Results 81 to 90 of about 13,690 (205)

Knowledge modelling for the laser beam welding process in the aircraft industry [PDF]

, 2011
The Laser Beam Welding (LBW) process offers the possibility of manufacturing joints from most light metals and their combinations, as well as simplifying and integrating the fuselage structure to reduce weight and cost, which are the main concerns of ...
Sun, Xiaofeng
core  

Measuring Demand for Access to Regional Airports: An Application of Zero-Inflated Poisson Regression

Journal of Aviation/Aerospace Education & Research, 2013
The demand for access to regional airports is measured by the counts of area navigation (RNA V)/required navigation (RNP) procedures filed in the flight plan and collected by the Federal Aviation Administration's host computer system.
Tony Diana
doaj   +1 more source

Acoustic properties of aircraft wake vortices

, 2008
The noise generation by aircraft wake vortices has been studied numerically and experimentally. The numerical study revealed a relation between the circulation Γ, the vortex core size rc and the frequency fa of the peak level in the vortex noise spectra,
Böhning, P., Michel, U., Baumann, R.
core  

Propeller Design for a future QESTOL Aircraft in the BNF Project

, 2012
Due to increasing airport congestion the German research project 'Bürgernahes Flugzeug' (BNF, citizen friendly airplane) investigates the potential of aircraft for a possible future air transportation system integrating small airports.
Carsten Lenfers, Lenfers, Carsten
core   +1 more source

Study of optimisation strategies for aircraft structural design [PDF]

, 2012
Optimisation plays an important role in structural design. Structural design optimisation is not only a matter of weight reduction of the structure; it can be used to optimise any type of objectives.
Huang, Feng
core  

Sensible and latent heat flux from radiometric surface temperatures at the regional scale: methodology and validation

, 2009
The CarboEurope Regional Experiment Strategy (CERES) was designed to develop and test a range of methodologies to assess regional surface energy and mass exchange of a large study area in the south-western part of France.
Brunet, Y., Hutjes, R.W.A., Sarrat, C., Zaldei, A., Miglietta, Francesco, Sarrat, Charlotte, Gioli, B., Matese, A., Miglietta, F., Brunet, Yves   +9 more
core   +1 more source

Development of Electric Propulsion Technology in Aviation [PDF]

中国工程科学
The electric propulsion of aircraft has triggered a new wave of innovation and reform in the aviation sector. It is considered as an important move to implementing green development in aviation and addressing global environmental challenges.
Lingyun Shao, Zhuoran Zhang, Huamin Gao, Weikang Huang, Han Xue, Yue Xu   +5 more
doaj   +1 more source

Multi-objective design optimization for high-lift aircraft configurations supported by surrogate modeling [PDF]

, 2013
Nowadays, the competition among airlines seriously depend upon the saving operating costs, with the premise that not to degrade its services quality.
Li, Daxin
core  

Impact of perturbations to nitrogen oxide emissions from global aviation. [PDF]

, 2008
The atmospheric response to perturbations in NO x emissions from global air traffic is investigated by performing a coherent set of sensitivity experiments.
Dessens, O, Keith P. Shine, John A. Pyle, Wild, Oliver, Pyle, John A., Rogers, HL, Oliver Wild, Rädel, Gaby, Dessens, Olivier, Olivier Dessens, Pyle, JA, Gaby Rädel, Kohler, MO, Radel, G, Shine, KP, Wild, O, Köhler, Marcus O., Rogers, Helen L., Helen L. Rogers, Shine, Keith P., Marcus O. Köhler   +20 more
core   +1 more source

Multidisciplinary Aircraft and Trajectory Optimization for Novel Regional Aircraft Architectures

[EN] Novel aircraft configurations, such as hybrid-electric and hydrogen-powered designs, offer strong potential to reduce dependence on conventional fuels and contribute to the decarbonization of aviation. However, their efficient design remains challenging, as conventional methods often fail to capture the complex trade-offs between performance ...
openaire   +2 more sources