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수성 알루미나/탄화규소 슬러리의 동결주조와 층상복합체의 제조: (I) 슬러리의 분산과 유동성
양태영,조용기,김영우,윤석영,박홍채,Yang, Tae-Young,Cho, Yong-Ki,Kim, Young-Woo,Yoon, Seog-Young,Park, Hong-Chae 한국세라믹학회 2008 한국세라믹학회지 Vol.45 No.2
Zeta potential, sedimentation bulk density and rheology in the dispersion system have been studied in terms of solid loading (40-55 vol%), and types of additives. Ammonium polymethacrylate, glycerol, ethoxylated acetylenic diol, and polyvinyl alcohol have been used as the dispersant, cryo-protectant, surfactant, and binder, respectively. Sedimentation density greatly increased upon adding dispersant; the effect was more pronounced with ionic alumina suspension compared with covalent silicon carbide. With further addition of cryo-protectant and surfactant to dispersant, the sedimentation density increased somewhat. The suspension viscosity generally behaviored in an opposite manner to the sedimentation density, i.e., high sedimentation gave low high-shear viscosity, indicative of low order structure formation in the suspended particles. Shear rate rheology in shear rate of $2-300\;sec^{-1}$ showed a shear thinning and its onset began at similar shear rate (${\sim}100\;sce^{-1}$), regardless of solid loading.
음성 인식 시스템의 화자 적응 성능 향상을 위한 코드북 설계
양태영,신원호,김원구,윤대희,Yang, Tae-Young,Shin, Won-Ho,Kim, Weon-Goo,Youn, Dae-Hee 한국음향학회 1996 韓國音響學會誌 Vol.15 No.2
본 논문에서는 반연속 HMM(semi-continuous Hidden Markov Model) 음성 인식 시스템에 적용되는 베이시안 화자 적응(Bayesian speaker adaptation)의 성능 향상을 위해 코드북 변환 알고리즘을 제안하였다. 기존 베이시안 화자 적응 알고리즘의 경우 새로운 화자의 특징 분포와 코드북 사전 밀도의 차이가 큰 경우 적응 데이터와 코드북간의 잘못된 대응 관계를 얻을 수 있으며, 기준(reference) 코드북에 필요 이상으로 많은 코드워드가 존재하는 경우 적응된 코드북에도 불필요한 코드워드들이 남아 인식 과정에 혼란을 줄 수 있다. 이 문제점을 해결하기 위하여 제안된 코드북 변환 알고리즘에서는 주파수 영역의 포만트 정보를 이용하였다. 화자 적응을 수행하기 앞서 코드북의 켑스트럼으로부터 포만트를 추출해 내고, 이들의 분포를 적응 화자의 포만트 분포와 일치되도록 변환시켜 주었다. 이 변환된 포만트들로부터 다시 켑스트럼을 구하여 변환된 코드북을 얻고, 이를 화자 적응의 초기 코드북으로 사용하였다. 제안된 알고리즘을 이용하였을 경우 코드북과 적응 화자의 음성 간의 정확한 대응 관계를 찾을 수 있었고, 불필요한 코드워드들이 인식 과정에서 사용되지 않도록 변환되어 인식률이 향상되는 것을 실험을 통해 확인하였다. The purpose of this paper is to propose a method improving the performance of a semi-continuous hidden Markov model(SCHMM) speaker adaptation system which uses Bayesian Parameter reestimation approach. The performance of Bayesian speaker adaptation could be degraded in case that the features of a new speaker are severely different from those of a reference codebook. The excessive codewords of the reference codebook still remain after adaptation proess. which cause confusion in recognition process. To solve such problems, the proposed method uses formant information which is extracted from the cepstral coefficients of the reference codebook and adaptation data. The reference codebook is adapted to represent the formant distribution of a new speaker and it is used for Bayesian speaker adaptation as an initial codebook. The proposed method provides accurate correspondence between reference codebook and adaptation data. It was observed that the excessive codewords were not selected during recognition process. The experimental results showed that the proposed method improved the recognition performance.
무알칼리 다성분 La<sub>2</sub>O<sub>3</sub>-Al<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub> 유리의 조성과 몇 가지 물성의 관계
강은태,양태영,황종희,Kang, Eun-Tae,Yang, Tae-Young,Hwang, Jong-Hee 한국세라믹학회 2011 한국세라믹학회지 Vol.48 No.2
Non-Alkali multicomponent $La_2O_3-Al_2O_3-SiO_2$ glasses has been designed and analyzed on the basis of a mixture design experiment with constraints. Fitted models for thermal expansion coefficient, glass transition temperature, Young's modulus, Shear modulus and density are as follows: ${\alpha}(/^{\circ}C)=8.41{\times}10^{-8}x_1+5.72{\times}10^{-7}x_2+2.13{\times}10^{-7}x_3+1.09{\times}10^{-7}x_4+1.10{\times}10^{-7}x_5+1.15{\times}10^{-7}x_6+2.72{\times}10^{-8}x_7+2.41{\times}10^{-7}x_8-1.08{\times}10^{-8}x_1x_2+4.28{\times}10^{-8}x_3x_7-2.02{\times}10^{-8}x_3x_8-1.60{\times}10^{-8}x_4x_5-2.71{\times}10^{-9}x_4x_8-2.19{\times}10^{-8}x_5x_6-3.89{\times}10^{-8}x_5x_7$ $T_g(^{\circ}C)=7.36x_1+15.35x_2+20.14x_3+8.97x_4+13.85x_5+4.22x_6+28.21x_7-1.44x_8-0.84x_2x_3-0.45x_2x_5-1.64x_2x_7+0.93x_3x_8-1.04x_5x_8-0.48x_6x_8$ $E(GPa)=2.04x_1+14.26x_2-1.22x_3-0.80x_4-2.26x_5-1.67x_6-1.27x_7+3.63x_8-0.24x_1x_2-0.07x_2x_8+0.14x_3x_6-0.68x_3x_8+0.29x_4x_5+1.28x_5x_8$ $G(GPa)=0.35x_1+1.78x_2+1.35x_3+1.87x_4+9.72x_5+29.16x_6-0.99x_7+3.60x_8-0.48x_1x_6-0.50x_2x_5+0.08x_3x_7-0.66x_3x_8+0.94x_5x_8$ ${\rho}(g/cm^3)=0.09x_1+0.51x_2-4.94{\times}10^{-3}x_3-0.03x_4+0.45x_5-0.07x_6-0.10x_7+0.07x_8-9.60{\times}10^{-3}x_1x_2-8.20{\times}10^{-3}x_1x_5+2.17{\times}10^{-3}x_3x_7-0.03x_3x_8+0.05x_5x_8$ The optimal glass composition similar to the thermal expansion coefficient of Si based on these fitted models is $65.53SiO_2{\cdot}25.00Al_2O_3{\cdot}5.00La_2O_3{\cdot}2.07ZrO_2{\cdot}0.70MgO{\cdot}1.70SrO$.
양태영(Tae Young Yang) 한국어의미학회 2000 한국어 의미학 Vol.6 No.-
The purpose of this thesis is to explain the function of the combined effects of pictures and linguistic forms of Cartoons and Comic strips in the daily newspaper. The following aspects are found in Cartoons and Comic strip Pictures: main characters, particular sign, background pictures, and balloons. The Linguistic forms are analyzed into the following categories: lexicon, syntax, and pragmatics. Inferences can be made by using pictures and linguistic forms, which both activate the reader`s word knowledge. Therefore Cartoons and Comics Strip are understood with the combination of picture and linguistic forms.
수성 알루미나/탄화규소 슬러리의 동결주조와 층상복합체의 제조
Tae Young Yang(양태영),Yong Ki Cho(조용기),Young Woo Kim(김영우),Seog Young Yoon(윤석영),Hong Chae Park(박홍채) 한국세라믹학회 2008 한국세라믹학회지 Vol.45 No.2
Symmetric three layer composites have been prepared by freeze casting and then pressureless sintered at 1700-1800℃ in N₂ gas atmosphere. The relative sintered density of multilayer composites having microstructural characteristics of later intermediate-stage densification increased with sintering temperature and reached about 95% theoretical value at 1800℃. Although the indentation strength of the multilayer composites was generally reduced with increasing Vickers indentation load up to 294N, the damage resistance of multilayer composites was superior compared to monolithic layer 95AL/5SN material. The three-point bend strength of the layered materials remained at the values 266-298 MPa after indentation with a load of 49N, while that of the monolithic 95AL/5SN material was 219MPa. The fracture toughness of the multilayer material was 5.4-6.6MPaㆍm1/2.
간담도내 Calcium - bilirubinate 결석을 갖는 한자에서 간흡축증의 유병율에 관한 연구
양태영(Tae Young Yang),서정철(Jeong Cheol Seo),김미자(Mi Ja Kim),정규성(Kyu Sung Chung),주기산(Gi San Ju),박찬국(Chan Gook Park),김만우(Man Woo Kim),김석일(Suk Il Kim) 대한내과학회 1995 대한내과학회지 Vol.49 No.5
N/A graphic characteristics by modified Tsuchiya method. The stool examination was carried out using the cellulous thick smear and the anti-C, sinensis IgG was measured by enzyme-linked immunosorbent assay. Results: The ultrasonographic analysis of stones showed that type 1mainly composed of cholesterol stone was 45cases(62.5%) and type 3 mainly composed of calcium-bilirubinate stone was 23cases (31.9%). The prevalence of clonorchiasis in 72cases of hepatobiliary stone patients, in 23cases of calciumbilirubinate stones, and in 49cases of non calciumbilirubinate stones were 18cases(25%), 10cases (43.5%), and 8cases(16.3%) respectively. Conclusion: The relationship between Clonorchiasis and calcium-bilirubinate stone was statistically significant(p<0.01).
간동맥주입 화학요법과 체외 방사선 치료의 병행요법으로 치료한 국소 진행성 간세포암종 1예
양태영 ( Tae Young Yang ),신석표 ( Suk Pyo Shin ),이주호 ( Joo Ho Lee ),이윤빈 ( Yun Bin Lee ),박하나 ( Ha Na Park ),황성규 ( Seong Gyu Hwang ),임규성 ( Kyu Sung Rim ) 대한간암학회 2015 대한간암학회지 Vol.15 No.1
Patients with advanced hepatocellular carcinoma (HCC) with portal vein thrombosis (PVT) have an extremely poor prognosis. Although the Barcelona Clinic Liver Cancer guideline recommends sorafenib in advanced HCC with PVT, which has provided survival benefits of 2 or 3 months compared to the placebo group, many liver cancer centers in Asia still select multimodality approaches including transarterial chemoembolization, radiofrequency ablation, radiation therapy (RT) as well as systemic/intra-arterial chemotherapy. Recently advanced RT technologies have shown potential to improve survival without severe radiation-related toxicity. For locally advanced HCC patients with PVT, concurrent chemoradiotherapy (CCRT) has been applied as a loco-regional treatment and provides potential cures. We herein report our recent experience of a patient accompanying large HCC with PVT who successfully undergone CCRT followed by hepatic arterial infusion chemotherapy. (Journal of Liver Cancer 2015;15:52-56)
간담도내 Calcium - bilirubinate 결석을 갖는 환자에서 간흡충증의 유병율에 관한 연구
양태영(Tae Young Yang),서정철(Jeong Cheol Seo),김미자(Mi Ja Kim),정규성(Kyu Sung Chung),주기산(Gi San Ju),김태원(Tae Weon Kim),박찬국(Chan Gook Park),김만우(Man Woo Kim),김석일(Suk Il Kim) 대한내과학회 1996 대한내과학회지 Vol.50 No.1
N/A Objectives: Clonorchiasis is very common in the Far East and nation-wide in our country. Hepatobiliary stones is not rare in the group of hepatobiliary disease. Some debates has been made in the point of the relationship between clonorchiasis and calcium-bilirubiante stone. The object of the study is to evaluate the prevalence of clonorchiasis in the hepatobiliary stone patients. Methods: Ultrasonographic survey were made of 72 patients in Chosun University in Kwang-ju from August 1993 to July 1994. The ultrasonogram was Aloka model SSD 680(Tokyo, Japan). The hepatobiliary stones were classified based on their sonographic characteristics by modified Tsuchiya method. The stoo1 examination was carried out using the cellulous thick smear and the anti-C. sinensis IgG was measured by enzyme-linked immunosorbent assay. Results: The ultrasonographic analysis of stones showed that type 1 mainly composed of cholesterol stone was 45 cases(62.5%) and type 3 mainly composed of calcium-bilirubiante stone was 23 cases (31.9%). The prevalence of clonorchiasis in 72 cases of hepatobiliary stone patients, in 23 cases of calcium-bilirubinate stones, and in 49 cases of non calcium-bilirubinate stones were 18 cases(25%), 10 cases (43.5%), and 8 cases(16.3%) respectively. Conclusion: The relationship between Clonorchiasis and calcium-bilirubinate stone was statistically significant(p<0.01)