IEEE

A Digital Superresolution Method With Minimal Sensitivity to Shift Estimation Error

Abstract: Superresolution (SR) methods become essential when an undersampled low-resolution (LR) image is unable to provide accurate target detection. The estimation of an HR image from a single LR ...
IEEE

On Optimal Sampling for Learning SDF Using MLPs Equipped With Positional Encoding

Abstract: Neural implicit fields, such as the neural signed distance field (SDF) of a shape, have emerged as a powerful representation for many applications, e.g., encoding a 3D shape and performing ...
IEEE

Sampling and Layout of OPM Arrays for MCG Based on the Sampling Theorem

Abstract: Given that the sampling and arrangement of the array need a reasonable standard to guide in high-precision magnetocardiography (MCG) imaging, the sampling range required for robust ...
Scientific Research Publishing

A. J. Jerri, “The Shannon Sampling Theorem: Its Various Extensions and Applications a Tutorial Review,” Proceedings of the IEEE, Vol. 65, No. 11, 1977, pp. 1565- 1596. doi ...

ABSTRACT: In many real-time resource-constrained embedded systems, highly-predictable system behavior is a key design requirement. The “time-triggered co-operative” (TTC) scheduling algorithm provides ...
IEEE

Sparse Sampling in Fractional Fourier Domain: Recovery Guarantees and Cramér–Rao Bounds

Abstract: Sampling theory in fractional Fourier Transform (FrFT) domain has been studied extensively in the last decades. This interest stems from the ability of the FrFT to generalize the traditional ...
IEEE

Derivative Sampling of Periodic and Nonperiodic Band-Limited Signals — Fourier Spectrum and Interpolation Formula

Abstract: For periodic and nonperiodic band-limited signals, the sampling of both the signal and the signal derivative enables the number of sampling points to be reduced and the sampling step between ...
IEEE

A Sampling Theorem for Exact Identification of Continuous-Time Nonlinear Dynamical Systems

Abstract: Low sampling frequency challenges the exact identification of continuous-time (CT) dynamical systems from sampled data, even when their models are identifiable. A necessary and sufficient ...
Seeking Alpha

Primary Hydrogen Reports Anomalous Hydrogen Values From Phase 1 Soil Gas Sampling at Point Rosie and Mary's Harbour Properties, Newfoundland and Labrador

CALGARY, AB / ACCESS Newswire / November 26, 2025 / Primary Hydrogen Corp. (TSXV:HDRO)(OTCQB:HNATF)(FRA:83W0) (the "Company" or "Primary Hydrogen") announces completion of its Phase 1 field program at ...
Journalism in the Americas

Stephen Hawking Was Right: Black Holes Always Grow in Area

Researchers celebrate 10th anniversary of gravitational wave discovery, announce verification of a Hawking theorem. Two black holes spiral together and violently merge in this simulation of an event ...
IEEE

Dual-Conditional Diffusion Model for Seismic Data Reconstruction: Integrating Observed Data and Sampling Matrix Constraints

Abstract: Seismic exploration relies heavily on high-quality data acquisition, but practical limitations often result in incomplete seismic data, violating the Nyquist sampling theorem and introducing ...
CBS News

Teens come up with trigonometry proof for Pythagorean Theorem, a problem that stumped math world for centuries

This is an updated version of a story first published on May 5, 2024. For many high school students returning to class, it may seem like geometry and trigonometry were created by the Greeks as a form ...