• 한국작물학회:학술대회논문집
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• 한국작물학회 2023년도 춘계학술대회
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• pp.43-43
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• 2023

• 한국작물학회:학술대회논문집
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• 한국작물학회 2019년도 춘계학술대회
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• pp.176-176
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• 2019

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.330-330
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• 2022

In recent studies, cold plasma has been used to induce exudation of polyphenols and flavonoids from food materials, leading to enhancement of functional properties. And it is known that polyphenols interact with inflammation related metabolism. The objectives of this study were to investigate the effects of cold plasma treatments on the increase of total phenolic content (TPC), total flavonoid content (TFC), and anti-inflammatory activities of 'Sinpalkwang' peanut (Arachis hypogaea L.) hull. Plasma treatments were carried out using a dielectric barrier discharge gas exchange system at different radicals and temperatures (O₃-25℃, O₃-150℃, NO_x-150℃). Significant differences in TPC, TFC, and inflammatory mediator such as nitric oxide (NO) and tumor necrosis factor a (TNF-α) in lipopolysaccharide stimulated Raw 264.7 macrophages were observed between treated and non-treated peanut hull samples (p < 0.001). Cold plasma treated samples showed higher content (TPC: 2.87-2.93 mg/g sample, TFC: 0.96-0.98 mg/g sample) than non-treated sample (TPC: 2.47 mg/g sample, TFC: 0.78 mg/g sample). Cold plasma treated samples showed lower content of NO (3.3-5.0 uM) and TNF-α (141.4-162.2 ng/mL) than non-treated sample (NO: 11.1 uM, TNF-α: 210.2 ng/mL). This study suggests that cold plasma has potential to improve functionalities of food materials and that cold plasma treated peanut hull can be used as immune enhancing materials.

• 대기
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• 제24권1호
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• pp.69-76
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• 2014

Urbanization affects the local thermal environment due to the large scale land use changes. To investigate the weather environment change of large scale urban redevelopment, 9 surface temperature and humidity observations were accomplished at Eunpyeong new town area. The observation period is from March 2007 to February 2010. In the center of development area, the air temperature has increased and relative humidity has decreased, by the changes of the land cover and building construction. In the area where the green zone is maintained, air temperature and relative humidity were not changed significantly. The air temperature and relative humidity for the other development observation stations is decreased and increased, respectively. The relative temperature difference between study area and a neighboring rural location was increased during observation periods. The difference is the highest during winter. The urban-rural minimum temperature difference was increased at development area, which means that urbanization affects increasing of minimum temperature in study area.

• 한국환경농학회지
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• 제37권3호
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• pp.160-165
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• 2018

BACKGROUND: Mixed cropping of legume and grass was effective system in view point of providing organic matter and nitrogen or reducing the nitrogen starvation of following crop. The relation of the change of N and P constituents depending on the cropping types and those effects on the growth and nutrient uptake of the following crop were observed. METHODS AND RESULTS: Three cropping types, hairy vetch mono cropping, barley mono cropping, and mixed cropping of hairy vetch and barley were applied. Soil properties, growth characteristics, and nitrogen production of green manure crops were observed. In additions, the effect of cropping types on the growth pattern of corn as the following crop was observed. In the mixed cropping system, creeping type hairy vetch climbed to the erect type barely for light utilization resulting in improvement of light interception rate and higher LAI (Leaf Area Index) than in mono cropping. Mixed cropping showed higher biomass production and soil nitrogen availability among the cropping types, indicating relatively much more nutrient supply and higher yield production of following crop. CONCLUSION: Mixed cropping showed relatively higher LAI (dry matter) mainly because of intense competition for light utilization usually after flowering stage. Mixed cropping also showed relatively higher yield of corn, the following crop rather than other types, mainly due to the more biomass production potential and higher N and P production ability. Therefore, mixed cropping was adaptable method to reduce or replace chemical fertilizer application for environmentally-friendly agriculture.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.75-75
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• 2017

Rye is cultivated on about 30,000ha domestically for forage and green-manure production in Korea. 'Daegokgreen' has been developed as a good quality rye cultivar for forage and green-manure, which was doubled-chromosome by colchicine treatment of diploid rye cultivar 'Gogu' in 2010. By the colchicine treatment with 0.05% for 12 hours at $2^{nd}$ leaf stage of 'Gogu', 31 tetraploid plants were obtained and they produced 2,470 seeds with 135 spikes. There was 4.4 in the number of spikes per plant, 18.3 in grain number per spike, and 37.6 g in the1,000-grain weight. The heading date of 'Daegokgreen' was April 11, which was two days later on average compared with 'Gogu'. The biomass (fresh weight) of 'Daegokgreen' was 3,701kg, which was similar to 'Gogu'. The average crude protein content of 'Daegokgreen' was 8.9%, which was 1.0% point higher than 'Gogu'. 'Daegokgreen' was found to be strong resistant to winter-kill and can be adapted to before maize cultivation.

• 한국물환경학회지
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• 제26권4호
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• pp.654-663
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• 2010

Attention has increasingly focused on the pollutant load discharged from rural area since the enforcement of total maximum daily loads (TMDLs) in korea. As one of the methods to control the inflow of pollutant load during wet weather events, local governments are attempting to apply non-point source control facility. To design those facilities appropriately, it is essential to understand the runoff characteristics of pollutants such as TSS, $BOD_5$, $COD_{Cr}$, TP and TN. In the paper, the quantitative analyses for pollutant runoff characteristics were examined in a small rural watershed with the area of about 53 hectares. For a dry weather day and wet weather events, variation patterns of dry weather flow and runoff characteristics of wet weather flows were monitored and investigated. The runoff model using XP-SWMM reflecting the landuse types of the watershed in detail was simulated to perform the sensitivity analyses for several factors influencing on their hydrograph and pollutographs. As a result, for the case of medium and small rainfall events (i. e. total rainfall of 35.8 and 17.5 mm), the impervious area including green house, roof and road which covers relatively low portion of total area (i. e. 16%) caused substantial first flush and the majority of total runoff load. Therefore, it has been concluded that the runoff characteristics of each pollutant and distribution of impervious area should be considered for the establishment of the control strategy of non-point pollutant runoff at a rural area.

• 한국의류학회지
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• 제41권2호
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• pp.352-361
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• 2017

This study prepared 5 retroreflective fabrics of glass beads and colors of silver, gold and purple in order to characterize morphologies, luminance and illuminance properties. Retroreflective fabrics were prepared according to division and area by Samp.1 (Division 2, area $80cm^2$), Samp.2 (Division 2, area $60cm^2$), Samp.3(Division 3, area $60cm^2$), Samp.4 (Division 5, area $50cm^2$), and Samp.5 (Division 1, area $100cm^2$). The results of the morphologies indicate that the back side of retroreflective fabrics was the 3M-Sv, RF-Sv. The RF-Gd of the fabrics were woven fabrics and the SRF-Sv, SRF-Pp was knitting. The largest glass bead size was 3M-Sv and the smallest was SRF-Pp. RF-Sv was the thinnest and SRF-Sv, SRF-Pp were the thickest. The results of luminance properties indicated a tendency to decrease slightly as the number of divisions and area increased, except for Samp.2 to Samp.3. The result of illuminance properties tend to increase as the number of LED becomes greater than the number of divisions in the same area; in addition, the higher the luminance as a whole increases. The results show that it is preferable to use a silver-colored RF-Sv which has the highest luminance and physical properties when a retroreflective fabric is applied to clothes.

• 한국육종학회지
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• 제51권4호
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• pp.496-503
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• 2019

'새금'은 '대풍'을 모본, SS98207-3SSD-168를 부본으로 2003년 인공교배하여 계통육종법에 의하여 개발된 품종이다. 2009~2010년 생산력검정시험에서 수량을 검정하고 표준품종 대비 9% 증수되어 '밀양232호'의 계통명을 부여한 후 2011~2013년 12개소에서 지역적응시험을 실시한 결과 내탈립성, 내도복성이 강하고 착협고가 높아 기계수확에 적합한 초형으로 평가되어 2013년 농작물 직무육성 심의위원회에 상정하여 '새금'으로 명명하고 차년도 신품종 출원 및 국가품종목록등재 과정을 거쳤다. '새금'은 유한신육형, 화색이 백색, 종실은 종피와 제색이 황색이면서 모양이 구형인 장류 및 두부용 콩 품종이다. 개화기가 8월 2일, 성숙기가 10월 17일로 만생종이며 경장은 '대원콩' 보다 9 cm크며 주경절수가 16개로 많고, 백립중이 25.4 g인 특성을 지니고 있다. 불마름병과 콩모자이크바이러스는 자연이병포장에서 강한 것으로 조사되었으며 내도복성과 내탈립성 또한 강해 재배에 안정적이다. 두부가공적성은 '대원콩'과 비슷한 것으로 평가되었다. 수량성은 지역적응시험 결과 전북·전남·경북·경남 등 적응지역 평균 3.02 ton ha^-1로 '대원콩'과 대등하다. '새금'은 착협고가 18 cm로 높고 분지가 적은 초형에 도복에 강하고 내탈립성이 매우 강해 기계수확 적응성이 높은 품종이다.

• 한국자원식물학회지
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• 제18권1호
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• pp.32-56
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• 2005

This study aims to investigate the distribution of the useful resources plants and the flora of Deogyusan. The flora of Deogyusan was investigated from April in 2002 to November in 2003. Vascular plants of this area consist of total 549 taxa; 9 forma, 64 varieties, 476 species, 281 genera, 90 families. It corresponds to $13.5\%$ of totally 4,071 taxa appeared in Korea. Useful plants of this area were investigated 399 taxa. It corresponds to $72.5\%$ of collected plants in this area under our study. Among the useful plants, there are 205 taxa of edible source, 179 taxa of pasture source, 159 taxa of medicinal source, 70 taxa of ornamental source, 15 taxa of timber, and 17 taxa of industrial raw materials. Korean endemic plants were composed 18 families, 23 genera, 19 species, 4 varieties and totaling 25 taxa.