Results 51 to 60 of about 17,165 (264)

Monocular visual obstacle avoidance method for autonomous vehicles based on YOLOv5 in multi lane scenes

Alexandria Engineering Journal
This study explores a more effective obstacle avoidance method for autonomous driving based on the monocular vision system of YOLOv5. The study utilizes the YOLOv5 model to detect obstacles and road signs in the environment in real-time, including ...
Junhua wang, Laiquan Han, Yuan Jiang, Yongjun Qi, Khuder Altangerel   +4 more
doaj   +1 more source

Laser‐Microscribed Glass Enables Surface‐Microfluidics‐Facilitated, Affordable, Rapid Cancer Diagnosis

Advanced Functional Materials, EarlyView.
A transparent, laser‐microscribed glass platform enables cancer diagnosis within 1 h—much faster than histology, which takes days, and free from the chemical or contrast risks of MRI or CT scans. The antibody‐functionalized rough glass surface captures viable cancer cells directly from suspension, allowing instant optical readout and offering a rapid ...
Anish Pal, Snehasis Mishra, Arani Mukhopadhyay, Ilias Papailias, Atique U. Ahmed, Constantine M. Megaridis   +5 more
wiley   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

A Real-Time Reaction Obstacle Avoidance Algorithm for Autonomous Underwater Vehicles in Unknown Environments

Sensors, 2018
A novel real-time reaction obstacle avoidance algorithm (RRA) is proposed for autonomous underwater vehicles (AUVs) that must adapt to unknown complex terrains, based on forward looking sonar (FLS).
Zheping Yan, Jiyun Li, Gengshi Zhang, Yi Wu   +3 more
doaj   +1 more source

Automatic obstacle avoidance and parietal cortex [PDF]

Nature Neuroscience, 2004
The ventral visual stream is proposed to support perception, and the dorsal stream is proposed to control action. A new study of patients with posterior parietal damage shows that the dorsal stream also contributes to automatic obstacle avoidance in reaching.
Humphreys, G, Edwards, MG
openaire   +2 more sources

Facet‐Engineered S‐Scheme Heterostructure With Enhanced Active Sites for Efficient Photocatalytic Degradation of Organic Contaminants

Advanced Functional Materials, EarlyView.
The facet‐engineered ZnO/Zn3In2S6 heterostructure, dominated by {001} plane coupling, exposes abundant unsaturated Zn sites with elongated Zn─O bonds, directing photoexcited charge carriers along an S‐scheme pathway and suppressing recombination. Enhanced interfacial Zn adsorption toward bisphenol A and methylene blue further synergistically promotes ...
Yang Yang, Zisheng Du, Hongyuan Yang, Debabrata Bagchi, Ruotao Yang, Prashanth W. Menezes, Sugang Meng   +6 more
wiley   +1 more source

Dual‐Interface‐Dominant Cathode Architectures Enabling Fast Sulfur Redox and Stable Interfaces in All‐Solid‐State Li‐S Batteries

Advanced Functional Materials, EarlyView.
An optimized carbon host nanostructure enables a dual‐interface‐dominant architecture in sulfur cathodes of solid‐state Li‐S batteries by selectively forming sulfur|carbon and sulfur|solid electrolyte interfaces. This tailored interfacial configuration accelerates sulfur redox kinetics by establishing enriched Li+/e– transport networks, while ...
Zhao Yang, Yuxiao Zhang, Yihong Liu, Geng Xie, Yu Dou, Jeremy Dawkins, Lijia Liu, Yixiang Wang, Lingzi Sang, Mohsen Shakouri, Sixu Deng, Karim Zaghib, Tsun‐Kong Sham, Xia Li   +13 more
wiley   +1 more source

Design and experiment of active obstacle avoidance control system for grapevine interplant weeding based on GNSS

Smart Agricultural Technology
Traditional passive obstacle avoidance mechanical weeding strategies heavily relied on touch rods, which led to a high crop damage rate and low weeding efficiency during operations.
Hao Zhang, Zejiang Meng, Shiwei Wen, Guangyao Liu, Guangrui Hu, Jun Chen, Shuo Zhang   +6 more
doaj   +1 more source

Local Navigation: Obstacle Avoidance [PDF]

, 2017
A mobile robot navigating to a goal will encounter obstacles that must be avoided. Obstacle avoidance is presented in the context of wall following: moving around the wall of the obstacle until it no longer prevents access to the goal. Three algorithms are presented: simple wall following which fails in the presence of multiple obstacles, wall ...
Mordechai Ben-Ari, Francesco Mondada
openaire   +1 more source

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

Advanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian, Amit Sharma, Krzysztof Wieczerzak, Alexander Groetsch, Manish Jain, Nicolò Maria della Ventura, Remo Widmer, Fedor F. Klimashin, Johann Michler, Jakob Schwiedrzik, Xavier Maeder   +10 more
wiley   +1 more source