Results 71 to 80 of about 8,473 (273)
Advanced Science, EarlyView.We report photostable, photoluminescent deep eutectic solvents (DESs) powered by in situ‐formed zero‐dimensional (0D) halometallates. Stabilized by microenvironment‐controlling hydrogen bond acceptor (HBA) and donor (HBD) networks, these DESs exhibit vibrant, metal ion‐tunable emission (PLQY = 60.2%).
Jeesu Moon +4 more
wiley +1 more source
The multiresolution Fourier transform : a general purpose tool for image analysis [PDF]
The extraction of meaningful features from an image forms an important area of image analysis. It enables the task of understanding visual information to be implemented in a coherent and well defined manner.
Calway, Andrew David
core
A polynomial approach to fast algorithms for discrete Fourier-cosine and Fourier-sine transforms
, 1991 The discrete Fourier-cosine transform ( cos -DFT ) (\cos {\text {-DFT}}) , the discrete Fourier-sine transform ( sin -DFT )
G. Steidl, M. Tasche
core +1 more source
Advanced Science, EarlyView.The CuAg@MSN catalyst developed in this study promotes C─C coupling by regulating the coverage of *CO intermediates through spatial confinement effects, significantly enhancing the selectivity of CO2 electroreduction for C2 product formation. ABSTRACT Tandem catalysts represent a promising paradigm for synergistic electrochemical CO2 reduction (CO2RR ...
Jiaying Zhang +14 more
wiley +1 more source
New fast algorithm for two-dimensional discrete Fourier transform DFT(2 n ; 2)
Electronics Letters, 1989 Two-dimensional fast discrete Fourier transform is computed by means of fast discrete cosine transform. This algorithm permits the transformation with a fewer multiplications and additions, when compared with the usual.
Ma, Weizhen, Yang, Dekun
openaire +1 more source
Universal Oxychlorination Strategy in Halide Solid Electrolytes for All‐Solid‐State Batteries
Advanced Energy Materials, EarlyView.A WO2Cl2‐driven oxychlorination strategy enables bulk oxygen incorporation into close‐packed LixMCl6 (M = Zr, Y, Er, In) halide lattices. Oxygen is selectively anchored by W6+ as lattice‐integrated [WO2Cl4]2− units, regulating the anionic framework, diversifying Li coordination, and weakening Li–Cl interactions.
Jae‐Seung Kim +13 more
wiley +1 more source
, 2011 Conventional wisdom dictates that a Fast Fourier Transform (FFT) will be a more computationally effective method for measuring multiple harmonics than a Discrete Fourier Transform (DFT) approach.
Burt, G. M., Roscoe, A. J.
core
IEEE Photonics Journal, 2017 In this paper, an adaptive inverse fast Fourier transform and fast Fourier transform (IFFT/FFT) size efficient orthogonal frequency division multiplexing (OFDM) modulation scheme with 128/64-quadrature amplitude modulation (QAM) and ...
Qinghui Chen +7 more
doaj +1 more source
Advanced Energy Materials, EarlyView.Organic photoelectrochemical cells based on π‐conjugated semiconductors offer a versatile platform for solar fuel generation. This review outlines operating principles, device architectures, and key metrics, and highlights advances in p‐ and n‐type photoelectrodes, interfacial engineering, and catalyst integration.
Jaehyeong Kim +8 more
wiley +1 more source
Research on Software Optimization for Discrete Fourier Test
AxiomsRandom sequences are critical to cryptographic technologies and applications. Randomness testing typically employs probabilistic statistical techniques for evaluating the randomness properties of such sequences.
Xianwei Yang, Lan Wang
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