Fiber-diffraction Interferometer using Coherent Fiber Optic Taper

We present a fiber-diffraction interferometer using a coherent fiber optic taper for optical testing in an uncontrolled environment. We use a coherent fiber optic taper and a single-mode fiber having thermally-expanded core. Part of the measurement wave coming from a test target is condensed through a fiber optic taper and spatially filtered from a single-mode fiber to be reference wave. Vibration of the cavity between the target and the interferometer probe is common to both reference and measurement waves, thus the interference fringe is stabilized in an optical way. Generation of the reference wave is stable even with the target movement. Focus shift of the input measurement wave is desensitized by a coherent fiber optic taper

Atypical Development of Children from Multicultural Families in Korean Rural Areas

AbstractThe aim of this study was to explore overall developmental status of young children from multicultural families. 290 kindergarten children were involved (147 from multicultural families and 143 from typical Korean families). The result indicated significantly lower levels of performance on overall development of children from multicultural families than children from typical Korean families. It also suggested that delayed language development of children from multicultural families negatively affected their cognitive development, which then influenced higher aggression indirectly through their low self-respect and low self-control. These findings indicated latent atypical development of children from multicultural families

Port Selection Criteria for the Korea-China Train Ferry

The Korea-China Train Ferry can be one option to enter into Eurasia and a meaningful way to extend the route forlogistics enterprise and manufacturers of Korea to reach the broaderglobal marketalong with specific access to China. Under this scenaris, this study is designed to look at the progress and status of the Korea-China Train Ferry project as anopportunity for Korea to build a path towards Eurasia and to review factors and opinions to consider in port selectionbased on in-depth interviewswith industry participants andexperts. It alsoaims to discuss ideas for a Korea-Chinalogistics cooperative system. For the train ferry's success, agreements between Korea and China are essential to ensure consistency inbase ports and customsclearance procedures and long-term preparation should be made in the first phase to build the framework for the Korea-China Train Ferry operations