Results 1 to 10 of about 17,778 (196)
Soft Active Polymers for Biomimetic Shape Morphing Wings [PDF]
BiomimeticsIn nature, avian species achieve remarkable aerodynamic efficiency by seamlessly coordinating flexible soft tissues to create continuous, adaptive wing surfaces, significantly minimizing drag and eliminating parasitic turbulence.
Chao Yuan, Changyue Liu, Zhijian Wang
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Molecular epidemiological study on tick-borne pathogens in Qinghai Province, Northwestern China [PDF]
Biosafety and HealthRecently, there has been a continuous stream of reports on emerging tick-borne pathogens affecting humans. Qinghai Province, located in the northweastern region, is one of China’s major pastoral areas, providing a suitable environment for ticks' survival
Chunfeng Luo +20 more
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The ectoparasitic seal louse, Echinophthirius horridus, relies on a sealed tracheal system and spiracle closing apparatus for underwater respiration [PDF]
Communications BiologyMarine mammals host a diverse array of parasites engaged in a continuous evolutionary arms race. However, our understanding of the biology of parasitic insects associated with marine mammals, particularly their adaptations to challenging marine ...
Anika Preuss +11 more
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Selection Criteria for Biplane Wing Geometries by Means of 2D Wind Tunnel Tests
Applied Mechanics, 2022 This paper presents a study based on wind tunnel research on biplane configurations. The objective of this research is to establish an experimental basis for relationships between the main geometrical parameters that define a biplane configuration ...
Ángel Antonio Rodríguez-Sevillano +6 more
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Tweezepy: A Python package for calibrating forces in single-molecule video-tracking experiments
PLoS ONE, 2021 Single-molecule force spectroscopy (SMFS) instruments (e.g., magnetic and optical tweezers) often use video tracking to measure the three-dimensional position of micron-scale beads under an applied force.
Ian L. Morgan, Omar A. Saleh
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Dispersal Polymorphisms in Invasive Fire Ants. [PDF]
PLoS ONE, 2016 In the Found or Fly (FoF) hypothesis ant queens experience reproduction-dispersal tradeoffs such that queens with heavier abdomens are better at founding colonies but are worse flyers.
Jackson A Helms, Aaron Godfrey
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Frontiers in Veterinary Science, 2023 ObjectivesThis study aimed to analyze the population density of vector ticks and reservoir hosts rodents, and to investigate the relevant pathogen infection in Zhejiang Province, China.MethodsIn this surveillance study, the data of ticks density were ...
Jinna Wang +8 more
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A method for reducing parasite drag of medium transport helicopter
Aerospace Technic and Technology, 2023 At present, more and more stringent emission requirements are being imposed on helicopters. Carbon dioxide emissions are a function of fuel consumption, and fuel consumption is directly dependent on the power required for a helicopter cruise flight. The power, required for horizontal flight of a helicopter directly depends on the design of the fuselage
Mykhaylo Kybalnyy +3 more
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Comparison of Induced and Parasitic Drag on Wings with Minimum Induced Drag
AIAA Scitech 2019 Forum, 2019 Minimizing the induced drag for steady level flight is a variational problem that requires solving for the optimum lift distribution given a set of design constraints. From lifting-line theory, minimizing the induced drag is, in part, achieved by varying the Fourier coefficients used to describe the section lift.
Sarah A. Abdel-Motaleb +3 more
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Nuclear Fusion, 2023 Divertor systems of fusion devices are exposed to intense heat loads from plasmas, which degrade solid plasma-facing components. Fast liquid metal (LM) flow divertors may be more advantageous for this purpose but have risk of piling due to intense ...
F. Saenz +13 more
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