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Study on Intermittent Irrigation for Paddy Rice: I. Water Use Efficiency

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Pedosphere 2001年第1期11卷 49-56页

作者： LUJUN t.hirasawa DepartmentofNaturalResources ZhejiangUniversityHangzhou310029（China） FaccultyofAgriculture TokyoUniversitoyofAgricultureandTechnologyTokyo183－8509（Japan）

A field experiment was conducted in a well-puddled paddy field developed on the tama River alluvial soil in the Farm of tokyo University of Agriculture and technology, Japan, to study the effect of intermittent irrigation on water use efficiency of paddy rice. Four treatments were arranged with 2 replicates: continuous flooding irrigation treatments (CFI), and three intermittent irrigation treatments Ⅱ-0, Ⅱ-1 and Ⅱ-2, in which plants were re-irrigated when the soil water potential fell below 0, -10, and -20 kPa, respectively, at soil depth of about 5 cm. Water consumption was lower in treatment Ⅱ-0 than in treatment CFI because the percolation rate was reduced by the reduction in the hydraulic head of ponded water. Intermittent irrigation led to soil repeated shrinking and swelling in Ⅱ-1 and Ⅱ-2 plots and, therefore, soil cracks developed rapidly. Since they became the major routes of water percolation, the soil cracks increased water consumption in treatments Ⅱ-1 and Ⅱ-2. there were no significant differences in dry matter production and grain yields between treatment Ⅱ-0 and treatment CFI, but the dry matter production and grain yields in treatments Ⅱ-0 and CFI were significantly higher than those in treatments Ⅱ-1 and Ⅱ-2. therefore, the water use efficiency in the treatments was in the order of Ⅱ-0 > CFI > Ⅱ- 2 > Ⅱ- 1.

关键词：间歇灌稻谷土壤降水水资源利用效率

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Effect of Directional Solidification Processes on Diffusion Length Distribution of High Quality Multicrystalline Silicon Ingots

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Effect of Directional Solidification Processes on Diffusion ...

更换碘对比剂预防复发性过敏反应:系统回顾和荟萃分析

第十五届国际光伏科学与工程大会

作者： t.Eguchi t.hirasawa I.Yamaga M.Dhamrin t.Saitoh K.Kamisako Dai-ichi Dentsu Co. 1-54-1 Shimoishihara Chofu Tokyo 182-0034 Japan Dai-ichi Dentsu Co. 1-54-1 Shimoishihara Chofu Tokyo 182-0034 Japan Dai-ichi Dentsu Co. 1-54-1 Shimoishihara Chofu Tokyo 182-0034 Japan tokyo Univ.of Agr.＆ tech. 2-24-16 Naka-cho Koganei Tokyo 184-8588 Japan tokyo Univ.of Agr.＆ tech. 2-24-16 Naka-cho Koganei Tokyo 184-8588 Japan tokyo Univ.of Agr.＆ tech. 2-24-16 Naka-cho Koganei Tokyo 184-8588 Japan

＜正＞ Effect of directional solidification conditions on diffusion length distribution of multicrystalline silicon ingots is investigated. Crucible-lowering and temperature-lowering impact on crystal quality during solidification is examined as two different possible growth methods. An average diffusion length of around 400μm is realized in both ingot growth methods with better diffusion length distribution for the crucible lowering method.

关键词： Multicrystalline Silicon Solidification SPV Resistivity

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国际医学放射学杂志 2023年第1期46卷 104-104页

作者： H.Umakoshi t.Nihashi A.takada N.hirasawa S.Ishihara Y.takehara 胡金玥

摘要对于曾发生过敏反应的病人,更换碘对比剂(ICM)可能会降低ICM诱发过敏反应的风险。目的系统性回顾更换ICM对于预防复发性过敏反应的有效性差异。资料与方法

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长寿

英语知识 2003年第10期 13-14页

作者：李井岗 hirasawa Markstein 西安理工大学外语系

In the Caucasus region of the Soviet Union,nearly 50 out of every 100,000 people live to celebratetheir 100th birthday,and many don’t stop at 100!Bycomparison,in America only 3 people in 100,000reach 100.But these Soviet old people aren’t alone.the Pakistani Hunzas,who live high in the HimalayaMountains,and the Vilcabamans of the AndesMountains in Ecuador seem to share the secret oflong life too.

关键词：《长寿》英汉双语练习英语阅读英语知识

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Meta-analysis of lymph node metastasis in Siewert type Ⅰ and Ⅱ t1 adenocarcinomas

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World Journal of Meta-Analysis 2016年第6期4卷 118-123页

作者： Hiroki Osumi Junko Fujisaki Masami Omae tomoki Shimizu toshiyuki Yoshio Akiyoshi Ishiyama toshiaki hirasawa tomohiro tsuchida Yorimasa Yamamoto Hiroshi Kawachi Noriko Yamamoto Masahiro Igarashi Departments of Gastroenterology and Pathology Cancer Institute Hospital Japanese Foundation for Cancer Research Departments of Pathology Cancer Institute Hospital Japanese Foundation for Cancer Research

AIM to evaluate the incidence of lymph node metastasis(LNM) and its risk factors in patients with Siewert type Ⅰ and type Ⅱ pt1 adenocarcinomas.MEtHODS We enrolled 85 patients [69 men, 16 women; median age(range), 67(38-84) years] who had undergone esophagectomy or proximal gastrectomy for Siewert type Ⅰ and type Ⅱ pt1 adenocarcinomas. Predictive risk factors of LNM included age, sex, location of the tumor center, confirmed Barrett's esophageal adenocarcinoma, tumor size, macroscopic tumor type, pathology, invasion depth, presence of ulceration, and lymphovascular invasion. Multivariate logistic regression analysis was used to identify factors predicting LNM. We also evaluated the frequencies of LNM for Siewert type Ⅰ and type Ⅱ pt1 adenocarcinomas in meta-data analysis.RESULtS LNMs were found in 11 out of 85 patients(12.9%, 95%CI: 5.8-20.0). Only 1 of the 15 patients(6.6%, 95%CI: 0.0-19.2) who had a final diagnosis of pt1a adenocarcinoma had a positive LNM, whereas 10 ofthe 70 patients(14.2%, 95%CI: 6.0-22.4) with a final diagnosis of pt1b adenocarcinoma had positive LNM. Furthermore, only one of the 30 patients(3.3%, 95%CI: 0.0-9.7) with a tumor invasion depth within 500 μm from muscularis mucosae had positive LNM. Poor differentiation and lymphovascular invasion were independently associated with a risk of LNM. In meta-data analysis, 12 of the 355 patients(3.3%, 95%CI: 1.5-5.2) who had a final diagnosis of pt1a adenocarcinoma had a positive LNM, whereas 91 of the 438 patients(20.7%, 95%CI: 16.9-24.5) with a final diagnosis of pt1b adenocarcinoma had positive LNM. CONCLUSION We consider endoscopic submucosal dissection(ESD) is suitable for patients with Siewert type Ⅰ and type Ⅱ t1 a adenocarcinomas. For patients with t1b adenocarcinoma, especially invasion depth is within 500 μm from muscularis mucosae with no other risk factor for LNM, diagnostic ESD could be a treatment option according to the overall status of patients and the presence of comorbidities.

关键词： Siewert type Ⅰ and type Ⅱ adenocarcinomas Lymph node metastasis