• Proceedings of the Plant Resources Society of Korea Conference
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• 2002.04a
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• pp.48-48
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• 2002

• Journal for History of Mathematics
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• v.20 no.3
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• pp.59-72
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• 2007

In this paper we find the germ of geometric interpretation of complex number in the Euclid Element and try to show the evolution of geometric interpretation of complex number by through Descarte, Wallis, Vessel. As a result, relations and differences between them are found. They related line with complex number and interpreted complex number geometrically by generalizing the multiplication operation.

• Digital Contents
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• no.8 s.135
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• pp.97-99
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• 2004

일찍 찾아온 무더위가 기승이다. 찌는 듯한 여름밤을 달랠 수 있는 게임으로는‘레이싱게임’이 제격이다. 실제 자동차 경주를 방불케 하는 조작감과 화려한 그래픽, 터질듯한 엔진의 굉음과 격렬한 메탈음악을 들으면서 새벽의 거리를 질주하면 무더위가 싹 가실 듯하다.

• Korean Journal of Medicinal Crop Science
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• v.12 no.3
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• pp.226-230
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• 2004

Plant growth should be affected by mulching method. The study was done to examine the effect of different mulching methods on growth and yield of Atractylodes japonica Koidz. The experiment was done by six different mulching methods; no mulching, rice straw, transparent polyethylene (PE), black PE, two combined treatments of rice hull and transparent PE or black PE. Green shoot and related characters, growth and yield of early and late stages were measured on May 8, June 8 and October 26, respectively. Green shoot fresh weight was the highest in transparent PE mulching, while number of leaves, shoot and stem lengths were the greatest in rice straw mulching of the methods. In its early stage, rice straw mulching had the fewest number of leaves, roots, stems, the smallest width of leaves, and the least fresh weights of shoots and rhizomes. Combined mulching of black PE and rice hull showed the highest values in root-related characters; number of roots, fresh weights of rhizomes and roots. In its late stage, the treatment effects shown in the early stage disappeared owing to high temperature of mid-summer so that there was no significant difference between the mulching treatments. Yield per unit area and marketable yield were the highest in rice straw mulching, and combined mulching of black PE and rice hull.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.50 no.spc1
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• pp.175-180
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• 2005

This study was carried out to determine total contents of phenol and flavonoid in common and tartary buckwheat for the purpose of developing new kind of functional food with buckwheat materials. Total content of phenol and flavonoid in seeds of tartary buckwheat were higher than that of common buckwheat. It showed same tendency in groats and hulls. Total content of phenol and flavonoid in groats showed higher than hulls in tartary buckwheat while those of hulls was a little higher than groats in common buckwheat seed. Rutin content in common buckwheat was higher in odor of the hulls (25.2 mg/100 g)>dehulled seed(19.8 mg/100 g)>groats (12.8mg/100 g). But tartary buckwheat was higher in oder of the groats(2042.1 mg/100 g)>dehulled seed (1375.8 mg/100 g)>hulls(138.7 mg/100 g). Flavanol content in dehulled seeds of the tartary and common buckwheat did not show the difference. However, flavanol contents in leaf, stem and spouts of tartary buckwheat were respectively higher than in those of common. Among the flavanols, catechin content was highest in all plant parts of their buckwheat and also was higher in odor of epicatechin>epicatechingallate. However, epicatechingallate content in sprouts of both buckwheat species was about 30-40 times higher than seeds.

• 한국약용작물학회:학술대회논문집
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• 2007.05a
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• pp.68-69
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• 2007

• 건강소식
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• v.34 no.7
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• pp.26-27
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• 2010

무더운여름, 뜨거운 태양 아래 서면 시원하고, 달콤한 아이스크림이 유혹의 손길을 뻗쳐온다. 입안에서 스르륵 녹아내리는 아이스크림을 한 입 베어 물면, 한순간 무더위가 싹 잊혀진다. 하지만 아이스크림의 당분은 비만을 부르는 주요 원인 중 하나이다. 달콤한 유혹, 당분이 비만을 부르는 이유와 당(糖)의 유혹을 뿌리치는 방법에 대해서 알아본다.

• 건강소식
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• v.37 no.2
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• pp.34-37
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• 2013

된장찌개, 상추쌈, 불고기, 갈치조림 등 맛깔스럽게 밥상이 차려져 있다. 군침을 흘리며 냉큼 다가앉아 음식을 한입 넣는 순간, 염분기가 전혀 없는 맹탕의 맛이라면 첫마디가 어떻게 나올까? '무슨 맛이 이래?'라는 말이 절로 나올 것이다. 아무리 갖은 양념을 하여도 염분기가 없다면 입맛은 싹 사라질 것이다.

• The Hankook-Saengyark Bo
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• no.242
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• pp.5-5
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• 2000

약초 방향제품 잇따라 개발(제천농기센터, 비누$\cdot$베개등 선봬) - 두충 과립차 개발 - 경남농업기술원 어성초 재배방법 구명(중금속 해독작용, 건강식품으로 각광) - 율무씨앗 소독 싹 발생률 23$\%$ 향상 모잘록병도 크게 줄어 - 황기 일관작업기 개발(이랑만들기, 제초제 살포 동시에)

• The Science & Technology
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• v.30 no.8 s.339
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• pp.75-80
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• 1997

1980년대 초에 싹튼 퍼스널컴퓨터의 혁명은 오늘날 우리 사회와 일상생활에 일찍이 없었던 큰 변화의 바람을 몰고 왔다. 이 변화의 바람은 더욱 가속화되어 21세기에는 컴퓨터는 물론 메모리와 무선 및 광대역통신기술의 비약적인 발전을 가져와 우리의 생활도 몰라보게 바뀔 것으로 전망된다. 이런 변화의 싹을 '잉태'하고 있는 세계 주요 컴퓨터연구소의 연구현장을 찾아 그 현황을 알아본다.