Estudo, conce����o e desenvolvimento de um equipamento industrial para coloca����o autom��tica de produtos alimentares em cuvetes

Disserta����o de mestrado em Engenharia Mec��nica

Conce����o t��cnica e avalia����o econ��mica de um ve��culo solar para venda de produtos refrigerados

Disserta����o de mestrado integrado em Engenharia Mec��nica

PCBA external workbench evaluation procedure

Disserta����o de mestrado integrado em Mechanical Engineering

A cadeia produtiva de alimentos org��nicos no vale do rio Cuiab��

Disserta����o de mestrado em Estudos de Gest��o

Evaluation of temperature influence on embedded kinematic system

Disserta����o de mestrado integrado em Engenharia Mec��nica

Corte t��rmico: or��amenta����o de produtos e racionaliza����o do processo

Disserta����o de mestrado integrado em Engenharia Mec��nica

Estudo e implementa����o de testes de software em desenvolvimento ��gil

Disserta����o de mestrado em Engenharia de Sistemas

Produtos de hidrata����o em argamassas geopolim��ricas �� base de argila da Tun��sia para repara����o de estruturas de concreto

A repara����o de estruturas degradadas de concreto representa uma oportunidade para a ind��stria da constru����o mas tamb��m um desafio para a comunidade cient��fica. O desenvolvimento de novas argamassas de repara����o constitui por isso uma importante ��rea de investiga����o. Os geopol��meros s��o ligantes inovadores alternativos ao cimento Portland pelo que as argamassas �� base destes materiais, geopol��m��ricas, apresentam algumas potencialidades no campo da repara����o das estruturas de concreto. O presente artigo apresenta resultados de uma investiga����o sobre o desenvolvimento de argamassas geopolim��ricas �� base de uma argila da Tun��sia sujeita a tratamento t��rmico. �� inclu��da uma an��lise da argila e tamb��m dos produtos de hidrata����o da argamassa os quais apresentam fases geopolim��ricas t��picas.

Frameworks no desenvolvimento de software: o caso da Elevation da PRIMAVERA BSS

Disserta����o de mestrado integrado em Engenharia e Gest��o de Sistemas de Informa����o

Single line for assembly just-in-sequence multiple models

Programa Doutoral em L��deres para as Ind��strias Tecnol��gicas

Aplica����o da linha de equil��brio no planeamento e controlo da constru����o

Disserta����o de mestrado integrado em Engenharia Civil

Algorithms and computational tools for metabolic flux analysis

PhD thesis in Biomedical Engineering

Feature Nets: behavioural modelling of software product lines

Software product lines (SPL) are diverse systems that are developed using a dual engineering process: (a)family engineering de���nes the commonality and variability among all members of the SPL, and (b) application engineering derives speci���c products based on the common foundation combined with a variable selection of features. The number of derivable products in an SPL can thus be exponential in the number of features. This inherent complexity poses two main challenges when it comes to modelling: Firstly, the formalism used for modelling SPLs needs to be modular and scalable. Secondly, it should ensure that all products behave correctly by providing the ability to analyse and verify complex models e���ciently. In this paper we propose to integrate an established modelling formalism (Petri nets) with the domain of software product line engineering. To this end we extend Petri nets to Feature Nets. While Petri nets provide a framework for formally modelling and verifying single software systems, Feature Nets o���er the same sort of bene���ts for software product lines. We show how SPLs can be modelled in an incremental, modular fashion using Feature Nets, provide a Feature Nets variant that supports modelling dynamic SPLs, and propose an analysis method for SPL modelled as Feature Nets. By facilitating the construction of a single model that includes the various behaviours exhibited by the products in an SPL, we make a signi���cant step towards e���cient and practical quality assurance methods for software product lines.

From software extensions to product lines of dataflow programs

Abstract Dataflow programs are widely used. Each program is a directed graph where nodes are computations and edges indicate the flow of data. In prior work, we reverse-engineered legacy dataflow programs by deriving their optimized implementations from a simple specification graph using graph transformations called refinements and optimizations. In MDE-speak, our derivations were PIM-to-PSM mappings. In this paper, we show how extensions complement refinements, optimizations, and PIM-to-PSM derivations to make the process of reverse engineering complex legacy dataflow programs tractable. We explain how optional functionality in transformations can be encoded, thereby enabling us to encode product lines of transformations as well as product lines of dataflow programs. We describe the implementation of extensions in the ReFlO tool and present two non-trivial case studies as evidence of our work���s generality

Previs��o de cheias em Barcelos

Disserta����o de mestrado integrado em Engenharia Civil