Subcontracting principles of interaction between enterprises of different sizes at a regional level

This paper reviews peculiarities of interaction between enterprises of different sizes at a regional level in Russia on the basis of subcontracting. It defines basic conditions and organizational forms of such interaction related with circumstances of regional economic development. The paper also presents a comparison of American and Japanese subcontracting models considering possibility of borrowing certain specific features for the Russian conditions. It lists stable structures of interaction between small- and large-sized enterprises considering possibility of changing roles in integration schemes. On example of the Nizhny Novgorod region specializing in machine-building and metalworking, the most important peculiarities and perspective lines of subcontracting development in the medium run are reviewed.Subcontracting, enterprises of different sizes, small business, subcontracting models, regional interaction problems of sectors of different sizes, roles of large and small enterprises in interaction., Community/Rural/Urban Development, Research and Development/Tech Change/Emerging Technologies, R10, R11,

Residual resistivity due to wedge disclination dipoles in metals with rotational plasticity

The residual resistivity $\rho$ in metals caused by wedge disclination dipoles is studied in the framework of the Drude formula. It is shown that $\rho\sim L^{-p}$ with $p=3$ for biaxial and $p=2$ for uniaxial dipoles ($L$ is a size of dipole arm)Comment: 12 pages, 2 figure

Towards the grain boundary phonon scattering problem: an evidence for a low-temperature crossover

The problem of phonon scattering by grain boundaries is studied within the wedge disclination dipole (WDD) model. It is shown that a specific q-dependence of the phonon mean free path for biaxial WDD results in a low-temperature crossover of the thermal conductivity, $\kappa$. The obtained results allow to explain the experimentally observed deviation of $\kappa$ from a $T^3$ dependence below $0.1K$ in $LiF$ and $NaCl$.Comment: 4 pages, 2 figures, submitted to J.Phys.:Condens.Matte

Mode Properties of Flat-top Silver Nano-ridge Surface Plasmon Waveguides

We investigate surface plasmon modes supported by flat-top silver nano-ridges. We calculate the mode electromagnetic field distribution, the dispersion curve, the travel range, and the figure-of-merit of the nano-ridge mode. We find that the nano-ridge surface plasmon modes are quasi-TEM modes with longitudinal field components three orders of magnitude smaller than the transverse field components. The quasi-TEM nature of mode profiles reveals that the propagation of free electron oscillations on the top of the nano-ridge contributes mainly to the tightly confined ridge mode. We also find that as the width of the nano-ridge decreases, the ridge mode becomes more tightly confined on the ridge top. As the width of the nano-ridge increases, the nano-ridge mode approaches two decoupled right-angle wedge plasmon modes.Comment: 23 pages, 9 figures, journal articl