To see the other types of publications on this topic, follow the link: Mathematical formulation of the problem.

Dissertations / Theses on the topic 'Mathematical formulation of the problem'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Mathematical formulation of the problem.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Pratap, Rudra 1964. "A NEW RESIDUAL FINITE-ELEMENT FORMULATION FOR ELASTODYNAMIC PROBLEMS." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276552.

Full text
Abstract:
In the research undertaken a finite element formulation has been developed for an elastodynamic problem using a least squares approach. The special requirements of the problem demanded a study of suitability of various elements. The emergence of the final element is a result of both theoretical and numerical study of three different elements. The approximation function is assumed on the basis of the order of the governing differential equations. Then the square of the error resulting from the approximate solution is minimized over the entire domain as well as the boundaries in the same functio
APA, Harvard, Vancouver, ISO, and other styles
2

Figueiredo, Tatiane Fernandes. "The socio-technical teams formation problem: Complexity, Mathematical Formulations and Computational Results." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15392.

Full text
Abstract:
Using concepts of the socio-technical systems theory, this dissertation defines mathematically the problems of cooperative teams formation considering social and technical constraints separately, and then presents their computational complexity. Mainly, it is defined and studied the central problem in this work, which jointly considers social and technical requirements for creating teams of cooperative work, to be called FEST (Socio-Technical Teams Formation Problem). Two mathematical formulations and a meta-heuristic are proposed for FEST. One formulation uses a cubic number of variables and
APA, Harvard, Vancouver, ISO, and other styles
3

Bajaj, Manas. "Knowledge composition methodology for effective analysis problem formulation in simulation-based design." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26639.

Full text
Abstract:
Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Co-Chair: Dr. Christiaan J. J. Paredis; Committee Co-Chair: Dr. Russell S. Peak; Committee Member: Dr. Charles Eastman; Committee Member: Dr. David McDowell; Committee Member: Dr. David Rosen; Committee Member: Dr. Steven J. Fenves. Part of the SMARTech Electronic Thesis and Dissertation Collection.
APA, Harvard, Vancouver, ISO, and other styles
4

Farias, de Araújo Katyanne. "Inventory routing problems on two-echelon systems : exact and heuristic methods for the tactical and operational problems." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAI064.

Full text
Abstract:
Les activités de transport et de gestion des stocks ont un impact important les unes sur les autres. Assurer un niveau de stock idéal peut demander des livraisons fréquentes, ce qui entraîne des coûts logistiques élevés. Pour optimiser les compromis entre les coûts de stock et de transport, des systèmes VMI (Vendor Managed Inventory) ont été développés pour gérer ensemble les opérations de stock et de transport. Pour un ensemble de clients ayant des demandes sur un horizon de temps, le problème de détermination des tournées et des quantités à livrer avec un coût minimum de gestion de stock et
APA, Harvard, Vancouver, ISO, and other styles
5

Kooli, Anis. "Exact and heuristic methods for resource constrained project scheduling problem." Thesis, Tours, 2012. http://www.theses.fr/2012TOUR4031/document.

Full text
Abstract:
Le problème de gestion de projet à contraintes de ressources est un des problèmesles plus étudiés dans la littérature. Il consiste à planifier des activités soumises à desrelations de précédence, et nécessitant des ressources renouvelables. L’objectif est deminimiser la durée du projet, soit le makespan. Nous étudions le problème de gestion deprojet à contraintes de ressources. Nous nous sommes intéressées à la résolution exactedu problème. Dans la première partie de la thèse, nous élaborons une série de bornesinférieures basées sur le raisonnement énergétique et des formulations mathématiques
APA, Harvard, Vancouver, ISO, and other styles
6

Solak, Senay. "Efficient Solution Procedures for Multistage Stochastic Formulations of Two Problem Classes." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19812.

Full text
Abstract:
We consider two classes of stochastic programming models which are motivated by two applications related to the field of aviation. The first problem we consider is the network capacity planning problem, which arises in capacity planning of systems with network structures, such as transportation terminals, roadways and telecommunication networks. We study this problem in the context of airport terminal capacity planning. In this problem, the objective is to determine the optimal design and expansion capacities for different areas of the terminal in the presence of uncertainty in future demand l
APA, Harvard, Vancouver, ISO, and other styles
7

Manukure, Solomon. "Hamiltonian Formulations and Symmetry Constraints of Soliton Hierarchies of (1+1)-Dimensional Nonlinear Evolution Equations." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6310.

Full text
Abstract:
We derive two hierarchies of 1+1 dimensional soliton-type integrable systems from two spectral problems associated with the Lie algebra of the special orthogonal Lie group SO(3,R). By using the trace identity, we formulate Hamiltonian structures for the resulting equations. Further, we show that each of these equations can be written in Hamiltonian form in two distinct ways, leading to the integrability of the equations in the sense of Liouville. We also present finite-dimensional Hamiltonian systems by means of symmetry constraints and discuss their integrability based on the existence of suf
APA, Harvard, Vancouver, ISO, and other styles
8

Melo, Simão Pedro Sousa. "Rebalanceamento estático do sistema de bicicletas públicas partilhadas de Lisboa - Gira." Master's thesis, Instituto Superior de Economia e Gestão, 2018. http://hdl.handle.net/10400.5/17729.

Full text
Abstract:
Mestrado em Métodos Quantitativos para a Decisão Económica e Empresarial<br>A EMEL é a entidade responsável pela implementação, gestão e operação do Sistema de Bicicletas Públicas Partilhadas (SBPP) de Lisboa. Os Sistemas de Bicicletas Partilhadas (SBP) oferecem um meio de transporte alternativo através da disponibilização de bicicletas distribuídas por estações que estão espalhadas pela área de ação do sistema. Este tipo de sistemas oferece uma opção de mobilidade ecológica e sustentável, contribuindo para a redução da poluição e tráfego automóvel. A assimetria nos padrões de utilização dos
APA, Harvard, Vancouver, ISO, and other styles
9

Lavado, Anabela de Jesus Machado. "O contributo do GeoGebra no desenvolvimento da capacidade de resolução de problemas de alunos do 8º ano do ensino básico." Master's thesis, Universidade de Évora, 2012. http://hdl.handle.net/10174/11859.

Full text
Abstract:
O presente estudo tem como objetivo compreender como pode um contexto de sala de aula apoiado pelo GeoGebra contribuir para promover o desenvolvimento da capacidade de resolução de problemas de alunos do 8.º ano do Ensino Básico. Esta capacidade transversal é especialmente importante nas atuais orientações curriculares. O estudo, pelos objetivos definidos e natureza dos dados recolhidos, constitui uma investigação qualitativa, concretizada pela modalidade de estudo de caso de uma turma participante numa intervenção didática centrada na resolução de problemas geométricos. Conclui-se que as reso
APA, Harvard, Vancouver, ISO, and other styles
10

Araújo, Katyanne Farias de. "Formulações matemáticas para o problema de sequenciamento de lotes com penalidades por atraso." Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/9265.

Full text
Abstract:
Submitted by Fernando Souza (fernandoafsou@gmail.com) on 2017-08-16T11:42:54Z No. of bitstreams: 1 arquivototal.pdf: 2606529 bytes, checksum: e6d5e9c7169bad77fb641468b804b962 (MD5)<br>Made available in DSpace on 2017-08-16T11:42:54Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2606529 bytes, checksum: e6d5e9c7169bad77fb641468b804b962 (MD5) Previous issue date: 2016-07-04<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The problem of scheduling on a single machine, proven to be NP-hard, consists of de ning the job grouping in batches and of the sequence in whic
APA, Harvard, Vancouver, ISO, and other styles
11

Falta, Michael. "Statistical and computational methods to assess uncertainty and risk in accounting." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16053/1/Michael_Falta_Thesis.pdf.

Full text
Abstract:
Informed economic decisions are made on the basis of accounting data. It is therefore crucial to have rigorous and scientific approaches for measuring, modelling and forecasting accounting numbers. Dr Falta's research was motivated by two observations. Firstly, in accounting practice, decision-making often relies on subjective quantifications and forecasts of business activities and, thus, does not account for uncertainty in a rational way. Secondly, there are some academic foundations for statistical approaches to accounting, yet none has been developed carefully enough for results to p
APA, Harvard, Vancouver, ISO, and other styles
12

Falta, Michael. "Statistical and Computational Methods to Assess Uncertainty and Risk in Accounting." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16053/.

Full text
Abstract:
Informed economic decisions are made on the basis of accounting data. It is therefore crucial to have rigorous and scientific approaches for measuring, modelling and forecasting accounting numbers. Dr Falta's research was motivated by two observations. Firstly, in accounting practice, decision-making often relies on subjective quantifications and forecasts of business activities and, thus, does not account for uncertainty in a rational way. Secondly, there are some academic foundations for statistical approaches to accounting, yet none has been developed carefully enough for results to p
APA, Harvard, Vancouver, ISO, and other styles
13

Webb, Kerri. "Matrix Formulations of Matching Problems." Thesis, University of Waterloo, 2000. http://hdl.handle.net/10012/1119.

Full text
Abstract:
Finding the maximum size of a matching in an undirected graph and finding the maximum size of branching in a directed graph can be formulated as matrix rank problems. The Tutte matrix, introduced by Tutte as a representation of an undirected graph, has rank equal to the maximum number of vertices covered by a matching in the associated graph. The branching matrix, a representation of a directed graph, has rank equal to the maximum number of vertices covered by a branching in the associated graph. A mixed graph has both undirected and directed edges, and the matching forest problem for m
APA, Harvard, Vancouver, ISO, and other styles
14

Kim, Hoan-Kee. "Multi-scale nonlinear constitutive models using artificial neural networks." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22613.

Full text
Abstract:
Thesis (Ph. D.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Rami M Haj-Ali; Committee Member: Arash Yavari; Committee Member: Donald W. White; Committee Member: Erian Armanios; Committee Member: Kenneth M. Will.
APA, Harvard, Vancouver, ISO, and other styles
15

Melo, Márcio Daniel Tavares de. "Network virtualisation from an operator perspective." Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/12876.

Full text
Abstract:
Doutoramento em Engenharia Eletrotécnica<br>Network virtualisation is seen as a promising approach to overcome the so-called “Internet impasse” and bring innovation back into the Internet, by allowing easier migration towards novel networking approaches as well as the coexistence of complementary network architectures on a shared infrastructure in a commercial context. Recently, the interest from the operators and mainstream industry in network virtualisation has grown quite significantly, as the potential benefits of virtualisation became clearer, both from an economical and an operatio
APA, Harvard, Vancouver, ISO, and other styles
16

Zaman, Saiful Islam. "Integral equation formulations of exterior acoustic scattering problems." Thesis, City University London, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238758.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Xiros, Nikolaos I. "Mathematical Formulation of Fusion Energy Magnetohydrodynamics." ScholarWorks@UNO, 2017. https://scholarworks.uno.edu/td/2438.

Full text
Abstract:
Chapter 1 presents the basic principles of Controlled Thermonuclear Fusion, and the approaches to achieve nuclear fusion on Earth. Furthermore, the basic components of the Tokamak, the reactor which will house the fusion reaction, are analyzed. Finally, the chapter ends with a discussion on how the present thesis is related to the Controlled Thermonuclear Fusion. Chapter 2 introduces briefly the basic concepts of the Electromagnetic and Magnetohydrodynamic theories as well as MHD turbulence. Chapter 3 presents a first glance in OpenFOAM CFD library. Chapter 4 introduces the Orszag-Tang vortex
APA, Harvard, Vancouver, ISO, and other styles
18

Lindqvist, Joakim. "Performance Comparisons of IP Problem Formulation." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-189024.

Full text
Abstract:
When solving optimization problems, the importance of speed can not be emphasized enough for many organizations. One company encountered a major performance difference when solving a problem with the same integer programming solver, in two different locations. The difference was shown not to be caused by the environment of the solver, but rather a reformulation of the problem. However, the reformulation did not improve the performance of an expanded version of the problem. By analyzing and comparing the two versions one might be able to find the properties  of a problem which enables the refor
APA, Harvard, Vancouver, ISO, and other styles
19

Diaz, Martinez Felix. "Collective formulation in problem-oriented talk." Thesis, Lancaster University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343628.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Tannahill, Samuel Coulter. "The school timetabling problem : a new formulation." Thesis, University of Strathclyde, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250706.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Wong, Tsun-hin John, and 黃浚軒. "Formulation of the study problem and transfer in insight problem solving." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B30280114.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Butler, Brooks A. "Formulating a Crowd State Prediction Problem for Application to Crowd Control." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8718.

Full text
Abstract:
This project considers a new application of crowd control, namely, keeping the public safe during large scale demonstrations. This problem is difficult for a variety of reasons, including limited access to informative sensing and effective actuation mechanisms, as well as limited understanding of crowd psychology and dynamics. This project takes a first step towards solving this problem by formulating a crowd state prediction problem in consideration of recent work involving crowd behavior identification, crowd movement modeling, and crowd psychology modeling. We build a non-linear crowd beh
APA, Harvard, Vancouver, ISO, and other styles
23

kahwaji, janho michel E. "FORMULATION AND USE OF A PERVAPORATION MATHEMATICAL MODEL." Cleveland State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1432111781.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Gill, Averlyn Penelope Pedro. "The beliefs of educational administrators about problem formulation." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/26041.

Full text
Abstract:
This study developed a scale for use in assessing administrators' beliefs about problem formulation behaviour, examined selected aspects of its construct validity, and used the scale in an exploratory study to assess the problem formulation beliefs of educational administrators. Based on theoretical and empirical studies of problem formulation (Allal, 1973; Getzels and Csikszentmihalyi, 1976) and the theory of Cognitive Orientation (Kreitler and Kreitler, 1972; 1976) a conceptual framework was developed in which four kinds of beliefs could be held about each of four component behaviours of pr
APA, Harvard, Vancouver, ISO, and other styles
25

SANTOS, JOSE CARLOS LEITE DOS. "A MATHEMATICAL FORMULATION OF THE THEORY OF GRANULAR MATERIALS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1987. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33274@1.

Full text
Abstract:
O propósito deste trabalho é propor um modelo teórico axiomático, que descreva o comportamento termomecânico de materiais granulares, fundamentado em uma descrição física simples, do que entende-se por material granular. No capítulo I, faz-se uma revisão bibliográfica, objetivando uma visão geral do estado da arte e delinear a importância do estudo de materiais granulares. No capítulo II, utiliza-se um método axiomático estabelecendo-se as equações de balanço que descrevem o comportamento termodinâmico de materiais granulares. No capítulo III, utilizando-se um outro método axiomático, analisa-
APA, Harvard, Vancouver, ISO, and other styles
26

Momanyi, Erick. "The Mathematical Formulation and Practical Implementation of Markowitz 2.0." Thesis, Mälardalens högskola, Akademin för utbildning, kultur och kommunikation, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-34690.

Full text
Abstract:
Standard Deviation is a commonly used risk measures in risk management and portfolio optimization. Optimal portfolios have normally been computed using standard deviation as the measure of choice for risk. However, ever since the Great Recession, it has come up short in capturing tail risk leading practitioners and investors alike to look for alternative measures such as Value-at-Risk (VaR) and conditional Value-at-Risk (CVaR). Further, given that it is a coherent risk measure and that it allows for a simplification of the portfolio optimization process, CVaR is preferable to VaR. This thesis
APA, Harvard, Vancouver, ISO, and other styles
27

Jeftha, Lindsey. "A mathematical formulation of intelligent agents and their activities." Thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/6755.

Full text
Abstract:
Includes bibliography: leaves 119-126.<br>The task of optimising a collection of objective functions subject to a set of constraints is as important to industry as it is ubiquitous. The importance of this task is evidenced by the amount of research on this subject that is currently in progress. Although this problem has been solved satisfactorily in a number of domains, new techniques and formalisms are still being devised that are applicable in fields as diverse as digital filter design and software engineering. These methods, however, are often computationally intensive, and the heavy relian
APA, Harvard, Vancouver, ISO, and other styles
28

FREY, SERGIO LUIZ. "A FINITE ELEMENT FORMULATION FOR THE NAVIER-STOKES PROBLEM." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1991. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=19805@1.

Full text
Abstract:
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Métodos estabilizados de elementos finitos são propostos e analisados para problemas de fluidos, com particular ênfase nas equações de Navier-Stokes incomprenssível. Após a apresentação da mecânica dos escoamentos dos fluidos, introduzimos no Capítulo 3, no contexto de problema de Stokes, as dificuldadas numéricas associadas ao método de Galerkin em problemas de fluidos e simulamos em sucesso alguns escoamentos lentos através de formulações finitos para estabilizadas
APA, Harvard, Vancouver, ISO, and other styles
29

Carlo, Les. "Problem-formulation in a South African organization : executive summary." Thesis, University of Warwick, 2012. http://wrap.warwick.ac.uk/54462/.

Full text
Abstract:
Complex Problem Solving is an area of cognitive science that has received a good amount of attention, but theories in the field have not progressed accordingly. In general, research of problem solving has focussed on identifying preferable methods rather than on what happens when human beings confront problems in an organizational context Queseda, Kirtsch and Gomez (2005) Existing literature recognises that most organizational problems are ill-defined. Some problems can become well-defined whereas others are and remain ill-structured. For problems that can become well-defined, failure to pay a
APA, Harvard, Vancouver, ISO, and other styles
30

Orr, Marc Stewart. "A Logic Formulation for the QCA Cell Arrangement Problem." PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/438.

Full text
Abstract:
Some people believe that IC densities are approaching the fundamental limits inherent to semiconductor technologies. One alternative to semiconductors is Quantum-dot Cellular Automata (QCA); QCA is a nanotechnology that offers the potential to build denser IC's that switch at higher frequencies and run on lower power. QCA's most basic building block, the QCA cell, is inherently binary; digital circuits are implemented by arranging these QCA cells in pre-defined configurations on a two dimensional plane. This paper proposes a logic formulation that describes arranging QCA cells on a two dimensi
APA, Harvard, Vancouver, ISO, and other styles
31

Cheng, Elizabeth. "Cognitive styles and mathematical problem solving." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297974.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Yee, Sean P. "Students' Metaphors for Mathematical Problem Solving." Kent State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=kent1340197978.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Druma, Calin. "Formulation of steady-state and transient potential problems using boundary elements." Ohio : Ohio University, 1999. http://www.ohiolink.edu/etd/view.cgi?ohiou1175886094.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Smith, Jonathan Cole. "Tight Discrete Formulations to Enhance Solvability with Applications to Production, Telecommunications, and Air Transportation Problems." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/26710.

Full text
Abstract:
In formulating discrete optimization problems, it is not only important to have a correct mathematical model, but to have a well structured model that can be solved effectively. Two important characteristics of a general integer or mixed-integer program are its size (the number of constraints and variables in the problem), and its strength or tightness (a measure of how well it approximates the convex hull of feasible solutions). In designing model formulations, it is critical to ensure a proper balance between compactness of the representation and the tightness of its linear relaxation, in or
APA, Harvard, Vancouver, ISO, and other styles
35

TANAKA, Eiichi, Sota YAMAMOTO, Yoichi AOKI, Takahiro OKADA, and Hiroshi YAMADA. "Formulation of a Mathematical Model for Mechanical Bone Remodeling Process." The Japan Society of Mechanical Engineers, 2000. http://hdl.handle.net/2237/9117.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Grodal, Evert Olaus. "Designing primary hydrocarbon production separation systems : a mathematical programming formulation." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/12084.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Dawes, Michael W. "The formulation and validation of mathematical models of calcium metabolism." Thesis, City University London, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237825.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Nambiar, Arun N. "MATHEMATICAL FORMULATION AND SCHEDULING HEURISTICS FOR CYCLIC PERMUTATION FLOW-SHOPS." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1183424961.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Lu, Ming 1968. "A Lagrangian formulation of the Euler equations for subsonic flows /." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103268.

Full text
Abstract:
This thesis presents a Lagrangian formulation of the Euler equations for subsonic flows. A special coordinate transformation is used to define the Lagrangian coordinates, namely the stream function and the Lagrangian distance, in function of the Cartesian coordinates. This Lagrangian formulation introduces two new geometry state variables, and a Lagrangian behavior parameter defining a pseudo-Lagrangian time used during the iteration procedure to obtain the solution for subsonic flows.<br>The eigenstructure and characteristics analysis for the new system of equations is based on a linear Jacob
APA, Harvard, Vancouver, ISO, and other styles
40

Furtado, Guilherme Phillips. "Formulation of impedance control strategy as an optimal control problem." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3152/tde-05022019-153033/.

Full text
Abstract:
A formulation of impedance control for redundant manipulators is developed as a particular case of an optimal control problem. This formulation allows the planning and design of an impedance controller that benets from the stability and eficiency of an optimal controller. Moreover, to circumvent the high computational costs of computing an optimal controller, a sub-optimal feedback controller based on the state-dependent Ricatti equation (SDRE) approach is developed. This approach is then compared with the quadratic programming (QP) control formulation, commonly used to resolve redundancy of r
APA, Harvard, Vancouver, ISO, and other styles
41

Bruce, Henrik. "Formulation of Model Problem for Chirality Induced Spin Selectivity Effect." Thesis, Uppsala universitet, Materialteori, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414026.

Full text
Abstract:
Spin dependent electron transport in chiral molecules, the so-called chirality induced spin selectivity (CISS) effect, have attracted much attention over the past few years. Experimentally the spin polarization has been detected, and there is a theoretical consensus on the necessity of both spin-orbit coupling and geometrical helicity in order to get a non-vanishing spin polarization. Several model Hamiltonians has been proposed to describe the CISSS effect, and while they can yield spin polarization agreeing with the experimentally observed magnitudes, they are relying on unrealistic values o
APA, Harvard, Vancouver, ISO, and other styles
42

Facca, Enrico. "Biologically inspired formulation of Optimal Transport Problems." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3423147.

Full text
Abstract:
In this thesis we propose a model that we conjecture is a new and original formulation of the Optimal Transport Problem, a recently expanding area of mathematics that studies optimal strategies to move resources from one place to another. The proposed approach is an infinite-dimensional extension of a model describing the dynamics of Physarum Polycephalum (PP), a slime mold with surprising abilities to find the shortest path connecting two food sources. The original model describes the dynamics of the slime mold on a finite planar graph using a pipe-flow analogy whereby mass transfer occurs
APA, Harvard, Vancouver, ISO, and other styles
43

Louati, Kaouthar. "Modèles Mathématiques pour l'Inspection Nondestructive des Pipelines." Phd thesis, Ecole Polytechnique X, 2006. http://tel.archives-ouvertes.fr/tel-00125751.

Full text
Abstract:
Dans les trois premiers chapitres de ce manuscrit de thèse, On propose trois nouvelles méthodes pour l'identification et la localisation des corrosions internes dans les pipelines. La première est par impédance électrique, la deuxième est par ondes guidées ultrasoniques et la troisième est par ultrasons.<br />On jette les bases mathématiques de ces différentes méthodes et on présente quelques tests numériques qui montrent leur efficacité.<br />Notre approche rentre dans la stratégie asymptotique développée au CMAP pour la résolution des problèmes inverses d'une manière robuste et stable. On ex
APA, Harvard, Vancouver, ISO, and other styles
44

Krawec, Jennifer Lee. "Problem Representation and Mathematical Problem Solving of Students of Varying Math Ability." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/455.

Full text
Abstract:
The purpose of this study was to examine differences in math problem solving among students with learning disabilities (LD), low-achieving (LA) students, and average-achieving (AA) students. The primary interest was to analyze the problem representation processes students use to translate and integrate problem information as they solve math word problems. Problem representation processes were operationalized as (a) paraphrasing the problem and (b) visually representing the problem. Paraphrasing accuracy (i.e., paraphrasing relevant information, paraphrasing irrelevant linguistic information,
APA, Harvard, Vancouver, ISO, and other styles
45

Kim, Jeong Hoon. "Stochastic turning point problem." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/40038.

Full text
Abstract:
A one-dimensional refractive, randomly-layered medium is considered in an acoustic context. A time harmonic plane wave emitted by a source is incident upon it and generates totally reflected fields which consist of "signal" and "noise". The statistical properties, i.e., mean and correlation functions, of these fields are to be obtained. The variations of the medium structure are assumed to have two spatial scales; microscopic random fluctuations are superposed upon slowly varying macroscopic variations. With an intermediate scale of the wavelength, the interplay of total internal reflection (g
APA, Harvard, Vancouver, ISO, and other styles
46

Miller, Catherine Marie 1959. "Teachers as problem solvers/problem solvers as teachers: Teachers' practice and teaching of mathematical problem solving." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/282150.

Full text
Abstract:
This study investigated the relationship among three high school mathematics teachers definitions and beliefs about mathematical problem solving, their problem solving practices and how they teach mathematical problem solving. Each teacher was interviewed three times and observed once during a problem solving lesson. Data comprised of transcriptions of audio tapes, field notes, and completed problem solving checklists were used to prepare the case studies. While the definitions, practices and teaching of the teachers varied, the findings were consistent within each case. The results suggest th
APA, Harvard, Vancouver, ISO, and other styles
47

Robinson, Martin J. "A logical formulation of the 3D reconstruction problem using volumetric framework /." [St. Lucia, Qld.], 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17245.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Ramahi, Muhannad Hasan. "Resident Scheduling Problem." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/37057.

Full text
Abstract:
This thesis is concerned with the Resident Scheduling Problem (RSP) in which a good schedule is desired that will meet both departmental requirements and residents' preferences. Three scenarios that represent most situations and account for various departmental requirements and needs are described. Although similar scheduling problems are considered in the literature, no analysis exists that adequately deals with this specific problem. The problem is modeled as a mixed-integer program (MIP) and heuristic solution procedures are developed for the different identified scheduling scenarios. Thes
APA, Harvard, Vancouver, ISO, and other styles
49

Ali, Habib K. "Mathematical modelling of the optimal power dispatch problem." Thesis, University of Strathclyde, 1990. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21285.

Full text
Abstract:
This thesis is concerned with the optimum operating conditions in a power system. The various aspects of the problem are modelled and solved as a number of optimization problems applying linear programming techniques. A generalized linear mathematical model has been developed for this purpose. A two-stage formulation is adopted to represent the various problems considered. In each case one power system quantity is chosen as an objective function to be optimized under a number of constraints and operating limits relating to the power system relationships and upper and lower bounds on the variab
APA, Harvard, Vancouver, ISO, and other styles
50

Wong, Man-on, and 黃萬安. "The effect of heuristics on mathematical problem solving." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31957523.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!