Results 61 to 70 of about 3,994 (304)

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

A K-Means Clustered Routing Algorithm with Location and Energy Awareness for Underwater Wireless Sensor Networks

, 2022
Data delivery in harsh underwater channels consumes a higher transmission power than that in terrestrial networks. However, due to the complexity of the underwater environment, the energy supply of the nodes in underwater wireless sensor networks is ...
Jing Xu, Luyao Li, Yang Qiu
core   +1 more source

Bamboo‐Like Whiskers‐Reinforced Bioceramics Accelerate Large Segmental Bone Regeneration via Dual Modulation of Type‐H Vessels and Osteoinduction

Advanced Science, EarlyView.
The graphical abstract image of bamboo‐like whisker‐reinforced Ca‐P bioceramics accelerating large segmental bone regeneration. ABSTRACT Regenerative repair of segmental bone defect remains a major clinical challenge. The conventional mental implants suffer from mechanical strength mismatch and long‐term foreign bodies presence.
Cong Feng, Haibo Teng, Chuyao Xu, Jiaze He, Keting Liu, Xueying Li, Kai Zhang, Xiangdong Zhu, Xiangfeng Li, Jianguo Xu, Xingdong Zhang   +10 more
wiley   +1 more source

A Real-Time, Full-Duplex System for Underwater Wireless Optical Communication: Hardware Structure and Optical Link Model

IEEE Access, 2020
Underwater wireless optical communication (UWOC) has been widely considered a supplement to traditional underwater acoustic communication. A real-time UWOC video delivery system was developed in a laboratory water tank based on a field-programmable gate ...
Jinjia Li, Bo Yang, Demao Ye, Linning Wang, Kang Fu, Jinlong Piao, Yongjin Wang   +6 more
doaj   +1 more source

The Investigation of Underwater Wireless Optical Communication Links Using the Total Reflection at the Air-Water Interface in the Presence of Waves

, 2022
With the development of underwater exploration, underwater networking is in urgent demand. At present, underwater wireless optical communication (UWOC) is primarily based on line-of-sight (LOS) communication links.
Hang Yang, Rui Chen, Zhijian Lv, Zhaojun Liu, Wenwei Zhang, Gui He, Chengfeng Qiu, Yuxin Li   +7 more
core   +1 more source

Wireless, Adaptable and Fully Implantable Battery‐powered Devices for Optical Stimulation of the Spinal Cord in Small Rodents

Advanced Science, EarlyView.
Current technologies for spinal cord optogenetic stimulation rely on external power sources and face reliability constraints in freely behaving animals. Here, a fully implantable, battery‐powered optoelectronic device is introduced, enabling operation in any selected environment with wireless recharging for months‐long stimulation.
Shahriar Shalileh, Adan Moallemi, Elham Mohseni Vadeghani, Samuel Tretjakov, Brianna Tsuyuki, Alexander Golab, Benjamin Rever, Wolfram Tetzlaff, Dena Shahriari   +8 more
wiley   +1 more source

Performance Analysis of a Dual-Hop FSO–Vertical UOWC Link for Seamless Air-to-Underwater Connectivity

IEEE Open Journal of the Communications Society
In this paper, an analytical model is proposed for a dual-hop Free Space Optical (FSO) and vertical Underwater Optical Wireless Communication (UOWC) system designed to achieve seamless connectivity between air and underwater environments.
Savidhan Shetty C S, Praveen Kumar, Ramavath Prasad Naik, G. Saravanan, G. D. Goutham Simha   +4 more
doaj   +1 more source

Engineering Neuronal Network Connectivity Through Precise and Scalable Electrical Modulation

Advanced Science, EarlyView.
This study presents a scalable all‐electrical method for precise neuronal‐circuit reconfiguration based on high‐density microelectrode arrays. By employing biologically inspired plasticity rules, targeted connectivity changes were successfully induced and quantified across diverse neuronal preparations.
Sreedhar S. Kumar, Yannaël Bossard, Rachel Sava, Tobias Gänswein, Lorenca Sadiraj, Jean‐Samuel Dupré, Manuel Schröter, J. Gray Camp, Fernando Cardes, Julian Bartram, Andreas Hierlemann   +10 more
wiley   +1 more source

TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens

Advanced Science, EarlyView.
ABSTRACT While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high‐precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual‐focus metalens capable of simultaneous multidimensional sensing.
Man Yuan, Yuqing Zhang, Wangzhe Zhou, Zhaojian Zhang, Xiaoyun He, Xinpeng Jiang, Yiyi Li, Xin He, Jiagui Wu, Yuanmu Yang, Junbo Yang   +10 more
wiley   +1 more source

Investigation of 3 dB Optical Intensity Spot Radius of Laser Beam under Scattering Underwater Channel

Sensors, 2020
An important step in the design of receiver aperture and optimal spacing of the diversity scheme for an underwater laser communication system is to accurately characterize the two-dimensional (2D) spatial distribution of laser beam intensity.
Wei Wang, Xiaoji Li, Sujan Rajbhandari, Yanlong Li   +3 more
doaj   +1 more source