Now showing items 127-146 of 1674

    • Changing patterns of microhabitat utilization by the threespot damselfish, stegastes planifrons, on caribbean reefs 

      Precht, William F.; Aronson, Richard B.; Moody, Ryan M.; Kaufman, Les S. (2010-05-26)
      The threespot damselfish, Stegastes planifrons (Cuvier), is important in mediating interactions among corals, algae, and herbivores on Caribbean coral reefs. The preferred microhabitat of S. planifrons is thickets of the ...
    • "Chaotic" dart leaders in triggered lightning: Electric fields, X-rays, and source locations 

      Hill, Jonathan D.; Uman, Martin A.; Jordan, Douglas M.; Dwyer, Joseph R.; Rassoul, Hamid K. (2012)
      We present the first published observations of "chaotic" dart leaders in triggered-lightning discharges. We examine four leaders that exhibited "chaotic" electric field derivative (dE/dt) signatures in their final 10 to ...
    • Characteristics of >= 290 keV magnetosheath ions 

      Anagnostopoulos, Georgios C.; Karanikola, I.; Rigas, A. (1999)
      We performed a statistical analysis of 290-500 keV ion data obtained by IMP-8 during the years 1982-1988 within the earth's magnetosheath and analysed in detail some time periods withdistinct ion bursts. These studies ...
    • Characteristics of flux-time profiles, temporal evolution, and spatial distribution of radiation-belt electron precipitation bursts in the upper ionosphere before great and giant earthquakes 

      Anagnostopoulos, Georgios C.; Vassiliadis, Efthymios; Pulinets, Sergey (2012)
      The analysis of energetic electron observations made by the DEMETER satellite reveals that radiation belt electron precipitation (RBEP) bursts are observed in general several (~1-6 days) before a large (M > 6.5) earthquake ...
    • Characterization of transmission lines at IR 

      Mandviwala, Tasneem A.; López-Alonso, José Manuel; Lail, Brian A.; Boreman, Glenn D. (2006-05-12)
      We demonstrate the first long wave infrared (LWIR) transmission line design and characterization. Two of the widely used transmission-lines: coplanar striplines (CPS) and microstrip (MS) lines are characterized at IR ...
    • Characterizing the source properties of terrestrial gamma ray flashes 

      Dwyer, Joseph R.; Liu, Ningyu; Eric Grove, J.; Rassoul, Hamid K.; Smith, David M. (2017-08)
      Monte Carlo simulations are used to determine source properties of terrestrial gamma ray flashes (TGFs) as a function of atmospheric column depth and beaming geometry. The total mass per unit area traversed by all the ...
    • Charged hadron multiplicity fluctuations in Au+Au and Cu+Cu collisions from √sNN=22.5 to 200 GeV 

      Adare, Andrew Marshall; Adler, Steven S.; Afanasiev, Sergey V.; Aidala, Christine A.; Ajitanand, N. N.; Baksay, Gyöngyi; Baksay, László A.; Dehmelt, Klaus; Hohlmann, Marcus; Rembeczki, S. (2008-10-07)
      A comprehensive survey of event-by-event fluctuations of charged hadron multiplicity in relativistic heavy ions is presented. The survey covers Au+Au collisions at √sNN=62.4 and 200 GeV, and Cu+Cu collisions at √sNN=22.5,62.4, ...
    • Charged particle multiplicities in pp interactions at √s = 0.9, 2.36, and 7 TeV 

      Khachatryan, S.; Sirunyan, A.M.; Tumasyan, A.R.; Baarmand, Marc M.; Dorney, B.; Guragain, Samir; Hohlmann, Marcus; Kalakhety, Himali; Ralich, Robert M.; Vodopiyanov, Igor (2011-01-19)
      Measurements of primary charged hadron multiplicity distributions are presented for non-single-diffractive events in proton-proton collisions at centre-of-mass energies of √s = 0.9, 2.36, and 7 TeV, in five pseudorapidity ...
    • Charged particle transverse momentum spectra in pp collisions at √s = 0:9 and 7 TeV 

      Chatrchyan, S.; Khachatryan, Vardan; Sirunyan, A.M.; Baarmand, Marc M.; Dorney, B.; Guragain, Samir; Hohlmann, Marcus; Kalakhety, Himali; Ralich, Robert M.; Vodopiyanov, Igor (2011-08-19)
      The charged particle transverse momentum (pT) spectra are presented for pp collisions at √s = 0.9 and 7 TeV. The data samples were collected with the CMS detector at the LHC and correspond to integrated luminosities of ...
    • Charged-particle nuclear modification factors in PbPb and pPb collisions at √sNN=5.02 TeV 

      The CMS collaboration; Sirunyan, A.M.; Khachatryan, V.; Baarmand, M.M.; Bhopatkar, Vallary; Hohlmann, Marcus; Colafranceschi, Stefano; Noonan, D.; Roy, Tuhin S.; Yumiceva, Francisco X. (2017-04-07)
      The spectra of charged particles produced within the pseudorapidity window |η| < 1 at sNN=5.02 TeV are measured using 404 μb−1 of PbPb and 27.4 pb−1 of pp data collected by the CMS detector at the LHC in 2015. The spectra ...
    • The chromospheric activity and ages of M dwarf stars in wide binary systems 

      Silvestri, Nicole M.; Hawley, Suzanne L.; Oswalt, T. D. (2005-05)
      We investigate the relationship between age and chromospheric activity for 139 M dwarf stars in wide binary systems with white dwarf companions. The age of each system is determined from the cooling age of its white dwarf ...
    • The chromospheric activity, age, metallicity, and space motions of 36 wide binaries 

      Zhao, Jingkun; Oswalt, Terry D.; Rudkin, Mark J.; Zhao, Gang; Chen, Yuqin (2011-02-14)
      We present the chromospheric activity (CA) levels, metallicities, and full space motions for 41 F, G, K, and M dwarf stars in 36 wide binary systems. Thirty-one of the binaries contain a white dwarf (WD) component. In such ...
    • Circadian rhythms of retinomotor movement in a marine megapredator, the atlantic tarpon, Megalops atlanticus 

      Kopperud, Kristin L.; Grace, Michael S. (2017-10)
      Many ecologically and economically important marine fish species worldwide spend portions of their lives in coastal regions that are increasingly inundated by artificial light at night. However, while extensive research ...
    • Circular optimal trade-off and distance-classifier correlation filters 

      Kozaitis, S.P.; Thangwaritorn, Sila (2000-05-01)
      We use circular versions of advanced distortion-invariant filters such as optimal trade-off synthetic discriminant function and distance classifier correlation filters to obtain rotation invariance with an optical correlator. ...
    • Circular polarized leaky wave surface 

      Manene, Franklin M.; Lail, Brian A.; Kinzel, Edward C. (2014-08-18)
      A circular polarized (CP) infrared (IR) leaky wave surface design is presented. The metasurface consists of an array of rectangular patches connected by microstrip and operating over the long-wave infrared (LWIR) spectrum ...
    • A classical morphological analysis of galaxies in the Spitzer Survey of Stellar Structure in Galaxies (S4G) 

      Mizusawa, Trisha Fumiko; Buta, R.J; Athanassoula, E.; Bosma, A.; Knapen, J.H.; Laurikainen, E.; Salo, H.; Elmegreen, D.; Ho, L.C; Zaritsky, D. (2015-04-01)
      The Spitzer Survey of Stellar Structure in Galaxies (S4G) is the largest available database of deep, homogeneous middle-infrared (mid-IR) images of galaxies of all types. The survey, which includes 2352 nearby galaxies, ...
    • Classification of infrasound events using hermite polynomial preprocessing and radial basis function neural networks 

      Lowrie, Christopher G.; Ham, Fredric M. (2006-04-17)
      A method of infrasonic signal classification using hermite polynomials for signal preprocessing is presented. Infrasound is a low frequency acoustic phenomenon typically in the frequency range 0.01 Hz to 10 Hz. Data collected ...
    • Climate change and the threat of novel marine predators in Antarctica 

      Smith, Kathryn E.; Aronson, Richard B.; Steffel, Brittan V.; Amsler, Margaret O.; Thatje, Sven; Singh, Hanumant Pratap; Anderson, Jeffrey S.; Brothers, Cecilia J.; Brown, Alastair; Ellis, Daniel S. (2017-11)
      Historically low temperatures have severely limited skeleton-breaking predation on the Antarctic shelf, facilitating the evolution of a benthic fauna poorly defended against durophagy. Now, rapid warming of the Southern ...
    • Climate Change and Trophic Response of the Antarctic Bottom Fauna 

      Aronson, Richard B.; Moody, Ryan M.; Ivany, Linda C.; Blake, Daniel B.; Werner, John E.; Glass, Alexander (2009-02-05)
      Background As Earth warms, temperate and subpolar marine species will increasingly shift their geographic ranges poleward. The endemic shelf fauna of Antarctica is especially vulnerable to climate-mediated biological ...
    • Climate-change refugia in the sheltered bays of Palau: Analogs of future reefs 

      Van Woesik, Robert; Houk, Peter C.; Isechal, Adelle Lukes; Idechong, Jacques Wasai; Victor, Steven; Golbuu, Yimnang (2012-08-31)
      Coral bleaching and mortality are predicted to increase as climate changeinduced thermal-stress events become more frequent. Although many studies document coral bleaching and mortality patterns, few studies have examined ...