Results 1 to 10 of about 535,615 (194)

High Dynamic Range Structured Illumination Microscope Based on Multiple Exposures

open access: yesFrontiers in Physics, 2021
Structured illumination microscope (SIM) can double the spatial resolution by using fringed pattern illumination. However, for samples with large intra-scene dynamic ranges, such as clustered objects, SIM fails to reconstruct high-quality images and ...
Yong Liang   +14 more
doaj   +1 more source

Improved Bidirectional RRT* Algorithm for Robot Path Planning

open access: yesSensors, 2023
In order to address the shortcomings of the traditional bidirectional RRT* algorithm, such as its high degree of randomness, low search efficiency, and the many inflection points in the planned path, we institute improvements in the following directions.
Peng Xin   +5 more
doaj   +1 more source

A Docking Mechanism Based on a Stewart Platform and Its Tracking Control Based on Information Fusion Algorithm

open access: yesSensors, 2022
Aiming at the problem of unmanned reconfiguration and docking of ground vehicles under complex working conditions, we designed a piece of docking equipment composed of an active mechanism based on a six-degree-of-freedom platform and a locking mechanism ...
Gan Zhan   +6 more
doaj   +1 more source

A comparative analysis of sleep spindle characteristics of sleep-disordered patients and normal subjects

open access: yesFrontiers in Neuroscience, 2023
Spindles differ in density, amplitude, and frequency, and these variations reflect different physiological processes. Sleep disorders are characterized by difficulty in falling asleep and maintaining sleep.
Chao Chen   +9 more
doaj   +1 more source

The Path Planning of Mobile Robot by Neural Networks and Hierarchical Reinforcement Learning

open access: yesFrontiers in Neurorobotics, 2020
Existing mobile robots cannot complete some functions. To solve these problems, which include autonomous learning in path planning, the slow convergence of path planning, and planned paths that are not smooth, it is possible to utilize neural networks to
Jinglun Yu, Yuancheng Su, Yifan Liao
doaj   +1 more source

Research on Intraoperative Organ Motion Tracking Method Based on Fusion of Inertial and Electromagnetic Navigation

open access: yesIEEE Access, 2021
The intraoperative movement of target organs is currently a key and difficult problem that restricts clinical surgery diagnosis and treatment, especially radiotherapy.
Yongde Zhang   +3 more
doaj   +1 more source

An Automated Guided Vehicle Path Planning Algorithm Based on Improved A* and Dynamic Window Approach Fusion

open access: yesApplied Sciences, 2023
Aimed at the problems of low search efficiency of the A* algorithm in global path planning, not considering the size of AGV and too many turns, and the DWA algorithm easily falling into local optimization, an AGV path planning algorithm based on improved
Tao Guo   +4 more
doaj   +1 more source

Power Grid Material Demand Forecasting Based on Pearson Feature Selection and Multi-Model Fusion

open access: yesFrontiers in Energy Research, 2022
The demand projection of power grid materials can furnish an effective support for the management of power grid materials. Due to variations in the data distribution of individual districts and diversity of materials, a single forecasting model is ...
Zhou Dai   +4 more
doaj   +1 more source

Target Association of Heterogeneous Sensors Based on Nearest-neighbor and Topology

open access: yesLeida xuebao, 2012
A new data association algorithm is proposed in this paper for heterogeneous sensors information fusion system, which consists of Radar and high-dynamic-range IR, based on joint usage of the nearest-neighbor (NN) and the topology similarity. The proposed
Yuan Ding-bo   +3 more
doaj   +1 more source

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