Exploració per tema "Equations"
Ara es mostren els items 1-20 de 28
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A Method for the Complete Set of Solutions of the Finite-Position Synthesis Problem
(Springer, 2022)
Capítol de llibre
Accés restringit per política de l'editorialThe equations that appear in the formulation of finite-position synthesis problems tend to increase their complexity and become quite large when solving for multiple-joint systems. In this work, we create a new set of ... -
A Taylor error propagation approach for Structural System Identification by Observability Method
(Universitat Politècnica de Catalunya, 2019-07-08)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorSistemas estocásticos de ecuaciones aplicado a la identificación de sistemas estructurales -
An explicit method for modeling lossy and dispersive transmission lines
(Microwave Exhibitions and Publishers, 1993)
Text en actes de congrés
Accés obertIn this paper, an explicit -non iterative- method for modeling lossy and dispersive transmission lines, allowing the inclusion of skin-effect parameters is described. This method, based on multipoint Padé approximation, ... -
An extension of Vickrey Commute Model by means of the Macroscopic Fundamental Diagram (MFD)
(Universitat Politècnica de Catalunya, 2019-02-20)
Projecte Final de Màster Oficial
Accés obertEl model de Vickrey s'ha utilitzat per gestionar el trànsit en una infrastructura que presenti un coll d'ampolla (problema unidimensional). La idea del TFM és ampliar el model de Vickrey a una àrea urbana (barri, prob. ... -
An interval NLPV parity equations approach for fault detection and isolation of a wind farm
(Institute of Electrical and Electronics Engineers (IEEE), 2014-12-25)
Article
Accés obertIn this paper, the problem of fault diagnosis of a wind farm is addressed using interval nonlinear parameter varying (NLPV) parity equations. Fault detection is based on the use of parity equations assuming unknown but ... -
Arbitrary wave synthesis using spectral transformations
(Institute of Electrical and Electronics Engineers (IEEE), 1993)
Text en actes de congrés
Accés obertThe different transformations among plane, cylindrical and spherical spectrum allow to tackle the arbitrary field synthesis from a set of known sources. Putting all the spectrums in the same coordinate axis we can obtain ... -
Cepstrum constraints in ME spectral estimation
(Institute of Electrical and Electronics Engineers (IEEE), 1983)
Text en actes de congrés
Accés obertCurrent trends in spectral estimation techniques follow basicaly two guidelines; by introducing modifications in the objctive function to be minimized or, keeping the objetive, by modifying the set of constraints in the ... -
Development of self-calibration techniques for on-wafer and fixtured measurements: a novel approach
(. MICROWAVE EXHIBITIONS AND PUBLISHERS, 1992)
Text en actes de congrés
Accés obertNetwork Analyzer self-calibration techniques - TRL, LMR, TAR- are developed, implemented and compared in several transmission media. A novel LMR (Line-Match-Reflect) technique based on known LINE and REFLECT Standards, is ... -
Evaluation of A+B=K conditions without carry propagation
(Institute of Electrical and Electronics Engineers (IEEE), 1992-11)
Article
Accés obertThe response time of parallel adders is mainly determined by the carry propagation delay. The evaluation of conditions of the type A+B=K is addressed. Although an addition is involved in the comparison, it is shown that ... -
Frozen Jacobian iterative method for solving systems of nonlinear equations: application to nonlinear IVPs and BVPs
(2016-12-01)
Article
Accés restringit per política de l'editorialFrozen Jacobian iterative methods are of practical interest to solve the system of nonlinear equations. A frozen Jacobian multi-step iterative method is presented. We divide the multi-step iterative method into two parts ... -
Gestió de la mobilitat en àrees urbanes mitjançant tarifació i ramp metering
(Universitat Politècnica de Catalunya, 2019-01-25)
Projecte Final de Màster Oficial
Accés obertEl model de Vickrey s'ha utilitzat per gestionar el trànsit en una infrastructura que presenti un coll d'ampolla (problema unidimensional). La idea del TFM és ampliar el model de Vickrey a una àrea urbana (barri, prob. ... -
Leak simulation system for testing of early refrigerant detection devices
(Universitat Politècnica de Catalunya, 2019-07-08)
Treball Final de Grau
Accés obert
Realitzat a/amb: AKOThis project has consisted in the design, engineering and construction of an automatic test and demonstration machine which attempts to simulate real gas leaks. More concretely it is based in the developing of a precise ... -
Matrices generadas por adición de díadas (matrices de rango 1): propiedades y aplicaciones
(Centro Internacional de Métodos Numéricos en Ingeniería, 1996)
Article
Accés obertSe estudian las matrices elementales de rango 1 (díadas). Para estas matrices se presentan fórmulas para su factorización, inversión, descomposición en valores propios y valores singulares. Estos resultados son aplicados ... -
Multi-step derivative-free preconditioned Newton method for solving systems of nonlinear equations
(2017-02-16)
Article
Accés obertPreconditioning of systems of nonlinear equations modifies the associated Jacobian and provides rapid convergence. The preconditioners are introduced in a way that they do not affect the convergence order of parent iterative ... -
Natural convection in a horizontal cylinder with axial rotation
(AMER PHYSICAL SOC, 2016-06-23)
Article
Accés obertWe study the problem of thermal convection in a laterally heated horizontal cylinder rotating about its axis. A cylinder of aspect ratio Gamma = H/2R = 2 containing a small Prandtl number fluid (sigma = 0.01) representative ... -
Navier-Stokes/Forchheimer models for filtration through porous media
(2013-10)
Article
Accés obertModeling the filtration of incompressible fluids through porous media requires dealing with different types of partial differential equations in the fluid and porous subregions of the computational domain. Such equations ... -
Non-linear deformations of porous elastic solids
(2013-03-01)
Article
Accés restringit per política de l'editorialThis paper is concerned with the non-linear theory of porouselastic bodies. First, we present the basic equations in general curvilinear coordinates. The constitutive equations for porouselastic bodies with incompressible ... -
On translating partial to total specifications with applications to theorem proving for partial specifications
(1989-09-12)
Report de recerca
Accés obertIn this paper it is shown how partial specifications (with strong equations) can be translated into total ones. This translation is proven to be sound and complete, in the sense that a theorem is valid for all models of ... -
Optimum self-reference spatial diversity processing for FDSS and FH communication systems
(Institute of Electrical and Electronics Engineers (IEEE), 2000)
Text en actes de congrés
Accés obertIn 1996, a new spread spectrum communication system, called Frequency Diversity Spread Spectrum (FDSS), was proposed as a system to mitigate the problems of the common spread spectrum techniques. In this paper, two blind ... -
Partitioning: an essential step in mapping algorithms into systolic array processors
(1987-07)
Article
Accés obertThe efficient solution of a large problem on a small systolic array requires good partitioning techniques to split the problem into subproblems that fit the array size.
