State Indicator of Water Quality for Surface Water and Groundwater in Agriculture

Min-Kyeong Kim,Goo-Bok Jung,An-Sung Ro,Seung-Chul Choi,Won-Il Choi,Eun-Jeong Kim,Jong-Eun Lee,Yeo-Uk Yun,Kab-Cheol Kim,Do-Young Ko,Byeong-Ho Kim,Hyeon-Ji Kim,Sang-Jo Park,Seong-Tae Lee,Jae-Young Heo,S 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.5

Indicators of environmental conditions qualitatively and quantitatively describe the state of the environment and natural resources, and the OECD (Organization for Economic Cooperation and Development) has initiated and suggested AEIs (Agri-Environmental Indicators) to assess trends over time of the effects of agriculture on the environment and the effectiveness and efficiency of agricultural and environmental policy measures since 1990’s. This study aims to develop the state indicators of water quality for agricultural water, surface and groundwater, to evaluate the environmental impacts of agricultural activities and policies by qualifying the environmental levels of a nation. Status indicators were calculated according to the agricultural water quality standards of OECD and Korea, and their trends were analyzed over time. Particularly, nitrate(NO₃<SUP>-</SUP>) status indicators of ground water in 2013 were significantly lower than the ones in 2000. Overall, the water quality indicators of surface water in 2013 were higher than the ones in 2012, except for pH and DO. The groundwater quality indicators in 2013 were lower than those of previous years. The optimal management indicators were calculated to assess agricultural surface water and groundwater quality. The findings of this study indicated that the state indicators could play a significant role to establish policies and procedures for managing and conserving water resources. This study also discussed water pollution caused by agricultural and industrial effluents.

State Indicator of Water Quality for Surface Water and Groundwater in Agriculture

Kim, Min-Kyeong,Jung, Goo-Bok,Ro, An-Sung,Choi, Seung-Chul,Choi, Won-Il,Kim, Eun-Jeong,Lee, Jong-Eun,Yun, Yeo-Uk,Kim, Kab-Cheol,Ko, Do-Young,Kim, Byeong-Ho,Kim, Hyeon-Ji,Park, Sang-Jo,Lee, Seong-Tae,H 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.5

Indicators of environmental conditions qualitatively and quantitatively describe the state of the environment and natural resources, and the OECD (Organization for Economic Cooperation and Development) has initiated and suggested AEIs (Agri-Environmental Indicators) to assess trends over time of the effects of agriculture on the environment and the effectiveness and efficiency of agricultural and environmental policy measures since 1990's. This study aims to develop the state indicators of water quality for agricultural water, surface and groundwater, to evaluate the environmental impacts of agricultural activities and policies by qualifying the environmental levels of a nation. Status indicators were calculated according to the agricultural water quality standards of OECD and Korea, and their trends were analyzed over time. Particularly, nitrate ($NO_3{^-}$) status indicators of ground water in 2013 were significantly lower than the ones in 2000. Overall, the water quality indicators of surface water in 2013 were higher than the ones in 2012, except for pH and DO. The groundwater quality indicators in 2013 were lower than those of previous years. The optimal management indicators were calculated to assess agricultural surface water and groundwater quality. The findings of this study indicated that the state indicators could play a significant role to establish policies and procedures for managing and conserving water resources. This study also discussed water pollution caused by agricultural and industrial effluents.

형태학적 세선화 영상의 세그먼트를 이용한 겹쳐진 물체 인식

도경훈 동서대학교 부설 연구소 1996 연구소 논문집 Vol.1 No.-

Mathematical morphology based on set theory is easy to be implemented in parallel and can be applied to various fields in image analysis. Morphological filters can be used effectively for medical and microscopic images to separate overlapping particles. In this paper, separation of overlapping particle image using morphological method is proposed. The extraction of unique marker per every particle and the reconstruction of separated particle from this marker image are done by erosion and conditional dilation, respectively. This approach has the advantages of efficient marker extraction, high separation accuracy, and parallel implementation.

살색정보와 움직임 정보를 이용한 영상분석

도경훈,정의윤,조정복 東西大學校 2000 동서논문집 Vol.6 No.-

Objects-based coding algorithms segment image contents into set of objects or regions according to a given model and estimate their parameters like motion, shape, and color. It is known that object-based coding is more efficient coding method in videophone image sequence. It is difficult to detect moving object only using motion information. Chromaticity distribution of skin color is similar region independent of human race. This paper presents efficient image analysis method using both skin color and motion. The proposed algorithm is composed of facial region detection using skin color and region detection using motion information.

스테레오 정합의 변이 정보를 이용한 영상 분할

도경훈 東西大學校 1996 동서논문집 Vol.2 No.1

본 논문에서는 변이 정보를 이용한 영상 분할 알고리즘을 제안한다. 제안한 영상 분할 방법에서는 스테레오 영상으로부터 영상의 명암도, 경계선 등의 정보와 좌우 영상의 정합으로 얻어지는 변이 정보를 동시에 고려하여 물체의 보다 정확한 분할을 얻는다. 좌우 두 영상은 계층적 구조를 형성하기 위해 웨이브릿 변환에 의해 각 채널별로 분리된 후 스테레오 정합을 통해 변이 정보의 초기치를 얻으며 이로부터 영상은 물체 단위의 분할을 수행하고 그 결과를 이용해서 변이값을 다시 개선하는 과정을 반복한다. 정합이나 분할 과정에서 웨이브릿 변환을 이용한 계층적 구조를 사용함으로써 수행 속도의 개선을 가져왔고 잡음에도 강하다. 실영상과 합성 영상에 대한 실험 결과는 제안한 방법이 기존의 방법에 비해 물체 단위의 분할에 매우 유용하게 사용될 수 있음을 보여준다. In this paper, the algorithm for object segmentation using disparity information is proposed. Left and right stereo images are decomposed into each channel by wavelet filter. And then, disparity value is obtained by hierarcvhical stereo matching. The disparity and segment information is refined iteratively using homogeneous regions segmented by modified blob coloring. The experimental results for various images show that the proposed algorithm has good performance even if the images used in experiments have the unfavorable conditions.

영역정보와 유전 알고리즘을 이용한 스테레오 정합

도경훈,한규필 東西大學校 1999 동서논문집 Vol.5 No.-

In this paper, a new approach of stereo matching using genetic algorithm is presented to improve the depth reconstruction method. And the region information of the image is also used to treat various image sources. Genetic algorithms are efficient search methods based on principles of natural selection and population genetic. Genetic operators, such as crossover and mutation, are modified for matching environment. 2-D chromosome is used for the simple treatment of image signal. Since several constrains, defined as similarity and smoothness, are generally adopted to remove false matching candidates in stereo vision, the fitness function which identifies the fittest individual is formed by the constrains. In addition, the informed dispaeity generation and initial population based on intensity difference are applied to reduce the searching space of genetic operations. Experimental results show that the computation load is less than conventional matching methods with relaxation and relatively stable outputs are acquired.

p-Anisaldehyde가 조골세포 분화에 미치는 영향

김경민 ․ 이도원 ․ 김현준 ․ 김아랑 ․ 장원구 대구대학교 산업기술연구소 2018 産業技術硏究 Vol.29 No.2

p-Anisaldehyde is a natural fragrance extracted from Pimpinella anisum L., and used as a preservative. This study examined the effect of p-anisaldehyde on osteoblast differentiation. First, cytotoxicity tests were carried out after examining the concentrations that did not show toxicity to the cells. The expression of osteoblast differentiation marker gene was confirmed by RT-PCR and was not effective in the treatment with p-anisaldehyde alone. However, p-anisaldehyde decreased the expression levels of inhibitor of differentiation-1 (Id1), distalless related homeobox (Dlx5), and runt-related transcription factor 2 (Runx2), which are osteogenic differentiation marker genes, which are increased in osteogenic condition. alkaline phosphatase (ALP) activity was also confirmed by ALP staining that p-anisaldehyde reduced ALP activity. These results show that p-anisaldehyde is effective in reducing osteoblast differentiation.

캡슐내시경과 단일풍선 소장내시경으로 진단된 공장의 간질종양 1예

송도경,심기남,태정현,김경진,송명은,송하응,윤혜원,정가영,정정화 이화여자대학교 의과학연구소 2012 EMJ (Ewha medical journal) Vol.35 No.2

Gastrointestinal stromal tumors (GISTs) are common mesenchymal tumors that arise in the wall of the gastrointestinal tract. We report a case of obscure gastrointestinal bleeding due to a GIST of the jejunum successfully documented by videocapsule endoscopy (VCE) and single-balloon enteroscopy (SBE). A 36-year-old man with hematochezia was referred for further evaluation of no evidence of bleeding focus on esophagogastroduodenoscopy and colonoscopy. A VCE showed a suspicious ulcerative hyperemic mass that located in about 1 hour apart from duodenal second portion. SBE revealed a nonbleeding 4×2 cm mass with an ulcer at the proximal jejunum. The patient underwent laparoscopic resection without complication. Histological examination revealed a well circumscribed, dumbbell-shaped firm mass comprised of spindle cells. Immunohistochemical staining for CD 117 was diffusely positive, whereas staining for S-100, CD 34 and MIB-1 was all negative. It was confirmed to be a low-grade GIST at the proximal jejunum.

페나진 유도체들의 抗菌性에 관한 분자궤도론적 연구

郭庚度,朴柄珏,金鎬順,徐萬哲,金鐘大 嶺南大學校附設 基礎科學硏究所 1988 基礎科學硏究 Vol.8 No.-

The electronic states of the antimicrobial phenzine and its derivatives were examined by Extended H?uckel Method. It was found that the sum of nucleophilic reactivity index for trans 1,2, and 4 positions, ?? in a molecule was found to be related antimicrobial activity. The index, ??, should be applied to biological activity as well as antimicrobial activity.

복숭아나무 硬枝揷木時 揷木 用土와 基間이 發根과 圃場活着에 미치는 영향

林敬鎬,林炯基,金道翊,金月洙,鄭淳柱 全南大學校 農業科學技術硏究所 1998 農業科學技術硏究 Vol.33 No.-

복숭아나무 경지삽목 번식에 있어서 삽목 용토와 기간 및 삽수내 저장 양분 함량 변화 등이 발근과 포장 활착에 미치는 영향을 구명하였다. 삽목 용토는 vermiculite가 peat pellets 岩線보다 발근율, 발근수와 발근장 및 포장 활착율 등에 있어서 가장 좋은 효과를 나타냈다. 삽목 기간은 35일에서 55일로 기간이 길어질수록 발근율이 높고 뿌리 발달이 좋아졌으나, 포장 활착율은 삽수내전탄수화물과 전당 등 전당 등 저장양분 소비가 많아 삽목 기간이 짧은 35일에서 높았다. 특히 이들 양분 중에서 sucrose의 소비가 가장 많았다. 포장에서 활착후 수고, 간경 등 생육은 모든 처리에서 수고 136㎝, 간경 22.9㎜ 이상으로 삽목 당년에 우량묘가 생산되었다. This experiment was studied to examine the effect of cutting media and duration on rooting and transplanting using hardwood cutting of 'Sunaga Wase' peach to establish mass production system of rooted cutting. In cutting media, vermiculite showed higher root growth than peat pellets and rock-wool on rooting, root number, root length, and survival in field. The longer cutting duration was from 35 to 55 days, the better rooting and root growth obtained. But the transplanting was the best at 35 days, because it held enough storage nutrient including carbohydrate and sugar which were consumed in cutting stem tissue of 'Sunaga Wase' peach during hardwood cutting. Especially, among these nutrients, sucrose showed the highest consumption. After transplanting of rooted cutting to field, tree height and diameter of ' Sunaga Wase' peach was 136㎝ and 22.9㎜, respectively. therefore it could product the best quality of rooted cutting.