Browse Theses

In this thesis, we describe three contributions made to three different fields. First, we prove local stability of solutions to a 1D model equation of the 3D Euler equations. Second, we describe a model of human crowds where people are modeled ...

This thesis describes 1-D model of a Roots-type supercharger. The model is based on comprehensive 3-D geometrical analysis of the supercharger components using 3-D CAD software. 1-D unsteady model of irreversible changes respecting real gas ...

The p-shell hypernuclei have been studied in detail using two and three-body central Yukawa Λ-N interactions. Intermediate coupling and a range of density distributions are considered for the core nuclei. The Λ wave function and volume integrals ...

Given a set of strings, $S=\{ s\sb1,s\sb2,\...,s\sb{n}\},$ over a finite alphabet $\Sigma$, a common superstring of S is a string that contains each $s\sb{i}$ as a contiguous substring. The Shortest Common Superstring (SCS) problem is to find a common ...

Recentemente, Redes Neurais Artificiais (RNAs) têm sido desenvolvidas e aplicadas á pre visão e classificação de séries temporais devido á sua capacidade de modelação não linear. Redes Neurais Convolucionais ( CNNs do inglês Convolutional Neural ...

A temporal relational database model that supports queries on updates and errors is obtained by attaching 2-dimensional timestamps to data values. The two time dimensions represent real world time, the time when events take place in the real world, and ...

This thesis will describe attempts to use suitably substituted 2-imidazolines in Diels-Alder reactions. In order to synthesise these target 2-imidazolines a new and reliable method for the synthesis of 2-alkyl and 2-alkenyl-2-imidazolines has been ...

Part I. The chemistry of the 2:3-dihydro-3-oxo-benz-1:4-oxazines is reviewed, and a general method for their N-methylation developed. The possession of a feebly reactive methylene group is demonstrated in the formation of a benzylidene derivative ...

Today the design and manufacture of VLSI chips are stumbled by many challenges due to the aggressive scaling of feature size. Among different issues, such problems as long wire delay and hybrid technology integration could hardly be resolved inside the ...

As VLSI technology is shifting from microelectronics to the nanoelectronics era, bi-stable [2]rotaxane emerges as a promising candidate for molecular electronics. A typical voltage-driven [2]rotaxane consists of a cyclobis-(paraquat-p-phenylene) ...

Este trabalho propõe uma rede de curto alcance com um débito binário por utilizador superior a 200 Gbit/s utilizando fibras multi-núcleo (MCF) e recetores de Kramers-Kronig (KK) como solução alternativa às redes de curto alcance de elevada ...

The International Accounting Standards Board (IASB) has persistently rejected a role for asymmetric prudence (conservatism) in its Conceptual Framework (CF) while simultaneously acknowledging its selective relevance in standard setting, thus ...

In the course of this century meteorology has become a unified, physics-based, and highly computational science. This dissertation aims at explaining this transformation by examining the various roles of computation throughout the history of meteorology,...

In the 1960's and 70's in the US, thousands of independent schools opened as part of the "Free Schools" movement. A subset of these schools were founded with the intention of democratizing the school experience and producing graduates who would ...

The research in this dissertation examined the language and literacy practices of middle school children as they played Gamestar Mechanic, a game-based learning environment constituted by a flash-based multiplayer online role-playing game designed to ...

The instructional video viewing experience has been revolutionized by the advent of high definition images, large screen monitors, and portable playback technologies. Along with the myriad of playback choices comes the decades-long debate: Does the ...

Not Guilty by Reason of Insanity (NGRI) acquittees uniquely walk the line of involvement in both the criminal justice and mental health systems, both of which have literature indicating the presence of underlying racial biases related to practices ...

This thesis examines the challenges in contemporary media facing 24-hour global television news channels and their effects on news content and sustainability. Its focus is on three areas: (1) Changes in technology that affect the production of ...

This thesis presents a thorough investigation of the 2500th Anniversary Celebrations of the Founding of the Persian Empire by Cyrus the Great, held in Persepolis by the Shah of Iran in 1971. Since the time of the Celebrations they have been ...