Blar i Faculty of Mathematics and Natural Sciences på tittel
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Rapid Tephra Identification in Geological Archives With Computed Tomography: Experimental Results and Natural Applications
(Journal article; Peer reviewed, 2021)Volcanic ash (tephra) horizons represent powerful chronological and stratigraphic markers: rapid and widespread deposition allows for correlation of geological records in time and space. Recent analytical advances enable ... -
Rapid water temperature variations at the northern shelf of the Yellow Sea
(Journal article; Peer reviewed, 2021-05-06)During summer, there is great spatial variability in bottom water temperature on the northern shelf of the Yellow Sea. This variability is associated with a thermal front along the shelf. Oscillatory currents from semidiurnal ... -
Rapidity and transverse-momentum dependence of the inclusive J/\(mathbf{\psi}\) nuclear modification factor in p-Pb collisions at \(\mathbf{\sqrt{\textit{s}_{NN}}}=5.02\) TeV
(Peer reviewed; Journal article, 2015-06)We have studied the transverse-momentum \(p_{\rm T}\) dependence of the inclusive J/\).psi\) production in p-Pb collisions at \(\sqrt{s_{\rm NN}} = 5.02\) TeV, in three center-of-mass rapidity \(y_{\rm cms}\) regions, ... -
RASflow: an RNA-Seq analysis workflow with Snakemake
(Journal article; Peer reviewed, 2020)Background With the cost of DNA sequencing decreasing, increasing amounts of RNA-Seq data are being generated giving novel insight into gene expression and regulation. Prior to analysis of gene expression, the RNA-Seq ... -
Rate and power allocation for discrete-rate link adaptation
(Peer reviewed; Journal article, 2008-01-09)Link adaptation, in particular adaptive coded modulation (ACM), is a promising tool for bandwidth-efficient transmission in a fading environment. The main motivation behind employing ACM schemes is to improve the spectral ... -
Rate of Convergence for some constraint Dcomposition methods for nonlinear variational inequalities.
(Department of Applied Mathematics report, Research report, 2000-10) -
Rate of Convergence for Subspace Correction Methods for nonlinear Variational Inequalities
(Department of Applied Mathematics report, Research report, 1999-09) -
Rate of Convergence of a Space Decomposition method and Applications to Linear and Nonlinear Elliptic Problems
(Department of Applied Mathematics report, Research report, 1996-09) -
Rate-of-change analysis in palaeoecology revisited: a new approach
(Journal article; Peer reviewed, 2021)Dynamics in the rate of compositional change (rate-of-change; RoC), preserved in paleoecological sequences, are thought to reflect changes due to exogenous (climate and human forcing) or endogenous (local dynamics and ... -
Ray-Born Modelling and Full Waveform Inversion
(Master thesis, 2013-06-03)Seismic forward modelling is used to simulate seismic wave propagation in the subsurface. Common modelling techniques include methods such as the ray-Born approximation and the finite difference method. In this thesis I ... -
(Re)packing Equal Disks into Rectangle
(Journal article; Peer reviewed, 2022)The problem of packing of equal disks (or circles) into a rectangle is a fundamental geometric problem. (By a packing here we mean an arrangement of disks in a rectangle without overlapping.) We consider the following ... -
Re-evaluation and extension of the Marine Isotope Stage 5 tephrostratigraphy of the Faroe Islands region: The cryptotephra record
(Peer reviewed; Journal article, 2014-09-01)Previous studies of marine sequences from the Faroe Islands region have identified a series of coarse-grained tephra horizons deposited during Marine Isotope Stage (MIS) 5. Here we reassess the MIS 5 tephrostratigraphy of ... -
Re-sampling in beach- and sand dune communities at South West Karmøy - 2008. Some comparisons and interpretations.
(Master thesis, 2009-06-02)Sandy beaches with accompanying immature dunes as well as mature sand dunes are regarded a rare biotope in Norway. The localities of this survey are situated at the south west coast of Karmøy. As a former resident of the ... -
Reaching towards higher masses of supersymmetric particles decaying to tau leptons
(Master thesis, 2014-06-30)This thesis presents an optimisation of the search for SUSY in final states with one tau lepton, jets and missing transverse energy. The SUSY model considered is mSUGRA with the parameter values: A_0 = -2m0, tan(beta) = ... -
Reaction monitoring using vibrational spectroscopy
(Master thesis, 2012-03-14)Reaction monitoring by vibrational spectroscopy (VS), especially NIR spectroscopy, is being increasingly used during process development. Analysts usually use spectroscopy to qualitatively monitor the progress of reactions. ... -
Reaction monitoring via benchtop nuclear magnetic resonance spectroscopy: A practical comparison of on-line stopped-flow and continuous-flow sampling methods
(Journal article; Peer reviewed, 2023)The ability for nuclear magnetic resonance (NMR) spectroscopy to provide quantitative, structurally rich information makes this spectroscopic technique an attractive reaction monitoring tool. The practicality of NMR for ... -
Reaction norm analysis reveals rapid shifts toward delayed maturation in harvested Lake Erie yellow perch (Perca flavescens)
(Peer reviewed; Journal article, 2019-01-06)Harvested marine fish stocks often show a rapid and substantial decline in the age and size at maturation. Such changes can arise from multiple processes including fisheries‐induced evolution, phenotypic plasticity, and ... -
Reactivation of fractures in subsurface reservoirs - A numerical approach using a static-dynamic friction model
(Chapter; Peer reviewed; Journal article, 2019)Fluid-induced slip of fractures is characterized by strong multiphysics couplings. Three physical processes are considered: Flow, rock deformation and fracture deformation. The fractures are represented as lower-dimensional ... -
Reactive Transport in Porous Media
(Master thesis, 2011-08-01)In this thesis, we show how the common equations for flow in porous media can be expanded to account for geochemical reactions. Furthermore, the complications arising when solving the new equations numerically are described ... -
Reactive transport modelling of hydrate phase transition dynamics in porous media
(Doctoral thesis, 2015-03-27)Gas hydrate is believed to be so abundant in nature that some estimates suggest it contains more than two times equivalent energy of the whole fossil fuels on Earth. Besides, reservoir hydrates have other important aspects ...