AbstracL The Iarge.de dynamics of a reaction front in a turbulent Bow in the limit of large Reynolds number has been sNdied starring from the K o l m o g o r o v -P e u o v s l s~~o " equation, modified by the random convection term. Random velocity has been assumed to be

To date, various connection rerouting methods for connection-oriented mobile networks have been proposed. The previous methods, however, are limited to specific topologies or environments. In this paper, we propose the connection-information-based rerouting widely applicable to various connection-oriented mobile networks. This method requires neither a specific topology nor a complex connection, enables fast rerouting, provides appropriate route optimality, and can be extended easily.

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For the first time, two-channel concentric-core optical fibers consisting of a broadband central single-mode lightguide for the wavelength of 1.3 tm and a ring multimode lightguide, lOim in thickness, have been developed. The outer fiber diameter is 125 rim. The fibers are meant for two-channel communication systems. Optical losses of less than 1 dB/km for the both cores have been achieved, the channel-to-channel crosstalk being less than -40 dB. A dependence of optical losses in the ring lightguide on the radius of curvature and strain of a coiled fiber has been revealed. The optimal refractive index profile of the ring core has been found to minimize optical losses in coiled and straightened fibers. A fiber-optic communication link, 12 km in length, has been constructed, and the loss distribution along the link has been investigated using the OTDR-technique. It is shown that there is no distributed coupling between the two cores and the channels remain independent even at large distances.