapid simulation modelling process for novice software process simulation modellers." Thesis, University of Hertfordshire, 2005. http://hdl.handle.net/2299/14298.

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In recent years, simulation modelling of software processes have has promoted as a tool to understand, study, control, and manage software development processes. Claims have been made that simulation models are useful and effective at gaining insight into software development processes. However, little has been said about the process of developing simulation models for software engineering problems. Simulation modelling is a young discipline in software engineering. Consequently, many number software process simulation modellers are thought to be novices. The simulation modelling process is be
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4

Runge, Torsten, and Kondragunda Narendra. "Teamcenter Simulation Process Management." Technische Universität Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A21532.

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Manage your simulation processes, data, tools and workflows The pressure to shorten time-to-market while improving product performance and quality is driving the increased use of simulation throughout the product lifecycle. However, without some form of simulation data management, simulation itself can become a process bottleneck. The Teamcenter simulation process management solution has been specifically designed to help you get control of your simulation data and processes in the context of an overall product lifecycle management (PLM) system. With Teamcenter, you can avoid common problems s
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Valaškevičius, Šarūnas. "Simulation tool for hybrid process algebras." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100615_084732-33186.

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A hybrid system is a system that presents both continuous time evolution and discrete events. To define and analyse such systems prior to building actual products, a hybrid process algebra can be employed. Simulation is often used as a convenient way for a better understanding of the systems’ evolution and its potential weaknesses. This study aims at creating a general architecture of the simulation tool for hybrid process algebras, together with a practical implementation of Behavioural Hybrid Process Calculus simulator. For achieving this objective, a list of tasks has been composed, includi
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Papageorgiou, Christos Panagiotis. "Process simulation of agricultural products." Thesis, Middlesex University, 2005. http://eprints.mdx.ac.uk/2664/.

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Simulation has been widely used many years ago by chemical engineers to represent several processes and operations, existing in industries of chemical engineering interest. Flow-sheeting calculations is a kind of simulation for preliminary evaluation of different processes. Flow-sheet itself is a key document for the evaluation, design and analysis of processing systems. It shows the processing units arrangement and the streams connecting them, the quantities and compositions at every point of the flow-sheet and the operating conditions (phase, temperature, pressure, enthalpy etc.). Manual flo
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7

Gencoglu, Ahmet. "Physics based turning process simulation." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/36886.

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The manufacturing planning of parts is currently based on experience and physical test trials. The parts are modeled, and Numerically Controlled (NC) tool paths are generated in Computer Aided Manufacturing (CAM) environment. The NC programs are physically tested, and if the process faults are found, the NC program is re-generated in the CAM environment. The objective of this thesis is to develop Virtual Turning System that predicts the part machining process ahead of costly physical trials. Tool–workpiece engagement geometry is calculated along the tool path by a proposed polycurve method. Th
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8

Flitta, Isaac. "Simulation of aluminium extrusion process." Thesis, Bournemouth University, 2004. http://eprints.bournemouth.ac.uk/314/.

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The aim of this thesis is to model the extrusion process conditions for some aluminium alloys using Finite Element Modelling (FEM) program. All the simulations were performed with the implicit finite element code FORGE20 (2-D) and FORGE3® (3-D). In this work only the alloys AA2024, AA2014, Al-1 %Cu and AA6063 where experimental work is available were considered. The FORGE2® program was used to investigate and select an appropriate flow stress constitutive equation to describe the material behaviour to model the process conditions. The extrusion pressure and the temperature rise were predicted
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9

Nurse, O. A. "Material logistics and process simulation." Thesis, University of Portsmouth, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382604.

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10

Cherif, Redha. "Software Process Simulation Modelling : A Multi Agent-Based Simulation Approach." Thesis, Blekinge Tekniska Högskola, Avdelningen för programvarusystem, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5787.

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In this research we present one of the first actual applications of Multi Agent-Based Simulation (MABS) to the field of software process simulation modelling (SPSM). Although a few previous applications were attempted, we explain in our literature review how these failed to take full advantage of the agency paradigm. Our research resulted in a model of the software development process that integrates performance, cognition and artefact quality, for which we built a common simulation framework to implement and run MABS and System Dynamics (SD) simulators upon the same integrated models. Althoug
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11

Zelenka, Stefan. "Stress-related problems in process simulation /." Zürich, 2001. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14220.

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12

Ravichandran, Karthik. "Nano-scale process and device simulation." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1125340288.

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13

Arikan, Merve. "Systems Engineering Process Modeling And Simulation." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615164/index.pdf.

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In this study, an approach is proposed to model and simulate the systems engineering process of design projects. One of the main aims is to model the systems engineering process, treating the process itself as a complex system. A conceptual model is developed as a result of a two-phase survey conducted with systems engineers. The conceptual model includes two levels of activity networks. Each first level systems engineering activity has its own network of second level activities. The model is then implemented in object oriented modeling language, namely SysML, using block definition diagrams a
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14

Mahon, Michael John. "Dynamic process simulation of zinc electrowinning." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/56366.

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Zinc electrowinning is the final aqueous processing step in the production of metallic zinc. It is a complex process that is difficult to control and monitor. This thesis seeks to develop a time transient process simulation of zinc electrowinning to aid in controlling and monitoring. Based on reported models of zinc electrowinning, and other electrowinning processes, a dynamic simulation of a zinc electrowinning cell capable of representing time-based effects was developed. The new model incorporates more sophisticated estimations of electrolyte activity using Pitzer parameters. Further, recen
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15

Ruhweza, Moses. "Computer simulation of Dinitrotoluene Nitration Process." Thesis, Karlstads universitet, Avdelningen för kemiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-66259.

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p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.5px Garamond} This paper presents an approach for modelling a commercial dinitrotoluene (DNT) production process using the CHEMCAD simulation software. A validation of the model was performed based on results of an experimental study carried out at Chematur Engineering AB, Sweden.  Important parameters such as fluid properties, temperature profile and other operating conditions for CHEMCAD steady state model were selected so as to obtain the crude DNT yield as well as the acid –and organic phase compositions within the same range as the reference
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16

Hock, Kuah Teng. "Numerical simulation of sand casting process." Ohio : Ohio University, 1987. http://www.ohiolink.edu/etd/view.cgi?ohiou1183046313.

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17

Russell, L. W. "Computer simulation of process plant availability." Thesis, Teesside University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328836.

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18

Yang, Xiaoyan. "Dynamic simulation of 3D weaving process." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/18970.

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Doctor of Philosophy<br>Department of Mechanical and Nuclear Engineering<br>Youqi Wang<br>Textile fabrics and textile composite materials demonstrate exceptional mechanical properties, including high stiffness, high strength to weight ratio, damage tolerance, chemical resistance, high temperature tolerance and low thermal expansion. Recent advances in weaving techniques have caused various textile fabrics to gain applications in high performance products, such as aircrafts frames, aircrafts engine blades, ballistic panels, helmets, aerospace components, racing car bodies, net-shape joints and
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19

Bennett, Donald John. "Semiconductor process modelling." Thesis, University of the West of Scotland, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259677.

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20

Farrokh, Mohammad. "Thermodynamic process modeling and simulation of a diaspore bauxite digestion process." Licentiate thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-19001.

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Bauxite ores which originated from separate mines have different characteristics, i.e. each bauxite ore has its own individual specifications. Jajarm bauxite is of the diaspore-chamosite type and its alumina to silica mass ratio is lower than other diaspore ores. Diaspore bauxite digestion in comparison with other bauxite types has more complicated operational conditions and requires higher temperature, pressure and caustic concentration.  The present study was thus performed on the above mentioned digestion process and include two parts. First, the behavior of some key parameters of the proce
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21

SESHADRI, DILIP. "AN INVESTIGATION OF THE SIMULATABILITY OF ITERATIVE METHODS FOR ANALYZING ANALOG CIRCUIT BEHAVIOR." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1175881373.

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22

Mayavaram, Ravisankar S. "Modeling and simulation of film blowing process." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2454.

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Film blowing process is a flexible mass production technology used for manufacturing thin polymeric films. Its flexibility in using an existing die to produce films of different width and thickness, just by controlling process conditions such as, extrudate velocity, excess pressure, and line speed, makes it an attractive process with less capital investment. Controlling the process conditions to obtain a stable bubble, however, is not a trivial task. It is a costly trial and error procedure, which could result is a large wastage of material and other resources. Hence, it is necessary to develo
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23

Flanagan, Tomás Leo. "Supporting design planning through process model simulation." Thesis, University of Cambridge, 2007. https://www.repository.cam.ac.uk/handle/1810/244879.

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Modelling and analysis of design processes is non-trivial and predicting the behaviour of such systems is especially challenging. Nonetheless, the effective planning of design projects is critical for many engineering companies. Based on the findings from a thorough literature review and an extensive industrial case study, this thesis identified four themes on which subsequent process analyses focused: modelling and representation; scale and connectivity; rework, and the product-process link. The case study also provided a deeper understanding of the practical challenges of planning in industr
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24

Huang, Xin. "Simulation of biochemical reaction and biophysical process." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491955.

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The density functional theory (DFT) and molecular mechanics (MM) are used to study biochemical reactions and biophysical processes. The mechanism of DNA backbone hydrolysis by specific enzyme is studied. It is found that the Mg2 + cation can polarize the breaking P-O bond while a histidine acts as both the stabilizer and activator of the attacking water. Moreover, the water dissociation and formation ofnew bond should be coinstantaneous. In order to understand the nitrosylation ~f target thiol group in cells, we study oxygen-dependent thiol nitrosylating pathway. A general trend of the mixed p
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25

Triandafilidi, Vasilii. "Molecular dynamics simulation of polymer crystallization process." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54825.

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Large scale molecular dynamics simulations were carried out to study the kinetics of polymer melt crystallization. A coarse-grained model CG-PVA developed by Meyer and Muller-Plathe is applied. A new algorithm for analyzing crystallization is proposed. It is based on the alignment of individual chains which speeds up previous similar calculation by a factor of ten. Moreover, it is found to be more suitable for investigating chain crystallinity in polydisperse systems. Different thermodynamic protocols of polymer crystallization were studied: deep quench, shallow quench and cooling with various
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26

Xie, Jing. "Simulation of cold spray particle deposition process." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0044/document.

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La projection à froid est une technologie en plein essor pour le dépôt de matériaux à l'état solide. Le procédé de dépôt des particules par pulvérisation à froid est simulé par la modélisation de l'impact à haute vitesse de particules sphériques sur un substrat plat dans diverses conditions. Pour la première fois, nous proposons une approche numérique par couplage Euler-Lagrange (CEL) afin de résoudre ce problème à haute vitesse de déformation. Les capacités de l'approche numérique CEL pour la modélisation du processus de dépôt de projection à froid sont évaluées par une étude paramétrique de
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27

Lin, Lin. "Numerical simulation of pressure swing adsorption process." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq24184.pdf.

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28

El-Mounayri, Hazim A. "Generic solid modelling based machining process simulation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ30083.pdf.

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Pantea, Radu Catalin. "Wood cutting system, modelling and process simulation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0020/MQ47226.pdf.

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30

Zhou, Weining. "Analyzing computer simulation experiments using process convolutions /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2006. http://uclibs.org/PID/11984.

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31

Park, Joon Boo. "Computer simulation of the hammer forging process." Ohio : Ohio University, 1986. http://www.ohiolink.edu/etd/view.cgi?ohiou1183145186.

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32

Lupa, Joseph. "Simulation of national intelligence process with fusion." Wright-Patterson AFB : Air Force Institute of Technology, 2008. http://handle.dtic.mil/100.2/ADA480399.

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Thesis (M.S. in Operations Research) --Air Force Institute of Technology, 2008.<br>Title from title page of PDF document (viewed on Aug 7, 2008). "AFIT/GOR/ENS/08-13" Includes bibliographical references.
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33

Alvelid, Jonatan. "r-Process Simulation and Heavy-Element Nucleosynthesis." Thesis, KTH, Fysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150101.

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r-process, short for rapid neutron capture process, is a nucleosynthesis process taking place on short time scales. Rapid neutron captures produce less and less stable neutron-rich nuclei which in turn beta minus decays when the probability for beta decay is higher than the probability for neutron captures, upon which more neutrons are captured and the process repeats itself, creating r-process paths. Very neutron-rich heavy elements are the product of this process taking place at explosive astrophysical sites with high neutron flux. Simulations of r-processes are important for finding out the
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34

CIPRIANO, LUIZ CARLOS. "NUMERICAL SIMULATION OF THE CONTINUOUS CASTING PROCESS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1988. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33279@1.

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O processo de lingotamento contínua de metais é simulado numericamente. Placas ou tarugos metálicos são produzidos continuamente, mantendo-se o escoamento do material através do molde. A frente de solidificação depende da velocidade de retirada de material e da refrigeração imposta na superfície do lingote. A posição da interface líquido-sólido e o campo de temperaturas na região sólida são determinados, e consideram-se os efeitos da velocidade na curvatura da interface. É analisado um modelo retangular bi-dimensional e a equação da energia é resolvida utilizando-se o método numérica de difer
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35

Zhang, Jie. "Numerical Simulation of Flow in Ozonation Process." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5161.

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In the last two decades, Computational Fluid Dynamics (CFD) has shown great potential as a powerful and cost-efficient tool to troubleshoot existing disinfection contactors and improve future designs for the water and wastewater treatment utilities. In the first part of this dissertation two CFD simulation methodologies or strategies for computing turbulent flow are evaluated in terms of the predicted hydraulic performance of contactors. In the LES (large eddy simulation) methodology, the more energetic, larger scales of the turbulence are explicitly computed or resolved by the grid. In the le
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36

Joshi, R. R. "Simulation and optimization of chemical process plants." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2014. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2229.

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37

Qudrat, E. Khuda Sayed. "Simulation of high purity oxygen separation process." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2024. https://ro.ecu.edu.au/theses/2825.

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Processes for separating oxygen are crucial to many other processes, primarily due to the relevance of its component gases in many industrial processes. Nitrogen is used in the petrochemical industry, while argon is used as an inert gas mixture in welding and other electrical gadgets such as the light bulb. Argon, Oxygen (O2) and Nitrogen (N2) are all used in medical and industrial processes, including integrated gasification combined cycle (IGCC), oxyfuel combustion, ammonia, glass, and metal. This thesis has summed up all the stages of the ultra-high purity oxygen separation process in detai
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38

Hahn, Christoph [Verfasser]. "A Simulation Approach of Permeability Prediction for RTM Process Simulation / Christoph Hahn." München : Verlag Dr. Hut, 2015. http://d-nb.info/1067708391/34.

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39

Syam, Bustami. "Analysis and computer simulation of tube extrusion process." Ohio : Ohio University, 1990. http://www.ohiolink.edu/etd/view.cgi?ohiou1183473897.

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40

Falcigno, Steven V. "The Simulation Engine, a platform for developing industrial process knowledge-based discrete event simulations." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0009/MQ33370.pdf.

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41

Major, Jacqueline. "A solution concentration model for CIP simulation." Thesis, Cape Technikon, 2001. http://hdl.handle.net/20.500.11838/871.

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Thesis (MTech (Chemical Engineering))--Cape Technikon, Cape Town, 2001.<br>Carbon-in-pulp technology is used extensively in the mining industry to recover metal cyanides from solution. Also this technology has found increasing application in the gold mining sector, replacing the less efficient zinc precipitation procedure. The extensive use of carbon in such processes have prompted many researchers to investigate the mechanism of metal cyanide adsorption. Not only has this provided many viable theories in the understanding of the mechanism, but has also led to an improved understanding of
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42

Sneesby, Martin G. "Simulation and control of reactive distillation." Thesis, Curtin University, 1998. http://hdl.handle.net/20.500.11937/2555.

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Reactive distillation has enormous potential for the economical synthesis of tertiary ethers. Methyl tert-butyl ether (MTBE) has been commercially produced with this technology since the early 1980s and it appears that the process also has application for Ethyl tert-butyl ether (ETBE) and other ethers. However, the combination of reaction and distillation in a single unit operation produces a process complexity that inhibits expeditious design and tight control, and presents a technology risk for potential developers. This particularly applies to hybrid reactive distillation where both reactiv
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43

Spirito, Mario. "Simulation, control and optimization of asphalt drying process." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Il documento presentato punta alla descrizione del lavoro svolto dal DEI in collaborazione con l'azienda Marini-Fayat la quale ha sviluppato un prototipo innovativo per l'essiccazione di asfalti. L'obiettivo di tale collaborazione ha riguardato principalmente attività di studio della letteratura circa il processo di essiccazione degli asfalti, la sua modellazione e il controllo dell'intero impianto rispettandone i vincoli imposti. Il lavoro si svolto nel seguente modo, dopo lo studio della letteratura sull'argomento, due tipologie di modello sono state sviluppate: un "Evaluation model" che d
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44

Sponton, Luca. "From manufacturing variability to process-aware circuit simulation /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17444.

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Pop, Serban Rares. "Modeling and simulation of the float glass process." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976517108.

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46

Silva, Molina Enrique. "Evaluationg IT investments : a business process simulation approach." Licentiate thesis, KTH, Electrical Systems, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1579.

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<p>Information technology (IT) is becoming the primary factordetermining the survival of most organizations. The differenttypes of systems and the wide range of objectives suggest thatdiverse evaluation methods are needed. There is a critical needfor a new approach to managing IT investments, and solving theinformation paradox should be a business imperative for allmanagers today.</p><p>Evaluating IT investments introduces different types ofproblems that investment in traditional assets does notconsider. The focal point shifts from measuring hard andquantifiable benefits that appear on a firm’
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Lindgren, Michael. "Modelling and simulation of the roll forming process /." Luleå : Luleå University of Technology, 2005. http://epubl.luth.se/1402-1757/2005/040.

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48

Srinivasan, Madhav. "Finite element simulation of laser shock peening process." Cincinnati, Ohio : University of Cincinnati, 2008. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1204910079.

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Thesis (M.S.)--University of Cincinnati, 2008.<br>Advisor: Dong Qian Dr Title from electronic thesis title page (viewed April 23, 2008). Includes abstract. Keywords: "Laser Shock Peening; Residual stress". Includes bibliographical references.
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49

Merdol, Doruk Sūkrū. "Virtual three-axis milling process simulation and optimization." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/658.

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The ultimate goal in the manufacturing of a part is to achieve an economic production plan with precision and accuracy in the first attempt at machining. A physics-based comprehensive modeling of the machining processes is a fundamental requirement in identifying optimal cutting conditions which result in high productivity rates without violating accuracy throughout the part production process. This thesis presents generalized virtual simulation and optimization strategies to predict and optimize performance of milling processes up to 3-axis. Computationally efficient mathematical models are
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Zhao, Jian 1963. "Simulation of boiler drum process dynamics and control." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61104.

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This thesis presents a mathematical process model for the dynamic analysis of a vertical reheat boiler and the application of this model to the optimal design of a drum water level controller. A numerical finite difference technique is used to formulate this model.<br>The control system contains two loops, a feedfoward loop using the steam flow and drum pressure signals as the input and a feedback loop using the deviation of the measured drum water level from its set point as an input. The feedback loop is an incremental PID controller with an adjustable proportional gain. The feedfoward loop
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