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norskFakultet for naturvitenskap og teknologi
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Variations in pockmark composition at the Vestnesa Ridge: Insights from marine controlled source electromagnetic and seismic data
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-10)The Vestnesa Ridge marks the northern boundary of a known submarine gas hydrate province in the west Svalbard margin. Several seafloor pockmarks at the eastern segment of the ridge are sites of active methane venting. Until ... -
The onset of flysch sedimentation in the Kaoko Belt (NW Namibia) – Implications for the pre-collisional evolution of the Kaoko–Dom Feliciano–Gariep orogen
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-17)<p>Detrital zircon provenance study of a metamorphosed sedimentary succession in the eastern part of the Kaoko Belt in Namibia has revealed two distinct sources for the Neoproterozoic sedimentation along the southwestern ... -
Bottom-simulating reflector dynamics at Arctic thermogenic gas provinces: An example from Vestnesa Ridge, offshore west Svalbard
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06) -
Determination of the Edge of Criticality in Echo State Networks Through Fisher Information Maximization
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03)It is a widely accepted fact that the computational capability of recurrent neural networks (RNNs) is maximized on the so-called “edge of criticality.” Once the network operates in this configuration, it performs efficiently ... -
Internet of Things Mini Display-based Motivation, Notification and Warning System for Groups of People with Diabetes Type 1
(Master thesis; Mastergradsoppgave, 2018-06-01)Diabetes is a complex and time-consuming affair for the people that are afflicted by the disease. A strict self-management regime needs to be followed to avoid short- and long-term complications, which requires a great ... -
Extreme-value statistics from Lagrangian convex hull analysis for homogeneous turbulent Boussinesq convection and MHD convection
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-20)We investigate the utility of the convex hull of many Lagrangian tracers to analyze transport properties of turbulent flows with different anisotropy. In direct numerical simulations of statistically homogeneous and ... -
Semi-quantitative reconstruction of early to late Holocene spring and summer sea ice conditions in the northern Barents Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-07)Semi-quantitative estimates of early to late Holocene spring sea ice concentration (SpSIC) andoccurrence of summer sea ice for the northern Barents Sea have been obtained by analysing the biomarkers IP<sub>25</sub>,brassicasterol ... -
Water redistribution in experimentally deformed natural milky quartz single crystals?Implications for H2O-weakening processes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-22)Natural quartz single crystals were experimentally deformed in two orientations: (1) ⊥ to one prism plane and (2) in O+ orientation at 900 and 1000°C, 1.0 and 1.5 GPa, and strain rates of ~1 × 10−6 s−1. In addition, ... -
Cryptophanes for Methane and Xenon Encapsulation: A Comparative Density Functional Theory Study of Binding Properties and NMR Chemical Shifts
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-27)The host-guest chemistry of cryptophanes is an active research area because of its applications in sensor design, targeting small molecules and atoms in environmental and medical sciences. As such, the computational ... -
Anomalous phosphorescence from an organometallic white-light phosphor
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-25)We report theoretical results on the possible violation of Kasha’s rule in the phosphorescence process of (acetylacetonato)bis(1-methyl-2-phenylimidazole)iridium(III), and show that the anomalous emission from both the ... -
Entropy and Enzyme Catalysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-07)The role played by entropy for the enormous rate enhancement achieved by enzymes has been debated for many decades. There are, for example, several confirmed cases where the activation free energy is reduced by around 10 ... -
Complete Genome Sequences of Seven Vibrio anguillarum Strains as Derived from PacBio Sequencing
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-07)We report here the complete genome sequences of seven Vibrio anguillarum strains isolated from multiple geographic locations, thus increasing the total number of genomes of finished quality to 11. The genomes were de novo ... -
Making your devices speak. Integration between Amazon Alexa and the Managed IoT Cloud
(Master thesis; Mastergradsoppgave, 2018-06-01)Speech recognition and communication between humans and machines are increasingly popular today. Several companies already have products in this market segment. The Managed IoT Cloud (MIC) platform is a complete ... -
Microseismicity linked to gas migration and leakage on the western Svalbard shelf
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-26)The continental margin off Prins Karls Forland, western Svalbard, is characterized by widespread natural gas seepage into the water column at and upslope of the gas hydrate stability zone. We deployed an ocean bottom ... -
Identifying hazards to include in risk analyses
(Book; Chapter, 2018)A risk analysis should provide decision makers with information regarding relevant hazards. The initiating phase, where the risk analysts identify hazards to be included in the risk analysis, lays the foundation for the ... -
A flexural isostasy model for the Pleistocene evolution of the Barents Sea bathymetry
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-24)The topographic relief of the Barents Sea was subjected to major changes during the past 1.5 million years mostly due to sediment redistribution driven by glacial activity. This paper addresses the problem of Pleistocene ... -
Long-range persistence in global surface temperatures explained by linear multibox energy balance models
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-15)The temporal fluctuations in global mean surface temperature are an example of a geophysical quantity that can be described using the notions of long-range persistence and scale invariance/scaling, but this description has ... -
Rhodium-Catalyzed Synthesis of Sulfur Ylides via in Situ Generated Iodonium Ylides
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-22)A convenient strategy for the synthesis of sulfur ylides via rhodium-catalyzed coupling of in situ generated iodonium ylides with sulfides or sulfoxides has been developed. A wide range of sulfur ylides were obtained in ... -
U-Th chronology and formation controls of methane-derived authigenic carbonates from the Hola trough seep area, northern Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-20)We investigated methane-derived authigenic carbonate (MDAC) crusts and nodules from a cold seep site on the northern Norwegian continental shelf in ca. 220 m water depth to determine the timing and mode of their formation. ... -
Arctic HARE. A Machine Learning-based System for Performance Analysis of Cross-country Skiers
(Master thesis; Mastergradsoppgave, 2018-06-01)The advances in sensor technology and big-data processing enable performance analysis of sport athletes. With the increase in data, both from on-body sensors and cameras, it is possible to quantify what makes a good ...
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