{"title":"The effects of a 52-hour workweek policy on meat consumption patterns in Korea","authors":"Jaesung Cho","doi":"10.7744/KJOAS.20210003","DOIUrl":"https://doi.org/10.7744/KJOAS.20210003","url":null,"abstract":"","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"11 1","pages":"83-93"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81851933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Yoo, J. Lim, Gi-Young Kim, M. Kim, Jungsook Kang, Y. Seo, Lee Ah Yeong, B. Cho, Hong Soon Jung, Mo, Changyeun
{"title":"Development of weight prediction 2D image technology using the surface shape characteristics of strawberry cultivars","authors":"H. Yoo, J. Lim, Gi-Young Kim, M. Kim, Jungsook Kang, Y. Seo, Lee Ah Yeong, B. Cho, Hong Soon Jung, Mo, Changyeun","doi":"10.7744/KJOAS.20200062","DOIUrl":"https://doi.org/10.7744/KJOAS.20200062","url":null,"abstract":"","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"11 1","pages":"753-767"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80411043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chohyunmin, S. Wickramasuriya, S. P. Macelline, Kim Yubin, Hong Jun Seon, Yi Young-Joo, Heo, Jung Min
{"title":"Fiber fractions and the corresponding exogenous enzyme can improve the growth performance of weaning piglets under poor sanitary conditions","authors":"Chohyunmin, S. Wickramasuriya, S. P. Macelline, Kim Yubin, Hong Jun Seon, Yi Young-Joo, Heo, Jung Min","doi":"10.7744/KJOAS.20200043","DOIUrl":"https://doi.org/10.7744/KJOAS.20200043","url":null,"abstract":"","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"1 1","pages":"545-552"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79296647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Taiwanese consumers’ preference for dried persimmons related to the Korean wave","authors":"Jaehong Park, Hong, Seungjee","doi":"10.7744/KJOAS.20200044","DOIUrl":"https://doi.org/10.7744/KJOAS.20200044","url":null,"abstract":"","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"10 1","pages":"553-565"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86545181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of brewer’s yeast (Saccharmyces cerevisiae) supplementation on growth performance, nutrient digestibility, and fecal score of growing pigs","authors":"Z. Ding, Kim In-ho","doi":"10.7744/KJOAS.20200015","DOIUrl":"https://doi.org/10.7744/KJOAS.20200015","url":null,"abstract":"","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"43 1","pages":"395-402"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77090385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Youngho Seo, Lee Ah Yeong, Balgeum Kim, Jongguk Lim
{"title":"Discriminant analysis of grain flours for rice paper using fluorescence hyperspectral imaging system and chemometric methods","authors":"Youngho Seo, Lee Ah Yeong, Balgeum Kim, Jongguk Lim","doi":"10.7744/KJOAS.20200051","DOIUrl":"https://doi.org/10.7744/KJOAS.20200051","url":null,"abstract":"","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"17 1","pages":"633-644"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78324364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seung-Min Baek, Wan-Soo Kim, Kim Yong Joo, Chung Sun-Ok, Kyu-Chul Nam, Lee Daehyun
In this study, a real-time crop recognition system was developed for an unmanned farm machine for upland farming. The crop recognition system was developed based on a stereo camera, and an image processing framework was proposed that consists of disparity matching, localization of crop area, and estimation of crop height with coordinate transformations. The performance was evaluated by attaching the crop recognition system to a tractor for five representative crops (cabbage, potato, sesame, radish, and soybean). The test condition was set at 3 levels of distances to the crop (100, 150, and 200 cm) and 5 levels of camera height (42, 44, 46, 48, and 50 cm). The mean relative error (MRE) was used to compare the height between the measured and estimated results. As a result, the MRE of Chinese cabbage was the lowest at 1.70%, and the MRE of soybean was the highest at 4.97%. It is considered that the MRE of the crop which has more similar distribution lower. the results showed that all crop height was estimated with less than 5% MRE. The developed crop recognition system can be applied to various agricultural machinery which enhances the accuracy of crop detection and its performance in various illumination conditions.
{"title":"Development of a real-time crop recognition system using a stereo camera","authors":"Seung-Min Baek, Wan-Soo Kim, Kim Yong Joo, Chung Sun-Ok, Kyu-Chul Nam, Lee Daehyun","doi":"10.7744/KJOAS.20200022","DOIUrl":"https://doi.org/10.7744/KJOAS.20200022","url":null,"abstract":"In this study, a real-time crop recognition system was developed for an unmanned farm machine for upland farming. The crop recognition system was developed based on a stereo camera, and an image processing framework was proposed that consists of disparity matching, localization of crop area, and estimation of crop height with coordinate transformations. The performance was evaluated by attaching the crop recognition system to a tractor for five representative crops (cabbage, potato, sesame, radish, and soybean). The test condition was set at 3 levels of distances to the crop (100, 150, and 200 cm) and 5 levels of camera height (42, 44, 46, 48, and 50 cm). The mean relative error (MRE) was used to compare the height between the measured and estimated results. As a result, the MRE of Chinese cabbage was the lowest at 1.70%, and the MRE of soybean was the highest at 4.97%. It is considered that the MRE of the crop which has more similar distribution lower. the results showed that all crop height was estimated with less than 5% MRE. The developed crop recognition system can be applied to various agricultural machinery which enhances the accuracy of crop detection and its performance in various illumination conditions.","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"136 1","pages":"315-326"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76401580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyun-Chul An, Kang Hansol, Nam Won Ho, Kwang-Ya Lee
This study proposed a simple estimation method for irrigation return flow from paddy fields using the water balance model. The merit of this method is applicability to other paddy fields irrigated from agricultural reservoirs due to the simplicity compared with the previous monitoring based estimation method. It was assumed that the unused amount of irrigation water was the return flow which included the quick and delayed return flows. The amount of irrigation supply from a reservoir was estimated from the reservoir water balance with the storage rate and runoff model. It was also assumed that the infiltration was the main source of the delayed return flow and that the other delayed return flow was neglected. In this study, the amount of reservoir inflow and water demand from paddy field are calculated on a daily basis, and irrigation supply was calculated on 10-day basis, taking into account the uncertainty of the model and the reliability of the data. The regression rate was calculated on a yearly basis, and yearly data was computed by accumulating daily and 10-day data, considering that the recirculating water circulation cycle was relatively long. The proposed method was applied to the paddy blocks of the Jamhong and Seosan agricultural reservoirs and the results were acceptable.
{"title":"Estimation of irrigation return flow from paddy fields based on the reservoir storage rate","authors":"Hyun-Chul An, Kang Hansol, Nam Won Ho, Kwang-Ya Lee","doi":"10.7744/KJOAS.20190083","DOIUrl":"https://doi.org/10.7744/KJOAS.20190083","url":null,"abstract":"This study proposed a simple estimation method for irrigation return flow from paddy fields using the water balance model. The merit of this method is applicability to other paddy fields irrigated from agricultural reservoirs due to the simplicity compared with the previous monitoring based estimation method. It was assumed that the unused amount of irrigation water was the return flow which included the quick and delayed return flows. The amount of irrigation supply from a reservoir was estimated from the reservoir water balance with the storage rate and runoff model. It was also assumed that the infiltration was the main source of the delayed return flow and that the other delayed return flow was neglected. In this study, the amount of reservoir inflow and water demand from paddy field are calculated on a daily basis, and irrigation supply was calculated on 10-day basis, taking into account the uncertainty of the model and the reliability of the data. The regression rate was calculated on a yearly basis, and yearly data was computed by accumulating daily and 10-day data, considering that the recirculating water circulation cycle was relatively long. The proposed method was applied to the paddy blocks of the Jamhong and Seosan agricultural reservoirs and the results were acceptable.","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"47 1","pages":"19-28"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79728794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seungsoo Lee, H. An, Yeonsu Kim, Hur, Young Teck, Lee, Daeeop
{"title":"Data complement algorithm of a complex sewerage pipe system for urban inundation modeling","authors":"Seungsoo Lee, H. An, Yeonsu Kim, Hur, Young Teck, Lee, Daeeop","doi":"10.7744/KJOAS.20200040","DOIUrl":"https://doi.org/10.7744/KJOAS.20200040","url":null,"abstract":"","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"35 10 1","pages":"509-517"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78037272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dae-Gyu Kim, Hyun A. Jang, D. Lim, Y. Hur, Kyo-Sang Lee, Jiyoung Min, Sang-Keun Oh
{"title":"Development of a SNP marker set related to crown gall disease in grapevines by a genome wide association study","authors":"Dae-Gyu Kim, Hyun A. Jang, D. Lim, Y. Hur, Kyo-Sang Lee, Jiyoung Min, Sang-Keun Oh","doi":"10.7744/KJOAS.20200057","DOIUrl":"https://doi.org/10.7744/KJOAS.20200057","url":null,"abstract":"","PeriodicalId":17916,"journal":{"name":"Korean Journal of Agricultural Science","volume":"3 1","pages":"693-705"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78394419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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