Browsing University of Hertfordshire by Title

Now showing items 23335-23354 of 24259

    • Vertical Variation of Optical Properties of Mixed Asian Dust/Pollution Plumes According to Pathway of Airmass Transport over East Asia 

      Shin, Sung Kyun; Muller, Detlef; Lee, K. H.; Shin, D.; Kim, Y. J.; Noh, Y. M. (2016-06-07)
      We use five years (2009-2013) of multiwavelength Raman lidar measurements at Gwangju, Korea (35.10N, 126.53E) for the identification of changes of optical properties of East Asian dust in dependence of its transport path ...

    • Vertical Z 

      Loomes, M.; Britton, C. (University of Hertfordshire, 1991)
      In this paper, lessons learned about decomposition in programming are used as the basis for the organisation of a Z specification. The example used is drawn from an information system which manages security for a large ...

    • Vertically resolved dust optical properties during SAMUM : Tinfou compared to Ouarzazate 

      Heese, Birgit; Althausen, Dietrich; Dinter, Tilman; Esselborn, Michael; Müller, Thomas; Tesche, Matthias; Wiegner, Matthias (2009-02-02)
      Vertical profiles of dust key optical properties are presented from measurements during the Saharan Mineral Dust Experiment (SAMUM) by Raman and depolarization lidar at two ground-based sites and by airborne high spectral ...

    • Vertically resolved light-absorption characteristics and the influence of relative humidity on particle properties : Multiwavelength Raman lidar observations of East Asian aerosol types over Korea 

      Noh, Young M.; Mueller, D.; Mattis, Ina; Lee, Hanlim; Kim, Young J. (2011-03)
      Optical and microphysical particle properties, including the particle single-scattering albedo, were derived from multiwavelength aerosol Raman lidar observations at Gwangju (35.10 degrees N, 126.53 degrees E), and Anmyeon ...

    • Vertically resolved separation of dust and smoke over Cape Verde using multiwavelength Raman and polarization lidars during Saharan Mineral Dust Experiment 2008 

      Tesche, Matthias; Ansmann, A.; Mueller, D.; Althausen, D.; Engelmann, R.; Freudenthaler, V.; Gross, S. (2009-07-08)
      Multiwavelength aerosol Raman lidar in combination with polarization lidar at Praia (14.9 degrees N, 23.5 degrees W), Cape Verde, is used to separate the optical properties of desert dust and biomass burning particles as ...

    • A very cool brown dwarf in UKIDSS DR1 

      Warren, S.J.; Mortlock, D.J.; Leggett, S.K.; Pinfield, D.J.; Homeier, D.; Dye, S.; Jameson, R.F.; Lodieu, N.; Lucas, P.W.; Adamson, A.J.; Allard, F.; Barrado y Navascues, D.; Casali, M.; Chiu, K.; Hambly, N.C.; Hewett, P.C.; Hirst, P.; Irwin, M.J.; Lawrence, A.; Liu, M.C.; Martin, E.L.; Smart, R.L.; Valdivielso, L.; Venemans, B.P. (2007)

    • Very different X-ray to optical column density ratios in gamma-ray burst afterglows: ionisation in GRB environments 

      Watson, D.; Hjorth, J.; Fynbo, J.; Jakobsson, P.; Foley, S.; Sollerman, J.; Wijers, R.A.M.J. (2007)

    • A very energetic supernova associated with the -ray burst of 29 March 2003 

      Hjorth, J.; Sollerman, J.; Moller, P.; Fynbo, J.; Woosley, S.E.; Kouveliotou, C.; Tanvir, N.; Greiner, J.; Andersen, M.I.; Castro-Tirado, A.J.; Castro Ceron, J.M.; Fruchter, A.S.; Gorosabel, J.; Jakobsson, P.; Kaper, L.; Klose, S.; Masetti, N.; Pedersen, H.; Pedersen, K.; Pian, E.; Palazzi, E.; Rhoads, J.E.; Rol, E.; van den Heuvel, E.P.J.; Vreeswijk, P.M.; Watson, D.; Wijers, R.A.M.J. (2003)

    • Very Large Baseline Array observations of Mrk 6 : probing the jet-lobe connection 

      Kharb, P.; O'Dea, C.P.; Baum, S.A.; Hardcastle, M.J.; Dicken, D.; Croston, J. H.; Mingo, B.; Noel-Storr, J. (2014-06-01)
      We present the results of high-resolution VLBI (very long baseline interferometry) observations at 1.6 and 4.9 GHz of the radio-loud Seyfert galaxy, Mrk 6. These observations are able to detect a compact radio core in this ...

    • Very light jets II: Bipolar large scale simulations in King atmospheres 

      Krause, M. (2005-02-02)
      Hydrodynamic jets, underdense with respect to their environment by a factor of up to 104, were computed in axisymmetry as well as in 3D. They finally reached a size of up to 220 jet radii, corresponding to a 100 kpc sized ...

    • Very light jets. I. Axisymmetric parameter study and analytic approximation 

      Krause, M. (2003-01-14)
      The propagation of extragalactic jets is studied by a series of twelve axisymmetric hydrodynamic simulations. Motivated by observational constraints, but unlike most previous simulations, the regime of jet to external ...

    • Very light magnetized jets on large scales - I. Evolution and magnetic fields 

      Gaibler, V.; Krause, M.; Camenzind, M. (2009-12-21)
      Magnetic fields, which are undoubtedly present in extragalactic jets and responsible for the observed synchrotron radiation, can affect the morphology and dynamics of the jets and their interaction with the ambient cluster ...

    • Very low-luminosity Class I/flat outflow sources in sigma Orionis 

      Riaz, Basmah; Thompson, M.A.; Whelan, E.T.; Lodieu, N. (2015-01-21)
      We present an optical to submillimetre multiwavelength study of two very low-luminosity Class I/flat systems, Mayrit 1701117 and Mayrit 1082188, in the σ Orionis cluster. We performed moderate-resolution (R ∼ 1000) optical ...

    • Vesiclepedia : a compendium for extracellular vesicles with continuous community annotation 

      Kalra, Hina; Simpson, Richard J; Ji, Hong; Aikawa, Elena; Altevogt, Peter; Askenase, Philip; Bond, Vincent C; Borràs, Francesc E; Breakefield, Xandra; Budnik, Vivian; Buzas, Edit; Camussi, Giovanni; Clayton, Aled; Cocucci, Emanuele; Falcon-Perez, Juan M; Gabrielsson, Susanne; Gho, Yong Song; Gupta, Dwijendra; Harsha, H C; Hendrix, An; Hill, Andrew F; Inal, Jameel M; Jenster, Guido; Krämer-Albers, Eva-Maria; Lim, Sai Kiang; Llorente, Alicia; Lötvall, Jan; Marcilla, Antonio; Mincheva-Nilsson, Lucia; Nazarenko, Irina; Nieuwland, Rienk; Nolte-'t Hoen, Esther N M; Pandey, Akhilesh; Patel, Tushar; Piper, Melissa G; Pluchino, Stefano; Prasad, T S Keshava; Rajendran, Lawrence; Raposo, Graca; Record, Michel; Reid, Gavin E; Sánchez-Madrid, Francisco; Schiffelers, Raymond M; Siljander, Pia; Stensballe, Allan; Stoorvogel, Willem; Taylor, Douglas; Thery, Clotilde; Valadi, Hadi; van Balkom, Bas W M; Vázquez, Jesús; Vidal, Michel; Wauben, Marca H M; Yáñez-Mó, María; Zoeller, Margot; Mathivanan, Suresh (2012-12-18)
      Extracellular vesicles (EVs) are membraneous vesicles released by a variety of cells into their microenvironment. Recent studies have elucidated the role of EVs in intercellular communication, pathogenesis, drug, vaccine ...

    • Vestibular modulation of multisensory integration during actual and vicarious tactile stimulation 

      Ponzo, Sonia; Kirsch, Louise P; Fotopoulou, Aikaterini; Jenkinson, Paul M (2019-10-01)
      The vestibular system has been shown to contribute to multisensory integration by balancing conflictual sensory information. It remains unclear whether such modulation of exteroceptive (e.g., vision), proprioceptive, and ...

    • Veterinary anthelmintics : old and new 

      McKellar, Quintin; Jackson, F. (2004-10)
      Between 1960 and 1980, extraordinary success was achieved in anthelmintic development for animals. In these 20 years, drugs with diverse structure, novel activity and enviable safety were produced for a global livestock ...

    • Veterinary Substances DataBase (VSDB) 

      Health & Human Sciences Research Institute; School of Life and Medical Sciences; Department of Human and Environmental Sciences; Geography, Environment and Agriculture; Agriculture and Environment Research Unit; Agriculture, Food and Veterinary Sciences; Agriculture; Lewis, Kathleen; Tzilivakis, John; Green, Andrew; Warner, Douglas (2011)

    • Una via italiana al consumismo? 

      Morris, Jonathan (2022-08-01)
      This article engages with the essays contained within the volume on I consumi in the Einaudi Storia d’Italia series a cura di Emanuela Scarpellini e Stefano Cavazza, to consider how far distinctive features of national ...

    • The viability of Weibull analysis of small samples in process manufacturing 

      Abughazaleh, Tareq Ali Ibrahim (University of Hertfordshire, 2002)
      This research deals with some Statistical Quality Control (SQC) methods, which are used in quality testing. It investigates the problem encountered with statistical process control (SPC) tools when small sample sizes are ...

    • Viable Knowledge: The Centrality of Practice 

      Karstadt, L. (2011-03-10)
      This thesis investigates how individual student nurses construct a body of knowledge that is appropriate and able to support or underpin their practical experiences in the early part of their undergraduate pre-registration ...