We report on a top-down method for the controlled fabrication of three-dimensional (3D), closed, thin-shelled, hollow nanostructures (nanocages) on planar supports. The presented approach is based on conventional microelectronic fabrication processes and exploits the permeability of thin metal films to hollow-out polymer-filled metal nanocages through an oxygen-plasma process. The technique is ...

A practical study was conducted to improve the performance of conventional pyramidal solar stills (CPSS) using two types fins with differing geometries, as well nanocomposites TiO2 and graphene. The first fin hollow, cylindrical, perforated (HCPF), whereas second an inclined rectangular (IPRF). were integrated base a still evaluate their in comparison CPSS. obtained experimental results demonst...

Design and application of super elements in efficient prediction of the structural behaviour in a short time has been one of the research interests in the last decade. A new 16-node cylindrical super element is presented in this paper and implemented to modal analysis of hollow cylinders subjected to various boundary conditions. Comparison of the findings with conventional finite element reveal...

Hollow cylindrical multi-walled hybrid nanotubes go through dynamic growth and subsequent disappearance during the biomimetic fabrication of hexagonal calcite platelets, simulating the in vivo purpose-driven self-assembly of tubular plasma-membrane calcium-ion channels for biomaterials to adapt, respond and repair.

Articles you may be interested in High efficiency coupling of radio frequency beams from the dual frequency gyrotron with a corrugated waveguide transmission system Rev. Dual cylindrical metallic grating-cladding polymer hollow waveguide for terahertz transmission with low loss Appl. Magnetic metal cladding gives better attenuation in small waveguides operating at high microwave frequencies tha...

On a roll: Attachment of flexible coils to the middle of a rigid rod generates T-shaped rod-coil molecules that self-assemble into layers that roll up to form filled cylindrical and hollow tubular scrolls, depending on the coil length, in the solid state (see picture); the rods are arranged parallel to the layer plane.

− We describe the dynamic evaluation of two multi-component force–moment transducers having columntype sensing element. Among them, one has a solid cylindrical sensing element and the other has a hollow cylindrical shape. They were calibrated statically with a force–moment calibration machine in the PhysikalischTechnische Bundesanstalt (PTB), Germany. We evaluated the dynamic characteristics of...