Results 21 to 30 of about 14,550 (304)

Eastern asian emissions of anthropogenic halocarbons deduced from aircraft concentration data [PDF]

, 2003
The Montreal Protocol restricts production of ozone-depleting halocarbons worldwide. Enforcement of the protocol has relied mainly on annual government statistics of production and consumption of these compounds (bottom-up approach).
Donald R. Blake, Blake, D. R., Palmer, Paul I, Glen W. Sachse, Kiley, Christopher M, Palmer, P. I., Sachse, G. W., Jacob, Daniel J, Mickley, L. J., Mickley, Loretta J, Loretta J. Mickley, Jacob, D. J., Fuelberg, H. E., Fuelberg, Henry E, Daniel J. Jacob, Kiley, C. M., Sachse, Glen W, Henry E. Fuelberg, L. J. Mickley, Christopher M. Kiley, Paul I. Palmer, Blake, Donald R   +21 more
core   +1 more source

An SFDI Observer–Based Scheme for a General Aviation Aircraft [PDF]

International Journal of Applied Mathematics and Computer Science, 2013
Abstract The problem of detecting and isolating sensor faults (sensor fault detection and isolation-SFDI) on a general aviation aircraft, in the presence of external disturbances, is considered. The proposed approach consists of an extended Kalman observer applied to an augmented aircraft plant, where some integrators are added to the ...
Marco Ariola, Massimiliano Mattei, Immacolata Notaro, Federico Corraro, Adolfo Sollazzo   +4 more
openaire   +8 more sources

Auto Sweptback Wing Based on Low Scattering Demand for an Unmanned Aerial Vehicle in Phase Flight

Aerospace, 2022
In order to study the optimal sweepback angle when a variant unmanned aerial vehicle (UAV) exhibits a low radar cross-section (RCS) indicator during phase flight, an auto sweep scheme based on electromagnetic scattering evaluation and an improved ...
Zeyang Zhou, Jun Huang
doaj   +1 more source

EUREC ⁴ A observations from the SAFIRE ATR42 aircraft [PDF]

Earth System Science Data, 2022
Abstract. As part of the EUREC4A (Elucidating the role of cloud-circulation coupling in climate) field campaign, which took place in January and February 2020 over the western tropical Atlantic near Barbados, the French SAFIRE ATR42 research aircraft conducted 19 flights in the lower troposphere.
S. Bony, M. Lothon, J. Delanoë, P. Coutris, J.-C. Etienne, F. Aemisegger, A. L. Albright, T. André, H. Bellec, A. Baron, J.-F. Bourdinot, P.-E. Brilouet, P.-E. Brilouet, A. Bourdon, J.-C. Canonici, C. Caudoux, P. Chazette, M. Cluzeau, C. Cornet, J.-P. Desbios, D. Duchanoy, C. Flamant, B. Fildier, C. Gourbeyre, L. Guiraud, T. Jiang, C. Lainard, C. Le Gac, C. Lendroit, J. Lernould, T. Perrin, F. Pouvesle, P. Richard, N. Rochetin, K. Salaün, A. Schwarzenboeck, G. Seurat, B. Stevens, J. Totems, L. Touzé-Peiffer, G. Vergez, J. Vial, L. Villiger, R. Vogel   +43 more
openaire   +8 more sources

Intelligent Military Aircraft Recognition and Identification to Support Military Personnel on the Air Observation Operation [PDF]

, 2022
A hostile or unfriendly aircraft will mostly fly at low-level altitude or hide behind natural obstacles to avoid Radar detection. One of the ways to detect and recognize while at the same time identifying such aircraft is to perform air observation from ...
Sumari, Arwin Datumaya Wahyudi; Cognitive Artificial Intelligence Research Group (CAIRG), Department of Electrical Engineering, Politeknik Negeri Malang, 9 Jl. Soekarno-Hatta, Lowokwaru, Malang 65141, Jawa Timur, Indonesia, Adinandra, Dimas Eka; Department of Information Technology, Politeknik Negeri Malang, 9 Jl. Soekarno-Hatta, Lowokwaru, Malang, 65141, Jawa Timur, Indonesia, Syulistyo, Arie Rachmad; Department of Information Technology, Politeknik Negeri Malang, 9 Jl. Soekarno-Hatta, Lowokwaru, Malang, 65141, Jawa Timur, Indonesia, Lovrencic, Sandra; Faculty of Organization and Informatics, University of Zagreb, Pavlinska 2, Varaždin, HR-42000, Croatia   +3 more
core   +1 more source

Experimental characterization of the COndensation PArticle counting System for high altitude aircraft-borne application [PDF]

, 2008
A characterization of the ultra-fine aerosol particle counter COPAS (COndensation PArticle counting System) for operation on board the Russian high altitude research aircraft M-55 Geophysika is presented. The COPAS instrument consists of an aerosol inlet
Lepukhov, B., Curtius, Joachim, Walter, Saskia, Hermann, M., Böttger, T., Weigel, Ralf, S. Walter, Belyaev, Gennady, S. Borrmann, C. Voigt, Weigel, R., Voigt, C., T. Böttger, Borrmann, Stephan, Curtius, J., G. Belyaev, J. Curtius, Walter, S., R. Weigel, Borrmann, S., Voigt, Christiane, B. Lepukhov, Hermann, Markus, M. Hermann, Lepukhov, Boris, Belyaev, G., Böttger, Thomas   +26 more
core   +1 more source

A Case Study of Stratus Cloud Properties Using In Situ Aircraft Observations over Huanghua, China

Atmosphere, 2019
Cloud liquid water content (LWC) and droplet effective radius (re) have an important influence on cloud physical processes and optical characteristics. The microphysical properties of a three-layer pure liquid stratus were measured by aircraft probes on ...
Chuanfeng Zhao, Lijun Zhao, Xiaobo Dong
doaj   +1 more source

METHODS OF PRECISE AIRCRAFT POSITIONING IN THE GPS SYSTEM WITH AN APPLICATION OF THE TROPOSPHERE CORRECTION [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2020
This article presents the results of studies concerning the designation of accuracy in aircraft navigation positioning by means of the SPP and the SBAS code methods.
Małgorzata KIRSCHENSTEIN, Kamil KRASUSKI, Artur GOŚ   +2 more
doaj   +1 more source

Australian rapid-response airborne observation of the Hayabusa2 reentry

, 2021
In this study, researchers demonstrated the capability to undertake a short notice observation mission through the Hayabusa2 observation mission. They analyzed the technical challenges and successes associated with the planning and execution in the ...
Apirana, Steven, Zander, Fabian, Leis, John, Lobsey, Craig, Noller, Lachlan, Wright, Duncan, Birch, Byrenn, James, Christopher M., Buttsworth, David R., Thompson, Matthew, Payne, Allan   +10 more
core   +1 more source

Aircraft observations of a lightning channel in STEPS [PDF]

Geophysical Research Letters, 2003
We analyze a portion of an intracloud lightning channel that was captured on video by an instrumented aircraft and mapped three‐dimensionally by a ground‐based lightning mapping array (LMA). By comparing the electric fields measured on the aircraft with a model which simulates the electrostatic field present after charge was effectively deposited by ...
Tom A. Warner, John H. Helsdon, Andrew G. Detwiler   +2 more
openaire   +1 more source