Blar i Faculty of Mathematics and Natural Sciences på utgivelsesdato
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Subsurface Faults Permeability study: Utilization of production data in an exploratory phase, Njord field Heltan Terrace Norwegian Continental Shelf (NCS)
(Master thesis, 2024-01-08)Faults in the subsurface can either aid or block fluid movement based on rock permeability. Analytical techniques measure fault seal capacity for hydrocarbon exploration and carbon capture and storage (CCS) planning. Fault ... -
Improved multivariable algorithms for estimating oceanic particulate organic carbon concentration from optical backscattering and chlorophyll-a measurements
(Journal article; Peer reviewed, 2024-01-08)The capability to estimate the oceanic particulate organic carbon concentration (POC) from optical measurements is crucial for assessing the dynamics of this carbon reservoir and the capacity of the biological pump to ... -
Towards better lumpfish: Changes in size variation, cataract development, behaviour and sea lice grazing through selective breeding
(Journal article; Peer reviewed, 2024)The aim of this study was to evaluate whether sea lice grazing efficiency, behaviour, size variation and cataract development can be improved through selective breeding of lumpfish. A series of studies was conducted over ... -
Unified flash calculations with isenthalpic and isochoric constraints
(Journal article; Peer reviewed, 2024)In the unified flash procedure, a persistent set of unknowns and equations are solved in equilibrium calculations, allowing for simultaneous phase stability and split calculations. For fluids in a subcritical thermodynamic ... -
Flexible and rigorous numerical modelling of multiphysics processes in fractured porous media using PorePy
(Journal article; Peer reviewed, 2024)Multiphysics processes in fractured porous media is a research field of importance for several subsurface applications and has received considerable attention over the last decade. The dynamics are characterized by strong ... -
From winter to late summer in the northwestern Barents Sea shelf: Impacts of seasonal progression of sea ice and upper ocean on nutrient and phytoplankton dynamics
(Journal article; Peer reviewed, 2024)Strong seasonality is a key feature of high-latitude systems like the Barents Sea. While the interannual variability and long-term changes of the Barents Sea are well-documented, the seasonal progression of the physical ... -
Mechanisms of offshore solid and liquid freshwater flux from the East Greenland Current
(Journal article; Peer reviewed, 2024)The mechanisms that control the export of freshwater from the East Greenland Current, in both liquid and solid form, are explored using an idealized numerical model and scaling theory. A regional, coupled ocean–sea ice ... -
Methods for tagging an ectoparasite, the salmon louse Lepeophtheirus salmonis
(Journal article; Peer reviewed, 2024)Monitoring individuals within populations is a cornerstone in evolutionary ecology, yet individual tracking of invertebrates and particularly parasitic organisms remains rare. To address this gap, we describe here a method ... -
A Novel Evolutionary Solution Approach for Many-objective Reliability-Redundancy Allocation Problem Based on Objective Prioritization and Constraint Optimization
(Journal article; Peer reviewed, 2024)The reliability redundancy allocation problem (RRAP) has been mostly solved either as a single or as a multi-objective optimization problem. However, this problem also has numerous important constraints which play prominent ... -
Keeping an “eye” on the experiment: computer vision for real-time monitoring and control
(Journal article; Peer reviewed, 2024)This work presents a generalizable computer vision (CV) and machine learning model that is used for automated real-time monitoring and control of a diverse array of workup processes. Our system simultaneously monitors ... -
Learning from positive and negative examples: New proof for binary alphabets
(Journal article; Peer reviewed, 2024)One of the most fundamental problems in computational learning theory is the problem of learning a finite automaton A consistent with a finite set P of positive examples and with a finite set N of negative examples. By ... -
ECKOchain: A FAIR blockchain-based database for long-term ecological data
(Journal article; Peer reviewed, 2024)Open data practices in ecology are increasingly accepted, yet primary long-term ecological data remain hard to find. Barriers preventing open long-term ecological data include social and economic constructs such as a sense ... -
Integration by Riemann triangles
(Journal article; Peer reviewed, 2024)In this article we present a method of integration inspired by an example from Proofs Without Words II by Nelsen. Riemann rectangles under a curve are transformed into triangles. The limit of the collection of triangles ... -
Stochastic organelle genome segregation through Arabidopsis development and reproduction
(Journal article; Peer reviewed, 2024)Organelle DNA (oDNA) in mitochondria and plastids is vital for plant (and eukaryotic) life. Selection against damaged oDNA is mediated in part by segregation – sorting different oDNA types into different cells in the ... -
An integrated geological characterization of the Mid-Pleistocene to Holocene geology of the Sørlige Nordsjø II offshore wind site, southern North Sea
(Journal article; Peer reviewed, 2024)Subsurface deposits in recently glaciated marine areas are highly heterogeneous, representing a range of glacial and postglacial environments and processes including glacitectonism, overconsolidation, fluvial and lacustrine ... -
Socio-cultural values and biophysical supply: How do afforestation and land abandonment impact multiple ecosystem services?
(Journal article; Peer reviewed, 2024) -
Rigorous estimates on mechanical balance laws in the Boussinesq–Peregrine equations
(Journal article; Peer reviewed, 2024)It is shown that the Boussinesq–Peregrine system, which describes long waves of small amplitude at the surface of an inviscid fluid with variable depth, admits a number of approximate conservation equations. Notably, this ... -
Salmon louse labial gland enzymes: implications for host settlement and immune modulation
(Journal article; Peer reviewed, 2024)Salmon louse (Lepeophtheirus salmonis) is a skin- and blood-feeding ectoparasite, infesting salmonids. While feeding, labial gland proteins from the salmon louse may be deposited on the Atlantic salmon (Salmo salar) skin. ... -
Room-Scale CO2 Injections in a Physical Reservoir Model with Faults
(Journal article; Peer reviewed, 2024)We perform a series of repeated CO2 injections in a room-scale physical model of a faulted geological cross-section. Relevant parameters for subsurface carbon storage, including multiphase flows, capillary CO2 trapping, ... -
Multi-Task Optimization in Reliability Redundancy Allocation Problem: A Multifactorial Evolutionary-Based Approach
(Journal article; Peer reviewed, 2024)Evolutionary multi-task optimization attempts to solve multiple optimization problems simultaneously by modeling the solution structures of two or more problems within a single encoding. In this paper, we report a novel ...