Results 131 to 140 of about 332,498 (295)

Direct‐Ink‐Writing Printed Stretchable Eutectic Gallium–Indium Antenna for Robust Wireless Communication

Advanced Science, EarlyView.
In summary, a universal EGaIn‐based DIW printing strategy is presented for fabricating wideband stretchable antennas. The printed antenna achieves an operating bandwidth of 3.75–8.21 GHz (fractional bandwidth: 75%), a peak gain of 1.8 dB and a radiation efficiency of 76.6%, surpassing state‐of‐the‐art stretchable antennas. More importantly, the antenna
Xiangyu Guo, Yufei Liu, Zhizhou Zhou, Haotian Peng, Yerun Gao, Ming Shao, Yu Yu   +6 more
wiley   +1 more source

Rapid Blood Clot Removal via Remote Delamination and Magnetization of Clot Debris

Advanced Science, EarlyView.
A programmable colloidal microswarm is developed to quickly detach blood clots and enable rapid recanalization, with the detached debris functioning as a magnetic “debris‐robot” that can be efficiently propelled and retrieved via catheter suction, which could significantly save time compared to the critical “Golden 6 hours” window for ischemic stroke ...
Qinglong Wang, Ben Wang, Kai Fung Chan, Xin Song, Qianqian Wang, Fengtong Ji, Lin Su, Bonaventure Yiu Ming Ip, Ho Ko, Philip Wai Yan Chiu, Thomas Wai Hong Leung, Li Zhang   +11 more
wiley   +1 more source

Reconfigurable Intelligent Surface Assisted Railway Communications: A survey

, 2023
The number of train passengers and the demand for high data rates to handle new technologies such as video streaming and IoT technologies are continuously increasing. Therefore the exploration of millimeter waves (mmWave) band is a key technology to meet
Berbineau, Marion, Falou, Ammar El, Habib, Aline, Langlais, Charlotte   +3 more
core  

Electrically Controlled Metal‐Insulator Heterogeneous Evolution for Infrared Switch and Perfect Absorption

Advanced Science, EarlyView.
Electrically controlled optical switch and perfect absorption are achieved in the long wavelength infrared range by modulating the proton‐mediated metal‐insulator phase mixture of a single layer of SmNiO3 on an opaque sapphire substrate. Such an infrared switch is reversible and tunable over a broad temperature and wavelength range, which could shed ...
Xuefeng Cao, Jiahui Sun, Yuan Fang, Xurong Qiao, Shenghao Cai, Yuhao Qiu, Xuegang Chen, Yifei Sun, Jijie Huang, Xiangdong Ding, Jun Sun, Chenghao Wan, Zhen Zhang   +12 more
wiley   +1 more source

Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers

Advanced Science, EarlyView.
Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Min Pan, Miaomiao Liu, Jiayi Lei, Yunyi Wang, Changhong Linghu, Chris Bowen, K. Jimmy Hsia   +6 more
wiley   +1 more source

Modular Self-Reconfigurable Robot Systems [PDF]

, 2007
The field of modular self-reconfigurable robotic systems addresses the design, fabrication, motion planning, and control of autonomous kinematic machines with variable morphology. Modular self-reconfigurable systems have the promise of making significant
Chirikjian, Gregory S., Klavins, Eric, Lipson, Hod, Moll, Mark, Rus, Daniela, Salemi, Behnam, Shen, Wei-Min, Yim, Mark   +7 more
core  

2D Programmable Photodetectors Based on WSe2/h‐BN/Graphene Heterojunctions

Advanced Science, EarlyView.
A programmable non‐volatile bipolar semi‐floating gate photovoltaic photodetector is developed, enabling reversible light response switching and improved response speed. This capability facilitates the successful implementation of the device in dual‐channel optoelectronic hybrid communication, fulfilling the performance demands of high‐speed, large ...
Zhihao Wang, Jialing Jian, Zhengjin Weng, Qianqian Wu, Jian Li, Xingyu Zhou, Wei Kong, Xiang Xu, Liangliang Lin, Xiaofeng Gu, Peng Xiao, Haiyan Nan, Shaoqing Xiao   +12 more
wiley   +1 more source

Reconfigurable intelligent surface assisted resource optimization method for heterogeneous network

Tongxin xuebao, 2022
For reconfigurable intelligent surface (RIS)-assisted heterogeneous network slicing, a resource optimization method with joint resource allocation and phase shift optimization was proposed.A joint optimization problem with different objectives was ...
Xianhao SHEN, Ziling ZENG, Shaohua NIU
doaj   +2 more sources

Reconfigurable Intelligent Surface-Based Wireless Communications: Antenna Design, Prototyping, and Experimental Results [PDF]

, 2020
Linglong Dai, Bichai Wang, Min Wang, Xue Yang, Jingbo Tan, Shuangkaisheng Bi, Shenheng Xu, Fan Yang, Zhi Chen, Marco Di Renzo, Chan‐Byoung Chae, Lajos Hanzo   +11 more
openalex   +1 more source

Programmable Metamaterials with Perforated Shell Group Supporting Versatile Information Processing

Advanced Science, EarlyView.
This study proposes a novel mechanical metamaterial with high‐density memory based on multi‐stable perforated shells to realize multi‐layer information encoding, storage, decoding, and reading. The metamaterial can perform more application‐oriented tasks to process information, such as encryption and dynamic behavior regulation, which hopefully enables
Xiaoyuan Ma, Ziran Wang, Weipeng Zhang, Peng Yan   +3 more
wiley   +1 more source