نتایج جستجو برای: element wings
تعداد نتایج: 209562 فیلتر نتایج به سال:
Whiteness, although frequently apparent on the wings, legs, antennae, or bodies of many species of moths and butterflies, along with other colors and shades, has often escaped our attention. Here, we investigate the nanostructure and microstructure of white spots on the wings of Carystoides escalantei, a dusk-active and shade-inhabiting Costa Rican rain forest butterfly (Hesperiidae). On both m...
A significant fraction of extended radio sources presents a peculiar X-shaped radio morphology: in addition to the classical double lobed structure, radio emission is also observed along a second axis of symmetry in the form of diffuse wings or tails. We reexamine the origin of these extensions relating the radio morphology to the properties of their host galaxies. The orientation of the wings ...
Abstract We investigate the use of density-based topology optimization for aeroelastic design very flexible wings. This is achieved with a Reynolds-averaged Navier–Stokes finite volume solver, coupled to geometrically nonlinear element structural simulate large-displacement fluid-structure interaction. A gradient-based approach used derivatives obtained via adjoint solver based on algorithmic d...
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