Visualizing Metal Nanoparticle Electrochemical Dissolution Atom by Atom
Small, Volume 22, Issue 34, 17 June 2026.The early stages of the electrochemical dissolution of gold nanoparticles (NPs) on electron beam transparent carbon‐based supports are investigated using identical location scanning transmission electron microscopy at atom resolution. Numbers of atoms lost (and gained), along with morphology changes are tracked for the same NP within an ensemble, over ...
Pei Zhao +3 more
wiley +1 more source
Distribution of the delay time and the dwell time for wave reflection from a long random potential [PDF]
, 2001 Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)We re-examine and correct an earlier derivation of the distribution of the Wigner phase delay time for wave reflection from a long one-dimensional ...
Ramakrishna, S. Anantha +4 more
core +1 more source
Theory and applications of generalized marginals of time-frequency distributions. [PDF]
, 1994 The generalized marginals of a time-frequency distribution are the Radon transform of the distribution. The generalized marginals can be used as a domain for time-frequency analysis along with the ambiguity domain, time-correlation domain, the frequency ...
Krishnamachari, Srivathsan
core
Quantum and Fisher information from the Husimi and related distributions [PDF]
, 2006 The two principal/immediate influences-which we seek to interrelate here-upon the undertaking of this study are papers of Zyczkowski and Slomczynski [J. Phys. A 34, 6689 (2001)] and of Petz and Sudar [J. Math. Phys. 37, 2262 (1996)].
Paul B. Slater, Slater, Paul B
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A method for extracting object related information from in-line holograms using Wigner distribution [PDF]
, 1990 Cataloged from PDF version of article.Includes bibliographical refences.In this thesis, a method based on Wigner distribution is developed to find the three-dimensional coordinates of particles directly from their in-line hologram without ...
Özgen, Mehmet Tankut
core
Spectra of phase point operators in odd prime dimensions and the extended Clifford group [PDF]
, 2008 We analyze the role of the extended Clifford group in classifying the spectra of phase point operators within the framework laid out by [ Gibbons et al., Phys. Rev.
Appleby, D. M. +5 more
core +1 more source
Aliasing In The Af-Gdtfd And The Discrete Spectrogram [PDF]
, 1996 It has recently been claimed that many of the discrete timefrequency representations (TFRs), including the alias free generalize time-frequency distributions (AF-GDTFD), contain aliasing components. This paper shows that the class of AF-GDTFD does indeed
Jeffrey C. O'neill +1 more
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QUASIDISTRIBUTIONS and COHERENT STATES FOR FINITE-DIMENSIONAL QUANTUM SYSTEMS [PDF]
, 2011 In recent years, an approach to discrete quantum phase spaces which comprehends all the main quasiprobability distributions known has been developed. It is the research that started with the pioneering work of Galetti and Piza, where the idea of operator
M. A. Marchiolli +3 more
core +1 more source
A revised discrete pseudo-Wigner distribution and its application to nonstationary signal analyses.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1991 Recently, several efforts have been directed towards developing a joint time and frequency representation for signal analysis. For a time-varying signal, whether a deterministic transient or nonstationary random signal, the use of a discrete pseudo-Wigner distribution (WD) is especially suitable.
ISHIMITSU, Shunsuke, KITAGAWA, Hajime
openaire +2 more sources
Phase reconstruction from two Wigner distribution projections [PDF]
, 2001 The reconstruction of a signal - and in particular its phase - from the distributions associated with the instantaneous power of the signal or, more general, its fractional power spectra, is an important problem in signal processing.
Stankovic, L. +5 more
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