Results 31 to 40 of about 53,445 (265)

The jet fuels anti-wear properties indicator

open access: yesНаучный вестник МГТУ ГА, 2021
There are three main fuel brands for jet engines of civil aviation used: domestic TS-1 and RT and foreign, produced in relatively small volumes in Russia, JET A-1 (JET A-1).
K. I. Gryadunov   +3 more
doaj   +1 more source

THE EAR AND AVIATION [PDF]

open access: yesArchives of Neurology And Psychiatry, 1919
In undertaking to train a man to learn to fly, the Army demands that he be a normal man in good health. Therefore, each applicant for this training is given a careful complete physical examination, including the special senses. The ear examination includes tests of sound-perception, and of the motion-perception of the vestibular apparatus; the ...
openaire   +1 more source

The analysis of working liquid flow in a hydrostatic line with the use of frequency characteristics [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
One of the little described problems in hydrostatic drives is the fast changing runs in the hydraulic line of this drive affecting the nature of the formation and intensity of pressure pulsation and flow rate occurring in the drive.
L. Ułanowicz, G. Jastrzębski
doaj   +1 more source

Quantifying the Resilience of the U.S. Domestic Aviation Network During the COVID-19 Pandemic

open access: yesFrontiers in Built Environment, 2021
This paper analyzes the impacts of COVID-19 pandemic on the United States air transportation network between March and August 2020. Despite dramatic reductions in flight and passenger volumes, the network remained robust and resilient against ...
Aleksandar Bauranov   +5 more
doaj   +1 more source

Possibile Applications of Magnetic Microwires in Aviation

open access: yesFatigue of Aircraft Structures, 2014
Magnetic microwires have been rediscovered due to a number of the unusual magnetic properties and their potential applications. The paper concerns glass-coated magnetic microwires composed of a ferromagnetic metallic core with a diameter of 0.6 - 30 jj.m
Draganová Katarína   +3 more
doaj   +1 more source

Comparative analysis of the legislative, technological and operational aspects in the field of civil aviation security in the region between East and West [PDF]

open access: yesBezbednosni Dijalozi, 2017
The primary goal of the paper is to make a comparative analysis of the legislative, technological and operational segments in the field of civil aviation security in the East and West countries with those in the Balkans; a secondary objective is to ...
Gjorgji Alceski, Tomislav Tuntev
doaj   +1 more source

Tailor‐Made Protective LixAlSy Layer for Lithium Anodes to Enhance the Stability of Solid‐State Lithium–Sulfur Batteries

open access: yesAdvanced Materials Interfaces, EarlyView.
An intentionally added, chemically formed LixAlSy coating stabilizes the lithium–electrolyte interface in solid‐state Li–S batteries. The layer suppresses side reactions, preserves smooth charge transfer, and improves ion transport from the start. This approach offers a practical route to more durable solid‐state batteries and a clearer understanding ...
Xinyi Wang   +4 more
wiley   +1 more source

'½ vol. not relevant': The scrapbook of Winifred Penn-Gaskell

open access: yesScience Museum Group Journal, 2014
The scrapbook of Winifred Penn-Gaskell – celebrated aerophilatelist and collector of aeronautica –reveals a great deal about its maker and the social and political context of early flight history in Britain. It is argued here that a ‘reading’ of the book
Caitlin Doherty
doaj   +1 more source

On the Performance of Machine Learning Based Flight Delay Prediction – Investigating the Impact of Short-Term Features

open access: yesPromet (Zagreb), 2022
People and companies today are connected around the world, which has led to a growing importance of the aviation industry. As flight delays are a big challenge in aviation, machine learning algorithms can be used to forecast those.
Delia Schösser, Jörn Schönberger
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

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