• Journal of The Korean Astronomical Society
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• v.29 no.spc1
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• pp.11-14
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• 1996

Super-inflation driven by dilaton/moduli kinetic energy is naturally realized in compactified string theory. Discussed are selected topics of recent development in string inflationary cosmology: kinematics of super-inflation, graceful exit triggered by quantum back-reaction, and classical and quantum power spectra of density and metric perturbations.

• Journal of The Korean Astronomical Society
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• v.29 no.spc1
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• pp.283-284
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• 1996

Wormhole solutions of general theory of relativity are known to violate energy conditions. We have considered the possibility of having wormhole solutions in Brans-Dicke theory which is the prototype of scalar-tensor theories of gravity.

• 한국초전도학회:학술대회논문집
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• v.14
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• pp.32-32
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• 2004

• 한국초전도학회:학술대회논문집
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• v.14
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• pp.44-44
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• 2004

• 한국초전도학회:학술대회논문집
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• 2007.07a
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• pp.19-19
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• 2007

• Proceedings of the Korean Magnestics Society Conference
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• 2011.12a
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• pp.102-102
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• 2011

• Bulletin of the Korean Mathematical Society
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• v.37 no.3
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• pp.419-428
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• 2000

This work presents a new construction of Mayer-Vietoris sequence using techniques from torsion theory and including the classical case as an example.

• Journal of the Optical Society of Korea
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• v.18 no.2
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• pp.146-150
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• 2014

We propose an experimental holographic imaging scheme combining compressive sensing (CS) theory with digital holography in phase-shifting conditions. We use the Mach-Zehnder interferometer for hologram formation, and apply the compressive sensing (CS) approach to the holography acquisition process. Through projecting the hologram pattern into a digital micro-mirror device (DMD), finally we will acquire the compressive sensing measurements using a photodiode. After receiving the data of two holograms via conventional communication channel, we reconstruct the original object using certain signal recovery algorithms of CS theory and hologram reconstruction techniques, which demonstrated the feasibility of the proposed method.

• Proceedings of the Korean Magnestics Society Conference
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• 1991.05a
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• pp.11-12
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• 1991

• Proceedings of the Korean Magnestics Society Conference
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• 2012.05a
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• pp.80-80
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• 2012