Results 111 to 120 of about 15,655 (316)

Earth’s electromagnetic field by observations in Buryatia

open access: yesE3S Web of Conferences, 2016
The data obtained by the World Wide Lightning Location Network (WWLLN) in the territory of Zabaykal’e are compared with the data received by the equipment for observations of Earth’s natural pulse electromagnetic field installed in Buryatia.
Drugin Gennady   +4 more
doaj   +1 more source

Modelling and characterisation of antennas and propagation for body-centric wireless communication

open access: yes, 2010
PhDBody-Centric Wireless Communication (BCWC) is a central point in the development of fourth generation mobile communications. The continuous miniaturisation of sensors, in addition to the advancement in wearable electronics, embedded software ...
Sani, Andrea
core  

Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan   +9 more
wiley   +1 more source

Propagation mechanisms of radio waves over intra-chip channels with integrated antennas : frequency-domain measurements and time-domain analysis

open access: yes, 2007
The propagation mechanisms of radio waves over intra-chip channels was studied with integrated antennas for wireless chip area networks. Test vehicles were designed and fabricated on silicon wafers of both low and high resistivities, respectively, using ...
Zhang, Yue Ping, Chen, Zhiming, Sun, Mei
core   +1 more source

Designing Stable Periodic Magnetization Textures by Tailoring Anisotropies and Applying Geometrical Transformation

open access: yesAdvanced Functional Materials, EarlyView.
This work explores the possibility to design stable periodic magnetization textures by transforming a 2D film into a rolled‐up 3D architecture and back. In case of an isotropic exchange‐biased layer architecture, the magnetization encoded in the 3D state evolves into a spin‐spiral pattern with controlled periodicity after unrolling.
Aman Singh   +3 more
wiley   +1 more source

Joint analysis of low-frequency geoacoustic and deformation signals

open access: yesE3S Web of Conferences, 2018
Simultaneous monitoring of signals recorded by a three-component piezoceramic seismic receiver and by a laser strainmeter-interferometer have been carried out in Kamchatka since 2016.
Mishchenko Mikhail   +4 more
doaj   +1 more source

Low‐Profile, High‐Gain GRIN RF Lenses via Multi‐Material Vat Photopolymerization

open access: yesAdvanced Functional Materials, EarlyView.
We investigate the opportunity of leveraging multi‐material vat photopolymerization printing to manufacture intricate lenses exhibiting permittivity gradients that can increase signal gain in transmitted radiofrequency signals in the X‐ and Ku‐bands. Lenses produced with more distinct low‐loss materials (up to 5) can deliver an 18 dB signal gain with a
Lawrence Romangsuriat   +3 more
wiley   +1 more source

A Data Driven Review of In Vitro Electrical and Mechanical Stimulation for Post‐Acute Phase Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
This review examines how in vitro electrical and mechanical stimulation modulates wound healing in fibroblasts and keratinocytes. Analyzing over 560 experimental data points, we relate stimulation parameters to proliferation and migration outcomes, evaluate platform designs, and highlight the need for multi‐parameter optimization to advance targeted ...
Matthew K. Burgess   +3 more
wiley   +1 more source

Method for Detection of Forbush Effects in Cosmic Ray Flux According to Neutron Monitors Data Using Wavelet Transform

open access: yesRussian Journal of Earth Sciences
The method developed by the authors for detection of Forbush effects in cosmic ray variations based on ground data of neutron monitors is presented.
Mandrikova Oksana V.   +1 more
doaj   +1 more source

Radio Wave Propagation and WSN Deployment in Complex Utility Tunnel Environments. [PDF]

open access: yesSensors (Basel), 2020
Celaya-Echarri M   +7 more
europepmc   +1 more source

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