Results 101 to 110 of about 90,512 (310)

A Body Conformal Ultrasound Receiver for Efficient and Stable Wireless Power Transfer in Deep Percutaneous Charging

open access: yesAdvanced Materials, EarlyView.
Implantable devices rely on batteries that demand surgical replacement, posing risks, and financial burdens. Ultrasound energy transfer (US‐ET) offers a revolutionary wireless alternative but struggles with efficiency. The presented dielectric‐ferroelectric‐boosted US‐TENG (US‐TENGDF‐B) is thin, flexible, and biocompatible that provides high‐efficiency
Iman M. Imani   +15 more
wiley   +1 more source

Intracellular energy controls dynamics of stress-induced ribonucleoprotein granules

open access: yesNature Communications, 2022
Stress granules are associated with neurodegenerative diseases. Here, Wang et al. found intracellular energy deficiencies trigger a unique type of granules and disrupt granule disassembly through 4EBP1/eIF4A.
Tao Wang   +6 more
doaj   +1 more source

Microneedles with Interdigitated Electrodes for In Situ Impedimetric VEGF Sensing

open access: yesAdvanced Materials Interfaces, EarlyView.
An electrochemical device for transdermal monitoring based on flexible polylactide microneedles with interdigitated electrodes enables continuous monitoring of vascular endothelial growth factor (VEGF) in interstitial fluid. Gold‐coated microneedles functionalized with anti‐VEGF antibodies, provide an in situ detection platform with high sensitivity ...
Ritu Das   +10 more
wiley   +1 more source

Compacton solutions and (non)integrability for nonlinear evolutionary PDEs associated with a chain of prestressed granules [PDF]

open access: yesarXiv, 2017
We present the results of study of a nonlinear evolutionary PDE (more precisely, a one-parameter family of PDEs) associated with the chain of pre-stressed granules. The PDE in question supports solitary waves of compression and rarefaction (bright and dark compactons) and can be written in Hamiltonian form. We investigate {\em inter alia} integrability
arxiv  

Pulse Dynamics in a Chain of Granules With Friction [PDF]

open access: yes, 2003
We study the dynamics of a pulse in a chain of granules with friction. We present theories for chains of cylindrical granules (Hertz potential with exponent $n=2$) and of granules with other geometries ($n>2$). Our results are supported via numerical simulations for cylindrical and for spherical granules ($n=5/2$).
arxiv   +1 more source

Tough and Fast Thermoresponsive Hydrogel Soft Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
This work develops tough, fast‐responding thermoresponsive double‐network hydrogels that combine excellent mechanical strength with rapid actuation. Composed of PNIPAm and ether‐based polyurethane, the hydrogels achieve ≈8 MPa compressive stress and ≈30% contractile stroke within 2 min at 50 °C, enabling temperature‐responsive fluid flow switching for ...
Xi Zhang, Shazed Aziz, Zhonghua Zhu
wiley   +1 more source

Deubiquitination and the regulation of stress granule assembly [PDF]

open access: yesCurrent Genetics, 2016
Stress granules (SGs) are evolutionarily conserved ribonucleoprotein (RNP) structures that form in response to a variety of environmental and cellular cues. The presence of these RNP granules has been linked to a number of human diseases, including neurodegenerative disorders like amyotrophic lateral sclerosis (ALS) and spinocerebellar ataxia type 2 ...
Regina Nostramo, Paul K. Herman
openaire   +3 more sources

Excitation of stellar p-modes by turbulent convection : 2. The Sun [PDF]

open access: yes, 2001
Acoustic power and oscillation amplitudes of radial oscillations computed for a solar model are compared with solar seismic observations. The oscillations are assumed stochastically excited by turbulence. The numerical computations are based upon a theoretical formulation of the power going into solar like oscillation modes as proposed by Samadi et al.
arxiv   +1 more source

Enhanced Performance 3‐D Printed PLA Parts through a Photo‐Initiator Mediated UV‐Curing

open access: yesAdvanced Materials Technologies, EarlyView.
This solvent‐free method enhances 3‐D printed PLA parts by incorporating photo‐initiators during fabrication, followed by up to 3 min UV treatment. This process improves PLA's mechanical properties, including a 64% increase in tensile strength, while addressing weak interlayer bonding and outdoor sensitivity.
Dylan Jubinville, Tizazu H. Mekonnen
wiley   +1 more source

Thermo‐Optical Analysis of Surface‐ and Volume‐Additivated Polymer Powders for Near‐Infrared Laser Powder Bed Fusion

open access: yesAdvanced Photonics Research, EarlyView.
Precipitated PA11 powders for laser powder bed fusion are additivated with small amounts of carbon black nanoparticles on and in the particles. The position of the nanoparticles has a strong impact on dispersion, crystallization, and thermal oxidation.
Alexander Sommereyns   +4 more
wiley   +1 more source

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