Browsing Bergen Open Research Archive by Title
Now showing items 21546-21565 of 34090
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Nonlinear cross-spectrum analysis via the local Gaussian correlation
(Journal article, 2017)Spectrum analysis can detect frequency related structures in a time series \(\{Y_t\}_{t\in\mathbb{Z}}\), but may in general be an inadequate tool if asymmetries or other nonlinear phenomena are present. This limitation is ... -
A Nonlinear Differential Equation Solver With Potential Application to Pelton Turbines
(Doctoral thesis, 2016-05-02)The focus in this thesis is the development and implementation of a new method for solving nonlinear differential equations on a grid. The method’s novelty lies in the way it represents continuously distributed variables ... -
Nonlinear echoes from encapsulated antibubbles
(Peer reviewed; Journal article, 2015-09-19)An antibubble consists of a liquid droplet, surrounded by a gas, often with an encapsulating shell. Antibubbles of microscopic sizes suspended in fluids are acoustically active in the ultrasonic range. Antibubbles have ... -
Nonlinear Effects During Transient Fluid Flow in Reservoirs as Encountered in Well-Test Analysis
(Department of Applied Mathematics report, Research report, 1985-03) -
Nonlinear equations of acoustics in inhomogeneous, thermoviscous fluids
(Department of Applied Mathematics report, Research report, 1991-03) -
Nonlinear feedback shift registers and generating of binary de Bruijn sequences
(Master thesis, 2016-11-21) -
A Nonlinear Formulation of Radiation Stress and Applications to Cnoidal Shoaling
(Journal article; Peer reviewed, 2021)In this article, we provide formulations of energy flux and radiation stress consistent with the scaling regime of the Korteweg–de Vries (KdV) equation. These quantities can be used to describe the shoaling of cnoidal waves ... -
A nonlinear multi-scale model for blood circulation in a realistic vascular system
(Journal article; Peer reviewed, 2021)In the last decade, numerical models have become an increasingly important tool in biological and medical science. Numerical simulations contribute to a deeper understanding of physiology and are a powerful tool for better ... -
Nonlinear propagation and interaction of collinear sound beams
(Department of Applied Mathematics report, Research report, 1989-10) -
Nonlinear response of atmospheric blocking to early Winter Barents-Kara seas warming: An idealized model study
(Journal article; Peer reviewed, 2021)Wintertime Ural blocking (UB) has been shown to play an important role in cold extremes over Eurasia, and thus it is useful to investigate the impact of warming over the Barents–Kara Seas (BKS) on the behavior of Ural ... -
Nonlinear spectral analysis via the local Gaussian correlation
(Journal article, 2017)The spectral distribution \(f(\omega)\) of a stationary time series \(\{Y_t\}_{t\in\mathbb{Z}}\) can be used to investigate whether or not periodic structures are present in \(\{Y_t\}_{t\in\mathbb{Z}}\), but \(f(\omega)\) ... -
Nonlinear Spectral Analysis: A Local Gaussian Approach
(Journal article; Peer reviewed, 2022)The spectral distribution f(ω) of a stationary time series {Yt}t∈Z can be used to investigate whether or not periodic structures are present in {Yt}t∈Z, but f(ω) has some limitations due to its dependence on the autocovariances ... -
Nonlinear Spectrum Analysis based on the Local Gaussian Correlation and Model Selection for Copulas
(Doctoral thesis, 2017-11-20) -
The nonlinearities in the galvanostatic charging curves of supercapacitors provide insights into charging mechanisms
(Journal article; Peer reviewed, 2022)Supercapacitors are often charged using constant currents. The capacitance can be determined from the slope of the voltage-time curve if the measured voltage over the supercapacitor increases linearly with time. However, ... -
Nonlocal Models for Undular Bores
(Master thesis, 2022-06-01) -
Nonmedical Anabolic-Androgenic Steroid Use: Prevalence, Attitudes, and Social Perception
(Doctoral thesis, 2015-05-27)It is important that trends in the prevalence of illicit anabolic-androgenic steroid (AAS) use are monitored and understood globally in order to avert this public health problem. This necessitates the extension of research ... -
Nonsocial cognitive underpinnings of theory of mind in schizophrenia
(Journal article; Peer reviewed, 2020)Social cognition is a mediator between nonsocial cognition and functional outcome in schizophrenia. However, the relationship between specific nonsocial cognitive and social cognitive domains is less clear. The aim of this ... -
Nonstationarity of the link between the Tropics and the summer East Atlantic pattern
(Journal article; Peer reviewed, 2021)A 700-year pre-industrial control run with the MPI-ESM-LR model is used to investigate the link between the summer East Atlantic (SEA) pattern and the Pacific-Caribbean rainfall dipole (PCD), a link that has previously ... -
Nonsupine positioning after macular hole surgery: A prospective multicenter study
(Peer reviewed; Journal article, 2019)Purpose: To evaluate the postoperative closure rate of full-thickness macular holes (MHs) after nonsupine positioning, which means that the patients avoid upward gaze and a supine sleeping position, and to investigate the ... -
Nonverbal communication as argumentation: the case of political television debates
(Journal article; Peer reviewed, 2023)This paper demonstrates how nonverbal communication may per-form argumentative functions in television debates by acclaiming and defending the debater’s own ethos and in attacking the oppo-nent’s ethos. We argue that studies ...