Now showing items 896-915 of 1516

    • Object matching using the dynamic programming algorithm 

      Koss, Rhoda Baggs (1997-03)
      A new algorithm for matching objects between images is developed and investigated. Affine transformations, i.e. those with translation, rotation, scaling and shearing between images are considered. Steps along the way include ...
    • Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV 

      Baarmand, Marc M.; Dorney, B.; Guragain, Samir; Hohlmann, Marcus; Kalakhety, Himali; Ralich, Robert M.; Vodopiyanov, Igor; Chatrchyan, S. A.; Khachatryan, Vardan; Sirunyan, A. M. (2011-08-12)
      Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV was studied with the Compact Muon Solenoid (CMS) detector at the LHC, using a data sample corresponding to an integrated luminosity ...
    • Observation of a diffractive contribution to dijet production in proton-proton collisions at √s=7 TeV 

      Chatrchyan, S.A; Khachatryan, Vladimir A.; Sirunyan, A.M.; Tumasyan, A.R.; Adam, W.; Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, Himali; Vodopiyanov, Igor (2013-01-08)
      The cross section for dijet production in proton-proton collisions at √s=7 TeV is presented as a function of a variable that approximates the fractional momentum loss of the scattered proton in single-diffractive events. ...
    • Observation of a new boson with mass near 125 GeV in pp collisions at √s = 7 and 8 TeV 

      Chatrchyan, S.; Khachatryan, Vardan; Sirunyan, A.M.; Tumasyan, A.R.; Adam, Wolfgang; Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, Himali; Yumiceva, Francisco (2013-06-20)
      A detailed description is reported of the analysis used by the CMS Collaboration in the search for the standard model Higgs boson in pp collisions at the LHC, which led to the observation of a new boson. The data sample ...
    • Observation of a peaking structure in the J/ψφ mass spectrum from B±→J/ψφK± decays 

      Chatrchyan, S.; Khachatryan, Vardan; Sirunyan, A.M.; Tumasyan, A.; Adam, Wolfgang; Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, Himali; Yumiceva, Francisco (2014-06-22)
      A peaking structure in the J/ψφ mass spectrum near threshold is observed in B± → J/ψφK± decays, produced in pp collisions at √s = 7 TeV collected with the CMS detector at the LHC. The data sample, selected on the basis ...
    • Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC 

      Baarmand, Marc M.; Dorney, B.; Guragain, Samir; Hohlmann, Marcus; Kalakhety, H.; Ralich, Robert M.; Vodopiyanov, Igor; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R. (2010-09)
      esults on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7TeV are presented, using data collected with the CMS detector over a broad ...
    • Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC 

      Khachatryan, Vardan; Sirunyan, A.M.; Tumasyan, A.R.; Baarmand, Marc M.; Dorney, B.; Guragain, Samir; Hohlmann, Marcus; Kalakhety, Himali; Ralich, Robert M.; Vodopiyanov, Igor (2010-09-27)
      Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a ...
    • Observation of the associated production of a single top quark -and a W boson in pp collisions at s =8TeV 

      Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vladimir A.; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (2014-06-09)
      The first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of 12.2fb-1 of proton-proton collisions at ...
    • Observation of Z decays to four leptons with the CMS detector at the LHC 

      Chatrchyan, S.; Khachatryan, Vardan; Sirunyan, A.M.; Tumasyan, A.R.; Adam, Wolfgang; Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, Himali; Vodopiyanov, Igor (2012-12-07)
      The first observation of the Z boson decaying to four leptons in proton-proton collisions is presented. The analyzed data set corresponds to an integrated luminosity of 5.02 fb−1 at √s = 7 TeV collected by the CMS detector ...
    • Observation-constrained modeling of the ionospheric impact of negative sprites 

      Liu, Ningyu; Boggs, Levi D.; Cummer, Steven A. (2016-03-28)
      This paper reports observation and modeling of five negative sprites occurring above two Florida thunderstorms. The sprites were triggered by unusual types of negative cloud-to-ground (CG) lightning discharges with impulse ...
    • Observational constraints on the degenerate mass-radius relation 

      Holberg, Jay B.; Oswalt, Terry D.; Barstow, M. A. (2012-02-09)
      The white dwarf mass-radius relationship is fundamental to modern astrophysics. It is central to routine estimation of DA white dwarf masses derived from spectroscopic temperatures and gravities. It is also the basis for ...
    • OBSERVATIONS of AN ENERGETICALLY ISOLATED QUIET SUN TRANSIENT: EVIDENCE of QUASI-STEADY CORONAL HEATING 

      Orange, Norton Brice; Chesny, David L.; Oluşeyi, Hakeem M. (2015-09-10)
      Increasing evidence for coronal heating contributions from cooler solar atmospheric layers, notably quiet Sun (QS) conditions, challenges standard solar atmospheric descriptions of bright transition region (TR) emission. ...
    • Observations of stepping mechanisms in a rocket-and-wire triggered lightning flash 

      Biagi, Christopher J.; Uman, Martin A.; Jordan, Douglas M.; Rakov, Vladimir A.; Dwyer, Joseph R.; Hill, Jonathan D. (2010-12-14)
      We present 10 high-speed video images that depict the bottom 150 m of a downward-negative, dart-stepped leader in a rocket-and-wire triggered flash, recorded at 240 kiloframes per second (4.17 μs frame integration time), ...
    • Observations of the pulsating white dwarf G 185-32 

      Castanheira, Bárbara Garcia; Kepler, Souza Oliveira; Moskalik, Paweł A.; Zoła, Stanislaw; Pajdosz, G.; Krzensiński, J.; O'Donoghue, Darragh E.; Katz, Marshall E.; Buckley, David A H; Wood, Matt A. (2004-01)
      We observed the pulsating hydrogen atmosphere white dwarf G 185-32 with the Whole Earth Telescope in 1992. We report on a weighted Fourier transform of the data detecting 18 periodicities in its light curve. Using the ...
    • Occurrence of native mangroves and invasive Brazilian Pepper on Recreation vs. Conservation spoil islands 

      Ambrose, Hailey L.
      This study investigated the shoreline distribution of native mangroves and invasive Brazilian Pepper on Recreation and Conservation spoil islands in the Indian River Lagoon (IRL). Based on observations made from earlier ...
    • Omnisphere 

      Ballentine, Chris; Dudamel, Gerardo; Frisbie, James; Taylor, Macdonald
      Our Omnisphere robot is a user-friendly controlled platform with three spheres for wheels. A friction-based drive system rotates each sphere with 360 degrees of full planar freedom. This system eliminates the restrictive ...
    • On a duality principle in processes of servicing machines with double control 

      Dshalalow, Jewgeni H. (1988)
      This paper examines a doubly controlled process of servicing machines. The classical system treated by Takács is equipped with m+1 unreliable machines served by one repairman. In the present modification of this model, the ...
    • On a first passage problem in general queueing systems with multiple vacations 

      Dshalalow, Jewgeni H. (1992)
      The author studies a generalized single-server queueing system with bulk arrivals and batch service, where the server takes vacations each time the queue level falls below r(≥1) in accordance with the multiple vacation ...
    • On a generalized time-varying SEIR epidemic model with mixed point and distributed time-varying delays and combined regular and impulsive vaccination controls 

      Agarwal, Ravi P.; De La Sen, Manuel; Ibeas, Asier; Alonso-Quesada, Santiago (2010-12-14)
      This paper discusses a generalized time-varying SEIR propagation disease model subject to delays which potentially involves mixed regular and impulsive vaccination rules. The model takes also into account the natural ...
    • On a multi-channel queue with state dependent input flow and interruptions 

      Dshalalow, Jewgeni H. (1989)
      This paper deals with a multi-channel queueing system with a finite waiting room but without losses. The latter is achieved by a temporary interruption of the input flow activity until the waiting room is ready to place a ...