SINTEF

Influence of elevated temperature on hydride formation and hydrogen-assisted deformation in pure titanium

Abstract The effect of temperature on hydride formation and hydrogen-induced deformation in α-Ti was investigated using tensile testing combined with in-situ SEM observations. Microstructural characterization of hydrogen-charged and deformed specimens at both room temperature and...

Multi-Parameter Viscoelastic Full Waveform Inversion (Q-FWI) for CO2 Saturation Monitoring: Leveraging Velocity and Attenuation Attributes

Abstract Monitoring injected CO2 saturation is critical for carbon capture and storage (CCS) projects, but its quantification remains challenging due to complex fluid-rock interactions and the subtle seismic signatures of partial saturation. Saturation analysis is an integral asp...

Cyber-Physical Testing of Wind-Assisted Ships: Recent Developments and Open Data Set for the SOBC-1 Bulk Carrier

Abstract This paper presents recent improvements in the cyber-physical test method for wind-assisted ships at SINTEF Ocean. In particular, a dynamic lifting line method, that interacts in real-time with the physical ship model, enables now modelling transient aerodynamic effects,...

Equivalent holding time to reduce NDT delay and prevent hydrogen-induced cold cracking

Abstract Cold cracking is delayed in nature, driven by the presence of diffusible hydrogen. Current standards on welding of structural steels therefore require a minimum delay time before non-destructive testing is conducted, creating significant constraints on many fabrication p...

Direct Observation of Tantalum Nitride Photoelectrode Degradation by Environmental Transmission Electron Microscopy

Abstract Stability under realistic operating conditions remains a critical challenge for photoelectrochemical (PEC) materials in solar fuel production, where photocorrosion often leads to rapid performance degradation. In particular, the formation of insulating amorphous TaOx/Ta(...

Co-Simulation Errors Due to Step Size Changes

When two simulation units in a continuous-time co-simulation are connected via some variable q , and both simulation units have an internal state which represents the time integral of q , there will generally be a discrepancy between those states due to extrapolation errors. Norm...

Dynamics of infectious salmon anemia virus in biofouling on well-boat hulls

Infectious Salmon Anemia Virus (ISAV) is a significant pathogen in the aquaculture industry worldwide, posing serious threats to fish health and causing substantial economic losses for producers. Thus, understanding potential transmission pathways and implementing strategies to r...

Photo-guided azopolymer hydrogel actuators

Amorphous azopolymers are fascinating materials that can be deformed in arbitrary directions by light. However, they are so far used mostly for microfabrication, to anisotropically reshape dry polymer structures - essentially as a post-processing fabrication step. This is because...

Techno-economic assessment of the transportation alternatives and safety issues

This document presents the key activities required to develop and propose optimal low-to-zero-emission transport solutions tailored for small and medium-sized mining operations. It provides a structured framework for identifying, assessing, and recommending sustainable transporta...

A multi-body approach for distributing first-order hydrodynamic and hydrostatic loads on flexible structures, with application to coupled simulations of large floating wind turbines

Optimized future floating wind turbines (FWTs) are expected to be both larger and relatively lighter than conventional offshore platforms, thus more flexible. The common practice of modeling the platform as a rigid body in coupled dynamic simulations of FWTs can then be questione...

Variation in general practitioners’ mental health diagnostic tendencies and subsequent patient care: a Norwegian registry study

Abstract Background General practitioners (GPs) are often the first point of contact for adults presenting with symptoms of depression or anxiety. Practices may vary due to patient and physician tendencies, influencing treatment pathways. This study aimed to quantify variation in...

Effect of gaseous hydrogen on embrittlement of PBF-LB alloy 718: Influence of build orientation and microstructure on mechanical properties

This study reports the effects of build orientation and precipitates on the hydrogen embrittlement susceptibility of powder bed fusion – laser beam (PBF-LB) alloy 718 for aerospace applications. The material is subjected to hot isostatic pressing (HIP) then to a modified aerospac...

Delivering building demand flexibility for grid-interactive operation: from perception and cognition to decision, execution, and verification

As both buildings and power systems undergo rapid decarbonization, demand flexibility (DF) in buildings has emerged as a key enabler for renewable energy integration, grid reliability, energy resilience, and efficient and low carbon operation. By dynamically adjusting building en...

Production, Biodegradation,and Recalcitrance of OrganicCarbon from Cultivated Saccharina latissima in Norway

Abstract Particulate (POC) and dissolved (DOC) organic carbon released during macroalgae cultivation has been shown to lead to carbon burial and export to the open ocean and deep sea. The recalcitrant portion of the DOC (RDOC) is a critical contributor to carbon sequestration and...

Bridging Nanoscopic Surface Heterogeneity and MacroscopicNucleation Rates: A Perspective on Probabilistic Approaches

Abstract Predicting the number of newly formed crystals and their spatial distribution on surfaces or within pore spaces matters across many fields, from structural biology to coupled fluid flow and reactive transport in porous media to atmospheric physics. Nucleation occurs at m...

Eddy kinetic energy and energy conversion rates along the Atlantic Water boundary current north of Svalbard

Abstract. On the continental slope north of Svalbard, the boundary current carrying Atlantic Water (AW) loses heat as it flows eastward. This cooling cannot be fully attributed to atmospheric heat loss or turbulent mixing. Lateral exchange, potentially linked to mesoscale activit...