Results 41 to 50 of about 12,837,796 (336)

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
openaire   +4 more sources

Process Development for Integrated and Distributed Rotorcraft Design

Aerospace, 2019
The German Aerospace Center is currently developing a new design environment for rotorcraft, which combines sizing, simulation and evaluation tasks into one toolbox.
Peter Weiand, Michel Buchwald, Dominik Schwinn   +2 more
doaj   +1 more source

Flight of the dragonflies and damselflies [PDF]

, 2016
This work is a synthesis of our current understanding of the mechanics, aerodynamics and visually mediated control of dragonfly and damselfly flight, with the addition of new experimental and computational data in several key areas.
Alexander DE, Alexander DE, Azuma A, Bomphrey RJ, Chadwick LE, Corbet S, Dijkstra K-DB, Ennos AR, Grimaldi D, Hertel H, Huai-Ti Lin, Kesel AB, Liu H, Luttges M, Magnan A, May ML, Neville AC, Newman BG, Newman DJS, Okamoto M, Per Henningsson, Rajabi H, Richard J. Bomphrey, Rudolph R, Rüppell G, Stepniewski WZ, Toshiyuki Nakata, Wakeling JM, Wakeling JM, Wakeling JM   +29 more
core   +2 more sources

Model-Based Analysis of Lithium-Ion Battery Technology Predictions in Light-Sport Aircraft

IEEE Access, 2022
A flight performance model was used to analyze the range capability of fully electric and hybrid-electric aircraft powertrains to determine their implementation feasibility compared to a similarly sized traditionally powered reference aircraft. Range was
Madeline McQueen, Ahmet E. Karatas, Gotz Bramesfeld, Osvaldo Arenas   +3 more
doaj   +1 more source

Sex- and size-dependent variation in wing morphology of the cuckoo wasp Trichrysis cyanea (Hymenoptera: Chrysididae)

European Journal of Entomology, 2022
Intraspecific variation and sexual dimorphism in wing shape and size is common in winged insects. The exact patterns, however, differ among taxa and are related to the selection pressure acting on specific traits.
David FRÖHLICH, Lukas ZANGL, Günther RASPOTNIG, Stephan KOBLMÜLLER   +3 more
doaj   +1 more source

Studies on the Relationship between Occupational Stress and Mental Health, Performance, and Job Satisfaction of Chinese Civil Aviation Pilots

Aerospace, 2023
This research work delves into the potential impact of occupational stress on the mental health, performance, and job satisfaction of civil aviation pilots.
Yanzeng Zhao, Yanlong Wang, Wei Guo, Lin Cheng, Jialu Tong, Ruipeng Ji, Yizhi Zhou, Ziyu Liu, Lijing Wang   +8 more
doaj   +1 more source

Flight muscle breakdown in the green-veined white butterfly, Pieris napi (Lepidoptera: Pieridae)

European Journal of Entomology, 2008
Flight is important for insects but also incurs costs in terms of reduced reproductive reserves. Recent studies on butterflies have shown that thorax mass and nitrogen content decrease over the adult lifespan, suggesting that flight muscle breakdown may ...
Fredrik STJERNHOLM, Bengt KARLSSON
doaj   +1 more source

Aircraft Take-off and Landing Performance Calculation Method Based on Flight Simulation

Xibei Gongye Daxue Xuebao, 2019
In order to comply with the existing standard requirements or specifications, a new computational method for aircraft take-off and landing performance, which deals with the characteristics of the high precision of parameters in the process of take-off ...

doaj   +1 more source

Thermal and Oxygen Flight Sensitivity in Ageing Drosophila melanogaster Flies: Links to Rapamycin-Induced Cell Size Changes

Biology, 2021
Ectotherms can become physiologically challenged when performing oxygen-demanding activities (e.g., flight) across differing environmental conditions, specifically temperature and oxygen levels.
Ewa Szlachcic, Marcin Czarnoleski
doaj   +1 more source

Long Range Air Traffic Flow Management with Flight-Specific Flight Performance

Future Transportation, 2022
The increasing need for dynamic in-flight adjustments of a trajectory allows the airport, air traffic control and the airline a high degree of flexibility in terms of in-flight execution. This concept enables numerous optimisation options to jointly meet
Judith Rosenow, Ehsan Asadi, Daniel Lubig, Michael Schultz, Hartmut Fricke   +4 more
doaj   +1 more source