Results 21 to 30 of about 12,837,796 (336)

The Mid-infrared Instrument for JWST and Its In-flight Performance

Publications of the Astronomical Society of the Pacific, 2023
The Mid-Infrared Instrument (MIRI) extends the reach of the James Webb Space Telescope (JWST) to 28.5 μm. It provides subarcsecond-resolution imaging, high sensitivity coronagraphy, and spectroscopy at resolutions of λ/Δλ ∼ 100–3500, with the high ...
G. Wright, G. Rieke, A. Glasse, M. Ressler, Macarena García Marín, J. Aguilar, S. Alberts, J. Álvarez-Márquez, I. Argyriou, K. Banks, P. Baudoz, A. Boccaletti, P. Bouchet, J. Bouwman, B. Brandl, D. Breda, S. Bright, Stephen Cale, L. Colina, C. Cossou, A. Coulais, M. Cracraft, Wim De Meester, D. Dicken, M. Engesser, M. Etxaluze, O. Fox, S. Friedman, Henry Fu, D. Gasman, A. Gáspár, R. Gastaud, V. Geers, A. Glauser, K. Gordon, T. Greene, T. Greve, T. Grundy, M. Güdel, P. Guillard, Peter Haderlein, Ryan Hashimoto, T. Henning, D. Hines, B. Holler, Ö. Detre, A. Jahromi, B. James, O. Jones, K. Justtanont, P. Kavanagh, S. Kendrew, P. Klaassen, O. Krause, Á. Labiano, P. Lagage, S. Lambros, K. Larson, D. Law, David W. Lee, M. Libralato, Jose Lorenzo Alverez, M. Meixner, J. Morrison, M. Mueller, K. Murray, M. Mycroft, Richard H. Myers, O. Nayak, B. Naylor, B. Nickson, A. Noriega-Crespo, G. Östlin, B. O’Sullivan, R. Ottens, P. Patapis, K. Penanen, Martin Pietraszkiewicz, T. Ray, M. Regan, Anthony Roteliuk, P. Royer, P. Samara-Ratna, B. Samuelson, B. Sargent, S. Scheithauer, Analyn Schneider, Jürgen Schreiber, B. Shaughnessy, Ev Sheehan, I. Shivaei, G. Sloan, L. Tamás, Kelly K. Teague, T. Temim, T. Tikkanen, S. Tustain, E. V. van Dishoeck, B. Vandenbussche, M. Weilert, Paul Whitehouse, S. Wolff   +101 more
semanticscholar   +1 more source

Experimental study of the wake interaction between two vertical axis wind turbines

Wind Energy, 2023
Wakes and wake interactions in wind turbine arrays diminish energy output and raise the risk of structural fatigue; hence, comprehending the features of rotor–wake interactions is of practical relevance.
Ming Huang, Yugandhar Vijaykumar Patil, Andrea Sciacchitano, Carlos Ferreira   +3 more
doaj   +1 more source

Effects of wing damage and moult gaps on vertebrate flight performance.

Journal of Experimental Biology, 2023
Vertebrates capable of powered flight rely on wings, muscles that drive their flapping and sensory inputs to the brain allowing for control of the motor output. In birds, the wings are formed of arrangements of adjacent flight feathers (remiges), whereas
A. Hedenström
semanticscholar   +1 more source

In-flight performance and calibration of the Infrared Array Camera (IRAC) for the Spitzer Space Telescope [PDF]

SPIE Astronomical Telescopes + Instrumentation, 2004
The Infrared Array Camera (IRAC) is one of three focal plane instruments on board the Spitzer Space Telescope. IRAC is a four-channel camera that obtains simultaneous broad-band images at 3.6, 4.5, 5.8, and 8.0 μm in two nearly adjacent fields of view ...
G. Fazio, J. Hora, L. E. Allen, M. Ashby, P. Barmby, L. Deutsch, J.-S. Huang, S. Kleiner, M. Marengo, S. Megeath, G. Melnick, M. Pahre, B. Patten, J. Polizotti, H. Smith, R. Taylor, Z. Wang, S. Willner, W. Hoffmann, J. Pipher, W. Forrest, C. W. McMurty, C. Mccreight, M. Mckelvey, R. Mcmurray, D. Koch, S. Moseley, R. Arendt, J. Mentzell, C. Marx, P. Losch, P. Mayman, W. Eichhorn, D. Krebs, M. Jhabvala, D. Gezari, D. Fixsen, J. Flores, K. Shakoorzadeh, R. Jungo, C. Hakun, L. Workman, G. Karpati, R. Kichak, R. Whitley, S. Mann, E. Tollestrup, P. Eisenhardt, D. Stern, V. Gorjian, B. Bhattacharya, S. Carey, B. Nelson, W. Glaccum, M. Lacy, P. Lowrance, S. Laine, W. Reach, J. Stauffer, J. Surace, G. Wilson, E. L. Wright, A. Hoffman, G. Domingo, M. Cohen   +64 more
semanticscholar   +1 more source

On the wake deflection of vertical axis wind turbines by pitched blades

Wind Energy, 2023
Wake losses are a critical consideration in wind farm design. The ability to steer and deform wakes can result in increased wind farm power density and reduced energy costs and can be used to optimize wind farm designs.
Ming Huang, Andrea Sciacchitano, Carlos Ferreira   +2 more
doaj   +1 more source

Competency-based assessment of pilots’ manual flight performance during instrument flight training

Cognition, Technology & Work, 2023
A pilot's control behavior has a direct impact on aviation safety. To adapt to new flight training reforms, a competency-based assessment method is proposed in this paper.
Hong Sun, Xin Zhou, Peiwen Zhang, Xin Liu, Yunsong Lu, Hong Huang, Wu Song   +6 more
semanticscholar   +1 more source

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