• Bulletin of the Korean Chemical Society
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• 제21권12호
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• pp.1199-1201
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• 2000

31-Hydroxycarbowyacetylquercinic acid, a lanostenoid hydroxyl acid has been isolated from D. dickinsii by solbent extraction, silica gel column chromatography and recrystallization. The structure of this compound has been determined to be 31-hydroxycarboxyacetylquercinic acid by a combinationof spectral data and by HM-BC. This compound showed antimicrobial activities against human pathogenic fungi and bacteria.

• Proceedings of the KIEE Conference
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• 대한전기학회 1999년도 하계학술대회 논문집 D
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• pp.1581-1583
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• 1999

Epoxy Compound has been used as insulation material in cable accessories. During the applying voltage to cable, heat shock is induced to accessory by the temperature difference between atmosphere and conductor. In this study, crack resistance, thermal and mechanical properties were evaluated about conventional epoxy compound and rubber toughened epoxy compound. Because rubber absorbs the stress caused by heat shock, crack resistance of rubber toughened epoxy compound is high. In the case of low thermal expansion coefficient, the compound shows high crack resistance because of low volumetric change.

• Journal of Physiology & Pathology in Korean Medicine
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• 제21권1호
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• pp.231-234
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• 2007

Dichlororinated bibenzyl compound (4) has been isolated from the New Zealand liverwort. This compound was elucidated using 1D/2D-NMR and mass spectral method. The compound (3) inhibited the growth of the Gram positive bacterium Bacillus subtilis ATCC 19659, (2 mm inhibition zone and 2 mm inhibition zone at 30 ${\mu}$g/disc), Candida albicans ATCC 14053, (2 mm inhibition zone and 2 mm inhibition zone at 30 ${\mu}$g/disc), and the dermatophytic fungi Trichophyton mentagrophytes ATCC 28185, (12 mm inhibition zone at 30 ${\mu}$g/disc) and Cladosporium resinae ATCC 52833 (2 mm inhibition zone at 30 ${\mu}$g/disc). This bibenzyl compound (4) exhibited antimicrobial activity.

• YAKHAK HOEJI
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• 제31권1호
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• pp.19-24
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• 1987

In order to find out the pharmacologically active but less toxic compounds than piperine, the actions of several amide derivatives of 5-phenyl-2, 4-pentadienoic acid on the CNS depressant activities were examined. The nine amide derivatives were investigated by using ICR mice as an experimental amimals on acute toxicities, anticonvulsant, sedative, analgesic and antipyretic effects. In the case of acute toxicities, all derivatives were weaker than piperine except compound III. Compound I showed strong anticonvulsant activity. On the other hand, compound I, III and IV significantly prolonged the sleeping time induced by hexobarbital in mice. Compound I, III and IV exhibited better analgesic effect than aspirin while compound II, V, VII and IX showed similar antipyretic activity to aspirin.

• YAKHAK HOEJI
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• 제42권3호
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• pp.319-323
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• 1998

Effects of the aqueous extract of Cryptotympana atrata Fabricius (CAF) on the allergic reactions were investigated. In the present study, we examined the effect of CAF on compound 48/80-induced anaphylaxis in vivo and histamine release from rat peritoneal mast cells in vitro. CAF dose-dependently inhibited systemic anaphylaxis induced by compound 48/80 in mice. CAF significantly inhibited serum histamine levels induced by compound 48/80. CAF also inhibited histamine release from the rat peritoneal mast cells activated by compound 48/80. These results suggest that CAF may be useful for the prevention and treatment of allergy related disease.

• Proceedings of the Korean Society for Language and Information Conference
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• 한국언어정보학회 2002년도 Language, Information, and Computation Proceedings of The 16th Pacific Asia Conference
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• pp.79-91
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• 2002

Structural analysis of compound words is necessary and an important process in natural language processing. Proposed here is a corpus- and statistics- based method for the structural analysis of compound words in Japanese. We determine the structure of a compound word by using Internet corpus and calculating the strength of word association among its constituent words. Experiments with 5, 6, 7, and 8 kanji compound words show that our method works well and its performance is better than those of other comparable studies.

• Journal of Korean Institute of Industrial Engineers
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• 제31권1호
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• pp.27-35
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• 2005

Due to the importance of lead time demand in the design of inventory management systems, researchers and practitioners have paid continuous attention and a few analytic models using the compound distribution approach have been reported. However, since the nature of compound distributions is hardly amenable, the analytic models have been done by non‐recognition of the compound nature of some components to reduce the analytic task. This study concerns some of the important aspects in the analytic models. Through the theoretic examination of the analytic model approach and the comparison with the rigid compound stochastic process approach, this study clarifies the assumptions implicitly made by the analytic models and provides some precautions in using the analytic models. Illustrative examples are also presented.

• Proceedings of the KSME Conference
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.403-404
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• 2007

Compound eyes in nature present intriguing topics in physiological optics due to their unique optical scheme for imaging. For example, a bee's eye has thousands of integrated photonic units called ommatidia spherically arranged along a curvilinear surface so that each unit points in a different direction. The omni-directionally arranged ommatidium collects incident light with a narrow range of angular acceptance and independently contributes to the capability of wide field-of-view (FOV) detection. Artificial implementation of compound eyes has attracted a great deal of research interest because the wide FOV exhibits a huge potential for medical, industrial, and military applications. So far, imaging with a FOV over $90^{\circ}$ has been achieved only with fisheye lenses which rely on bulky and expensive multiple lenses and require stringent alignment. In this talk, we will discuss about the spherical 3D arrangement of the photonic structures of biologically inspired artificial compound eyes in a small form-factor to have and the functional and anatomical similiarity with natural compound eyes.

• THE JOURNAL OF KOREAN ORIENTAL ONCOLOGY
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• 제5권1호
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• pp.77-101
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• 1999

l. Sojeokbaekchoolsan compound treatment decreased pulmonary fibrosis induced by Bleomycin. 2. At 1 and 2 days after bleomycin treatment, Sojeokbaekchoolsan compound treatment decreased the number of neutrophils in bronchoalveolar lavage than those of bleomycin alone treatment. 3. Sojeokbaekcoolsan compound treatment increased the Fc receptor mediated rosette activity of alveolar macrophage decreased by bleomycin treatment. 4, At 10 days after bleomycin treatment, Sojeokbaekchoolsan compound treatment decreased the lipid peroxidation of lung tissue than those of bleomycin alone treatment. 5. Anti-tumor activity of Sojeokbaekchoolsan and bleomycin compound group was higher than those of bleomycin alone treated group to ascitic tumor caused by Sarcoma-180 tumor cells.

• Microbiology and Biotechnology Letters
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• 제27권4호
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• pp.339-343
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• 1999

Pasteurella haemolytica is well known to cause severe pneumonia, consolidation and oedema of the lung, and fibrinous pleurisy under the stress and infection of virus in the cattle. In the course of our screening for antimicrobial agents against P.haemloytica, compound 51086 has been isolated from the fermentation broth of Streptimyces sp. 51086. The compound 51086 was purified by SiO2, Sephadex LH-20 and ODS column chromatographies and HPLC, subsequently. The structure of compound 51086 was determined as hygromycin A by combination of 1H NMR, 13C NMR, HMBC, and ESI-MS. This compound showed significant antibacterial activity against P.haemolytica and P.multocida.