Origin of electromagnon excitations in \textit{R}MnO$_3$ (2008)
Aguilar, R. Valdés, Mostovoy, M., Sushkov, A. B., Zhang, C. L., Choi, Y. J., Cheong, S-W., ...
The origin of electromagnon excitations in cycloidal \textit{R}MnO$_3$ is explained in terms of the Heisenberg coupling between spins despite the fact that the static polarization arises from the...
Data-based query reformulation to bolster scenario-specific retrieval of biomedical documents (2008)
In this paper, I propose a data-based query expansion technique to support scenario specific retrieval in the medical domain. A data-based query expansion technique takes advantage of the UMLS...
Multiferroicity in the spin-1/2 quantum matter of LiCu2O2 (2008)
Rusydi, A., Mahns, I., Mueller, S., Ruebhausen, M., Park, S., Choi, Y. J., ...
Multiferroicity in LiCu2O2 single crystals is studied using resonant soft x-ray magnetic scattering, hard x-ray diffraction, heat capacity, magnetic susceptibility, and electrical polarization. Two...
Spin phonon coupling in frustrated magnet CdCr$_2$O$_4$ (2007)
Aguilar, R. Valdés, Sushkov, A. B., Choi, Y. J., Cheong, S-W., Drew, H. D.
The infrared phonon spectrum of the spinel CdCr2O4 is measured as a function temperature from 6 K to 300K. The triply degenerate Cr phonons soften in the paramagnetic phase as temperature is lowered...
Colossal magnon-phonon coupling in multiferroic Eu$_{0.75}$Y$_{0.25}$MnO$_3$ (2007)
Aguilar, R. Valdés, Sushkov, A. B., Zhang, C. L., Choi, Y. J., Drew, H. D.
We report the spectra of magnetically induced electric dipole absorption in Eu$_{0.75}$Y$_{0.25}$MnO$_3$ from temperature dependent far infrared spectroscopy (10-250 cm$^{-1}$). These spectra, which...
Saltveit, Mikal E, Choi, Y J, Tomas-Barberan, F A
Wounding, as during excision and preparation of lettuce (Lactuca sativa L.) leaf tissue for salads, induces the synthesis and accumulation of phenolic compounds that participate in subsequent...
Micro Deburring Technology Using Ultrasonic Vibration with Abrasive (2004)
Choi, H Z, Lee, S W, Kim, G H, Choi, Y J, Ko, Sung-Lim
Burrs have been defined as undesirable projections of material beyond the edge of a workpiece during machining. Burrs are created around the edge of workpiece due to plasticity during mechanical...
Topology of the Galaxy Distribution in the Hubble Deep Fields (2000)
Park, Changbom, Gott III, J. Richard, Choi, Y. J.
We have studied topology of the distribution of the high redshift galaxies identified in the Hubble Deep Field (HDF) North and South. The two-dimensional genus is measured from the projected...
Lee, W K, An, Y S, Kim, K H, Kim, S H, Song, J Y, Ryu, B D, ...
In this study, a Helicobacter pylori-Escherichia coli shuttle vector was constructed for transferring DNA into H. pylori. The smallest cryptic plasmid (1.2 kb), pHP489, among those harbored by 77 H....
Kim, H, You, S, Foster, L K, Farris, J, Choi, Y J, Foster, D N
We have used differential display PCR to study altered gene expression in immortalized chicken embryo fibroblasts (CEFs) that have been established in our laboratory. This technique resulted in the...
Lee, W K, An, Y S, Kim, K H, Kim, S H, Song, J Y, Ryu, B D, ...
In this study, a Helicobacter pylori-Escherichia coli shuttle vector was constructed for transferring DNA into H. pylori. The smallest cryptic plasmid (1.2 kb), pHP489, among those harbored by 77 H....
Kim, H, You, S, Foster, L K, Farris, J, Choi, Y J, Foster, D N
We have used differential display PCR to study altered gene expression in immortalized chicken embryo fibroblasts (CEFs) that have been established in our laboratory. This technique resulted in the...