• Journal of Pharmaceutical Investigation
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• 제17권1호
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• pp.22-30
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• 1987

Evaluation method of crude drug preparations was studied in Saengmaek-san. Zig-zag TLC scanning profiles and high performance liquid chromatograms were obtained from Saengmaek-san and its each crude drug. A method using TLC densitometry and high performance liquid chromatography was established for the precise determination of ginsenoside $Rb_1$ in Saengmaek-san containing Ginseng Radix. Consequently, ginsenosicle $Rb_1$ content was 0.45-0.48 mg per g of Saengmaek-san. This method was found to be useful for the quality evaluation of oriental medicinal preparations.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1992년도 가을학술발표회 논문집
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• pp.27-46
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• 1992

• 한국수학사학회지
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• 제19권2호
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• pp.1-24
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• 2006

조선 산학의 퇴타술의 역사를 연구한다. 이상혁(李尙爀)$(1810\sim?)$의 익산(翼算)(1868)이 출판되기 전의 역사와 익산(翼算)의 결과로 나누어 연구한다. 경선징(慶善徵)$(1616\sim?)$의 묵사집산법(默思集算法)부터 남병길(南秉吉)$(1820\sim1869)$의 산학정의(算學正義)(1867)까지의 산서를 통하여 익산(翼算) 이전의 퇴타술은 큰 발전을 이루지 못한 것을 조사한다. 이상혁(李尙爀)은 조선(朝鮮) 산학(算學)에서 가장 독창적인 방법을 써서 새로운 결과를 얻어낸다. 그는 퇴타술을 구조적으로 해결하고, 또 새로운 문제인 절적(截積)과 이를 위한 분적법(分積法)을 도입하여 이의 구조도 완전히 밝혀내었다.

• Journal of Microbiology and Biotechnology
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• 제18권3호
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• pp.397-403
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• 2008

Nikkomycins are a group of peptidyl nucleoside antibiotics with potent fungicidal, insecticidal, and acaricidal activities. sanN was cloned from the partial genomic library of Streptomyces ansochromogenes 7100. Gene disruption and complementation analysis demonstrated that sanN is essential for nikkomycin biosynthesis in S. ansochromogenes. Primer extension assay indicated that sanN is transcribed from two promoters (sanN-P1 and sanN-P2), and sanN-P2 plays a more important role in nikkomycin biosynthesis. Purified recombinant SanN acts as a dehydrogenase to convert benzoate-CoA to benzaldehyde in a random-order mechanism in vitro, with respective $K_{cat}/K_m$$ values of $3.8mM^{-1}s^{-1}\;and\;12.0mM^{-1}s^{-1}$ toward benzoate-CoA and NADH, suggesting that SanN catalyzes the formation of picolinaldehyde during biosynthesis of nikkomycin X and Z components in the wild-type stain. These data would facilitate us to understand the biosynthetic pathway of nikkomycins and to consider the combinatorial synthesis of novel antibiotic derivatives.

• 한국수학사학회지
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• 제18권4호
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• pp.1-16
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• 2005

17세기 이전에 조선 산학자가 저술한 산서로 그 출판 연대가 확인된 것은 숙종26년(1700)에 출판된 박율(1621-?)의 산학원본이 유일하다. 이보다 먼저 출판된 것으로 추정되는 산서는 경선징(1615-?)의 묵사집산법이 있다. 조선의 산서로 산학원본은 천원술을 최초로 사용하고 있는 산서이고, 이는 그 후 여러 산서에서 인용되었다. 산학원본을 고려대학교 도서관에서 찾아내었다. 이 논문은 산학원본의 역사적 가치와 함께 조선 산학의 발전에 끼친 영향을 조사하고, 이를 통하여 박율이 지대를 앞서간 뛰어난 수학자임을 확인한다

• 대한상한금궤의학회지
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• 제7권1호
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• pp.115-125
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• 2015

Objective : This case report aims to show the effect of Huini-san on depressive disorder. the patient was diagnosed with Soeum-byung based on Shanghanlun provisions. Methods : According to Diagnostic system based on Shanghanlun provisions, the patient was diagnosed with Soeum-byung and the patients are treated with Huini-san. We evaluated the results of treatment by Korean Version of the Remission from Depression Questionnaire. Results : After taking Huini-san decoction for 2 month, the symptoms of patients improved Conclusions : This case report shows that effectiveness of using Huini-san according to Diagnostic system based on Shanghanlun provisions on depressive disorder.

• Fibers and Polymers
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• 제4권3호
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• pp.97-101
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• 2003

Polymer/silicate nanocomposites were prepared via two-step manufacturing process: a master batch preparation and then mixing with matrix polymer. A hybrid of PMMA and Na-MMT with exfoliated structure was first prepared by emulsion polymerization of MMA in the presence of Na-MMT. For the case that SAN24, miscible with PMMA, is used as matrix, we could prepare a nanocomposite with exfoliated structure. However, SAN31 nanocomposite shows the aggregation and/or reordering of the silicate layers due to the immiscibility between SAN31 and PMMA.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2002년도 추계학술발표논문집 (상)
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• pp.159-162
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• 2002

최근 SAN과 NAS와 같은 기술의 발전과 함께 대용량의 데이터를 효과적으로 백업하기 위한 요구들이 증가되고 있다. 본 논문에서는 백업을 위해 제안된 개방형 표준 프로토콜 NDMP를 이용하여 SAN 환경에 적합한 백업 소프트웨어를 설계하고 구현한다. 본 백업 소프트웨어는 일반 과일 시스템의 백업은 물론 데이터베이스, 원시 데이터의 백업이 가능하다. 또한 SAN 환경에 적합하도록 Lan-free 백업과 온라인 백업을 지원한다.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 1989년도 제2차 학술발표초록집
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• pp.44-45
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• 1989

• 한국수학사학회지
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• 제27권4호
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• pp.259-269
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• 2014

In China and Joseon, the measurement of the areas of various plane figures is a very important subject for mathematical officials because it is connected directly with tax problems. Most of mathematical texts in China and Joseon contained Chinese character '田', which means a field for farming, in title name for parts that dealt with problems of areas and treated as areas of plane figures. The form of mathematical texts in Joseon is identical with those in China because mathematicians in Joseon referred to texts in China. Gyeong SeonJing and Hong JeongHa also referred to Chinese texts. But they added their interpretations or investigated new methods for the measurement of areas. In this paper, we investigate the history of the measurement of areas in Joseon, which described in two books MukSaJibSanBeob and GuIlJib, with comparing some mathematical texts in China.