Results 41 to 50 of about 3,413,392 (339)

Analysis of Space-Based Observed Infrared Characteristics of Aircraft in the Air

Remote Sensing, 2023
The space-based infrared observatory of aircraft in the air has the advantages of wide-area, full-time, and passive detection. The optical design parameters for space-based infrared sensors strongly rely on target observed radiation, but there is still a
Jiyuan Li, Huijie Zhao, Xingfa Gu, Lifeng Yang, Bin Bai, Guorui Jia, Zengren Li   +6 more
semanticscholar   +1 more source

Progressive and Prospective Technology for Cloud Seeding Experiment by Unmanned Aerial Vehicle and Atmospheric Research Aircraft in Korea

Advances in Meteorology, 2022
This study applies a novel cloud seeding method using an unmanned aerial vehicle (UAV) and a research aircraft in Korea. For this experiment, the UAV sprayed a cloud seeding material (calcium chloride), and the aircraft monitored the clouds in the ...
Woonseon Jung, J. Cha, A.-Reum Ko, Sanghee Chae, Yonghun Ro, H. Hwang, Bu-Yo Kim, J. Ku, Ki-Ho Chang, C. Lee   +9 more
semanticscholar   +1 more source

The Wright Brothers: First Aeronautical Engineers and Test Pilots [PDF]

, 2003
Sir George Cayley invented the conventional configuration of the airplane at the turn of the 19th century. Otto Lilienthal realized that building a successful aircraft meant learning how to fly; he became the first hang glider pilot and also the first ...
Culick, F. E. C.
core   +1 more source

Microwave observations of sea state from aircraft [PDF]

Quarterly Journal of the Royal Meteorological Society, 1969
AbstractMeasurements of the thermal radiation emitted by natural water surfaces at a wavelength of 1·55 cm have been measured from aircraft at up to 12 km altitude.The dependence of the radiation on surface roughness is studied in view of its possible importance to satellite observation of sea state.
W. Nordberg, J. Conaway, P. Thaddeus
openaire   +1 more source

Collaborative Localization Method Based on Hybrid Network for Aerial Swarm

Aerospace
In light of the satellite rejection environment and how aircraft can obtain high-precision positioning, this paper proposes a collaborative correction algorithm for aircraft based on the rank-defect network.
Rong Wang, Huiyuan Zhang, Chen Gu, Zhi Xiong, Jianye Liu   +4 more
doaj   +1 more source

POSSIBILITY OF USE OF THE RIVER BADGE SHIP AS A POTENTIAL AIRCRAFT CARRIER IN THE SECURITY OF LOGISTIC AND CRITICAL INFRASTRUCTURE [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2019
This article contains a description and analysis of the hypothetical application of the inland barge as an "aircraft carrier" with observation aircraft, both manned helicopters and unmanned drones.
Jakub MARSZAŁKIEWICZ
doaj   +1 more source

Lidar Observations of Aircraft Exhaust Plumes

Journal of Atmospheric and Oceanic Technology, 2010
Abstract A series of field campaigns has been made at British airports using a rapid-scanning lidar and other instrumentation in order to measure the dispersion of exhaust plumes from commercial aircraft. The lidar operated at a wavelength of 355 nm and was thus effectively eye safe.
David Raper, Angus Graham, Simon Christie, Michael Bennett   +3 more
openaire   +1 more source

The Impact of the Hunga Tonga–Hunga Ha’apai Volcanic Eruption on the Stratospheric Environment

Atmosphere
In this study, an overview of two years of research findings concerning the 2022 Hunga Tonga–Hunga Ha’apai (HTHH) volcanic eruption in the stratospheric environment is provided, focusing on water vapor, aerosols, and ozone.
Qian Sun, Taojun Lu, Dan Li, Jingyuan Xu
doaj   +1 more source

Ensemble prediction for nowcasting with a convection-permitting model—I: description of the system and the impact of radar-derived surface precipitation rates [PDF]

, 2010
A key strategy to improve the skill of quantitative predictions of precipitation, as well as hazardous weather such as severe thunderstorms and flash floods is to exploit the use of observations of convective activity (e.g. from radar).
Bloom S., Bowler N. E., Davies T., Dixon M., Done J. M., Fritsch J. M., Gilmore M. S., Golding B. W, Hamill T. M, Harrison D. L., Hohenegger C., Jones C. D., Koizumi K., Lean H. W., Lilly D. K, Lorene A. C., Macpherson B., Mark Dixon, Mass C. F., Page C., Park S. K., Pires C. A, Ross Bannister, Sakov P., Stefano Migliorini, Stensrud D. J., Sue Ballard, Sun J, Tong M., Wang X., Wang X., Wilson D. R.   +31 more
core   +1 more source

Uncertainty quantification and reduction in aircraft trajectory prediction using Bayesian-Entropy information fusion

Reliability Engineering & System Safety, 2021
Eliminating accidents while maintaining the integrity of the National Airspace System is one of the central objectives of the Next Generation Air Transportation System.
Yuhao Wang, Yutian Pang, Oliver Chen, Hari N. Iyer, P. Dutta, P. Menon, Yongming Liu   +6 more
semanticscholar   +1 more source