In this work we address the modeling of multi-port subsystems with unknown inner dynamics by utilizing vector fitting to identify state-space models for performing eigenvalue-based analysis. Vector fitting is used to characterize frequency responses obtained from frequency domain analysis, for...
Guanidine-containing molecules are an interesting class of compounds within both medicinal and material sciences. Having knowledge of their tautomerism is key in designing guanidines that interact with biological and chemical receptors. However, there are limited data on the solid-phase structure of...
Determination of a sealant material’s ability to provide zonal isolation is important. Any potential well barrier material should ideally be tested and optimized under controlled, reproducible, and relevant conditions. Recent advances in experimental methods for qualification of materials beyond the...
Lithium-sulfur (Li-S) batteries are known as a next-generation energy storage technology due to their high theoretical energy density and low cost. However, the shuttling of soluble lithium polysulfides (LPS) between electrodes hinders the practical realization of Li-S batteries, resulting in short...
To meet the new regulation for the deployment of alternative fuels infrastructure which sets targets for electric recharging and hydrogen refuelling infrastructure by 2025 or 2030, a large infrastructure comprising truck-suitable hydrogen refuelling stations will soon be required. However, further...
The application of chemical looping for reverse water gas-shift provides an efficient way for the conversion of CO2 to CO, enabling the transformation of captured CO2 into value-added products. For example, by using the produced CO along with renewable H2 to synthesise liquid fuels. In this study...
Reducing the number of stages, energy costs and carbon footprint of recycling processes is essential to overcome environmental challenges. The interest in replacing the acids used in traditional hydrometallurgical methods with deep eutectic solvents (DES), which are less toxic and more...
Energy flexibility in buildings has the potential to reduce the grid burden of neighbourhoods, yet its practical implementation remains limited. This paper presents a data-based case study from Norway, examining the electricity flexibility potential of electric vehicles, within the context of...
This project examines the practices of six Norwegian municipalities, which, in a variety of ways, are trying to enable mentally disabled residents to build or buy their own homes. The survey has confirmed some previous findings: The financing model operated by the Norwegian State Housing Bank makes...
Carbonation development and reinforcement corrosion were investigated on concretes exposed for a five-year period at 90% RH, 20 ℃, and 5% CO2, and for a six-year period at natural carbonation. Portland cement-based binders with 0%, 18%, and 30% fly ash were investigated. The fly ash blends showed...