Results 111 to 120 of about 8,598 (236)

Omnidirectional Ultra‐Broadband Cu/TiO2 Metasurface Absorbers for High‐Efficiency Solar Thermal Conversion and Photothermal Plasmon‐Driven Catalysis

Advanced Optical Materials, EarlyView.
Metasurface shows selective solar–thermal energy conversion with high‐activity solar/laser‐driven chemistry. The breakthrough is co‐designing broadband FP‐cavity + plasmonic LSPR/SLR resonances in an ultra‐thin metamaterial so that it not only harvests the most efficient proportion of solar radiation but also suppresses mid and IR emissivity. Moreover,
Samira Mehrabi, HaoYu Zhang, Narendra Chaulagain, Edgar Acosta, Nazir P. Kherani   +4 more
wiley   +1 more source

A compound pulsed magnetic field achieves superior cognitive benefits against Alzheimer's disease progression via multi-level restoration of neural oscillations and cerebral perfusion

Neurotherapeutics
The link between impaired gamma oscillations and Alzheimer's disease (AD) has inspired therapies using rhythmic physical stimuli. However, given that cognition requires cross-frequency interactions like theta-gamma coupling, single-frequency stimulation ...
Xue Wang, Xuting Wang, Haoyu Zhao, Chuncheng Zhao, Pingping Wang, Tao Song   +5 more
doaj   +1 more source

Rotating Fluorescent Nanodiamond Assemblies With Focused Laguerre–Gaussian Beams

Advanced Optical Materials, EarlyView.
Self‐assembled fluorescent nanodiamond clusters are optically trapped and driven into controlled two‐dimensional rotation with Laguerre–Gaussian beams. With localized optical excitation, optically detected magnetic resonance spectra are collected at defined points along the orbit in a uniform external magnetic field.
Adam Stewart, Anthony J. El‐Helou, Ying Zhu, David McGloin, David A. Simpson, Peter J. Reece   +5 more
wiley   +1 more source

Alterations in theta-gamma coupling and sharp wave-ripple, signs of prodromal hippocampal network impairment in the TgF344-AD rat model. [PDF]

Front Aging Neurosci, 2023
van den Berg M, Toen D, Verhoye M, Keliris GA.   +3 more
europepmc   +1 more source

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

Advanced 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

Theta-gamma coupling as a cortical biomarker of brain-computer interface-mediated motor recovery in chronic stroke. [PDF]

Brain Commun, 2022
Rustamov N, Humphries J, Carter A, Leuthardt EC.   +3 more
europepmc   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

Cortical and subcortical activities during food rewards versus social interaction in rats

Scientific Reports
Balancing food foraging with social interaction is crucial for survival and reproduction in many species of mammals. We wanted to investigate the reward preferences in adult male rats by allowing them to lever-press for both food and social rewards ...
Florbela Rocha-Almeida, Ana R. Conde-Moro, Antonio Fernández-Ruiz, José M. Delgado-García, Agnès Gruart   +4 more
doaj   +1 more source

Cross-frequency coupling patterns during oddball processing in disorders of consciousness: a delta–gamma predominance

Frontiers in Psychology
BackgroundPhase–amplitude coupling (PAC) between low- and high-frequency oscillations provides a candidate mechanism for integrating information across cortical networks.
Binbin Huang, Qian Zhang, Hongwei Li, Qian Liu, Hongxing Cui, Deqiang Wang, Wei Li   +6 more
doaj   +1 more source