Results 81 to 90 of about 441,378 (284)

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

Reln mRNA Delivery Drives Neurogenic Bone Regeneration by Orchestrating Schwann Cell‐Mediated Exosomal Trafficking

Advanced Science, EarlyView.
MSNs serve as a robust vehicle for CRISPRa‐mediated Reln induction, driving bone repair through the establishment of a neurogenic‐supportive microenvironment. ABSTRACT Neurogenic bone regeneration is essential for the effective restoration of bone tissue functionality, while the mechanisms and new strategies underlying neurogenic bone regeneration ...
Shuai Lin, Qianwen Li, Duo Liu, Mingzhao Li, Han Zhang, Liujing Chen, Yan Yu, Jiuhui Jiang, Chun Xu, Ruili Yang   +9 more
wiley   +1 more source

Steps Toward Vitrification and Banking of Coral Larvae Using Field‐Friendly Cryomesh Technology

Advanced Science, EarlyView.
Cryomesh enables a low‐tech cryopreservation method, adding a valuable option to the coral reef conservation toolkit. The approach reveals how size, toxicity, and developmental stage govern larval survival, while modeling links cooling and rewarming rates to a theoretical upper volume limit.
E. Michael Henley, Jonathan Daly, Claire Lager, Nikolas Zuchowicz, Riley Perry, Jaylyn Oka, Mariko Quinn, Zongqi Guo, Maria Victoria Grosso‐Becerra, Frania Valdez Felix, Anastazia T. Banaszak, Christian R.A. Lippens, Kristen L. Marhaver, Emily Jane Williams, Keri O'Neil, Mary Hagedorn   +15 more
wiley   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Design of Compact Beam-Steering Antennas Using a Metasurface Formed by Uniform Square Rings

IEEE Access, 2018
In this paper, we propose two designs of slot-fed metasurface antenna for beam steering applications. Both designs have the same two-layer stacked configuration consisting of either a single-slot or a double-slot radiator and a metasurface superstrate ...
Tanan Hongnara, Sarawuth Chaimool, Prayoot Akkaraekthalin, Yan Zhao   +3 more
doaj   +1 more source

Broadband Near‐Field Computational Microwave Imaging Enabled by Nonperiodic Dispersive Unit‐Cell Loading in a Passive Metasurface

Advanced Electronic Materials, EarlyView.
A compact passive engineered surface converts changes in microwave frequency into many distinct illumination patterns, allowing nearby objects to be imaged without mechanical scanning, active tuning, or a large antenna array. Operating from 18 to 28 GHz, the single‐port system uses measured field patterns to reconstruct metallic targets and distinguish
Mohammed H. Arif, Firas Slewa Dawod, Henrik Jansen, Caner Kadıoğlu, Sayan Roy, Dirk Heberling, Renato Negra   +6 more
wiley   +1 more source

Cumulative‐Stress‐Resilient Microelectromechanical Switches for Extreme Environment Applications

Advanced Electronic Materials, EarlyView.
A microelectromechanical switch combines a thermomechanically stable suspended structure with radiation‐tolerant materials to preserve operation under cumulative shock (2900 g), vibration (2000 Hz), gamma irradiation (1 Mrad), extreme temperatures (4–450 K), and proton irradiation (100 MeV, 1012 p/cm2).
So‐Young Lee, Min‐Sub Kim, Tae‐Soo Kim, Young‐Woo Jo, Yu‐Hyun Shim, Se‐Yoon Jung, Sung‐Ho Kim, Do‐Hoon Lim, Yong‐Bok Lee, Jun‐Bo Yoon   +9 more
wiley   +1 more source

Slot Array Antenna using Folded Waveguides [PDF]

, 2005
A highly compact slot array antenna using substrate integrated folded waveguides (SIFW) is proposed in this paper. The device has three key components: a non adiating SMA to standard waveguide transition, a power divider from standard waveguide to folded
Sanz-Izquierdo, Benito, Langley, Richard J., Young, Paul R., Batchelor, John C., Grigoropoulos, N.   +4 more
core  

A Magnetically Programmable Metasurface for Versatile Scattering Manipulation in the Microwave Band

Advanced Electronic Materials, EarlyView.
A magnetically programmable metasurface converts external magnetic fields into microwave phase modulation, thereby removing surface bias wiring. This mechanism achieves both retro‐reflective beam control and radar scattering suppression, offering a contactless, barrier‐penetrating solution for on‐demand electromagnetic scattering reconfiguration ...
Lihao Zhu, Nan Zhao, Yao Lu, Zhe Zheng, Jiaqi Han, Lingyun Niu, Haixia Liu, Long Li   +7 more
wiley   +1 more source

Investigation of Aperture Coupled Microstrip Antenna to Obtain a High Efficient Active Integrated Antenna by Using Class F and Inverse Class F Power Amplifiers [PDF]

, 2013
In wireless communications and radar systems, there are requirements for high efficiency, small size, low cost, and wide bandwidth of transmitter front –end usage for commercial and also military applications.
Liu, Lei
core