Results 71 to 80 of about 184,713 (273)
Steerable Discrete Fourier Transform
, 2017 Directional transforms have recently raised a lot of interest thanks to their numerous applications in signal compression and analysis. In this letter, we introduce a generalization of the discrete Fourier transform, called steerable DFT (SDFT).
Fracastoro, Giulia, Magli, Enrico
core +1 more source
Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors
Advanced Functional Materials, EarlyView.π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato +10 more
wiley +1 more source
A Fuzzy Graph Based Chemometrics Method for Gelatin Authentication
Mathematics, 2020 Graph theory is a well-established concept that is widely used in numerous applications such as in biology, chemistry and network analysis. The advancement in the theory of graph has led to the development of a new concept called fuzzy autocatalytic set.
Nurfarhana Hassan +3 more
doaj +1 more source
Coherent states in quantum gravity: a construction based on the flux representation of LQG
, 2012 As part of a wider study of coherent states in (loop) quantum gravity, we introduce a modification to the standard construction, based on the recently introduced (non-commutative) flux representation.
Oriti, Daniele +2 more
core +1 more source
Fourier could be a data scientist: From graph Fourier transform to signal processing on graphs
Comptes Rendus. Physique, 2019 The legacy of Joseph Fourier in science is vast, especially thanks to the essential tool that the Fourier transform is. The flexibility of this analysis, its computational efficiency and the physical interpretation it offers makes it a cornerstone in many scientific domains.
Ricaud, Benjamin +4 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Herein, an RBC membrane‐derived nanoparticle (CMN‐ICG) is engineered to efficiently deliver a sonosensitizing agent, indocyanine green (ICG), for sonotherapy of hepatocellular carcinoma (HCC). CMN‐ICG exhibits excellent cytocompatibility, significantly enhances hepatocyte uptake, and produces excessive reactive oxygen species (ROS) upon ultrasound ...
Alap Ali Zahid +6 more
wiley +1 more source
, 2010 We answer a question raised by Lov\'asz and B. Szegedy [Contractors and connectors in graph algebras, J. Graph Theory 60:1 (2009)] asking for a contractor for the graph parameter counting the number of B-flows of a graph, where B is a subset of a finite ...
Garijo, Delia +2 more
core +1 more source
Signal Variation Metrics and Graph Fourier Transforms for Directed Graphs
, 2023 In this paper we consider the problem of constructing graph Fourier transforms (GFTs) for directed graphs (digraphs), with a focus on developing multiple GFT designs that can capture different types of variation over the digraph node-domain. Specifically, for any given digraph we propose three GFT designs based on the polar decomposition. Our method is
Shimabukuro, Laura, Ortega, Antonio
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Approximate Fast Graph Fourier Transforms via Multilayer Sparse Approximations [PDF]
IEEE Transactions on Signal and Information Processing over Networks, 2018 The Fast Fourier Transform (FFT) is an algorithm of paramount importance in signal processing as it allows to apply the Fourier transform in O(n log n) instead of O(n 2) arithmetic operations. Graph Signal Processing (GSP) is a recent research domain that generalizes classical signal processing tools, such as the Fourier transform, to situations where ...
Le Magoarou, Luc +2 more
openaire +3 more sources
Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation
Advanced Functional Materials, EarlyView.Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu +9 more
wiley +1 more source