Results 11 to 20 of about 113,396 (257)

Performance of NIRCam on JWST in Flight

Publications of the Astronomical Society of the Pacific, 2023
Abstract The Near Infrared Camera for the James Webb Space Telescope (JWST) is delivering the imagery that astronomers have hoped for ever since JWST was proposed back in the 1990s. In the Commissioning Period that extended from right after launch to early 2022 July, NIRCam has been subjected to a number of performance tests and ...
Rieke, Marcia J., Kelly, Douglas M., Misselt, Karl, Stansberry, John, Boyer, Martha, Beatty, Thomas, Egami, Eiichi, Florian, Michael, Greene, Thomas P., Hainline, Kevin, Leisenring, Jarron, Roellig, Thomas, Schlawin, Everett, Sun, Fengwu, Tinnin, Lee, Williams, Christina C., Willmer, Christopher N. A., Wilson, Debra, Clark, Charles R., Rohrbach, Scott, Brooks, Brian, Canipe, Alicia, Correnti, Matteo, DiFelice, Audrey, Gennaro, Mario, Girard, Julian, Hartig, George, Hilbert, Bryan, Koekemoer, Anton M., Nikolov, Nikolay K., Pirzkal, Norbert, Rest, Armin, Robberto, Massimo, Sunnquist, Ben, Telfer, Randal, Wu, Chi Rai, Ferry, Malcolm, Lewis, Dan, Baum, Stefi, Beichman, Charles, Doyon, René, Dressler, Alan, Eisenstein, Daniel J., Ferrarese, Laura, Hodapp, Klaus, Horner, Scott, Jaffe, Daniel T., Johnstone, Doug, Krist, John, Martin, Peter, McCarthy, Donald W., Meyer, Michael, Rieke, George H., Trauger, John, Young, Erick T.   +54 more
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The Overall Design of Variable Diameter Ducted Fan in the Aircraft

Aerospace, 2022
Variable diameter rotor can improve the flight performance of the aircraft both in hovering and forward flying and a duct can improve the rotor performance further both in force and efficiency.
Yadong Gao, Yang Xu
doaj   +1 more source

Airplane tracking documents the fastest flight speeds recorded for bats [PDF]

Royal Society Open Science, 2016
The performance capabilities of flying animals reflect the interplay of biomechanical and physiological constraints and evolutionary innovation. Of the two extant groups of vertebrates that are capable of powered flight, birds are thought to fly more ...
Gary F. McCracken, Kamran Safi, Thomas H. Kunz, Dina K. N. Dechmann, Sharon M. Swartz, Martin Wikelski   +5 more
doaj   +1 more source

Design and Flight Performance of a Bio-Inspired Hover-Capable Flapping-Wing Micro Air Vehicle with Tail Wing

Aerospace, 2023
A key challenge in flapping-wing micro air vehicle (FWMAV) design is to generate high aerodynamic force/torque for improving the vehicle’s maneuverability. This paper presents a bio-inspired hover-capable flapping-wing micro air vehicle, named RoboFly.S,
Shengjie Xiao, Yuhong Sun, Dapeng Ren, Kai Hu, Huichao Deng, Yun Wang, Xilun Ding   +6 more
doaj   +1 more source

A Generalized Approach to Operational, Globally Optimal Aircraft Mission Performance Evaluation, with Application to Direct Lift Control

Aerospace, 2020
A unified approach to aircraft mission performance assessment is presented in this work. It provides a detailed and flexible formulation to simulate a complete commercial aviation mission.
Sam de Wringer, Carmine Varriale, Fabrizio Oliviero   +2 more
doaj   +1 more source

PARASOL in-flight calibration and performance [PDF]

Applied Optics, 2007
Since 18 December 2004, the PARASOL satellite is a member of the so-called A-train atmospheric orbital observatory, flying together with Aqua, Aura, CALIPSO, CLOUDSAT, and OCO satellites. These satellites combine for the first time a full suite of instruments for observing aerosols and clouds, using passive radiometer complementarily with active lidar ...
Fougnie, B., Bracco, G., Lafrance, B., Ruffel, C., Hagolle, Olivier, Tinel, C.   +5 more
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In-Flight Performance of the LEKIDs of the OLIMPO Experiment [PDF]

Journal of Low Temperature Physics, 2020
We describe the in-flight performance of the horn-coupled Lumped Element Kinetic Inductance Detector arrays of the balloon-borne OLIMPO experiment. These arrays have been designed to match the spectral bands of OLIMPO: 150, 250, 350, and 460 GHz, and they have been operated at 0.3 K and at an altitude of 37.8 km during the stratospheric flight of the ...
Paiella, A., Ade, P. A. R., Battistelli, E., Castellano, M. G., Colantoni, I., Columbro, F., Coppolecchia, A., D'Alessandro, G., de Bernardis, P., De Petris, M., Gordon, S., Lamagna, L., Magneville, C., Masi, S., Mauskopf, P., Pettinari, G., Piacentini, F., Pisano, G., Polenta, G., Presta, G., Tommasi, E., Tucker, C., Vdovin, V., Volpe, A., Yvon, D.   +24 more
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Three-Dimensional Flight Envelope for V/STOL Aircraft with Multiple Flight Modes

Aerospace, 2022
Vertical or short take-off and landing (V/STOL) aircraft generally have three flight modes, namely, vertical take-off and landing (VTOL), conversion, and cruise, according to the variable angle of propulsion direction to the fuselage axis.
Tielin Ma, Xiangsheng Wang, Jingcheng Fu, Shuai Hao, Pu Xue   +4 more
doaj   +1 more source

Improved Quality Management of the Indian Meal Moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) for Enhanced Efficacy of the Sterile Insect Technique

Insects, 2023
The sterile insect technique (SIT) is considered an environmentally friendly, autocidal control tactic to manage insect pests. This work dealt with the improvement of quality management of the Indian meal moth Plodia interpunctella (Hübner) for enhanced ...
Md. Mahbub Hasan, Md. Akhtar Hossain, Christos G. Athanassiou   +2 more
doaj   +1 more source

Tri-Copter UAV With Individually Tilted Main Wings for Flight Maneuvers

IEEE Access, 2020
A tri-copter unmanned aerial vehicle (UAV) with individually tilted main wings for various flight maneuvers is presented. In contrast to conventional tilt wing UAVs, thrust vectoring and control of the directions of main wing surfaces are attained by ...
Kyung-Jae Nam, Joosang Joung, Dongsoo Har   +2 more
doaj   +1 more source