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RISS 인기검색어
- 검색키워드
- 저자 : ( Shimpei Saito ) (검색결과 3 건)
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Study on Visualization Method of Rice Yield and Quality Data
( Shimpei Saito ),( Hideo Hasegawa ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
One of the problems of Japanese agriculture has been decrease in the number of skilled farmers in order to retirement and aging in recent years. Therefore, it is serious problem to inherit farming techniques to the younger successors. The purpose of this study is to visualize growth situation by using UAV and GIS, and provide young farmers comprehensive data as a technical guidance. In this study, we visualized rice yield and quality of agricultural corporation from 2012 to 2017 in Central Part of Niigata Prefecture, Japan and clarified the growth situation of the paddy field at the young panicle formation stage. We extracted paddy fields to be improved from the stand point of cultivation skill based on data visualization. We overlaid field data on the aerial photograph of the corporation and extracted technological characteristics of rice paddy. In this research, we collected and visualized field information. By expressing the yield of the union fields with blue to red gradation, it was possible to intuitively confirm the state and progress of the fields. It was also easy to compare with adjacent fields, suggesting that not only information accumulation but also their work motivation was improved. The brown rice protein content was positively correlated with the yield, and it is thought that the rise in the protein content by the ground nitrogen influenced it. Sensing by UAV can visualize the variation of NDVI in the panicle formation stage, and the members can intuitively understand the variation in growth. By applying this knowledge to the fertilization work, it is thought that it will lead to added value by stabilizing the quality. In addition, we confirmed the decrease in growth due to field improvement, soil analysis and improvement in the field is required.
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Hiroki Tanaka,Shimpei Matsusaki,Youichirou Baba,Yoshiaki Isono,Tomohiro Sase,Hiroshi Okano,Tomonori Saito,Katsumi Mukai,Tetsuya Murata,Hiroki Taoka 대한소화기내시경학회 2018 Clinical Endoscopy Vol.51 No.2
Background/Aims: It is sometimes difficult to distinguish between malignant and benign biliary strictures using imaging studiesalone, and pathological diagnosis is necessary. The aim of this study was to determine the usefulness of endoscopic transpapillary tissuesampling and factors predictive of diagnostic accuracy. Methods: From April 2008 to December 2014, 136 patients underwent endoscopic transpapillary tissue sampling for malignantbiliary strictures. The cytological and histological findings were reported as negative, suspicious, or positive. Suspicious and positivefindings were defined as pathologically positive. Results: The sensitivity was 65.0% for forceps biopsy, 49.5% for brush cytology, 46.2% for bile aspiration cytology, and 21.9% forendoscopic nasobiliary drainage cytology. The combination of these procedures improved the sensitivity (72.8%). Endoscopictranspapillary tissue sampling was more sensitive for lesions of biliary origin (91.4%) than for extrabiliary lesions (66.3%). In surgicalcases, the sensitivity for tumors with an infiltrative growth pattern (53.3%) was significantly lower than for a tumor with an expandingor intermediate growth pattern (87.5%). Conclusions: Combining procedures can improve diagnostic accuracy. It may be possible to predict the sensitivity of endoscopictranspapillary tissue sampling by evaluating the etiology and tumor growth pattern using preoperative imaging studies.
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