Results 11 to 20 of about 12,837,796 (336)

Fuzzy Comprehensive Evaluation of Pilot Cadets’ Flight Performance Based on G1 Method

Applied Sciences, 2023
In this paper, to better evaluate the flight performance of pilot cadets, a flight performance evaluation index system was constructed based on the task of the traffic pattern, the flight training manual, and interviews with instructors.
Gen Li, Haibo Wang, Ting Pan, Haibo Liu, Haiqing Si   +4 more
doaj   +4 more sources

Extraordinary flight performance of the smallest beetles. [PDF]

Proc Natl Acad Sci U S A, 2020
Size is a key to locomotion. In insects, miniaturization leads to fundamental changes in wing structure and kinematics, making the study of flight in the smallest species important for basic biology and physics, and, potentially, for applied disciplines.
Farisenkov SE, Lapina NA, Petrov PN, Polilov AA.   +3 more
europepmc   +5 more sources

Performance of NIRCam on JWST in Flight [PDF]

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
semanticscholar   +6 more sources

Novel flight style and light wings boost flight performance of tiny beetles. [PDF]

Nature, 2022
Flight speed is positively correlated with body size in animals1. However, miniature featherwing beetles can fly at speeds and accelerations of insects three times their size2.
Farisenkov SE, Kolomenskiy D, Petrov PN, Engels T, Lapina NA, Lehmann FO, Onishi R, Liu H, Polilov AA.   +8 more
europepmc   +2 more sources

Micro-structures, nanomechanical properties and flight performance of three beetles with different folding ratios [PDF]

Beilstein Journal of Nanotechnology, 2022
When beetles are not in flight, their hind wings are folded and hidden under the elytra to reduce their size. This provided inspiration for the design of flapping-wing micro aerial vehicles (FWMAVs).
Jiyu Sun, Pengpeng Li, Yongwei Yan, Fa Song, Nuo Xu, Zhijun Zhang   +5 more
doaj   +2 more sources

Natural variation in the regulation of neurodevelopmental genes modifies flight performance in Drosophila. [PDF]

PLoS Genet, 2021
The winged insects of the order Diptera are colloquially named for their most recognizable phenotype: flight. These insects rely on flight for a number of important life history traits, like dispersal, foraging, and courtship.
Spierer AN, Mossman JA, Smith SP, Crawford L, Ramachandran S, Rand DM.   +5 more
europepmc   +2 more sources

Data-enhanced dynamic flight simulations for flight performance analysis

Aerospace Science and Technology, 2022
More often than not, airlines use aircraft in operating scenarios beyond their optimal design conditions, which negatively affects their performance characteristics.
Dajung Kim, Arjit Seth, Liem, Rhea Patricia   +2 more
exaly   +2 more sources

Physical limits of flight performance in the heaviest soaring bird. [PDF]

Proc Natl Acad Sci U S A, 2020
Significance Flapping flight is extremely costly for large birds, yet little is known about the conditions that force them to flap. We attached custom-made “flight recorders” to Andean condors, the world’s heaviest soaring birds, documenting every single
Williams HJ, Shepard ELC, Holton MD, Alarcón PAE, Wilson RP, Lambertucci SA.   +5 more
europepmc   +2 more sources

Genomic evidence for gene flow between monarchs with divergent migratory phenotypes and flight performance. [PDF]

Mol Ecol, 2020
Monarch butterflies are known for their spectacular annual migration in eastern North America, with millions of monarchs flying up to 4,500 km to overwintering sites in central Mexico.
Talla V, Pierce AA, Adams KL, de Man TJB, Nallu S, Villablanca FX, Kronforst MR, de Roode JC.   +7 more
europepmc   +2 more sources

Flight performance analysis with data-driven mission parameterization: mapping flight operational data to aircraft performance analysis

Transportation Engineering, 2020
This paper develops a hybrid data-driven physics-based model, which maps flight operational data to aircraft performance analysis, in order to estimate aircraft fuel consumption and flight condition information.
Lyu, Yuan, Liem, Rhea Patricia
exaly   +2 more sources