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Now showing items 1991-2000 of 3781
(Research report / Forskningsrapport, 1976)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Nocturnal low-level jets (LLJs) are defined as relative maxima in the vertical profile of the horizontal wind speed at the top of the stable boundary layer. Such peaks constitute major power resources for wind turbines. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Compound events (CEs) are multivariate extreme events in which the individual contributing variables may not be extreme themselves, but their joint – dependent – occurrence causes an extreme impact. Conventional univariate ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)
We prove a verification theorem for a class of singular control problems which model optimal harvesting with density-dependent prices or optimal dividend policy with capital-dependent utilities. The result is applied to ...
(Master thesis / Masteroppgave, 2018)
Given a non-principal ultrafilter, we define and prove properties of ultralimits of measure spaces (including σ-algebras, filtrations and measures), random variables and discrete-time stochastic processes. Among other ...
(Research report / Forskningsrapport, 1995)
(Journal article / Tidsskriftartikkel / SubmittedVersion, 2016)
The admission flow generated by a parallel valve diesel engine cylinder head was investigated by planar and stereoscopic Particle Image Velocimetry in a steady flow test bench through measurements in the swirl and tumble ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Observations of wave propagation in landfast ice were obtained in Tempelfjorden, Svalbard during March 2015. Wave motion was measured near the ice edge using inertial motion units and consisted of a combination of swell ...
(Journal article / Tidsskriftartikkel / SubmittedVersion, 2017)
In this paper we construct a new type of noise of fractional nature that has a strong regularizing effect on differential equations. We consider an equation with this noise with a highly irregular coefficient. We employ a ...
(Journal article / Tidsskriftartikkel / SubmittedVersion, 2018)
We introduce algebraic dynamical systems, which consist of an action of a right LCM semigroup by injective endomorphisms of a group. To each algebraic dynamical system we associate a C*-algebra and describe it as a semigroup ...