Browsing Department of Physics and Technology by Title
Now showing items 862-881 of 2331
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Investigation of nanofluids in alkaline electrolytes: Stability, electrical properties, and hydrogen production
(Journal article; Peer reviewed, 2023)Utilizing solar energy efficiently and manufacturing hydrogen economically are the primary goals in the energy industry. In this paper, we present a novel method to solve both issues by exploiting the electrolysis of ... -
Investigation of nonlinear effects in piezoelectric discs and radiated sound field
(Master thesis, 2023-06-01) -
Investigation of Particle Trajectories and Flow Patterns in a Hydrocyclone by Positron Emission Particle Tracking (PEPT)
(Master thesis, 2012-05-31)Cyclone separators are widely used for separation of solids or droplets from gaseous or liquid fluids in several industries. Cyclones can be used for many purposes and each cyclone can be fitted to its area of use. In the ... -
Investigation of the Effect of Transient and Temporal Variations on Magnetic Reconnection : Using Kinetic PIC Simulations
(Doctoral thesis, 2023-05-05)Vårt univers består for det meste av forskjellige plasmamiljø. Disse er gjennomsyret av elektromagnetiske felt som er generert av plasmapartiklenes bevegelser. Fordi plasmapartiklene er frie partikler vil dynamikken deres ... -
Investigation of the possibilities for seabottom characterization using echosounder data
(Master thesis, 2009-11-18)This thesis focuses mainly on using the information present in the first echo returned from the seafloor, using a normal-incidence echosounder, to characterize or classify the seabed. This is done using a monostatic setup ... -
Investigation of the p–Σ0 interaction via femtoscopy in pp collisions
(Journal article; Peer reviewed, 2020-06-10)This Letter presents the first direct investigation of the p–Σ0 interaction, using the femtoscopy technique in high-multiplicity pp collisions at √s = 13 TeV measured by the ALICE detector. The Σ0 is reconstructed via the ... -
Investigations of anisotropic collectivity using multi-particle correlations in pp, p-Pb and Pb-Pb collisions
(Peer reviewed; Journal article, 2017-11)Two- and multi-particle azimuthal correlations have proven to be an excellent tool to probe the properties of the strongly interacting matter created in heavy-ion collisions. Recently, the results obtained for multi-particle ... -
Investigations of anisotropic flow using multiparticle azimuthal correlations in pp, p−Pb, Xe-Xe, and Pb-Pb collisions at the LHC
(Peer reviewed; Journal article, 2019)Measurements of anisotropic flow coefficients ( v n ) and their cross-correlations using two- and multiparticle cumulant methods are reported in collisions of p p at √ s = 13 TeV , p − Pb at a center-of-mass energy per ... -
In‐Flight Observation of Positron Annihilation by ILDAS
(Peer reviewed; Journal article, 2018-08)We report a 511‐keV photon flux enhancement that was observed inside a thundercloud and is a result of positron annihilation. The observation was made with the In‐flight Lightning Damage Assessment System (ILDAS) on board ... -
Ion Behaviors in the Reconnection Diffusion Region of a Corrugated Magnetotail Current Sheet
(Journal article; Peer reviewed, 2019)The current sheet structure and ion behaviors in a magnetotail reconnection diffusion region are investigated. The multispacecraft analysis suggests a corrugated current sheet structure, interpreted as due to a flapping ... -
Ion Concentration Influences the Charge Transfer Due to a Water−Air Contact Line Moving over a Hydrophobic Surface: Charge Measurements and Theoretical Models
(Journal article; Peer reviewed, 2023)A metal electrode covered by an inert, hydrophobic polymer surface is dipped into water, and the charge transfer was measured as a function of ion concentration for different chlorides, sulfates, and nitrates. A generic ... -
Ionization dynamics beyond the dipole approximation induced by the pulse envelope
(Peer reviewed; Journal article, 2016-05)When atoms and molecules are ionized by laser pulses of finite duration and increasingly high intensities, the validity of the much-used dipole approximation, in which the spatial dependence and magnetic component of the ... -
The ionization dynamics of atoms and molecules exposed to short pulses
(Doctoral thesis, 2013-08-29)The electrons ejected in an ionization event initiated by an incident laser pulse carry detailed information about the structure and the correlation intrinsic to atoms and molecules. This information is essential for our ... -
The Ionospheric Current System and its Temporal Evolution during Rapid Solar Wind Dynamic Pressure Increases
(Doctoral thesis, 2024-03-04)Forskning er en jakt på kunnskap om det ukjente. I denne avhandlingen prøver vi å utvide vår kollektive forståelse av de komplekse samspillene innenfor det dynamiske magnetosfære-ionosfæresystemet. Man kunne fristes til å ... -
IR transmission optimisation for Cadmium Telluride
(Master thesis, 2022-06-01) -
J/\(psi\) elliptic flow in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}\) = 5.02 TeV
(Peer reviewed; Journal article, 2017-12-15)We report a precise measurement of the J/\).psi\) elliptic flow in Pb-Pb collisions at \(\sqrt{s_{\rm NN}} = 5.02\) TeV with the ALICE detector at the LHC. The J/\).psi\) mesons are reconstructed at mid-rapidity \(|y| < ... -
J/\(psi\) Elliptic Flow in Pb-Pb Collisions at \(\sqrt{s_{NN}}\)=2.76 TeV
(Peer reviewed; Journal article, 2013-10)We report on the first measurement of inclusive J/\(\psi\) elliptic flow, \(v_2\), in heavy-ion collisions at the LHC. The measurement is performed with the ALICE detector in Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76 ... -
J/\(psi\) production as a function of charged-particle pseudorapidity density in p-Pb collisions at \(\sqrt{s_{\rm NN}} = 5.02\) TeV
(Peer reviewed; Journal article, 2018-01)We report measurements of the inclusive J/\(\psi\) yield and average transverse momentum as a function of charged-particle pseudorapidity density \({\rm d}N_{\rm ch}/{\rm d}\eta\) in p-Pb collisions at \(\sqrt{s_{\rm NN}}= ... -
J/\(psi\) suppression at forward rapidity in Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76 TeV
(Peer reviewed; Journal article, 2012)The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √sNN = 2.76 TeV down to pt = 0 in the rapidity range 2.5 < y < 4. A suppression of the inclusive J/ψ yield in Pb-Pb is observed with ... -
J/\(psi\) suppression at forward rapidity in Pb–Pb collisions at \(\sqrt{s_{\rm NN}} = 5.02\) TeV
(Peer reviewed; Journal article, 2017-03)The inclusive J/ψ production has been studied in Pb–Pb and pp collisions at the centre-of-mass energy per nucleon pair View the MathML source, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, in ...