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This paper proposes a robust disturbance observer framework for maritime autonomous surface vessels considering model and measurement uncertainties. The core contribution lies in a nonlinear disturbance observer, reconstructing the forces on a vessel impacted by the environment. For this purpose...

The effect of different impurity elements on the microstructure of a series of Al alloys was studied by thermodynamic modelling using Thermo-Calc. The purpose is to better understand the effect of increased levels of certain elements in the alloys that may arise from the addition of more scrap...

This literature review summarises published studies on the effect of phosphorus in Al-Si hypoeutectic alloys up until year 2020. ...

CO₂ footprint for production of alloying elements in Aluminium have been collected from literature and calculated by the SimaPro Software using data available in the EcoInvent 3 Database....

To investigate the effects of wettability on multiphase flow in porous media, glass bead packs or micromodels are commonly used. Their wettability can be altered by the surface treatment method–silanization. Although silanization is widely used for glass wettability modification, comparable...

Filiform corrosion (FFC) is characteristic of metals such as aluminium and magnesium, usually takes place on coated metals, and spreads from coating defects in the form of filaments with a width on the order of 100 μm. In this work, in situ and operando Raman spectroscopy and optical microscopy were...

This paper discusses a novel approach for the exploration of an underwater structure. A team of robots splits into two roles: certain robots approach the structure collecting detailed information (proximal observers) while the rest (distal observers) keep a distance providing an overview of the...

Three hybrid ingots, where half the seed area was filled with fluidized bed reactor granules for high-performance multicrystalline silicon growth and the other half with monocrystalline slabs for mono-like growth, were made. The ingots were solidified in quartz crucibles with two different diffusion...

In this paper, we discuss how to effectively map an underwater structure with a team of robots considering the specific challenges posed by the underwater environment. The overarching goal of this work is to produce high-definition, accurate, photorealistic representation of underwater structures...

The ongoing digitalization of critical infrastructures enables more efficient processes, but also comes with new challenges related to potential cyber-physical attacks or incidents. To manage their associated risk, a precise and systematic framework should be adopted. This paper describes a general...