Results 21 to 30 of about 1,137,089 (312)

Evaluating Fuel Consumption for Continuous Descent Approach Based on QAR Data

open access: yesPromet (Zagreb), 2019
Fuel savings are a significant aspect for evaluating the current and future technologies of civil aviation. Continuous-Descent Approach (CDA), as a representative of new concepts, requires a method for evaluating its fuel benefits.
Lisha Ye, Li Cao, Xuhui Wang
doaj   +1 more source

Design and simulation of the accumulator for servomechanisms of launch vehicle

open access: yesThe Journal of Engineering, 2020
The accumulator is a crucial component of the hydraulic power for servomechanisms of the launch vehicle, which has a significant effect on the performance and the mass power. Traditional design methods are mostly based on empirical formulas, which do not
Bo Zheng   +5 more
doaj   +1 more source

Developed criteria to improve pilot reporting of airplane vortex encounters

open access: yesAviation, 2020
Leading airplane vortices can be hazardous to following airplanes. The regulated minimum separations between following and leading airplanes are sometimes overjudged, hence causing reduction in the capacity of airports.
Aziz Al-Mahadin, Serdar Dalkilic
doaj   +1 more source

Data-enhanced dynamic flight simulations for flight performance analysis

open access: yesAerospace Science and Technology, 2022
More often than not, airlines use aircraft in operating scenarios beyond their optimal design conditions, which negatively affects their performance characteristics. These effects are statistically reflected in flight operational data, which are indirectly constrained by air transportation management as well as aircraft design.
Dajung Kim, Arjit Seth, Rhea P. Liem
openaire   +2 more sources

Database of daily Lagrangian Arctic sea ice parcel drift tracks with coincident ice and atmospheric conditions

open access: yesScientific Data, 2023
Since the early 2000s, sea ice has experienced an increased rate of decline in thickness, extent and age. This new regime, coined the ‘New Arctic’, is accompanied by a reshuffling of energy flows at the surface.
Sean Horvath   +7 more
doaj   +1 more source

Smaller Flight Data Recorders

open access: yesJournal of Aviation Technology and Engineering, 2013
Data captured by flight data recorders are generally stored on the system’s embedded hard disk. A common problem is the lack of storage space on the disk. This lack of space for data storage leads to either a constant effort to reduce the space used by data, or to increased costs due to acquisition of additional space, which is not always possible ...
Wiseman, Yair, Barkai, Alon
openaire   +4 more sources

Flight of the dragonflies and damselflies [PDF]

open access: yes, 2016
This work is a synthesis of our current understanding of the mechanics, aerodynamics and visually mediated control of dragonfly and damselfly flight, with the addition of new experimental and computational data in several key areas.
Alexander DE   +29 more
core   +2 more sources

Identification of Flux Rope Orientation via Neural Networks

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Geomagnetic disturbance forecasting is based on the identification of solar wind structures and accurate determination of their magnetic field orientation. For nowcasting activities, this is currently a tedious and manual process.
Thomas Narock   +4 more
doaj   +1 more source

Contribution of Birkeland Currents to the Earth’s distant magnetic field

open access: yesGeofísica Internacional, 1992
Las Corrientes de Birkeland son corrientes eléctricas en forma de hojas que fluyen hacia adentro y hacia afuera de la zona auroral; su circuito parece estar cerrado lejos de la tierra ya sea por corrientes cercanas al ecuador en el lado noche 0 por ...
M. Peredo, D. P. Stern
doaj   +1 more source

Comparison between vortices created and evolving during fixed and dynamic solar wind conditions [PDF]

open access: yesAnnales Geophysicae, 2013
We employ Magnetohydrodynamic (MHD) simulations to examine the creation and evolution of plasma vortices within the Earth's magnetosphere for steady solar wind plasma conditions.
Y. M. Collado-Vega   +5 more
doaj   +1 more source

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