Results 41 to 50 of about 11,364,385 (285)
ANALOGY OF THE SECOND ORDER PHASE TRANSITION IN QUASI-OPTICAL MICROWAVE CAVITY RESONATOR [PDF]
Радиофизика и электроника, 2015 In this paper for the first time we have discovered and studied the analogy of the second order phase transition in spheri-cal microwave cavities with heterogeneity in the form of a metal ball. The transition occurs between the state when the ball is sym-
E. M. Ganapolskii
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SAR ground moving target's along-track velocity estimation in the complex image domain via SoWVD
The Journal of Engineering, 2019 A ground moving target is always defocused in the synthetic aperture radar (SAR) image domain due to the along-track velocity. In the image domain, a moving target's complex response along the azimuth direction can be modelled as a linear frequency ...
Zuzhen Huang +3 more
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Spectral analysis of ultrasonic signals backscartted by mortar: Effect of sand size and temperatures
Materials Letters: X, 2022 This paper presents results of application of Ultrasonic Waves UW in civil engineering. The measurement has been performed by ultrasonic reflection technique using a transducer with central frequency 0,5MHz.
Hicham LOTFI +3 more
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Ultramicroscopy, 2017 Recent development in fast pixelated detector technology has allowed a two dimensional diffraction pattern to be recorded at every probe position of a two dimensional raster scan in a scanning transmission electron microscope (STEM), forming an ...
Hao Yang +14 more
semanticscholar +1 more source
Feature Extraction of Gear Fault Signal Based on Sobel Operator and WHT
Shock and Vibration, 2013 Taking Wigner-Ville distribution of gear fault signal as a picture, Sobel operator was applied for edge detection of picture and then Hough transform was used to extract signal feature.
Jian-Hua Cai, Wei-Wen Hu
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Dynamical entropic measure of nonclassicality of phase-dependent family of Schrödinger cat states
Scientific Reports, 2023 The phase-space approach based on the Wigner distribution function is used to study the quantum dynamics of the three families of the Schrödinger cat states identified as the even, odd, and Yurke–Stoler states.
M. Kalka +4 more
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Petroleum Exploration and Development, 2021 In view of the problem of fine characterization of narrow and thin channels, the maximum entropy criterion is used to enhance the focusing characteristics of Wigner-Ville Distribution.
Tianji XU +4 more
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Localization of multidimensional Wigner distributions [PDF]
Journal of Mathematical Physics, 2010 A well known result of P. Flandrin states that a Gaussian uniquely maximizes the integral of the Wigner distribution over every centered disk in the phase plane. While there is no difficulty in generalizing this result to higher-dimensional polydisks, the generalization to balls is less obvious. In this note we provide such a generalization.
Lieb, Elliott H., Ostrover, Yaron
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Wigner Distributions of Quark [PDF]
International Journal of Modern Physics: Conference Series, 2016 Wigner distribution functions are the quantum analogue of the classical phase space distribution and being quantum implies that they are not genuine phase space distribution and thus lack any probabilistic interpretation. Nevertheless, Wigner distributions are still interesting since they can be related to both generalized parton distributions (GPDs ...
Asmita Mukherjee +2 more
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Efficient Screening of Organic Singlet Fission Molecules Using Graph Neural Networks
Advanced Science, EarlyView.A high‐throughput screening framework based on graph neural networks (GNNs) and multi‐level validation facilitates the identification of singlet fission (SF) candidates. By efficiently predicting excitation energies across 20 million molecules, and integrating TDDFT calculations, synthetic accessibility assessments, and GW+BSE calculations, this ...
Li Fu +5 more
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