• Herbal Formula Science
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• v.9 no.1
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• pp.83-103
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• 2001

I studied conductant drug(使藥) in a prescription. As results of these studies, conductant drug(使藥) with meaning of medicinal guide(引經) were Achyranthis Bidentatae Radix(牛膝), Platycodi Radix(桔梗), Cinnabaris(朱砂), Sal Maritimus(食鹽), alcoholic drink(酒,) Cimicifugae Rhizoma(升麻) and Bupleuri Radix(柴胡). Conductant drugs with meaning of harmonizing medicines in a prescription were almost Glycyrrhizae Radix(甘草). And sometimes Mel(蜂蜜) was used with meaning of harmonizing medicines in pill. And Jujubae Fructus was used with meaning of harmonizing medicines in purgation medicines.

• Korean Journal of Weed Science
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• v.31 no.4
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• pp.330-339
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• 2011

This study was conducted to determine the herbicidal activity of herbicidal substances and identify them in bulbs of Lycoris flavescens. Methanol extract was purified by a series of chromatographic techniques including silica gel column chromatography, preparative TLC, and HPLC. The final HPLC gave two active fractions and two herbicidal substances were obtained. By GC/MS analysis, one was identified as galanthine (galanthan-1-ol) and the other was identified as montanine ($O^2$-methyl pancracine), an isoquinoline alkaloid. Montanine showed nearly 100% of growth inhibition on the shoot and root of barnyardgrass (Echinochloa crusgalli) seedlings at $20{\mu}g\;mL^{-1}$ as compared with the control. Meanwhile, methanol extract of L. flavescens bulbs showed only about 3.1% and 8.3% of growth inhibition on the shoot and root of rice cultivar, Hwayeongbyeo seedlings at $1,000{\mu}g\;mL^{-1}$ as compared with the control, respectively.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.24 no.1
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• pp.107-118
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• 1979

The critical low temperature of death under submerged soil was -5^\circ C for the underground tuber of Cyperus serotinus while the vegetative organ (tuber or bulb) of Sagittaria pygmaea and Potamogeton distinctus -6^\circ C, -7^\circ C respectively. On the critical high temperature of death in water bath with 45^\circ C. Potamogeton distinctus and Sagittaria pygmaea were 1 hour, 24 hours, but Cyperus serotinus did not die. When vegetative organs of perenivial weeds setted on the soil surface, the propagation organ of Potamegeton distinctus did not die by desication in 17% of soil moisture, but Cyperus serotinus and Sagittaria pygmaea were dead within 2 to 3 hours in 25^\circ C of soil moisture.

• Proceedings of the Korean Society of Food and Cookery Science Conference
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• 2003.10a
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• pp.95-95
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• 2003

본 연구에서는 아라비카종 커피 원두(Colombia Superimo)를 반열풍식ㆍ배치식 드럼 로스터를 사용하여 볶음강도를 강(full city roast), 중(high roast), 약(medium roast)으로 달리하였을 때 이화학적, 관능적 특성 및 항산화성이 어떻게 변화하는지를 알아보았다. 또한 이를 실제 음용 상태에서 측정하고자 가정용 커피메이커를 사용하여 추출한 커피를 시료로 이용하였다. 실험결과 일반성분에 있어서, 수분함량은 볶음 강도가 커질수록 감소하였으며 조 단백질은 볶은 후 약간 감소하였다. (중략)

• The Journal of Korean Obstetrics and Gynecology
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• v.28 no.3
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• pp.74-86
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• 2015

Objectives To identify whether Sovereign-Minister-Assistant-Courier (君臣佐使) Theory and Meridian Tropism (歸經) Theory of oral herbal medicine can be applied to trans-dermal medicine and whether pharmaceutical efficacy can be delivered to skin by Courier herb (使藥). Methods We reviewed previous studies related to Sovereign-Minister-Assistant-Courier Theory. And we examined whether prescription compositions based on Sovereign-Minister-Assistant-Courier Theory correspond with efficacy results of trans-dermal medicine experimentally identified. Results When Sovereign-Minister-Assistant-Courier Theory is applied to trans-dermal medicine, Courier herb act as delivering the effective components to the lesion penetrating skin barrier. And we identified that medicine absorbed through the digestive processes may not correspond with Courier herb applied topically. Conclusions We identified that Courier herb act as delivering the effective components to the lesion. But to strength evidences, additional studies on this action will be needed.

• Food Science and Preservation
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• v.6 no.3
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• pp.333-338
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• 1999

This studies were conducted to investigate the effects of calcium lactate and calcium acetate on the duality and shelf-life of kimchi. Kimchi was prepared by adding 0.5% mixtures of calcium lactate and calcium acetate at ratios of 04:0, 0.4:0.1, 0.3:0.2. 0.2:0.3, 0.1:0.4, 0:0.5, and fermented at 10$^{\circ}C$. The shelf-life of the kimchi by adding the mixtures of calcium lactate and calcium acetate at the ratio of 0.4:0.1, 0.3:0.2, 0.2:0.1 can be extended approximately 5 days. And, calcium contents of the kimchi tissue increased 46 to 66% against the control products. And also, demage of parenchyma cell was lower, the scores of crispness and overall taste of the kimchi treated were higher than those of the control.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.21 no.1
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• pp.20-23
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• 1976

Distribution of underground organs of perennial weeds in soil and ecological control measure were evaluated. Tubers of Cypers serotinus and Sagittaria pygmaea were mostly presented in a shallow depth of 0 to 5cm, however, Potamogeton distinctus's bulbs and Eleocharis kuroguwai's tubers were distributed in the soil at 10 to 20cm. A 20cm autumn plowing was, to some extent, effective to reduce Potamogeton distinctus. The herbicide, avirosan at 3kg/10a alone, was extremely effective in controlling Potamogeton distinctus.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1162-1165
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• 2012

어미로부터 생후 21일령(또는 28일령)에 젖을 때는 어린 자돈들은 면역력이 약하여 통상 폐사율이 30~40%까지 치솟는 등 자돈 관리가 국내 양돈 농가의 가장 큰 문제 중 하나로 인식되고 있다. 본 논문에서는 이러한 양돈 농가의 문제를 해결하기 위하여 자돈사(새끼돼지 축사)에 카메라와 마이크를 설치하고 획득된 영상과 소리 정보를 이용하여 자돈들을 모니터링하는 시스템을 제안한다. 제안된 시스템은 실시간으로 유입되는 영상과 소리 스트림 데이터로부터 각각 움직임 벡터와 평균 피치 값을 추출하여 이미 설정된 정상 상황의 임계치 값을 넘는 순간부터를 불특정 이상 상황이라 판단한다. 실제, 경상남도 함양군의 한 돼지 농장에 A/V 센서 기반의 실험 환경을 구축하고 2012년 6월 한 달간의 이유자돈 돈사의 모니터링 데이터 셋을 취득하였고 전반기 15일간의 데이터 셋을 이용하여 자돈사 모니터링 시스템의 프로토타입을 설계 구현하였으며 후반기 15일간의 A/V 스트림 데이터로는 검증 실험을 수행하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.180-180
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• 2018

가능최대강수량(PMP)은 대규모 수공구조물의 설계 시 기준이 되는 강수량으로, 최근 대규모 거대재난에 대비한 대피계획수립에 PMP를 활용하려는 움직임이 있으며 PMP에 대한 국내 연구가 활발히 수행되고 있다. PMP를 추정하기 위해 Hershfield의 통계적 방법에 대한 간단한 대안이 제안되었다. PMP는 물리적인 강우량 상한계로, 확률론적 개념과는 모순적이다. 또한, Hershfield의 PMP는 연 최대 시계열 평균의 선형함수로 주어지는 모양 매개변수를 가지는 GEV 분포의 약 60,000년 빈도임이 밝혀졌다. 따라서 본 연구에서는 Hershfield의 방법을 확률론적으로 해석하는 것이 바람직할 것으로 판단하였고, 기상청 ASOS 및 AWS 자료를 이용하여 우리나라 각 지점자료 중 10년 이상의 자료를 사용하여 Hershfield 방법을 적용하여 PMP를 산정하였다. 각 지점의 빈도계수를 구하여 우리나라 자료에 적합한 확률분포의 형태를 적용하였고, 분포형의 매개변수 값을 추정하였다. 또한, Hershfield의 빈도계수와, 우리나라 자료에 해당하는 빈도계수가 몇 년 빈도로 계산되는지 각각 확인해 보았다. ASOS 및 AWS 자료를 이용하여 연 최대 강수량 시계열 평균과 모양 매개변수의 관계 공식 또한 구성하였다. 본 연구의 방법을 검증하기 위하여 우리나라에서 제일 오래된 자료(57년)인 서울지점 자료를 이용하여 경험적인 분포함수와 본 연구에서 제안하고 있는 방법을 비롯한 다양한 방법을 통하여 구한 분포함수를 비교하여 도시하였다.

• Magazine of the Korea Concrete Institute
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• v.3 no.4
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• pp.79-88
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• 1991

In this study, fracture tests were carried out in order to investigate the fracture behavior of SFRC(Steel Fiber Peinforced Concrete) with initial cracks. The relationships between loading. strain, mld-span deflections and CMOD(Crack Mouth Opening Displacement) of the beams were observed under the three point loading system. The effect of the fiber content and the initial crack ratio on the concrete fracture behavior were studied and the fracture toughness, the critical energy release ratio and the fracture energy were also calcul ated from the test results. From the test results, it was known that when the fiber contents are between 0.5% and 1.0%, and 1.5% the average fracture energy of SFRC specimens is about 7~10 times. and about 15 times better than that of the plam concrete specimens respectively.ively.