Results 51 to 60 of about 71,554 (285)

Development of a bio-inspired vision system for mobile micro-robots [PDF]

, 2014
In this paper, we present a new bio-inspired vision system for mobile micro-robots. The processing method takes inspiration from vision of locusts in detecting the fast approaching objects.
Arvin, Farshad, Hu, Cheng, Yue, Shigang
core   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

COLREGs-Compliant Unmanned Surface Vehicles Collision Avoidance Based on Multi-Objective Genetic Algorithm

IEEE Access, 2020
Autonomous ships or Unmanned Surface Vehicles (USV) collision avoidance and path planning problems among multi-vessels are investigated in this paper. Firstly, a modified fuzzy dynamic risk of collision model based on time and space collision risk index ...
Jun Ning, Hanmin Chen, Tieshan Li, Wei Li, Chunze Li   +4 more
doaj   +1 more source

Autonomous Obstacle Avoidance in Crowded Ocean Environment Based on COLREGs and POND

Journal of Marine Science and Engineering, 2023
In crowded waters with unknown obstacle motion information, traditional methods often fail to ensure safe and autonomous collision avoidance. To address the challenges of information acquisition and decision delay, this study proposes an optimized ...
Xiao Peng, Fenglei Han, Guihua Xia, Wangyuan Zhao, Yiming Zhao   +4 more
doaj   +1 more source

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source

An Obstacle Avoidance Strategy for AUV Based on State-Tracking Collision Detection and Improved Artificial Potential Field

Journal of Marine Science and Engineering
This paper proposes a fusion algorithm based on state-tracking collision detection and the simulated annealing potential field (SCD-SAPF) to address the challenges of obstacle avoidance for autonomous underwater vehicles (AUVs) in dynamic environments ...
Yueming Li, Yuhao Ma, Jian Cao, Changyi Yin, Xiangyi Ma   +4 more
doaj   +1 more source

Benchmarking Collision Avoidance Schemes for Dynamic Environments

, 2009
This paper evaluates and compare three state-of-the-art collision avoidance schemes designed to operate in dynamic environments. The first one is an extension of the popular Dynamic Window approach; it is henceforth called TVDW which stands for Time-Varying Dynamic Window.
Martinez-Gomez, Luis, Fraichard, Thierry
openaire   +2 more sources

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Research on Dynamic Collision Avoidance for UGVs Using the Fusion of VO and APF Algorithms

IEEE Access
Unmanned Ground Vehicles (UGVs), with their excellent maneuverability, have been widely utilized in various areas, including ground search and rescue, urban logistics, and public transportation.
Feng Xiong, Youbing Feng, Litao Cai
doaj   +1 more source

Dynamic Collision and Deadlock Avoidance for Multiple Robotic Manipulators

IEEE Access, 2022
A flexible operation of multiple robotic manipulators operating in a dynamic environment requires online trajectory planning to ensure collision-free trajectories. In this work, we propose a real-time capable motion control algorithm, based on nonlinear model predictive control, which accounts for static and dynamic obstacles. The proposed algorithm is
Nigora Gafur, Gajanan Kanagalingam, Achim Wagner, Martin Ruskowski   +3 more
openaire   +3 more sources