• Journal of Korean Library and Information Science Society
• /
• v.47 no.4
• /
• pp.559-578
• /
• 2016

According to the rapid increase of foreign immigrants, South Korea recently has grown more and more interested in the acceptance of cultural diversity in diverse fields at the whole society. Korea Library Association also has sought the way of multicultural service for foreign immigrants in libraries and many previous researches has suggested those. This paper examines the ways in which small community library functions for foreign immigrants, analyzing on the case of multicultural library located in Wongok-dong, Ansan-si, where about 80% population of residents are foreign immigrants. Ansan multicultural library has two functions in the community. One is the educational place for helping immigrants' settlement and adaptation of South Korea. The other is the cultural place for social integration between immigrants and South Koreans based on mutual understanding and communication. Ultimately this paper shows how values small library in the community has significantly for foreign immigrants.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2018.05a
• /
• pp.193-194
• /
• 2018

Tn this present study, the superhydrophobic surface was developed on the cement mortar surface by using water repellent materials. For better superhydropohicity, it was developed by using silane as binder and which was enriched with filler materials of SiO₂ and TiO₂ nanomaterials. Those nanomaterials enriched with silanes were admixed in cement mortar during casting time and another was coated on the cement mortar surface. The water repellent properties of spray coated and admixed cement mortars were evaluated by measuring the contact angle which was compared with normal cement mortar.

• Proceedings of the KIEE Conference
• /
• 2005.11a
• /
• pp.68-70
• /
• 2005

$SiO_2$ thin films are fabricated using sol-gel method and dipping method. Relative dielectric constant of thin films decreases a little according to increasing the measuring frequency. Tan ${\delta}$ of thin films increases a little below 100kHz and it increases rapidly over 100kHz.

• Journal of the Korean Crystal Growth and Crystal Technology
• /
• v.6 no.4
• /
• pp.627-639
• /
• 1996

Charateristics of Ansan and Boryong coal fly ashes collected at different seasons were investigated for the recycling them as ceramic raw materials. The effect of pH treatment on the classification of Ansan coal fly ashes by elutriation was discussed. Charateristics of ansan and boryong coal fly ashes were not significantly changed with power plants and seasons. major crystalline phases were mullite and quartz. These results suggested that coal fly ashes cab be used as raw materials instead of clay minerals. However, particle size distribution was very broad from a few $\mu\textrm{m}$ to over $100\;\mu\textrm{m}$. Especially, ansan coal fly ashes have various morphologies. Therefore, coal fly ashes should be classified before using as raw materials. Because of higher dispersion by pH treatment, spherical cenospheres were mainly collected in the 4th step and particle size distribusion was also decreased by elutriation for the ansan coal fly ashes. The specific surface area of the sample collected in the 4th step was $1.24\;m^{2}/g$ which was smaller than that of not treated Ansan coal fly ashes.

• Korean Journal of Plant Taxonomy
• /
• v.41 no.3
• /
• pp.280-286
• /
• 2011

The natural habitats and distribution of five rare plants were recently discovered in Korea. Salomonia oblongifolia DC., which grows in mountain wetlands, was found in Gijang-gun, Busan, Gokseong-gun, Jeollanam-do, and Shinan-gun, Jeollanam-do. Glaux maritima var. obtusifolia Fernald, which grows along the coast, was found in Yangyang-gun, Gangwon-do, Pohang-si, Gyeongsangbuk-do and Buk-gu, Ulsan. Tillaea aquatica L. and Limosella aquatica L., which was previously not known to be present in Korea, were discovered in Gijang-gun, Busan for the first time. Apocynum lancifolium Russanov, which has a narrow distribution range in Korea, was also found in Samcheok-si, Gangwon-do, Ansan-si, Gyeonggi-do, Siheung-si, Gyeonggi-do, Jung-gu, Incheon, Yeongdeok-gun, Gyeongsangbuk-do and Shinan-gun, Jeollanam-do.

• Transactions on Electrical and Electronic Materials
• /
• v.7 no.2
• /
• pp.67-71
• /
• 2006

In this paper, we have investigated the structure and dielectric properties of the $(Ba_{0.6}Sr_{0.4})TiO_3$ (BST) thin films fabricated on MgO(100)/Si substrate by an alkoxide-based sol-gel method. Both the structure and morphology of those films were analyzed by x-ray diffraction (XRD) and atomic force microscope (AFM). For the MgO(100)/Si substrate, the BST thin films exhibited highly (100) orientation. The highly (100)-oriented BST thin films showed high dielectric constant, tunability, and figure of merit (FOM). The dielectric constant, dielectric loss and tunability of the BST thin films annealed at $700^{\circ}C$ deposited on the MgO(100)/Si substrate measured at 10 kHz were 515.9, 0.0082, and 54.3%, respectively.

• Proceedings of the Safety Management and Science Conference
• /
• 2000.11a
• /
• pp.187-193
• /
• 2000

The purpose of this study was to reduce the chronical low back pain for the manual material handlers. The objectives of this study was to: (1) examine lifting variables, (2) analyze collected data, and (3) suggest lifting redesign recommendations in workplace. The data were collected in A company, manufactures various paints in Si-Wha industrial complex, Kyunggi-Do. It was found that Sb(horizontal distance), Sc(vertical distance), 54(travelling distance) and Sf(frequency) were significant at the 0.01 level and Sa(weight) was significant at the 0.05 level.

• Journal of the speleological society of Korea
• /
• no.5
• /
• pp.5-14
• /
• 1997

This research is to survey the possibility of developing Yoryang coral cave as the local tour site uitable for local self-government era of Kangwon province, with relation to the tour development of Odaesan and Tebagsesan. This cave is only coral one founded in Asia and has very high speleological, and academic values. The people in the mining village can live a safe and rich life by getting two more jobs through developing the tour site in Yoryang coral cave round. The tour train running between Kangnung and Wonju makes coral cave as the local tour site, the beneficial condition of developing Yoryang.

• Proceedings of the KIEE Conference
• /
• 2004.11a
• /
• pp.183-186
• /
• 2004

The metal-ferroelectric-insulator-semiconductor(MFIS) capacitors were fabricated using a metalorganic decomposition (MOD)method. The $CeO_2$ thin films were deposited as a buffer layer on Si substrate and $Bi_{3.25}La_{0.75}Ti_3O_{12}$ (BLT) thin films were used as a ferroelectric layer. The electrical and structural properties of the MFIS structure were investigated by varying the $CeO_2$ layer thickness. The width of the memory window in the capacitance-voltage (C-V)curves for the MFIS structure decreased with increasing thickness of the $CeO_2$ layer. Auger electron spectroscopy (AES) and transmission electron microscopy (TEM) show no interdiffusion by using the $CeO_2$ film as buffer layer between the BLT film and Si substrate. The experimental results show that the BLT-based MFIS structure is suitable for non-volatile memory field-effect-transistors (FETs) with large memory window.

• Korean Journal of Plant Taxonomy
• /
• v.47 no.3
• /
• pp.180-188
• /
• 2017

We evaluated the actual distribution, present status, and number of remnant individuals of Korean Sagittaria aginashi (Alismataceae) based on herbarium specimens and field surveys. We also reidentified Korean S. aginashi by analyzing sequences of the internal transcribed spacer (ITS) region. We found nine specimens of S. aginashi in herbaria from four localities housed at the Osaka Museum of Natural History (OSA) and at the Korea National Herbarium (KH). During our field research, we could not confirm the current statuses of two collection localities (Taereung and Ansan-si), though this was not the case for Ulsan-si. In addition, we found two new localities in Ulsan-si and Yangsan-si. These three remnant populations are distributed in wetlands in mountainous areas (elev. 480-740 m). With regard to the number of flowering and immature individuals in the three localities, there were <50 and <2,000, respectively, in total. ITS sequences demonstrated that the sequences of Korean and Japanese S. aginashi are uniform and distinct from other Sagittaria species. These results indicate that S. aginashi is a rare and threatened species in Korea. It should be listed as an endangered species on the Korean Red List and requires urgent protection by conservation programs, including the extensive surveys of other possible natural habitats.