Results 171 to 180 of about 490,773 (280)

Climatology of upper‐tropospheric turbulence: Capabilities and limitations of aircraft reports and ERA5 reanalysis diagnostics

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Based on turbulence diagnostics, airlines are willing to avoid up to 15% of the airspace in order to avoid a fraction of turbulence that takes up about 0.1% of the airspace. This study quantifies these three fractions using turbulence reports from commercial aircraft and ERA5 reanalysis diagnostics, revealing that the low and regionally variable ...
Thorsten Kaluza, Paul D. Williams, David M. Schultz, Timothy P. Banyard   +3 more
wiley   +1 more source

Taking Flight with Aviation English: How are Malaysian Teachers Preparing the Next Generation? [PDF]

F1000Res
Mahmood AS, Mat Saad NS, Mohd Nur N.
europepmc   +1 more source

Correlation Between Strain Gradient and Fracture Damage Mechanism of TA18 Alloy Based on In Situ SEM/EBSD Analysis

Rare Metals, EarlyView.
ABSTRACT TA18 alloy is an ideal material for piping systems in the aerospace field, the low notch sensitivity and high damage tolerance enhance its engineering application value. However, the complex failure mechanism influenced by strain gradient necessitates further improvement of the service stability for TA18 alloy in practical engineering ...
Xin Du, Jie‐Ren Yang, Shuai‐Yu Li, Wei Jin, Ze‐Dong Liu, Ying Liu, Rui‐Run Chen   +6 more
wiley   +1 more source

A narrative review on in-flight use of consumer sleep technologies for aviation research. [PDF]

Sleep Adv
Devine JK, Hursh SR.
europepmc   +1 more source

Crystallization Engineering of GaAs/Sb2S3 Core‐Shell Nanowires for Gain Manipulation of Photodetectors

Rare Metals, EarlyView.
ABSTRACT Photodetectors, based on GaAs nanowires (NWs), hold significant promise in the fields of high integration micro‐ and nano‐optoelectronics applications because of their outstanding electronic and optical properties. To date, significant efforts have been directed toward enhancing the performance of photodetectors, aiming for high detectivity ...
Yu Hao, Xuan Fang, Deng‐Kui Wang, Zhen Wang, Dan Fang, Yong Wang, Xi‐Yao Fu, Jie Fan, Hai‐Zhu Wang, Yong‐Gang Zou, Xiao‐Hua Wang, Jin‐Hua Li   +11 more
wiley   +1 more source

Safety design of aviation propulsion lithium-ion battery systems based on thermal runaway explosion index. [PDF]

Sci Rep
Yang J, Yang Y, Tong J, Niu J, Zhang Q.
europepmc   +1 more source

Uncertainty Quantification in Planning Aircraft Ground Movement Operations With Towbarless Robotic Tractors

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This article addresses the problem of quantifying the uncertainty in planning aircraft ground movement operations using towbarless robotic tractors taking into account the inherent uncertainties of the problem, specifically, the uncertainties in the weight of the aircraft and in the rolling resistance of the wheels of the main landing gear ...
Almudena Buelta, Alberto Olivares, Ernesto Staffetti   +2 more
wiley   +1 more source

Air transportation carbon dioxide emission forecasting: An improved back propagation neural network. [PDF]

PLoS One
Zhang P, Luo Y, Yu Q, Zhou Z.
europepmc   +1 more source

Quantifying aboveground herbaceous biomass in grassy ecosystems: a comparison of field and high‐resolution UAV‐LiDAR approaches

Remote Sensing in Ecology and Conservation, EarlyView.
The abundance of herbaceous vegetation in grassy ecosystems—which cover >25% of the world's land surface—is highly variable and impacts key ecological processes including carbon sequestration and support for grazing wildlife and livestock. Here, we present a method for using high‐resolution, UAV‐borne Light Detection and Ranging (LiDAR) to estimate ...
Tyler C. Coverdale, Peter B. Boucher, Jenia Singh, Andrew B. Davies   +3 more
wiley   +1 more source

Aviation medicine's role in safeguarding aviation safety. [PDF]

Singapore Med J
Soh FW, Woo JHA, Low JW, Fong KL, Low CHR.   +4 more
europepmc   +1 more source