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Due to characteristic properties of silver (Ag), Ag nanoparticles have attracted unprecedented attention invarious scientificfields such as sensors, catalysts, antibacterial materials, and so on. To obtain tailor-madefunctionalities of Ag nanoparticles with desired physicochemical properties, proper fabrication process isneeded to control their sizes, morphologies or arrangements by hybridization with different components,immobilization on solid struts, and etc. Herein, we suggest a facile synthetic route to obtain Ag-pillaredmesoporous nanoclays through simultaneous crystal growth and arrangement of Ag nanoplates with thehelp of a 2-dimensional inorganic template. To obtain Ag-pillars, layered silver-thiolate self-assemblywas exfoliated to monolayers (Ag precursor) and then in-situ hybridized with layered double hydroxidein a layer-by-layer manner. Through reductive calcination, silver thiolate transformed to Ag-pillars whichgrew in nanoplate morphology with well-arrangement in confined space of nanoclays. Crystal structure,morphology, and pore structure of Ag-pillars in nanoclays were systematically characterized. Surfaceenhanced Raman scattering effect of arranged Ag-pillars on metal oxide substrate obtained uponcalcination was also investigated with rhodamine 6 G.
Numerous water disasters have recently occurred all over the world, including South Korea, due to global climate change in recent years. As water-related disasters occur extensively and their sites are difficult for people to access, it is necessary to monitor them using satellites. The Ministry of Environment and K-water plan to launch the next-generation medium satellite No. 5 (water resource/water disaster satellite) equipped with C-band synthetic aperture radar (SAR) in 2025. C-band SAR has the advantage of being able to observe water resources twice a day at a high resolution both day and night, regardless of weather conditions. Currently, RADARSAT-2 and Sentinel-1 equipped with C-band SAR achieve the purpose of their launch and are used in various environmental fields such as forest structure detection and coastline change monitoring, as well as for unique purposes including the detection of flooding, drought and soil moisture change, utilizing the advantages of SAR. As such, this study aimed to analyze the characteristics of the next-generation medium satellite No. 5 and its application in environmental fields. Our findings showed that it can be used to improve the degree of precision of existing environmental spatial information such as the classification accuracy of land cover map in environmental field works. It also enables us to observe forests and water resources in North Korea that are difficult to access geographically. It is ultimately expected that this will enable the monitoring of the whole Korean Peninsula in various environmental fields, and help in relevant responses and policy supports.
( Hyeon Gyeong Yoo ), ( In Young Chang ), ( Se Rah Lee ), ( Soon Jin Choi ), ( Hyun Keol Pyo ), ( Ji Yun Kim ), ( Oh Sang Kwon ), ( Jin Ho Chung ), ( Kwang Hyun Cho ), ( Hee Chul Eun ), ( Kyu Han Kim ) 대한피부과학회 2005 초록집 Vol.43 No.20
This paper attemps to invstigate characteristics of puzzle mystery texts and to analyze the text structures of the genre. This paper is presented in three parts. The first part deals with characteristics of puzzle mystery genre. They are intentionality, intertextuality, similarity of situation, schema form and meta-text. The second part shows the character roles of puzzle mystery. Among them, the Narrator plays very important role because he/she present the surface structure and conceals the inward structure. In the third part, the types of the sub-texts of puzzle mystery are analyzed. The surface structure is arranged by linear structure, but the inward structure non-linearly. Some sub-texts of the surface structure can be transformed into different texts and can be rearranged to the inward structure. These works are activated by some hidden clues distributed in the whole text.
The goal of this research is to illuminate the macro-structures of novel texts by analyzing the chapter titles of novel texts. Chapter title is very different from main title as a part of text structure. Main title is external-subtext but chapter title is internal subtext. The forms of chapter title are not patterned and show diverse variations. In many case, chapter markers are used at the boundaries of chapters in novels instead of chapter title. Also I present some functions of chapter title; framing for reader, division/combine, foregrounding, independent strategies as a continuum. Chapter title makes frame to interpret a text and it shows some difference from title of newspaper article. The main function of chapter title is division and combine of text. In some particular text-genres like mystery fiction, chapter title performs special functions independently.