Results 41 to 50 of about 3,683 (185)

Path Planning of a Mobile Robot Based on the Improved RRT Algorithm

Applied Sciences, 2023
RRT (rapidly exploring random tree) is a sampling-based planning algorithm that has been widely used due to its simple structure and fast speed. However, the RRT algorithm has several issues such as low planning efficiency, high randomness, and poor path
Xiangjie Li, Yala Tong
doaj   +1 more source

A Two‐Stage Optimization Approach for Selecting Electric‐Flight Airports

Networks, EarlyView.
ABSTRACT The decarbonization of short‐haul air transport has gained increasing attention, with electric aircraft emerging as a promising alternative to conventional short‐haul aviation. However, given the substantial investment anticipated for the necessary infrastructure, a strategic and globally coordinated selection of airports is imperative.
Imke Joormann, Frederic Kroner, Andreas M. Tillmann   +2 more
wiley   +1 more source

Research on optimal emergency evacuation path for mine water inrush based on dynamic D-K algorithm

Meikuang Anquan
After the occurrence of mine water inrush, choosing the appropriate emergency evacuation path is very important to reduce the casualty and the mine accident level.
Biao XIE, Dengkui ZHU, Baichen LI, Qianru LEI, Jingjing YU, Jiaqi HU, Xinghua ZHANG   +6 more
doaj   +1 more source

Hunting Strategies and Game Exploitation Organization in the Magdalenian: An Integrated Approach Based on Mortality Profiles and Stable Isotopes at Chaves Cave (Huesca, Spain)

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Understanding hunting strategies in Upper Paleolithic contexts remains challenging due to the complex relationships between prey behavior, environmental conditions, and human decision‐making. Addressing these dynamics requires integrating archeozoological, geospatial, and geochemical proxies capable of capturing demographic patterns, landscape
Alejandro Sierra, Marie Balasse, Luis Jiménez, Rafael Domingo, Lourdes Montes, Denis Fiorillo, Pilar Utrilla   +6 more
wiley   +1 more source

PENERAPAN ALGORITMA DIJKSTRA PADA APLIKASI JASA TRANSPORTASI ONLINE DI KOTA MEDAN

Al-Ulum, 2022
This study aims to determine the shortest route in the application of online transportation services which is the main attraction for entrepreneurs who want to start looking for their fortune in technology and transportation, given the enormous ...
abdul alfattah hidayah
doaj   +1 more source

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, EarlyView.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

Information-Aware Secure Routing in Wireless Sensor Networks

Sensors, 2019
Secure routing is crucial for wireless sensor networks (WSNs) because they are vulnerable to various attacks. In this paper, we propose a new secure routing protocol for WSNs in the presence of malicious nodes.
Qiong Shi, Li Qin, Yinghua Ding, Boli Xie, Jiajie Zheng, Lipeng Song   +5 more
doaj   +1 more source

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

Journal of Field Robotics, EarlyView.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini, Lorenzo Guerrini, Marco Fontanelli, Lucia Bortolini   +3 more
wiley   +1 more source

Secured Wireless Communications Using Multiple Active and Passive Intelligent Reflecting Surfaces

IEEE Open Journal of the Communications Society
This paper presents a novel approach to secure wireless communications by integrating multiple Active and Passive Intelligent Reflecting Surfaces (MAMP-IRSs).
Apichart Nutchanat, Kampol Woradit, Paskorn Champrasert   +2 more
doaj   +1 more source

Path‐Based Deep Reinforcement Learning for On‐Board Routing in Satellite Constellation Networks

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Efficient usage of available network resources is a crucial factor for broadband services in interconnected satellite constellations. To meet required quality of service standards under heavy network loads, it is essential to optimize traffic distribution among the intersatellite links. To address this challenge, we propose an adaptive traffic
Manuel M. H. Roth, Thomas Jerkovits, Anupama Hegde, Thomas Delamotte, Andreas Knopp   +4 more
wiley   +1 more source