• Title/Summary/Keyword: Chung Nam Dae

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Development of economic preparative method of (S)-(+)-enantiomer of arylpropionic acids

  • Lee, Jae;Shin, Dae;Seo, Sang;Kang, Jong-Seong;Kim, Kyeong
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.395.1-395.1
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    • 2002
  • Many of the chiral NSAIDs are marketed as racemates. There is an increasing interest in developing the enantiomerically pure forms of the NSAIDs because the anti-inflammatory activity of NSAIDs have previously been shown to be largely sterospecific for the (S)-(+)-enantiomer. Therefore, simple and economic preparative method to identify the (S)-(+)-enantiomer of NSAIDs (aryl propionic acids) as diastereomeric solvation complex was developed using several chiral solvating agents by recrystallization of racemate and solvent fractionation. (omitted)

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Study on the Geometrical Properties of Brown Rice on Shape Factors

  • Ning, Xiao Feng;Kang, Tae-Hwan;Kim, Oui-Woung;Han, Chung-Su
    • Journal of Biosystems Engineering
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    • v.37 no.2
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    • pp.90-99
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    • 2012
  • Purpose: This study was conducted to investigate the optimal sorting factors in establishing an efficient sorting technology for brown rice. Methods: The brown rice varieties used in this study were Il Pum, Chu Cheong, Dong Jin, Un Gwang, Nam Pyeong, and Dae An. These were classified into whole grain, unriped grain, and green dead rice. The shape factors were analyzed based on length, width and thickness of the grains. Results: The results revealed that the maximum length among whole grain, unriped grain, and green dead rice was observed in Dae An variety while Chu Cheong variety showed the minimum. Further more, Il Pum brown rice showed the maximum width while Dong Jin variety showed the minimum. In the case of thickness, the maximum was observed in Un Gwang variety and that of the minimum among Nam Pyeong variety for both whole grain and unriped grain. Conclusions: The length and width can be used as determinants in sorting factors of whole grain and green dead rice, and the thickness can be considered as optimum sorting factor of whole grain and unriped grain.

Study on Efficient Operation on Aerial Fire Fighting Helicopter in Forest Fire (산불진화 헬기의 효율적인 운영방안 연구)

  • Bae, Taek-Hoon;Lee, Si-Young
    • Fire Science and Engineering
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    • v.29 no.1
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    • pp.45-52
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    • 2015
  • This research analyzed synthetically the characteristic of forest helicopter, fire helicopter, civil helicopter and deployment assets are in operated in forest fire places of our country. Looking at arrangement of helicopter, Chung-buk, Jeonnam has a number of outbreak a forest fire rather than others but it is weak of initial fire attack by a gap of helicopter arrangement. Geong-gi has many helicopter while it is a relatively few outbreak of a helicopter. According to this, We read to consider that Gang-won need to rent more a helicopters and civil helicopter in each weak areas by government expense. In addition Dae-jeon, Chung-buk and Jeon-nam need arrangement of helicopter after secure rental budget. Especially, Dae-jeon need to consider opening base of fire helicopter.

Preliminary Study to Develop an Instrument for Pattern Identification and Evaluation for Chemotherapy-induced Peripheral Neuropathy (CIPN) (항암화학요법 유발 말초신경병증 변증평가도구 개발을 위한 기초연구)

  • Park, Ji-hye;Jung, In-chul;Lee, Suk-hoon;Lee, Jin-sun;Bae, Kyeo-re;Cho, Chong-kwan;Yoo, Hwa-seung
    • The Journal of Internal Korean Medicine
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    • v.37 no.1
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    • pp.77-89
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    • 2016
  • Objectives: The aim of this study was to develop a standard instrument of pattern identification and evaluation for chemotherapy-induced peripheral neuropathy (CIPN).Methods: The advisory committee for this study was organized by 12 professors of traditional Korean medicine from the Korean Association of Traditional Oncology. The items and structure of the instrument were designed based on a review of previous publications. We revised the instrument in consultation with the advisory committee and received additional advice via email.Results: We divided the symptoms and signs of CIPN into four pattern identifications: wind arthralgia (風痺), cold arthralgia (寒痺), dampness arthralgia (濕痺), and arthralgia of the deficiency type (虛痺). We obtained the mean weights to reflect the standard deviations from each symptom of the four pattern identifications, which were scored on a 5-point scale by the advisor committee. After we obtained the answers to discrimination between variable symptoms (變症) and ordinary symptoms (素症) from the 12 experts, we gained the final weight from the combination of the ratio of pattern identification to the number of total answers of the advisory committee and the mean weight.Conclusions: The Instrument on Pattern Identification and Evaluation for CIPN was developed through a discussion between 12 experts. There was a limitation that the validity and reliability of this instrument have not been proven. However, the significance of this study was that it is the first Instrument on Pattern Identification and Evaluation aimed at assessing CIPN in traditional Korean medicine.

The Study of Indoor Air Quality at Schools in Chung-Nam Area (충남 지역 학교의 실내공기질에 관한 연구)

  • Cho, Tae-Jin;Choi, Han-Seam;Jeon, Young-Taek;Lee, Che-Won;Lee, Jong-Dae;Jou, Hye-Mee;Son, Bu-Soon
    • Journal of Environmental Science International
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    • v.17 no.5
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    • pp.501-507
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    • 2008
  • The concentrations of HCHO(formaldehyde), $PM_{10}$(particulate matter), $CO_2$(carbon dioxide) and TBC(total bacteria counter) distribution in schools(Chung-Nam Area) were examined, and the results were compared with the recommended criterion of the administration law of indoor air. The subjects were an elementary school, a middle school and a high school in Chung-Nam area, and the concentration of TBC was examined by Single Stage Air Cascade Sampler, which applied the inertia collision catching method of 28.29L/min(flux) during 5 months from March, 2007 to July, 2007. The instrument(LD-3B, SIBATA Company)was used to examine $PM_{10}$, by a light scattering method and a light transmission method. The instrument(Airboxx(KD Engineering) was used to examine $CO_2$. The instrument(Z300XP(Environmental sensor)was used to examine HCHO. The result indicated that the $PM_{10}$ average concentrations of the surveyed classrooms were $49{\mu}g/m^3$ in Spring and $59{\mu}g/m^3$ in Summer. The $CO_2$ average concentration of the surveyed schools were 576 ppm in the classroom and 527 ppm in the stateroom. The average concentration of TBC were $729CFU/m^3$ in an elementary school, $401CFU/m^3$ in a middle school, $381CFU/m^3$ in a high school. The HCHO average concentration of the surveyed schools were 0.03 ppm in the classroom, 0.02 ppm in the stateroom.

Effect of Modification of SeO2/Acrylamide Ratios on Diffraction Efficiencies in PVA/AA Photopolymer Films

  • Kim, Dae-Heum;Lim, Ji-Yun;Nam, Seung-Woong;Chung, Dae-Won
    • Journal of the Optical Society of Korea
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    • v.11 no.4
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    • pp.183-191
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    • 2007
  • The highest diffraction efficiency(DE) value after illumination and post-curing of photopolymer films were obtained at the $SeO_2$/Acrylamide(AA) Ratios of AA 3.0 g, $SeO_2$ 1.0g and the DE's were stable values of over 90%. By the addition of $SeO_2$, the maximum DE at the initial stage of illumination was reached at 300 seconds, which suggests $SeO_2$ slows down the photopolymerization of AA, which enhances the maximum DE value by giving more migration time. DE variation curve for the optimum composition during extended-time illumination of 9,000 seconds resembles a sine curve due to the combination of the monomer diffusion and the photopolymerization, and the photopolymer film expanded by about 8% after photopolymerization due to monomer migration.