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238152 results in Physics and Astronomy

Page 442 of 11908

  • 14 - Electronics

  • Claus Grupen, Universität-Gesamthochschule Siegen, Germany, Boris Shwartz, Budker Institute of Nuclear Physics, Novosibirsk, Russia
  • Book:
    Particle Detectors
    Published online:
    13 July 2023
    Print publication:
    27 July 2023, pp 390-435
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  • 4 - The vacuum as a dielectric medium; renormalisation

  • Bo Andersson, Lunds Universitet, Sweden
  • Book:
    The Lund Model
    Published online:
    13 July 2023
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    27 July 2023, pp 57-89
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  • 25 - Dynamical Theory of Observation

  • George Jaroszkiewicz, University of Nottingham
  • Book:
    Quantized Detector Networks
    Published online:
    13 July 2023
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    27 July 2023, pp 322-342
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  • 2 - Relativistic kinematics, electromagnetic fields and the method of virtual quanta

  • Bo Andersson, Lunds Universitet, Sweden
  • Book:
    The Lund Model
    Published online:
    13 July 2023
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    27 July 2023, pp 6-26
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  • 4 - Non-Abelian strings

  • from Part II - Long Journey
  • M. Shifman, University of Minnesota, A. Yung, University of Minnesota
  • Book:
    Supersymmetric Solitons
    Published online:
    13 July 2023
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    27 July 2023, pp 85-141
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  • High-frequency instabilities in supersonic compression-ramp flow

  • H.M. Broadley, R.E. Hewitt, J.S.B. Gajjar
  • Journal:
    Journal of Fluid Mechanics / Volume 968 / 10 August 2023
    Published online by Cambridge University Press:
    27 July 2023, A5
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  • We consider high Reynolds number supersonic flow over a compression ramp in the triple-deck formulation. Previous studies of compression-ramp stability have shown rapid growth of high-frequency disturbances in initial-value computations; however, no physical or numerical origin has yet been identified robustly. By considering linear perturbations to steady compression-ramp solutions, we show that instabilities observed in previous studies do not have a growth rate that is described by the integral eigenrelation of Tutty & Cowley (J. Fluid Mech., vol. 168, 1986, pp. 431–456) for a (long-wave) Rayleigh instability. We solve both the temporal and spatial instability problems in the limit of asymptotically large wavenumber $K$ (or equivalently frequency) and show that the growth rate of the instability remains $o(K)$, being dominated by higher-order terms in the expansion at moderate ramp angles.

  • 16 - States of lowest energy: dynamics

  • from Part II - Quantum theory
  • Herbert Spohn, Technische Universität München
  • Book:
    Dynamics of Charged Particles and their Radiation Field
    Published online:
    13 July 2023
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    27 July 2023, pp 220-246
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  • 15 - D-branes and geometry II

  • Clifford V. Johnson, University of Southern California
  • Book:
    D-Branes
    Published online:
    13 July 2023
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    27 July 2023, pp 345-366
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  • Appendix 8 - Symmetry properties of the Cartesian reaction parameters

  • Elliot Leader, Imperial College London
  • Book:
    Spin in Particle Physics
    Published online:
    13 July 2023
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    27 July 2023, pp 459-462
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  • 10 - Double-Slit Experiments

  • George Jaroszkiewicz, University of Nottingham
  • Book:
    Quantized Detector Networks
    Published online:
    13 July 2023
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    27 July 2023, pp 131-147
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  • Frontmatter

  • W. N. Cottingham, University of Bristol, D. A. Greenwood, University of Bristol
  • Book:
    An Introduction to the Standard Model of Particle Physics
    Published online:
    13 July 2023
    Print publication:
    27 July 2023, pp i-iv
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  • 6 - Parton model to parton theory: simple model theories

  • John Collins, Pennsylvania State University
  • Book:
    Foundations of Perturbative QCD
    Published online:
    13 July 2023
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    27 July 2023, pp 161-212
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  • 4 - Nonperturbative corrections

  • Aneesh V. Manohar, University of California, San Diego, Mark B. Wise, California Institute of Technology
  • Book:
    Heavy Quark Physics
    Published online:
    13 July 2023
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    27 July 2023, pp 102-130
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  • 7 - The production of polarized e±

  • Elliot Leader, Imperial College London
  • Book:
    Spin in Particle Physics
    Published online:
    13 July 2023
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    27 July 2023, pp 165-184
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  • 9 - Corrections to the parton model in QCD

  • John Collins, Pennsylvania State University
  • Book:
    Foundations of Perturbative QCD
    Published online:
    13 July 2023
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    27 July 2023, pp 284-312
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  • Part 3: - 1/N Expansion

  • Yuri Makeenko, Institute of Theoretical and Experimental Physics, Moscow
  • Book:
    Methods of Contemporary Gauge Theory
    Published online:
    13 July 2023
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    27 July 2023, pp 185-186
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  • Impact of surface physisorption on gas scattering dynamics

  • Yichong Chen, Livio Gibelli, Jun Li, Matthew K. Borg
  • Journal:
    Journal of Fluid Mechanics / Volume 968 / 10 August 2023
    Published online by Cambridge University Press:
    27 July 2023, A4
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  • Engineering flow systems operating under low pressures and/or at the micro/nano scale generally include a physically adsorbed gas layer next to the surface. In this paper, we develop a scattering kernel that accounts for the effect of adsorption, arising from van der Waals interactions, on the dynamics of molecules impinging on solid smooth surfaces. In the limit of low bulk density, surface adsorption becomes negligible and the scattering kernel recovers consistently the Cercignani–Lampis model, which best describes molecular collisions with a clean, smooth surface. In the limit of high bulk density, a dense adsorbed molecular layer forms next to the surface and its presence is picked up by the Maxwell model with complete diffuse reflection, which better captures the multiple collisions suffered by molecules. A weight coefficient based on the Langmuir adsorption isotherm is incorporated into the modelling to handle the transition between these two limiting conditions of low and high densities. The proposed model is validated against high-fidelity molecular dynamics simulations that are performed for a variety of gas–surface combinations and adsorbed molecular layers with different densities. It is shown that the proposed model very well captures the scattering patterns of beams of gas molecules at different velocities impinging on surfaces, as well as momentum and energy accommodation coefficients in the entire range of explored conditions.

  • Frontmatter

  • John Collins, Pennsylvania State University
  • Book:
    Foundations of Perturbative QCD
    Published online:
    13 July 2023
    Print publication:
    27 July 2023, pp i-iv
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  • 18 - D-branes, gravity and gauge theory

  • Clifford V. Johnson, University of Southern California
  • Book:
    D-Branes
    Published online:
    13 July 2023
    Print publication:
    27 July 2023, pp 440-466
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Page 442 of 11908