Results 51 to 60 of about 286,691 (306)

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

FEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli, Enrico Landi, Francesco Maiurano, Irene Paris, Rosanna Papa, Marco Artini, Laura Selan, Stefano Borocci, Francesco Buonocore, Esther Imperlini   +9 more
wiley   +1 more source

Diagnostics of geomagnetically-induced currents in high-tension electric transmission lines [PDF]

E3S Web of Conferences, 2019
The problem of geomagnetically-induced currents (GIC) effect on electrotechnical systems is topical as long as uninterrupted power distribution is critically important for all the spheres of human activity.
Sivokon Vladimir, Cherneva Nina, Malkin Evgeniy   +2 more
doaj   +1 more source

Radio Astronomical Polarimetry and the Lorentz Group [PDF]

, 1999
In radio astronomy the polarimetric properties of radiation are often modified during propagation and reception. Effects such as Faraday rotation, receiver cross-talk, and differential amplification act to change the state of polarized radiation.
Barakat R., Cloude S. R., Conway R. G., Jones R. C., M. C. Britton, Mueller H., Parrent G. B., Pellat-Finet P., Whitney C., Wolf E.   +9 more
core   +3 more sources

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

International 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, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

NICMOS and VLBA observations of the gravitational lens system B1933+503 [PDF]

, 1998
NICMOS observations of the complex gravitational lens system B1933+503 reveal infrared counterparts to two of the inverted spectrum radio images. The infrared images have arc-like structures. The corresponding radio images are also detected in a VLBA map
Browne, I. W. A., Jackson, N., Marlow, D. R., Wilkinson, P. N.   +3 more
core   +3 more sources

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Deformation-Electromagnetic Relations in Lithospheric Activity Manifestations

E3S Web of Conferences, 2018
It has been shown that dipole radiation of accelerated charges, described by Larmor relation, is the basis of the known mechanic-electromagnetic processes of rock deformation.
Larionov Igor, Malkin Evgeny, Uvarov Vladimir   +2 more
doaj   +1 more source

Radio Wave Propagation [PDF]

Nature, 1963
Monograph on Radio-Wave Propagation in the Troposphere Proceedings of Commission II on Radio and Troposphere during the XIIIth General Assembly of URSI, London, September 1961. Edited by J. A. Saxton. Pp. viii + 200. (Amsterdam and New York: Elsevier Publishing Company, 1962.) 48s. Monograph on Ionospheric Radio XIIIth General Assembly of URSI, London,
openaire   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

The Gaseous Environments of Radio Galaxies [PDF]

, 1999
X-ray emission traces the gaseous environments of radio sources. The medium must be present for jet confinement, but what are its influence on jet fuelling, dynamics, propagation, and disruption?
Allen, Allen, Arnaud, Arnaud, Barthel, Birkinshaw, Bliton, Boella, Bremer, Brunetti, Böhringer, Canosa, Carilli, Ciotti, Colla, Crawford, D.M Worrall, Fabbiano, Fabbiano, Fanaroff, Feigelson, Feigelson, Feretti, Ferrarese, Hardcastle, Hardcastle, Hardcastle, Hardcastle, Hardcastle, Hardcastle, Harris, Killeen, Laing, Leahy, Matsumoto, Miller, Morganti, Owen, O’Dea, O’Dea, Reynolds, Sakelliou, Sambruna, Schreier, Tashiro, Trussoni, Trussoni, Tsakiris, Ueno, Ulrich, Werner, Worrall, Worrall, Worrall, Worrall, Worrall   +55 more
core   +3 more sources