Results 121 to 130 of about 2,897,668 (300)

Wideband Anti-Jamming Based on Free Space Optical Communication and Photonic Signal Processing. [PDF]

Sensors (Basel), 2021
Wu B, Qi Y, Qiu C, Tang Y.
europepmc   +1 more source

GPS ANTI-JAMMING TECHNIQUE USING SMART ANTENNA SYSTEMS

Arid Zone Journal of Engineering, Technology and Environment, 2019
This paper presents a global positioning system (GPS) anti-jamming technique using a smart antenna system. In anti-jamming systems, adaptive array antennas are used to estimate the direction of signals arriving at the antenna and spatially filter the desired signal from the unwanted signals by adaptively controlling the direction of the maximum ...
Akobundu, G.C., Gbenga-Ilori, A.O.
openaire   +2 more sources

Whole tissue imaging of cellular boundaries at sub‐micron resolutions for deep learning cell segmentation: Applications in the analysis of epithelial bending of ectoderm

Developmental Dynamics, EarlyView.
Abstract Background To understand cellular morphology, biologists have relied on traditional optical microscopy of tissues combined with tissue clearing protocols to image structures deep within tissues. Unfortunately, these protocols often struggle to retain cell boundary markers, especially at high enough resolutions necessary for precise cell ...
Sam C. P. Norris, Jimmy K. Hu, Neil H. Shubin   +2 more
wiley   +1 more source

Patterns of understorey bird diversity across Amazonian forests: survey effort and range maps predict local species richness

Ecography, EarlyView.
Species diversity typically increases from higher to lower latitudes, but the regional‐scale variation along this geographic gradient remains unclear. It has been suggested that species diversity throughout Amazonia generally increases westward toward the Andes, but this pattern and its environmental determinants require further investigation for most ...
Pilar L. Maia‐ Braga, Anderson S. Bueno, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Affonso H. N. Souza, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Dinuclear Rhodium(I)–N‐Heterocyclic Carbene Complexes as Alkyne Hydropyridonation Catalysts

European Journal of Inorganic Chemistry, EarlyView.
Catalyst Improvement by NHC tuning: A series of new RhI–NHC dinuclear complexes has been revealed as efficient alkyne hydropyridonation catalysts. 333053IMes complex displays the highest reactivity of the series, suggesting that a moderate steric demand combined with balanced σ‐donation facilitates precatalyst activation and substrate exchange.
Belinda Español‐Sánchez, Mert Olgun Karataş, Andrea Di Giuseppe, Ulugbek Togaev, Vincenzo Passarelli, Luis A. Oro, Jesús J. Pérez‐Torrente, Ricardo Castarlenas   +7 more
wiley   +1 more source

Ketogenic diet for infantile epileptic spasms

Epilepsia Open, EarlyView.
Abstract Approximately half of all cases of Infantile Epileptic Spasms Syndrome (IESS) do not respond to vigabatrin and hormonal therapies. There is no clear consensus as to the second‐line therapy for IESS. Ketogenic diet (KD) has emerged as an effective treatment for certain drug‐resistant epilepsies and in many cases of IESS.
Morris H. Scantlebury, Anamika Choudhary, Andy Cheuk‐Him Ng, Cezar Gavrilovici   +3 more
wiley   +1 more source

A Reinforcement Learning-based Intelligent Learning Method for Anti-active Jamming in Frequency Agility Radar [PDF]

Radioengineering
Active jamming's flexibility and variability pose significant challenges for frequency-agility radar (FAR) detection, as it can continuously intercept and retransmit radar signals to suppress or deceive the radar.
J. Wei, L. Yu, Y. Wei, R. Xu
doaj  

Stiripentol use in Dravet syndrome patients in the USA: Results of a real‐world study

Epilepsia Open, EarlyView.
Abstract Objective Dravet syndrome (DS) is a severe developmental and epileptic encephalopathy with a high seizure burden and mortality risk. Stiripentol, one of the first DS‐specific therapies, received FDA approval in 2018 but its real‐world use and impact post‐approval in the USA remain insufficiently characterized.
Elaine Wirrell, James Wheless, Michael Scott Perry, Linda Laux, Karen C. Keough, Julie Ziobro, Aimee F. Luat, Gewalin Aungaroon, Michael A. Ciliberto, Roxane Noel, Laurent Chancharme, Joseph Sullivan   +11 more
wiley   +1 more source

Engineered Probiotics: The Next‐Generation Therapeutics to Combat Antibiotic‐Resistant Bacterial Infections

Food Frontiers, EarlyView.
Engineered probiotics secretes fusion proteins which potentially neutralized the toxins secreted by other microbial communities. ABSTRACT On a global scale, the escalating burden of infectious diseases, predominantly attributed to bacterial pathogens, especially drug‐resistant strains, has progressed into a critical concern for clinical management and ...
Indu Singh, Raz Abdulqadir, Indira Kumari Verma, Yashika Awasthi, Arun Ratn, Juhi Sharma, Manmeet Rawat, Megh Singh Dhakad, Jasbir Dalal, Yash Gupta, Bhisham Narayan Singh, Divakar Sharma   +11 more
wiley   +1 more source

An anti-jamming logarithmic receiver

, 1959
Radar receivers presently employed by the Canadian Armed Services are little use against chaff drops, or spot and slow-sweep electronic jammers, which almost invariably cause the receivers to saturate. A logarithmic receiver is a useful ECCM device in an air-defence radar set subjected to this jamming.
openaire   +1 more source