Hydrodeoxygenation (HDO) is a critical process for upgrading biomass-derived feedstocks. It enables the removal of oxygen, which improves stability, energy density, and compatibility with existing fuel infrastructure. This study examines the catalytic performance of titania-supported noble metals...
Low-frequency laboratory measurements provide direct accessto the elastic properties of samples within the seismic frequency band, offering calibration data for seismic survey analysis. Additionally, μCT imaging can quantify actual saturations and provides insights into phase distributions at the...
The Ostwald process is one of the commercial pathways for the production of nitric acid (HNO3), a key component in the production of nitrate fertilizers. The Ostwald process is a mature, extensively studied, and highly optimized process, and there is still room for further intensification. The...
This paper computationally investigates partial discharges (PDs) in the form of self-sustained gas discharges. It presents two methods for predictive modeling: (1) a new low-fidelity algorithm for the PD inception voltage is introduced. The method is volume-resolved and describes both the strength...
Mapping reservoirs of antimicrobial resistance (AMR) across food value chains and their environmental dissemination pathways is essential for limiting the spread and impact of AMR. The aim of this study was to investigate the prevalence of AMR genes and bacteria in sidestream materials, waste...
The influences of boron (B) and copper (Cu) on the morphology of the graphite nodules and fraction of ferrite in spheroidal graphite iron (SGI) have been studied. It was observed that B promotes ferrite in a fully pearlitic SGI alloyed with 0.5 wt% Cu and 0.7 wt% Mn. For this particular alloy and...
The need of efficient electric transmission systems, the rise of renewable energy production, and the development of battery storage systems have driven the adoption of Modular Multilevel Converters (MMC), which offer better performance than conventional converters. However, the diagnosis of...
Økt digitalisering og et dynamisk trusselbilde har ført til økt oppmerksomhet rundt cybersikkerhet i operasjonelle teknologisystemer (OT) på norsk sokkel. OT- systemer, som styrer industrielle prosesser, har tidligere operert i isolert tilstand, men kobles nå i økende grad mot IT-nettverk som et...
Early fault detection (EFD) presents significant challenges due to the subtle nature of abnormal signals during this phase. Traditional EFD methods primarily focus on identifying the onset time of failures. In this paper, we propose a novel EFD approach that simultaneously achieves early fault...
Given the potential of hydrogen as an energy carrier in achieving carbon neutrality, assessing the fatigue crack growth rate behaviour of new and vintage pipeline materials exposed to hydrogen for new or repurposing of existing infrastructure is vital. Fatigue crack growth rate (FCGR) curves were...
C-Ray is an amphibious robot that is capable of swimming in water and crawling on land using its undulating fins, enabling operations in a wide range of environments. The robot can be modeled as a hybrid dynamical system whose dynamics and propulsion change when the robot transitions between water...
Density functional theory and micromechanical methods were used to investigate the adsorption and decomposition of formaldehyde on the surfaces of pure and Mn-doped Fe3O4 catalysts. The O2 site was determined as the optimal adsorption site, and single doping with Mn promotes the generation of oxygen...
Objective Brain contusion frequency, distribution and prognostic value were investigated on early MRI in moderate-severe traumatic brain injury (TBI). Materials and methods We prospectively included 301 patients (8–70 years) admitted to Trondheim or Oslo University Hospitals with moderate ( n...
Within this study, a methodology for the numerical simulation of droplet freezing, including a micrometer texturized pattern, was developed. The finite volume method was then applied to simulate the behavior of water droplets. The procedure was divided into two processes: stabilization and freezing...
A guarantee of safe and efficient power production by the means of green energy sources is an extremely important task, necessary to the popularize environmental-friendly solutions. Ice accumulation and water droplet erosion are some serious obstacles to increasing the power output of the wind...
This paper presents initial work on utilizing controlled short-circuit tests for identifying sufficiently accurate electric circuit models of batteries, aimed at fault analysis in power grids featuring large battery storage systems. The goal is to derive the models by testing components of the...