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아조벤젠 분자(Disperse Red 1)를 포함한 측쇄형 고분자에서 광유도 복굴절의 실시간적 조사
신희득,주원제,오차환,송석호,김필수,한양규 한양대학교 자연과학연구소 2001 自然科學論文集 Vol.20 No.-
아조벤젠 그룹을 포함한 측쇄형 고분자 필름(PDR1)에서 광 유도된 이방성을 실시간적으로 조사하였다. 수평, 수직한 흡수율의 변화를 광 유도된 복굴절의 기록, 감쇠, 소거, 완화 과정에 따라 측정하여, 매질 내의 아조벤젠 분자의 정렬상태와 복굴절과의 관계를 광 이성화과정으로 설명하였다. 또한 기록빔의 세기를 따른 수직, 수평한 흡수율의 변화와 유도된 복굴절의 관계를 조사하였다. The photo-induced anisotropy for a polymeric film(PDR1) containing azobenzene group as side-chain was investigated dynamically. The change of absrobances with parallel and perpendicular components was measured in recording, decaying, erasing and relaxation processes of photo-induced birefringence, so the relation between the alignment of azobenzene groups and the birefringence was well explained according to the photo-isomerization. Also, the dependence of the photo-induced birefringence on intensity of recording beam was investigated with changes of both absorbance and birefringence.
경북 지역의 지하수 수질에 관한 연구 3 : 용도별 지하수 수질의 특성 The Characterisrics of Groundwater by Used Types
한성욱,양득석,김복조 경운대학교 산업기술연구소 2002 産業技術硏究論文誌 Vol.5 No.1(B)
We investigated the contamination of groundwater in Gyeongbuk region about 180 points by used types and by rock types. From the view point of used types, the obtained results were as follows; The concentration of nitrate nitrogen was highest for agriculture used as 5.3mg/l and was medium for life used as 4.2mg/l while faculty used was lowest as 1.8mg/l. In case of chloride ion, the concentration was highest for agriculture use as 39.9mg/l and was medium for faculty used as 34.8mg/l, while life used was lowest as 23.5mg/l. In case of 359mg/l. In case of the concentration of pH and COD, it showed that the relationship with used types was not so good.
대구, 경북 지역의 토양 환경상태 연구 : 토양 용도별 및 토양오염지표에 의한 평가 Assessment by Soil Divisions and Soil Pollution Index
한성욱,양득석,김복조 경운대학교 산업기술연구소 2001 産業技術硏究論文誌 Vol.3 No.2(B)
We analysed the soil quality of Taegu and Kyungbuk region according to the 12 different sampling sites. The soil pH of the downtown area near road was lower than that of the other roads, which indicated that this acidification was probably attributed to the acid rain caused by the traffic exhaust gas such as SO_x and NO_x, Acidification was slightly severe in the rice paddy area than in the dry farming area. All concentration of 6 different heavy metal(Cu, As, Pb, Cd, Hg, Cr^+6) and organic contaminants (Cyanide, organic-p, PCBs, phenols) were found to be lower than the standard of soil pollution or not detected. An assessment using the SPI(Soil Pollution Index), which was developed to estimate soil quality, was performed. Each SPC(Soil Pollution Score) were evaluated with the results of the data from this study. The soil quality of most area of Taegu and kyungbuk was determined to Class 1, which indicated that the soil was healthy.
한성욱,김복조,양득석 경운대학교 산업기술연구소 2000 産業技術硏究論文誌 Vol.3 No.1(B)
We investigated the contamination of ground water in Kyungbuk region about 87 points by nitrate nitrogen(NO₃-N) concentration. The obtained results were as follows; 1. Nitrate nitrogen concentration is high showed 4.43㎎/ℓ for life used. The results seemed to contaminate because of excrement of men and livestock, decomposed animal and plant and chemical fertilizer. 2. Nitrate nitrogen concentration classified with about 11 region is high 14.9㎎/ℓ in storage tank.
양득석 ( Deuk Seok Yang ),임태효 ( Teo Hyo Im ),이인정 ( In Jung Lee ),정강영 ( Kang Young Jung ),김경훈 ( Gyeong Hoon Kim ),권헌각 ( Heon Gak Kwon ),유제철 ( Je-chul Yoo ),안정민 ( Jung Min Ahn ) 한국환경과학회 2018 한국환경과학회지 Vol.27 No.2
As part of the Four Major Rivers Restoration Project, multifunctional weirs have been constructed in the rivers and operated for river-level management. As the weirs play a role in draining water from tributaries, the aim of this study was to determine the influence of the weirs on the water level of the Nam River, which is one of the Nakdong River’s tributaries. Self-organizing maps (SOMs) and a locally weighted scatterplot smoothing (LOWESS) technique were applied to analyze the patterns and trends of water level and quality of the Nakdong River, considering the operation of the Changnyeong-Haman weir, which is located where the Nam River flows into the Nakdong River. The software program HEC-RAS was used to find the boundary points where the water is well drained. Per the study results at the monitoring points ranging between the junction of the two rivers and 17.5 km upstream toward the Nam River, the multifunctional weir influenced the water level at the Geoyrong and Daesan observation stations on the Nam River and the water quality based on automatic monitoring at the Chilseo station on the Nakdong River was affected strongly by the Nakdong River and partly by the Nam River.
Molecular Breeding of Pepper Varieties (Capsicum annuum) Containing High Levels of Capsinoids
Hyeon-Seok Jeong,Hee-Bum Yang,Siyoung Jang,Yeong Deuk Jo,Byoung-Cheorl Kang 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
Capsinoids, low-pungent compounds, have the same biological effects as capsaicinoids such as anticancer and anti-obesity. A precursor of capsinoids, vanillyl alcohol, is known to be produced by mutations in the putative-aminotransferase (pAMT) gene. In the previous study, ‘SNU11-001’ (Capsicum chinense) containing high levels of capsinoids was identified in germplasm collections of Capsicum. This collection has a unique mutation in the pAMT gene that can cause dysfunction of this gene. In order to develop pepper varieties containing high capsinoids contents, marker-assisted foreground and background selections were performed during backcross breeding. Compared to the conventional backcrossing, marker-assisted backcrossing (MABC) is extremely useful for recovery of a recurrent parent’s genetic background. For foreground selection, plants carrying the pAMT/pamt genotype were selected from a BC1F1 and BC2F1 populations using SCAR markers derived from the unique pAMT mutation of ‘SNU11-001’. To obtain background selection markers, a total of 412 single nucleotide polymorphism (SNP) markers was screened on ‘Shinghong’ parental lines and ‘SNU11-001’ to obtain polymorphic SNP markers. Of the 412 SNP markers, 144 and 204 polymorphic SNP markers evenly distributed in pepper genome were finally selected. BC1F1 and BC2F1 plants carrying the pAMT/pamt genotype were subjected to background selection using the selected marker sets. Multiple genotype analysis was done using a high-throughput genotyping system (EP1TM, Fluidigm®, USA). As a result, one BC1F1 plant 84% similar to the recurrent parent and several BC2F1 plants more than 96% recovery rate of the recurrent parent were selected. Genetic backgrounds of the selected BC2F1 plants were evaluated by the genotype-by-sequencing (GBS) method in order to confirm the background selection results using the SNP marker set. GBS results showed that recovery rate and positions of introgressed segments were well matched between two methods demonstrating MABC can be successfully done with a couple hundred SNP markers.
Molecular breeding of a pepper cultivar (Capsicum annuum) containing high capsinoids
Hyeon-Seok Jeong,Hee-Bum Yang,Siyoung Jang,Yeong Deuk Jo,Byoung-Cheorl Kang 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
Capsinoids, low-pungent compounds, have the same biological effects as capsaicinoids such as anticancer and anti-obesity. A precursor of capsinoids, vanillyl alcohol, is known to be produced by mutations in the p-aminotransferase (p-AMT) gene. In the previous study, SNU11-001 (C. chinense) containing high levels of capsinoids was found in germplasm collections of Seoul National University. We found that this collection has a unique mutation in the p-AMT gene. In order to develop a cultivar containing high capsinoids contents, marker-assisted foreground and background selection were performed in this study. Backcrossing is an effective breeding method for introducing useful traits to an elite cultivar. Compared to conventional backcrossing, marker-assisted backcrossing (MABC) is extremely useful for recovery of a recurrent parent’s genetic background. To obtain background selection markers, a total of 412 single nucleotide polymorphism (SNP) markers was screened to obtain polymorphic SNP markers between ‘Takanotsume (C. annuum)’ and ‘SNU11-001’. Of the 412 SNP markers, 96 polymorphic SNP markers evenly distributed in pepper genome were finally selected. Plants carrying the pAmt/pamt genotype were selected from a BC1F1 population using SCAR markers derived from the unique p-AMT mutation of SNU11-001. BC1F1 plants carrying the pAmt/pamt genotype were subjected to background selection. Multiple genotype analysis was done using Fluidigm platform (BioMark). Once we obtain plants carrying most similar genetic background to recurrent parent, capsinoids contents will be measured and another round of MABC be done to obtain plants containing high levels of capsinoids