26 documents found, page 1 of 3
A genetic algorithm to optimize the dispatch of firefighting resources
Matos, Marina A.; Gonçalves, Rui; Rocha, Ana Maria A. C.; Costa, Lino; Alvelos, Filipe Pereira eThe significant increase in the number of forest fires has raised great interest in studying ways to decrease this number and optimization is one of the most used techniques. This type of methods allows the support of the combat means in fighting forest fires, improving the effectiveness and speed of the firefighters actions. Knowing how many and which resources to allocate to each fire is an important key to s...
Minimizing the impact of forest fires
Matos, Marina A.Forest fires are a growing environmental, social and economic threat, especially in regions with high vegetation density and frequent ignition occurrences. This thesis addresses the problem of optimizing the allocation of firefighting resources to minimize the impact of forest fires, focusing on scenarios with multiple simultaneous ignitions and limited resources. The research proposes and evaluates several app...
A simulation-based optimization approach to the firefighting resource schedulin...
Paiva, Emerson J.; Matos, Marina A.; Rocha, Ana Maria A. C.In recent years, the number of forest fires has increased significantly. The main factors behind these disasters are rising temperatures and population growth. Optimization and simulation have been widely applied to forest firefighting problems, making it possible to improve the effectiveness and speed of firefighting actions. This work presents a forest firefighting resource scheduling problem, where a single ...
A firefighting resource dispatch problem optimization using metaheuristics
Matos, Marina A.; Gonçalves, Rui; Rocha, Ana Maria A. C.; Costa, Lino; Alvelos, Filipe Pereira eForest fires are a growing concern in our planet, as they have been increasing in frequency and severity over the last few decades. It is therefore essential to manage firefighting in order to prevent and reduce the damage caused to life, the economy and ecosystems. This work deals with the forest firefighting resource dispatch problem using metaheuristics. It is essential to know when and which suppression res...
Resource dispatch optimization for firefighting using a differential evolution ...
Matos, Marina A.; Gonçalves, Rui; Rocha, Ana Maria A. C.; Costa, Lino; Alvelos, Filipe Pereira eThe incidence of forest fires has shown an upward trend in recent years. This increase can be attributed to rising ambient temperatures and population growth, which act as the primary catalysts for these disasters. The application of optimization techniques has significantly contributed to addressing forest firefighting challenges, enabling improvements in the efficiency and promptness of firefighting operation...
Build orientation optimization of car hoodvent with additive manufacturing
Matos, Marina A.; Rocha, Ana Maria A.C.; Costa, Lino; Pereira, Ana I.Additive manufacturing is a widely used process consisting in the building of a three-dimensional (3D) object from a model projected on a computer, adding the material layer-by-layer. This technology allows the printing of complex shape objects and is being increasingly adopted by the aircraft industry, medical implants, jewelry, footwear, automotive, fashion products, among others. The build orientation optimi...
Resource dispatch optimization for firefighting based on genetic algorithm
Matos, Marina A.; Rocha, Ana Maria A. C.; Costa, Lino; Alvelos, Filipe Pereira eThe number of forest fires has increased in recent years. Rising ambient temperatures and rising demographics are the main drivers of these disasters. Optimization has been widely applied in forest firefighting problems, allowing improvements in the effectiveness and speed of firefighters actions. In this work, a resource dispatch problem for forest firefighting (involving 7 resources to extinguish 20 ignitions...
A genetic algorithm for forest firefighting optimization
Matos, Marina A.; Rocha, Ana Maria A. C.; Costa, Lino; Alvelos, Filipe Pereira eIn recent years, a large number of fires have ravaged planet Earth. A forest fire is a natural phenomenon that destroys the forest ecosystem in a given area. There are many factors that cause forest fires, for example, weather conditions, the increase of global warming and human action. Currently, there has been a growing focus on determining the ignition sources responsible for forest fires. Optimization has b...
A statistical comparison of metaheuristics for unrelated parallel machine sched...
Antunes, Ana Rita; Matos, Marina A.; Rocha, Ana Maria A. C.; Costa, Lino; Varela, M.L.R.Manufacturing scheduling aims to optimize one or more performance measures by allocating a set of resources to a set of jobs or tasks over a given period of time. It is an area that considers a very important decision-making process for manufacturing and production systems. In this paper, the unrelated parallel machine scheduling problem with machine-dependent and job-sequence-dependent setup times is addressed...
Multi-objective optimization in the build orientation of a 3D CAD model
Matos, Marina A.; Rocha, Ana Maria A.C.; Costa, Lino; Pereira, Ana I.Over the years, rapid prototyping technologies have grown and have been implemented in many 3D model production companies. A variety of different additive manufacturing (AM) techniques are used in rapid prototyping. AM refers to a process by which digital 3D design data is used to build up a component in layers by depositing material. Several high-quality parts are being created in various engineering materials...