http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
韓國産鐵鑛石에 關한 基礎硏究 : 第1報 水素還元特性 Part 1. Reducibility determined by Hydrogen
尹東錫 서울대학교 1961 서울대학교 論文集 Vol.10 No.-
Five Korean iron ores were reduced to determine the reducibility characteristics in terms of reduction degree of each ore employing hydrogen flow method. Roasted ores, as well as unroasted, were tested at various temperatures ranging from 500℃ to 900℃ with varied flow rate of hydrogen. Effect of sampling amount and hydrogen flow on the reduction degree of same ores unroasted was checked at a definite temperature. Results obtained in this experiment are discussed with reference to the papers published previously, and microstructures of unroasted ores are also examined to validate the constitution of iron ores.
Si-Schottky障壁型의 大陽電池 製作에 관한 硏究
李相潤,羅炳旭,朴德圭,李鍾德,金奎用,玄東杰,禹洪,盧景錫 慶北大學校 物理化學硏究所 1981 硏究論文集 Vol.1-2 No.-
The characteristics of these Si-schottky barrier type and Heterojunction type solar cells are as follows; 1. SnO_2/n-Si Heterojunction Solar Cells Fabricated by Spray Pyrolysis Method SnO_2 film were deposited on the (100) or (111) surface of Si single crystal by the spray pyrolysis method. The best SnO_2/n-Si solar cell has a good performance, with an open-circult voltage: Voc.=0.45V, short circuit current: Isc.=35.5㎃, fill factor: FF.=0.64, and conversion efficiency: η=10.2% under 98㎽/㎠ irradiation of AMl. The spray pyrolysis described in this paper is simple and suitable for mass production. One possibility for cost reduction lies in this method of junction fabrication, and the idea of simply deposited SnO_2/n-Si junction is, at first sight, very attractive. Hence the SnO_2/n-Si Solar Cell and the effectiveness of this method may be of great value in some future production of low-cost solar cells. 2. In_2O_3: Sn Heterojunction Solar Cells Fabricated by Spray Pyrolitic Method Highly conductive and transparent thin films of In_2O_3: Sn (ITO) are fabricated by spray pyrolytic method. The parameters of these thin films are as follows: resistivity ρ = 1.5×10 exp (-3) Ω·㎝, carrier concentration n = 7.5×10 exp (19) cm^-3, mobility μ = 55.5 ㎠/V·sec and transmission 85-90% over visible and long wave-length region. These thin films have simple cubic system with lattice constant 10.2Å. In_2O_3: Sn/n-Si heterojunction solar cells are fabricated, depositing In_2O_3: Sn (ITO) thin films on n-Si substrates with orientation(100) and resistively 2-3Ω, ㎝ by spray pyrolitic method. Under AMl sunlight simulator, the parameters of the excellent cell obtained has open-circuit voltage Voc=0.52V, short-circuit current I_sc=39.0㎃, fill factor: F.F=0.60 and conversion efficiencyη=12.1%. 3. Al/p-Si MOS Solar Cells Fabricated by Vacuum Evaporation Method Al/p-Si MOS solar cells, consisting of Al on P-tupe silicon with a thin interfacial layer of SiO_2 have been found to have good light conversion efficiency for solar radiation. The effects of the oxide layer thickness between metal and substrate were investigated. Under AMl simulated sunlight illumination the best cell has open circuit voltage Voc=0.50V, short-circuit current I_sc=26.3㎃/㎠, fill-factor FF=0.70 and conversion efficiency η=9.2%. 4. Cr-Cu/P-Si MOS Solar Cells Fabricated by Vacuum Evaporation Method Cr-Cu/p-Si MOS Solar cells, consisting of Cr-Cu on p-type silicon with a thin interfacial layer of SiO_2 have been found to have good light conversion efficiency for solar radiation. The effects of the oxide layer thickness between metal and substrate were investigated. Under AMl simulated sunlight illumination the best cell has open circuit voltage Voc=0.49V, short-circuit current I_sc=26.4㎃, fill-factor: FF=0.72 and conversion efficiency η=9.3%.
HPV E6 발암단백과 결합하는 CDC7 단백의 기능분석
동서연 ( Seo Yun Tong ),김정진 ( Jung Jin Kim ),조양숙 ( Yang Sook Cho ),박종섭 ( Jong Sup Park ) 대한산부인과학회 2007 Obstetrics & Gynecology Science Vol.50 No.3
목적: 인유두종 바이러스의 발암기전과 관련된 물질을 찾기 위해 Yeast two hybrid assay를 통해 HPV E6와 결합하는 것으로 선별된 cell division cycle 7-related protein kinases (CDC7)의 기능을 알아보고자 한다. 연구방법: E6와 결합하는 단백을 선별하기 위해 human HeLa cDNA library를 prey로 하고 HPV E6를 bait로 하여 yeast two hybrid를 시행한 후, 여기서 E6와 결합한다고 선별된 CDC7과의 반응을 확인하기 위해 immunoprecipitation assay를 시행하였다. CDC7과 E6가 세포에 미치는 영향을 보기 위해 세포주기분석을 시행하였다. 결과: yeast two hybrid와 immunoprecipitation assay를 이용하여 E6와 결합하는 신규단백으로서 CDC7을 확인할 수 있었고, E6의 발현을 감소시켰을 때와 마찬가지로 CDC7에 siRNA를 처리하였을 때 역시 세포사멸이 증가하는 것을 관찰할 수 있었다. 그러나, CDC7과 E6를 동시에 억제하였을 때 세포사멸에 대한 상승작용을 관찰할 수는 없었고, CDC7과 E6의 발현을 증가시켰을 때도 세포주기에 특이한 변화는 없었다. 결론: 이번 실험을 통해 HPV E6와 결합하는 신규 단백을 발굴하였고, CDC7이 세포사멸에 영향을 주는 것은 확인할 수 있었으나 향후 부가적인 기능을 탐구하기 위한 연구가 더 필요할 것으로 사료된다. Objective: Human papillomaviruses are associated with the majority of cervical cancers. There is a wide effort focused on searching for the target of the involvement of p53-independent HPV-16E6 interacting proteins. We identified Cdc7 (cell division cycle 7-related protein kinases) as a binding partner of E6 and investigated its biological function in cervical cancer cells. Methods: The baits, E6, fused to the LexA-BD subunit using pBTM116 vector were used to screen an oligoneucleotide primed human HeLa cDNA library cloned in pGAD10 vector. Yeast two-hybrid screens were performed. Immunoprecipitation assay was performed to determine whether E6-Cdc7 interaction occurred. Cells treated with siRNA were analysed by flow cytometry. Results: We have delinated the interactions of E6 with five proteins, namely the IRF-3 (interferon regulatory factor-3), PRKCL 1 (protein kinase C-like 1), PIST (PDZ/coiled-coil domain binding gene), BARD1 (BRCA1 assocated ring domain 1), and Cdc7. The in vitro result of the interaction between E6 and Cdc7 was confirmed by immunoprecipitation experiments. Down-regulation of Cdc7 by small interfering RNA in HeLa cell lines causes an abortive S phase, leading to cell death. Conclusion: We have identified the new protein of interaction with HPV E6, Cdc7 kinase. It has been implicated in S phase signaling of cell cycle and the inhibition of Cdc7 induced cell death. But, further investigation is needed to know the biologic function of Cdc7 kinase in cervical carcinogenesis.
동서연 ( Seo Yun Tong ),이용석 ( Yong Sek Lee ),박종섭 ( Jong Sup Park ),이준모 ( Jun Mo Lee ),남궁성은 ( Seung Eun Namkoong ) 대한산부인과학회 2006 Obstetrics & Gynecology Science Vol.49 No.9
목적: 부인과 영역에서 동시에 발생하는 원발암에 대한 임상적 분석을 통해 발생 빈도, 임상적 특징 및 예후를 알아보고자 한다. 연구 방법: 2000년 2월부터 2005년 1월까지 부인암을 진단 받은 환자 중 다발성 일차암으로 진단된 환자를 대상으로 임상병리적 특징, 치료 및 치료 후 결과에 대해 후향적으로 고찰하였다. 결과: 같은 기간에 부인암을 진단 받은 환자는 모두 3164명으로 그 중 20명이 동시성 일차암으로 진단되어 0.63%의 빈도를 나타내었다. 이중 생식기에 다발성 종양은 13명이었고 가장 많은 동시성 일차암은 자궁내막암과 난소암으로 20명 중 8명이었다 (40%). 자궁내막암과 난소암이 동시에 발생한 경우는 평균연령이 45.2세로 각각 종양이 발생한 경우보다 비교적 빠른 나이에 발생하였고, 조직학적으로는 자궁내막선암과 난소의 자궁내막양 선암이 동반된 경우가 5예로 빈도가 높았다. 수술 후 추적관찰기간 동안 2명의 환자가 사망하였고, 평균 생존 기간은 57개월 (SE 10.0, 95% Confidence interval 37-77)이었다. 결론: 부인암과 동시에 발생하는 원발암은 비교적 드문 질환이다. 그 중 자궁내막암과 난소암의 빈도가 가장 높고 일반적으로 단일암보다 젊은 나이에 발생하며, 수술과 보조적 치료로 비교적 좋은 예후를 기대할 수 있다. Objective: A histopathologic review of synchronous primary neoplasms of the female reproductive tract was presented and the possible correlation among discrete tumor subsets, natural history, and survival was evaluated. Methods: Between 2000 and 2005, 20 patients with synchronous primary cancers of the gynecologic malignancy were identified. Clinical and pathologic informations were obtained from medical records. Kaplan-Meier survival analysis was performed. Results: The patients with Synchronous primary malignancies constituted 0.63% of all genital malignancies. The most frequently observed synchronous neoplasms were those of the ovary with the endometrium (40%). The mean age of patient with synchronous ovarian and endometrial cancer was 45.2 years. 8 patients underwent the hysterectomy with bilateral salpingo-oophorectomy and adjuvant therapy. The mean survival is 57 months (SE 10.0, 95% Confidence interval 37-77). Conclusion: Synchronous ovarian and endometrial cancers were detected in relatively early age and the prognosis was favorable.