Faculty of Science and Technology: Recent submissions
Now showing items 1661-1680 of 7367
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On the Certificate Revocation Problem in the Maritime Sector
(Peer reviewed; Journal article, 2021)Maritime shipping is currently undergoing rapid digitalization, but with increasing exposure to cyber threats, there is a need to improve the security of the ship communication technology used during operations across ... -
Symmetric teleparallel geometries
(Peer reviewed; Journal article, 2022)In teleparallel gravity and, in particular, in F(T) teleparallel gravity, there is a challenge in determining an appropriate (co-)frame and its corresponding spin connection to describe the geometry. Very often, the ‘proper’ ... -
Quantum corrections to slow-roll inflation: scalar and tensor modes
(Peer reviewed; Journal article, 2021)Inflation is often described through the dynamics of a scalar field, slow-rolling in a suitable potential. Ultimately, this inflaton must be identified with the expectation value of a quantum field, evolving in a quantum ... -
Aerodynamic Investigation of Tucked Positions in Alpine Skiing
(Peer reviewed; Journal article, 2021)The purpose of this investigation was to examine the aerodynamics of tucked positions in competitive alpine skiing. To further our understanding of how a skier’s position affects the air flow and the resulting aerodynamic ... -
Dynamics of Buyer-Seller Relations in Norwegian Wine Imports
(Peer reviewed; Journal article, 2021)As for all traded products, aggregated wine imports build on numerous trades at the firm level. To ensure consumers access to a variety of wines with different qualities, importers need to connect to different wine exporters. ... -
Real-Time Minimization of Mechanical Specific Energy with Multivariable Extremum Seeking
(Peer reviewed; Journal article, 2021)Drilling more efficiently and with less non-productive time (NPT) is one of the key enablers to reduce field development costs. In this work, we investigate the application of a data-driven optimization method called ... -
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 ... -
An environmental risk assessment framework for enhanced oil recovery solutions from offshore oil and gas industry
(Peer reviewed; Journal article, 2021)Environmental risk assessments are necessary to understand the risk associated with enhanced oil recovery (EOR) solutions and to provide decision support for choosing the best technology and implementing risk-reducing ... -
Lack of Association Between GBA Mutations and Motor Complications in European and American Parkinson's Disease Cohorts
(Peer reviewed; Journal article, 2021)Background: Motor complications are a consequence of the chronic dopaminergic treatment of Parkinson’s disease (PD) and include levodopa-induced dyskinesia (LIDs) and motor fluctuations (MF). Currently, evidence is on ... -
Closed-loop well construction optimization (CLWCO) using stochastic approach under time uncertainty
(Peer reviewed; Journal article, 2021)There is a digital step change taking place in well construction today. More and better data will become available for a vast number of analyses. The well construction process is complicated and includes several hundred ... -
Numerical and analytical studies of ship deckhouse impact with steel and RC bridge girders
(Peer reviewed; Journal article, 2021)Bridges crossing navigable waterways are under the threat of accidental collisions from passing ships. However, previous research focus was mainly placed on ship collision with bridge substructures while ship-bridge ... -
Shifting Hinf Linear Parameter Varying State-Feedback Controllers Subject to Time-Varying Input Saturations
(Peer reviewed; Journal article, 2021)This paper establishes a methodology based on linear matrix inequalities (LMIs) to design a shifting Hinf linear parameter varying (LPV) state-feedback controller for systems affected by time-varying input saturations. By ... -
Wet Drilled Cuttings Bed Rheology
(Peer reviewed; Journal article, 2021)The cuttings transport efficiency of various drilling fluids has been studied in several approaches. This is an important aspect, since hole cleaning is often a bottleneck in well construction. The studies so far have ... -
Recommendation on use of wind lidars
(Research report, 2021)The 15 Early Stage Researchers (ESRs) in the LIKE project investigate topics in which wind lidar play a significant role. This report provides the ESRs an introductory reading and gives a short introduction into the basic ... -
Network analysis of nitrate-sensitive oral microbiome reveals interactions with cognitive function and cardiovascular health across dietary interventions
(Peer reviewed; Journal article, 2021)Many oral bacteria reduce inorganic nitrate, a natural part of a vegetable-rich diet, into nitrite that acts as a precursor to nitric oxide, a regulator of vascular tone and neurotransmission. Aging is hallmarked by reduced ... -
Sensitivity Study of Design Parameters for a Fuel Cell Powered Multirotor Drone
(Peer reviewed; Journal article, 2021)The use of multirotor drones for industrial applications is accelerating, and fuel cell based propulsion systems are highlighted as a promising approach to improve endurance – one of the current main limitations. Due to ... -
A template to quantify the location and density of CD3 + and CD8 + tumor-infiltrating lymphocytes in colon cancer by digital pathology on whole slides for an objective, standardized immune score assessment
(Peer reviewed; Journal article, 2021)Background In colon cancer, the location and density of tumor-infiltrating lymphocytes (TILs) can classify patients into low and high-risk groups for prognostication. While a commercially available ‘Immunoscore®’ exists, ... -
etrological, geochemical (major, trace, and rare earth elements), and U–Pb zircon data of the Tamatán Group, NE Mexico
(Peer reviewed; Journal article, 2021)From samples of the Paleozoic Tamatán Group (Huizachal–Peregrina Anticlinorium, Tamaulipas, Mexico), petrographic (qualitative and modal) and geochemical analyses (major, trace, and rare earth elements) were conducted. The ... -
Is resilience a favourable concept in terrorism research? The multifaceted discourses of resilience in the academic literature
(Peer reviewed; Journal article, 2020)The concept of resilience is frequently found in academic documents describing the favoured solution for how to address the threat of terrorism. Despite this, few attempts have been made to critically examine what resilience ... -
Observations of bridge stay cable vibrations in dry and wet conditions: A case study
(Peer reviewed; Journal article, 2021)The characteristics of wind- and rain-wind-induced vibrations of bridge stay cables are studied by using ambient vibrations records acquired on a cable-stayed bridge. Mean wind speed and wind-cable angle, as well as the ...