Results 11 to 20 of about 1,317,358 (306)
Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter
Hangkong gongcheng jinzhan, 2023 The analysis of the aerodynamic interference of the downwash on wings under different intensities on both sides of the rotor of the composite high-speed helicopter, can provide a certain reference for the design and optimization of the aerodynamic shape ...
LIU Chaofan, ZHU Qinghua, LIU Jia
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Aerospace, 2021 This work provides a feasibility and effectiveness analysis, through numerical investigation, of metal replacement of primary components with composite material for an executive aircraft wing. In particular, benefits and disadvantages of replacing metal,
Valerio Acanfora +4 more
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Behavioural elements and sensory cues involved in sexual isolation between Drosophila melanogaster strains [PDF]
Royal Society Open Science, 2018 Sensory cues exchanged during courtship are crucial for mate choice: if they show intraspecific divergence, this may cause or reinforce sexual isolation between strains, ultimately leading to speciation.
Micheline Grillet +2 more
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Aerodynamic and Structural Design of a 2022 Formula One Front Wing Assembly
Fluids, 2020 The aerodynamic loads generated in a wing are critical in its structural design. When multi-element wings with wingtip devices are selected, it is essential to identify and to quantify their structural behaviour to avoid undesirable deformations which ...
Xabier Castro, Zeeshan A. Rana
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Radiological and Histological Assessment of the Ossification Centers of Pectoral Limb in Quail [PDF]
Iranian Journal of Veterinary Medicine, 2017 BACKGROUND: The growth and differentiation of skeletal pectoral limb girdle, wing and the ossification centers in these regions after hatching were investigated in some groups of quails.
siamak alizadeh +2 more
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Serpentine and Vermiform Are Produced Autonomously to Fulfill Their Function in Drosophila Wings
Insects, 2023 Group I chitin deacetylases (CDAs), CDA1 and CDA2, play an essential role in cuticle formation and molting in the process of insect wing development. A recent report showed that trachea are able to take up a secreted CDA1 (serpentine, serp) produced in ...
Xubo Zhang +6 more
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Forces and loosening characteristics of a new winged chisel plough
Research in Agricultural Engineering, 2021 This study was devoted to verifying the performance of various configurations of a winged chisel plough (WCP) in a soil bin. The performance of the new tool was assessed at three wing depths (5, 10 and 15 cm), three bend angles (10, 20 and 30 °), and ...
Mahmood Reza Salar +3 more
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Shoulder & Elbow, 2014 This review explores the causes of scapula winging, with overview of the relevant anatomy, proposed aetiology and treatment. Particular focus is given to lesions of the long thoracic nerve, which is reported to be the most common aetiological factor.
Benjamin W T, Gooding +3 more
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Human-Wildlife Interactions, 2017 A community-level approach to identify important brood habitats of greater sage-grouse (Centrocercus urophasianus) may prove useful in guiding management actions because it acknowledges that important habitat components are not ecologically independent ...
Seth M. Harju +6 more
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Can scalable design of wings for flapping wing micro air vehicle be inspired by natural flyers? [PDF]
, 2018 Lift production is constantly a great challenge for flapping wing micro air vehicles (MAVs). Designing a workable wing, therefore, plays an essential role. Dimensional analysis is an effective and valuable tool in studying the biomechanics of flyers.
Chen, Yi +4 more
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