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임진왜란기 경상도 자인 의병장 최문병의 활동과 그 성격
서강덕 역사교육학회 2020 역사교육논집 Vol.75 No.-
Imjinwaeran, which broke out in April, 1592, was a major event that brought many changes to Joseon. There has been a lot of interest in the research on the active roles of the army raised for the cause of justice, and attention has recently been paid to the process of overcoming the war based on the collaboration between the royal forces and the army raised for the cause of justice. This study focuses on Jain in Gyeongsang Province. In those days, Jain belonged to the Gyeongju-bu military system. In Jain, a local army was raised for the cause of justice in the early days of the war when the national system did not operate smoothly. The emergence and roles of Choi Mun-byeong (1557~1599), who was a general of the army raised in Jain for the cause of justice, offered some clues to figure out the nature and characteristics of the army's activities in minor areas. The biggest characteristic of his activities in the army raised for the cause of justice was the united front that he formed and used continuously with generals of the army raised for the cause of justice in other areas. Under the goal of defeating the Japanese troops stationed in the Yeongcheon Fortress, Choi marched for Yeongcheon and Sinnyeong and formed a united front with several generals of armies raised for the cause of justice. He also took the heavy responsibilities of Woocheong and played active roles in the process of the war, winning back the Yeongcheon Fortress. As the command system of Gyeongju-bu was restored around the royal forces, Choi developed united front activities with the royal forces. His case sheds light on an aspect of a strategy used by generals of armies raised for the cause of justice in minor areas to overcome the limited size of their activities.
백남섭,이동현,서강덕,김환규,김용희,노수균 한국고분자학회 2009 Macromolecular Research Vol.17 No.9
A series of inert and photo-stable Er(III)-encapsulated complexes based on π-extended dendritic anthracene ligands bearing G3-aryl-ether dendron ([G3-AnX]-CO2H), which retain different π-bridging systems, such as single (X= S), double (X= D) and triple (X= T) bonds was designed and synthesized to establish the structure- property relationship. The near infrared emission intensities of Er(III)-encapsulated complexes were enhanced dramatically by increasing the π-conjugated extension of anthracene ligands. The time-resolved luminescence spectra show monoexponential decays with a lifetime of 2.0~2.4 ms for Er3+ ions in thin films, and calculated intrinsic quantum yields of Er3+ ions are in the range of 0.025~0.03%. As a result, all Er(III)-encapsulated dendrimer complexes exhibit the near IR emission with the following order: Er3+-[G3-AnD]3(terpy) > Er3+-[G3-AnS]3(terpy) ≈ Er3+-[G3-AnT]3(terpy), because Er3+-[G3-AnD]3(terpy) has a higher relatively spectral overlap J value and energy transfer efficiency. In addition, the lack of detectable phosphorescence and no significant spectral dependence of the π-extended anthracene moieties on the solvent polarity support energy transfer from their singlet state to the central Er3+ ion taking place in Er3+-[G3-AnX]3(terpy).
최성호,김경희,서강덕,오성대,오상협,우진춘,이광필,A.Gopalan 한국분석과학회 2006 분석과학 Vol.19 No.4
PVP-protected Ag, Pd and Pt50-Ru50 colloids were prepared independently by using γ-irradiation andelectron beam (EB) at ambient temperature. UV-visible spectra of these colloids show the characteristic bands(TEM) experiments were used to know the morphology of nanoparticles prepared by γ-irradiation and EB. Thesize of Ag, Pd, and Pt50-Ru50 nanoparticles prepared by γ-irradiation was ca. 13, 2-3, 15 nm, respectively. While,the size of Ag, Pd, and Pt50-Ru50 nanoparticles prepared by EB was ca. 10, 6, and 1-3 nm, respectively. Cyclicthe modifications in the surface as a result of immobilization.