Abstract: Disclosed are an apparatus and a method for path finding in multimodes. The apparatus for path finding in multimodes includes: a location-tracking unit that tracks current locations of a plurality of terminals to generate a plurality of pieces of location information; a path-finding unit that receives a path-finding request for specific destinations common to the plurality of terminals from the plurality of terminals to find paths to the specific destinations from the location of each terminal at the time of the path-finding request and generate the plurality of pieces of path information; and a sharing server that transmits the plurality of pieces of path information and the location information of the plurality of terminals on the found paths to the plurality of terminals.

Abstract: Provided is a bend-insensitive optical fiber including a core centered at the optical fiber, a cladding surrounding the core and having a lower refractive index than the core, a coating layer surrounding the cladding, and a region formed in the cladding and having a lower refractive index than the cladding, wherein the coating layer has a multilayered structure and a total outer diameter of 240 ?m or less, and a bend-insensitive optical cable comprising the same.

Abstract: Disclosed are an electromagnetic wave absorber using a dielectric loss sheet, a method for fabricating the same, and a wind turbine blade having an electromagnetic wave function. The electromagnetic wave absorber comprises: a support layer for providing a resonant space of electromagnetic waves; a highly conductive backing layer assigned to a back surface of the dielectric support layer; and a dielectric lossy composite sheet layer formed on a front surface of the dielectric support layer, said dielectric lossy composite sheet layer having such a dielectric permittivity so as to generate a resonant peak with the electromagnetic waves reflected from the highly conductive backing layer.

Abstract: A fixed angle hybrid centrifuge rotor includes an outer portion of composite material reinforced with fiber at least along a peripheral direction, an inner portion having stiffness less than ? of stiffness of the outer portion and provided with a plurality of slots receiving specimens, and a reinforcer of composite material mounted into the slots of the inner portion, the reinforcer fabricated from material having higher stiffness than that of the inner portion and reinforced with fiber along at least peripheral direction of the slot. The reinforcer penetrates the inner portion and at least a part of the reinforcer downwardly protrudes from the inner portion. The rotor can rotate at a high speed and provides improved safety.

Abstract: Disclosed are an apparatus and a method for path finding in multimodes. The apparatus for path finding in multimodes includes: a location-tracking unit that tracks current locations of a plurality of terminals to generate a plurality of pieces of location information; a path-finding unit that receives a path-finding request for specific destinations common to the plurality of terminals from the plurality of terminals to find paths to the specific destinations from the location of each terminal at the time of the path-finding request and generate the plurality of pieces of path information; and a sharing server that transmits the plurality of pieces of path information and the location information of the plurality of terminals on the found paths to the plurality of terminals.