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분광타원법을 이용한 스퍼터된 Ta<sub>2</sub>O<sub>5</sub> 박막의 광학적 특성
김선희,이의현,정인우,현장훈,이성용,강만일,류지욱,Kim, Sun-Hee,Lee, Eui-Hyun,Jung, In-Woo,Hyun, Jang-Hoon,Lee, Sung-Young,Kang, Man-Il,Ryu, Ji-Wook 한국진공학회 2009 Applied Science and Convergence Technology Vol.18 No.2
본 연구에서는 RF 파워, 기판의 종류, 산소분압비의 다양한 제작조건으로 RF 마그네트론 스퍼터링법을 이용하여 $Ta_{2}O_{5}$ 박막을 제작하였다. 제작된 $Ta_{2}O_{5}$ 박막의 분석을 위해 위상변조방식의 분광타원계를 이용하여 타원상수를 $1.0{\sim}4.0eV$ 영역에 걸쳐 측정하였고, Tauc-Lorentz 분산관계식을 이용하여 박막의 두께와 광학상수를 분석한 결과 제작조건에 따른 광학상수의 크기와 분간형태의 변화가 나타났다. 또한 분산관계식에 의해 분석된 박막의 두께와 광학상수를 이용하여 얻은 투과율 스펙트럼을 UV-Vis 분광광도계에 의해 측정된 값과 비교하여 타원상수 분석을 통해 얻은 두께와 광학상수의 신뢰성을 확인하였다. $Ta_{2}O_{5}$ thin films were deposited by RF magnetron sputtering method under various RF power, substrates and oxygen partial pressure. Elliptic constants were measured by using a phase modulated spectroscopic ellipsometer and analyzed with the Tauc-Lorentz dispersion formula and best fit method in the range of 310$\sim$1239 nm. Also, transmittance spectra of the films were measured by UV -Vis spectrophotometer in the range of 300$\sim$1000 nm. From these data, thickness of $Ta_{2}O_{5}$ and surface layer were analyzed and changes of magnitude and shape of dispersion of optical constants according to fabricated conditions were measured. Also, to evaluate thickness and optical constants data analyzed by Tauc-Lorentz dispersion formula, the measured and analyzed transmittance spectra were compared. In result of the comparison, two spectra were in good agreement each other. Accordingly, it indicates that our ellipsometric analysis is valid.
김선희 미래영어영문학회 2010 영어영문학 Vol.15 No.2
A new English or British nationalism emerges in the war with revolutionary France in 1790s and 1810s. Austen writes Persuasion at a moment in which the bureaucratic age is coming. However, the trends towards greater national cohesion and uniformity are bound to strengthen the control and hegemony of Britain's ruling class. Criticizing aristocratic communities, Austen offers the navy as an alternate to create social and national cohesion. And she suggests that no individual and no single author can imagine the nation in which he or she lives, because for her the nation has no content. She offers a new form of nation that operates through state agencies like the British navy because England from the 1790s was a jittery nation and the English do have a regional identity of their own during the Napoleonic wars. Therefore, Austen argues that the navy better fulfills the duties and obligations that aristocracy neglect, and suggests administrative agencies such as the British navy define individuals' obligations to the nation as a whole and causes them their nationality. Austen shows a larger social change in marrying her heroine Anne into Captain Wentworth of the Royal navy in Persuasion. She also shows that the wives of the naval officers as members of the organization of the navy, and emphasizes that women experience nationality in a familiar context because the national and the domestic are inextricably fused. As Austen's famous description of Anne's "alarm" as a "tax" shows, Anne realizes that she belongs to a nation that may make demands on her. Furthermore, Austen argues the administrative structure like the navy provides a foundational core for communal national life. Finally, Austen guarantees the navy's very "national importance" in British society. And I read Austen's emphasis of the navy's administrative structure one register of her claims for the reforms to create social and national cohesion.
대구방언 악센트의 음향음성학적 분석 : 1음절단어와 조사접속
김선희 水原大學校 2020 論文集 Vol.34 No.-
As a result of observing the characteristics of pitch in the form of a single syllable and connected with the particle in Daegu dialect, the pitches as High, Low, Rising, Falling are set for each word, and the function of semantic distinction works according to the difference in pitch. The duration of vowels does not have the function of discriminating the meaning of words, but is incidental to the pitch pattern, and phonetically, the duration varies according to the syllable structure and number of syllables.