A Basic Study on Leaf and Stem Production of Angelica acutiloba

Choi,Seong-Kyu,Yun,Kyeong-won,Chon,Sang-Uk,Lee,Jong-Ill,Seo,Young-Nam,Seo,Kyoung-Sun,Choi,Kyeong-Ju 한국자원식물학회 2004 Plant Resources Vol.7 No.3

This study was conducted to develop effective production system in greenhouse for leaves and stems of Angelica acutiloba by using connect pots in 2003 and 2004. Seed germination rate and plant biomass of Angelica acutiloba collected in 2004 were higher than those harvested in 2003. Germination rate of Angelica acutiloba seeds collected in 2003 was 10%, while germination rate of seeds collected in 2004 was above 90%. Especially, plant growth and yield of Angelica acutiloba grown in connect pots sized with 4×4×5cm(length×width×height) were the highest. These results indicate that leaf and stem production of Angelica acutiloba can be improved by using connect pots and optimizing seed collecting time in greenhouse.

會計政策論 序說

崔鍾序 釜山 大學校 經營 經濟 硏究所 1988 經營 經濟 硏究 Vol.7 No.1

Grapefruit 종자 추출물의 항균성에 관한 연구

최종덕,서일원,조성환 國立統營水産專門大學 附設 水産科學硏究所 1990 수산과학연구소보고 Vol.2 No.-

Grapefruit seed extract(GFSE)의 여러가지 미생물에 대한 항균력과 물김치 저장 효과를 검토한 결과는 다음과 같다. 1. GFSE의 세균류에 대한 항균력에서 Vibrio속은 50ppm, Bacillus cereus와 Staphylococcus aureus는 30ppm, Serratia속은 10ppm 이상에서 균의 증식이 억제되었다. 2. 세균중 패혈증 원인균으로 알려진 Vibrio vu-Inificus에 대한 항균성은 nutrient broth에서 GFSE 30ppm 농도까지는 증식을 확인할 수 있었으나 50ppm 이상의 첨가에서는 72시간까지 균의 증식을 볼 수 없었다. 그리고 5% skim milk에서의 본 균에 대한 GFSE 살균력을 실험한 결과 5.2×10^5/ml에서 저장 120시간 후에는 GFSE농도 0, 10, 30, 50 및 100ppm에서 각각 9.6×10^3, 5.6×10^2, 48, 35/ml로 감소되어 GFSE농도 50ppm이상에서는 살균효과가 있음을 알 수 있었다. 3. 곰팡이류에 대한 항균력은 Aspergillus parasiticus가 100ppm, Aspergillus versicolor 50, Penicillium funiculosum 100, Pyrenochaeta terrestris 30 그리고 Trichoderma viride는 30ppm까지 증식하였으나 그 이상의 농도에서는 증식이 억제되었다. 4. 물김치에 GFSE를 각각 50, 100ppm 첨가하여 5℃와 20℃에서 저장하면서 pH변화를 확인한 결과 5℃에서는 20일과 25일, 20℃에서는 17일과 20일까지 pH변동이 거의 없어 물김치의 보존기간을 연장시킬수 있었다. This study was carried out to investigate the antimicrobial activity of the grapefruit seed extract (GFSE). The antimicrobial activity of GFSE was strong enough against such bacteria as Vibrio vulnificus, Vibrio fluvialis, Bacillus cereus, Staphylococcus aureus and Serratia sp. Growth of the above strains was inhibited by the GFSE'S concentration of 50 ppm. The growth of Vibrio vulnificus was completely inhibited by adding the 50 ppm GFSE to the nutrient broth medium with 3% NaCl. The cell counts of Vibrio vulnificus 5.2×10^5 at first in 5% skim milk containing GFSE 0, 10, 30, 50 and 100 ppm were reduced to 35, 48, 5.6×10^2, 5.3×10^3 and 9.6×10^3/ml after 120 hours, respectively. And growth of Aspergillus parasiticus, Aspergillus versicolor, Penicillium funiculosum, Pyrenochaeta terrestris and Trichoderma viride were inhibited by the concentration of GFSE 100, 50, 100, 10 and 30 ppm, respectively. The shelf life of Mulkimchi containing GFSE 50 and 100 ppm was 20 days longer than the control during storage at 5℃ and 20℃.

Plasminogen kringle (angiostatin) 분획의 유효부분 분석

최영기,서원덕,이종수,신광순,김철중 충남대학교 수의과대학 동물의과학연구소 1998 動物醫科學硏究誌 Vol.6 No.-

In order to inhibit the growth of the malignant tumor, the development of various drugs against the malignant tumors has been archived. The combination of these drugs made the tumor therapy possible, but in many cases, secondary matastasis of the tumor to the other organs after its removal has been frequently reported. The angiostain, recently purified and cloned, not only promtes the angiogenesis of the tumor itself in the primary tumor but also inhibits the angiogenesis and metastasis of the secondary tumors. In this study, the nucleic acid sequences of the angiostatin was investigated. And the angiostain gene was expressed in a prokayotic expression system(E. coli) and a eukayotic expression system(Pichia pastoris). The angiostain gene was futher subcloned into 6 clones to characterize its biological activity. In the near future the biological activity and the biochemical property of the protein encoded by each clone will be elucidated.

EDAP LT-01+ 체외충격파쇄석기를 이용한 요로결석 치험 1,816례 : A Report of 1,816 Cases

최동규,서기석,임정식 圓光大學校 醫科學硏究所 1995 圓光醫科學 Vol.11 No.2

Between February 8. 1990 and December 31. 1994, 1.816 renal units in 1.611 patients with urinary stones were treated with extracorporeal shock wave lithotripsy(ESWL) using the EDAP LT-01+ lithotriptor. The patients' mean age was 44.3 years with the range of 16 months to 92 years. Sex ratio was 1.39:1 with 936(58.2%) male and 675(41.8%) female patients. Locations of the stones were kidney in 746(41.1%) including 39 cases of staghorn calculi, ureter in 1061(58.4%) and bladder in 9 cases(0.5%). And mean diameter of the stones was 13mm ranging from 2mm to 80mm. Average number of treatments, average treatment time per session and average total storage per patient were 4.0 sessions, 37.6 minutes and 134.4. respectively. Of the 1,816 cases. 141 cases(7.8%) complained of severe pain requiring intravenous or intramuscular analgesics. Success rates by stone size were 98.0%(1,069 cases/1,091 cases, storage/treatment number: 74.7/2.7) in less than 10㎜, 94.4%(453 cases/480 cases, 146.1/4.5) in 10㎜ to 19㎜. 73.4%(116 cases/158 cases, 242.4/7.1) in 20㎜ to 29㎜ and 60.9%(53 cases/87 cases. 402.6/11.2) in more than 30㎜. Success rates by stone location were 66.7%(6/9) in bladder stones. 66.7%(26/39) in staghorn calculi. 77.9%(60/77) in ureteropelvic junction(UPJ) stones. 93.1%(658/707) in renal stones, 94.8%(458/483) in upper ureteral stones and 96.4%(483/501) in lower ureteral stones. Success rate(when patients having stone particles less than 4mm in diameter without causing urinary tract obstrution, were considered to be treated successfully) was 93.l%( 1,691/1,816) and stone-free rates was 88.9% (1,615/1.816). Additional measures used were double-J stenting in 91 cases, percutaneous nephrostomy in 42 cases and push-up in 39 cases. Post-ESWL complications were persistent gross hematuria lasting more than three days in 29 cases, high fever(>38℃) in 38 cases and steinstrasse in 109 cases. We conclude that extracorporeal shock wave lithotripsy with EDAP LT-01 + lithotriptor is an effective treatment modality for urinary stone less than 2.0㎝ in diameter even though retreatment rate is high.

公有林 經營合理化에 關한 硏究 : 太白市 公有林을 中心으로 A Model Analysis of Taebaek City Area

崔鍾天,金東周,徐榮完 江源大學校 林科大學 森林科學硏究所 1993 Journal of Forest Science Vol.9 No.-

본 연구는 江原道 道有林과 太白市 市有林의 經營實態와 문제점을 파악하고 그에 대한 개선 방안을 제시하는데 있으며 연구 결과는 다음과 같다. 1. 江原道 道有林은 25,896ha, 太白市 公有林은 550ha였으며, 太白市 公有林 중 道有林은 470ha, 太白市 私有林은 80ha로서 그의 관리는 太白市에서 담당하고 있다. 2. 太白市 公有林 550ha를 현지 조사한 결과 창죽동 산 1-2번지의 443ha를 제외하고 나머지 107ha는 32개 지역으로 小規模로 分散되어 있었다. 3. 창죽동 산 1-2번지에 소재하고 있는 산림의 경우 석탄공사에서 대부를 받아 석탄을 채취하고 있으며, 나머지 公有林은 小規模로 分散되어 있어 山林經營 生産基盤이 취약하고 經營管理 상태는 매우 열악한 것으로 나타났다. 이와같은 점을 고려해 볼 때 太白市 公有林의 合理的인 經營을 위해서는, 첫째, 小規模로 分散되어 있는 公有林을 團地化 할 필요가 있고, 둘째, 體系的인 經營 計劃을 수립하여 지속적인 木材生産이 가능하도록 유도하여야 하며, 세째, 自然休養林 造成을 고려한 合理的 山地利用 體系를 강구하여야 할 것이다. The situation and the problems of the management of public forest owend by Kangweon provincial and Taebaek municipal governments were investigated throughout literature and field survey. The results were as follows; 1. Kangweon provincial forest is 25,896ha and Taebaek municipal forest is 550ha, which consists of Kangweon provincial forest, 470ha and municipal forest, 80ha. Taebaek city is responsible for the management of the province-owned forest in its administrative district in addition to its own forest. 2. Except San 1-2Changjookdong(443ha) which is leased by Dai Han Coal. Cooperation for mining coal, the remaining forest(107ha) consists of 32 scattered, small-area forest lands. 3. Due to small area and dispersal of municipal forest, the management base for forest production is not sound and the management at present is nearly absent. Based on these actual conditions, the following suggestions are provided for the rationalization for the municipal forest management. First, scattered, small-scale forests should be gathered to prepare a management complex. Second, the sustaining production of timber should be attained through the estblishment of systematic management plan. Third, the reasonable system for forest land utilization shoule be established in consideration of the recreational use of public forest.

Dual-Slope A/D 變換器의 Analog回路設計 및 解析

서희돈,박종대,최세곤 영남대학교 공업기술연구소 1989 연구보고 Vol.17 No.1

This paper presents the design method of analog circuits for CMOS dual-slope integrating A/D converter and analyzes the results by computer simulation. The operational amplifier and the comparator composed of two stages are simulated in the CMOS circuit parameter. The offset voltage of designed OP-AMP is O volt and DC open loop voltage gain is 75 dB. The rise and fall time of the comparator is 14.4 nsec and 11.2 nsec, respectively. These rusults satisfy the performance requirement for the CMOS dual-slope integrating A/D converter.

대기입자 포집에 의한 공기중 최소검출 방사능농도의 결정

최종서,이원근 경희대학교 환경연구소 1997 環境硏究 論文集 Vol.7 No.-

The role of atmospheric radionuclide monitoring system is to measure the airborne radionuclide released from the nuclear explosive test or nuclear facility. Determination of the MDC(Minimum Detectable Concentration)s of 13 important radionuclides is essential for effective operation of the atmospheric radionuclide monitoring system under the CTBT(Comprehensive Test Ban Treaty) requirement. The radon and thron progeny exert a significant effect in determining the MDCs. The optimum decay and counting times were estimated through a series of experiments on the MDC. It was shown from the experimental results that for long-lived radionuclides, the MDCs were decreased slowly by elapsing the decay time, whereas the MDCs of short-lived radionuclides were increased continuously. In addition, the MDCs of most radionuclides are shown to decrease exponentially as counting time increases. By considering these analysis results, the optimum time parameters which could be satisfied with the CTBT technical requirements were determined. As above results, the optimum decay and counting times were selected 22 hour and 18 hour, respectively.

기업가치평가에 기반을 둔 회계연구의 정책적 시사점에 대한 소고 : lmplications for Financial Accounting Standards Setting

최종서 釜山 大學校 經營 經濟 硏究所 2002 經營 經濟 硏究 Vol.21 No.1

실증적 분석을 중심으로 하는 오늘날의 회계연구가 주된 관심을 기울이고 있는 연구영역에는 주식시장에서의 회계정보의 유용성을 검증하려는 자본시장연구와 경영자의 회계선택행위를 설명하고자 하는 회계정책연구가 포함된다. 전자는 1960년대 이후 재무회계의 중심적 패러다임으로 부상한 의사결정 유용성 관점을 반영하는 한편 후자는 자본시장이 발달되기 이전부터 회계의 본질적 기능으로 간주되어 온 수탁책임회계의 관점을 반영하고 있다. 두 연구 영역은 궁금적으로는 미시적, 거시적 차원에서의 최적 회계정책의 선택을 위한 지침을 제공함으로써 건전한 회계실무의 발전에 기여하고자 하는 목적을 지닌다. 그런데 이 두 영역을 대표하는 학자들 사이에 최근 자본시장연구의 중심적 연구동향을 이루고 있는 이른바 가치관련성 연구의 정책적 유용성을 둘러싸고 일련의 논쟁이 제기되었다. 본 연구에서는 두 진영의 입장과 논거가 무엇인지를 살펴보고 기업가치평가에 기반을 둔 회계연구가 갖는 시사점에 대해 고찰해 봄으로써 바람직한 회계연구 방향에 대한 견해를 정리한다.

육우 햄에 대한 소비자 선호 분석

박종섭, 최양일, 공기서, 여순식 忠北大學校 農業科學硏究所 2012 農業科學硏究 Vol.28 No.3

The purpose of this study is to estimate the implicit prices and consumers’ preference by attributes on Korean beef cattle ham using choice experiments. Main attributes are the country of origin, non-antibiotic certification, HACCP certification, addition of Korean agricultural products and use of natural colors. The implicit prices of each attribute and level for country of origin are estimated as KRW 919.0 for Korean pork, KRW 2,173. for imported beef and KRW 5,232.9 for Korean cattle beef. The other estimated implicit prices are KRW1,762.9 for non-antibiotic certification, KRW 577.5 for HACCP certification, KRW 57.9 for addition of Korean agricultural products and finally, KRW 572.9 for use of natural colors. This study is expected to contribute to the decision-making process of Korean beef cattle farmers by providing useful quantitative information on attributes and price that are related to consumers’ preference on Korean beef cattle ham.