Results 91 to 100 of about 416,056 (360)

Correction: Zeng et al. Research on Aviation Safety Prediction Based on Variable Selection and LSTM. Sensors 2023, 23, 41

open access: yesSensors
In the original publication [...]
Hang Zeng   +4 more
doaj   +1 more source

Simulation on design-oriented missile equipment support system under multiple disturbances

open access: yesXibei Gongye Daxue Xuebao, 2022
针对导弹装备, 尤其是新研装备或历史经验数据欠缺的装备, 在设计阶段保障方案规划不合理的问题, 提出了一种多扰动下面向设计的导弹装备保障系统仿真方法。构建了分层分块的混合递阶仿真框架, 抽象出装备保障过程中的装备类、保障类、管理类、环境类智能体, 并根据保障流程确定了这4类智能体的交互机制及信息传递链路。分析了影响装备保障决策的2类扰动, 建立了装备故障扰动和人员失误扰动模型, 采用双时钟机制实现仿真过程中的扰动注入, 并根据装备维修保障流程及智能体状态跃迁过程建立了保障系统的恢复行为模型 ...
GUO Lu, LIU Xiaodong
doaj   +1 more source

Deep learning techniques to classify agricultural crops through UAV imagery: a review

open access: yesNeural computing & applications (Print), 2022
During the last few years, Unmanned Aerial Vehicles (UAVs) technologies are widely used to improve agriculture productivity while reducing drudgery, inspection time, and crop management cost.
Abdelmalek Bouguettaya   +3 more
semanticscholar   +1 more source

A Survey of Air-to-Ground Propagation Channel Modeling for Unmanned Aerial Vehicles

open access: yes, 2018
In recent years, there has been a dramatic increase in the use of unmanned aerial vehicles (UAVs), particularly for small UAVs, due to their affordable prices, ease of availability, and ease of operability.
Aboudebra A.   +101 more
core   +1 more source

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

open access: yesAdvanced Science, EarlyView.
Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma   +4 more
wiley   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Uncertain Team Orienteering Problem With Time Windows Based on Uncertainty Theory

open access: yesIEEE Access, 2019
Uncertainty theory is a branch of mathematics for modeling indeterminacy, especially belief degrees. This paper considers an application of uncertainty theory in team orienteering problem with time windows.
Jian Wang   +4 more
doaj   +1 more source

Proofs of Control of a Quadrotor and a Ground Vehicle Manipulating an Object

open access: yes, 2018
This paper focuses on the control of a cooperative system composed of an Unmanned Aerial Vehicle (UAV) and an Unmanned Ground Vehicle (UGV) manipulating an object.
Catoire, Laurent   +2 more
core   +1 more source

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