Results 231 to 240 of about 42,935 (288)

Ultrathin S-Band Multifunctional Metamaterial with Broadband Microwave Absorption and Hydrophobic Characteristics. [PDF]

Nanomaterials (Basel)
Jin H, Pang H, Guan R, Yin S, An W, Wang C.   +5 more
europepmc   +1 more source

Optimal Transmission Performance of Quadrature Wireless Resonators at 3 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To demonstrate a method for optimizing the efficiency of wireless resonators using tailored excitation from a dual‐transmit birdcage coil (BC), and to present the design and experimental investigation of a quadrature resonator for 3 T breast MRI application.
Leila Sharipova, Dmitrii Tikhonenko, Christophe Vilmen, David Bendahan, Stefan Enoch, Redha Abdeddaim, Alena Shchelokova, Marc Dubois   +7 more
wiley   +1 more source

A Comparative Sound Intensity Method for Measuring the Increase in Sound Insulation of Small Acoustic Metamaterial Samples. [PDF]

Sensors (Basel)
Agata P, Katarzyna BM, Bartłomiej Z, Mirosława LM, Dorota M, Katarzyna D.   +5 more
europepmc   +1 more source

Chiral metamaterials

, 2016
openaire   +4 more sources

An Adaptive Metasurface for Adjustable Magnetic Resonance Imaging Enhancement at 3 T and 7 T: A Feasibility Study

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultra‐high field (≥ 7 T) and 3 T MRI suffer from B1+ inhomogeneity and signal loss. Conventional metasurfaces that mitigate B1+ inhomogeneity and improve image SNR are “fixed” in nature and designed for a single Larmor frequency. This study demonstrates the feasibility of an adaptive metasurface utilizing voltage‐controlled capacitors ...
Paul S. Jacobs, Pradnya Narvekar, Neil E. Wilson, Gabor Mizsei, Wyger Brink, John A. Detre, Mark A. Elliott, Ravinder Reddy   +7 more
wiley   +1 more source

Tribological Behavior of Additively Manufactured Dual‐Material Polymer Composites

Polymer Composites, EarlyView.
Layered architecture, tribological performance, and wear mechanisms of additively manufactured dual‐material hybrid polymer composites. ABSTRACT This study presents a novel material design approach for wear‐resistant sandwich‐structured hybrid composites fabricated using dual‐nozzle fused deposition modeling (FDM). By co‐printing commercially available
Zhiwang Li, Hang Dong, Jinqiao Liu, Li Chang   +3 more
wiley   +1 more source

An ingestible origami-inspired metamaterial for prolonged oral delivery of therapeutics. [PDF]

Nat Commun
Javid F, Babaee S, Quigley J, Kirtane A, Mazdiyasni H, Rogner J, Cleveland C, Bensel T, Soares V, Collins JE, Hess K, McDonnell S, Hayward AM, Langer R, Traverso G.   +14 more
europepmc   +1 more source

Kirigami‐Inspired Deployable Microneedle Robot With Enhanced Conformability for Targeted Oral Drug Delivery

Small, EarlyView.
We have engineered a kirigami‐inspired deployable microneedle robot (KiriBot) capable of remotely controlled attachment to target tissues for sustained drug release. KiriBot incorporates a flexible structure that enhances conformability, improves adherence to irregular tissues, and facilitates microneedle insertion.
Kun Zhou, Rujie Sun, Yuyang Zuo, David J. Peeler, Jonathan Yeow, Ruoxiao Xie, Junliang Lin, Yiming Ma, Yue Shao, Yuanxiong Cao, Zhengkun Chen, Molly M. Stevens   +11 more
wiley   +1 more source

Metamaterial-Inspired Dual-Band Flexible Textile Antenna Using Wool-Felt Substrate for Body-Centric Wireless Electronics. [PDF]

ACS Omega
Douhi S, El Achaby M, Zakaria Z, Al-Gburi AJA, Eddiai A.   +4 more
europepmc   +1 more source

Perforation Enhances Sound Insulation in Plate Lattice Metamaterials

Small, EarlyView.
Herein, perforations are engineered into face‐centered cubic plate lattice metamaterials to convert normally detrimental openings into acoustically active features. Experiments, finite‐element analyses, and a reduced‐order transfer‐matrix model show that selected perforation geometries activate Helmholtz‐like and cavity‐mediated resonances, enhancing ...
Jing Heng Tan, Chenxu Liu, Zhendong Li, Xinwei Li   +3 more
wiley   +1 more source