Microorganisms release a diversity of organic compounds that couple interspecies metabolism, enable communication, or provide benefits to other microbes. Increased knowledge of microbial metabolite production will contribute to understanding of the dynamic microbial world and can potentially lead to new developments in drug discovery, biofuel production, and clinical research. Nanospray desorpt...

The spin-coated thin-film morphology of poly(4-vinylpyridine) has been studied by AFM; the dark lines or disks (circular holes) in the AFM height images correspond to the depressed regions. An epitaxy-like ‘‘nano-trench’’ pattern was observed in the noncrystalline polymer film deposited on the crystalline graphite substrate. The transition from surface-templated to isotropic dewetting occurs du...

We investigate analytically and numerically nonlinear vortex spin torque oscillator dynamics in a circular magnetic nanodot induced by a spin-polarized current perpendicular to the dot plane. We use a generalized nonlinear Thiele equation including spin-torque term by Slonczewski for describing the nanosize vortex core transient and steady orbit motions and analyze nonlinear contributions to al...

Unsymmetrical buckling of nonuniform circular plates with elastically restrained edge and subjected to normal pressure is studied in this paper. The asymmetric part the solution sought terms multiples harmonics angular coordinate. A numerical method employed obtain lowest load value at which waves circumferential direction can appear. effect material heterogeneity boundary on examined. For a pl...

The problems of optimal design metal structures are usually formulated as the problem finding such values selected parameters that provide smallest (or largest) value optimality criterion in area admissible solutions. In most works on optimization structures, parametric considered, limited by preliminary assignment a constructive form with possibility changing its parameters. To solve these pro...