Now showing items 245-264 of 443

    • Multivariate isotonic regression and its algorithms 

      Hoffmann, Linda; Hu, Xiaomi (Wichita State University. Graduate School, 2009-05-01)
      We use regression functions, which are the means of random variables, to interpret statistical inference. Often an order is imposed on the values of the regression function. Thus, we refer to the regression as an order ...
    • Neutrino detector design, attenuation studies, and testing for the νSol project 

      Folkerts, Jonathan (Wichita State University, 2020-05)
      In order to further work on the Sol project funded through a NASA Phase II NIAC grant, I have performed detailed simulations on the effect of attenuation length on the performance of the Sol solar neutrino probe using ...
    • Neutrino interaction classification with a convolutional neural network in the DUNE far detector 

      Abi, B.; Acciarri, R.; Acero, Mario A.; Muether, Mathew; Meyer, Holger; Solomey, Nickolas (American Physical Society, 2020-11-09)
      The Deep Underground Neutrino Experiment is a next-generation neutrino oscillation experiment that aims to measure CP-violation in the neutrino sector as part of a wider physics program. A deep learning approach based on ...
    • New constraints on oscillation parameters from $ν_e$ appearance and $ν_μ$ disappearance in the NOvA experiment 

      Cedeno, Alan J.; Meyer, Holger; Muether, Mathew; Solomey, Nickolas (American Physical Society, 2018-08-24)
      We present updated results from the NOvA experiment for $\nu_\mu\rightarrow\nu_\mu$ and $\nu_\mu\rightarrow\nu_e$ oscillations from an exposure of $8.85\times10^{20}$ protons on target, which represents an increase of 46% ...
    • A new test for decreasing mean residual lifetimes 

      Lorenzo, Edgardo; Malla, Ganesh B.; Mukerjee, Hari (Taylor & Francis, 2018-03-02)
      The mean residual life of a non negative random variable X with a finite mean is defined by M(t) = E[X - t|X > t] for t 0. One model of aging is the decreasing mean residual life (DMRL): M is decreasing (non increasing) ...
    • A new test for new better than used in expectation lifetimes 

      Lorenzo, Edgardo; Malla, Ganesh B.; Mukerjee, Hari (Taylor & Francis Group, 2015)
      The mean residual life of a non negative random variable X with a finite mean is defined by M(t) = E[X - t | X > t] for t >= 0. A popular nonparametric model of aging is new better than used in expectation (NBUE), when ...
    • Nilsolitons of H-type in the Lorentzian setting 

      Onda, Kensuke (Houston Journal of Mathematics, 2015)
      It is known that all left-invariant pseudo-Riemannian metrics on the three-dimensional Heisenberg group H-3 are algebraic Ricci solitons. We consider generalizations of Riemannian H-type, namely pseudoH-type and pH-type. ...
    • NLO multijet merging for Higgs production 

      Chen, Tinghua (Wichita State University, 2022-04-29)
      The discovery of the Higgs boson in 2012 by ATLAS and CMS Collaborations at the Large Hadron Collider (LHC) opens a new era to particle physics, making processes involving Higgs production interesting and essential in many ...
    • NLO multijet merging for Higgs production beyond the VBF approximation 

      Chen, Tinghua; Figy, Terrance M.; Plätzer, Simon (Springer Nature, 2022-08-13)
      We present results of the simulation of electroweak Higgs boson production at the Large Hadron Collider using both the NLO multijet merging and NLO matching frameworks provided by the general purpose event generator Herwig ...
    • Non-negatively curved 6-manifolds with almost maximal symmetry rank 

      Escher, Christine; Searle, Catherine (Springer Nature, 2019-01)
      We classify closed, simply connected, non-negatively curved 6-manifolds of almost maximal symmetry rank up to equivariant diffeomorphism.
    • Numerical comparison of negative damping bounds in a specified domain when the wave speed varies 

      Najafi, M.; Sarhangi, G.R.; Sawan, M. Edwin (IEEE, 1992-06-24)
      The energy decay of a self-excited wave equation utt - c2 ¿ u - P(x)ut = 0 is studied where the wave speed c is greater than one, P(x) ¿ 0, and P(x) L¿(¿), ¿ ¿ ¿ Rn. Moreover, the relationship between two bounds for ...
    • Numerical computation of a preimage domain for an infinite strip with rectilinear slits 

      Kalmoun, El Mostafa; Nasser, Mohamed M.S.; Vuorinen, Matti (Springer Link, 2023-01-16)
      Let Ω be the multiply connected domain in the extended complex plane $\overline {\mathbb {C}}$obtained by removing m non-overlapping rectilinear segments from the infinite strip $S=\{z : \left |\text {Im} z\right |<\pi ...
    • Numerical computation of Schwarz-Christoffel transformations and slit maps for multiply connected domains 

      Kropf, Everett (Wichita State University, 2012-05)
      Two methods for the numerical conformal mapping of domains with m < ∞ separated circular holes to domains with m polygonal holes are presented; bounded and unbounded domains are both considered. The methods are based on ...
    • Numerical methods for Riemann-Hilbert problems in multiply connected circle domains 

      Balu, Raja; DeLillo, Thomas K. (Elsevier Science Inc., 2016-12-01)
      Riemann-Hilbert problems in multiply connected domains arise in a number of applications, such as the computation of conformal maps. As an example here, we consider a linear problem for computing the conformal map from the ...
    • Numerical methods for Riemann-Hilbert problems in multiply connected circle domains 

      Balu, Raja (Wichita State University, 2020-05)
      Riemann-Hilbert problems are problems for determining functions analytic in a given domain with speci ed values on the boundary. Since the real and imaginary parts of an analytic function are related by the Cauchy-Riemann ...
    • NuSol neutrino detector prototypes: An analysis of the efficiency and backgrounds of the detectors 

      Doty, Brian (Wichita State University, 2021-12)
      The NuSol project aims to orbit a satellite fitted with a gallium-doped scintillator within 10 solar radii of the sun on closest approach. The advantage of the close proximity to the sun is a much higher flux of neutrinos ...
    • Observation of seasonal variation of atmospheric multiple-muon events in the NOvA Near Detector 

      Cedeno, Alan J.; Meyer, Holger; Solomey, Nickolas; Altakarli, Sef (American Physical Society, 2019-06-28)
      Using two years of data from the NOvA Near Detector at Fermilab, we report a seasonal variation of cosmic ray induced multiple-muon $(N\mu\ge2)$ event rates which has an opposite phase to the seasonal variation in the ...
    • Observational constraints on the origin of the elements 

      Magg, Ekaterina; Bergemann, Maria; Serenelli, Aldo; Bautista, Manuel; Plez, Bertrand; Heiter, Ulrike; Gerber, Jeffrey M.; Ludwig, Hans-Günter; Basu, Sarbani; Ferguson, Jason W.; Gallego, Helena Carvajal; Gamrath, Sébastien; Palmeri, Patrick; Quinet, Pascal (EDP Sciences, 2022-05-20)
      Context. The chemical composition of the Sun is required in the context of various studies in astrophysics, among them in the calculation of standard solar models (SSMs) used to describe the evolution of the Sun from the ...
    • On an ad hoc test for order restricted multivariate normal means 

      Hu, Xiaomi (Taylor & Francis Group, 2016)
      For several normal mean vectors restricted by a simple ordering with respect to a multivariate order, this article derives sufficient and necessary conditions for the restricted MLEs for both mean vectors and covariance ...
    • On convergence sets of divergent power series 

      Fridman, Buma L.; Ma, Daowei; Neelon, Tejinder S. (Polish Academy of Sciences Institute of Mathematics, 2012)
      A nonlinear generalization of convergence sets of formal power series, in the sense of Abhyankar-Moh [J. Reine Angew. Math. 241 (1970)], is introduced. Given a family y = phi(s)(t, x) = sb(1)(x)t + b(2)(x)t(2) + ... of ...