Now showing items 223-242 of 1034

    • Direct synthesis of a titania membrane on a centrifugally casted tubular ceramic support 

      Patterson, V.A.; Krieg, H.M.; Kriek, R.J.; Bisset, H. (Elsevier, 2006)
      In-house manufactured tubular ceramic supports prepared by centrifugal casting have a smooth inside surface and are ideal for thin defect-free coatings. The aim of this study was to directly coat a thin defect-free titania ...
    • Disclosure of a putative biosignature for respiratory chain disorders through a metabolomics approach 

      Smuts, Izelle; Van der Westhuizen, Francois H.; Louw, Roan; Mienie, Lodewyk J.; Mason, Shayne; Koekemoer, Gerhard; Reinecke, Carolus J. (Springer Verlag, 2013)
      The diagnosis of respiratory chain deficiencies (RCDs) is complicated and the need for a diagnostic biomarker or biosignature has been widely expressed. In this study, the metabolic profile of a selected group of 29 ...
    • Discovery and follow-up studies of the extended, off-plane, VHE gamma-ray source HESS J1507-622 

      Acero, F.; Aharonian, F.; Anton, G.; Becherini, Y.; Behera, B.; Bernlöhr, K.; Bochow, A.; Boisson, C.; Bolmont, J.; Borrel, V.; Boutelier, T.; Brucker, J.; Brun, F.; Brun, P.; Bühler, R.; Bulik, T.; Busching, Ingo; Charbonnier, A.; Cheesebrough, A.; Chounet, L.M.; Clapson, A.C.; Coignet, G.; Dalton, M.; Daniel, M.K.; Davids, Isak Delberth; De Jager, Ocker Cornelis; De Naurois, M.; De Oña Wilhelmi, E.; Degrange, B.; Deil, C.; Dickinson, H.J.; Djannati-Ataï, A.; Domainko, W.; Drury, .LO'C.; Dubois, F.; Dubus, G.; Dyks, J.; Dyrda, M.; Egberts, K.; Emmanoulopoulos, D.; Espigat, P.; Farnier, C.; Feinstein, F.; Fiasson, A.; Fontaine, G.; Förster, A.; Füßling, M.; Gabici, S.; Gallant, Y.A.; Gérard, L.; Gerbig, D.; Giebels, B.; Glicenstein, J.F.; Glück, B.; Goret, P.; Göring, D.; Hauser, D.; Hauser, M.; Heinz, S.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, J. A.; Hoffmann, A.; Hofmann, W.; Holleran, Mathew; Hoppe, S.; Horns, D.; Jacholkowska, A.; Jahn, C.; Jung, I.; Katarzyński, K.; Katz, U.; Kaufmann, S.; Keogh, D.; Kerschhaggl, M.; Khangulyan, D.; Khélifi, B.; Klochkov, D.; Kluźniak, W.; Kneiske, T.; Komin, N.U.; Kosack, K.; Kossakowski, R.; Lamanna, G.; Lenain, J.-P.; Lohse, T.; Marandon, V.; Marcowith, A.; Martineau-Huynh, O.; Masbou, J.; Maurin, D.; Mccomb, T.J.L.; Medina, M.C.; Méhault, J.; Moderski, R.; Moulin, E.; Naumann-Godo, M.; Nedbal, D.; Nekrassov, D.; Nicholas, B.; Niemiec, J.; Nolan, S. J.; Ohm, S.; Olive, J. F.; Orford, K. J.; Ostrowski, M.; Panter, M.; Paz Arribas, M.; Pedaletti, G.; Pelletier, G.; Petrucci, P.O.; Pita, S.; Pühlhofer, G.; Punch, M.; Quirrenbach, A.; Raubenheimer, Barend Christoffel; Raue, M.; Rayner, S.M.; Reimer, O.; Renaud, M.; Rieger, F.; Ripken, J.; Rob, L.; Rosier-Lees, S.; Rowell, G.; Rudak, B.; Rulten, C. B.; Ruppel, J.; Sahakian, V.; Santangelo, A.; Schlickeiser, R.; Schöck, F. M.; Schwanke, U.; Schwarzburg, S.; Schwemmer, S.; Shalchi, A.; Sikora, M.; Skilton, J.L.; Sol, H.; Stawarz, L.; Steenkamp, R.; Stegmann, C.; Stinzing, F.; Superina, G.; Szostek, A.; Tam, P.H.; Tavernet, J.P.; Terrier, R.; Tibolla, O.; Tluczykont, M.; Van Eldik, C.; Vasileiadis, G.; Venter, Christo; Venter, L.; Vialle, J.P.; Vincent, P.; Vivier, M.; Völk, H.J.; Volpe, F.; Wagner, S.J.; Ward, M.; Zdziarski, A.A.; Zech, A.; Akhperjanian, A.G; Bazer-bachi, A.R.; Barres de Almeida, U.; Chadwick, P.M.; Chaves, R.C.G. (EDP Sciences, 2011)
      Context. The detection of gamma-rays in the very-high-energy (VHE) range (100 GeV−100 TeV) offers the possibility of studying the parent population of ultrarelativistic particles found in astrophysical sources, so it is ...
    • Discovery of a new Tev gamma-ray source: Ver J0521+211 

      Archambault, S.; Arlen, T.; Aune, T.; Behera, B.; Böttcher, M. (IOP Science, 2013)
      We report the detection of a new TeV gamma-ray source, VER J0521+211, based on observations made with the VERITAS imaging atmospheric Cherenkov Telescope Array. These observations were motivated by the discovery of a cluster ...
    • Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A 

      De Jager, Ocker C; Raubenheimer, Barend; Holleran, Mathew; Büsching, I; Aharonian, F; Venter, C (EDP Sciences, 2008)
    • Discovery of extended VHE Y-ray emission from the vicinity of the young massive stellar cluster Westerlund 1 

      Abramowski, A.; Büsching, Ingo; De Jager, Ocker Cornelis; Sheidaei, F.; Venter, Christo; Vorster, M. (EDP Science, 2012)
      Aims. Results obtained in very-high-energy (VHE; E≥100GeV) γ-ray observations performed with the H.E.S.S. telescope array are used to investigate particle acceleration processes in the vicinity of the young massive stellar ...
    • Discovery of gamma-ray emission from the extragalactic pulsar wind nebula N 157B with H.E.S.S 

      Abramowski, A.; Acero, F.; Aharonian, F.; Akhperjanian, A. G.; Pekeur, Nicolette Whilna; Sheidaei, F.; Tavernet, J. P.; Venter, Christo; Vorster, Michael Johannes; De Jager, Ocker Cornelis (2012)
      We present the significant detection of the first extragalactic pulsar wind nebula (PWN) detected in gamma rays, N 157B, located in the large Magellanic Cloud (LMC). Pulsars with high spin-down luminosity are found to power ...
    • Discovery of Gamma-Ray Emission from the Shell-Type Supernova Remnant RCW 86 with HESS 

      Raubenheimer, Barend; Venter, Christo; Busching, I; Holleran, Mathew; De Jager, Ocker (IOP Publishing Limited, 2009)
    • Discovery of hard-spectrum y-ray emission from the BL Lacertae object 1ES0414+009 

      Abramowski, A.; Büsching, Ingo; De Jager, Ocker Cornelis; Sheidaei, F.; Venter, Christo; Vorster, Michael Johannes (EDP Science, 2012)
      Context. 1ES 0414 + 009 (z = 0.287) is a distant high-frequency-peaked BL Lac object, and has long been considered a likely emitter of very-high-energy (VHE, E > 100 GeV) γ-rays due to its high X-ray and radio flux. Aims. ...
    • Discovery of pulsed y-rays from psr j0034-0534 with the fermi large area telescope: A case for co-located radio and y-ray emission regions 

      Abdo, A A; Ackermann, M; Baldini, L; Bloom, E D; Porter, T A; Claus, R; Venter, Christo; Johannesson, G; Pelassa, V; Smith, D A (Institution of Physics (IOP), 2010)
    • Discovery of pulsed γ-rays from PSR J0034–0534 with the Fermi large area telescope: a case for co-located radio and γ-ray emission regions 

      Abdo, A.A.; Ackermann, M.; Ajello, M.; Allafort, A.; Venter, C. (IOP Publishing, 2010)
      Millisecond pulsars (MSPs) have been firmly established as a class of γ-ray emitters via the detection of pulsations above 0.1 GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using 13 months of LAT data, ...
    • Discovery of TeV y–ray emission from PKS 0447–439 and derivation of an upper limit on its redshift 

      Abramowski, A.; Acero, F.; Vorster, Michael Johannes; Venter, Christo; Kruger, Petrus Paulus (EDP Sciences, 2013)
      Very high-energy γ-ray emission from PKS 0447−439 was detected with the H.E.S.S. Cherenkov telescope array in December 2009. This blazar is one of the brightest extragalactic objects in the Fermi bright source list and has ...
    • Discovery of the hard spectrum VHE γ-ray source HESS J1641-463 

      Abramowski, A.; Böttcher, M.; Davids, I.D.; Ivascenko, A.; Krüger, P.P.; Pekeur, N.W.; Spanier, F.; Sushch, I.; Venter, C.; Vorster, M. (IOP Publishing, 2014)
      This Letter reports the discovery of a remarkably hard spectrum source, HESS J1641–463, by the High Energy Stereoscopic System (H.E.S.S.) in the very high energy (VHE) domain. HESS J1641–463 remained unnoticed by the usual ...
    • Discovery of the source HESS J1356-645 associated with the young and energetic PSR J1357-6429 

      Venter, Christo; Vorster, Michael Johannes; Büsching, Ingo; De Jager, Ocker Cornelis (EDP Sciences, 2011)
      Context. Several newly discovered very-high-energy (VHE; E > 100 GeV) γ-ray sources in the Galaxy are thought to be associated with energetic pulsars. Among them, middle-aged (≳104 yr) systems exhibit large centre-filled ...
    • Discovery of two millisecond pulsars in fermi sources with the nancay radio telescope 

      Venter, Christo (IOP Publishing, 2011)
      We report the discovery of two millisecond pulsars in a search for radio pulsations at the positions of Fermi-Large Area Telescope sources with no previously known counterparts, using the Nan¸cay Radio Telescope. The two ...
    • Discovery of two millisecond pulsars in fermi sources with the nançay radio telescope 

      Cognard, I.; Guillemot, L.; Johnson, T.J.; Smith, D.A.; Venter, C. (IOP Publishing, 2011)
      We report the discovery of two millisecond pulsars in a search for radio pulsations at the positions of Fermi-Large Area Telescope sources with no previously known counterparts, using the Nan¸cay Radio Telescope. The two ...
    • Discovery of very high enegy gamma-ray emission coincident with molecular clouds in the W 28 (G6.4-0.1) field 

      Aharonian, F; Raubenheimer, Barend; Venter, Christo; Holleran, Mathew; Büsching, I; De Jager, Ocker (EDP sciences, 2008)
    • Discovery of very high energy gamma ray emission from the vicinity of PSR J1913+1011 with HESS 

      Aharonian, F; Venter, Christo; Holleran, Mathew; Büsching, I; Raubenheimer, Barend (EDP sciences, 2008)
    • Discovery of Very High Energy y-Ray Emission from Centaurus A with HESS 

      Aharonian, F; Venter, Christo; Busching, I; Holleran, Mathew; De Jager, Ocker; Raubenheimer, Barend (IOP Publishing Limited, 2009)
    • Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301−243 with H.E.S.S. 

      Abramowski, A.; Acero, F.; Vorster, Michael Johannes; Venter, Christo; Kruger, Petrus Paulus (EDP Sciences, 2013)
      The active galactic nucleus PKS 0301−243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV < E < 100 GeV) by Fermi/LAT. This paper reports on the discovery of PKS 0301−243 ...