The Standard Model (SM) accounts for about 5 % of the known univers, and can not explain gravity, the hierarchy problem or the matter-antimatter asymmetry in the univers. Supersymmetry is a new symmetry which aim to bridge ...

Accurate descriptions of many-particle quantum systems subject to laser interactions can be found using real-time ab initio methods. Of these the arguably most popular and exact is the multi-configuration time-dependent ...

Renewable energy sources play a vital role in handling the increasing energy demand, as well as the aim to reduce carbon emissions. New materials for solar cell applications are being developed for this sole reason. The ...

We have used a combination of optical absorption and electrical conductivity measurements to study the effect of the main donor on small polarons in rutile TiO2 single crystals rendered n-type conductive by hydrogenation ...

Space weather can have adverse effects on technology, such as causing disturbances of Global Navigation Satellite Systems (GNSS). As space weather effects on GNSS cannot be mitigated, it is of vital importance to develop ...

This study is aimed at increasing the performance and reliability of silicon-based heterojunction solar cells with advanced methods. This is achieved by a numerical electro-optical modeling and reliability analysis for ...

Significance: The cerebral metabolic rate of oxygen (CMRO2) is an important indicator of brain function and pathology. Knowledge about its magnitude is also required for proper interpretation of the blood oxygenation ...

This thesis describes the development and test of electrodes and electrode setup for plantar bioimpedance measurements. Several electrodes of different sizes, geometry and materials were tested to find one suited for plantar ...

I denne oppgaven er forekomsten av fasescintillasjoner på GNSS-signaler over deler av Dronning Maud Land i Antarktis kartlagt, ved bruk av scintillasjonsmottakere på Troll stasjonen (geografiske koordinater: 72.0$^\circ$S, ...

Denne avhandlingen beskriver utviklingen og testingen til et heisesystem beregnet for automatisk overvåking av innsjøer. Motivasjonen bak oppgaven er å effektivisere overvåkingen av innsjøer, slik at dyrt og krevende ...

Spaceborn instruments such as the Langmuir probe are essential to understand our own ionosphere. In this dissertation we explore the behaviour of such instruments through computer simulations, and find that some of the ...

Purpose This study aimed to quantify the repeated oxygen deficits attained during intermittent endurance exercise by measuring oxygen consumption (V˙O2) and oxygen demand (V˙O2dem) throughout a simulated roller ski ...

We theoretically analyze two setups of low-energy single-photon counters based on Josephson junctions (JJs). For this, we propose two simple and general models based on the macroscopic quantum tunneling formalism (MQT). ...

Although the space charge model is commonly used to explain the high grain boundary resistance in proton conducting yttrium-substituted BaZrO3, it fails in its simplest forms with factors 10–40 to fit experimental data ...

One of the most-important tools in modern science is the analysis of electromagnetic properties by spectroscopy. The various types of spectroscopy can be classified by the underlying type of interactions between energy and ...

Deep-level transient spectroscopy measurements are conducted onβ-Ga2O3thin-filmsimplanted with helium and hydrogen (H) to study the formation of the defect levelE∗2(EA=0.71 eV) during heat treatments under an applied ...

Self-diffusion of carbon (12C and 13C) and silicon (28Si and 30Si) in 4H silicon carbide has been investigated by utilizing a structure containing an isotope purified 4H-28Si12C epitaxial layer grown on an n-type (0001) ...

This thesis deals with the prototype development of a floating potential probe (FPP) instrument to measure spacecraft charging. The measurement concept is based on the works at the Naval Research Laboratory in Washington ...

Bioinspired metal-based nanoparticles have potential uses in many applications, but before a possible commercial exploitation, it is important to clarify the pathways of their production and deposition inside the organisms, ...

Abstract Muscle fibers are the largest cells in the body, and one of its few syncytia. Individual cell sizes are variable and adaptable, but what governs cell size has been unclear. We find that muscle fibers are DNA scarce ...

Yttrium oxyhydride (YHO) is a rare‐earth‐metal oxyhydride that has attracted considerable attention due to its outstanding photochromic properties. The transparency of YHO thin films across the infrared and visible spectral ...

With the advance of superconducting quantum computing and the attempts of extending its operating range to higher temperatures, a special attention is paid to nanostructured quantum circuits. In particular, quasi one-dimensional ...

We present a study of performance and energy resolution of a novel Super Fine-Grained Detector (SFGD) prototype. Data were collected during the second test run at the CERN T9 beam line and include pion, proton, muon and ...

We demonstrate theoretically and numerically that laser-driven many-electron dynamics, as described by bivariational time-dependent coupled-cluster theory, may be analyzed in terms of stationary-state populations. Projectors ...

Point defects in solids are promising single-photon sources with application in quantum sensing, computing and communication. Herein, we describe a theoretical framework for studying electric field effects on defect-related ...

Magnetic nanoparticles are of widespread use in nanotechnology. One of the most unusual are magnetic palladium nanoparticles that combine magnetism with high catalytic activity. These nanoparticles could be obtained ...

This thesis aims to describe the process from theory to implementation. It also describes the results obtained from the process. The main goal of the project is to analyze the possibility of using reflectrometric pulse ...

Magnetic properties of High-Entropy Alloys based on the Fe-Co-Ni-Al-Mn system are reported. High-Entropy Alloys are cutting-edge technological materials containing five or more elements in relatively high concentrations ...

The newly developed Nematic Bond Theory enables an efficient way of studying phases and phase transitions in classical frustrated magnets with Heisenberg interactions. We extend here the Nematic Bond Theory to hold for ...

Multi-particle azimuthal cumulants are measured as a function of centrality and transverse momentum using 470 μb−1 of Pb+Pb collisions at sNN−−−√ = 5.02 TeV with the ATLAS detector at the LHC. These cumulants provide ...

Electromagnetic energy carried by magnetohydrodynamic modes is an important mechanism in the energy transfer between the magnetosphere and the ionosphere. Alfvén waves are known to carry field‐aligned currents and thus ...

A measurement of the production of a prompt J/ψ meson in association with a W± boson with W± → μν and J/ψ → μ+μ− is presented for J/ψ transverse momenta in the range 8.5–150 GeV and rapidity |yJ/ψ| < 2.1 using ATLAS data ...

This paper presents results of searches for the electroweak production of supersymmetric particles in models with compressed mass spectra. The searches use 139  fb−1 of √s=13  TeV proton-proton collision data collected by ...

Searches for the Higgs boson decays H→ee and H→eμ are performed using data corresponding to an integrated luminosity of 139fb−1 collected with the ATLAS detector in ppcollisions at √s=13TeV at the LHC. No significant signals ...

Nanoporous amorphous silicon (a-Si) with <5 nm cylindrical pores have been fabricated by phase separation of aluminum (Al) and silicon, forming self-assembled Al nanowires (NWs), followed by subsequent removal of Al by wet ...

Nickel oxide, in particular in its doped, semiconducting form, is an important component of several optoelectronic devices. Doped NiO is commonly achieved either by incorporation of lithium, which readily occupies Ni sites ...

The development of defect populations after proton irradiation of n-type 4H-SiC and subsequent annealing experiments is studied by means of deep level transient (DLTS) and photoluminescence spectroscopy. A comprehensive ...

The kinetic analyses are quite important when it comes to understanding the particle behavior in any device as they start to deviate from a continuum nature. In the present study, kinetic simulations are performed using ...

Azimuthal anisotropies of muons from charm and bottom hadron decays are measured in Pb+Pb collisions at √sNN=5.02TeV. The data were collected with the ATLAS detector at the Large Hadron Collider in 2015 and 2018 with ...

Dynamic susceptibility contrast (DSC) imaging is a widely used technique for assessment of cerebral blood volume (CBV). With combined gradient-echo and spin-echo DSC techniques, measures of the underlying vessel size and ...

Abstract Motivation Conventional methods to analyze genomic data do not make use of the interplay between multiple factors, such as between microRNAs (miRNAs) and the messenger RNA (mRNA) ...

The effect of lattice anisotropy on the diffusion of hydrogen (H)/deuterium (2H) in β-Ga2O3 was investigated using secondary ion mass spectrometry (SIMS) and hybrid-functional calculations. Concentration-depth profiles of ...

A novel numerical method has been developed that incorporates electrically conducting objects into particle-in-cell simulations of electrostatic plasma. The method allows multiple objects connected by voltage and current ...

Inclusive J/ψ yields and average transverse momenta in p-Pb collisions at a center-of-mass energy per nucleon pair sNN−−−√ = 8.16 TeV are measured as a function of the charged-particle pseudorapidity density with ALICE. ...

This thesis work presents the development of the new imaging technique gamma- MRI (gamma-detected Magnetic Resonance Imaging). The fundamentals of gamma-MRI is the positioning of a gamma-emitting, Hyperpolarized (HP) nuclei ...

X-ray emission under electron-channelling conditions is used to distinguish between a non-centrosymmetric half-Heusler and a centrosymmetric full-Heusler crystal. For TiCo 1.5+ xSn the space-group determination based on a ...

Predicting the proximity of large-scale dynamic failure is a critical concern in the engineering and geophysical sciences. Here we use evolving contractive, dilatational, and shear strain deformation preceding failure in ...

Kinetic simulations are used to compute current characteristics of finite-length cylindrical probes, with particular attention to end effects. Currents collected per unit lengths, as a function of distance to the ends, are ...

Mathematical models for excitable cells are commonly based on cable theory, which considers a homogenized domain and spatially constant ionic concentrations. Although such models provide valuable insight, the effect of ...

Point defects strongly affect the electrical and optical properties of semiconductors, and are therefore of vast importance for device performance. Over recent years, however, point defects have been shown to possess ...

The sheath formation in a weakly magnetized collisionless electronegative plasma consisting of electrons and negative and positive ions has been numerically investigated using the hydrodynamic equations. The electrons and ...

At the time of energy transition, it is important to be able to predict the effects of fluid overpressures in different geological scenarios as these can lead to the development of hydrofractures and dilating high-porosity ...

Over the past 30 years, stem cell technologies matured from an attractive option to investigate neurodegenerative diseases to a possible paradigm shift in their treatment through the development of cell-based regenerative ...

In catalysts for CO2 hydrogenation, the interface between metal nanoparticles (NPs) and the support material is of high importance for the activity and reaction selectivity. In Pt NP-containing UiO Zr-metal–organic frameworks ...

Herein, we report the discovery of a toroidal inorganic cluster of zirconium(IV) oxysulfate of unprecedented size with the formula Zr70(SO4)58(O/OH)146⋅x(H2O) (Zr70), which displays different packing of ring units and thus ...

Forecasting the timing of catastrophic failure, such as crustal earthquakes, has been a central concern for centuries. Such forecasting requires identifying signals that evolve or accelerate in the precursory phase leading ...

Anomalous resistive and magnetic behavior of GdOH thin films, which belong to the novel class of materials known as oxyhydrides, is reported. The oxyhydrides contain hydrogen in its rare negatively-charged anion state in ...

We experimentally and numerically study the influence of gravity and finite-size effects on the pressure-saturation relationship in a given porous medium during slow drainage. The effect of gravity is systematically varied ...

Hydrogen diffusion through the oxide grown on Zr alloys by aqueous corrosion processes plays a critical role in determining the rate of hydrogen pickup (HPU) which can result in embrittlement of fuel cladding and limit the ...

Using first principles calculations based on density functional theory, we study the impact of hole doping on the magnetic and electronic properties of two dimensional PtS2. Although 2D PtS2 is intrinsically non-magnetic, ...

The intermittent dynamics of slow drainage flows in a porous medium is studied experimentally. This kind of two-phase flow is characterized by a rich burst activity and our setup allows us to characterize those bursts ...

Generative adversarial networks (GAN) have received much attention lately for its use with images and has been shown to be able to create extremely realistic images of different kinds of objects. Even though its use in ...

Semiconducting materials are instrumental for the transition to a carbon-free society. Materials, such as titanium dioxide (TiO2) or gallium sesquioxide (Ga2O3) are promising for a number of applications in energy harvesting ...

p-n homo- and heterojunctions are the cornerstones and defining technology of our society. Even though decades of knowledge have brought several improvements upon the transistors, LED diodes and other devices that build ...

This thesis is focused on three objectives. The first objective was to develop a method that allows automatic assessment of stem cell development conditions with the use of impedance spectroscopy and machine learning, the ...

Scaling behaviour of dynamically driven vortex avalanches in superconducting YBa2Cu3O7−δ films deposited on tilted crystalline substrates has been observed using quantitative magneto-optical imaging. Two films with different ...

The scope of this thesis was to explore the applications of electron microscopy in the field of hydrogen embrittlement (HE). The fundamental understanding of HE is still lacking and requires some advanced approaches to ...

An important part of our understanding of brain tumours relies on our ability to assess the vascular function of the tumours. Dynamic susceptibility contrast (DSC), and the novel method Vessel Architectural Imaging (VAI), ...

Naturfaglig kompetanse er viktig for både enkeltindivider og for det norske samfunnet, og engasjement og motivasjon er viktig for å styrke elevers naturfagskompetanse. I et stadig mer digitalisert samfunn er det derfor ...

The production of a prompt photon in association with a Z boson is studied in proton-proton collisions at a centre-of-mass energy s√ = 13 TeV. The analysis uses a data sample with an integrated luminosity of 139 fb−1 ...

Experimental results are presented on event-by-event net-proton fluctuation measurements in Pb–Pb collisions at √sNN=2.76 TeV, recorded by the ALICE detector at the CERN LHC. These measurements have as their ultimate goal ...