Results 51 to 60 of about 36,434 (277)

Finite Radon Transform as Subcarriers Mapping Technique for OFDM System

Journal of Communications Software and Systems, 2022
Radon Transform (RT) becomes a mathematical basis for solving computerized tomography, and finds application in medical imaging and image processing. Finite groups represent digital images; the Finite Radon Transform (FRAT) is then applied.
Khalid G Samarah
doaj   +1 more source

The Radon transform of Boehmians [PDF]

Proceedings of the American Mathematical Society, 1993
The Radon transform, which enables one to reconstruct a function of N N variables from the knowledge of its integrals over all hyperplanes of dimension N − 1 N - 1 , has been extended to Schwartz distributions by several people including Gelfand, Graev, and Vilenkin, who extended it to tempered
Mikusinski, Piotr, Zayed, Ahmed
openaire   +2 more sources

Cold Atmospheric Plasma‐Activated Decellularized Extracellular Matrix Gel as a Tumor‐Infiltrating Immunoactivation Platform for Post‐Surgical Cancer Immunotherapy

Advanced Materials, EarlyView.
An injectable cold atmospheric plasma‐activated decellularized tumor extracellular matrix hydrogel is introduced as a post‐surgical immunoactivation platform. The engineered gel attracts residual tumor cells and induces immunogenic cell death, reshaping the tumor microenvironment and eliciting systemic antitumor immunity. In combination with checkpoint
Tianxu Fang, Mo Chen, Yueyang Deng, Tianqin Ning, Tianwen Luo, Guojun Chen   +5 more
wiley   +1 more source

Low Complexity Keystone Transform and Radon Fourier Transform Utilizing Chirp-Z Transform

IEEE Access, 2020
Keystone Transform (KT) and Radon Fourier Transform (RFT) are two popular methods proposed to overcome range migration in radars. A major concern in these methods is the computational complexity for real time operations.
Onur Culha, Yalcin Tanik
doaj   +1 more source

Extending the Support Theorem to Infinite Dimensions [PDF]

, 2009
The Radon transform is one of the most useful and applicable tools in functional analysis. First constructed by John Radon in 1917 it has now been adapted to several settings.
Becnel, Jeremy J.
core   +2 more sources

Trkalian fields: ray transforms and mini-twistors

, 2013
We study X-ray and Divergent beam transforms of Trkalian fields and their relation with Radon transform. We make use of four basic mathematical methods of tomography due to Grangeat, Smith, Tuy and Gelfand-Goncharov for an integral geometric view on them.
Bailey T. N., Baird P., Dunajski M., Erdelyi A., Folland G. B., Gelfand I. M., Gelfand I. M., Gelfand I. M., Gelfand I. M., Gonzalez F. B., Gradshteyn I. S., Grangeat P., Jeffrey A., K. Saygili, Kanwal R. P., Louis A. K., Lundquist S., Markoe A., Marsden J. E., Minkowski H., Murray M. K., Palamadov V. P., Pantilie R., Pantilie R., Penrose R., Penrose R., Radon J., Ramm A. G., Rubin B., Semyanistyi V. I., Semyanistyi V. I., Shaw W. T., Stratton J. A., Watson G. N.   +33 more
core   +1 more source

All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security

Advanced Materials, EarlyView.
An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak, Changgyun Moon, Hyun‐Bin Yu, Sunkook Kim, Dong‐Hwan Kim   +4 more
wiley   +1 more source

Isometry property and inversion of a spherical mean Radon transform with centers on a hyperplane

AIP Advances
The spherical mean Radon transform maps a suitable function f to the integral of f over a sphere. This transform is used in photoacoustic tomography based on the wave equation.
Jeongmin Kim, Sunghwan Moon
doaj   +1 more source

Holography on local fields via Radon transform

Journal of High Energy Physics, 2018
We define Radon transform and its inverse on the two-dimensional anti-de Sitter space over local fields using a novel construction through a quadratic equation over the local field.
Samrat Bhowmick, Koushik Ray
doaj   +1 more source

Sparse Parabolic Radon Transform with Nonconvex Mixed Regularization for Multiple Attenuation

Applied Sciences, 2023
The existence of multiple reflections brings difficulty to seismic data processing and interpretation in seismic reflection exploration. Parabolic Radon transform is widely used in multiple attenuation because it is easily implemented, highly robust and ...
Qiuying Wu, Bin Hu, Cai Liu, Junming Zhang   +3 more
doaj   +1 more source