Recent Submissions

  • Which is better, electrostatic or piezoelectric energy harvesting systems? 

    Elliott, A.D.T.; Miller, L.M.; Halvorsen, Einar; Wright, P.K.; Mitcheson, P.D. (Journal article; Peer reviewed, 2015)
    This paper answers the often asked, and until now inadequately answered, question of which MEMS compatible transducer type achieves the best power density in an energy harvesting system. This question is usually poorly ...
  • Experimental validation of damping model for a MEMS bistable electrostatic energy harvester 

    Nguyen, Cuong Hung; Nguyen, Duy Son; Halvorsen, Einar (Journal article; Peer reviewed, 2014)
    This paper validates lumped models of an asymmetric bistable MEMS electrostatic energy harvester against measurements. A conventional model of constant damping coefficient turns out to be ineffective in predicting or ...
  • Experiments on power optimization for displacement-constrained operation of a vibration energy harvester 

    Truong, Binh Duc; Le, Cuong Phu; Halvorsen, Einar (Journal article; Peer reviewed, 2015)
    This paper presents experiments on how to approach the physical limits on power from vibration energy harvesting under displacement-constrained operation. A MEMS electrostatic vibration energy harvester with voltage-control ...
  • On-chip supercapacitor electrode based on polypyrrole deposited into nanoporous Au scaffold 

    Lu, Pai; Øhlckers, Per; Chen, Xuyuan (Journal article; Peer reviewed, 2016)
    On-chip supercapacitors hold the potential promise for serving as the energy storage units in integrated circuit system, due to their much higher energy density in comparison with conventional dielectric capacitors, high ...
  • Graphene synthesized on porous silicon for active electrode material of supercapacitors 

    Su, Binbin; Chen, Xuyuan; Halvorsen, Einar (Journal article; Peer reviewed, 2016)
    We present graphene synthesized by chemical vapour deposition under atmospheric pressure on both porous nanostructures and flat wafers as electrode scaffolds for supercapacitors. A 3nm thin gold layer was deposited on ...
  • Low power electronic interface for electrostatic energy harvesters 

    Phan, Tra Nguyen; Azadmehr, Mehdi; Le, Cuong Phu; Halvorsen, Einar (Journal article; Peer reviewed, 2015)
    This paper presents design and simulation of a power electronic interface circuit for MEMS electrostatic energy harvesters. The designed circuit is applicable to highly miniaturized electrostatic harvesters with small ...
  • MEMS electrostatic influence machines 

    Le, Cuong Phu; Halvorsen, Einar (Journal article; Peer reviewed, 2016)
    This paper analyses the possibility of MEMS electrostatic influence machines using electromechanical switches like the historical predecessors did two centuries ago. We find that a generator design relying entirely on ...
  • Electric control of power extracting end-stop for MEMS vibration energy harvesting 

    Truong, Binh Duc; Le, Cuong Phu; Halvorsen, Einar (Journal article; Peer reviewed, 2014)
    This experimental work investigates a technique to further improve performance of vibration energy harvesters under displacement-constrained operation. Previously, a device concept based on end-stops acting as additional ...
  • Equivalent-circuit model for slot-effect configuration of an electret-based generator 

    Le, Cuong Phu; Renaud, Michael; Halvorsen, Einar (Journal article; Peer reviewed, 2016)
    This paper presents a completely analytical method to build a lumped-model for an electret-based energy harvester. The harvester consists of two patterned electrodes facing movable electret patterns in a slot-effect ...
  • Azimuthal anisotropy of charged jet production in √sNN=2.76 TeV Pb-Pb collisions 

    Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahn, Sang Un; Akindinov, Alexander; Alam, Sk Noor; Alme, Johan; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, Hui; Zhou, Zhuo; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias Rudolph; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Aleksandrov, Dimitry; Alessandro, Bruno; Alexandre, Didier; Alfaro, Molina; Zhu, Hongsheng; Alici, Andrea; Alkin, Anton; ALICE, Collaboration (Journal article; Peer reviewed, 2016)
    We present measurements of the azimuthal dependence of charged jet production in central and semi-central √sNN=2.76TeVPb–Pb collisions with respect to the second harmonic event plane, quantified as vchjet2. Jet finding is ...
  • First performance results of the ALICE TPC Readout Control Unit 2 

    Zhao, Chengxin; Alme, Johan; Alt, Torsten; Appelshäuser, Harald; Bratrud, Lars Karlot Stubberud; Castro, Andrew; Costa, Filippo; David, Ernö; Gunji, Tako; Kirsch, Stefan; Kiss, Tivadar; Langøy, Rune; Lien, Jørgen André; Lippmann, Christian; Oskarsson, Anders; Rehman, Attiq Ur; Røed, Ketil; Røhrich, Dieter; Sekiguchi, Yoko; Stuart, Meghan; Ullaland, Kjetil; Velure, Arild; Yang, Shiming; Österman, Lennart (Journal article; 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 ...
  • Reliability of High Speed Ultra Low Voltage Differential CMOS Logic 

    Mirmotahari, Omid; Berg, Yngvar (Journal article; Peer reviewed, 2015)
    In this paper, we present a solution to the ultra low voltage inverter by adding a keeper transistor in order to make the semi-floating-gate more stable and to reduce the current dissipation. Moreover, we also present a ...
  • Measurement of electrons from semileptonic heavy-flavor hadron decays in pp collisions at s =2.76TeV 

    Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Agnello, Michelangelo; Agostinelli, Andrea; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Nazeer; Ahmed, Ijaz; Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Yang, Shiming; Zhou, Zhuo; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Ahn, Sang Un; Ahn, Sul-Ah; Aiola, Salvatore; Aimo, Ilaria; Ajaz, Muhammad; ALICE, Collaboration (Journal article, 2015)
  • Measurement of charged jet production cross sections and nuclear modification in p-Pb collisions at sNN=5.02 TeV 

    Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agrawal, Nikita; Ahmed, Ijaz; Ahn, Sang Un; Aimo, Ilaria; Aiola, Salvatore; Ajaz, Muhammad; Akindinov, Alexander; Alme, Johan; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhou, Zhuo; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Alam, Sk Noor; Aleksandrov, Dimitry; Alessandro, Bruno; Alexandre, Didier; Alfaro, Molina; Alici, Andrea; Alkin, Anton; Almaráz, Aviña; Alt, Torsten; ALICE Collaboration (Journal article; Peer reviewed, 2015)
    Charged jet production cross sections in p–Pb collisions at √sNN = 5.02 TeV measured with the ALICE detector at the LHC are presented. Using the anti-kT algorithm, jets have been reconstructed in the central rapidity region ...
  • Rapidity and transverse-momentum dependence of the inclusive J/ψ nuclear modification factor in p-Pb collisions at √sNN = 5.02 TeV 

    ALICE Collaboration; Langøy, Rune; Lien, Jørgen André (Journal article; Peer reviewed, 2015)
    We have studied the transverse-momentum (pT) dependence of the inclusive J/ production in p-Pb collisions at p sNN = 5.02TeV, in three center-of-mass rapidity (ycms) regions, down to zero pT. Results in the forward and ...
  • Elliptic flow of identified hadrons in Pb-Pb collisions at √sNN = 2.76 TeV 

    ALICE Collaboration; Langøy, Rune; Lien, Jørgen André (Journal article; Peer reviewed, 2015)
    The elliptic flow coefficient (v2) of identified particles in Pb-Pb collisions at p sNN = 2.76TeV was measured with the ALICE detector at the Large Hadron Collider (LHC). The results were obtained with the Scalar Product ...
  • Inclusive, prompt and non-prompt J/ψ production at mid-rapidity in Pb-Pb collisions at √sNN = 2.76 TeV 

    ALICE Collaboration; Langøy, Rune; Lien, Jørgen André (Journal article; Peer reviewed, 2015)
    The transverse momentum (pT) dependence of the nuclear modification factor RAA and the centrality dependence of the average transverse momentum hpTi for inclusive J/ have been measured with ALICE for Pb-Pb collisions at ...
  • Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV 

    ALICE Collaboration; Langøy, Rune; Lien, Jørgen André (Journal article; Peer reviewed, 2015)
    The strength of forward-backward (FB) multiplicity correlations is measured by the ALICE detector in proton-proton (pp) collisions at p s = 0.9, 2.76 and 7TeV. The measurement is performed in the central pseudorapidity ...
  • Inclusive photon production at forward rapidities in proton–proton collisions at √s = 0.9, 2.76 and 7 TeV 

    Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agostinelli, Andrea; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Nazeer; Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Yang, Shiming; Zhou, Zhuo; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias Rudolph; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Ahmed, Ijaz; Ahn, Sang Un; Ahn, Sul-Ah; Aimo, Ilaria; Aiola, Salvatore; ALICE, Collaboration (Journal article, 2015)
    The multiplicity and pseudorapidity distributions of inclusive photons have been measured at forward rapidities (2.3 n 3.9) in proton–proton collisions at three center-of-mass energies, √s=0.9, 2.76 and 7 TeV ...
  • Measurement of pion, kaon and proton production in proton–proton collisions at √s = 7 TeV 

    Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmed, Ijaz; Ahn, Sang Un; Aimo, Ilaria; Alme, Johan; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, H.; Zhu, H.; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Aiola, Salvatore; Ajaz, Muhammad; Akindinov, Alexander; Alam, Sk Noor; Aleksandrov, Dimitry; Alessandro, Bruno; Alexandre, Didier; Alfaro, Molina; ALICE, Collaboration (Journal article, 2015)
    The multiplicity and pseudorapidity distributions of inclusive photons have been measured at forward rapidities (2.3 < n < The measurement of primary π±,K±,p and p production at mid-rapidity (y|<0.5) in proton–proton ...

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