Results 91 to 100 of about 366,947 (316)
An AI‐Enabled All‐In‐One Visual, Proximity, and Tactile Perception Multimodal Sensor
Advanced Robotics Research, EarlyView.Targeting integrated multimodal perception of robots, an AI‐enabled all‐in‐one multimodal sensor is proposed. This sensor is capable of perceiving three types of modalities, including vision, proximity, and tactility. By toggling an ultraviolet light and adjusting the camera focus, it switches smoothly between multiple perceptual modalities, enabling ...
Menghao Pu +7 more
wiley +1 more source
Sensors, 2018 The problem of target localization in WSN (wireless sensor network) has received much attention in recent years. However, the performance of traditional localization algorithms will drastically degrade in the non-line of sight (NLOS) environment ...
Jingyu Hua +4 more
doaj +1 more source
Optical and Quantum ElectronicsAbstract Optical Wireless Communications (OWCs) are capable of handling large data rate in the Internet of Underwater Things (IoUT) at low latency to be suitable for real time image and video applications. This paper presents communication link feasibility via link budget to determine the link communication range for three types of line-of ...
M. Mokhtar Zayed +3 more
openaire +1 more source
TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms
Advanced Robotics Research, EarlyView.A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello +7 more
wiley +1 more source
Data in BriefThis study presents the “ESP32 Dataset,” a dataset of radio frequency (RF) data intended for human activity detection. This dataset comprises 10 activities carried out by 8 volunteers in three different indoor floor plan experiment setups. Line-of-sight (
Zhe-Yu Lim, Lee-Yeng Ong, Meng-Chew Leow
doaj +1 more source
Near-infrared spectropolarimetry of a delta-spot
, 2014 Sunspots harboring umbrae of both magnetic polarities within a common penumbra (delta-spots) are often but not always related to flares. We present first near-infrared (NIR) observations (Fe I 1078.3 nm and Si I 1078.6 nm spectra) obtained with the ...
Balthasar, H. +4 more
core +1 more source
Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion
Advanced Science, EarlyView.In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi +6 more
wiley +1 more source
A Practical Radiosity Method for Predicting Transmission Loss in Urban Environments
EURASIP Journal on Wireless Communications and Networking, 2004 The ability to predict transmission loss or field strength distribution is crucial for determining coverage in planning personal communication systems.
Liang Ming, Liu Qin
doaj +2 more sources
Fine-grained wireless propagation ambience sensing
International Journal of Distributed Sensor Networks, 2018 The ubiquitous wireless network infrastructure and the need of people’s indoor sensing inspire the work leveraging wireless signal into broad spectrum for indoor applications, including indoor localization, human–computer interaction, and activity ...
Nan Jing, Yu Sun, Lin Wang, Jinxin Shan
doaj +1 more source
Line of Sight and Image Motion Compensation for Step and Stare Imaging System
Applied Sciences, 2020 In recent years, applications such as marine search and rescue, border patrol, etc. require electro-optical equipment to have both high resolution and precise geographic positioning abilities.
Jihong Xiu +4 more
doaj +1 more source