Background: One area of nanoscience deals with nanoscopic interactions between nanostructured materials and biological systems. To elucidate the effects of the substrate surface morphology and viscoelasticity on cell proliferation, fractal analysis was performed on endothelial cells cultured on nanocomposite samples based on silicone rubber (SR) and various concentrations of organomodified nano...

in this article, finite difference method (fdm) is used to solve sixth-order derivatives of differential equations in buckling analysis of nanoplates due to coupled surface energy and non-local elasticity theories. the uniform temperature change is used to study thermal effect. the small scale and surface energy effects are added into the governing equations using eringen’s non-local elasticity...

Surface quality including surface roughness and edge chipping is a key process measure in micro ultrasonic machining (Micro-USM) as an efficient process for micromachining of hard and brittle materials. Process parameters such as ultrasonic vibration amplitude, static load, type of tool material, type and size of abrasive particles and slurry concentration can influence the surface quality. How...

A thermodynamic system of equally charged, plus and minus, classical particles constrained to move in a (spherical) ball is studied in a region of parameters in which Debye screening takes place. The activities of the two charge species are not taken as necessarily equal. We must deal with two physically interesting surface effects, the formation of a surface charge layer, and long range forces...

We derive displacement equations for Rayleigh and Love waves in simple structural models for point sources in order to better understand source effects on their wavefields and radiation patterns. In doing so, we analytically demonstrate the existence of surface waves in these Earth models. Rayleigh and Love wave radiation patterns are found to mimic the P and SH radiation patterns, respectively...

where M is the earth mass, m is the perturber mass, R is the center-to-center distance between Earth and the perturber, a0 is the earth radius, ψ is the angle between the mass centers and the observer, ωL is the (siderial) rate of revolution of the two bodies, and θ is the co-latitude of the observer referenced to Earth’s center of mass. The last, rotational term, simply adds to the rotational ...

We discuss the effects of surfaces on bulk plasma oscillations in a metallic film of thickness L. The leading corrections to the plasma frequencies due to the surfaces are proportional to L−1. The frequencies of low-lying long wavelength modes are given by the dispersion relation of bulk modes, ω = ωp[1 + α(q 2/k2 F )], where the allowed q-values are q(n) = (nπ/L), L ≡ L− 2db, and db is a compl...

The existence of surface nanobubbles has already been confirmed by variable detection methods, but the mechanism their extraordinary stability remains unclear and aroused widespread research interest in past 2 decades. Experiments theoretical analyses have tried to account for these stabilities such as very long lifetime, high pressure small contact angle. Attractive hydrophobic potential was a...

Surface quality including surface roughness and edge chipping is a key process measure in micro ultrasonic machining (Micro-USM) as an efficient process for micromachining of hard and brittle materials. Process parameters such as ultrasonic vibration amplitude, static load, type of tool material, type and size of abrasive particles and slurry concentration can influence the surface quality. How...