http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
최광배,민대홍,윤진호,김승홍 大韓成形外科學會 1982 Archives of Plastic Surgery Vol.9 No.2
The auricle, diverging from the side of the head, consists of a delicate shell of elastric cartilage between the anterior and posterior of the thin skins. Thus, a radiacl chage in the outlook for the results of ear reconstruction has occured in recent years due to the delicate anatomical specificity. Inspite of the challenge of the many plastic surgeons, successful resconstruction of acquired defects may be extrimely difficult or impossible- especially, in patients who have suffered total traumatic loss of the auricle in which the local soft tissues are destroyed or deeply scarred. We experienced the case of total auricular loss with severe periauricular abrasion and dirty tattooing, and can obtained successful total ear reconstuction using buried cartilage and the distant flap.
Pd/C 촉매에 의한 2-(2-hydroxy-5-methyl-phenyl)-2H-benzotriazole 합성 반응의 특성
최주홍,이정원,이대광,이동근 慶尙大學校生産技術硏究所 1994 生産技術硏究所論文集 Vol.10 No.-
The reduction process using Pd catalyst is very attractive in the view points of the simple reaction step and the relatively less discharge of pollutants. The reduction characteristics of o-nitrohydroxyazobenzene(O-NHAB) with Pd/c catalyst was investigated in an autoclave and a reactor operated at atmospheric pressure. The reduction performance of O-NHBA in the auto clave showed high pressure gave good yield for tinuvin P. The maximum yield of tinuvin P based on o-nitroaniline was 63.3%. Some contents of water in the solution improved the reaction rate ad reduced the formation of impurities. Reaction temperature was able to be increased up to 75℃ with the relatively less impurities. The optimum content of NBA was about 10%.
불소가 첨가된 실리콘 산화막의 다층금속절연 특성에 관한 연구
權大赫,南基泓,吳相光 慶一大學校 1997 論文集 Vol.14 No.2
The characteristics of fluorinated silicon oxide (SiOF) films prepared by plasma enhanced chemical vapor deposition(PECVD) were discussed. The deposition of these films was carried out in the temperature range of 80 - 220℃ in a conventional parallel plate plasma reactor with 〈 ±3% uniformity by flowing 2 sccm of disilane (Si₂H6), 100 sccm of nitrous oxide (N₂O), and 20 sccm of tetrafluoromethane (CF₄). AS the deposition temperature increased from 80 to 220℃, the deposition rate of the films increased from 16.7 to 18.4 nm/min; meanwhile, the etch rate decreased from 2.69 to 1.48 nm/sec. The refractive index was 1.46 regardless of the deposition temperature. The Fourier transform infrared (FTIR) spectra of the films showed decreasing Si-O stretching wave number with increasing full width at half maximum (FWHM) as deposition temperature increased. The high frequency capacitance-voltage (C-V) measurements of the metal-oxide-semiconductor (MOS) capacitors fabricated using the films showed increasing effective oxide charge density and decreasing dielectric constant with increasing deposition temperature. Deposition temperature of 180℃ resulted in films with the smallest dielectric constant of 3.75. These films showed an average breakdown strength of 9.14 MV/cm with 77.5% of the MOS capacitors having breakdown field strength ≥9.5 MV/cm
이순홍,김대인,배중돈,안광호 안양대학교 산업기술연구소 2000 自然科學硏究 Vol.7 No.-
수용성 고분자 chitosan은 폐수로부터 현탁물질을 처리하기 위한 효과적인 응집제로 유용하게 사용될 수 있다. chitosan은 충분한 양을 확보할 수 있고 무독성이며 2차 오염이 없어 응집제로서 매우 유용하다. 본 연구의 목적은 고기능성 신소재인 분자량 분획 수용성 고분자 chitosan을 분자량별로 각각 100㎎/ℓ로 제조하여 0.1wt%-kaolin 현탁액, 0.1wt%-egg albumin 제조폐수 및 두부공장폐수에 응집제로 사용하여 최적 적용 조건을 검토하였다. 모든 폐수의 응집을 위한 최적 pH는 5, 제조폐수의 응집처리 후 상등액의 투과율은 모두 95% 이상, 두부공장폐수는 약 80%의 투과율을 나타내었다. chitosan blendmer의 경우 chitosan과 CMC(100㎎/ℓ)의 혼합비가 2 : 1 일 때 응집효과가 가장 뛰어났다. Chitosan modified natural polymers can be used as an effective coagulant for the removal of suspended and dissolved solids from wastewater, and doesn't occurred secondary pollution. The present investigation was to evaluate optimum condition for treatment of suspended and dissolved solids from wastewater using plain chitosan and modified chitosan blendmer. Optimum condition for coagulating kaolin suspension, egg albumin suspension and tofu wastewater was pH 5. The highest transmittance of 0.1wt%-kaolin suspension, 0.1wt%-egg albumin suspension and tofu wastewater showed 98.4%(at Mw 800,000Cs), 96.38%(at Mw 200,000Cs) and 79.62%(at Mw 400,000Cs), respectively. In case of chitosan blendmer (CMC : Cs = 1 : 2) the highest transmittance of 0.1wt%-kaolin suspension, 0.1wt%-egg albumin suspension and tofu wastewater showed 95.94%(at Mw 800,000Cs), 95.06%(at Mw 200,000Cs) and 78.38%(at Mw 400,000Cs), respectively.
高正大,李光萬,崔致圭,洪性樂 제주대학교 1990 논문집 Vol.30 No.-
A rapid thermal annealing (RTA) apparatus capable of controlling the radiation power density were designed. The titanium silicide grown from thin film Ti (400Å)/Si(111) and TiSi₂.?(700Å)/Si(111) system was processed in an argon ambient by RTA apparatus at the temperature range of 450℃ to 950℃ for 5 to 60 second. The processed specimens had been charaterized by XRD, SEM and AES. From the XRD spectra the phases of the titanium silicides had been changed from Ti?Si₄to TiSi and then TiSi₂by increasing the annealing temperature. XRD and AES results showed that the phase of Ti-silicides was C54 TiSi₂ at annealing temperature of 850℃ for 30 second. The phase of titanium silicides were confirmed by the line shape Si L₂,₃VV and Ti L₃M₂,₃M₂,₃ Auger spectra.
C.V.D. 방법에 의한 Cd_0.78Zn_0.22 S박막 성장과 광전기적 특성연구
유상하,이상렬,홍광준,서상석,김혜숙,전승룡,윤은희,문종대 조선대학교 기초과학연구소 1993 自然科學硏究 Vol.16 No.1
We had grown Cd_0.78Zn_0.22S polycrystal thin films on slide substrate using chemical vapour deposition(CVD) method. We measured X-ray diffraction patterns in order to study Cd_0.78Zn_0.22S polycrystal structure. We studied its band gap using transmission curves and photocurrent and also analyzed photoluminescence using configurational coordinate model. We measured Hall effect·on this sample by Van der Pauw method and studied on carrier density and mobility depending on temperature.
n-CdS_(0.46)Se_(0.54)/p-Cu_92-x)S_(0.46)Se_(0.54) 이종접합 태양전지의 제작과 그 특성에 관한 연구
유상하,최승평,이상열,홍광준,서상석,김혜숙,전승룡,윤은희,문종대,신영진,정태수,신현길,김택성,유기수 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-
승화방법에 의해 CdS_0.46Se_0.54 단결정을 성장하여 결정구조를 조사하고, Van der Pauw 방법으로 Hall effect를 측정하여 carrier density의 온도 의존성과 mobility의 온도 의존성을 조사하였다. 성장된 CdS_0.46Se_0.54 단결정을 치환반응하여 n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 이종접합 태양전지를 제작하였다. Spectral response, 전류-전압특성 및 전력변환 효율을 조사하여 그 결과로부터 개방전압은 0.48V, 단락 전류 밀도는 21mA/㎠, fill factor와 전력변환효율은 각각 0.75와 9.5%를 얻었다. CdS_0.46Se_0.54 single crystal was grown by a sublimation method. The crystal structure and the temperature dependence of carrier density and mobility of CdS_0.46Se_0.54 single crystal were studied. Heterojunction solar cells on n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 were fabricated by the substitution reaction. The spectral response, the J-U characteristics and the conversion efficiency of the n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 heterojunction solar cells were studied. The open-cricuit voltage, short-circuit density, fill factor and conversion efficiency of n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 heterojunction solar cells under 80mW/㎠ illumination were found to be 0.48V, 21mA/㎠, 0.75 and 9.5%, respectively.