Results 51 to 60 of about 119,313 (249)
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
A Wearable Brain–Computer Interface for Mitigating Car Sickness via Attention Shifting
Advanced Science, EarlyView.Car sickness poses a major challenge in vehicular travel, yet effective nonpharmacological solutions are scarce. We developed a wearable, closed‐loop mindfulness BCI that uses real‐time EEG‐based neurofeedback to shift attention away from motion‐induced discomfort. Validated in real‐car experiments involving >100$>100$ susceptible individuals, over 83%
Jiawei Zhu +14 more
wiley +1 more source
A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation
Advanced Science, EarlyView.A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu +7 more
wiley +1 more source
Self-securing ad hoc wireless networks [PDF]
Proceedings ISCC 2002 Seventh International Symposium on Computers and Communications, 2003 Mobile ad hoc networking offers convenient infrastructureless communication over the shared wireless channel. However, the nature of ad hoc networks makes them vulnerable to security attacks. Examples of such attacks include passive eavesdropping over the wireless channel, denial of service attacks by malicious nodes and attacks from compromised nodes ...
null Haiyun Luo +4 more
openaire +1 more source
Multimodal Layer‐Crossing Interrogation of Brain Circuits Enabled by Microfluidic Axialtrodes
Advanced Science, EarlyView.The study introduces a flexible microfluidic axialtrode that integrates optical, electrical, and chemical modalities within a single polymer fiber. By redistributing electrodes and fluidic channels along the fiber axis via angled cleaving, it enables simultaneous optogenetic stimulation, electrophysiological recording, and drug delivery across brain ...
Kunyang Sui +8 more
wiley +1 more source
Tongxin xuebao, 2008 In order to guarantee the QoS for wireless ad hoc network,the QoS deterministic upper bounds need to be ac-curately calculated.The data flow entering the node was regulated by leaky bucket,and the node provided rate-latency service for the flow.The node ...
LI Qing-hua1 +4 more
doaj +2 more sources
Modelling and Simulating Access Control in Wireless Ad-Hoc Networks
Fountain Journal of Natural and Applied Sciences (FUJNAS), 2016 There has been a great increase in the use of wireless networks over the years; Mobile Ad hoc Network is an example of such wireless network. It functions without any central administration and the network is made up of a collection of nodes within a ...
N. A. Azeez, A. E. Otudor
doaj +3 more sources
An Extension Scheme for Distribution Communication Network Combined with Wireless Ad Hoc Network
Gong-kuang zidonghua, 2012 In allusion to problem of blind area of distribution communication network, the paper proposed an extension scheme for distribution communication network combined with wireless ad hoc network.
NIE Wei-feng, YU Yun, HE Qi
doaj
Mobile ad hoc wireless networks
Journal of Communications and Networks, 2004 As the name “ad hoc” indicates, an ad hoc network is a wireless network designed to satisfy a “special purpose” application, often of short duration. An ad hoc network must be deployed rapidly and is frequently reconfigured to adjust to changes. The temporary nature and the high rate of change set the ad hoc network apart from other more permanent ...
Mario Gerla +4 more
openaire +1 more source
Adapting BitTorrent to Wireless Ad Hoc Networks [PDF]
, 2008 BitTorrent is one of the Internet''s most efficient content distribution protocols. It is known to perform very well over the wired Internet where end-to-end performance is almost guaranteed. However, in wireless ad hoc networks, many constraints appear as the scarcity of resources and their shared nature, which make running BitTorrent in such an ...
Sbai, Mohamed Karim +4 more
openaire +2 more sources