413 research outputs found
Nominal and inflation-linked government bonds: An assessment of arbitrage opportunities in UK Gilt Market
A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and EconomicsThis study is an assessment of the existence of deviations of the Law of One Price in the UK sovereign debt market. UK government issues two types of debt instruments: nominal gilts and inflation-linked (IL) gilts. Constructing a synthetic bond comprising the IL bonds and also inflation-swaps and gilt strips I was able to build a portfolio that pays to investor exactly the same cash-flow as nominal gilts, with the same maturity. I found that the weighted-average mispricing throughout the period of 2006-11 is only £0,155 per £100 notional. Though, if I restrain my analysis to the 2008-09 crisis period, this amount raises to £4,5 per £100 invested. The weighted-average mispricing can reach values of £21 per £100 notional or, if measured in yield terms, 235 basis points. I have also found evidence that available liquidity on the market and increases on index-linked gilts supply do play a significant role on monthly changes of mispricing in the UK market. I concluded that, although the global mispricing is not significant on UK gilt market, every pair of bonds in the sample presented huge and significant arbitrage opportunities in downturn periods
Module 6: modernization of teaching
This topic will present Quality assurance (QA) standards of e-learning and has the following objectives:
Objective 1: to understand the meaning of e-learning quality and quality assurance
Objective 2: to distinguish several International Quality Assurance Frameworks for e-learning
Objective 3: to characterize the main specific features of Quality Assurance of MOOCs
Objective 4: to identify the main Standards and Guidelines for Quality Assurance of online Higher Education617496-EPP-1-2020-1-IT-EPPKA2-CBHE-JPinfo:eu-repo/semantics/publishedVersio
Sistemas genéricos de gestão de informação para mobilidade inteligente
Mestrado em Engenharia MecânicaO principal objetivo desta dissertação consiste no estudo, criação e implementação de um sistema genérico/conjunto de regras como base da expansibilidade configurável e reconfigurável de diferentes situações urbanas. A gestão e recolha de dados dinâmicos é um processo desafiante, principalmente num contexto de baixa penetração de dados flutuantes sobre veÃculos (FVD) e limitada disponibilidade de estações de monitorização de tráfego. Neste trabalho, foram selecionados três segmentos de vias rodoviárias de uma cidade portuguesa de média dimensão (Aveiro) para recolher dados dinâmicos do veÃculo ao longo de vários cenários de tráfego. Simultaneamente, os volumes de tráfego foram gravados em tempo real. O principal objetivo desta experiência piloto foi avaliar como seria possÃvel ler e prever os nÃveis de congestionamento de tráfego e emissões com informações limitadas e como devem ser geridos os dados de várias fontes de forma a correlacionar e lidar com esta informação em tempo real. Foi possÃvel correlacionar simultaneamente vários conjuntos de dados, tais como valores de congestionamento, distribuição de modo da potência especÃfica do veÃculo - VSP (que relaciona a dinâmica de um veÃculo com as suas emissões de poluentes), dados de tráfego Google e as emissões, de forma a antecipar o que acontece na infraestrutura rodoviária. Os resultados preliminares sugerem que, em artérias urbanas, o tempo de viagem e os nÃveis de congestionamento podem ser indicadores fiáveis para a estimativa das emissões em tempo real. No entanto, em secções de artérias não urbanas, devido a uma maior variabilidade dos padrões de condução, a estimativa do desempenho do tráfego em tempo real é mais complexa. São igualmente discutidas as questões-chave relativas à implementação de uma plataforma para análise de dados num contexto urbano
Convergence to self-similarity in an addition model with power-like time-dependent input of monomers
In this note we extend the results published in Ref. 1 to a coagulation system with Becker-Doring type interactions and time-dependent input of monomers of power–like type: as , with and . The general framework of the proof follows Ref. 1 but a different strategy is needed at a number of points
Unitel e-course lecture notes module 5: assessment and feedback as a part of teaching and learning
This topic will present a framework for digital assessment and has the following objectives:
Objective 1: To characterize the new culture of assessment, differentiating it from the
traditional assessment culture
Objective 2: To identify the main dimensions and parameters of the PrACT framework for
digital assessment
Objective 3: Analyze the concept of regulated learning and its relationship with Peer and SelfAssessment in Higher Education
Objective 4: To distinguish digital tools, instruments and means of assessment
Objective 5: To design a Digital Assessment PlanErasmus + Programme of the European Unioninfo:eu-repo/semantics/publishedVersio
Bifurcations analysis of the twist-Fréedericksz transition in a nematic liquid-crystal cell with pre-twist boundary conditions: the asymmetric case
In the paper, Bifurcation analysis of the twist-Fréedericksz transition in a nematic liquid-crystal cell with pre-twist boundary conditions (2009 Eur. J. Appl. Math. 20, 269–287) by da Costa et al. the twist-Fréedericksz transition in a nematic liquid-crystal one-dimensional cell of lenght L was studied, imposing an antisymmetric net twist Dirichlet condition at the cell boundaries. In the present paper, we extend that study to the more general case of net twist Dirichlet conditions without any kind of symmetry restrictions. We use phase-plane analysis tools and appropriately defined time maps to obtain the bifurcation diagrams of the model when L is the bifurcation parameter, and related these diagrams with the one in the antisymmetric situation. The stability of the bifurcating solutions is investigated by applying
the method of Maginu (1978 J. Math. Anal. Appl. 63, 224–243).info:eu-repo/semantics/publishedVersio
Advising students with complex trajectories: a practical handbook
The Complex Trajectories project is funded by European Union Erasmus+ grant agreement No. KA203-082842, 2020-2023.info:eu-repo/semantics/publishedVersio
Implementação do Projecto Kaizen na Amorim &=e Irmãos, S. A.
Estágio realizado na Amorim & Irmãos, S. A. e orientado pelo Eng.º LuÃs EstevesTese de mestrado integrado. Engenharia Industrial e Gestão. Faculdade de Engenharia. Universidade do Porto. 200
New control algorithm for single-phase series active power filter
This paper presents a single-phase Series Active Power Filter (Series APF) for mitigation of the load voltage harmonic content, while maintaining the voltage on the DC side regulated without the support of a voltage source. The proposed series active power filter control algorithm eliminates the additional voltage source to regulate the DC voltage, and with the adopted topology it is not used a coupling transformer to interface the series active power filter with the electrical power grid. The paper describes the control strategy which encapsulates the grid synchronization scheme, the compensation voltage calculation, the damping algorithm and the dead-time compensation. The topology and control strategy of the series active power filter have been evaluated in simulation software and simulations results are presented. Experimental results, obtained with a developed laboratorial prototype, validate the theoretical assumptions, and are within the harmonic spectrum limits imposed by the international recommendations of the IEEE-519 Standard
- …