Flighted beetles have deployable hindwings, which enable them to directly reduce their body size, and thus are excellent bioinspired prototypes for microair vehicles (MAVs). The wing shape of MAVs has an important influence on aerodynamics. In this paper, shapes, inspired from three beetle species’ hindwings designed in terms the camber angle, geometry (including length, aspect ratio (AR), tape...

To gain insight into the evolution of flower traits in generalized food-deceptive plant Iris pumila, we assessed color, size, shape, and fluctuating asymmetry (FA) three functionally distinct floral organs—outer perianths (‘falls’), inner (‘standards’), style branches—and estimated pollinator-mediated selection on these traits. We evaluated perianth color as achromatic brightness fall, measured...

We form single-electron transistors from individual chemically synthesized gold nanoparticles, 5-15 nm in diameter, with monolayers of organic molecules serving as tunnel barriers. These devices allow us to measure the discrete electronic energy levels of individual gold nanoparticles that are, by virtue of chemical synthesis, well-defined in their composition, size and shape. We show that the ...

High speed and low power dissipation devices are expected from future generation technology of Nano-electronic devices. Tunnel field effect transistor (TFET) is unique to the prominent in applications. To minimize leakage currents, tunnel switching TFETs superior conventional MOS FETs. The gate coverage area different fin shape hybrid field-effect transistors more impacted on electric character...

Experimental results for dissociating nitrogen flow over a wedge, obtained in a free-piston shock tunnel, are described. Interferograms of the flow show clearly the curvature of the shock wave and the rise in fringe shift after the shock associated with the dissociation. It is shown that the shock curvature a t the tip of the wedge can be used to calculate the initial dissociation rate and that...

18 Two different parts of Candida antarctica lipase B (stereospecificity pocket at the bottom of 19 the active site and hydrophobic tunnel leading to the active site) were redesigned by single-or 20 double-point mutations, in order to better control and improve enzyme enantioselectivity 21 toward secondary alcohols. Single point isosteric mutations of Ser47 and Thr42 situated in the 22 stereosp...

A series of wind tunnel model tests and theoretical analyses were conducted to investigate torsion excitation, response and vibration suppression of wind-excited buildings. An aeroelastic model for pure torsion vibration was developed and the aeroelastic test results were compared with those obtained by other Wind tunnel test techniques. The comparison and practice indicated that this type of m...