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구강 악안면 연조직 결손 재건을 위한 진피 지방 이식의 이용 : 증례보고
김수관,박노승,이병준,황경곤,여환호,김영균 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3
Soft tissue defects in oral & maxillofacial region caused by tumor resection, trauma, congenital deformities have been treated in autogenous soft tissue flap, allogenic material, free dermal graft, fascia graft. Of these methods, autogenous dermis graft had initially been applied in hernia treatment at the beginning of nineteenth century and have been applied in soft tissue augmentation coverage of vital structure, dead space removal and reconstruction of fascia. A fat graft is used in reconstruction of orbit at the enucleation, restoration of facial contours, etc. In this case, patient with chin soft tissue defect in traffic accident was treated in autogenous dermis-fat graft from patient's abdominal and gluteal region. Chin defect was recons ructed favorably. There was no severe atrophy of grafted area 12 months postoperatively. We will report the result that is favorable esthetically with literature review.
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%.
( Hye Kyung No ),( Byung Su Kwon ),( Jung Mi Byun ),( Hyun Joo Lee ),( Dae Hoon Jeong ),( Tae Hwa Lee ),( Kyung-hwa Shin ),( Ki Hyung Kim ),( Dong Soo Suh ) 대한산부인과학회 2018 대한산부인과학회 학술대회 Vol.104 No.-
Objective: The aims of this study were to investigate the clinical relevance and spectrum of BRCA1/2 mutations in Korean ovarian cancer (KoOC) patients. Methods: Two hundred seventy-nine KoOC patients were enrolled from three university hospitals between 2012 and 2017. Their peripheral blood samples were obtained for BRCA1/2 mutation analysis by direct sequencing. Clinicopathological characteristics were retrospectively reviewed, and spectrum analyses of BRCA1/2 mutation were assessed by systematic literature review. Results: Frequency of BRCA1/2 mutations was 16.5% in KoOC patients. BRCA1/2 mutations were significantly associated with family history of breast/ovarian cancer (p < 0.001), serous histology (p=0.044) and advanced FIGO stage (III/IV, p=0.018) but not with early age-of-onset (age < 50, p=0.729). A literature review of BRCA1/2 mutations in KoOC patients found 111 (55 distinct) mutations. The proportion of Korean-specific mutations (24/55 distinct, 43.6%) was high. Comparing the spectrum of BRCA1/2 mutation between KoOC and Korean breast cancer (KoBC) patients, the ratio of BRCA1-to-BRCA2 mutations was different, with BRCA1 (78.4%) being predominant in KoOC and BRCA2 being predominant in KoBC (59.2%). The most common mutation also differed between the two (c.3627insA of BRCA1 in KoOC and c.7480C >T of BRCA2 in KoBC). Conclusion: The clinical relevance of BRCA1/2 mutations in KoOC patients was confirmed but that of early age-of-onset was not. Inconsistency in the ratio of BRCA1-to-BRCA2 mutations and the most common mutation between KoOC and KoBC may suggest possible presence of mutation sequence-associated penetrance tendency in hereditary KoBOC. These data may provide insights for optimal genetic counseling and prophylactic treatment for at-risk relatives of KoOC patients. Acknowledgements: This research was supported in part by a Biomedical Research Institute Grant (2017-01), Pusan National University Hospital and the Bio & Medical Techn
김경민(Kyung-Min Kim),남영호(Young-Ho Nam),박재흥(Jae-Heong Park),노철우(Chul-Woo No),이병길(Byung-Gil Lee),한운영(Un-Young Han) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1A
통신망에서 효율적인 망의 구성, 제어, 운용 등은 중요하다. 따라서 프로토콜의 설계상 오류를 미리 확인할 수 있는 프로토콜 검증이 필요하다. 프로토콜 검증은 프로토콜의 공식적인 규격으로 표현된 프로토콜의 설계에 대한 정확성(correctness), 완전성(completeness), 그리고 일관성(consistency) 등을 조사, 분석하는 것이다. 본 논문에서는 프로토콜 검증도구인 SDT를 이용하여 WLL 프로토콜을 검증한다. 이를 위해 WLL 설계 규격서를 분석하여 각 계층에 대한 SDL 명세를 작성하고, 구문적(syntactic), 의미적(semantic), 검사와 simulation 및 validation을 수행한다. 본 논문의 중요 목표는 통신업계의 중요 관심사로 등장한 WLL 무선 프로토콜의 신뢰성 및 정확성을 시험하기 위한 프로토콜 검증이다.
Growth Inhibitory Effect of Fermented Kimchi on Food-borne Pathogens
Jong-Kyung Lee,Da-Wa Jung,Yun-Ji Kim,Seong-Kwan Cha,Myung-Ki Lee,Byung-Hak Ahn,No-Seong Kwak,Se-Wook Oh 한국식품과학회 2009 Food Science and Biotechnology Vol.18 No.1
The effect of kimchi, traditional Korean fermented vegetables, on inactivating food-borne pathogens and the kimchi factors affecting the antimicrobial activity were investigated. More cells of Listeria monocytogenes, Staphylococcus aureus, Escherichia coli O157:H7, and Salmonella typhimurium were inactivated in the kimchi that had low pH and high titratable acidity. Of the raw ingredients in kimchi, raw garlic showed the strongest antimicrobial activity against the pathogens. When kimchi was fermented at 0, 4, 10, or 20℃ to pH 4.4, higher kimchi fermentation temperature resulted in higher titratable acidity. The greatest inactivation of S. typhimurium occurred in kimchi fermented at 20℃, while L. monocytogenes were inactivated in kimchi fermented at 0℃ in situ. This study showed that appropriately fermented kimchi can inactivate various food-borne pathogens and that the fermentation temperature of the kimchi is an important factor in determining the ability of the kimchi to inactivate specific pathogens. Lactic acid bacteria (LAB) multiplication and organic acids produced according to LAB metabolism play a role in inactivating food-borne pathogens in kimchi.
집중질량 변화에 따른 수중 고속 운동체의 구조 안정성 해석
오경원(Kyung-Won Oh),서주노(Joo-No Sur),조병구(Byung-Gu Cho),류시웅(Si-Ung Ryu),공창덕(Gong-Duk Kong) 한국해양공학회 2009 韓國海洋工學會誌 Vol.23 No.1
In this paper, the effect of the position and size of a lumped mass on the structural stability of a high speed underwater vehicle is presented. For simplicity, a real vehicle was modeled as a follower force subjected beam that was resting on an elastic foundation, and the lumped mass effect was simplified as an elastic intermediate support. The stability of the simplified model was numerically analyzed based on the Finite element method (FEM). This numerical simulation revealed that flutter type instability or divergence type instability occurs, depending on the position and stiffness of the elastic intermediate support, which implies that the instability of the real model is affected by the position and size of the lumped mass.