Results 31 to 40 of about 199,767 (264)

NPP Post-Accident Monitoring System Based on Unmanned Aircraft Vehicle: Concept, Design Principles

, 2017
The paper presents a concept of designing the post-accident system for monitoring the equipment and territory of nuclear power plant after a severe accident based on unmanned aircraft vehicle (UAVs).
A. Sachenko, V. Kochan, V. Kharchenko, M. Yastrebenetsky, H. Fesenko, M. Yanovsky   +5 more
semanticscholar   +1 more source

Conceptual Design of a Hybrid Hydrogen Fuel Cell/Battery Blended-Wing-Body Unmanned Aerial Vehicle—An Overview

Aerospace, 2022
The manuscript presents the conceptual design phase of an unmanned aerial vehicle, with the objective of a systems approach towards the integration of a hydrogen fuel-cell system and Li-ion batteries into an aerodynamically efficient platform ...
Siwat Suewatanakul, Alessandro Porcarelli, A. Olsson, Henrik Grimler, Ariel Chiche, Raffaello Mariani, G. Lindbergh   +6 more
semanticscholar   +1 more source

Effect of Aerodynamic Configuration Parameters on Lateral-Directional Stability of Double-Swept Flying Wing Aircraft

Journal of Aerospace Technology and Management, 2019
Poor lateral-directional stability due to the absence of vertical stabilizer is a great risk to the aircraft with a flying wing layout. In this paper, an unmanned aerial vehicle with this kind of configuration is chosen as the research object.
Ya Lin Pan, Jun Huang
doaj   +3 more sources

The use of Unmanned Aircraft Systems (UAS) in combat operations [PDF]

Transport Problems, 2011
In this publication has been presented selected aspects of the wide spectrum of Unmanned Aircraft Systems (UAS)/UAV adaptation within the military structures.
Tomasz GUGAŁA
doaj  

History of unmanned aircraft flight controller development

Сельскохозяйственные машины и технологии, 2023
Unmanned aircraft find successful applications across various fields and continue to see increasing demand in numerous sectors. Modern flight control systems empower the creation and programming of unmanned vehicles for a diverse range of tasks.(Research ...
Yu. S. Tsench, R. K. Kurbanov
doaj   +1 more source

Tracking of a Fluorescent Dye in a Freshwater Lake with an Unmanned Surface Vehicle and an Unmanned Aircraft System

Remote Sensing, 2018
Recent catastrophic events in our oceans, including the spill of toxic oil from the explosion of the Deepwater Horizon drilling rig and the rapid dispersion of radioactive particulates from the meltdown of the Fukushima Daiichi nuclear plant, underscore ...
Craig Powers, R. Hanlon, D. Schmale
semanticscholar   +1 more source

Comprehensive assessment of intelligent unmanned vehicle techniques in pesticide application: A case study in pear orchard

Frontiers in Plant Science, 2022
The intelligent pesticide application techniques in orchards have grown rapidly worldwide due to the decrease in agricultural populations and the increase in labor costs.
Yulin Jiang, Xiongkui He, Jianli Song, Yajia Liu, Changling Wang, Tian Li, Peng-xiang Qi, Congwei Yu, Fu Chen   +8 more
semanticscholar   +1 more source

Coordinated Sampling of Microorganisms Over Freshwater and Saltwater Environments Using an Unmanned Surface Vehicle (USV) and a Small Unmanned Aircraft System (sUAS)

Frontiers in Microbiology, 2018
Biological aerosols (bioaerosols) are ubiquitous in terrestrial and aquatic environments and may influence cloud formation and precipitation processes. Little is known about the aerosolization and transport of bioaerosols from aquatic environments.
Craig Powers, R. Hanlon, H. Grothe, A. Prussin, L. Marr, D. Schmale   +5 more
semanticscholar   +1 more source

Application and evaluation of the technical condition of composite materials in aircraft and unmanned aerial vehicles by acoustic emission method of nondestructive testing

Advanced Engineering Research, 2022
Introduction. The paper analyzes the application of composite materials as the main determining method of reducing the mass of the airframe and an unmanned aerial vehicle.
A. V. Popov, A. O. Samuylov, I. S. Cherepanov   +2 more
doaj   +1 more source

THE METHOD OF FORMING A RATIONAL ASPECT OF THE ONBOARD COMPLEX OF RADAR DEFENSE UNMANNED AERIAL VEHICLE

Научный вестник МГТУ ГА, 2017
The urgency of the problem of increasing the efficiency by reducing the visibility of aircraft and installing radio interference on the radio-electronic systems of the air defense complex is substantiated.
A. B. Guseynov, A. V. Makhovykh
doaj   +1 more source