• 한국생명과학회:학술대회논문집
• /
• 한국생명과학회 2001년도 10주년 기념 국제학술 심포지움 및 추계학술대회
• /
• pp.97-97
• /
• 2001

• 한국생명과학회:학술대회논문집
• /
• 한국생명과학회 2001년도 10주년 기념 국제학술 심포지움 및 추계학술대회
• /
• pp.98-98
• /
• 2001

• 한국생명과학회:학술대회논문집
• /
• 한국생명과학회 2001년도 10주년 기념 국제학술 심포지움 및 추계학술대회
• /
• pp.99-99
• /
• 2001

• 한국생명과학회:학술대회논문집
• /
• 한국생명과학회 2002년도 제35회 학술심포지움 및 춘계학술대회
• /
• pp.114-114
• /
• 2002

• 한국환경생태학회지
• /
• 제29권6호
• /
• pp.959-966
• /
• 2015

천연기념물은 역사와 자연적 가치가 있는 자연유산으로 희귀성, 특수성, 역사성 등 학술 가치가 커 자연문화재로 지정 및 보호됐으나 최근에는 삶의 질 향상에 따른 국민의 문화생활에 대한 욕구를 충족시키는 것도 천연기념물 관리의 주요한 임무가 되었다. 이를 위해 내장산국립공원에 소재하고 있는 천연기념물 제91호 내장산 굴거리나무군락과 제153호 장성 백양사 비자나무 숲을 대상으로 천연기념물의 지속 가능한 보전 및 이용 측면에서 방문객의 천연기념물에 대한 기본적 인식을 살펴보고 천연기념물 인식수준에 따른 자연에 대한 태도 차이를 분석하였다. 내장산국립공원 방문객 240명에 대한 설문조사 분석 결과, 응답자의 절반 이상이 대상지의 천연기념물을 정확히 인식하지 못하는 것으로 나타났으며, 특히 굴거리나무군락의 인지도가 상대적으로 비자나무 숲보다 더 낮았다. 또한, 천연기념물에 대한 인식수준이 높고, 문화재적 가치 수준이 높다고 인식한 집단의 자연에 대한 태도가 그렇지 않은 집단보다 긍정적임을 확인할 수 있었다. 이를 바탕으로 향후 이 지역의 천연기념물 활용방안 수립을 위한 정책시사점을 제안하였다.

• Bulletin of the Korean Chemical Society
• /
• 제27권9호
• /
• pp.1329-1334
• /
• 2006

The electrochemical reduction of coumarin, 7-acetoxy-4-methyl coumarin (AMC), and 7-acetoxy-4-bromomethyl coumarin (ABMC), in 0.1 M tetraethyl ammonium perchlorate/acetonitrile solution was carried out by direct current, differential pulse polarography, cyclic voltammetry, and controlled potential coulometry. The electrochemical reduction of ABMC was proceeded through three steps of electron transfer coupled with the chemical reactions. The color of solution was changed to yellow when the carbonyl group was reduced during 2nd step (-1.8 volts) and independented with cleavage of bromo group. Highest fluorescence intensity showed when the electrochemical reduction of AMC was controlled at near the potential (-2.3 volts vs. Ag/AgCl).

• 한국생물공학회:학술대회논문집
• /
• 한국생물공학회 2000년도 춘계학술발표대회
• /
• pp.251-254
• /
• 2000

Effect of carbon sources including agro-industrial byproduct on cell growth and production of curdlan by Agrobacterium sp. ATCC 31749 was investigated. Maximal production of curdlan was obtained when the carbon source was sucrose. The conversion rate of curdlan from 2% (w/v) sucrose was 59%. Glucose, mannose and maltose were also found to be good carbon sources for production of curdlan. Production of curdlan increased up to 3% (w/v) glucose as the carbon source and then decrease as the concentration of glucose increased. The major components of agro-industrial byproduct (AIB) were glucose, maltose, and maltose, and maltotriose. Agrobacterium sp.ATCC 31749 utilized up to 25% (v/v) AIB and produced curdlan with 29.8g/1.

• 한국생명과학회:학술대회논문집
• /
• 한국생명과학회 2001년도 10주년 기념 국제학술 심포지움 및 추계학술대회
• /
• pp.120-120
• /
• 2001

• 한국염색가공학회:학술대회논문집
• /
• 한국염색가공학회 2011년도 제45차 학술발표회
• /
• pp.41-41
• /
• 2011

The aims of this study were to examine the efficacy of phytochemicals of Rumex crispus as anti-oxidant and anti-browning agent. The bioactive properties of Rumex crispus as natural colorants were studied by total phenolic contents, DPPH radical scavenging, ABTS radical scavenging,lipid peroxidation, cell viability, singlet oxygen quenching and photoprotection effect. Among all of the results ($IC_{50}$: the concentration of various extracts required to exert 50% reducing effect), the higher activity of the extract was found in the ethyl acetate and butanol extracts. Anti-browning activity was evaluated by monitoring the change $L^*$, $a^*$, $b^*$ values and total color differences(${\Delta}E$). It was found that ethyl acetate and butanol extracts effectively inhibited browning in apple juice at a concentration below 0.3 mg/ml. Rumex crispus extracts used natural colorants could be of good resources as anti-oxidant and anti-browning agents. The results suggest that our study may contribute to the development of natural and functional materials with potential application to reduce oxidative damage.

• 대한원격탐사학회지
• /
• 제35권1호
• /
• pp.163-177
• /
• 2019

As inter-Korean relations progress, the issue of natural disasters which could directly affect the lives of the people in both Koreas, has not yet been discussed. Considering the current status of inter-Korean relations and the ongoing disaster-related damage in North Korea, it is imperative to establish a technical plan at the pan-governmental level to reduce the damage from natural disasters. The purpose of this study is to secure the Korea Peninsula against natural disasters by organizing South Korea's science and technologies related to natural disasters in order to reduce the damage, and to evaluate the applicability of said technologies. The situation of natural disasters in North Korea for 17 years has been summarized and reclassified based on eight types of natural disasters. Technologies related to natural disasters in South Korea were also investigated and reclassified. Based on the data, a priority evaluation was performed and the prioritization of technology application for each natural disaster type in North Korea was calculated through a quadrant analysis. As a result, the three major categories of high-priority technologies were classified as natural disaster monitoring with remote sensing and spatial information technology, construction of research basis and database based on geographic information system (GIS) and integrated management of complex natural disasters.