Browsing NORCE Energi og teknologi by Title
Now showing items 219-238 of 347
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Non-Gaussian Ensemble Optimization
(Journal article; Peer reviewed, 2024)Ensemble-based optimization (EnOpt), commonly used in reservoir management, can be seen as a special case of a natural evolution algorithm. Stein’s lemma gives a new interpretation of EnOpt. This interpretation enables us ... -
Novel iterative ensemble smoothers derived from a class of generalized cost functions
(Peer reviewed; Journal article, 2021)Iterative ensemble smoothers (IES) are among the state-of-the-art approaches to solving history matching problems. From an optimization-theoretic point of view, these algorithms can be derived by solving certain stochastic ... -
Numerical Simulations of Viscous Fingering in Fractured Porous Media
(Peer reviewed; Journal article, 2024)The effect of heterogeneity induced by highly permeable fracture networks on viscous miscible fingering in porous media is examined using high-resolution numerical simulations. We consider the planar injection of a less ... -
A numerical study of flow field and particle deposition in nasal channels with deviant geometry
(Peer reviewed; Journal article, 2021)Deviant geometry of nasal channels results in significant changes to nasal aerodynamics that alter flow resistance, sensation, and the ability to filter aerosols. The invasive, operative modification of nasal geometry might ... -
Offshore wind farm layout optimization using ensemble methods
(Peer reviewed; Journal article, 2023)When planning wind farms it is important to optimize the layout to increase production and reduce costs. In this paper we minimize the levelized cost of energy (LCOE) for a floating wind farm using wind data in an area ... -
An old game, new experience: exploring the effect of players’ personal gameplay history on game experience.
(Journal article; Peer reviewed, 2022)This experimental study explores how game experience differs between players with different gameplay histories within the same game universe. We are interested in how prolonged engagement with a game series affects the ... -
On the Organisation of Translation—An Inter- and Transdisciplinary Approach to Developing Design Options for CO2 Storage Monitoring Systems
(Peer reviewed; Journal article, 2022)Interdisciplinary and transdisciplinary collaboration has become a common practice in technology development projects. Rarely, however, the integration (and translation) of knowledge from different disciplines and different ... -
On the use of criteria based on the SMART acronym to assess quality of performance indicators for safety management in process industries
(Peer reviewed; Journal article, 2021)Management of safety, and barriers in particular, includes using information expressing performance, i.e. use of safety performance indicators. For this information to be useful, the indicators should demonstrate adequate ... -
On the use of the vision zero principle and the ALARP principle for production loss in the oil and gas industry
(Peer reviewed; Journal article, 2019)In the oil and gas industry, there is a strong focus on reducing production loss, and in the last decade the industry has adopted Vision Zero as a governing principle, to meet this goal. A previous paper has concluded that, ... -
Operational Strategies of Two-Spool Micro Gas Turbine With Alternative Fuels: A Performance Assessment
(Peer reviewed; Journal article, 2024)Micro gas turbines (mGT) have not yet succeeded in conquering the small-scale combined heat and power (CHP) market. One reason is that their electrical efficiency is not high enough to maintain a cost-effective operation. ... -
An Overall Furnace Model for the Silicomanganese Process
(Journal article; Peer reviewed, 2021)Controlling and optimizing smelting processes in submerged-arc furnaces are complicated by the limited amount of information available regarding the internal conditions. Computer models can help to bridge this knowledge ... -
Overview of how the Calculation of Dynamic Temperature of Drilling Fluids is Closely Linked with Rheology
(Journal article; Peer reviewed, 2024)Based on many years of work with the calculation of dynamic temperature of drilling fluids during operations, a pedagogic overview of how the calculation of heat transfer and temperature is closely linked with fluid flow ... -
Overview of the Potential of Energy Harvesting Sources in Electric Vehicles
(Peer reviewed; Journal article, 2023)Energy harvesting, a cutting-edge technology that captures wasted energy from vehicles, constitutes a means to improve the efficiency of electric vehicles. Dissipated energy can be converted into electricity using regenerative ... -
p-Kernel Stein Variational Gradient Descent for Data Assimilation and History Matching
(Journal article; Peer reviewed, 2021)A Bayesian method of inference known as “Stein variational gradient descent” was recently implemented for data assimilation problems, under the heading of “mapping particle filter”. In this manuscript, the algorithm is ... -
Participatory Design of VR Scenarios for Exposure Therapy
(Chapter, 2019)Virtual reality (VR) applications for exposure therapy predominantly use computer-generated imagery to create controlled environments in which users can be exposed to their fears. Creating 3D animations, however, is demanding ... -
Patient use and experience with online access to electronic health records in Norway: Results from an online survey
(Peer reviewed; Journal article, 2020)Background: The electronic health record (EHR) has been fully established in all Norwegian hospitals. Patient-accessible electronic health records (PAEHRs) are available to citizens aged 16 years and older through the ... -
The Performance of Distributed Acoustic Sensing for Tracking the Movement of Road Vehicles
(Journal article; Peer reviewed, 2023)In this paper we introduce Distributed Acoustic Sensing (DAS) and discuss its potential application in Intelligent Transportation Systems (ITS). We present the fundamentals of the technology and data processing methods ... -
Performance study and life-cycle cost analysis of a ground-source heat-pump system in a commercial building in Norway
(Peer reviewed; Journal article, 2022)High-performance systems are a prerequisite for profitable borehole thermal-energy storage. This paper presents performance measures for a system operating at a seasonal performance factor of 4.5 and evaluates the life-cycle ... -
Perfusion estimation using synthetic MRI-based measurements and a porous media flow model
(Peer reviewed; Journal article, 2023)The measurement of perfusion and filtration of blood in biological tissue give rise to important clinical parameters used in diagnosis, follow-up, and therapy. In this paper, we address techniques for perfusion analysis ... -
Periodic CO2 Injection for Improved Storage Capacity and Pressure Management under Intermittent CO2 Supply
(Peer reviewed; Journal article, 2022)Storing CO2 in geological formations is an important component of reducing greenhouse gases emissions. The Carbon Capture and Storage (CCS) industry is now in its establishing phase, and if successful, massive storage ...