Results 41 to 50 of about 151,349 (311)

Onboard Processing of Synthetic Aperture Radar Backprojection Algorithm in FPGA

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Synthetic aperture radar is a microwave technique to extracting image information of the target. Electromagnetic waves that are reflected from the target are acquired by the aircraft or satellite receivers and sent to a ground station to be processed by ...
David Mota   +6 more
doaj   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

open access: yesFEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman   +4 more
wiley   +1 more source

Airborne Radar Super-Resolution Imaging Based on Fast Total Variation Method

open access: yesRemote Sensing, 2021
Total variation (TV) is an effective super-resolution method to improve the azimuth resolution and preserve the contour information of the target in airborne radar imaging.
Qiping Zhang   +4 more
doaj   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

open access: yesFEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young   +7 more
wiley   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

open access: yesFEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong   +3 more
wiley   +1 more source

Computational systems pharmacology analysis of Tong-Jing-Yi formula in the treatment of dysmenorrhea

open access: yesClinical and Experimental Obstetrics & Gynecology, 2022
Background: Tong-Jing-Yi (TJY) formula consists of Leonurus, fried Toosendan and processed Cyperus, etc. The therapeutic effect of TJY on dysmenorrhea has been clinically validated, but the underlying mechanism remains unclear. The present study aimed to
Yueyan Li, Jialei Zhu, Jing Tang
doaj   +1 more source

Formulas for series computations [PDF]

open access: yesApplicable Algebra in Engineering, Communication and Computing, 1992
Let \(K\) be a field of characteristic 0, \(\overline K\) an algebraic closure of \(K\) and \(K(x)\) the rational function field in one variable \(x\) over \(K\). The paper describes an algorithm that computes for an element \(f\) of \(K(x)\) for each \(n\in\mathbb N\) and \(m\in\{1,\dots,n\}\) a univariate polynomial \(B_{nm}\) over \(K\) whose roots ...
openaire   +1 more source

On computing Gauss-Kronrod quadrature formulae [PDF]

open access: yesMathematics of Computation, 1986
We discuss the use of Newton’s method for computing Gauss-Kronrod quadrature formulae from modified moments. The underlying nonlinear maps are analyzed from the point of view of numerical condition. A method is indicated of computing the polynomial whose zeros are the Kronrod nodes.
CALIO', FRANCA   +2 more
openaire   +2 more sources

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

An Optimized Method for 3D Magnetic Navigation of Nanoparticles inside Human Arteries

open access: yesFluids, 2021
A computational method for optimum magnetic navigation of nanoparticles that are coated with anticancer drug inside the human vascular system is presented in this study. For this reason a 3D carotid model is employed.
Evangelos Karvelas   +4 more
doaj   +1 more source

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