Results 31 to 40 of about 73,265 (267)

Time cooperative path planning for unmanned marine system

Zhongguo Jianchuan Yanjiu, 2022
ObjectiveIn order to solve the problem of time cooperative path planning for unmanned marine system (UMS) in complex environments, we propose a cooperative path planning method based on a differential evolution (DE) algorithm.
Fengchuan YIN, Xiaolong LIANG, Hao TAO, Yueqi HOU, Duo QI, Xianning WU   +5 more
doaj   +1 more source

Air traffic complexity in future Air Traffic Management systems

Journal of Aerospace Operations, 2012
In this paper we study the issue of characterizing the complexity of air traffic to support Air Traffic Management (ATM) operations. We discuss, in particular, the features of a complexity metric that are relevant for application to future ATM systems where part of the responsibility for separation assurance and trajectory management operations is ...
PRANDINI, MARIA, V. Putta, J. Hu
openaire   +2 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Clustering Method of Large-Scale Battlefield Airspace Based on Multi A * in Airspace Grid System

Applied Sciences, 2022
Aiming at the problem of the wide range and great difficulty in the future of battlefield airspace control, based on the unique advantages of an airspace grid system in an airspace grid representation and time–space binary computing, this paper designs a
Ming Cai, Lujun Wan, Zhiqiang Jiao, Maolong Lv, Zhizhou Gao, Duo Qi   +5 more
doaj   +1 more source

Fusogenic RNA Nanomodules for Fusion‐Mediated and Multiplexed siRNA Delivery

Advanced Functional Materials, EarlyView.
A fusogenic lipid‐layered RNA nanomodules (L‐CRAMs) enable high‐capacity and long‐lasting siRNA delivery through membrane fusion. These nanomodules carry exceptionally large siRNA payloads, avoid conventional endosomal uptake, and release multiple functional siRNAs through Dicer‐mediated processing.
Sunghyun Moon, Iksoo Jang, Taehyeon Kim, Nayoung Yoon, Kyuha Yum, Jong Bum Lee   +5 more
wiley   +1 more source

Research on Aircraft Turbulence Early Warning Technology Driven by Ensemble Kalman Filter and Multiscale Information

Journal of Advanced Transportation
Flight turbulence poses a severe threat to aviation safety, and achieving its effective early warning is a critical challenge to be addressed. To overcome the limitations of traditional methods reliant on single information sources or advanced remote ...
Hongyong Wang, Xin Yan, Kenan Li, Ruiying Wen   +3 more
doaj   +1 more source

Exploring the Use of Invalid Action Masking in Reinforcement Learning: A Comparative Study of On-Policy and Off-Policy Algorithms in Real-Time Strategy Games

Applied Sciences, 2023
Invalid action masking is a practical technique in deep reinforcement learning to prevent agents from taking invalid actions. Existing approaches rely on action masking during policy training and utilization.
Yueqi Hou, Xiaolong Liang, Jiaqiang Zhang, Qisong Yang, Aiwu Yang, Ning Wang   +5 more
doaj   +1 more source

A 3D Human Neuron‐on‐Chip Platform to Monitor Neuronal Injury Responses

Advanced Healthcare Materials, EarlyView.
This study presents a novel 3D Neuron‐on‐Chip model that can maintain human PSC‐derived excitatory prefrontal cortex neurons in 3D hydrogels and can be used to monitor neuronal injury responses over time. Results show injury‐induced acute neuronal excitotoxicity, declining neuronal connectivity, and the activation of a neurodegenerative, SASP‐like ...
Ruiping Tang, Charles‐Francois Latchoumane, Avi Chopra, Md Marzan Sarkar, Chunki Kim, Nathan Gonsalves, Hsueh‐Fu Wu, John C. Sentmanat, Alan Liu, Isha Mhatre‐Winters, Aditya Mishra, Andrei G. Fedorov, Jay M. Patel, Nadja Zeltner, Steven L. Stice, Jason R. Richardson, Lohitash Karumbaiah   +16 more
wiley   +1 more source

A Multiaircraft Path Distributive Planning Method via Autonomous Self-Separation Operation Mode

Journal of Advanced Transportation
In this paper, a multiaircraft path planning method framework for autonomous operation and distributed decision-making was proposed. The core content of this framework consists of two parts: single-aircraft path planning and multiaircraft path ...
Ruiying Wen, Jiaxing He, Yupeng Guo, Hongyong Wang   +3 more
doaj   +1 more source

Optimal Sensor Deployment and Velocity Configuration With Hybrid TDOA and FDOA Measurements

IEEE Access, 2019
Source localization based on the hybrid time-difference-of-arrival (TDOA) and frequency-difference-of-arrival (FDOA) measurements from distributed sensors is an essential problem in wireless sensor networks (WSNs).
Weijia Wang, Peng Bai, Yubing Wang, Xiaolong Liang, Jiaqiang Zhang   +4 more
doaj   +1 more source