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『무구정광대다라니경(無垢淨光大陁羅尼經)』의 간행(刊行)에 대하여
박상국,Park, Sang-Guk 국립문화재연구원 2000 헤리티지:역사와 과학 Vol.33 No.-
이 논문은 1966년 경주 불국사 석가탑에서 발견된 무구정광대다라니경 목판본의 간행연도에 관한 연구이다. 이 다라니경은 한국에서 간행된 현존 세계 최고의 인쇄물로 널리 알려져 있다. 그런데 최근에 중국의 한 학자는 이 다라니경이 701년에 한역(漢譯)되고 702년에 중국 뤄양(낙양(洛陽))에서 인쇄한 것이라고 주장하였다. 이를 계기로 국제학술심포지엄 등이 열리는 등 최근 몇년 동안 다리니경에 대한 연구 논문이 집중적으로 발표되었다. 그러나 학자의 관점에 따라 다양한 의견이 제기됐음에도 불구하고 오히려 혼란을 초래한 논문도 많았다. 이 논문에서는 이 다라니경이 704년에 한역(漢譯)되었기 때문에 한역과 간행 연도에 대해 국내 학자들을 혼란스럽게 만든 중국학자의 주장이 잘못되었음을 규명하였다. 아울러 경전의 내용과 사리구(舍利具)의 명문에서 이 다리니경은 통일신라시대 탑을 만드는데 기본경전으로서의 기능을 한 것이었음을 밝혔다. 그러므로 석가탑 역시 이 다리니경의 조탑(造塔) 사상(思想)에 의해 조성되었고 이 다라니경은 석가탑 건립(751년)이 계기가 되어 간행된 목판본이다. This research paper has examined the question of the year of the publication of the wood block print, Mukujeonggwang Dae Darani Gyeong(Pure light Dharani Sutra). Published in Korea sometime before 751, it is known to be the oldest existing document printed with wood blocks in the world. Recently, a Chinese scholar claimed that this sutra was translated into Chinese in 701 and printed in Reoyang, China, in 702. These claims have lead to international symposiums and research papers on the Mukujeonggwang Dae Darani Gyeong. However, although diverse opinions and research were presented by various scholars, they all seem to be far fetched and do not answer the essential question of the sutra. The evidence in historic records shows that the translation into Chinese was done in 704 and not in 701. After it was translated into Chinese, it came to Korea and was printed with wood blocks. When Sokkatap was built in 751, a copy was placed in the pagoda. Moreover, the inscription on the sarira casket states that the construction of the pagoda was based on the theory of Jotapsasang contained in the sutra. Thus this proves that Mukujeonggwang Dae Darani Gyeong had to have been printed before 751.
광학적 Hough변환 결과로부터 직선과 타원의 실제 길이 추출
박상국,김성용,김수중,Park, Sang-Guk,Kim, Seong-Yong,Kim, Su-Jung 대한전자공학회 2000 電子工學會論文誌-SD (Semiconductor and devices) Vol.37 No.3
본 논문에서는 입력영상에 대한 광학적 Hough변환(HT)의 결과로부터 θ = θo + 90° 떨어진 지점에서 입력영상에 존재하는 직선과 타원의 장축의 길이 정보를 그리고 θ =θо 지점에서 타원의 단축의 길이정보를 추출하는 방법을 제안하였다. 각 지점에서 포락선의 최대점과 최소점 사이의 거리로부터 직선과 타원의 축의 실제길이를 약 98%의 정확도로 구할 수 있음을 시뮬레이션을 통하여 확인 하였다. 시뮬레이션 결과와 실험 결과를 비교하기 위하여 HT CGH 필터를 사용하여 광학적 실험을 행하였다. 실험을 통하여 광학적HT 결과가 이론적인 시뮬레이션 결과와 유사함을 확인하였다. In this paper, we propose a new method of finding the true length of the line and long axis of the ellipse at the $\theta$=$\theta$o+ 90$^{\circ}$ and short axis of the ellipse at the $\theta$ = $\theta$o from the Hough transform (HT) results. Through the simulations, we showed that the true length of the line and ellipse could be obtained with 98 % accuracy by using the distance from the maximum envelope to the minimum envelope. To compare the simulation results with the experimental results, we performed optical experiments by using a HT CGH filter. Through the experiments, we showed that our results were very similar to those of the simulation.
박상국 ( Sang Guk Park ),최동식 ( DONG SIK CHOI ),박장일 ( Jang Il Park ),정대영 ( Dae Young Jeoung ) 한국가축위생학회 2000 韓國家畜衛生學會誌 Vol.23 No.2
To establish the differential diagnosis and treatment method in bovine ovarian cysts, specially ovarian cysts with corpus luteum, serum progesterone (P4) concentration and ultrasonography for measuring the cystic wall thickness and diameter of cyst and corpus luteum were investigated from slaughtered cows with ovarian cysts. Ovarian cysts were classified 8 types by the number of cyst, cystic wall thickness and present of corpus luteum. Ovarian cysts with corpus luteum were 11(13.6%) of 81 cows and ovarian cysts without corpus luteum were 70 (86.4%) cows. The incidence rates of 8 various types of ovarian cysts were as follows; 2Ba 33.3%, 2Aa 25.9% and 2Bb 14.8%, respectively. The incidence rates of ovarian cysts without corpus luteum were follicular cyst 59.2% and luteal cyst 27.2%. The cystic wall thickness were 2Ab 3.7mm and 2Bb 3.5uun, and the serum P4 concentrations were above 2.0 ng/ia in lAa, lAb, iBa, 2Ab and 2Bb. respectively. In ovarian cysts with corpus luteum, the correlation coefficients between corpus luteum area and serum P4 concentration were 0.45. In ovarian cysts without corpus luteum, there was significantly positive correlations between cystic wall thickness and serum P4 concentration(r2 = 0.54, p<O.Ol). These results indicate that PGF2 a analogues can be choice for treatment of ovarian cysts with corpus luteum and above 3mm the cystic wall thickness because serum P4 concentrations were above 2.0 ng/`n€ in ovarian cysts with corpus luteum and thickened cystic wall. In conclusion, it is suggested that ultrasonography is useful diagnostic tool for diagnosis and selection of treatment remedy in cystic ovaries of bovine.
초음파검사(超音波檢査) 및 혈중(血中) progesterone 농도측정(濃度測定)에 의한 도축우(屠畜牛) 유래 란소낭종(卵巢囊腫)의 감별진단(鑑別診斷)
김상욱 ( Sang wook Kim ),박상국 ( Sang Guk Park ),정만호 ( Man Ho Chung ),박장일 ( Jang Il Park ),임종수 ( Jong Su Lim ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.21 No.1
To establish the differential diagnosis and treatment method in bovine ovarian cysts, specially ovarian cysts with corpus luteum, serum progesterone concentration and ulrasonography for measuring the cyctic area, thickness of cystic wall and echogenicity of corpus luteum were investigated in cystic ovaries from slaughtered cows. The incidence rates of ovarian cysts were follicular cyst 69.2% and luteal cyst 30.8%. The incidence rates of 8 various types of ovarian cysts were as follows; 2Ba 32.3%, 2Aa 25.8% and 2Bb 14.5%, respectively. The thickness of cystic wall were 2Bb 3.93mm, 2Ab 3.70mm and lAa 1.93mm and the serum progesterone concentrations were above 1.0ng/ml in 2Ab, 2Bb and lAa, respectively. The cystic area of ovarian cysts with corpus luteum was 288.30mm2, but ovarian cysts without corpus luteum 542.30mm2, and the thickness of cystic wall 2.12mm and 2.40mm, respectively. The serum progesterone concentration was 1.91ng/ml in ovarian cysts with corpus luteum and 1.20ng/ml ovarian cysts without corpus luteum. There was not the correlations between thickness of cystic wall and serum progesterone concentration in ovarian cysts with corpus luteum, whereas, was the correlations in ovarian cysts without corpus. These results indicated that PGF2a analogues can be choice for treating the ovarian cysts with corpus luteum because serum progesterone concentrations were above 1.0ng/ml in ovarian cysts with corpus luteum. In conclusion, it is suggest that ultrasonography is useful diagnose-tic tool for diagnosing and choicing of treatment remedy in cystic ovaries of bovine.