Fakultet for naturvitenskap og teknologi: Nye registreringer
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Multi-criteria Decision-making Methods for Sustainable Decisionmaking in the Mining Industry (A Comprehensive Study)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024)The mining industry operates in a complex and dynamic environment and faces many challenges that can negatively affect sustainable development goals. To avoid these effects, mining needs to adopt strategic decisions. Therefore, it requires effective decision-making processes for resource optimization, operational efficiency, and sustainability. Multicriteria decision-making methods (MCDM) have been ... -
Resilienssin ulottuvuudet [The dimensions of resilience; in Finnish]
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-22)Resilienssi on aikamme iskusanoja. Termillä on pitkät perinteet, mutta vasta 2010-luvulla se nousi suureen suosioon. Resilienssiä tutkitaan usean tieteenalan piirissä, ja termillä on lukuisia käytännöllisiä sovellusaloja. Tämä on johtanut siihen, että ei ole yksiselitteistä, mitä resilienssi milloinkin tarkoittaa. Termin kääntäminen kansallisille kielille, useimmiten tavoittamatta sen moninaisuutta, ... -
Climate Change Impacts on Mining Value Chain: A Systematic Literature Review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-01)Mining is becoming increasingly vulnerable to the effects of climate change (CC). The consequences of changing weather patterns, such as extreme weather events that can damage equipment, infrastructure, mining facilities, and operation interruption, are the source of the vulnerability. The new demand initiated by governments and international agreements put extra pressure on mining industries to ... -
A scientometrics view on sustainable development in surface mining: Everything from the beginning
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-11)In summary, the study on sustainable development in the late 20th century aimed to balance economic, social, and environmental factors in open-pit mining. The study found that while mining has negative ecological impacts, it also has positive economic and social benefits. The study analyzed 77 articles and found a growing trend in scientific interest in sustainable development research from 1985 to ... -
Mechanisms of enzyme adaptation to extreme environments: The rational design of a thermophilic chorismate mutase
(Doctoral thesis; Doktorgradsavhandling, 2024-02-26)<p>Extremophiles, especially those living in high-temperature environments, exhibit unique enzymatic mechanisms that allow survival under conditions detrimental to most life forms. Of particular interest is thermophiles, which are able to thrive at temperatures at which psychrophiles and mesophiles unfold and cease to function. The mechanisms by which these enzymes are able to overcome this temperature ... -
Preparation of a Compound with a SiII−SiIV−SiII Bonding Arrangement
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-07)Herein, we report the synthesis of a rare bis-silylene, 1, in which two Si<sup>II</sup>atoms are bridged by a Si<sup>IV</sup> atom. Compound 1 contains an unusual Si<sup>II</sup> SiI<sup>V</sup> Si<sup>II</sup> bonding arrangement with Si<sup>II</sup> Si<sup>IV</sup> bond distances of 2.4212(8) and 2.4157(7) Å. Treatment of 1 with Fe(CO)<sub>5</sub> afforded a dinuclear Fe<sup>0</sup>S complex 2 ... -
From Diaminosilylenes to Silapyramidanes: Making Sense of the Stability of Divalent Silicon Compounds
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-07)Since the discovery of decamethylsilicocene over three decades ago, chemists have successfully isolated a variety of divalent silicon compounds by orchestrating steric and electronic effects to their advantage. Two broad strategies of electronic stabilization appear to have been widely deployed, namely, π-conjugation as in diaminosilylenes and π-complexation as in decamethylsilicocene and ... -
Shallow and deep groundwater moderate methane dynamics in a high Arctic glacial catchment
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-07)Glacial groundwater can mobilize deep-seated methane from beneath glaciers and permafrost in the Arctic, leading to atmospheric emissions of this greenhouse gas. We present a temporal, hydro-chemical dataset of methane-rich groundwater collected during two melt seasons from a high Arctic glacial forefield to explore the seasonal dynamics of methane emissions. We use methane and ion concentrations ... -
Sleep Monitoring with Wearable Sensor Data in an eCoach Recommendation System: A Conceptual Study with Machine Learning Approach
(Chapter; Bokkapittel, 2023-04-25)The collective effects of sleep loss and sleep disorders are correlated with many adverse health consequences, including increased risk of high blood pressure, obesity, diabetes, depressive state, and cardiovascular symptoms. Research in eHealth can provide methods to enrich personal health care with information and communication technologies (ICTs). An eCoach system may allow people to manage a ... -
Analysis of dust impacts observed with the Radio Plasma Wave instrument onboard ESA’s Solar Orbiter
(Master thesis; Mastergradsoppgave, 2023-12-15)Dust particles are one of the major constituents of the interplanetary medium in our solar system. They are presumably formed by fragmentation processes of meteoroids and for a certain range of sizes and parameters the dust particles move radially outwards from the Sun. The Radio plasma Wave (RPW) instrument on Solar Orbiter can measure dust particles that impact the spacecraft. By measuring the ... -
On the Distribution of Meteoric Smoke Particles above Andøya, Norway, and Estimated Collection During a Summer Rocket Campaign
(Master thesis; Mastergradsoppgave, 2023-12-21)As meteoroids enter the Earth’s atmosphere, the majority will fully evaporate in the altitude region 70–110 km, due to the frictional heating from atmospheric interactions. The evaporated material is thought to re-condense and coagulate into nanometer sized particles called meteoric smoke particles (MSP). These particles are thought to be a central component in the formation of noctilucent clouds ... -
Wind Turbine System Performance and Reliability Trend Analysis
(Master thesis; Mastergradsoppgave, 2022-01-30)This thesis project is a part of my master’s study course at the department of technology and safety. My thesis is focused on renewable energy, especially analyzing of energy production and technical performance of existing wind turbines within the arctic region. To that end it was important to contact local wind farm owners for operational data exchange. Using partners production and fault related ... -
A southern, middle, and northern Norwegian offshore wind energy resources analysis by a transfer learning method for Energy Internet
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023)As renewable energy sources offshore wind energy develop quickly, countries like Norway with long coastlines are exploring their potential. However, the diverse wind resources across different regions of Norway present challenges for study for effective utilization of offshore wind energy. This study proposes a novel method that utilizes transfer learning techniques to analyse the resource differences ... -
Assessment of the ecological quality status of the Sepetiba Bay (SE Brazil): When metabarcoding meets morphology on foraminifera
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-09)In recent years, the region surrounding Sepetiba Bay (SB; SE Brazil) has become a hub of intense urban expansion and economic exploitation in response to ore transport and industrial and port activities. As a result, contaminants have been introduced into the bay, leading to an overall worsening of the environmental quality. The present work applies for the first time a foraminiferal morphology-based ... -
Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-11)The variability of Arctic sea-ice during abrupt stadial-interstadial shifts in the last glacial period remain poorly understood. Here, we investigated the millennial-scale relationship, with a focus on Heinrich Stadials (HS), between sea-ice cover and bottom water temperature (BWT) during Marine Isotope Stages (MIS) 3 and 2 (64–13 ka) in the Fram Strait using new molecular sea ice biomarker data and ... -
Multi-Agent Collision Avoidance Method Using Fuzzy Risk Estimation and Information Sharing in Unknown Environments
(Chapter; Bokkapittel, 2023-09-22)Automated vehicles within Industry 4.0 are used as logistics units where they can move resources from one place to another safely and efficiently. The automated vehicles can be tasked to work in unknown environments where collision-free navigation is challenging due to uncertainty and lack of environmental information. Collisions can damage equipment and may even cause harm to human workers sharing ... -
Self-Supervised Few-Shot Learning for Ischemic Stroke Lesion Segmentation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-01)Precise ischemic lesion segmentation plays an essential role in improving diagnosis and treatment planning for ischemic stroke, one of the prevalent diseases with the highest mortality rate. While numerous deep neural network approaches have recently been proposed to tackle this problem, these methods require large amounts of annotated regions during training, which can be impractical in the medical ... -
Label-free measurement of antimicrobial peptide interactions with lipid vesicles and nanodiscs using microscale thermophoresis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-03)One strategy to combat antimicrobial resistance is the discovery of new classes of antibiotics. Most antibiotics will at some point interact with the bacterial membrane to either interfere with its integrity or to cross it. Reliable and efficient tools for determining the dissociation constant for membrane binding (K<sub><i>D</sub></i>) and the partitioning coefficient between the aqueous- and ... -
Comparative analysis of HiSeq3000 and BGISEQ-500 sequencing platform with shotgun metagenomic sequencing data
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-29)Recent advances in sequencing technologies and platforms have enabled to generate metagenomics sequences using different sequencing platforms. In this study, we analyzed and compared shotgun metagenomic sequences generated by HiSeq3000 and BGISEQ-500 platforms from 12 sediment samples collected across the Norwegian coast. Metagenomics DNA sequences were normalized to an equal number of bases for ... -
Full Breit Hamiltonian in the Multiwavelets Framework
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-01)New techniques in core–electron spectroscopy are necessary to resolve the structures of oxides of f-elements and other strongly correlated materials that are present only as powders and not as single crystals. Thus, accurate quantum chemical methods must be developed to calculate core spectroscopic properties in such materials. In this contribution, we present an important development in this ...