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Dissertations / Theses on the topic 'PTM MODEL'

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Published: 11 September 2023
Last updated: 31 July 2025

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1

li, yiwen. "Predicting Hearing Loss Using Auditory Steady-State Responses." Digital WPI, 2009. https://digitalcommons.wpi.edu/etd-theses/84.

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Auditory Steady-State Response (ASSR) is a promising tool for detecting hearing loss. In this project, we analyzed hearing threshold data obtained from two ASSR methods and a gold standard, pure tone audiometry, applied to both normal and hearing-impaired subjects. We constructed a repeated measures linear model to identify factors that show significant differences in the mean response. The analysis shows that there are significant differences due to hearing status (normal or impaired) and ASSR method, and that there is a significant interaction between hearing status and test signal frequency
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2

Abdrachimovas, Ruslanas. "Objektinių modelių transformacijų realizavimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2004. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2004~D_20040531_150600-88877.

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Presented work covers one of the most important areas of OMG’s model driven architecture (MDA) – problems of object model transformations. Based on research of OMG specifications and other sources, author analyzes transformation process, states importance of modeling and metamodeling for designing of UML like modeling languages. Research work describes designed metamodels of experimental modeling languages: “Entity – process”, Java metamodel and relational metamodel. Author gives a short overview of model editors for these languages, created using EMF framework tools. Based on analysis, author
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3

Martinez, Baca Velasco Carlos. "Computational model of a PEM fuel cell." Thesis, Imperial College London, 2007. http://hdl.handle.net/10044/1/11519.

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4

Bi, Wu. "PEM fuel cell catalyst degradation mechanism and mathematical modeling." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/29756.

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Thesis (Ph.D)--Chemical Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Fuller, Thomas; Committee Co-Chair: Deng, Yulin; Committee Member: Gallivan, Martha; Committee Member: Kohl, Paul; Committee Member: Singh, Preet. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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5

McGrady, Christopher Dwain. "Linking Rheological and Processing Behavior to Molecular Structure in Sparsely-Branched Polyethylenes Using Constitutive Relationships." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/37924.

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This dissertation works towards the larger objective of identifying and assessing the key features of molecular structure that lead to desired polymer processing performance with an ultimate goal of being able to tailor-make specific macromolecules that yield the desired processing response. A series of eight well-characterized, high-density polyethylene (HDPE) resins, with varying degrees of sparse long chain branching (LCB) content, is used to study the effect of both LCB content and distribution on the rheological and commercial processing response using the Pom-pom constitutive relationshi
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6

Sobral, Júnior Mário Alves. "Proposta de modelo para analisar desempenho do Programa de CCQ de uma empresa de eletroeletrônico do PIM." Universidade Federal do Amazonas, 2013. http://tede.ufam.edu.br/handle/tede/3556.

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Made available in DSpace on 2015-04-22T22:10:56Z (GMT). No. of bitstreams: 1 mario sobral.pdf: 1031304 bytes, checksum: 17b78abcce30773ebc357d63a1e2c07b (MD5) Previous issue date: 2013-08-06<br>The Circle of Quality Control consists on a group of employees who volunteer to support a company, whose goal is to identify, analyze and propose improvements to problems detected in work, besides focusing on professional development and improving the work environment. The company studied has increased focus on financial return of the QCC, having no tools to evaluate the attendant performances and t
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7

Sarmiento, Carnevali Maria Laura. "Modeling and control of PEM fuel cells." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/667121.

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In recent years, the PEM fuel cell technology has been incorporated to the R&D plans of many key companies in the automotive, stationary power and portable electronics sectors. However, despite current developments, the technology is not mature enough to be significantly introduced into the energy market. Performance, durability and cost are the key challenges. The performance and durability of PEM fue! cells significantly depend on variations in the concentrations of hydrogen and oxygen in the gas channels, water activity in the catalyst layers and other backing layers, water content in the
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8

Ragb, Omar B. K. "Advanced model based control for PEM fuel cell stacks." Thesis, Liverpool John Moores University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.590087.

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This thesis investigates the application of three advanced control strategies in oxygen ratio control of fuel cell stacks. The major objective of these control schemes is to maintain the oxygen ratio at the desired value of 2 for variable load current as disturbance and system uncertainty in order to prevent oxygen starvation. These strategies include, feed-forward (FF) plus feedback (FB) control scheme, model predictive control (MPC) scheme and multi variable control. All the developed methods have been assessed using a non-linear simulation of the fuel cell stack (FCS) model. Satisfactory co
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9

Seay, Christopher Wayne. "The Role of Branching Topology on Rheological Properties and its Effect on Film-Casting Performance." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/37671.

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With this research, we work towards the overall objective of customizing polymer molecules in terms of their molecular structure to optimize processing performance. The work includes analysis of the rheology in shear and shear-free flows for sparsely long-chain branched, LCB, polyethylene, PE, resins; determination of the consistency of the molecular based constitutive model, the pom-pom model; for these flows, and evaluation of the same PE resins in film-casting. As we progress towards molecular systems with defined molecular structural characteristics, we transition from a linear low densi
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10

Boyce, John S. "Linking PPBES and the POM with capabilities." Thesis, Monterey, Calif. : Naval Postgraduate School, 2006. http://bosun.nps.edu/uhtbin/hyperion.exe/06Dec%5FBoyce.pdf.

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11

Zancul, Eduardo de Senzi. "Gestão do ciclo de vida de produtos: seleção de sistemas PLM com base em modelos de referência." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/18/18140/tde-27052009-132444/.

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A gestão do ciclo de vida de produtos (Product Lifecycle Management) é uma abordagem para a gestão integrada dos processos de negócio e das informações relacionadas aos produtos. Tal abordagem requer a utilização de sistemas de informação (Sistemas PLM) para apoiar a colaboração na empresa estendida, ao longo de todo o ciclo de vida. O problema prático que motiva a realização deste trabalho é a dificuldade enfrentada pelas empresas, atualmente, em avaliar os sistemas PLM existentes no mercado e em selecionar a alternativa mais adequada aos seus processos de negócio. A análise da situação atual
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12

Östling, Erik. "Model on degradation of PEM fuel cells in marine applications." Thesis, KTH, Kemiteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299446.

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Sjöfarten står för 3 % av världens totala växthusgaser och är idag högst beroende av fossila bränslen. Ett alternativ för att gå över till en fossilfri flotta är användning av bränsleceller och vätgas som drivmedel. Om vätgasen produceras från elektrolys med förnyelsebara energikällor så är driften utsläppsfri och koldioxidneutral. Bränsleceller kan användas i många olika sammanhang, men har ännu inte slagit igenom med full kraft. En anledning till detta är livslängden som är för kort. För att sjöfarten ska kunna implementera bränslecellsdrift behöver nedbrytningen av bränslecellen bli vidare
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13

Winkler, Markus. "The processmetallurgic reactor model (PRM) an interactive implementation and visualization." Saarbrücken VDM Verlag Dr. Müller, 2007. http://d-nb.info/989496341/04.

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14

Vadoudi, Kiyan. "Data Model Proposal to Integrate GIS with PLM for DfS." Thesis, Troyes, 2017. http://www.theses.fr/2017TROY0014/document.

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Le déploiement du développement durable passe par des enjeux de transition sociétale et technique auxquels cherche à répondre le Design for Sustainability (DfS). Dans le cadre de la conception des systèmes de production, et en particulier pour les produits manufacturés, les impacts environnementaux que ce soit en termes de consommation de ressources ou de rejets (déchets, émissions) doivent être intégrés comme des paramètres de conception. L’évaluation des impacts environnementaux (par exemple par l’Analyse de Cycle de Vie, ACV) doit donc s’articuler avec la gestion du cycle de vie des produit
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Zhang, Sumei. "Product structure modeling for ETO system product considering the product lifecycle : A case study of ABB Mine Hoist." Thesis, Uppsala universitet, Industriell teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-385770.

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In order to gain competitive advantages in markets, companies have provided a variety of customized products to satisfy customer-specific requirements, leading to not only a large amount of product data but also high cost, long lead-time and complexity of quality control. Efficient product data management throughout the product lifecycle has become increasingly crucial, of which product structure management is regarded as the most important constituent.  The study took ABB Mine Hoist system as a case to investigate how to construct a generic product structure model fit for engineer-to-order sy
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16

Carvalho, Silmara Cardoso de. "Índice da competitividade logística do PIM - modal aéreo." Universidade Federal do Amazonas, 2013. http://tede.ufam.edu.br/handle/tede/3567.

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Made available in DSpace on 2015-04-22T22:11:03Z (GMT). No. of bitstreams: 1 Silmara de C Marambio.pdf: 1355745 bytes, checksum: 6e74333ccdb0a8a2abd7e289ab2b776d (MD5) Previous issue date: 2013-12-27<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Globalization is a reality that affects all sectors of society, economic relations have changed dramatically since the conception of this borderless world. The industries that were established only in their home country , have joined industrial clusters around the world , aiming to make their products more competitive and mee
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17

Keren, Nir. "Model for multi-strata safety performance measurements in the process industry." Texas A&M University, 2003. http://hdl.handle.net/1969.1/319.

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Measuring process safety performance is a challenge, and the wide variations in understanding, compliance, and implementation of process safety programs increase the challenge. Process safety can be measured in three strata: (1) measurement of process safety elements within facilities; (2) benchmarking of process safety elements among facilities; and (3) use of incident data collection from various sources for industrial safety performance assessment. The methods presently available for measurement of process safety within facilities are deficient because the results are strongly dependent on
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18

Annakula, Chandravyas. "Hierarchical and partitioning based hybridized blocking model." Kansas State University, 2017. http://hdl.handle.net/2097/35468.

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Master of Science<br>Department of Computing and Information Sciences<br>William H. Hsu<br>(Higgins, Savje, & Sekhon, 2016) Provides us with a sampling blocking algorithm that enables large and complex experiments to run in polynomial time without sacrificing the precision of estimates on a covariate dataset. The goal of this project is to run the different clustering algorithms on top of clusters formed from above mentioned blocking algorithm and analyze the performance and compatibility of the clustering algorithms. We first start with applying the blocking algorithm on a covariate dataset
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19

Barsk, Karl-Johan. "Model Predictive Control of a Tricopter." Thesis, Linköpings universitet, Reglerteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-79066.

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In this master thesis, a real-time control system that stabilizes the rotational rates of a tri-copter, has been studied. The tricopter is a rotorcraft with three rotors. The tricopter has been modelled and identified, using system identification algorithms. The model has been used in a Kalman filter to estimate the state of the system and for design ofa model based controller. The control approach used in this thesis is a model predictive controller, which is a multi-variable controller that uses a quadratic optimization problem to compute the optimal con-trol signal. The problem is solved su
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20

Lunt, Daniel J., Matthew Huber, Eleni Anagnostou, et al. "The DeepMIP contribution to PMIP4: experimental design for model simulations of the EECO, PETM, and pre-PETM (version 1.0)." COPERNICUS GESELLSCHAFT MBH, 2017. http://hdl.handle.net/10150/623012.

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Past warm periods provide an opportunity to evaluate climate models under extreme forcing scenarios, in particular high ( >  800 ppmv) atmospheric CO<sub>2</sub> concentrations. Although a post hoc intercomparison of Eocene ( ∼  50  Ma) climate model simulations and geological data has been carried out previously, models of past high-CO<sub>2</sub> periods have never been evaluated in a consistent framework. Here, we present an experimental design for climate model simulations of three warm periods within the early Eocene and the latest Paleocene (the EECO, PETM, and pre-PETM). Together with t
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21

Schleidt, Bettina. "Personal Resource Management (PRM) in der modernen Produktentwicklung." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-214747.

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Zunächst wird ein Überblick über berufliche Herausforderungen für Menschen in der modernen Produktentwicklung (-> Industrie 4.0) gegeben. Anschließend wird ein allgemeines Rahmenmodell beschrieben, in dem (nicht nur) psychologische Faktoren dargestellt werden, die menschliches Fühlen, Denken und Handeln beeinflussen. Im dritten Abschnitt wird ein Blick über den Tellerrand geworfen: In der Luftfahrt sind sogenannte Crew Resource Management Seminare für Besatzungen von Verkehrsflugzeugen gesetzlich verpflichtender Teil der Personalentwicklung und Weiterbildung. Es wird der Frage nachgegangen, in
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Garcia, Sergio Leonardo. "A contribution to the understanding of a PEM fuel cell transient model." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63017.pdf.

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23

Fortuin, Adrian Charles. "Development of a semi–empirical reaction kinetic model for PEM fuel cells." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/5334.

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In the drive to more sustainable energy production, polymer electrolyte fuel cells (PEFC) have been at the pinnacle of global research. One of the major drawbacks of PEFCs is therequirement for expensive noble metal catalysts (platinum and ruthenium). Furthermore 75% of the overpotential losses at the cathode are due to the activation of the oxygen reduction reaction (ORR). To reduce the platinum content requirements and understand the cause of the large overpotential of the ORR, a fundamental understanding of the reaction mechanism and the manner in which it proceeds under different operating
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Izadpanah, Seyed Hamedreza. "Méthode d'évolution de modèles produits dans les sytèmes PLM." Thesis, Grenoble, 2011. http://www.theses.fr/2011GRENI077/document.

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Le système PLM est l’un des outils stratégiques de l’entreprise. Ces systèmes sont sujets à des changements récurrents dans l’entreprise. Les évolutions organisationnelles, le changement de l’offre produit ou encore le remplacement de logiciels PLM peuvent déclencher l’évolution du système d’information PLM. Une des structures les plus importantes dans les systèmes PLM est le modèle du produit, autour duquel s’articule les informations et processus. C’est autour du modèle produit que se concentrent nos recherches. Les causes d’évolution des modèles produits sont des éléments signifiants qui di
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Wahlund, Patrik, and Patrik Sjögren. "Studie av informationsöverföring mellan konstruktion och produktion." Thesis, Linköpings universitet, Maskinkonstruktion, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129317.

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This master thesis aims to examine how the transfer of product related information is carried out in the manufacturing industry. The study was supposed to give suggestions for improving the CAD courses provided at Linköping University. This thesis is the concluding step for the authors’ master’s degree in mechanical engineering.In the beginning of the project a study of relevant literature was made. The literature was aimed to gain more knowledge of the subject at hand and finding relevant methods for collecting and analyzing data. To examine how the industry deals with product related data a
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Denis, Yvan. "Implémentation de PCM (Process Compact Models) pour l’étude et l’amélioration de la variabilité des technologies CMOS FDSOI avancées." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT045/document.

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Récemment, la course à la miniaturisation a vue sa progression ralentir à cause des défis technologiques qu’elle implique. Parmi ces obstacles, on trouve l’impact croissant de la variabilité local et process émanant de la complexité croissante du processus de fabrication et de la miniaturisation, en plus de la difficulté à réduire la longueur du canal. Afin de relever ces défis, de nouvelles architectures, très différentes de celle traditionnelle (bulk), ont été proposées. Cependant ces nouvelles architectures demandent plus d’efforts pour être industrialisées. L’augmentation de la complexité
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Hassan, Hafiz Muhammad Adeel. "Development and Evaluation of a CFD Model to Simulate Thermal Performance of Phase Change Material (PCM) Based Energy Storage Systems." Thesis, KTH, Kraft- och värmeteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150715.

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Waste heat can be recovered and used in different processes to increase energy efficiency and reduce CO2 emissions. It has become an attractive area of research for scientists and several techniques are being investigated and practiced to recover, store and use waste heat. Thermal Energy Storage is one of the modern techniques that is used to store and use waste heat. Energy can be stored in both sensible and latent forms of heat. Latent heat storage is the most efficient way of storing thermal energy as it provides higher storage density and lower temperature differential between storing and
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Van, Scoy Bryan Richard. "A Mathematical Model for Hydrogen Production from a Proton Exchange Membrane Photoelectrochemical Cell." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1326217817.

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Rodgers, Steven Francis. "Simulation of PEM fuel cells: validation of model and incorporation of humidity dynamics." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2010. http://scholarsmine.mst.edu/thesis/pdf/Rodgers_09007dcc807d8717.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2010.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed July 29, 2010) Includes bibliographical references (p. 64-67).
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Kim, Yong Sik. "Kinetic and mechanistic studies of polyoxometalate (POM) reaction with lignin and model compounds." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31366.

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Polyoxometalates (POMs) are a rapidly growing class of metal-oxygen-cluster anions. The properties of POMs can be modified by altering the POMs chemical composition and structure. Due to low cost, commercial availability, and synthetic tractability POMs have found application in various fields of chemistry and technology. POMs are reusable and thermally stable to oxidative conditions, making them an attractive alternative to chlorine for the delignification of wood pulp. The research addressed in this dissertation deals with detailed kinetic and mechanistic studies of K₅[SiVW₁₁O₄₀]·12H₂O, a PO
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Wang, Guangyao. "An Investigation of Phase Change Material (PCM)-Based Ocean Thermal Energy Harvesting." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/100989.

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Phase change material (PCM)-based ocean thermal energy harvesting is a relatively new method, which extracts the thermal energy from the temperature gradient in the ocean thermocline. Its basic idea is to utilize the temperature variation along the ocean water depth to cyclically freeze and melt a specific kind of PCM. The volume expansion, which happens in the melting process, is used to do useful work (e.g., drive a turbine generator), thereby converting a fraction of the absorbed thermal energy into mechanical energy or electrical energy. Compared to other ocean energy technologies (e.g., w
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Santos, Aline Diorio dos. "Elaboração de modelo conceitual da degradação de poliacrilamidas (PAM) em compostos nitrogenados aplicado a estudo de caso." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/154196.

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Submitted by Aline Diorio Dos Santos (aline_sduarte@yahoo.com.br) on 2018-06-08T13:12:54Z No. of bitstreams: 1 Dissertação_Aline_23_4_1.pdf: 4336751 bytes, checksum: b04bc967fc2ebdfb6b4208fbc09f7000 (MD5)<br>Approved for entry into archive by Ana Paula Santulo Custódio de Medeiros null (asantulo@rc.unesp.br) on 2018-06-08T16:42:40Z (GMT) No. of bitstreams: 1 santos_ad_me_rcla.pdf: 4221486 bytes, checksum: 64fef6cda169d205f99769d9b9e4f33f (MD5)<br>Made available in DSpace on 2018-06-08T16:42:40Z (GMT). No. of bitstreams: 1 santos_ad_me_rcla.pdf: 4221486 bytes, checksum: 64fef6cda169d205f997
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Wang, Lin. "Mass Transfer and GDL Electric Resistance in PEM Fuel Cells." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/486.

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Many modeling studies have been carried out to simulate the current distribution across the channel and shoulder direction in a proton exchange membrane (PEM) fuel cell. However the modeling results do not show agreement on the current density distribution. At the same time, no experimental measurement result of current density distribution across the channel and the shoulder direction is available to testify the modeling studies. Hence in this work, an experiment was conducted to separately measure the current densities under the channel and the shoulder in a PEM fuel cell by using the specia
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Schwerdtle, Hartwig. "Prozessintegriertes Management - PIM : ein Modell für effizientes Qualitäts-, Umwelt- und Arbeitsschutzmanagement /." Berlin : Springer, 1999. http://aleph.unisg.ch/hsgscan/hm00006710.pdf.

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Yeates, Stuart Andrew. "Text Augmentation: Inserting markup into natural language text with PPM Models." The University of Waikato, 2006. http://hdl.handle.net/10289/2600.

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This thesis describes a new optimisation and new heuristics for automatically marking up XML documents, and CEM, a Java implementation, using PPM models. CEM is significantly more general than previous systems, marking up large numbers of hierarchical tags, using n-gram models for large n and a variety of escape methods. Four corpora are discussed, including the bibliography corpus of 14682 bibliographies laid out in seven standard styles using the BibTeX system and marked up in XML with every field from the original BibTeX. Other corpora include the ROCLING Chinese text segmentation corpus,
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Krima, Sylvère. "Semantic based framework for dynamic customization of PLM-related information models." Phd thesis, Université de Bourgogne, 2013. http://tel.archives-ouvertes.fr/tel-00944190.

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We live in the information age. Data has become an essential asset for most everyday situations and business interactions. The need to share data, to generate information, and create new knowledge from that data is common to all fields of research and all economic activity. Managing data is a critical, and sometimes costly, process. When not properly defined, data might become incomplete, inconsistent or, even worse, unusable. Requirements for data evolve and we must define new data or update existing data over the entire data lifecycle. Evolving data requirements is an important issue and a t
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Forcat, Torras Francesc. "Anàlisi del camp d'ones internes en sistemes limnològics petits. Simulacions amb el POM." Doctoral thesis, Universitat de Girona, 2009. http://hdl.handle.net/10803/7811.

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Aquí hem aplicat el Princeton Ocean Model als embassaments de Sau i Boadella, situats a Catalunya, Espanya. Les simulacions s'han realitzat a l'estació d'estiu, quan la columna d'aigua està estratificada de forma contínua, i sota un règim de brisa amb velocitats de fins a 4 m/s. Basant-nos en aquestes simulacions hem analitzat el camp d'ones internes i comparat els resultats numèrics amb dades experimentals disponibles. El model reprodueix adequadament tots els modes observats en l'espectre de la velocitat i temperatura mesurades i ajuda a identificar els diferents modes. Les simulacions mostr
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Simmler, Urs. "PTC Creo Simulate 3.0." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-171761.

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Strahl, Stephan. "Experimental and model-based analysis for performance and durability improvement of PEM fuel cells." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/285240.

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Increasing global energy demand, growing carbon emissions and the depletion of fossil fuel sources are some of the most important driving forces for the development of sustainable energy solutions. Proton Exchange Membrane (PEM) fuel cells have been demonstrated to be a potential candidate for clean energy conversion in a wide range of applications reaching from highly dynamic transportation systems to stationary systems. Despite their benefits, such as high efficiency and wide operating range, PEM fuel cells must still meet or exceed the technological advantages, such as durability and cost,
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Hattie, Ronald J. "Power assurance for the PT6/T400 engine ghrough the use of a computer model." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ26995.pdf.

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Hattie, Ronald J. (Ronald Joseph) Carleton University Dissertation Engineering Mechanical and Aerospace. "Power assurance for the PT6/T400 engine through the use of a computer model." Ottawa, 1997.

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42

Beset, Doğan Arda Günaydın Murat. "A model for assesing project management maturity level of architectural design offices (ARCH-PMM)/." [s.l.]: [s.n.], 2007. http://library.iyte.edu.tr/tezlerengelli/doktora/mimarlik/T000666.pdf.

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43

Caliari, Giuliano Luz Pigatti. "Transformações e mapeamentos da MDA e sua implementação em três ferramentas." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-08012008-103612/.

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As transformações de modelos são um ponto vital para os enfoques de desenvolvimento dirigido por modelos, incluindo a MDA. No presente trabalho apresenta-se alguns dos conceitos da MDA relacionados a transformações de modelos. São vistos os conceitos de PIM, PSM, transformações, mapeamentos e marcas. Estes conceitos são analisados no contexto de três ferramentas MDA, a OptimalJ, a AndroMDA e a ArcStyler, para verificar se as ferramentas os implementam de acordo com a MDA. Também é analisado como e quais transformações e mapeamentos de modelos estão sendo implementados pelas ferramentas, atravé
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44

Cook, Shane Stuart. "Effects of headwinds on towing tank resistance and PMM tests for ONR Tumblehome." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/2688.

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Calm water towing tank experiments consisting of resistance tests and static and dynamic planar motion mechanism (PMM) tests are performed for a surface combatant with primary focus on the effects of hurricane scale headwinds. The experiments are designed to gain a better understanding of the physics of ship response to wind and to provide a validation dataset for an unsteady Reynolds-averaged Navier Stokes (RANS)-based computational fluid dynamics (CFD) code used for computing both air and water flow around a ship. Hurricane scale wind speeds are chosen to maximize the measurable effect of wi
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45

El, Kadiri Soumaya. "Management des processus collaboratifs dans les systèmes PLM." Thesis, Lyon 2, 2009. http://www.theses.fr/2009LYO22017/document.

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La tendance actuelle des organisations à développer des collaborations avec différentes parties prenantes a pour objectif de répondre à une complexité de plus en plus importante des produits et de favoriser l'innovation ; le tout sous de fortes pressions d'un environnement économique, liées aux exigences du développement durable, de l'accélération des cycles de vie, des normes qualité, etc. Les SIP tendent à garantir une transversalité entre l'ensemble des phases du cycle de vie produit ; répondant ainsi aux besoins d'amélioration de la qualité produit, de maîtrise des processus et de réductio
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46

Luna, Pacho Julio Alberto. "Development of control systems and state observers for efficiency and durability improvement in PEM fuel cell based systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/458885.

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Proton exchange membrane (PEM) fuel cells, which use hydrogen as fuel, provide high power densities while operating at lower temperatures, reducing the cost of materials and maintenance. PEM fuel cells are suitable for a broad range of applications, such as stationary, combined heat and power (CHP), portable systems and automotive. Performance and degradation in PEM fuel cell-based systems is greatly influenced by the internal conditions of the fuel cell. In this doctoral thesis, an extensive study of modelling, observation and control strategies of a PEM fuel cell-based system is performed.
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Mair, Patrick, and Reinhold Hatzinger. "Extended Rasch Modeling: The eRm Package for the Application of IRT Models in R." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2007. http://epub.wu.ac.at/332/1/document.pdf.

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Item response theory models (IRT) are increasingly becoming established in social science research, particularly in the analysis of performance or attitudinal data in psychology, education, medicine, marketing and other fields where testing is relevant. We propose the R package eRm (extended Rasch modeling) for computing Rasch models and several extensions. A main characteristic of some IRT models, the Rasch model being the most prominent, concerns the separation of two kinds of parameters, one that describes qualities of the subject under investigation, and the other relates to qualities of t
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Bertoco, Juliana. "Solução numérica do modelo constitutivo KBKZ-PSM para escoamentos com superfícies livres." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-16012017-162912/.

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Escoamentos viscoelásticos não estacionários com superfícies livres são comuns em muitos processos industriais e diversas técnicas numéricas têm sido empregadas para reproduzir computacionalmente estes processos. A maioria dos modelos empregados utiliza equações diferenciais na definição do tensor de tensões. Porém, para alguns grupos de fluidos complexos, por exemplo, fluidos de Boger, os modelos integrais mostram-se mais capacitados em fornecer uma boa aproximação para os comportamentos não lineares desses fluidos. Este trabalho trata da solução numérica do modelo constitutivo integral KBKZ-
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Paul, Ratnadeep. "A Translator for Converting JT Models to Second Life." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1236966950.

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Christie, Christopher Robert. "Calcium/Phosphate Regulation: A Control Engineering Approach." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/54014.

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Calcium (Ca) homeostasis is the maintenance of a stable plasma Ca concentration in the human body in the presence of Ca variability in the physiological environment (e.g. by ingestion and/or excretion). For normal physiological function, the total plasma Ca concentration must be maintained within a very narrow range (2.2-2.4mM). Meeting such stringent requirements is the task of a regulatory system that employs parathyroid hormone (PTH) and calcitriol (CTL) to regulate Ca flux between the plasma and the kidneys, intestines and bones. On the other hand, plasma phosphate control is less tightly,
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