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      • 레이저 CVD 법에 의한 고품질 Ta2O5 박막의 퇴적과 그 특성

        김창덕,이승환,성영권,종관,이동희 고려대학교 공학기술연구소 1996 공학논문집 Vol.33 No.1

        Ta₂O_5 thin films with high dielectric constant were deposited on the Si substrates from the sublimated TaCl_5/N₂O mixture using an ArF excimer laser (wavelength: 193㎚). The deposition rate increases with increasing substrate temperature and decreasing chamber pressure. Dielectric constant(ε_r) values of 18-23 were achieved for the 40-80 ㎚ thick Ta₂O_5 films and showed thickness dependence. The interface state density calculated from DLTS signal decreases with increasing substrate temperature and nearly independent with chamber pressure. The leakage current density decreases with increasing substrate temperature up to 10^(-8)A/㎠ at 1㎹/㎝ electric field. The films deposited by laser CVD technique showed a remarkable reduction in the leakage current compared to the other film growth techniques like PECVD, and Reactive Sputtering. It is expected to reduce the post-annealing time greatly for the Ta₂O_5 dielectric 61ms using the laser CVD technique.

      • KCI등재
      • KCI등재

        아나키스트 시인 우에무라 타이(植村諦)와 朝鮮―조선에서의 체험을 중심으로―

        김창덕 한국일본학회 2009 日本學報 Vol.79 No.-

        植村諦は生涯の最後の瞬間までアナキストに一貫した激情的な詩人で、特に植民地朝鮮でアナキズム思想によって民衆と供に日帝に対抗した詩人である。今は植村諦を憶えている人々はほとんどいなくなり、無名詩人に等しいと言えるだろう。しかし彼は1929年10月に朝鮮からアナキズム系列の同人誌『矛盾』に短歌「漂泊途上の歌」の発表以来、解放文化連盟の結成に参加して『解放文化』と第2次『弾道』をまた1933年8月には擴大再編した解放文化連盟の機関誌『文学通信』の発行などを通して日本の中心的なアナキスト詩人になった。 1935年11月には日本無政府共産黨の委員長として活動中、アナキズム運動に対する大弾圧によって日本無政府共産党及び解放文化連盟は壊滅、植村諦も7年におよぶ獄中生活を体験した。戦後にも自分の思想を曲げずに新日本文学会と日本未来派で詩作活動を展開中、1959年脳出血によって死亡するまで日本を代表するアナキスト詩人の一人としてアナキズム運動の中心的な役目を果たした人物であった。 特に植村諦に注目することは彼が朝鮮での民衆との体験を通じて民衆解放を志向するアナキストとして自覚し、詩を通じて日帝に抵抗したという点である。朝鮮で雑誌『朝鮮及満洲』の編集者に勤めながら野長瀬正夫、岡本潤などのアナキスト詩人たちとの交流を通じて植民地朝鮮の惨めな現実は強制的で破壊的な日帝の苛酷な収奪政策にその原因があることを分かるようになった。1930年5月朝鮮の独立運動家たちとの接触事実が警察に知られて逮捕の代りに朝鮮からの追放によって帰郷するようになった時、彼は徹底的なアナキズム思想による抵抗詩人に変わった。植村諦は植民地朝鮮民衆の苦痛を一緒に体験し、朝鮮民族の解放を固く信じ、詩を通して日帝に抵抗した代表的なアナキスト詩人であったのでる。

      • SCOPUSKCI등재

        위내시경검사로 발생된 타액선 종창 5예

        김창덕,최재현,현진해,박종재 대한소화기내시경학회 1994 Clinical Endoscopy Vol.14 No.4

        As upper-gastrointestinal endoscopy has been more widely used for the diagnosis and treatment of upper gastrointestinal diseases, some complications such as bleeding, perforation, arrhythmia, aspiration pneumonia, infection, and drug reaction of premedication were reported. Also a few case of salivary gland swelling complicated by endoscopy was described, but the precise mechanism of this benign complication is not well-known. The hypothesized mechanisms for salivary gland swelling are 1) air distension of blind branchial cleft remmants, 2) compression of its duct between the mylohyoid and hyoglossus muscles from pressure above, during a time of increased salivary flow from oral stimulation, 3) forward and downward dislocation of gland by the force that occurs when endoscope pushes the tongue, and 4) reaction to topical anesthesia less likely. Here we report 5 cases of salivary galnd swelling with a review of the literature, explaining possible mechanism of each case.

      • 건설 기술인 육성 방안에 관한 연구 Ⅰ : 건설 교육제도에 대하여

        김창덕,예상,서상욱,이용일 광운대학교 신기술연구소 1997 신기술연구소논문집 Vol.26 No.-

        본 논문에서는 건설시장개방으로 인한 치열한 경쟁, 그린 라운드를 통한 강화된 환경제약조건, 복합적이며 다기화된 건설업역 등 급변하는 상황에 처해 있는 우리 건설업의 국제경쟁력을 확보하기 위하여 필연적으로 개선되어야 할 건설기술 교육제도에 대하여 살펴 보았다. 본 논문에서는 건설기술교육 중 대학에서의 건설교육 현황을 파악하고 미국 독일 영국 프랑스 일본 등 건설선진국의 건설교육현황을 조사하고 이를 토대로 우리 건설 교육제도를 분석하고 발전방안을 제시하였다. The Korean construction industries face challenging situations such as extreme competition in construction markets, high demand in construction performance, stringent constraints in environmental requirement, diverse types in construction projects, etc. In order for Korean construction industires not only to survive in international construction markets but to defend the domestic market, the cultivative development of quality construction engineers is the key. The key role to develop quality construction engineers has been performed by educational institutions primarily universities and technical colleges. This study focuses on universities as a prime educational institution to develop competent construction engineers working for the Korean construction industries to compete with the worldwide top ranked international construction companies. This study begins with the survey and the analysis of curriculums of Korean universities offering the construction engineering programs followed by the analysis of the five foreign universities’ curriculums including U. S. A., Germany, France, Japan, and U. K. After the comparative analysis between Korean’s and foreign ones, this study concludes with the suggestions to improve the univerities’ educational and the relevant systems to foster quality construction engineers.

      • SCOPUSKCI등재
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