Dissertations / Theses on the topic 'Computational Design Theory'
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Shomali, Farid Manawel. "The gnomonic theory of architecture : a computational theory of the geneology of design." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248560.
Full textWang, Haihang. "PAOFLOW-Aided Computational Materials Design." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1609102/.
Full textGutierrez, Rafael. "Computational Design of Nanomaterials." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-194029.
Full textBruce, Neil. "Evolutionary Design for Computational Visual Attention." Thesis, University of Waterloo, 2003. http://hdl.handle.net/10012/900.
Full textHolliday, Glenn E. "Supporting design: a computational theory of design and its implementation in a software support tool." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/40670.
Full textDesign is examined as a generic activity, found in many fields of professional practice. A theoretical framework is developed that supports the refinement of design from high-level concepts through implementation. This framework includes a computational model that is shown to be completely general (Turing-equivalent). Therefore, the theory and model are suitable for representing any design project. They are applied specifically to software development.
Practical support for software designers is offered in a prototype software design
system. Existing work in automated knowledge acquisition is used to transfer
knowledge about a design from the designer to the automated tool. Consistent
support for refinement of design choices at any level of detail makes design a
maintainable activity. This opens new possibilities for automated code generation,
automated maintenance, and the nlore effective management of software at a
higher-level design representation.
Master of Science
Bryant, Cari Rihan. "A computational theory for the generation of solutions during early conceptual design." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/crb5ea_09007dcc8042a16d.pdf.
Full textVita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 15, 2008) Includes bibliographical references (p. 236-249).
Grigoriadis, Kostas. "Computational and conceptual blends : the epistemology of designing with functionally graded materials." Thesis, Royal College of Art, 2018. http://researchonline.rca.ac.uk/3401/.
Full textHuang, Lunmei. "Computational Material Design : Diluted Magnetic Semiconductors for Spintronics." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7800.
Full textRaghothama, Jayanth. "Integrating Computational and Participatory Simulations for Design in Complex Systems." Doctoral thesis, KTH, Vårdlogistik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208170.
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Linder, Mats. "Computational Studies and Design of Biomolecular Diels-Alder Catalysis." Doctoral thesis, KTH, Tillämpad fysikalisk kemi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-101706.
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Tuikka, T. (Tuomo). "Towards computational instruments for collaborating product concept designers." Doctoral thesis, University of Oulu, 2002. http://urn.fi/urn:isbn:9514267257.
Full textZhang, Chunmei. "Computational discovery and design of novel materials from electronic structure engineering." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/149858/1/Chunmei_Zhang_Thesis.pdf.
Full textMonyoncho, Evans Angwenyi. "In-Situ and Computational Studies of Ethanol Electrooxidation Reaction: Rational Catalyst Design Strategies." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35940.
Full textHe, Tianwei. "Computational discovery and design of nanocatalysts for high efficiency electrochemical reactions." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/203969/1/Tianwei_He_Thesis.pdf.
Full textFerhatosmanoglu, Nilgun. "Optimal design of experiments for emerging biological and computational applications." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1179177867.
Full textRadhakrishnan, Mala Lakshmi. "Tackling the bigger picture in computational drug design : theory, methods, and application to HIV-1 protease and erythropoietin systems." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39674.
Full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references.
This thesis addresses challenging aspects of drug design that require explicit consideration of more than a single drug-target interaction in an unchanging environment. In the first half, the common challenge of designing a molecule that recognizes a desired subset of target molecules amidst a large set of potential binding partners is explored. Using theoretical approaches and simulation of lattice-model molecules, relationships between binding specificity and molecular properties such as hydrophobicity, size, and conformational flexibility were achieved. Methods were developed to design molecules and molecular cocktails capable of recognizing multiple target variants, and some were integrated with existing methods to design drug cocktails that were predicted to inhibit seven variants of HIV-1 protease. In the second half of the thesis, computational modeling and designs that were used to understand how cytokine binding and trafficking events affect potency are described. A general cellular-level model was systematically explored to analyze how signaling and trafficking properties can help dictate a cytokine-receptor binding affinity appropriate for long-term potency.
(cont.) To help create an accurate cellular-level model of signaling and trafficking for one system in particular, the erythropoietin (Epo) system, we computationally designed mutant erythropoietin receptor (EpoR) molecules for use as experimental probes. By mutating a residue predicted to contribute to pH-dependent Epo-EpoR binding, reagents were designed to facilitate study of endosomal binding and trafficking. Furthermore, a pair of mutant Epo receptors was designed to form a specific, heterodimeric complex with Epo to facilitate study of each individual EpoR's role in signaling via the asymmetric Epo-(EpoR)2 complex.
by Mala Lakshmi Radhakrishnan.
Ph.D.
Zhou, Mingxia. "First-principles based micro-kinetic modeling for catalysts design." Diss., Kansas State University, 2018. http://hdl.handle.net/2097/38608.
Full textDepartment of Chemical Engineering
Bin Liu
Efficient and selective catalysis lies at the heart of many chemical reactions, enabling the synthesis of chemicals and fuels with enormous societal and technological impact. A fundamental understanding of intrinsic catalyst properties for effective manipulation of the reactivity and selectivity of industrial catalysts is essential to select proper catalysts to catalyze the reactions we want and hinder the reactions we do not want. The progress in density functional theory (DFT) makes it possible to describe interfacial catalytic reactions and predict catalytic activities from one catalyst to another. In this study, water-gas shift reaction (WGSR) was used as a model reaction. First-principles based micro-kinetic modeling has been performed to deeply understand interactions between competing reaction mechanisms, and the relationship with various factors such as catalyst materials, structures, promoters, and interactions between intermediates (e.g., CO self-interaction) that govern the observed catalytic behaviors. Overall, in this thesis, all relevant reaction mechanisms in the model reaction on well-defined active sites were developed with first-principles calculations. With the established mechanism, the promotional effect of K adatom on Ni(111) on WGSR compared to the competing methanation was understood. Moreover, the WGSR kinetic trend, with the hydrogen production rate decreasing with increasing Ni particle diameters (due to the decreasing fractions of low-coordinated surface Ni site), was reproduced conveniently from micro-kinetic modeling techniques. Empirical correlations such as Brønsted-Evans-Polanyi (BEP) relationship for O-H, and C-O bond formation or cleavage on Ni(111), Ni(100), and Ni(211) were incorporated to accelerate computational analysis and generate trends on other transition metals (e.g., Cu, Au, Pt). To improve the numerical quality of micro-kinetic modeling, later interactions of main surface reaction intermediates were proven to be critical and incorporated successfully into the kinetic models. Finally, evidence of support playing a role in the enhancement of catalyst activity and the impact on future modeling will be discussed. DFT will be a powerful tool for understanding and even predicting catalyst performance and is shaping our approach to catalysis research. Such molecular-level information obtained from computational methods will undoubtedly guide the design of new catalyst materials with high precision.
Kanade, Gaurav Nandkumar. "Combinatorial optimization problems in geometric settings." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/1152.
Full textKoullias, Stefanos. "Methodology for global optimization of computationally expensive design problems." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49085.
Full textCode, James Edward Eick J. David. "Experimental evaluation of solvents with a biological substrate based on solubility parameter theory solubility parameter determinations by computational chemistry using a rational design process /." Diss., UMK access, 2004.
Find full text"A dissertation in oral biology and chemistry." Advisor: J. David Eick. Typescript. Vita. Description based on contents viewed Feb. 23, 2006; title from "catalog record" of the print edition. Includes bibliographical references (leaves 137-145). Online version of the print edition.
Ismail, Arif. "First Principles and Genetic Algorithm Studies of Lanthanide Metal Oxides for Optimal Fuel Cell Electrolyte Design." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20198.
Full textSahai, Michelle Asha. "Computational studies of ligand-water mediated interactions in ionotropic glutamate receptors." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:b86d2f5a-3554-44c0-b985-5693241369ec.
Full textJha, Rajesh. "Combined Computational-Experimental Design of High-Temperature, High-Intensity Permanent Magnetic Alloys with Minimal Addition of Rare-Earth Elements." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2621.
Full textWashburn, Megan E. "Dynamic Procedural Music Generation from NPC Attributes." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2193.
Full textSinchaisri, Wichinpong (Wichinpong Park). "Pricing with quality perception : theory and experiment." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104563.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 111-115).
Quality is one of the most important factors behind a decision to purchase any product. Consumers have long assumed that price and quality are highly correlated, and that as the price of a product increases, its quality also increases ("you get what you pay for"). Several researchers have studied how consumers use price to infer quality, but very few have investigated the impact of pricing strategies, particularly price markdowns, on quality perception and how a retailer should react to such behavior. Our key research questions, viewed through both an empirical and a theoretical lens, concern how markdowns with different discount levels may induce different consumer behaviors and how the firm should incorporate them when optimizing its markdown policy. We empirically elicit the relationship between a consumer's quality perception and available price information, and refine a consumer demand model to capture these insights, together with other motives-reference dependence, loss aversion, patience, and optimism. For the retailer, we characterize the structure of the market segmentation and analyze its optimal markdown strategy when consumers are sensitive to quality. We present conditions in which it is optimal for the firm to apply a markdown to its products. When consumers are more sensitive to the product's original price than to the discount, or are impatient to wait for the future discounts, the retailer can earn the maximum revenue when applying a markdown strategy. Furthermore, we advocate that the firm should pre-announce the information about future markdowns in order to avoid the negative effect of the consumers' inaccurate estimates.
by Wichinpong Sinchaisri.
S.M.
Tancred, James Anderson. "Aerodynamic Database Generation for a Complex Hypersonic Vehicle Configuration Utilizing Variable-Fidelity Kriging." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1543801033672049.
Full textBerenguer, Verdú Antonio José. "Analysis and design of efficient passive components for the millimeter-wave and THz bands." Doctoral thesis, Universitat Politècnica de València, 2017. http://hdl.handle.net/10251/84004.
Full textEsta tesis aborda problemas actuales en el análisis y diseño de componentes pasivos en las bandas de onda milimétrica y Terahercios (THz). Se presentan nuevas técnicas de análisis y modelado de estructuras complejas, procedimientos de diseño, e implementación práctica de dispositivos pasivos avanzados. La primera parte de la tesis se dedica a componentes pasivos de THz. Actualmente no se disponen de guías de onda adecuadas a THz debido a que ambos, metales y dieléctricos, introducen grandes pérdidas. En consecuencia, no es adecuado escalar las estructuras metálicas cerradas usadas en microondas, ni las guías dieléctricas usadas a frecuencias ópticas. Entre un gran número de recientes propuestas, la Single Wire Waveguide (SWW) destaca por su baja atenuación y casi nula dispersión. No obstante, como guía superficial, la SWW presenta difícil excitación y radiación en curvas. El uso de un recubrimiento dieléctrico, creando la Dielecric-Coated Single Wire Waveguide (DCSWW), alivia estos inconvenientes, pero las ventajas anteriores se pierden y nuevos problemas aparecen. Hasta la fecha, no se han encontrado soluciones adecuadas para la radiación en curvas de la SWW. Además, se echa en falta una caracterización rigurosa de ambas guías. Esta tesis presenta, por primera vez, un análisis modal completo de SWW y DCSWW, adecuado a la banda de THz. Este análisis es aplicado posteriormente para evitar el problema de la radiación en curvas. Se presentan y validan experimentalmente diversas estructuras y procedimientos de diseño. La segunda parte de la tesis abarca componentes pasivos de ondas milimétricas. Actualmente, estos componentes sufren una importante degradación de su respuesta debido a que resulta difícil asegurar contacto metálico y alineamiento adecuados para la operación a longitudes de onda tan pequeñas. Además, la absorción dieléctrica incrementa notablemente a estas frecuencias. En consecuencia, tanto guías metálicas huecas como líneas de transmisión planares convencionales presentan gran atenuación, siendo necesario considerar topologías alternativas. Las Gap Waveguides (GWs), basadas en una estructura periódica que introduce un efecto de Electromagnetic Bandgap, resultan muy adecuadas puesto que no requieren contacto entre partes metálicas y evitan las pérdidas en dieléctricos. No obstante, a pesar del potencial de las GWs, varias barreras impiden la consolidación y uso universal de esta tecnología. Por una parte, la compleja topología de las GWs dificulta el proceso de diseño dado que las simulaciones de onda completa consumen mucho tiempo y no existen actualmente métodos de análisis y diseño apropiados. Por otra parte, es necesario evidenciar el beneficio de usar GWs mediante dispositivos GW de altas prestaciones y comparativas adecuadas con estructuras convencionales. Esta tesis presenta diversos métodos de análisis eficientes, modelos, y técnicas de diseño que permitirán la síntesis de dispositivos GW sin necesidad de un conocimiento profundo de esta tecnología. Asimismo, se presentan varios filtros de banda estrecha operando en las bandas Ka y V con altas prestaciones, así como una comparativa rigurosa con la guía rectangular.
Aquesta tesi aborda problemes actuals en relació a l'anàlisi i disseny de components passius en les bandes d'ona mil·limètrica i Terahercis. Es presenten noves tècniques d'anàlisi i modelatge d'estructures complexes, procediments de disseny, i implementació pràctica de dispositius passius avançats. La primera part de la tesi es focalitza en components passius de THz. Actualment no es disposen de guies d'ona adequades a THz causa que tots dos, metalls i dielèctrics, introdueixen grans pèrdues. En conseqüència, no és adequat escalar les estructures metál·liques tancades usades en microones, ni les guies dielèctriques usades a freqüències òptiques. Entre un gran nombre de propostes recents, la Single Wire Waveguide (SWW) destaca per la seua baixa atenuació i quasi nul·la dispersió. No obstant això, com a guia superficial, la SWW presenta difícil excitació i radiació en corbes. L'ús d'un recobriment dielèctric, creant la Dielecric-Coated Single Wire Waveguide (DCSWW), alleuja aquests inconvenients, però els avantatges anteriors es perden i nous problemes apareixen. Fins a la data, no s'han trobat solucions adequades per a la radiació en corbes de la SWW. A més, es troba a faltar una caracterització rigorosa d'ambdues guies. Aquesta tesi presenta, per primera vegada, un anàlisi modal complet de SWW i DCSWW, adequat a la banda de THz. Aquest anàlisi és aplicat posteriorment per evitar el problema de la radiació en corbes. Es presenten i validen experimentalment diverses estructures i procediments de disseny. La segona part de la tesi es centra en components passius d'ones mil·limètriques. Actualment, aquests components pateixen una important degradació de la seua resposta a causa de que resulta difícil assegurar contacte metàl·lic i alineament adequats per a l'operació a longituds d'ona tan menudes. A més, l'absorció dielèctrica incrementa notablement a aquestes freqüències. En conseqüència, tant guies metàl·liques buides com línies de transmissió planars convencionals presenten gran atenuació, sent necessari considerar topologies alternatives. Les Gap Waveguides (GWs), basades en una estructura periòdica que introdueix un efecte de Electromagnetic Bandgap, resulten molt adequades ja que no requereixen contacte entre parts metàl·liques i eviten les pèrdues en dielèctrics. No obstant, tot i el potencial de les GWs, diverses barreres impedixen la consolidació i ús universal d'aquesta tecnologia. D'una banda, la complexa topologia de les GWs dificulta el procés de disseny atés que les simulacions d'ona completa consumeixen molt de temps i no existeixen actualment mètodes d'anàlisi i disseny apropiats. D'altra banda, és necessari evidenciar el benefici d'utilitzar GWs mitjançant dispositius GW d'altes prestacions i comparatives adequades amb estructures convencionals. Aquesta tesi presenta diversos mètodes d'anàlisi eficients, models, i tècniques de disseny que permetran la síntesi de dispositius GW sense necessitat d'un coneixement profund d'aquesta tecnologia. Així mateix, es presenten diversos filtres de banda estreta operant en les bandes Ka i V amb altes prestacions, així com una comparativa rigorosa amb la guia rectangular.
Berenguer Verdú, AJ. (2017). Analysis and design of efficient passive components for the millimeter-wave and THz bands [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/84004
TESIS
Deng, Zeyu. "Rational design of novel halide perovskites combining computations and experiments." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/287932.
Full textWahlström, Dennis. "Probabilistic Multidisciplinary Design Optimization on a high-pressure sandwich wall in a rocket engine application." Thesis, Umeå universitet, Institutionen för fysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-138480.
Full textYin, Weiwei. "The role and regulatory mechanisms of nox1 in vascular systems." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44833.
Full textSivan, D. D. "Design and structural modifications of vibratory systems to achieve prescribed modal spectra /." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phs6238.pdf.
Full textAnisi, David A. "Online trajectory planning and observer based control." Licentiate thesis, Stockholm : Optimization and systems theory, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4153.
Full textSoncco, K., X. Jorge, and R. A. Arciniega. "Postbuckling Analysis of Functionally Graded Beams." Institute of Physics Publishing, 2019. http://hdl.handle.net/10757/625602.
Full textRevisión por pares
Sarkar, Somwrita. "Acquiring symbolic design optimization problem reformulation knowledge." Connect to full text, 2009. http://hdl.handle.net/2123/5683.
Full textTitle from title screen (viewed November 13, 2009). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the Faculty of Architecture, Design and Planning in the Faculty of Science. Includes graphs and tables. Includes bibliographical references. Also available in print form.
Anisi, David A. "On Cooperative Surveillance, Online Trajectory Planning and Observer Based Control." Doctoral thesis, KTH, Optimeringslära och systemteori, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9990.
Full textQC 20100622
TAIS, AURES
Mebane, Palmer. "Uniquely Solvable Puzzles and Fast Matrix Multiplication." Scholarship @ Claremont, 2012. https://scholarship.claremont.edu/hmc_theses/37.
Full textBraga, Eduardo Cardoso. "Fluxo, corpo e percepção na comunicação digital." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/4962.
Full textThere are different ways of conceiving the image in the digital communication. When investigating some discourses regarding the digital image, we came across some constant: the prevalence of the vision (ocularcentrism) and the absence of body reference (disembodiment). The digital image is conceived as simulacrum (Baudrillard), as disembodiment (Kittler), or phenomenon without reference (Mitchell). Moreover, in many of the discourses about communication, one conceives a homogeneous space of absolute transparency, in which obstacles do not exist, either conflicts, or differences (Vattimo). In our thesis we assert that the reasons of those conceptual marks are the slight knowledge of simulacrum, deriving from the Platonism; of representation, deriving from the Cartesianism; of transparency, deriving of the Neoplatonism. We mainly investigate those conceptual traditions with respect to the concept of image and the epistemic statute of the perception. We established a connection between some visual experiences of the past and the new possibilities disposed by the digital technologies. We then looked for new philosophical bases that could set the image free from inferior epistemic condition. The Bergson s phenomenology fed the thinking of the digital image and the perception as embodiment phenomenon, in which the body has a fundamental role in the significance and in the construction of the subjectivity. Thus, new corporal and subjective dimensions announce themselves and show new ways of man being. Body and subjectivity together in the relation to digital medium open new horizons to think the communication and the epistemic statute of the digital image as a knowledge possibility
Existem diferentes modos de conceber a imagem na comunicação digital. Ao investigar alguns discursos referentes à imagem digital, nos deparamos com algumas constantes: o predomínio da visão (ocularcentrismo) e a ausência de referencial corporal (desincorporação). A imagem digital é concebida como simulacro (Baudrillard), como desincorporada (Kittler), ou fenômeno sem referência (Mitchell). Além disso, em muitos dos discursos sobre a comunicação, se concebe um espaço homogêneo de absoluta transparência, no qual não existem obstáculos, nem conflitos, nem diferenças (Vattimo). Em nossa tese defendemos que as razões dessas marcas conceituais são as noções de simulacro, oriundas do platonismo; de representação, oriundas do cartesianismo; de transparência, oriundas do neoplatonismo. Investigamos essas tradições conceituais principalmente no que concerne ao conceito de imagem e ao estatuto epistemológico da percepção. Estabelecemos um nexo entre algumas experiências visuais do passado e as novas possibilidades disponibilizadas pelas tecnologias digitais. Procuramos então novas bases filosóficas que libertassem a imagem de sua condição epistemológica inferior. A fenomenologia bergsoniana forneceu os fundamentos para pensar a imagem digital e a percepção como fenômeno incorporado, no qual o corpo tem um papel fundamental na significação e na construção da subjetividade. Assim, novas dimensões corpóreas e subjetivas se anunciam e apontam para novos modos de ser do homem. Corpo e subjetividade se relacionam nas mídias digitais abrindo novos horizontes para se pensar a comunicação e o estatuto epistemológico da imagem digital como possibilidade de conhecimento
Cekl, Jakub. "Model palivového souboru tlakovodního reaktoru západní koncepce." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376896.
Full textChvatík, Štěpán. "Asynchronní motor s vnějším rotorem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377075.
Full textGutierrez, Laliga Rafael. "Computational Design of Nanomaterials." Doctoral thesis, 2014. https://tud.qucosa.de/id/qucosa%3A29182.
Full textArauz, Moreno Carlos Alexser, and 卡洛斯. "HAWT Design Employing Blade Element Momentum Theory and Computational Fluid Dynamics." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/67814955064521874818.
Full text崑山科技大學
機械工程研究所
103
The present study was devised to contribute to the technical development of locally manufactured small wind turbines in Nicaragua. A small Hugh Piggott wind turbine was investigated and the rotor improved upon using Blade Element Momentum (BEM) Theory. To this effect, Burton’s optimum rotor was utilized as a guideline from whence alternate blade profiles were derived. Thereafter, the aerodynamic performance of the blades was analyzed using the BEM equations including Prandtl’s tip losses, empirical corrections for the turbulent wake state, as well as polynomial curve fits and the Viterna method to model the aerodynamic behavior of the airfoils that make up the cross-sections of the rotor blades. Upon selection of a final blade candidate, Computational Fluid Dynamics (CFD) techniques were employed to further validate the performance of the proposed blade design. On this subject, the simulations were carried out in ANSYS’ Fluent. The wind field was solved through steady state solutions of the Reynolds Averaged Navier Stokes (RANS) equations under a single frame of reference. Taking advantage of the CFD techniques, subjects pertaining to the structural and acoustical behavior of the blade were also briefly discussed within the present work.
Dufton, Lachlan Thomas. "Stochastic Mechanisms for Truthfulness and Budget Balance in Computational Social Choice." Thesis, 2013. http://hdl.handle.net/10012/7231.
Full textPozun, Zachary David. "Materials design via tunable properties." Thesis, 2012. http://hdl.handle.net/2152/ETD-UT-2012-05-4997.
Full texttext
Guo, Mingyu. "Computationally Feasible Approaches to Automated Mechanism Design." Diss., 2010. http://hdl.handle.net/10161/3015.
Full textIn many multiagent settings, a decision must be made based on the preferences of multiple agents, and agents may lie about their preferences if this is to their benefit. In mechanism design, the goal is to design procedures (mechanisms) for making the decision that work in spite of such strategic behavior, usually by making untruthful behavior suboptimal. In automated mechanism design, the idea is to computationally search through the space of feasible mechanisms, rather than to design them analytically by hand. Unfortunately, the most straightforward approach to automated mechanism design does not scale to large instances, because it requires searching over a very large space of possible functions. In this thesis, we adopt an approach to automated mechanism design that is computationally feasible. Instead of optimizing over all feasible mechanisms, we carefully choose a parameterized subfamily of mechanisms. Then we optimize over mechanisms within this family. Finally, we analyze whether and to what extent the resulting mechanism is suboptimal outside the subfamily. We apply (computationally feasible) automated mechanism design to three resource allocation mechanism design problems: mechanisms that redistribute revenue, mechanisms that involve no payments at all, and mechanisms that guard against false-name manipulation.
Dissertation
Zheng, Lin. "Rate Distortion Theory for Causal Video Coding: Characterization, Computation Algorithm, Comparison, and Code Design." Thesis, 2012. http://hdl.handle.net/10012/6559.
Full text(9165011), Salar Safarkhani. "GAME-THEORETIC MODELING OF MULTI-AGENT SYSTEMS: APPLICATIONS IN SYSTEMS ENGINEERING AND ACQUISITION PROCESSES." Thesis, 2020.
Find full textThe process of acquiring the large-scale complex systems is usually characterized with cost and schedule overruns. To investigate the causes of this problem, we may view the acquisition of a complex system in several different time scales. At finer time scales, one may study different stages of the acquisition process from the intricate details of the entire systems engineering process to communication between design teams to how individual designers solve problems. At the largest time scale one may consider the acquisition process as series of actions which are, request for bids, bidding and auctioning, contracting, and finally building and deploying the system, without resolving the fine details that occur within each step. In this work, we study the acquisition processes in multiple scales. First, we develop a game-theoretic model for engineering of the systems in the building and deploying stage. We model the interactions among the systems and subsystem engineers as a principal-agent problem. We develop a one-shot shallow systems engineering process and obtain the optimum transfer functions that best incentivize the subsystem engineers to maximize the expected system-level utility. The core of the principal-agent model is the quality function which maps the effort of the agent to the performance (quality) of the system. Therefore, we build the stochastic quality function by modeling the design process as a sequential decision-making problem. Second, we develop and evaluate a model of the acquisition process that accounts for the strategic behavior of different parties. We cast our model in terms of government-funded projects and assume the following steps. First, the government publishes a request for bids. Then, private firms offer their proposals in a bidding process and the winner bidder enters in a con- tract with the government. The contract describes the system requirements and the corresponding monetary transfers for meeting them. The winner firm devotes effort to deliver a system that fulfills the requirements. This can be assumed as a game that the government plays with the bidder firms. We study how different parameters in the acquisition procedure affect the bidders’ behaviors and therefore, the utility of the government. Using reinforcement learning, we seek to learn the optimal policies of involved actors in this game. In particular, we study how the requirements, contract types such as cost-plus and incentive-based contracts, number of bidders, problem complexity, etc., affect the acquisition procedure. Furthermore, we study the bidding strategy of the private firms and how the contract types affect their strategic behavior.
Sivan, Dmitri D. "Design and structural modifications of vibratory systems to achieve prescribed modal spectra / Dmitri D. Sivan." Thesis, 1997. http://hdl.handle.net/2440/18916.
Full textxii, 198 leaves : ill. ; 30 cm.
This thesis reports on problems associated with design and structural modification of vibratory systems. Several common problems encountered in practical engineering applications are described and novel strategies for solving this problems are proposed. Mathematical formulations of these problems are generated, and solution methods are developed.
Thesis (Ph.D.)--University of Adelaide, Dept. of Mechanical Engineering, 1997
Bombardier, William. "Symbolic Modelling and Simulation of Wheeled Vehicle Systems on Three-Dimensional Roads." Thesis, 2009. http://hdl.handle.net/10012/4818.
Full textKolodny, Marcos. "Análisis de estructuras de sufijos de strings." Bachelor's thesis, 2021. http://hdl.handle.net/11086/23258.
Full textEl problema de desarrollar algoritmos que decidan si un cierto patrón o palabra aparece o no en un determinado texto es fundamental en ciencias de la computación. Diversos algoritmos se han desarrollado en las últimas décadas para resolver este problema (y sus múltiples variantes). Un análisis detallado de las complejidades temporales y espaciales de dichos algoritmos revela que, en la práctica, algoritmos de fuerza bruta no son viables en la mayoría de los casos. En este trabajo, se presentaron, de manera formal y estructurada, dos estructuras ampliamente utilizadas en diversos trabajos. Además, utilizando las mismas, se presentaron soluciones a tres de los principales problemas en el área de estudio.
The problem of developing algorithms that can decide whether a certain pattern or word occurs in a certain text is really important in Computer Science. Several algorithms have been created in the last decades to solve this problem (and its variants). A detailed analysis of computational and spatial complexity of these algorithms shows that, in many cases, brute force solutions are not good enough. During this work we introduced, in a formal and structured way, two data structures that are widely used in several works. Also, by using them, we presented solutions to three of the main problems in the field of study.
Fil: Kolodny, Marcos. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina.
Demarco, Vedelago Leandro. "Selección de componentes discretos para un filtro activo mediante programación por restricciones y optimización por colonia de hormigas." Bachelor's thesis, 2019. http://hdl.handle.net/11086/13414.
Full textEn el diseño actual de filtros activos una de las opciones de implementación es la denominada RC (resistencia/capacitor), en la cual el filtro se construye a partir de amplificadores operacionales, resistencias y capacitores. Para satisfacer el cumplimiento de las especificaciones del filtro resulta de gran importancia la selección de los componentes discretos del filtro. Dado el amplio espectro de valores que los componentes pueden tomar, resulta ineficiente enumerar todas las combinaciones posibles y seleccionar entre ellas la mejor. En este trabajo usamos una metaheurística denominada ACOR la cual permite resolver este tipo de problemas combinatorios con restricciones en tiempos de ejecución razonables al tiempo que garantiza que las soluciones obtenidas satisfacen todas las restricciones aunque pueden no ser de la mejor calidad (donde la calidad se define respecto a alguna característica dependiente de los valores elegidos).
In the current active filter design, one of the possible implementations is the so called RC, in which the filter is built with operational amplifiers, resistors and capacitors. In order to satisfy the filter specifications it’s of great importance the selection of the discrete components that make up the filter. Given the wide range of values that these components can take, it results inefficient to enumerate all possible combinations and select amongst them the best one. In this work we use a metaheuristic called ACOR which allows to solve this kind of constrained combinatorial optimization problems in reasonable time while guaranteeing that the obtained solutions satisfy all the restrictions, though they might not be of the best quality (where quality is defined with respect to some characteristic that depends on the chosen values).