Results 51 to 60 of about 611,651 (272)
Coaxial probes with finite ground plane
Electronics Letters, 1988 The radius of the ground plane of coaxial probes commonly used for the in vivo determination of the dielectric properties of biological tissues is not necessarily large enough to assure its effect is negligible. We present a model which allows the determination of the effect of this significant source of error on the impedance of the probe.
J.D. Baños-Polglase, J.M. Rebollar
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Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite
Advanced Functional Materials, EarlyView.The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen +16 more
wiley +1 more source
Conformal Mapping Design Tools for Coaxial Couplers with Complex Cross Section [PDF]
, 2002 Numerical conformal mapping is exploited as a simple, accurate, and efficient tool for the analysis and design of coaxial waveguides and couplers of complex cross section. An implementation based on the Schwarz-Christoffel Toolbox, a public-domain MATLAB
Ferrero, Andrea Pierenrico +2 more
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Advanced Functional Materials, EarlyView.Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
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Advanced Functional Materials, EarlyView.Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding +14 more
wiley +1 more source
Influence of the electrical parameters on the ultrasonic probe impedance and the reflected pulses
Archives of Acoustics, 2014 Basing on the modified Mason's equivalent circuit of an ultrasonic transmitting-receiving probe [3], [4] the influence of compensating inductances, a coaxial cable, wire conductors and parallel resistance on the probe immitance and the reflected pulses ...
G. ŁYPACEWICZ
doaj
Advancing Human Skin Equivalents: The Crucial Role of Neurovascular Integration
Advanced Healthcare Materials, EarlyView.This review discusses the importance of integrating vascular and peripheral nerve systems into human skin equivalents (HSEs) to better recapitulate native skin physiology. Recent advances in vascularized, innervated, and neurovascularized HSEs are highlighted, together with emerging bioengineering strategies, current challenges, and future ...
Hao Wu +4 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.A core–shell electrospun nanofiber sheet provides strong adhesion and durable sealing on the wet and dynamic lung surface. The engineered fibrous architecture maintains airtight integrity and offers a potential alternative to fibrin sealants for pulmonary air leak management in thoracic surgery.
Tomohito Okubo +10 more
wiley +1 more source
A Fully Transparent Wideband Water Patch Antenna With L-Shaped Feed
IEEE Open Journal of Antennas and Propagation, 2021 A wideband and fully optically-transparent water patch antenna is proposed. Both the patch and the ground plane are made of distilled water. Different from the previous water patch antennas, this proposed design features the utilization of an L-shaped ...
Jie Sun, Kwai-Man Luk
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Investigation of a power divider using a coaxial probe array in a coaxial waveguide
IET Microwaves, Antennas & Propagation, 2007 A novel coaxial-waveguide power divider using coaxial probe array that achieved low-loss probe-to-waveguide transitions is presented. The small reflection theory of transverse electomagnetic (TEM) lines is extended to synthesise the gradual waveguide taper, and the equivalent-circuit approach is applied to analyse the coaxial probe array.
K. Song, Y. Fan, Y. Zhang
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