Results 211 to 220 of about 11,239 (255)

Research on State Recognition in Aircraft Skin Laser Paint Stripping Based on the Fusion of LIBS Spectra and Surface Images. [PDF]

Sensors (Basel)
Hua H, Wang Y, Tan T, Li S, Cao Y, Tan Z, Li J, Yang W.   +7 more
europepmc   +1 more source

Comparative Study on the Corrosion Sensitivity and Microstructure of 15%SiCp/Al-Cu-Mg Aluminum Matrix Composites Under Different Aging Treatments. [PDF]

Materials (Basel)
Guo N, Li Z, Pan R, Zeng Y, Xu P, Chang Y, Liu B.   +6 more
europepmc   +1 more source

Monitoring Cross-Border Dissemination of Antimicrobial Resistance (AMR) via Air Travel to Saudi Arabia: Formulation of Monitoring Strategies to Mitigate AMR Concerns. [PDF]

Environ Sci Technol
Wang C, Narayanasamy S, Shaabad M, Dallol A, Hala S, Hong PY.   +5 more
europepmc   +1 more source

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Analysis of observed aircraft-to-aircraft separations

2008 Integrated Communications, Navigation and Surveillance Conference, 2008
As air traffic demand continues to increase in the coming years, the need for concepts, procedures and tools that can improve airspace efficiency will likewise increase. Reduction of terminal and en-route separation minima has been the focus of many of the concepts and emerging technologies developed to respond to this need.
Stephen Szurgyi, Sanjiv Shresta, Dejan Neskovic, James DeArmon, Scott Williams   +4 more
openaire   +1 more source

Melting layer observations with radar and aircraft

Proceedings of IGARSS '94 - 1994 IEEE International Geoscience and Remote Sensing Symposium, 2002
Multiparameter radar measurements with the DLR polarimetric radar are combined with a vertical looking Doppler radar to study the melting of snow. The interpretation of the microphysical processes during melting by radar measurements is supported by in situ observations of the melting particles. >
Hagen, M. (Vortragender), Hubbert, J. (1), Richter, C. (2), Bringi, V.N. (1), Meischner, P.   +4 more
openaire   +2 more sources

Aircraft observations of sea-breeze frontal structure

Quarterly Journal of the Royal Meteorological Society, 1999
AbstractDetailed aircraft observations of sea‐breeze frontal structure and dynamics are presented for two cases of well defined sea‐breeze fronts near the east coast of England. In the first case the sea‐breeze was advancing into a well mixed convective boundary layer with strong turbulence and an offshore breeze of around 3 m s‐1.
R. Wood, I. M. Stromberg, P. R. Jonas
openaire   +1 more source

Multiparameter radar and in situ aircraft observation of graupel and hail

IEEE Transactions on Geoscience and Remote Sensing, 2000
Documenting simultaneous multiparameter radar observations of precipitation in conjunction with in situ hydrometeor sampling is important for the interpretation of multiparameter radar observations. In situ observation using aircraft-mounted probes is one of the best ways to collect such data.
V N Bringi
exaly   +2 more sources

Some Observations on the Mechanism of Aircraft Wing Rock

Journal of Aircraft, 1978
A pressure scale model of Northrop F-5A was tested in NASA Ames Research Center Eleven-Foot Transonic Tunnel to simulate the wing rock oscillations in a transonic maneuver. For this purpose, a flexible model support device was designed and fabricated which allowed the model to oscillate in roll at the scaled wing rock frequency. Two tunnel entries were
C. HWANG, W. PI
openaire   +1 more source

OBSERVER-BASED CONTROL OF A PVTOL AIRCRAFT

IFAC Proceedings Volumes, 2005
Abstract In this paper, we propose an observed-based control for the PVTOL aircraft considering that the angular position is not measurable. The control strategy presented here, is robust with respect to observer errors and takes into account constraints imposed by the nonlinear observer.
Anand Sánchez, Isabelle Fantoni, Rogelio Lozano, Jesús De León Morales   +3 more
openaire   +1 more source