Results 51 to 60 of about 609 (157)

Assessing the Worth of Noble Gas Tracer Concentrations in Alluvial River‐Aquifer Systems Using Data Space Inversion

open access: yesWater Resources Research, Volume 62, Issue 7, July 2026.
Abstract Alluvial systems are dynamic, structurally complex environments. Groundwater that is extracted from these systems is widely used for domestic consumption. Numerical models play an important role in the management of this extraction. To provide support for decision‐making, models must assimilate data that inform the spatial and temporal ...
Hugo Delottier   +4 more
wiley   +1 more source

Renormalization techniques for inflation systems and some of their applications

open access: yesActa Crystallographica Section A, Volume 82, Issue 4, Page 294-304, July 2026.
In this work, renormalization methods for quantities related to the diffraction of inflation systems are surveyed.Exact renormalization techniques are important and powerful, particularly for inflation‐generated systems. We review recent results in this direction.
Michael Baake   +4 more
wiley   +1 more source

Fast Fourier Transform at Nonequispaced Nodes and Applications [PDF]

open access: yes, 2005
The direct computation of the discrete Fourier transform at arbitrary nodes requires O(NM) arithmetical operations, too much for practical purposes. For equally spaced nodes the computation can be done by the well known fast Fourier transform (FFT) in ...
Fenn, Markus
core  

Comprehensive Biophysical Profiling Evidences Self‐Oligomerization of Bacterially Expressed Pc Protein

open access: yesChemBioChem, Volume 27, Issue 11, 15 June 2026.
Polycomb (Pc), a core component of Polycomb Repressive Complex 1 (PRC1), is largely intrinsically disordered yet forms buffer‐ and concentration‐dependent higher‐order assemblies. Integrative biophysical analysis and cryo‐electron microscopy reveal dynamic, heterogeneous oligomers, whereas AlphaFold modeling suggests that structural organization is ...
Maria Zahid   +4 more
wiley   +1 more source

A pipelined IC architecture for radon transform computations in a multiprocessor array [PDF]

open access: yes, 1990
The amount of data generated by CT scanners is enormous, making the reconstruction operation slow, especially for 3-D and limited-data scans requiring iterative algorithms.
Current, K.W. (California Univ., Davis, CA (USA). Dept. of Electrical Engineering and Computer Science)   +2 more
core  

Lossless Image Compression and Selective Encryption Using a Discrete Radon Transform

open access: yes, 2015
In this paper we propose a new joint encryption and lossless compression technique designed for large images. The proposed technique takes advantage of the Mojette transform properties, and can easily be included in a distributed storage architecture ...
Autrusseau, Florent   +3 more
core   +2 more sources

Tomographic Application-Specific Integrated Circuits for Fast Radon Transformation [PDF]

open access: yes, 2019
The application-specific integrated circuit (ASIC) for tomographic processing of point objects is developed. The processing method is based on discrete Radon transform. We constructed modified method of replacing Radon transform with Fourier transform
Ackoski, Jugoslav
core  

Efficient architectures and power modelling of multiresolution analysis algorithms on FPGA

open access: yes, 2011
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In the past two decades, there has been huge amount of interest in Multiresolution Analysis Algorithms (MAAs) and their applications.
Sazish, Abdul Naser
core  

Fast Mojette Transform for Discrete Tomography

open access: yes, 2010
22 pages, 13 figures, Submitted to Elsevier Signal ProcessingA new algorithm for reconstructing a two dimensional object from a set of one dimensional projected views is presented that is both computationally exact and experimentally practical.
Normand, Nicolas   +4 more
core  

Convex Analysis for Minimizing and Learning Submodular Set Functions [PDF]

open access: yes, 2013
The connections between convexity and submodularity are explored, for purposes of minimizing and learning submodular set functions. First, we develop a novel method for minimizing a particular class of submodular functions, which can be expressed as a
Peter Stobbe, Stobbe, Peter
core   +1 more source

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