Results 71 to 80 of about 8,876 (268)

Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

Advanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie, Iryna Polishchuk, Franziska Tauber, Coralie Schneider, Elena Prudnikov, Alessia Calora, Silvia Milita, Simona Fermani, Mireia Alejandra Ibanez Revert, Ilaria Filippetti, Claudio Ratti, Matthias Kellermeier, Markus Rueckel, Boaz Pokroy   +13 more
wiley   +1 more source

Programmable Soft Actuator with Multi‐Responsiveness Based on Conductive MOF‐Liquid Crystal Polymer Composite

Advanced Functional Materials, EarlyView.
A sequential dual‐alignment strategy independently programs the orientation of conductive metal‐organic framework (c‐MOF) microrods and liquid crystals within a composite film. This approach creates an asymmetric bilayer structure that enables precise, multi‐responsive actuation.
Taegyun Hong, Geunho Kim, Changjae Lee, Sarang Lee, Jesse G. Park, Dong Ki Yoon   +5 more
wiley   +1 more source

A dual-band dipole array antenna with fan-beam radiation for biomedical and telecommunications applications

Results in Engineering
This study introduces a new technique for achieving dual-band functionality in a printed dipole antenna with integrated balun feeding without additional elements.
Rahim Barzegari, Changiz Ghobadi, Javad Nourinia   +2 more
doaj   +1 more source

A Triband Patch Antenna with Monopole-like and Patch-like Radiation Patterns for Multifunctional Wireless Systems

International Journal of Antennas and Propagation, 2020
A triband patch antenna with monopole-like and patch-like radiation patterns for multifunctional wireless systems is proposed. The antenna consists of a single square radiation patch with an annular slot, a ground plane, and a top-loaded metal sheet. The
Hai-Na Song, Zhao-Hui Chen, Jian-Feng Li
doaj   +1 more source

Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots

Advanced Functional Materials, EarlyView.
Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz, Ramin Yazdaanpanah, Yongfeng Guo, Pouriya Naziri, Sachin Kulkarni, Martina Mercurio, Maria Cristina Larciprete, Ilaria Fratoddi, Paul Simon, Wan‐Lu Li, Koray Aydin, Umut Aydemir   +11 more
wiley   +1 more source

Synthesis of sparse rectangular planar arrays with weight function and improved grey wolf optimization algorithm

IET Microwaves, Antennas & Propagation
The present article proposes a novel hybrid approach for addressing the synthesis problem of rectangular planar arrays under multiple constraints, through joint optimization of the weight function and the improved grey wolf optimization (IGWO) algorithm.
Kui Tao, Bin Wang, Xue Tian, Qi Tang, Guihan Xie   +4 more
doaj   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Millimeter‐wave end‐fire dual‐polarized frequency scanning antenna using LTCC technology

Electronics Letters
This letter proposes a millimeter‐wave dual‐polarized (DP) end‐fire frequency scanning antenna utilizing low temperature co‐fired ceramic (LTCC) technology.
Pengfei Yu, Changning Wei, Liguo Sun, Zhuoqiao Ji, Fan Yu, Ke Xu   +5 more
doaj   +1 more source

A Wideband End-Fire Conformal Vivaldi Antenna Array Mounted on a Dielectric Cone

International Journal of Antennas and Propagation, 2016
The characteristics of a novel antipodal Vivaldi antenna array mounted on a dielectric cone are presented. By employing antipodal Vivaldi antenna element, the antenna array shows ultrawide bandwidth and end-fire radiation characteristics. Our simulations
Zengrui Li, Xiaole Kang, Jianxun Su, Qingxin Guo, Yaoqing (Lamar) Yang, Junhong Wang   +5 more
doaj   +1 more source

Spatial modulation based on reconfigurable antennas: performance evaluation by using the prototype of a reconfigurable antenna

EURASIP Journal on Wireless Communications and Networking, 2019
In this paper, we study the performance of spatial modulation based on reconfigurable antennas. Two main contributions are provided. We introduce an analytical framework to compute the error probability, which is shown to be accurate and useful for ...
Dung Nguyen Viet, Marco Di Renzo, Vedaprabhu Basavarajappa, Beatriz Bedia Exposito, Jose Basterrechea, Dinh-Thuy Phan-Huy   +5 more
doaj   +1 more source