Results 91 to 100 of about 33,091 (311)

Ultra-sensitive dual-band metamaterial absorber based on symmetric resonators

, 2014
Ultra sensitive metamaterial-based absorber (MA) which acts as a strong dual-band resonator is designed and constructed. The proposed model is based on symmetric ring resonator with gaps and octa-star strip (OSS) which allows maximization in the ...
Cumali Sabah, ÜNAL, EMİN, Dincer, Furkan, Emin Unal, Sabah, Cumali, KARAASLAN, MUHARREM, Muharrem Karaaslan, Furkan Dincer   +7 more
core   +1 more source

Programmable 3D Photovoltaics via Mechanically Origami‐Coded Interlocked 3D Kirigami and Nano‐Root Anchored AgNWs–In–Ga Multiphasic Alloy Conductor

Advanced Materials, EarlyView.
Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang, Jiwon Ryu, Byungsoo Kang, Injong Oh, Dae‐Hee Cho, YoungHoi Cho, Seung S. Lee, Dong Hoe Kim, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Seungjun Chung, Byoung Koun Min, Phillip Lee   +15 more
wiley   +1 more source

MICROWAVE CAD FOR MINIATURIZED RECTANGULAR PATCH ANTENNAS WITH METAMATERIAL SUBSTRATES

Radio Physics and Radio Astronomy, 2016
Purpose: Numerical experiments are made to design miniaturized microwave rectangular patch antennas with metamaterial substrates. Design/methodology/approach: The simulations for patch antennas with two different kinds of metamaterial substrates are ...
O. M. Rybin, S. M. Shulga
doaj   +1 more source

Tuning the electric resonance of a metamaterial based single-sided S-Shaped resonator

, 2014
Electric resonance of a metamaterial based single-sided S-Shaped resonator is studied in this paper. The change in effective permeability and permittivity is observed by investigating the electric and magnetic responses to the incident wave.
Cumali Sabah, Melih Karaali, Nesimoglu, Tayfun, Sabah, Cumali, Karaali, Melih, Tayfun Nesimoglu   +5 more
core   +1 more source

Optimized Ensemble Algorithm for Predicting Metamaterial Antenna Parameters

, 2022
Metamaterial Antenna is a subclass of antennas that makes use of metamaterial to improve performance. Metamaterial antennas can overcome the bandwidth constraint associated with tiny antennas. Machine learning is receiving a lot of interest in optimizing
Mirjalili, S, El-Kenawy, ESM, Ibrahim, A, Zhang, YD, Elnazer, S, Zaki, RM   +5 more
core   +1 more source

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

Advanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar, Carlos Alejandro Jimenez‐Rodriguez, Railia Biktimirova, Ilka Hermes, Thomas Kurth, My Duyen Pham, Mikhail Tsurkan, Jens Friedrichs, Francis L. C. Morgan, Hans Kleemann, Olga Guskova, Uwe Freudenberg, Peter Fratzl, Carsten Werner, Christoph Tondera, Ivan R. Minev   +15 more
wiley   +1 more source

Cylindrical resonator filled with four alternating sectors of DPS and DNG materials [PDF]

, 2013
A circular cylindrical metallic resonator with four alternating sectors of DPS and DNG materials is analyzed, in the frequency domain. The two materials are linear, lossless, homogeneous, and anti-isorefractive to each other.
Graglia, Roberto, Uslenghi, P.L.E., V. G. Daniele, R. D. Graglia, G. Lombardi, Lombardi, Guido, Daniele, Vito, P. L. E. Uslenghi   +7 more
core   +1 more source

Programmable Stepwise Heteroepitaxial Growth of Colloidal Crystals With Different Phases

Advanced Materials, EarlyView.
Stepwise heteroepitaxial growth is adapted to colloidal crystal engineering with DNA, enabling face‐centered cubic (fcc) facets to grow on body‐centered cubic (bcc) crystals with 110 facets. This approach tolerates large lattice mismatches, extending heteroepitaxy beyond the limits of conventional atomic systems.
Xiaowei Liu, Yuanwei Li, Ramin Yazdaanpanah, Ye Zhang, Rachel R. Chan, Xiaobing Hu, Yiming Yang, Vinayak P. Dravid, Koray Aydin, Chad A. Mirkin   +9 more
wiley   +1 more source

A multi-materials 3D-printed continuous conductive fibre-based metamaterial for broadband microwave absorption

Virtual and Physical Prototyping
Electromagnetic pollution and military stealth technique have raised tremendous interest in high-performance microwave-absorbing structures. However, an ultra-broadband absorbing functional structure is still in urgent demand.
Tongtong Zhang, Dichen Li, Zhen Yang, Yubing Duan, Ningyu Zhang, Ling Wang, Qingxuan Liang   +6 more
doaj   +1 more source

Actively switchable terahertz metamaterial

Results in Physics, 2019
We present four designs of actively switchable terahertz metamaterials (ASTMs) to explore their extraordinary optical characteristics. They are denoted as ASTM_1, ASTM_2, ASTM_3, and ASTM_4, respectively.
Fangyuan Lu, Huiliang Ou, Yuhang Liao, Fengdi Zhu, Yu-Sheng Lin   +4 more
doaj   +1 more source