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Viser treff 1977-1996 av 2104

    • Testing Fluorescence Lifetime Standards using Two-Photon Excitation and Time-Domain Instrumentation: Rhodamine B, Coumarin 6 and Lucifer Yellow 

      Kristoffersen, Arne Skodvin; Hamre, Børge; Erga, Svein Rune; Frette, Øyvind (Peer reviewed; Journal article, 2014-05-28)
      Having good information about fluorescence lifetime standards is essential for anyone performing lifetime experiments. Using lifetime standards in fluorescence spectroscopy is often regarded as a straightforward process, ...

    • Testing hadronic interaction models using a highly granular silicon-tungsten calorimeter 

      Bilki, Burak; Repond, J; Schlereth, J; Xia, L; Deng, Z; Li, Y; Wang, Y; Yue, Q; Yang, Z; Eigen, Gerald; Mikami, Y; Price, T; Watson, NK; Thomson, MA; Ward, DR; Benchekroun, D; Hoummada, A; Khoulaki, Y; Carloganu, C; Chang, S; Khan, A; Kim, DH; Kong, DJ; Oh, YD; Blazey, GC; Dyshkant, A; Francis, K; Lima, JGR; Salcido, P; Zutshi, V; Boisvert, V; Green, B; Misiejuk, A; Salvatore, F; Kawagoe, K; Miyazaki, Y; Sudo, Y; Suehara, T; Tomita, T; Ueno, H; Yoshioka, T; Apostolakis, J; Folger, G; Ivantchenko, V; Ribon, A; Uzhinskiy, V; Cauwenbergh, S; Tytgat, M; Zaganidis, N; Hostachy, JY; Morin, L; Gadow, K; Göttlicher, P; Gunter, C; Kruger, K; Lutz, B; Reinecke, M; Sefkow, F; Feege, N; Garutti, E; Laurien, S; Lu, S; Marchesini, I; Matysek, M; Ramilli, M; Kaplan, A; Norbeck, E; Northacker, D; Onel, Y; Kim, EJ; Van Doren, B; Wilson, GW; Wing, M; Bobchenko, B; Chadeeva, M; Chistov, R; Danilov, M; Drutskoy, A; Epifantsev, A; Markin, O; Mizuk, R; Novikov, E; Popov, V; Rusinov, V; Tarkovsky, E; Besson, D; Popova, E; Gabriel, M; Kiesling, C; Simon, F; Soldner, C; Szalay, M; Tesar, M; Weuste, L; Amjad, MS; Bonis, J; Callier, S; Conforti Di Lorenzo, S; Cornebise, P; Doublet, Ph; Dulucq, F; Faucci-Giannelli, M; Fleury, J; Frisson, T; Kegl, B; Van Der Kolk, N; Li, H; Martin-Chassard, G; Richard, F; De La Taille, C; Pöschl, R; Raux, L; Rouene, J; Seguin-Moreau, N; Anduze, M; Balagura, V; Becheva, E; Boudry, V; Brient, JC; Cornat, R; Frotin, M; Gastaldi, F; Magniette, F; Matthieu, A; Mora De Freitas, P; Videau, H; Augustin, JE; David, J; Ghislain, P; Lacour, D; Lavergne, L; Zacek, J; Cvach, J; Gallus, P; Havranek, M; Janata, M; Kvasnicka, J; Lednicky, D; Marcisovsky, M; Polak, I; Popule, J; Tomasek, L; Tomasek, M; Ruzicka, P; Sicho, P; Smolik, J; Vrba, V; Zalesak, J; Jeans, D; Götze, M (Peer reviewed; Journal article, 2015-09)

    • Testing the mirror symmetry of Birkeland and ionospheric currents with respect to magnetic latitude, dipole tilt angle, and IMF By 

      Hatch, Spencer Mark; Laundal, Karl Magnus; Reistad, Jone Peter (Journal article; Peer reviewed, 2022)
      It is often assumed that on average, polar ionospheric electrodynamics in the Northern and Southern Hemispheres are mirror symmetric or antisymmetric with respect to the interplanetary magnetic field By component and the ...

    • Testing the presence of CP violation in the 2HDM 

      Grzadkowski, Bohdan; Øgreid, Odd Magne; Osland, Per (Peer reviewed; Journal article, 2015-04-27)
      We review CP properties of the Two-Higgs-Doublet model. In particular, we show that sponta- neous CP violation occurs in the parameter space on the border between regions allowing explicit CP violation and those where there ...

    • Testing the system size dependence of hydrodynamical expansion and thermal particle production with π, K, p, and ϕ in Xe–Xe and Pb–Pb collisions with ALICE 

      Bellini, Francesca; Acharya, Shreyasi; Acosta, Fernando T.; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Neelima; Ahammed, Zubayer; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Zhou, Zhuo; Arsene, Ionut Cristian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Malik, Qasim Waheed; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Helstrup, Håvard; Langøy, Rune; Lien, Jørgen André; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Al-Turany, Mohammad; Alam, Sk Noor; Albuquerque, D. S. D.; Aleksandrov, Dmitry; Alessandro, Bruno; ALICE, Collaboration (Peer reviewed; Journal article, 2019-01-22)
      We present new results on transverse momentum spectra, integrated yields, and mean transverse momenta of pions, kaons, and protons, as well as of ϕ-mesons for various centrality classes measured in Pb–Pb and Xe–Xe collisions ...

    • Theoretical analysis of erosion in elbows due to flows with nano- and micro-size particles 

      Kosinska, Anna Dorota; Balakin, Boris; Kosinski, Pawel Jan (Journal article; Peer reviewed, 2020-02-05)
      The present paper focuses on the issue of erosion due to fluid flow laden with nano- and microparticles. We investigated the case of a pipe elbow using theoretical analysis and numerical simulations. For the case when the ...

    • Theoretical studies of CO2 hydrates formation and dissociation in cold aquifers using RetrasoCodeBright simulator 

      Jemai, Khaled; Kvamme, Bjørn; Vafaei, Mohammad Taghi (Peer reviewed; Journal article, 2014)
      Abstract: - Hydrates of CO2 and water can form during aquifer storage if the reservoir has regions where conditions of pressure and temperature are inside the hydrate forming conditions. A very common assumption is that ...

    • Theoretical studies of Methane Hydrate Dissociation in porous media using RetrasoCodeBright simulator 

      Chejara, Ashok; Kvamme, Bjørn; Vafaei, Mohammad Taghi; Jemai, Khaled (Peer reviewed; Journal article, 2012)
      Methane hydrates in reservoir are generally not in chemical equilibrium, there may be several competing hydrate phase transitions like for instance hydrate dissociation due to pressure or temperature changes, hydrate ...

    • Thermally excited 630.0 nm emissions in the polar ionosphere 

      Kwagala, Norah Kaggwa (Doctoral thesis, 2018-08-24)
      This thesis investigates the importance and significance of thermally excited 630.0 nm emissions in the cusp and polar ionosphere. Thermal excitation by heated ambient electrons in the cusp and polar ionosphere is a rarely ...

    • Thermodynamic and Kinetic Modeling of CH4/CO2 Hydrates Phase transitions 

      Kvamme, B.; Baig, K.; Qasim, M.; Bauman, J. (Peer reviewed; Journal article, 2013)
      Natural gas hydrates in reservoirs are thermodynamically unstable due to exposure to mineral surfaces and possibly undersaturated phases of water and hydrate formers. Changes in global temperatures also alter the stability ...

    • Three-Dimensional Magnetic Reconnection With a Spatially Confined X-Line Extent: Implications for Dipolarizing Flux Bundles and the Dawn-Dusk Asymmetry 

      Liu, Yi-Hsin; Li, TC; Hesse, Michael; Sun, WJ; Liu, J; Burch, J; Slavin, James Arthur; Huang, K. (Peer reviewed; Journal article, 2019)
      Using 3‐D particle‐in‐cell simulations, we study magnetic reconnection with the X‐line being spatially confined in the current direction. We include thick current layers to prevent reconnection at two ends of a thin current ...

    • Tilstandsovervåkning av undervanns motordrift med lange forsyningskabler 

      Stjernberg, Stian (Master thesis, 2010-06-01)
      Hensikten med denne mastergradsoppgaven er å sette opp et testanlegg bestående av forsyningskabel og induksjonsmotor for å teste om tilstandsovervåkning kan utføres ved strømanalyse av lange forsyningskabler. Det skal ...

    • Time domain simulations of preliminary breakdown pulses in natural lightning 

      Carlson, Brant Edward; Liang, Can; Bitzer, Phillip M.; Christian, Hugh J. (Peer reviewed; Journal article, 2015-06)
      Lightning discharge is a complicated process with relevant physical scales spanning many orders of magnitude. In an effort to understand the electrodynamics of lightning and connect physical properties of the channel to ...

    • Time evolution of storms producing terrestrial gamma-ray flashes using era5 reanalysis data, gps, lightning and geo-stationary satellite observations 

      Tiberia, Alessandra; Mascitelli, Alessandra; D’adderio, Leo Pio; Federico, Stefano; Marisaldi, Martino; Porcù, Federico; Realini, Eugenio; Gatti, Andrea; Ursi, Alessandro; Fuschino, Fabio; Tavani, Marco; Dietrich, Stefano (Journal article; Peer reviewed, 2021)
      In this article, we report the first investigation over time of the atmospheric conditions around terrestrial gamma-ray flash (TGF) occurrences, using GPS sensors in combination with geostationary satellite observations ...

    • Time-dependent angular analysis of the decay B0s→J/ψϕ and extraction of ΔΓ s and the CP-violating weak phase ϕ s by ATLAS 

      ATLAS, Collaboration; Aad, Georges; Abajyan, T.; Abbott, Brad; Abdallah, Jalal; Abdel Khalek, Samah; Abdelalim, A. A.; Buanes, Trygve; Burgess, Thomas; Eigen, Gerald; Kastanas, Alex; Liebig, Wolfgang; Lipniacka, Anna; Rosendahl, Peter Lundgaard; Sandaker, Heidi; Sjursen, Therese B.; Stugu, Bjarne; Tonoyan, Arshak; Ugland, Maren (Peer reviewed; Journal article, 2012-12)
      A measurement of B0s→J/ψϕ decay parameters, including the CP -violating weak phase ϕ s and the decay width difference ΔΓ s is reported, using 4.9 fb−1 of integrated luminosity collected in 2011 by the ATLAS detector from ...

    • To Measure the Efficiency of Energy Transfer Systems Under External 

      Joshi, Pramanand (Master thesis, 2014-06-03)
      Transfer of power wirelessly through magnetic resonance is a hot topic these days not only for low power consumer electronics like laptops, cell phones etc. but also for high power applications like electric cars, trains ...

    • Top-quark physics at the CLIC electron-positron linear collider 

      Abramowicz, Halina; Alipour Tehrani, N; Arominski, D; Benhammou, Y; Benoit, M; Blaising, JJ; Boronat, M; Borysov, O; Bosley, RR; Božović Jelisavčić, I; Boyko, I; Brass, S; Brondolin, E; Bruckman de Renstrom, P; Buckland, M; Burrows, PN; Chefdeville, M; Chekanov, S; Coates, T; Dannheim, D; Demarteau, M; Denizli, H; Durieux, G; Eigen, Gerald; Elsener, K; Fullana, E; Fuster, J; Gabriel, M; Gaede, F; Garcia, I; Goldstein, J; Gomis Lopez, P; Graf, C; Green, S; Grefe, C; Grojean, C; Hoang, A; Hynds, D; Joffe, A; Kalinowski, J; Kacarevic, G; Kilian, W; van der Kolk, N; Krawczyk, M; Kucharczyk, M; Leogrande, E; Lesiak, T; Levy, A; Levy, I; Linssen, L; Maier, AA; Makarenko, V; Marshall, JS; Martin, V; Mateu, V; Matsedonskyi, O; Metcalfe, J; Milutinović Dumbelović, G; Munker, RM; Nefedov, Yu; Nowak, K; Nürnberg, A; Pandurović, M; Perelló, M; Perez Codina, E; Petric, M; Pitters, F; Price, T; Quast, T; Redford, S; Repond, J; Robson, A; Roloff, P; Ros, E; Rozwadowska, K; Ruiz-Jimeno, A; Sailer, A; Salvatore, F; Schnoor, U; Schulte, D; Senol, A; Shelkov, G; Sicking, E; Simon, F; Simoniello, R; Sopicki, P; Spannagel, S; Stapnes, Steinar; Ström, R; Szalay, M; Thomson, MA; Turbiarz, B; Viazlo, O; Vicente, M; Vila, I; Vos, M; Vossebeld, J; Watson, MF; Watson, NK; Weber, MA; Weerts, H; Wells, JD; Widl, A; Williams, M; Winter, AG; Wojtoń, T; Wulzer, A; Xu, B; Xia, L; You, T; Żarnecki, AF; Zawiejski, L; Zhang, C; Zhang, J; Zhang, Y; Zhang, Z; Zhemchugov, A (Journal article; Peer reviewed, 2019)
      The Compact Linear Collider (CLIC) is a proposed future high-luminosity linear electron-positron collider operating at three energy stages, with nominal centre-of-mass energies s√ = 380 GeV, 1.5 TeV, and 3 TeV. Its aim is ...

    • Toward a Next Generation Particle Precipitation Model: Mesoscale Prediction Through Machine Learning (a Case Study and Framework for Progress) 

      McGranaghan, Ryan M.; Ziegler, Jack; Bloch, Téo; Hatch, Spencer Mark; Camporeale, Enrico; Lynch, Kristina; Owens, Mathew; Gjerløv, Jesper; Zhang, Binzheng; Skone, Susan (Journal article; Peer reviewed, 2021)
      We advance the modeling capability of electron particle precipitation from the magnetosphere to the ionosphere through a new database and use of machine learning (ML) tools to gain utility from those data. We have compiled, ...

    • Toward the end-to-end optimization of particle physics instruments with differentiable programming 

      Dorigo, Tommaso; Giammanco, Andrea; Vischia, Pietro; Aehle, Max; Bawaj, Mateusz; Boldyrev, Alexey; de Castro Manzano, Pablo; Derkach, Denis; Donini, Julien; Edelen, Auralee; Fanzago, Federica; Gauger, Nicolas R.; Glaser, Christian; Baydin, Atılım G.; Heinrich, Lukas; Keidel, Ralf; Kieseler, Jan; Krause, Claudius; Lagrange, Maxime; Lamparth, Max; Layer, Lukas; Maier, Gernot; Nardi, Federico; Pettersen, Helge Egil Seime; Ramos, Alberto; Ratnikov, Fedor; Röhrich, Dieter; de Austri, Roberto Ruiz; del Árbol, Pablo Martínez Ruiz; Savchenko, Oleg; Simpson, Nathan; Strong, Giles C.; Taliercio, Angela; Tosi, Mia; Ustyuzhanin, Andrey; Zaraket, Haitham (Journal article; Peer reviewed, 2023)
      The full optimization of the design and operation of instruments whose functioning relies on the interaction of radiation with matter is a super-human task, due to the large dimensionality of the space of possible choices ...

    • Towards Neural Charged Particle Tracking in Digital Tracking Calorimeters With Reinforcement Learning 

      Kortus, Tobias; Keidel, Ralf; Gauger, Nicolas R.; Aehle, Max; Alme, Johan; Barnaföldi, Gergely Gábor; Bodova, Tea; Borshchov, Vyacheslav; Vanden Brink, Anthony; Chaar, Mamdouh; Eikeland, Viljar Nilsen; Feofilov, Gregory; Garth, Christoph; Genov, Georgi Yordanov; Grøttvik, Ola Slettevoll; Helstrup, Håvard; Igolkin, Sergey; Kobdaj, Chinorat; Leonhardt, Viktor; Mehendale, Shruti Vineet; Mulawade, Raju Ningappa; Odland, Odd Harald; O'Neill, George; Papp, Gabor; Peitzmann, Thomas; Pettersen, Helge Egil Seime; Piersimoni, Pierluigi; Protsenko, Maksym; Rauch, Max Philip; Rehman, Attiq Ur; Richter, Matthias; Röhrich, Dieter Rudolf Christian; Santana, Joshua; Schilling, Alexander; Seco, Joao; Songmoolnak, Arnon; Sudár, Ákos; Salie, Jarle Rambo; Tambave, Ganesh Jagannath; Tymchuk, Ihor; Ullaland, Kjetil; Varga-Kofarago, Monika; Volz, Lennart; Wagner, Boris; Wendzel, Steffen; Wiebel, Alexander; Xiao, Renzheng; Yang, Shiming; Yokoyama, Hiroki; Zillien, Sebastian (Journal article; Peer reviewed, 2023)
      We propose a novel technique for reconstructing charged particles in digital tracking calorimeters using reinforcement learning aiming to benefit from the rapid progress and success of neural network architectures without ...