Results 81 to 90 of about 2,170 (281)

Using Particle Filter for Estimating Velocity of Maneuvering Target Being Tracked by Passive Radar

Syrian Journal for Science and Innovation
Tracking a target is achieved by estimating its range and velocity, and this process has two types: Bistatic Tracking and Cartesian Tracking. In a passive radar system, the bistatic tracking is achieved by processing the bistatic geometry “One non ...
Anas Almanofi , Ali Kazem
doaj   +1 more source

A specific pole placement technique to minimise hardware requirements within a real time terrestrial and cable video echo canceller

, 1998
The real time hardware architecture of a deterministic video echo canceller (deghoster) system is presented. The deghoster is capable of calculating all the multipath channel distortion characteristics from terrestrial and cable television in one single ...
R.S. Sherratt, Sherratt, Robert Simon
core   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

The Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

PUSIF-DUNet: Deep SAR Imaging Network With Joint Optimization on Learnable Probabilistic Undersampling and Unambiguous Reconstruction

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Since the minimum antenna area constraint in the spaceborne single-channel synthetic aperture radar (SAR), it's difficult to achieve high-resolution and wide-swath imaging simultaneously.
Zirui Ma, Zhe Zhang, Bingchen Zhang, Xiaolan Qiu   +3 more
doaj   +1 more source

Reducing ghosting due to k-space discontinuities in fast spin echo (FSE) imaging by a new combination of k-space ordering and parallel imaging

, 2009
In multi-echo imaging sequences like fast spin echo (FSE), the point spread function (PSF) in the phase encoding direction contains significant secondary peaks (sidebands).
Ordidge, Roger J., Carmichael, David W., Thomas, David L.   +2 more
core   +1 more source

Identifying Unique Subgroups of Emotional and Behavioral Presentations in a Large Inpatient and Community Sample of Autistic Youth

Autism Research, EarlyView.
ABSTRACT Autistic youth exhibit wide variability in emotional and behavioral challenges, yet few studies have identified meaningful subgroups based on these profiles. This study applied a random forests ensemble clustering algorithm to item‐level parent‐report data from the Emotion Dysregulation Inventory (EDI) and the Child Behavior Checklist (CBCL ...
Safaa Eldeeb, Jessie Northrup, Caitlin Conner, Shalini Sivathasan, Ligia Antezana, Matthew Siegel, Carla Mazefsky   +6 more
wiley   +1 more source

Double-sampled echo-planar imaging at 3 tesla.

, 1996
International audienceA persistent artifact in the images acquired by the echo-planar imaging (EPI) method is the Nyquist or N/2 ghost which interferes with the image and reduces the signal-to-noise ratio (SNR).
Smith, M. B., Le Bihan, D., Posse, S., Yang, Q. X.   +3 more
core  

Echo planar imaging artifact correction with parallel imaging

, 2016
Echo planar imaging (EPI) is a fast imaging technique that has been widely used in various MRI applications, such diffusion, perfusion and functional magnetic resonance imaging (fMRI).
Xie, Bin, 解斌
core   +1 more source

The interplay between molecular architecture, pharmacology, and suspected adverse drug reactions associated with nonsteroidal androgen antagonists in the United Kingdom

British Journal of Clinical Pharmacology, EarlyView.
Aims This work aimed to correlate potential links between the suspected adverse drug reaction (ADR) profile of licensed nonsteroidal androgen receptor antagonists (NSARA) with their unique chemical properties and known off‐target polypharmacology. Methods Physicochemical and polypharmacology data were curated from the Electronic Medicines Compendium ...
Simrit Dhillon, Albert A. Antolin, Alan M. Jones   +2 more
wiley   +1 more source