Results 11 to 20 of about 2,098,146 (304)
Ultrasonic Reflection for Measurement of Oil Film Thickness and Contact between Dissimilar Materials [PDF]
, 2012 The contact between dissimilar materials occurs in many machine elements where one of the contacting parts is manufactured from low modulus materials such as lip seals, o-rings, and metal on polymer prosthetic hip joints.
Gasni, Dedison
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Robust state controller via reflection coefficient assignment; pp. 38–47 [PDF]
Proceedings of the Estonian Academy of Sciences, 2011 A solution to the robust pole assignment problem via reflection coefficients of polynomials is provided for discrete-time single-input single-output (SISO) and multi-input multi-output (MIMO) linear systems. For SISO systems a robust state controller and
Ülo Nurges
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Microwave Radar Sensing of Sea Waves: An Effective Reflection Coefficient
Russian Journal of Earth Sciences, 2023 At the small incidence angles, the dominant backscattering mechanism for sea waves is the quasi-specular backscattering mechanism. The power of the reflected signal depends on the distribution function of the slopes of large-scale waves (in comparison ...
Karaev Vladimir +6 more
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Artery Research, 2020 Introduction The concept of re-reflections of blood pressure waves at the heart has been neglected in most models and is only poorly understood so far.
Bernhard Hametner +2 more
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Theoretical and Experimental Studies of Acoustic Reflection of Bubbly Liquid in Multilayer Media
Applied Sciences, 2022 Bubbly liquids are widely present in the natural environment and industrial fields, such as seawater near the ocean bottom, the multiphase flow in petroleum reservoirs, and the blood with bubbles resulting in decompression sickness.
Yu Wang +3 more
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Наукові вісті Національного технічного університету України "Київський політехнічний інститут", 2017 Background. This work is devoted to theoretical study of the behavior of spin waves passing through multilayer ferromagnetic with complex interfaces. Objective.
Serhii O. Reshetniak +1 more
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Wave reflection in semiconductor nanostructures
Theoretical and Applied Mechanics Letters, 2018 : Based on nonlocal thermoelastic theory, this article studies the reflection of waves in nanometer semi-conductor media. Firstly, the governing equations are established based on coupled nonlocal elasticity theory, plasma diffusion equation, and moving ...
Feixiang Tang, Yaqin Song
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Broadband Matching via Reflection Coefficient Modeling
Electrica, 2016 In this paper, a practical method is presented to design broadband matching networks via reflection coefficient modeling. In the proposed algorithm, reflection function values () at sample frequencies are optimized to get the desired gain level.
Metin ŞENGÜL
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Reflection coefficient of a dominant mode in a pentafurcated duct
Boundary Value Problems, 2017 This paper presents the diffraction of acoustic plane wave through a semi-infinite soft duct. The soft plates are enclosed symmetrically inside an infinite duct with hard boundary conditions.
Mahmood-ul-Hassan, Mahvish Naz
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Optimal design for the artificial‐noise‐aided IRS‐MIMO‐OFDM secure communications
IET Communications, 2022 This paper discusses an artificial noise‐aided intelligent reflecting surface‐MIMO–OFDM system physical layer secure communication, in which two cases for the intelligent reflecting surface reflection coefficient models are considered separately, that is
Jingya Ren +4 more
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