Results 91 to 100 of about 1,413,233 (284)

Poly(Alkoxythiophene) Rod‐Coil Block Copolymers for Organic Electrochemical Transistors

Advanced Materials, EarlyView.
We present the first synthesis of poly(3‐alkoxythiophene) rod‐coil block copolymers as a new architecture for OMIECs. Incorporating PEG and PLLA coils can enhance device performance beyond the homopolymer. The figure‐of‐merit depends uniquely on coil length.
Junfu Tian, Wentao Shan, Rachael Found, Paola Mantegazza, Francesco Leoni, Andreas W. Erhardt, Yuyun Yao, Matus Stredansky, Arianna Magni, Adam Marks, Elena Chulanova, Zeinab Hamid, Yueying Huang, Wanpeng Lu, Xian'e Li, Baopu Zhang, Qingpei Wan, Christina Kousseff, Matilde Concilio, Ruth Theresia Arwani, Caroline A. Ross, Sahika Inal, Giovanni Costantini, Iain McCulloch   +23 more
wiley   +1 more source

Coating‐Free Nanoscratching for Liquid‐Crystal Alignment on PCB‐Compatible Millimeter‐Wave Reflective Unit Cells

Advanced Materials Technologies, EarlyView.
Direct nanoscratching with a 500 nm diamond lapping film creates groove‐guided liquid‐crystal alignment interfaces on PCB‐compatible Cu‐patterned RF substrates within minutes, eliminating polymer coating and high‐temperature baking. The coating‐free process enables optical/molecular alignment validation and voltage‐programmable 28 GHz reflection‐phase ...
Junseok Ma, Ga‐Yeong Park, Geunjung Lee, Hyo‐Won Lee, Jong‐Won Yu, Dong Ki Yoon   +5 more
wiley   +1 more source

Ultrathin and Flexible Organic Light‐Addressable Potentiometric Sensors

Advanced Materials Technologies, EarlyView.
The first ultrathin, fully organic, and flexible light‐addressable potentiometric sensor (LAPS) is demonstrated. With a thickness of only 2.3–2.9 µm, this standalone film offers sensitivity to electrolyte potential and stable performance for over 170 days.
Ami Ichikawa, Yudai Hemmi, Yuanyuan Guo, Georgios Bairaktaris, Carl Frederik Werner, Tomohiko Murayama, Hiroyuki Matsui   +6 more
wiley   +1 more source

Accurate Analysis of Practical 3D Periodic Leaky-Wave Patch Antennas

International Journal of Antennas and Propagation, 2008
This paper presents a new analysis method based on the finite integral technique (FIT) of practical three-dimensional leaky-wave antennas comprised of a finite number of patches arranged in arrays.
Mohammad R. Zunoubi, Hassan A. Kalhor
doaj   +1 more source

Planar leaky-wave antenna at 6GHz

Procedia Manufacturing, 2018
Abstract This paper presents a leaky-wave antenna, which operates at the frequency of 6 GHz. The proposed structure bases on a series of resonant patch antennas, which is connected by micro strip lines to have an antenna array by using the same element. The simulation gives good results, (the reflection, coefficient, gain and the isolation).
Hicham Aziz, Mahmoud Moubadir, Naima Amar Touhami, Abdelkrim Farkhsi   +3 more
openaire   +1 more source

Programmable Pneumatic Actuator System for a Bioinspired Artificial Colon

Advanced Materials Technologies, EarlyView.
A modular soft robotic colon simulator driven by programmable pneumatic actuation is developed to mimic physiological and pathological‐like motility patterns of the large intestine. Finite element–guided design and distributed control enable anatomically realistic deformation for peristalsis, segmentation, and mass movements, supporting capsule ...
Andrew Bickerdike, Bo Tian, Xizheng Fang, Zepeng Wang, Yang Liu, Lucy Adams, Shyam Prasad   +6 more
wiley   +1 more source

Design-flow of Fabry-Perot cavity leaky-wave antennas based on homogenized metasurfaces

, 2019
In this work, a design flow for leaky-wave antennas based on metasurfaces is proposed. In particular, the possibility to extract the surface impedance of partially reflecting surfaces (PRS) for which homogenization formulas are not yet available in the ...
Zografopoulos D. C., Galli A., Beccherelli R., BECCHERELLI, Romeo, Fuscaldo W., Burghignoli P., Tofani S., Baccarelli P.   +7 more
core   +1 more source

A Circularly Polarised Zero Beam‐Squinting Leaky‐Wave Antenna With Increased Gain Using NRI‐TL Metamaterials

IET Microwaves, Antennas & Propagation
The theory, design and experimental validation of a circularly polarised (CP) metamaterial fixed‐beam leaky‐wave antenna (LWA) with zero beam‐squinting (ZBS) is presented in this paper.
Kyriakos Neophytou, Kypros M. Kossifos, Marco A. Antoniades   +2 more
doaj   +1 more source

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

Advanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich, Florian Hartmann, Herbert Shea   +2 more
wiley   +1 more source

True-Time-Delay Metasurface Assisted Broadband and Planarized Resonant Cavity Antenna

IEEE Open Journal of Antennas and Propagation
Resonant cavity antennas (RCAs) produce reasonably high gains (15-20 dBi) with thin form factors, and find strong applications in wireless communication.
Tayyab A. Khan, Alex M. H. Wong
doaj   +1 more source