Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 17 of 17 for “"generalized theory"”.
-
Generalized theory of static power frequency changers
The thesis is concerned with static frequency changers, using solid-state switching devices, capable of directly (i.e. without an intermediate dc link) converting polyphase ac power of a given frequency to single or polyphase power of a chosen frequency. The thesis consists of two parts. The first …
-
Towards a generalized theory of deductive databases with uncertainty
Uncertainty management is identified as a challenging issue in databases [SSU91]. Logic database programming, with its declarative advantage and its powerful top-down and bottom-up query processing techniques has attracted the attention of researchers, and numerous logic frameworks with uncertainty …
-
Toward a unified view of complex multiscale stochastic systems: A generalized theory of interactions and its computational infrastructure for their universal and efficient investigation
… at a larger scale (macroscale) through theory development, cyberinfrastructure and case studies. Three studies contained here suggest that placing interactions as a central construct --instead of objects and laws- simplifies the analysis of CMSS and brings clarity across the formal …
-
ΣΥΜΒΟΛΗ ΣΤΗΝ ΑΝΤΙΜΕΤΩΠΙΣΗ ΠΡΟΒΛΗΜΑΤΩΝ ΤΗΣ ΖΕΥΓΜΕΝΗΣ ΚΑΙ ΓΕΝΙΚΕΥΜΕΝΗΣ ΘΕΡΜΟΕΛΑΣΤΙΚΟΤΗΤΑΣ
… DESCRIPTION OF THE PROBLEM OF COUPLED AND GENERALIZED THEORY OF THERMOELASTICITY. IN THEFRAMEWORK OF THE COUPLED THERMOELASTICITY THE PROBLEMS OF VIBRATION OF BERNOULLI- EULER AND TIMOSHENKO BEAM AND THE PROBLEM OF AN INFINITE MEDIUM (X1, X2 [- , ], X3 FINITE) HAVE BEEN STUDIED BY USING …
-
Contributions to the Theory of Non-Equilibrium Thermodynamics
… is to present a generalization of the current theory of non-equilibrium thermodynamics. The current theory was presented in 1953 by Onsager and Machlup, its mathematical context goes back to the 1930 paper of Uhlenbeck and Ornstein on Brownian motion, and the physical foundations for that …
-
A Method to Compute Three Dimensional Magnetospheric Equilibria with Dipole Tilt and its Application in Estimating Magnetic Flux Tube Volume
… the magnetopause In addition, we present a generalized theory for calculating magnetic flux tube volume in the magnetotail, in an attempt to generalize the Wolf [2006] empirical formula, and describe a method for estimating flux tube volume from measurements at geosynchronous orbit. This new …
-
Calculo de esfuerzos en placas planas sometidas a flujo turbulento
… system. The method of solution makes use of the generalized harmonic analysis and series expansions in terms of the set of orthogonal functions associated with the normal modes of vibration of the system. 0n the basis of experimental data of Aupperle and Lambert and of the generalized theory, …
-
Goodwillie calculus and algebras over a spectral operad
The overall goal of this thesis is to apply the theory of Goodwillie calculus to the category Algo of algebras over a spectral operad. Its first part generalizes many of the original results of Goodwillie in [14] so that they apply to a larger class of model categories and hence be applicable to …
-
Study of the general theories of gravitation: Lovelock-Cartan-Horndeski Gravity
We explore generalized gravitational theories that have at most second-order equations of motion in the metric. In this way comes Lovelock’s theory, which is the generalization of General Relativity and describes a gravitational theory in arbitrary dimensions. The next step is to include more …
-
Optical and Spin Properties of Defect-Bound Excitons in Semiconductors
… of defect properties, motivating us to develop a generalized theory of spontaneous emission from multi-carrier bound excitons. We apply this theory to the neutral-acceptor bound exciton, finding three distinct radiative lifetimes. Next, we utilize our knowledge of bound-exciton transitions to …
-
Nonhomogeneous Initial Boundary Value Problems for Two-Dimensional Nonlinear Schrodinger Equations
… from the original equation by semi-group theory and then perform the Banach fixed-point argument. However, along the process, it is essential to select proper auxiliary function spaces and prepare all the corresponding norm estimates to complete the argument. In fact, the IBVP posed on R x …
-
Comparison of Anthropometric Measures of Competitive Bodybuilders to Judges' Scores and a Comparison of Judges' Scores
… repeated measures analysis of variance, and the generalized theory for inter-rater reliability. There were significant correlations between the Elite judges' rankings and bodyfat in the Men's Open lightweight class. The Trained and Elite judges' rankings were significantly correlated with bodyfat …
-
Psychoacoustic Entropy Theory and Its Implications for Performance Practice
… motivate, derive and imply potential uses for a generalized perceptual theory of musical harmony called psychoacoustic entropy theory. This theory treats the human auditory system as a physical system which takes acoustic measurements. As a result, the human auditory system is subject to all the …
-
Sound field reproduction
… sound field with an array of loudspeakers. A theory based on functional analysis and the theory of<br/>integral equations is developed for the study of this problem. An attempt is made to develop a mathematical framework that can be adopted as a generalized theory of sound field reproduction. …
-
Modeling human attention and performance in automated environments with low task loading
… three hypotheses shows that the PAL model is a generalized theory that could explain behaviors under low task load in different supervisory control settings. Finally, benefits, limitations, generalizability and applications of the PAL model were evaluated. Further research is needed to improve …
-
Interfaces and Fluctuations in Diblock Copolymer Melts and Ternary Mixtures with Homopolymers
Self-consistent field theory (SCFT) is a powerful tool for study of equilibrium phase behavior of block copolymer melts and mixtures. However, it fails to take into account the effect of fluctuations. This leads to some incorrect predictions for the phase behavior including the nature and location …
-
Microscopic theory for dynamics in entangled polymer nanocomposites
… focuses on developing a novel dynamical theory for a liquid of infinitely-thin rods in the presence of hard spherical obstacles, aiming at a technical and conceptual extension of the existing paradigm for entangled polymer dynamics. As a fundamental theoretical development, the …