Results 61 to 70 of about 669,386 (303)
Direction Finding Using GHA Neural Networks
Al-Khawarizmi Engineering Journal, 2006 This paper adapted the neural network for the estimating of the direction of arrival (DOA). It uses an unsupervised adaptive neural network with GHA algorithm to extract the principal components that in turn, are used by Capon method to estimate the DOA,
N. H. Abbas
doaj
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Mutual coupling compensation for direction finding using receiving mutual impedance
, 2014 The accuracy of direction finding using antenna arrays with different array apertures is studied. Numerical simulations are performed using full-wave moment method.
Hon Tat Hui +3 more
core +1 more source
Direction Finding of ELF Emissions in Auroral Zone
Antarctic Record, 1976 The observation of arrival direction for elliptically polarized ELF and VLF electromagnetic waves, based on a new method developed by TSURUDA and HAYASHI (1975), was carried out at Syowa Station in Antarctica from March, 1974 to January, 1975.
Natsuo SATO, Kanji HAYASHI
doaj +1 more source
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
PERFORMANCE ANALYSIS FOR DIRECTION-FINDING CIRCULAR ANTENNA ARRAY
Известия высших учебных заведений России: Радиоэлектроника, 2018 This paper considers circular antenna arrays comprised of symmetrical dipole radiators applied in communication, navigation and monitoring systems. Despite their widespread use, a number of significant issues is underinvestigated.
Svyatoslav V. Ballandovich +3 more
doaj +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
, 2002 The performance of different direction finding algorithms for the circular arrays is investigated in this paper. Several direction estimation algorithms are studied with their pros and cons discussed.
Nix, AR +5 more
core
Intelligent Metasurface for Direction Finding
International audienceAn intelligent metasurface is proposed for finding the direction of incoming electromagnetic waves. The programmable metasurface is exploited as a reflector with an adjustable pointing direction to scan the azimuth plane for ...
Burokur, Shah Nawaz +3 more
core +1 more source
Molecular Oncology, EarlyView.Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson +9 more
wiley +1 more source