Results 11 to 20 of about 157 (131)

Almost billfish: convergent longirostry, micro-dentition, and possible glandular sinuses in a large teleost fish from the Upper Cretaceous of Northern Italy. [PDF]

open access: yesJ Anat
A fossil rostrum fragment of a large teleost fish from the Upper Cretaceous of Northern Italy reveals remarkable anatomical convergences with Cenozoic and Recent billfishes (marlins, swordfishes, and akin). The extinct group Plethodidae independently acquired a long snout, micro‐teeth, and oil‐gland sinuses well before the evolution of true billfishes.
Serafini G   +5 more
europepmc   +2 more sources

The Ridgelet transform of distributions [PDF]

open access: yesIntegral Transforms and Special Functions, 2013
We define and study the ridgelet transform of (Lizorkin) distributions. We establish connections with the Radon and wavelet transforms.
Kostadinova, Sanja   +3 more
openaire   +3 more sources

Discrete analytical Ridgelet transform [PDF]

open access: yesSignal Processing, 2004
In this paper, we present a new implementation of the Ridgelet transform based on discrete analytical 2-D lines: the discrete analytical Ridgelet transform (DART). This transform uses the Fourier strategy for the computation of the associated discrete Radon transform.
Carré, Philippe, Andres, Eric
openaire   +1 more source

Overview of ionosphere clutter suppression for high frequency surface wave radar (HFSWR) system: Observation, approaches, challenges and open issue

open access: yesIET Radar, Sonar &Navigation, Volume 17, Issue 12, Page 1743-1759, December 2023., 2023
An overview of the past and current clutter theoretical models and clutter suppression techniques in the HFSWR system is provided. The experimental results involved in the complex long‐term ionosphere observation are discussed. Special attention is paid to the correlation between the signal degradation sources and eliminating clutter techniques ...
Xiaowei Ji   +3 more
wiley   +1 more source

Priors in Bayesian Deep Learning: A Review

open access: yesInternational Statistical Review, Volume 90, Issue 3, Page 563-591, December 2022., 2022
Summary While the choice of prior is one of the most critical parts of the Bayesian inference workflow, recent Bayesian deep learning models have often fallen back on vague priors, such as standard Gaussians. In this review, we highlight the importance of prior choices for Bayesian deep learning and present an overview of different priors that have ...
Vincent Fortuin
wiley   +1 more source

Robust medical zero‐watermarking algorithm based on Residual‐DenseNet

open access: yesIET Biometrics, Volume 11, Issue 6, Page 547-556, November 2022., 2022
Abstract To solve the problem of poor robustness of existing traditional DCT‐based medical image watermarking algorithms under geometric attacks, a novel deep learning‐based robust zero‐watermarking algorithm for medical images is proposed. A Residual‐DenseNet is designed, which took low‐frequency features after discrete cosine transformation of ...
Cheng Gong   +5 more
wiley   +1 more source

Statistical quality control using image intelligence: A sparse learning approach

open access: yesNaval Research Logistics (NRL), Volume 69, Issue 7, Page 996-1008, October 2022., 2022
Abstract Advances in image acquisition technology have made it convenient and economic to collect large amounts of image data. In manufacturing and service industries, images are increasingly used for quality control purposes because of their ability to quickly provide information about product geometry, surface defects, and nonconforming patterns.
Yicheng Kang
wiley   +1 more source

A review on short‐term load forecasting models for micro‐grid application

open access: yesThe Journal of Engineering, Volume 2022, Issue 7, Page 665-689, July 2022., 2022
Abstract Load forecasting (LF), particularly short‐term load forecasting (STLF), plays a vital role throughout the operation of the conventional power system. The precise modelling and complex analyses of STLF have become more significant in advanced microgrid (MG) applications.
V. Y. Kondaiah   +3 more
wiley   +1 more source

Multivariable passive method for detection of islanding events in renewable energy based power grids

open access: yesIET Renewable Power Generation, Volume 16, Issue 3, Page 497-516, 24 February 2022., 2022
Abstract Penetration of distributed generation resources (DGR) in power grid is rapidly increasing to meet future energy demand efficiently. It helps in mitigating the problems of high carbon emission, green house effect, and increased cost of oil and natural gases.
Nagendra Kumar Swarnkar   +3 more
wiley   +1 more source

Pixel‐Boundary‐Dependent Segmentation Method for Early Detection of Diabetic Retinopathy

open access: yesMathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
Early and precise detection of diabetic retinopathy prevents vision impairments through computer‐aided clinical procedures. Identifying the symptoms and processing those by using sophisticated clinical procedures reduces hemorrhage kind of risks.
S. G. Sandhya   +3 more
wiley   +1 more source

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