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Isbjørnens effekt på fugl i et arktisk klima i endring - Sluttrapport for Svalbards miljøvernfond
(NINA Rapport;1163, Research report, 2015)Arktis blir stadig varmere og utbredelsen av havis blir mindre. Det forandrer leveområdet til de mange artene som er avhengige av havis. Isbjørnen er avhengig av havis for å jakte på sel, og økende lengde på den isfrie ... -
Isentropic fluid dynamics in a curved pipe
(Journal article; Peer reviewed, 2016)In this paper we study isentropic flow in a curved pipe. We focus on the consequences of the geometry of the pipe on the dynamics of the flow. More precisely, we present the solution of the general Cauchy problem for ... -
ISIDOG Consensus Guidelines on COVID-19 Vaccination for Women before, during and after Pregnancy
(Peer reviewed; Journal article, 2021)Introduction. Sars-CoV-2 infection poses particular problems in pregnancy, as the infection more frequently causes severe complications than in unaffected pregnant women or nonpregnant women with SARS-CoV-2 infection. Now ... -
ISIDOG recommendations concerning COVID-19 and pregnancy
(Peer reviewed; Journal article, 2020)Providing guidelines to health care workers during a period of rapidly evolving viral pandemic infections is not an easy task, but it is extremely necessary in order to coordinate appropriate action so that all patients ... -
Islam, Oil, and the Middle East Region: An Empirical Analysis of the Repression of Religion, 1980-2013
(Journal article; Peer reviewed, 2017)There is a lively debate on the relative impacts of Islam, oil wealth, and Middle Eastern institutional legacies regarding democratization and the spread of liberal values. We examine this issue using religious repression. ... -
Isogeometric Analysis of Acoustic Scattering using Infinite Elements
(Journal article; Peer reviewed, 2018)Isogeometric analysis (IGA) has proven to be an improvement on the classical finite element method (FEM) in several fields, including structural mechanics and fluid dynamics. In this paper, the performance of IGA coupled ... -
Isogeometric analysis of acoustic scattering with perfectly matched layers (IGAPML)
(Peer reviewed; Journal article, 2022)The perfectly matched layer (PML) formulation is a prominent way of handling radiation problems in unbounded domain and has gained interest due to its simple implementation in finite element codes. However, its simplicity ... -
Isogeometric analysis of finite deformation nearly incompressible solids
(Peer reviewed; Journal article, 2011)This paper addresses the use of isogeometric analysis to solve finite deformationsolid mechanics problems, in which volumetric locking may be encountered. The current workis based on the foundation developed in the project ... -
Isogeometric analysis of THM coupled processes in ground freezing
(Journal article; Peer reviewed, 2017)An isogeometric analysis (IGA) based numerical model is presented for simulation of thermo-hydro-mechanically (THM) coupled processes in ground freezing. The momentum, mass and energy conservation equations are derived ... -
Isogeometric analysis using LR B-splines
(Journal article; Peer reviewed, 2014)The recently proposed locally refined B-splines, denoted LR B-splines, by Dokken et al. (2013) [6] may have the potential to be a framework for isogeometric analysis to enable future interoperable computer aided design and ... -
Isogeometric boundary element method for acoustic scattering by a submarine
(Journal article; Peer reviewed, 2019)Isogeometric analysis with the boundary element method (IGABEM) has recently gained interest. In this paper, the approximability of IGABEM on 3D acoustic scattering problems will be investigated and a new improved BeTSSi ... -
Isogeometric collocation for implicit dynamics of three-dimensional beams undergoing finite motions
(Journal article; Peer reviewed, 2019)We propose a novel approach to the implicit dynamics of shear-deformable geometrically exact beams, based on the isogeometric collocation method combined with the Newmark time integration scheme extended to the rotation ... -
Isogeometric collocation for the Reissner–Mindlin shell problem
(Journal article; Peer reviewed, 2017)We present an isogeometric collocation formulation for the Reissner-Mindlin shell problem. After recalling the necessary basics on differential geometry and the shell governing equations, we show that the standard approach ... -
Isogeometric divergence-conforming variational multiscale formulation of incompressible turbulent flows
(Journal article, 2016)A new residual-based variational multiscale (RBVMS) formulation for incompressible turbulent flows is proposed that is suitable for discretization using divergence-conforming B-splines. The proposed methodology results in ... -
An isogeometric finite element-boundary element approach for the vibration analysis of submerged thin-walled structures
(Peer reviewed; Journal article, 2021)In this paper, the isogeometric formulations of the finite element and boundary element methods are applied to the dynamic analysis of thin-walled structures submerged in an infinite, inviscid, and incompressible fluid ... -
Isogeometric Kirchhoff-Love shell formulation for elasto-plasticity
(Journal article; Peer reviewed, 2018)An isogeometric thin shell formulation allowing for large-strain plastic deformation is presented. A stress-based approach is adopted, which means that the constitutive equations are evaluated at different integration ... -
Isogeometric methods for CFD and FSI-simulation of flow around turbine blades
(Journal article; Peer reviewed, 2015)Coupled fluid-structure interaction simulations of wind turbines have traditionally been considered computationally too expensive to carry out. However, more powerful computers and better solution techniques based on ... -
Isogeometric Modeling and Experimental Investigation of Moving-Domain Bridge Aerodynamics
(Journal article; Peer reviewed, 2019)Computational fluid dynamics (CFD) and fluid–structure interaction (FSI) are growing disciplines in the aeroelastic analysis and design of long-span bridges, which, with their bluff body characteristics, offer major ... -
Isolated and combined effects of high-intensity interval training and time-restricted eating on glycaemic control in reproductive-aged women with overweight or obesity: Study protocol for a four-armed randomised controlled trial
(Peer reviewed; Journal article, 2021)Introduction Overweight and obesity in reproductive aged women is a global problem due to the increased risk of subfertility, pregnancy complications and cardiometabolic diseases. High-intensity interval training and ... -
Isolated Handwritten Character Recognition of Ancient Hebrew Manuscripts
(Journal article, 2022)Character recognition is widely considered an essential factor in preserving and digitizing historical handwritten documents. While it has shown a significant impact, the character recognition of historical handwritten ...