• Journal of the Korean Ceramic Society
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• v.37 no.1
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• pp.63-69
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• 2000

Electrically-induced strain(S) and polarization(P) for Pb(Sc1/2Nb1/2)O3-PbTiO3(1-x)PSN-xPT) crystalline solutions were studied. From the compositional dependence of S and P we could observe two maximum values at x=0.10 and x=0.425. It is considered that PSNT10(x=0.10) composition is the structural phase boundary to indicate the variable order-disorder[VOD] region. PSNT(x=0.425) composition is the morphotropic phase boundary[MPB] to indicate the rhombohedral to tetragonal phase transition. Higher S (0.437%) and P (0.3974$\mu$C/$\textrm{cm}^2$) values were attained by the La substitution (5 wt%) at Pb site in the MPB composition of 57.5PSN-42.5PT.

• 한국문화재보존과학회:학술대회논문집
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• 2007.05a
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• pp.29-30
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• 2007

• Asian-Australasian Journal of Animal Sciences
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• v.2 no.3
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• pp.317-318
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• 1989

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2004.11a
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• pp.355-356
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• 2004

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2009.10a
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• pp.436-437
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• 2009

• Journal of the Korean Ceramic Society
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• v.29 no.1
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• pp.53-59
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• 1992

Piezolectric ceramics of Pb(Zr, Ti)O3 system were fabricated and used for shear type accelerometer. Among compositions studied, La+3 and Nb+5 doped composition showed the highest d15, and K15 and the morphotropic phase boundary (M.P.B) was shifted toward rhombohedral site.

• 한국문화재보존과학회:학술대회논문집
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• 2006.04a
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• pp.179-182
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• 2006

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2010.04a
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• pp.175-176
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• 2010

• Journal of the Korean housing association
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• v.8 no.3
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• pp.39-48
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• 1997

The official residences were built for japanese official who had lived in Taegu province during the japanese colonial period. The purpose of this study is to find the prototypes of site and plan patterns for the official residences in Taegu province during the japanese colonial period. Their site-plans are classified into either individual and row type depending on the building's composition. These each have three and two branch types assording to the location of the innercourt and main entrance. The floor plans are classified into the four types according to the location of the corridor.

• Journal of the Speleological Society of Korea
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• no.61
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• pp.17-46
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• 2000

Mt. Jabyeong(872.5m), limestone region in the Taebaek mountains, located in 37° 32'N, 129° 25'E and in Sangye-ri, Okgye-myeon, Gangreung-si and Samok-ri, Imgye-myeon, Jeongseon-gun, Gangwon-do. The purposes of this study were to investigate the floristic composition from 1997 to 1998 in Mt. Jabyeong and report the distribution of Korean endemic plants, rare and vulnerable plants, calcicoles and calci fuges, The vascular plants in this area were composed of 93 families, 313 genera, 3 subspecies, 57 varieties, 13 forms, 495 species, totaling 568 taxa. Among the vascular plants, 21 taxa were Korean endemic plants and 7 taxa were rare and vulnerable plants. Calcicole and calcifuge plants in this study area were composed of 21 families, 30 genera, 36 species and 14 families, 15 genera, 17 species. The soil pH values of study site in Mt. chabyoung were ranging 7.4∼8, which showed that this site was a mostly limestone area with alkaline soil. And soil depth was formed to a relative thin layer, mostly 2～4cm thickness. This site showed high content of moisture and organic matter which were ranging 40-45% and 15-25%, respectively.