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Now showing items 101-200 of 2540
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
This paper describes the theory for performing retrieval of radio occultations that use probing frequencies in the XK and KM band. Normally, radio occultations use frequencies in the L band, and GPS satellites are used as ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
We demonstrate that the entropy per electron of a two-dimensional electron gas (2DEG) exhibits quantized peaks at resonances between the chemical potential and electron levels of size quantization. In the limit of no ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
We have made a simple and natural modification of a recent quantum refrigerator model presented by Cleuren et al. [Phys. Rev. Lett. 108, 120603 (2012)]. The original model consist of two metal leads acting as heat baths ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
A new model for hydrogen-assisted fatigue crack growth (HAFCG) in BCC iron under a gaseous hydrogen environment has been established based on various methods of observation, i.e., electron backscatter diffraction (EBSD), ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The injection of a reactive fluid into an open fracture may modify the fracture surface locally and create a ramified structure around the injection point. This structure will have a significant impact on the dispersion ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Background Elucidating the neurobiological effects of sleep and waking remains an important goal of the neurosciences. Recently, animal studies indicated that sleep is important for cell membrane and myelin maintenance in ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Antideuterons are a potential messenger for dark matter annihilation or decay in our own Galaxy, with very low backgrounds expected from astrophysical processes. The standard coalescence model of antideuteron formation, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
Ground-based observations of dayside auroral forms and magnetic perturbations in the arctic sectors of Svalbard and Greenland, in combination with the high-resolution measurements of ionospheric ion drift and temperature ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
The Lindås Nappe, Bergen Arc, is located in western Norway and displays two high-grade metamorphic structures. A Precambrian granulite facies foliation is transected by Caledonian fluid-induced eclogite-facies shear zones ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
The tt̄ production cross-section dependence on jet multiplicity and jet transverse momentum is reported for proton-proton collisions at a centre-of-mass energy of 7 TeV in the single-lepton channel. The data were collected ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
The photocatalytic efficiency of a thin-film TiO2-coated nanostructured template is studied by dye degradation in water. The nanostructured template was synthesized by metal-assisted wet etching of Si and used as substrate ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
This paper describes a measurement of the Z/γ * boson transverse momentum spectrum using ATLAS proton-proton collision data at a centre-of-mass energy of s√=7 TeV at the LHC. The measurement is performed in the Z/γ * → e ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
The climatology map of the GPS phase scintillation identifies two regions of high scintillation occurrences: around magnetic noon and around magnetic midnight. The scintillation occurrence rate is higher around noon, while ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
Absorption of radio waves in the polar ionosphere near the magnetic noon was observed on October 8, 1991, by the 30 MHz imaging riometer at Ny-Alesund, Svalbard (invariant latitude 76.1°). These observations showed that ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
To study how macroscopic friction phenomena originate from microscopic junction laws, we introduce a general statistical framework describing the collective behavior of a large number of individual microjunctions forming ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2008)
Conditional sampling methods are generalized by applying a matched-filter on the reference signal. This generalized method is illustrated by data obtained in a magnetized toroidal plasma without rotational transform. By ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
A DFT study of radiation induced alkoxy radical formation in crystalline α-L-rhamnose has been performed to better understand the processes leading to selective radical formation in carbohydrates upon exposure to ionizing ...
(Journal article / Tidsskriftartikkel / PublishedVersion, 2015)
© 2015 American Physical Society
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
Background
Radiotherapy (RT) and androgen-deprivation therapy (ADT) are standard treatments for advanced prostate cancer (PC). Tumor vascularization is recognized as an important physiological feature likely ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
The transition from stick to slip at a dry frictional interface occurs through the breaking of microjunctions between the two contacting surfaces. Typically, interactions between junctions through the bulk lead to rupture ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Low-energy ions of ionospheric origin constitute a significant contributor to the magnetospheric plasma population. Measuring cold ions is difficult though. Observations have to be done at sufficiently high altitudes and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
We present two examples from the cusp ionosphere over Svalbard, where poleward moving auroral forms (PMAFs) are causing significant phase scintillation in signals from navigation satellites. The data were obtained using a ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Correlations in azimuthal angle extending over a long range in pseudorapidity between particles, usually called the “ridge” phenomenon, were discovered in heavy-ion collisions, and later found in pp and p–Pb collisions. ...
(Journal article / Tidsskriftartikkel / SubmittedVersion, 2015)
The rupture of dry frictional interfaces occurs through the propagation of fronts breaking the contacts at the interface. Recent experiments have shown that the velocities of these rupture fronts range from quasistatic ...
(Journal article / Tidsskriftartikkel / SubmittedVersion, 2016)
For practical applications of superconducting materials in applied magnetic fields, artificial pinning centres in addition to natural ones are required to oppose the Lorentz force. These pinning centres are actually various ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
As the chemical structures of radiation damaged molecules may differ greatly from their undamaged counterparts, investigation and description of radiation damaged structures is commonly biased by the researcher. Radical ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
High-resolution in situ measurements from the three Swarm spacecraft, in a string-of-pearls configuration, provide new insights about the combined role of flow channel events and particle impact ionization in creating F ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
A novel and simple chemical method based on sol-gel processing was proposed to deposit metastable orthorhombic tin oxide (SnOx) thin films on glass substrates at room temperature. The resultant samples are labeled according ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)
Sublimation-grown 3C-SiC crystals were implanted with 2 atomic percent of boron ions at elevated temperature (400 °C) using multiple energies (100 to 575 keV) with a total dose of 8.5×1016 atoms/cm2. The samples were then ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
Monocrystalline n-type zinc oxide (ZnO) samples prepared by different techniques and containing various amounts of lithium (Li) have been studied by positron annihilation spectroscopy (PAS) and secondary ion mass spectrometry. ...
Generalized laminar population analysis (gLPA) for interpretation of multielectrode data from cortex
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Laminar population analysis (LPA) is a method for analysis of electrical data recorded by linear multielectrodes passing through all lamina of cortex. Like principal components analysis (PCA) and independent components ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Electromagnetic transition strengths and spectroscopic quadrupole moments for 140Sm were measured by means of multi-step Coulomb excitation with radioactive beam at the ISOLDE facility at CERN. A complementary experiment ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
The previously accepted spin values of the 991 and 1599 keV levels in Sm140 have been revised and established as 2+ and 0(+), respectively. The γ−γ angular correlation method was used to determine the new spin values. The ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
This paper presents research on polar cap ionosphere space weather phenomena conducted during the European Cooperation in Science and Technology (COST) action ES0803 from 2008 to 2012. The main part of the work has been ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)
The ratio of the yields of antiprotons to protons in pp collisions has been measured by the ALICE experiment at root s = 0.9 and 7 TeV during the initial running periods of the Large Hadron Collider. The measurement covers ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)
We presented time series of total ozone column amounts (TOCAs) and erythemal UV (EUV) doses derived from measurements by TOMS (Total Ozone Mapping Spectrometer) instruments on board the Nimbus-7 (N7) and the Earth Probe ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
The Casimir force between two surfaces is attractive in most cases. Although stable suspension of nano-objects has been achieved, the sophisticated geometries make them difficult to be merged with well-established thin ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)
In this work we present a significant advancement in cubic silicon carbide (3C-SiC) growth in terms of crystal quality and domain size, and indicate its potential use in photovoltaics. To date, the use of 3C-SiC for ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Recent progresses in nanoscale semiconductor technology have heightened the need for measurements of band gaps with high spatial resolution. Band gap mapping can be performed through a combination of probe-corrected scanning ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Purpose To establish whether reliable voxel-wise assessment of perfusion in cerebral white matter (WM) is possible using arterial spin labeling (ASL) at 3T in a cohort of healthy subjects.
Materials and Methods Pseudo-continuous ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the results of three-dimensional femtoscopic analyses for charged and neutral kaons recorded by ALICE in Pb-Pb collisions at √ s NN = 2.76 TeV. Femtoscopy is used to measure the space-time characteristics of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Highlights of recent results from the ALICE collaboration are presented. The collision systems investigated are Pb–Pb, p–Pb, and pp, and results from studies of bulk particle production, azimuthal correlations, open and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
Principal slip zones often contain highly reflective surfaces referred to as fault mirrors, shown to consist of a nanogranular coating. There is currently no consensus on how the nanograins form, or why they survive ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
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, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
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 ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
There is a need for isolated current sources for use in selected bio- impedance measurement circuits. The requirement for good isolation is particularly important in medical settings because of safety concerns. A new circuit ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
Band gap variations in thin film structures, across grain boundaries, and in embedded nanoparticles are of increasing interest in the materials science community. As many common experimental techniques for measuring band ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Thermoelectric application of half-Heusler compounds suffers from their fairly high thermal conductivities. Insight into how effective various scattering mechanisms are in reducing the thermal conductivity of fabricated ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2005)
On 6 December 2002, during winter darkness, an extraordinary event occurred in the sky, as viewed from Longyearbyen (78° N, 15° E), Svalbard, Norway. At 07:30 UT the southeast sky was surprisingly lit up in a deep red ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The optical band gap of ZnO has been measured as a function of temperature using Electron Energy-Loss Spectroscopy (EELS) in a (Scanning) Transmission Electron Microscope ((S)TEM) from approximately 100 K up towards 1000 K. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Diffusion of lithium (Li) in uniformly gallium (Ga)-doped monocrystalline bulk Zinc Oxide (ZnO) is studied over a wide temperature range (500 − 1150◦C) and is demonstrated to be dictated by the distribution of Ga. Below ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Based on three winters of observational data, we present those ionosphere parameters deemed most critical to realistic space weather ionosphere and thermosphere representation and prediction, in regions impacted by variability ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Background
This work investigates a general method for producing alginate gel matrices using an internal mode of gelation that depends solely on soluble alginate and alginate/gelling ion particles. The ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
In high-energy heavy-ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this Letter, we report the first results of such studies ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Missing information in motion capture data caused by occlusion or detachment of markers is a common problem that is difficult to avoid entirely. The aim of this study was to develop and test an algorithm for reconstruction ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
The formation of donor and acceptor states of the trivacancy-oxygen (V 3O) complex in p- and n-type silicon, respectively, has been studied in detail by means of deep level transient spectroscopy. The samples were irradiated ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Identification of the cellular players and molecular messengers that communicate neuronal activity to the vasculature driving cerebral hemodynamics is important for (1) the basic understanding of cerebrovascular regulation ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
In this work, a comprehensive study on the transition of divacancy (V2) to divacancy-oxygen (V2O) pairs in p-type silicon has been performed with deep level transient spectroscopy (DLTS). Czochralski grown, boron doped ...
(Journal article / Tidsskriftartikkel / SubmittedVersion, 2017)
We investigate the effects of magnetic impurities on the upper critical field (μ 0 H c2) in La-doped CaFe2As2 (LaCa122) single crystals. The magnetic field dependency of the superconducting transition temperature (T c) for ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
This paper presents the first performance results of the ALICE TPC Readout Control Unit 2 (RCU2). With the upgraded hardware typology and the new readout scheme in FPGA design, the RCU2 is designed to achieve twice the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
This study surveys space weather effects on GNSS (Global Navigation Satellite System) signals in the nighttime auroral and polar cap ionosphere using scintillation receivers, all-sky imagers, and the European Incoherent ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
A detailed study of pseudorapidity densities and multiplicity distributions of primary charged particles produced in proton–proton collisions, at s√= 0.9, 2.36, 2.76, 7 and 8 TeV, in the pseudorapidity range |η|<2, was ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
With rapidly advancing multi-electrode recording technology, the local field potential (LFP) has again become a popular measure of neuronal activity in both research and clinical applications. Proper understanding of the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
We present measurements of the elliptic (v2), triangular (v3) and quadrangular (v4) anisotropic azimuthal flow over a wide range of pseudorapidities (−3.5<η<5). The measurements are performed with Pb–Pb collisions at View ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
We report on the experimental observation of the attraction of a beam of ultrarelativistic electrons towards a column of neutral plasma. In experiments performed at the FACET test facility at SLAC we observe that an electron ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
We present the first wide-range measurement of the charged-particle pseudorapidity density distribution, for different centralities (the 0–5%, 5–10%, 10–20%, and 20–30% most central events) in Pb–Pb collisions at View the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Aim
To evaluate the patterns of loco-regional recurrences in head and neck cancer patients
Methods
Twenty-six out of 112 patients treated ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Recorded potentials in the extracellular space (ECS) of the brain is a standard measure of population activity in neural tissue. Computational models that simulate the relationship between the ECS potential and its underlying ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
This paper addresses the long-term climatology (over two solar cycles) of total electron content (TEC) irregularities from a polar cap station (Thule) using the rate of change of the TEC index (ROTI). The climatology reveals ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Hydrothermally grown n-type ZnO bulk samples have been implanted with protons and deuterium ions to fluences in the range of 8 × 1010 to 8 × 1011 cm−2. The implantations were performed at the temperature of 285 K, and the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
A key milestone for the next generation of high-performance multifunctional microelectronic devices is the monolithic integration of high-mobility materials with Si technology. The use of Ge instead of Si as a basic material ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The nuclear level densities and γ-ray strength functions of 138,139,140La were measured using the 139La(3He,α), 139La(3He,'3He), and 139La(d,p) reactions. The particle-γ coincidences were recorded with the silicon particle ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
Positron annihilation spectroscopy, Fourier transform-infrared absorption spectroscopy, and secondary ion mass spectrometry have been used to study the behavior of gallium vacancy-related defects and hydrogen in deuterium ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
The change in contact angles due to the injection of low salinity water or any other wettability altering agent in an oil-rich porous medium is modeled by a network of disordered pores transporting two immiscible fluids. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Aligned finger structures, with a characteristic width, emerge during the slow drainage of a liquid-granular mixture in a tilted Hele-Shaw cell. A transition from vertical to horizontal alignment of the finger structures ...