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TiS$i_2$ 박막의 열안정성에 미치는 막 스트레스의 영향
김영욱,김영욱,고종우,이내인,김일권,박순오,안성태,이문용,이종길,Kim, Yeong-Uk,Kim, Yeong-Uk,Go, Jong-U,Lee, Nae-In,Kim, Il-Gwon,Park, Sun-O,An, Seong-Tae,Lee, Mun-Yong,Lee, Jong-Gil 한국재료학회 1993 한국재료학회지 Vol.3 No.1
단결정 실리콘위에 스퍼터법으로 증착된 티타니움막을 급속가열로에서 고상반응에 의해 형성시킨 면저항 1.2 ohm/sq. 내외의 TiS$i_2$ 박막에 있어서 열안정성을 상부절연막의 유무 및 종류에 따라 조사하였다. 상부절연막은 상압 CVD로 증착한 USG(Undoped Silicate Glass, Si$i_2$) 막과 플라즈마 CVD법으로 증착한 PE-SiN(S$i_3$$N_4$)막을 사용했다. 열안정성 평가는 90$0^{\circ}C$에서 시간을 달리하여 TiS$i_2$막, PE-SiN막, USG막의 스트레스는 각각 1.3${\times}{10^{9}}$, 1.25 ${\times}{10^{10}}$, 2.26 ${\times}{10^{10}}$ dyne/c$m^2$의 인장응력을 나타내었다. 응집현상은 TiS$i_2$의 응집현상은 Nabarro-Herring 마이크로 크리프에 의한 원자의 확산관점에서 검토되었다. Abstract The effect of the film stress on the thermal stability of TiSi, films under the dielectric overcoat was investigated. TiS$i_2$ films with the sheet resistance of 1.2 ohm/sq. were produced by a solid-state reaction between sputtered Ti film and single-crystalline Si in an RTA (rapid thermal anneal) machine. Dielectric overcoats such as the USG (Undoped Silicate Glass, Si$O_2$) film and the PE-SiN(S$i_3$$N_4$) film were deposited by AP-CVD and PE-CVD, respectively, on the TiS$i_2$ film. The thermal stability of the TiSi, film was evaluated by changes in the sheet resistance, film stress and microstructure after furnace anneals at 90$0^{\circ}C$. Agglomeration of the TiSi2 film high temperatures results in the increase of sheet resistance and the decrease of tensile stress of TiSi, film. The stress level of the TiSi" PE-SiN and ~SG films at 90$0^{\circ}C$C was 1.3${\times}{10^{9}}$, 1.25 ${\times}{10^{10}}$, 2.26 ${\times}{10^{10}}$ dyne/c$m^2$ in tensile, respectively. Dielectric films deposited by CVD on TiSi, was effective on preventing agglomeration of TiSi,. The PE-SiN film mproved the thermal stability of TiSi, more effectively than the AP-CVD USG film. It is considered that agglomeration of the TiS$i_2$ film under the stress of dielectric overcoat at high temperature can be caused by a diffusional flow of atom called Nabarro-Herring microcreep.reep.
김영욱,김동주,임춘심 안동대학 안동사연구회 1986 安東史硏究 Vol.1 No.1
조사목적: 임하댐 수몰지구의 흩어진 유적 유물을 파악하여 연구하기 위하여 안동사 연구회에서는 이제까지 밝혀지지 않는 유적 유물을 실제로 우리 눈으로 찾아내기 위해서 매년 정기적으로 실시하여 전시회를 통하여 우리지방민에게 알려주고 연구하기 위해서 실시하고 있다. 안동에서 동쪽으로 40km떨어진 곳에 위치해 있는데 여기에는 아래와 같은 유적이 분포되어 있다. 고분 2개 고인돌 8개 무문토기 유적지 비문 4점 삼국토기 2점 한형석부 1점 등이 발견되었다.
看護學科 進學動機에 따른 意識 調査 : 順天看專을 對象으로 On Soonchun Nursing Junior College
金永旭 순천청암대학 1975 論文集-順川看護專門大學 Vol.1 No.-
Since Soonchun Nursing high school was raised to the status of Nursing Junior College in 1973, not a few students have applies for this school without understanding of particularuty and speciality of this school, consequently many problems and difficulties have been brough about to the education and administration of this school, An important element of the above is that students have applied this nursing school without duly consideration of their intellectural power and aptitude as nurse, and that their parents blindly insisted upon their becoming nurses, In order to guide the students well and to accomplish the purpose of education, the following subjects were investigated; ① Motives of applying for nursing school ② Occupations of parents of students in this school ③ Academic backgrounds of students' parents ④ Investigation to want an Occupation of students in this school.
김영욱,임유진 한국학중앙연구원 한국학중앙연구원 2012 Korea Journal Vol.52 No.3
The purpose of this paper is to analyze the apology strategies used by South Korean President Lee Myung-bak during the U.S. beef import negotiation upheaval in South Korea in 2008 and to investigate how these apologies were perceived by the South Korean public. The role of party identification as an audience-related variable in the perception of political apologies in the South Korean context was also examined. A content analysis of President Lee’s speeches and related daily newspaper coverage was conducted to identify the main apology strategies employed by the president and conveyed to the public through the media during the crisis. Experimental work was then carried out to examine the level of acceptance of these strategies, with further research evaluating the effect of party identification on the overall results. According to the results of the experimental work, President Lee’s apology strategies were generally ineffective, with the exception of the clear corrective action strategy. in addition the impact of party identification on the level of acceptance of the major apology strategies was confirmed.
過渡電壓에 對한 Thyristor 應用回路의 保護裝置에 關한 硏究
金永煜,金秀植 군산대학교 1979 群山水産專門大學 硏究報告 Vol.13 No.1
This research is aimed at being decreased the voltage automatically to regular voltage in case that transient voltage of over criteria value is added by connecting transient voltage protective circuit and over current protective circuit apart. and a step has been taken in order to keep the circuit applied Thyristor by cutting off power source in case that, by accidient of overload. The current is over 130(%) of criteria value, and the action of each part has been researched through careful experiment. The merit of this equipment : 1.This circuit is comparativly simple, elements of little capacity and ease of connection. 2.The speed of action is very rapid. 3.The values of transient voltage protection and overcurrent protection criteria can be changed at will.
Condenser형 二相 Converter 에 依한 誘導 電動機의 驅動特性에 관한 考察
金永煜 군산대학교 1985 群山水産專門大學 硏究報告 Vol.19 No.3
In this paper, the operating methods and torque characteristics of biphase induction motor using condenser type biphase converter were studied. The results were as follows: 1.The induction motor can be drived by the single phase power source if the C-type biphase converter is used. 2.The starting torque could make to vary successively. 3.The rotary direction of induction motor could be changed by varying of the firing angle α1. 4.The converter could be used as a device with properties of variable starting torque and inverted rotary starting.