Bioimpedance spectroscopy is widely used in clinical and biotechnological applications for electrical characterization of biomaterials in a non-invasive fashion. States of the living organs dynamically change during impedance ...

Denne masteroppgaven handler om naturvitenskapens rolle i samfunnet, og det tverrfaglige samspillet som foregår i politikkutforming basert på naturvitenskap. I oppgaven undersøkes verdier tilknyttet naturvitenskap som er ...

The solar energy sector is growing rapidly and solar cells are expected to be the main source of energy in the future. To ensure sustainable growth, the solar cells need to be cheap and accessible. Thin film solar cells ...

Artificial neural networks are fitted to molecular dynamics trajectories using the Behler-Parrinello method of atom-centered symmetry functions in order to obtain analytical interatomic potentials. Molecular dynamics ...

Computation is a central aspect of 21st century physics practice; it is used to model complicated systems, to simulate impossible experiments, and to analyze mountains of data. Physics departments and their faculty are ...

Particle physics is addressing some of the grandest questions, armed with big science machines: high energy particle colliders. These machines have, however, ballooned in size, and new technologies for accelerating particles ...

WLAN (Wireless local area network ), also known as Wi-Fi has gained lots of attention during the past two decades due to its promising capabilities, ease of installation and low-cost of access points (APs), which offers ...

It is known that (ZnO)1−x(GaN)x alloys demonstrate remarkable energy band bowing, making the material absorb in the visible range, in spite of the binary components being classical wide band gap semiconductors. However, ...

This thesis deals with the development of an instrument for performing impedance measurements on cells. Small, portable, wearable and even implanted devices are becoming increasingly common in our daily lives and future ...

Rocks, ceramics, metals and many other materials are made up of crystals. More than 150 years ago scientists realized that when crystals grow inside a confining solid it may exert a force on the confining solid. This "force ...

This thesis brings together fundamental studies presented in five papers with the focus on the investigation of defects in the wide bandgap semiconductor β-Ga2O3. A broad range of methods was applied; in particular the ...

Calcium carbonate is one of the most abundant materials found in the Earth’s crust and very often it acts as a natural cement to form several rocks like limestone, chalk and marble. However, despite of its abundance and ...

Self-affine surfaces are found in many physical systems, making it important to study flow over such surfaces. This project develops a code to simulate, through the coupled Lattice Boltzmann Method, gravity-stabilized flow, ...

We investigate the migration mechanism of the carbon vacancy (VC) in silicon carbide (SiC) using a combination of theoretical and experimental methodologies. The VC, commonly present even in state-of-the-art epitaxial SiC ...

Reliable single-photon emission is crucial for realizing efficient spin-photon entanglement and scalable quantum information systems. The silicon vacancy (VSi) in 4H-SiC is a promising single-photon emitter exhibiting ...

We perform multiple large molecular dynamics simulations to study the fracture behaviour of monocrystalline methane hydrates under tension. We examine the fracture initiation phase and find that the fracture process can ...

This thesis describes how bioimpedance measurements can be used to assess the viability (live or die) of the small intestines, after a period without sufficient blood supply (ischemia). Using machine learning we were able ...

NorSat-1 was launched on July 14, 2017 as a satellite carrying, among other instruments, the multineedle Langmuir probe (m-NLP), an instrument which, on NorSat-1, is capable of measuring the ionospheric plasma electron ...

Context. Solar wind charge-changing reactions are of paramount importance to the physico-chemistry of the atmosphere of a comet, mass-loading the solar wind through an effective conversion of fast light solar wind ions ...

Owing to fully occupied orbitals, noble gases are considered to be chemically inert and to have limited effect on materials properties under standard conditions. However, using first-principles calculations, we demonstrate ...

Mixed oxide hydride anion systems constitute a novel class of materials exhibiting intriguing properties such as solid-state hydride ion conduction and fast anion exchange. In this contribution we derive the kinetics of ...

Last year, we reported a perturbative theory of the Casimir-Lifshitz torque between planar biaxially anisotropic materials in the retarded limit [Thiyam et al., Phys. Rev. Lett. 120, 131601 (2018)], which is applied here ...

The pseudorapidity density of charged particles, dNch/dη, in p–Pb collisions has been measured at a centre-of-mass energy per nucleon–nucleon pair of sNN−−−√ = 8.16 TeV at mid-pseudorapidity for non-single-diffractive ...

This paper describes the reconstruction of electrons and photons with the ATLAS detector, employed for measurements and searches exploiting the complete LHC Run 2 dataset. An improved energy clustering algorithm is introduced, ...

The reduced transition probability B(E2;0+1→ 2 + 1 ) to the first excited 2+ state of the neutron-rich nucleus 136 Te , with two protons and two neutrons outside the doubly magic 132 Sn core, was measured via Coulomb ...

The production of the ρ(770)0 meson has been measured at midrapidity (|y|<0.5) in pp and centrality differential Pb-Pb collisions at √sNN= 2.76 TeV with the ALICE detector at the Large Hadron Collider. The particles have ...

We report on the first femtoscopic measurement of baryon pairs, such as p−p, p−Λ, and Λ−Λ, measured by ALICE at the Large Hadron Collider (LHC) in proton-proton collisions at √s=7TeV. This study demonstrates the feasibility ...

The production yield of the Λ(1520) baryon resonance is measured at midrapidity in Pb-Pb collisions at √sNN = 2.76 TeV with the ALICE detector at the Large Hadron Collider (LHC). The measurement is performed in the Λ(1520)→pK− ...

Objective: To assess the role of [18F]fluorodeoxyglucose (FDG) positron emission tomography (PET), obtained before and during chemoradiotherapy, in predicting locoregional failure relative to clinicopathological factors ...

Photoneutron cross sections were measured for 203Tl and 205Tl at energies between the one- and two-neutron thresholds using quasimonochromatic γ -ray beams produced in laser Compton scattering at the NewSUBARU synchrotron ...

The production of concrete for construction purposes is a major source of anthropogenic CO2 emissions. One promising avenue towards a more sustainable construction industry is to make use of naturally occurring mineral-microbe ...

Flow of immiscible fluids in porous media at high capillary numbers may be characterized by an effective viscosity. We demonstrate that the effective viscosity is well-described by the Lichtenecker-Rother equation. Depending ...

The ground states of the general three-state lattice-gas (equivalently, S = 1 Ising) model with nearest-neighbor interactions on a square lattice are explored in the full, five-dimensional parameter space of three interaction ...

Measurements of anisotropic flow coefficients ( v n ) and their cross-correlations using two- and multiparticle cumulant methods are reported in collisions of pp at √ s = 13     TeV , p− Pb at a center-of-mass energy per ...

Two-particle correlations in high-energy collision experiments enable the extraction of particle source radii by using the Bose-Einstein enhancement of pion production at low relative momentum q ∝ 1/R. It was previously ...

A measurement of jet substructure observables is presented using data collected in 2016 by the ATLAS experiment at the LHC with proton-proton collisions at s√ = 13 TeV. Large-radius jets groomed with the trimming and ...

Toroidal sigma models of magneto-transport are analyzed, in which integer and fractional quantum Hall effects automatically are unified by a holomorphic modular symmetry, whose group structure is determined by the spin ...

Reaction-infiltration instability refers to the morphological instability of a reactive fluid front flowing in a soluble porous medium. This process is important for many naturally occurring phenomena, such as the weathering ...

During progressive burial, low permeability organic-rich shale rocks evolve chemically and physically as the temperature and stress increase and organic matter matures. The transformation of organic matter into hydrocarbon, ...

The production of concrete is one of the most significant contributors to global greenhouse gas emissions. This work focuses on bio-cementation-based products and their potential to reduce global warming potential (GWP). ...

Quantum spin systems with strong geometric restrictions give rise to rich quantum phases such as valence bond solids and spin liquid states. However, the geometric restrictions often hamper the application of sophisticated ...

The ALPIDE is a radiation detector developed for the upgrade of the ALICE experiment at CERN. To be able to characterize this detector, and to do radiation measurements with it outside the ALICE environment, an easy to use ...

This paper presents a measurement of quantities related to the formation of jets from high-energy quarks and gluons (fragmentation). Jets with transverse momentum 100 GeV <pT<2.5  TeV and pseudorapidity |η|<2.1 from an ...

I denne avhandlingen har Anders Hafreager utviklet forskningsverktøyet Atomify som syr sammen de forskjellige stegene i et numeriment: planlegging, kjøring og analyse. Ved å kunne se numerimentet i sanntid i et og samme ...

Restriction spectrum imaging (RSI) is a recently introduced magnetic resonance imaging diffusion technique. The utility of RSI in multiple sclerosis (MS) is unknown. To investigate the association between RSI-derived ...

We study the layered J1− J 2 classical Heisenberg model on the square lattice using a self-consistent bond theory. We derive the phase diagram for fixed J1 as a function of temperature T, J2, and interplane coupling Jz. ...

We have calculated the electronic properties and layer stacking patterns for a group of twelve hexagonal covalent organic frameworks. This has been done in order to explore this group of materials on a fundamental level ...

Pituitary endocrine cells fire action potentials (APs) to regulate their cytosolic Ca2+ concentration and hormone secretion rate. Depending on animal species, cell type, and biological conditions, pituitary APs are generated ...

A search for the decay of neutral, weakly interacting, long-lived particles using data collected by the ATLAS detector at the LHC is presented. The analysis in this paper uses 36.1  fb−1 of proton-proton collision data at ...

An unmanned ground vehicle (UGV) that should operate autonomously on the road as well as in the terrain, is equipped with sensors that perceive the environment. The information from the sensors can be combined to create a ...

Background Following curative-intent neoadjuvant therapy in locally advanced rectal cancer, metastatic progression is still dominant. We investigated if patients’ circulating 25-hydroxyvitamin D [25(OH)D] ...

Solid-state batteries is one of the main contenders for domination of the future battery marked. Thin film technology is important in the development of these batteries. In this work, we have shown that amorphous thin film ...

In this thesis we explore the relationship between information processing and physics. We use various techniques, including deep learning, to optimize the information-to-energy conversion in microscopic machines. The ...

Zn substitutional lithium ( Li Zn ) and sodium ( Na Zn ) acceptors and their complexes with common donor impurities ( Al Zn , Hi, and HO) in ZnO have been studied using hybrid functional calculations. The results show ...

Modelling of wire-arc additive manufacturing process is an effective way for adapting the optimum parameters as well as understanding and managing the sequences of layer-by-layer deposition. Some of these parameters such ...

Sodium and oxygen are prevalent impurities in kesterite solar cells. Both elements are known to strongly impact performance of the kesterite devices and can be connected to efficiency improvements seen after heat treatments. ...

The first direct observation of gravitational waves in 2015 has led to an increased public interest in topics of general relativity (GR) and astronomy. Physics teachers and educators respond to this interest by introducing ...

The production yield of prompt D mesons and their elliptic flow coefficient v2 were measured with the Event-Shape Engineering (ESE) technique applied to mid-central (10–30% and 30–50% centrality classes) Pb-Pb collisions ...

This paper describes a search for events with one top-quark and large missing transverse momentum in the final state. Data collected during 2015 and 2016 by the ATLAS experiment from 13 TeV proton–proton collisions at the ...

This paper presents measurements of W± Z production cross sections in pp collisions at a centre-of-mass energy of 13 TeV. The data were collected in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider, and ...

The ratio of the cross sections for inclusive isolated-photon production in pp collisions at centre-of-mass energies of 13 and 8 TeV is measured using the ATLAS detector at the LHC. The integrated luminosities of the 13 ...

An observation of electroweak W ± Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass ...

A search for heavy charged long-lived particles is performed using a data sample of 36.1  fb−1 of proton-proton collisions at √s=13  TeV collected by the ATLAS experiment at the Large Hadron Collider. The search is based ...

This paper presents measurements of the W+ → μ+ν and W− → μ−ν cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton– proton ...

A search for the production of three massive vector bosons in proton–proton collisions is performed using data at √s = 13 TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015–2017, corresponding ...

Silicon pixel detectors are at the core of the current and planned upgrade of the ATLAS experiment at the LHC. Given their close proximity to the interaction point, these detectors will be exposed to an unprecedented amount ...

This Letter presents the first experimental observation of the attractive strong interaction between a proton and a multistrange baryon (hyperon) Ξ−. The result is extracted from two-particle correlations of combined ...

The correlations of identical charged kaons were measured in p-Pb collisions at √sNN=5.02 TeV by the ALICE experiment at the LHC. The femtoscopic invariant radii and correlation strengths were extracted from one-dimensional ...

Predictions of the anisotropic coefficients of thermal expansion are needed to not only compare to experimental measurement, but also as input for macroscopic modeling of devices which operate over a large temperature ...