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We introduce the mean inverse integrator (MII), a novel approach that improves accuracy when training neural networks to approximate vector fields of dynamical systems using noisy data. This method can be used to average multiple trajectories obtained by numerical integrators such as Runge–Kutta...

This work investigates the nucleation of droplets from supercooled CO₂ and CO₂-rich gas during decompression, using classical nucleation theory (CNT). We model the supercooling limit employing highly accurate equations of state and compare the result with nucleation pressures determined from...

Changes in pore pressure within geological reservoirs, due to, e.g., hydrocarbon production, CO₂ and energy storage, or wastewater disposal, may cause substantial stress changes in the overburden, altering propagation velocities of elastic waves. The corresponding time shifts are detected and...

The accelerated mortar bar test (AMBT) for pyrrhotite (Fe1-xS) containing aggregates accelerates expansion using two regimes: Phase I, during which Fe1-xS oxidation to iron hydroxide is accelerated by bleach and storage at 80 °C; Phase II that promotes thaumasite formation with continued bleach...

Ports will play an important role in the decarbonisation of maritime transport towards 2050, and for the energy transition in a larger perspective. In this context, options for integrating multiple energy carriers and end-user sectors are seldom addressed. This study aims at qualitatively assessing...

En ny studie viser at bruk av karbonfangst i sementproduksjon kan redusere klimautslippene fra byggeprosjekter betydelig....

This report provides an overview over the most common used NDT methods and sensors for inspection and monitoring of existing concrete structures. The methods are briefly described with regard to their working principle and the parameters and properties of concrete structures that can be investigated...