Results 61 to 70 of about 314,572 (210)

A Simple Approach to Select the Optimum Design Frequency for Pyramidal Horn Antenna Design

The Journal of Engineering
In this paper, a simple procedure is proposed to select the optimum design frequency for the horn antenna design by combining theory and simulation. The gain of horn antennas often increases and the aperture efficiency decreases while the frequency of ...
Abolfazl Azari, Hadi Aliakbarian
doaj   +1 more source

Thickness‐Gradient Liquid Metal Connectors for Seamless Electrophysiological Sensors

Advanced Science, EarlyView.
Thickness‐gradient liquid metal interfaces with elastomeric substrates enable seamless integration between ultrathin skin‐conformal electrodes and external interconnects. The mechanically compliant connector reduces interfacial mismatch and supports stable ECG/EMG monitoring under bending and motion.
Jinyoung Kim, Jaejun Lee, Christopher E. Tabor, Vladimir V. Tsukruk   +3 more
wiley   +1 more source

Synthesis of Ladder and Flexible Polysulfonimides Directly From Anionic Monomers: Investigating Structure–Property Convergence in Succinonitrile–Polymer Electrolyte Blends

Angewandte Chemie, EarlyView.
Direct synthesis of sulfonimide‐based polymers of intrinsic microporosity enables comparison with compositionally similar flexible analogs. Incorporation of a common pore‐filling transport medium drives these fundamentally different polymer architectures toward similar bulk conductivity and mechanical properties while revealing distinct microscopic ion‐
Abraham Herzog‐Arbeitman, Pablo Leon, Benedikt S. Schreib, KyuJung Jun, Jurgis Ruza, Vanesa Munoz Perales, Yang Shao‐Horn, Rafael Gomez‐Bombarelli, Jeremiah A. Johnson   +8 more
wiley   +2 more sources

Novel Planar Horn Antenna for 75/85 GHz Experimental Wireless Link [PDF]

Radioengineering, 2015
In the paper, we describe a novel H-plane horn antenna for an experi¬mental wireless link operating in frequency bands 71 to 76 GHz and 81 to 86 GHz.
J. Puskely, T. Urbanec, T. Mikulasek, Z. Raida, V. Rericha, J. Bartyzal   +5 more
doaj  

Experimental Validation of Ray-Tracing and Physical-Optics Model for Geodesic H-plane Horn Antennas

In this contribution, we provide an experimental validation of a ray-tracing and physical-optics model for geodesic horn antennas. The proposed model employs a ray-tracing technique to obtain electric fields in the horn aperture and applies the field ...
Mesa, Francisco,, Chen, Ming Zheng,, Quevedo-Teruel, Oscar,   +2 more
core   +1 more source

Restoring the radiating performances of shortened horn antennas over a broad frequency range

, 2013
"We propose a flat metamaterial-based lens to be applied to the aperture of a shortened horn antenna in order to achieve gain performances similar to the ones of the corresponding optimum horn over a broad frequency range.
D. Ramaccia, F. Bilotti, RAMACCIA, DAVIDE, BILOTTI, FILIBERTO, A. Toscano, Hrabar, Silvio, Hrabar, S., TOSCANO, ALESSANDRO, S. Hrabar   +8 more
core   +1 more source

EphB1 Receptor Blockade Augments Morphine Antinociception via Inhibiting GRK2‐Mediated µ‐Opioid Receptor Internalization

Advanced Science, EarlyView.
Administration of opioids activates ephrinB2‐EphB1 receptor signaling. Activated EphB1 receptors induce GRK2‐mediated phosphorylation of MOR at Ser375, which initiates the internalization of MOR and reduces opioid antinociception at the behavioral level. ABSTRACT Opioids are the primary treatment for severe pain in clinical practice.
Bo Peng, Xiaqing Lin, Hongyu Yao, Cheng Li, Huabao Liao, Yuexin Liu, Boxu Cao, Xue‑Jun Song   +7 more
wiley   +1 more source

Astrocytic Ketogenesis Protects Central Nervous System Injury via CPT1A Stabilization and Epigenetic Regulation

Advanced Science, EarlyView.
A distinct astrocyte subpopulation, enriched at the lesion border, drives CNS repair through enhanced ketone body metabolism. This process promotes neuronal survival and axonal sparing via CPT1A stabilization and H3K9bhb‐dependent epigenetic reprogramming, positioning astrocytic ketogenesis as a promising therapeutic target for tissue regeneration ...
Dishui Pan, Haoming Shu, Rui Gao, Yilong Ren, Wu Ye, Xuhui Ge, Yao Gu, Yufeng Zhu, Xiaokun Wang, Honglin Teng, Xuhui Zhou, Wei Liu, Yang Gao, Jianquan Zhao, Weihua Cai   +14 more
wiley   +1 more source

Horn array antenna with high aperture efficiency and suppressed grating lobes

IET Microwaves, Antennas & Propagation
In the design of horn array antennas, usually there is a challenge with the grating lobe problem and consequently quite low aperture efficiency. A new configuration for horn array antennas is presented which introduces high aperture efficiency with ...
Mohamad Hossein Anjomshoa, Seyed Ali Razavi Parizi   +1 more
doaj   +1 more source

Co‐Design Insights for Mechanically Active Flexible Printed Circuit Boards Through the CurveQuad Origami Robot

Advanced Science, EarlyView.
This paper presents the process of integrating electronics directly into the body sheet of CurveQuad, a small origami robot that can self‐fold, crawl, and steer with a single actuator. The authors design a flexible printed circuit board for the body sheet: the key challenge is to navigate how embedding electronics affects the mechanical properties and ...
Xuelin Wu, Daniel Feshbach, Satviki Vasireddy, Louis Beardell, Bao To, Yuliy Baryshnikov, Cynthia Sung   +6 more
wiley   +1 more source