Results 71 to 80 of about 1,318,827 (204)

Collision Avoidance in Wireless Powered Sensor Networks with Backscatter Communications

, 2017
Wireless powered communications is a promising technology for next-generation low-powered sensor networks such as the Internet of Things. This paper deals with backscatter communications in sensor networks, an ideal technology for low-powered battery ...
Constantinos Psomas, Ioannis Krikidis, Psomas, Constantinos, Krikidis, Ioannis   +3 more
core   +1 more source

Link Budget Validation for Backscatter-Radio System in Sub-1GHz [PDF]

, 2019
Ambient backscatter communications system (ABCS) has recently been introduced as a cutting edge technology in which devices communicate in wireless mode by exploiting ambient radio frequency (RF) signals instead of actively generating them.
Sheikh, Muhammad Usman, Badihi, Behnam, Liljemark, Aleksi, Lietzen, Jari, Jantti, Riku, Behnam Badihi, Aleksi Liljemark, Muhammad Usman Sheikh, Jari Lietzen, Riku Jantti   +9 more
core   +1 more source

Intelligent Distributed Optical Fiber Sensing in Transportation Infrastructures: Research Progress, Applications, and Challenges

Advanced Photonics Research, Volume 7, Issue 10, October 2026.
Distributed optical fiber sensing (DOFS) is reviewed as a transformative technology for intelligent monitoring of transportation infrastructures. Advances in sensing fibers, cable design, and data analytics are summarized alongside representative field applications.
Xin Gui, Fanhao Zeng, Yunchuan Zhang, Yiming Wang, Jiaqi Wang, Changjia Wang, Xuelei Fu, Sheng Li, Fang Liu, Lina Yue, Jinpeng Jiang, Zhengying Li   +11 more
wiley   +1 more source

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

Advanced Science, Volume 13, Issue 58, 19 October 2026.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang, Xing Yang, Liping Liu, Yang Peng, Yangyang Wang, Hualiang Lv   +5 more
wiley   +1 more source

Establishment and Development of Backscatter Communications: The Battery-Free Era

, 2021
This study investigated the establishment and development of backscatter communications in the future Internet of Things applications. It presents an in-depth analysis of emerging technologies.
Mahyar Nemati (14156805)
core  

Surface Characterization of Magnesium Alloy Machined by Wire Electrical Discharge Machining

Applied Research, Volume 5, Issue 5, October 2026.
WEDM parameters significantly influence the surface quality, machining efficiency, and microstructure of AZ31 magnesium alloy. Lower discharge energy produced a smoother surface, shorter machining time, and reduced voids and microcracks, demonstrating improved surface integrity and machining performance.
Muhammad Syafiq Iskandar Rosni, Muhammad Al'Hapis Abdul Razak, Farooq Azam, Turnad Lenggo Ginta, Muizuddin Azka, Sadaqat Ali, Haizum Aimi Zaharin, Abdul' Azeez A. Aliyu, Ahamad Zaki Mohamed Noor   +8 more
wiley   +1 more source

Polarization Conversion -based Ambient Backscatter System

, 2020
In Ambient Backscatter Communications (AmBC), a backscatter device communicates by modulating the ambient radio frequency (RF) signal impinging at its antenna.
Jäntti, R., Lietzén, J., Liljemark, A., Viikari, V., Duan, R.   +4 more
core   +1 more source

The influence of magnetospheric substorms on SuperDARN radar backscatter [PDF]

, 2008
The SuperDARN ionospheric radar network is a leading tool for investigating the near-Earth space environment. However, reductions in ionospheric backscatter have been reported during magnetospheric substorms.
Wild, James A., Grocott, A.
core   +3 more sources

Observation of Shortwave Fadeout Events Using Chinese Dual Auroral Radar Network (CN‐DARN) During the Severe Solar Storm in May 2024

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Shortwave fadeout (SWF) is a typical dayside high‐frequency radio disturbance caused by solar flare‐induced ionospheric ionization enhancement. Using newly built Chinese Dual Auroral Radar Network (CN‐DARN) observations, we investigate two X‐flare‐driven SWFs during the May 2024 geomagnetic superstorm (SYM‐H = −518 nT), on 10 May (pre‐storm ...
Junjie Tong, Jiaojiao Zhang, Hang Li, Wei Wang, Bianlong Zhao, Wenqian Chen, Xiang Deng, Ailan Lan, Jingye Yan, Chi Wang   +9 more
wiley   +1 more source

Integrated Sensing and Communication in a Fiber‐Wireless System With Time‐Phase Synthesis Dimension Waveform

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
A unified fiber‐wireless integrated sensing and communication system is enabled by a single microwave photonic platform with a time‐phase synthesis dimension waveform. This architecture simultaneously delivers high‐speed data transmission, high‐precision wireless ranging, and accurate fiber diagnostics over a high‐power analog radio‐over‐fiber link ...
Shengkun Chen, Zhenglin Tang, Weiqiang Lyu, Mengke Wang, Yaowen Zhang, Zhen Zeng, Lingjie Zhang, Heping Li, Zhiyao Zhang, Yong Liu   +9 more
wiley   +1 more source