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第八届东亚资源再生技术国际会议

作者： n.kotake Y.Miyano Y.Kanda T.Ishikawa T.Itabashi Department of Chemistry and Chemical Engineering Yamagata University 4-3-16 Jonan Yonezawa-shi Yamagata992-8510 Japan Department of Chemistry and Chemical Engineering Yamagata University 4-3-16 Jonan Yonezawa-shi Yamagata992-8510 Japan Department of Chemistry and Chemical Engineering Yamagata University 4-3-16 Jonan Yonezawa-shi Yamagata992-8510 Japan Mistui Mining Co. LTD. 1 Koh-machi Tochigi-shi Tochigi 328-8503 Japan Mistui Mining Co. LTD. 1 Koh-machi Tochigi-shi Tochigi 328-8503 Japan

＜正＞A demand for the aggregates is increasing in the field of civil industry and architectural industry and so on. In these industries, the particle size and shape of aggregates are important factors and especially spherical or rounded particles are desired. In Japan, crushed stone is widely used as the aggregate material for the pavement or the construction. In this study based on the frictional action of material each other, an autogenous grinding of crushed stone was performed in order to eliminate squarish particles and get rounded ones for better aggregate materials. The experimental apparatus is a stirred mill with 4 impellers and the mill is made of stainless steel. The feed size and the feed mass of crushed stone were constant respectively. The particle shape was measured in the particle size range of 20 mm - 2.36 mm, and was evaluated by the shape index（= diameter of circumcircle / thickness） and the circularity（= perimeter of circle of equal projected area / perimeter of particle）. As a result, a decrease in the shape index and an increase in the circularity of crushed stone were observed with increasing grinding time. Then, the shape index and the circularity had the limit value for the long time grinding. The tendencies in these variations were not changed by the measuring size. The limit values of the shape index and the circularity increased with decreasing measuring size respectively.

关键词： Autogenous grinding Stirred mill Crushed stone Particle shape

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间质性肾炎葡萄膜炎综合征的临床特征

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世界核心医学期刊文摘(眼科学分册) 2006年第2期 17-17页

作者： Goda C kotake S Ichiishi A. 桑延智 Department of Ophthalmolog y and Visual Sciences Hokkaido University Graduate School of Medicine Kita- 15 Nishi- 7 Kita-ku Sapporo 060- 8638 Japan Dr.

PURPOSE: To analyze clinical features of the tubulointerstitial nephritis and uveitis (TInU) syndrome in Japan, especially exacerbations or recurrences of uveitis. DESIGn: Retrospective observational study. METHODS: We reviewed the clinical features in 12 patients with TInU syndrome diagnosed by renal biopsy, who were evaluated and treated at the Department of Ophthalmology, Hokkaido University Hospital. Visual acuity was measured using decimal visual acuity. RESULTS: Patient age ranged from 10 to 33 years (mean 21 years), and females accounted for 83% of the cases. Both eyes were affected in 11 patients (92% ). All 12 patients initially experienced ocular symptoms, with hyperemia being the chief complaint. We diagnosed patients as having uveitis and conducted blood tests and urinalysis. Urinalysis did show characteristic findings, most notably glucosuria, increased β 2 microglobulin that were normal levels, and increased n-acetylglucosaminidose levels in a high percentage of patients. Recurrent or exacerbating uveitis was seen in six patients (50% ). In exacerbated or recurrent uveitis, in flammation was more severe (nterior eye segment). The ocular inflammation generally responded well to treatment with oral corticosteroids, and the number of recurrences was lower at corticosteroid doses of nisolone 40 mg. COnCLUSIOnS: Ophthalmologists play an important role in the initial discovery of patients with TInU syndrome. Because inflammation was more severe in exacerbated or recurrent uveitis, in instances where uveitis is refractory to local therapy, oral corticosteroids should be considered as early as possible.

关键词：葡萄膜炎色素膜炎葡萄膜疾病间质性肾炎临床特征综合征综合病症

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