Browsing Mathematics, Statistics, and Physics by Title

Now showing items 338-357 of 389

    • Status and latest results from MIPP 

      Meyer, Holger (Elsevier, 2012-12)
      We briefly review the need for high quality hadron production data. The Main Injector Particle Production experiment (MIPP) at Fermilab collected data in 2005/2006 and published final results on forward neutron production ...

    • Steady axisymmetric vortex flows with swirl and shear 

      Elcrat, Alan R.; Fornberg, Bengt; Miller, Kenneth G. (Cambridge University Press, 2008-10-01)
      A general procedure is presented for computing axisymmetric swirling vortices which are steady with respect to an inviscid flow that is either uniform at infinity or includes shear. We consider cases both with and without ...

    • Steady axisymmetric vortex flows with swirl and shear 

      Elcrat, Alan R.; Fornberg, Bengt; Miller, Kenneth G. (Cambridge University Press, 2008-10)
      A general procedure is presented for computing axisymmetric swirling vortices which are steady with respect to an inviscid flow that is either uniform at infinity or includes shear. We consider cases both with and without ...

    • Stellar modeling with low-temperature on-the-fly opacity 

      Buchele, Lynn (Wichita State University, 2021-05)
      Accurate stellar modeling requires using our understanding of phenomena far smaller than humans can observe to study some of the largest objects in the universe. One quantity that bridges this gap is the mean opacity, ...

    • Stellar models of multiple populations in globular clusters - I. The main sequence of NGC 6752 

      Dotter, Aaron; Ferguson, Jason W.; Conroy, Charlie; Milone, A. P.; Marino, A. F.; Yong, David (Oxford University Press, 2015-01-11)
      We present stellar atmosphere and evolution models of main-sequence stars in two stellar populations of the Galactic globular cluster NGC 6752. These populations represent the two extremes of light-element abundance ...

    • Stochastic monotonicity of a distribution family associated with matrix projections and its applications 

      Wang, Yufei (Wichita State University, 2019-12)
      This dissertation defines a distribution family based on the distribution of a random variable associated with the projections of a normally distributed random matrix with un- known mean onto a linear space and onto a ...

    • Stochastic representations of isotropic vector random fields on spheres 

      Ma, Chunsheng (Taylor & Francis Group, 2016)
      A stochastic representation is derived for a vector random field that is stationary, isotropic, and mean square continuous on a sphere or unit circle. The established stochastic representation is an infinite series involving ...

    • Stress testing the vector-boson-fusion approximation in multijet final states 

      Campanario, Francisco; Figy, Terrance M.; Plaetzer, Simon; Rauch, Michael; Schichtel, Peter; Sjodahl, Malin (American Physical Society, 2018-08-22)
      We consider electroweak Higgs plus three jets production at NLO QCD beyond strict VBF acceptance cuts. We investigate, for the first time, how accurate the VBF approximation is in these regions and within perturbative ...

    • Strict Whitney arcs and t-quasi self-similar arcs 

      Wei, Xin (Wichita State University, 2018-05)
      A connected compact subset E of RN is said to be a strict Whitney set if there exists a real-valued C1 function f on RN with ∇f |E ≡ 0 such that f is constant on no non-empty relatively open subsets of E. We prove that ...

    • Structural analysis and cations distribution of nanocrystalline Ni1-xZnxFe1.7Ga0.3O4 

      Heiba, Zein K.; Mohamed, Mohamed Bakr; Hamdeh, Hussein H.; Ahmed, M. A. (Elsevier B.V., 2014-09-09)
      Nanostructured Ni1-xZnxFe1.7Ga0.3O4, with x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 were prepared by citrate method and were investigated using X-ray diffraction and Mossbauer spectroscopy. The structure characterized using X-ray ...

    • Student's t vector random fields with power-law and log-law decaying direct and cross covariances. 

      Ma, Chunsheng (Taylor & Francis, Inc, 2013-01-01)
      This article deals with the Student's t vector random field, which is formulated as a scale mixture of Gaussian vector random fields, and whose finite-dimensional distributions decay in power-law and have heavy tails. There ...

    • Study of Morin transition in hematite (a- Fe₂O₃) nanoparticles by Mössbauer spectroscopy 

      Halder, Sajib (Wichita State University, 2020-07)
      The change in magnetic properties of hematite (a- Fe₂O₃) nanoparticles were investigated by observing the change of Morin transition fraction at different temperatures. X-ray diffraction, transimission electron microscope ...

    • A study of particular coordinate systems 

      Ragan, Jennifer D. (Wichita State University, 2011-05)
      This thesis is a study of the properties and relationships between isothermal, harmonic and characteristic coordinate systems. The proof of the existence of isothermal and characteristic coordinates on a manifold which ...

    • Superconductivity and structural variation of the electron-correlated layer systems Sr(Pd1-xTx)(2)Ge-2 (T = Co, Ni, Rh; 0 <= x <= 1) 

      Wang, J.W.; Chen, I.A.; Hung, T.L.; You, Y.B.; Ku, H.C.; Hsu, Y.Y.; Ho, J. C.; Chen, Y.Y. (American Physical Society, 2012-01-31)
      Superconductivity variations deduced from the x-ray diffraction and the magnetic and heat-capacity measurements in the pseudoternary Sr(Pd1-xTx)(2)Ge-2 layer system [Pd(4d(8)), T = Co(3d(7)), Ni(3d(8)), or Rh(4d(7)); 0 <= ...

    • Superconvergence of discontinuous Galerkin method for linear hyperbolic equations 

      Rahmati, Sirvan (Wichita State University, 2020-12)
      This thesis is concerned with the investigation of the superconvergence of the Discontinuous Method for linear conservation laws. We use Fourier analysis to study the superconvergence of the semi-discrete discontinuous ...

    • Supernova neutrino burst detection with the deep underground neutrino experiment 

      Abi, B.; Acciarri, R.; Acero, Mario A.; Adamov, G.; Adams, Dean J.; Meyer, Holger; Muether, Mathew; Muetherer, M.; Solomey, Nickolas (Springer Nature, 2021-05-15)
      The Deep Underground Neutrino Experiment (DUNE), a 40-kton underground liquid argon time projection chamber experiment, will be sensitive to the electron-neutrino flavor component of the burst of neutrinos expected from ...

    • Supernova neutrino detection in NOvA 

      Meyer, Holger; Muether, Mathew; Solomey, Nickolas (IOP Publishing Ltd, 2020-10-05)
      The NOvA long-baseline neutrino experiment uses a pair of large, segmented, liquid-scintillator calorimeters to study neutrino oscillations, using GeV-scale neutrinos from the Fermilab NuMI beam. These detectors are also ...

    • Synthesis of highly ordered 30 nm NiFe2O4 particles by the microwave-combustion method 

      Mahmoud, Mohamed H.; Elshahawy, A. M.; Makhlouf, Salah A.; Hamdeh, Hussein H. (Elsevier B.V., 2014-11)
      NiFe2O4 of 30 nm average size was synthesized by microwave combustion and subsequent solid state reaction at 1273 K. The materials were characterized by X-ray diffraction, TEM, vibrating sample magnetometery and Mossbauer ...

    • Testing holomorphy on curves 

      Fridman, Buma L.; Ma, Daowei (Springer, 2012-11)
      For a domain D aS, a"e (n) we construct a continuous foliation of D into one-real-dimensional curves such that any function f a C (1)(D) which can be extended holomorphically into some neighborhood of each curve in the ...

    • Testing homogeneity of a parameter matrix some of the rows of which are under synchronized order restrictions 

      Banerjee, Arijit (Wichita State University, 2011-12)
      This research considers a multiple multivariate linear regression model with a parameter matrix some of the rows of which are constrained by synchronized order restrictions. The test on the homogeneity of the parameter ...