Results 61 to 70 of about 89,376 (355)

Defect Analysis of the β– to γ–Ga2O3 Phase Transition

Advanced Functional Materials, EarlyView.
The role of defects at all the relevant stages of the β$\beta$‐ to γ$\gamma$‐Ga2O3 polymorph transition is investigated using a multi method approach. The positron annihilation spectroscopy based results show that the defect density decreases after the transition, and that changes in defect configuration within the γ phase occur with increasing ...
Umutcan Bektas, Maciej O. Liedke, Huan Liu, Fabian Ganss, Maik Butterling, Nico Klingner, René Hübner, Ilja Makkonen, Andreas Wagner, Gregor Hlawacek   +9 more
wiley   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Discussion on Weighted Fractional Fourier Transform and Its Extended Definitions

Fractal and Fractional
The weighted fractional Fourier transform (WFRFT) has always been considered a development of the discrete fractional Fourier transform (FRFT). This paper points out that the WFRFT is a discrete FRFT of eigenvalue decomposition, which will change the ...
Tieyu Zhao, Yingying Chi
doaj   +1 more source

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

Advanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang, Yu Chen, Ezra Sarmiento, Taige Hao, Atsushi Arakaki, Michiko Nemoto, Pablo Zavattieri, David Kisailus   +7 more
wiley   +1 more source

Low complexity precoding codebook design based on DFRST for limited feedback precoded OSTBC systems

EURASIP Journal on Wireless Communications and Networking, 2017
Precoding techniques can be used in multiple input multiple output (MIMO) system to assign resources such as power and information optimally. This paper is concerned with limited feedback in precoded orthogonal space time block code (OSTBC) systems ...
Han Hai, Xue-Qin Jiang, Yongchae Jeong, Moon Ho Lee   +3 more
doaj   +1 more source

Efficient radar detection of weak manoeuvring targets using a coarse‐to‐fine strategy

IET Radar, Sonar & Navigation, 2021
Detection of weak manoeuvring targets has always been an important yet challenging task for radar signal processing. One primary reason is that target variable motions within a coherent processing interval generate energy migrations across multiple ...
Shengheng Liu, Hongchi Zhang, Tao Shan, Yongming Huang   +3 more
doaj   +1 more source

Fractional Liouville Equation on Lattice Phase-Space

, 2015
In this paper we propose a lattice analog of phase-space fractional Liouville equation. The Liouville equation for phase-space lattice with long-range jumps of power-law types is suggested.
Tarasov, Vasily E.
core   +1 more source

Electron–Matter Interactions During Electron Beam Nanopatterning

Advanced Functional Materials, EarlyView.
This article reviews the electron–matter interactions important to nanopatterning with electron beam lithography (EBL). Electron–matter interactions, including secondary electron generation routes, polymer radiolysis, and electron beam induced charging, are discussed.
Camila Faccini de Lima, Prathiba Thamizhavel, Taylor J. Woehl   +2 more
wiley   +1 more source

Unsteady Flows of a Generalized Fractional Burgers’ Fluid between Two Side Walls Perpendicular to a Plate

Advances in Mathematical Physics, 2015
The unsteady flows of a generalized fractional Burgers’ fluid between two side walls perpendicular to a plate are studied for the case of Rayleigh-Stokes’ first and second problems.
Jianhong Kang, Yingke Liu, Tongqiang Xia
doaj   +1 more source

Coupled oscillators with power-law interaction and their fractional dynamics analogues

, 2006
The one-dimensional chain of coupled oscillators with long-range power-law interaction is considered. The equation of motion in the infrared limit are mapped onto the continuum equation with the Riesz fractional derivative of order $\alpha$, when ...
Alfimov, Alfimov, Barre, Bouchaud, Braun, Braun, Carreras, Dyson, Dyson, Dyson, Erdélyi, Flach, Flach, Frohlich, Gaididei, George M. Zaslavsky, Gorbach, Ishimori, Klafter, Klafter, Lewin, Meerschaert, Meerschaert, Meerschaert, Metzler, Metzler, Miller, Milovanov, Mingaleev, Montroll, Mukamel, Nickolay Korabel, Oldham, Podlubny, Pokrovsky, Saichev, Samko, Shima, Shlesinger, Sokolov, Tarasov, Uchaikin, Vasily E. Tarasov, Weitzner, Zaslavsky, Zaslavsky, Zaslavsky, Zosimov   +47 more
core   +1 more source