Results 81 to 90 of about 382,088 (346)

Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems

open access: yesAdvanced Optical Materials, EarlyView.
The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley   +1 more source

RR Tel: Determination of Dust Properties During Minimum Obscuration

open access: yesOpen Astronomy, 2012
the ISO infrared spectra and the SAAO long-term JHKL photometry of RR Tel in the epochs during minimum obscuration are studied in order to construct a circumstellar dust model.
Jurkić T., Kotnik-Karuza D.
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Probiotics and Prebiotics as a Therapeutic Strategy to Improve Memory in a Model of Middle-Aged Rats

open access: yesFrontiers in Aging Neuroscience, 2018
Aging is associated with morphological, physiological and metabolic changes, leading to multiorgan degenerative pathologies, such as cognitive function decline.
Alejandra Romo-Araiza   +10 more
doaj   +1 more source

Recent photometry of symbiotic stars - XII

open access: yes, 2007
We present new photometric observations of 15 symbiotic stars (EG And, Z And, AE Ara, BF Cyg, CH Cyg, CI Cyg, V1329 Cyg, TX CVn, AG Dra, Draco C-1, RW Hya, SY Mus, AR Pav, AG Peg, AX Per) covering their last orbital cycle(s) from 2003.9 to 2007.2.
Bruch   +29 more
core   +1 more source

Utilizing Causal Network Markers to Identify Tipping Points ahead of Critical Transition

open access: yesAdvanced Science, EarlyView.
The study proposes a causal network markers (CNMs) framework to identify early‐warning signals preceding critical transitions. It validates CNMs on various computational benchmark models and real‐world datasets, demonstrating higher accuracy and flexibility compared to existing approaches.
Shirui Bian   +4 more
wiley   +1 more source

Spectroscopic Observations of the Recurrent Symbiotic Nova V407 Cyg During 2001 - 2009

open access: yesOpen Astronomy, 2012
We analyze the results of our spectroscopic monitoring of V407 Cyg in 2001–2009. the slow decline in optical brightness connected with the evolution of a Z And-type outburst (maximum in 1998) was observed in 2001–2003.
Esipov V. F.   +6 more
doaj   +1 more source

Symbiotic novae

open access: yesContributions of the Astronomical Observatory Skalnaté Pleso
(Invited Review) According to modern definition, a symbiotic nova is an otherwise normal nova (i.e. powered by explosive thermonuclear burning) that erupts within a symbiotic star, which is a binary where a WD accretes from a cool giant companion. Guided primarily by the very well observed eruptions of RS Oph in 2006 and 2021, and that of V407 Cyg in ...
openaire   +2 more sources

Targeting Multilayered Metabolic Networks in Brain Diseases: Emerging Perspectives on Nanodelivery Strategies

open access: yesAdvanced Science, EarlyView.
Brain diseases involve multilayered metabolic disruptions that reshape cellular interactions and microenvironments. This review outlines core metabolic features across disease states and presents emerging nanodelivery strategies as precision tools to reprogram pathological metabolism.
Jingyi Zhou, Chen Jiang
wiley   +1 more source

Differential gene expression analysis of symbiotic and aposymbiotic Exaiptasia anemones under immune challenge with Vibrio coralliilyticus

open access: yesEcology and Evolution, 2019
Anthozoans are a class of Cnidarians that includes scleractinian corals, anemones, and their relatives. Despite a global rise in disease epizootics impacting scleractinian corals, little is known about the immune response of this key group of ...
Charles L. Roesel, Steven V. Vollmer
doaj   +1 more source

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