13 0 0 0 OA 宮崎県での口蹄疫発生に及ぼす黄砂および風による蔓延の影響
- 著者
- 真木 太一 八田 珠郎 杜 明遠 脇水 健次
- 出版者
- 公益財団法人 日本学術協力財団
- 雑誌
- 学術の動向 (ISSN:13423363)
- 巻号頁・発行日
- vol.16, no.2, pp.2_65-2_70, 2011-02-01 (Released:2011-06-18)
- 参考文献数
- 8
4 0 0 0 OA チョコレートにおける結晶成長とファットブルーム(<特集>食品科学と結晶成長)
- 著者
- 金田 泰佳 八田 珠郎
- 出版者
- 日本結晶成長学会
- 雑誌
- 日本結晶成長学会誌 (ISSN:03856275)
- 巻号頁・発行日
- vol.41, no.4, pp.194-204, 2015 (Released:2017-05-31)
Chocolate is a suspension in which solid particles of sugar and cocoa powder are dispersed at high concentrations in a continuous phase of cocoa butter. Many of chocolate's physical properties are thus determined by the behavior of cocoa butter crystal, which plays numerous essential roles in providing chocolate with a pleasing appearance, snap at room temperature, and smooth melting in the mouth. On the other hand, a fat bloom appears on chocolate when the unfavorable properties of cocoa butter crystal are manifested. Fat bloom is a condition in which the fine texture of fat crystal is lost for some reason and the chocolate becomes non-uniform. Chocolate fat bloom is classified into various types by the form of chocolate it is found on and the storage conditions that cause it. However, the relationships between the causes and results of bloom are diverse, and the classification of chocolate fat bloom is complicated. In this article, we classify chocolate fat bloom according to bloom morphology. Organizing the morphological states can help us to understand the developing mechanism, which gives a complicated flow chart showing the dependence on the type of chocolate item and its storage conditions.
4 0 0 0 OA 黄砂と口蹄疫・鳥インフルエンザ輸送との関連性
3 0 0 0 OA DNA鑑定による黄砂の付着病原菌の同定
中国敦煌・奈曼の開墾農地のダスト量・濃度には人間活動が大きく影響する。リアルタイムPCR解析DNA鑑定法により沖縄・福岡・つくば採集黄砂から口蹄疫ウイルス付着の可能性を確認した。黄砂の構成鉱物は塩類と二次生成物が主で硫酸塩の含水鉱物があり、最表面には人為起源の窒素が偏在し、石膏付着から中性のpHと高湿度の輸送気象環境が推測できた。2010年3月の宮崎県内口蹄疫の初発生は、中国甘?省の豚口蹄疫の付着黄砂が伝播源と推測された。
- 著者
- 山本 和貴 古屋 愛珠 松木 順子 八田 珠郎 中浦 嘉子 井ノ内 直良
- 出版者
- 一般社団法人 日本応用糖質科学会
- 雑誌
- 応用糖質科学:日本応用糖質科学会誌 (ISSN:21856427)
- 巻号頁・発行日
- vol.4, no.3, pp.B34, 2014-08-20 (Released:2018-01-25)
2 0 0 0 OA 薩摩硫黄島硫黄岳に産する高温火山昇華物
- 著者
- 新田 恵理子 木股 三善 星野 美保子 越後 拓也 濱崎 聡志 篠原 宏志 西田 憲正 八田 珠郎 清水 雅浩
- 出版者
- 一般社団法人 日本鉱物科学会
- 雑誌
- 岩石鉱物科学 (ISSN:1345630X)
- 巻号頁・発行日
- vol.35, no.6, pp.270-281, 2006 (Released:2007-03-15)
- 参考文献数
- 43
- 被引用文献数
- 1
High temperature volcanic sublimates including so-called “molybdenum blue” sampled around the high-temperature fumaroles at Iwodake volcano, Satsuma-Iwojima, Kyushu, Southwestern Japan, were characterized by X-ray powder diffraction, X-ray micro-diffraction, Raman micro-scattering, electron microprobe and X-ray photoelectron spectroscopic analyses. The identified minerals are molybdenite, sphalerite, tugarinovite, molybdite, hematite, halite, sylvite, anglesite, wulfenite, quartz, tridymite, cristbalite and potassium alum. Occurrences of both tugarinovite and molybdite are observed in Kudriavy volcano, too, and the coexistence of their minerals is characteristic of high-temperature volcanic sublimates. The molybdenite and sphalerite from Iwodake are exceedingly rich in Re (up to 0.77 wt%) and In (up to 1.69 wt%), respectively, distinguished from those of a different origin by chemical composition. The molybdenite consists of both of 3R and 2H1 polytypes. Sublimates from Iwodake and Kudriavy volcanoes are similar in mineralogy. Although the difference in the host rock arises between the Iwodake (rhyolite) and the Kudriavy (basaltic andesite) volcanoes, their volcanic gases resemble each other in F and Cl contents. This resemblance might cause the similarity in sublimate mineralogy between these volcanoes.
2 0 0 0 宮崎県での口蹄疫発生に及ぼす黄砂および風による蔓延の影響
- 著者
- 真木 太一 八田 珠郎 杜 明遠 脇水 健次
- 出版者
- Japan Science Support Foundation
- 雑誌
- 学術の動向 (ISSN:13423363)
- 巻号頁・発行日
- vol.16, no.2, pp.65-70, 2011
1 0 0 0 OA 土壌の溶融生成物の鉱物学的および化学的特性
- 著者
- 万福 裕造 八田 珠郎 矢板 毅 佐藤 努
- 出版者
- 一般社団法人 日本粘土学会
- 雑誌
- 粘土科学 (ISSN:04706455)
- 巻号頁・発行日
- vol.56, no.2-3, pp.28-40, 2017-12-25 (Released:2018-01-15)
- 参考文献数
- 26
In this study, we examined the mineralogical and chemical properties of the 11 soils weathered from different rock-types and Kanto loam, and their properties after heat treatment at 1550°C.The constituent mineral of the weathered soils does not necessarily reflect the mineral and chemical compositions of the host rock. The sum of SiO2, Al2O3, Fe2O3 in the weathered soil shares a considerable ratio as weathered materials while it's not necessarily reflect the chemical composition of the base material rock.With heat treatment of the 11 weathered soils and Kanto loam at 1550°C, the considerable weight loss and phase change was observed. The minerals produced after heating at 1550°C were mullite, cristobalite, hematite. While cristobalite is formed from all soils, mullite and hematite were existed after limited soil treatment. From this chemical weathering index (WI), the formation of mullite from the soil where the weathering is considerably advanced was clarified.The correlation between the formation of hematite and WI is not clear, but the dependence of the content of Fe2O3 is considered. After the heat treatment, significant weight loss was observed in the soils containing large amount of Fe2O3, weathered from andesite, basalt, gabbros, serpentinite, limestone as base materials and Kanto loam. It is thought that it depends on the difference of the content of clay minerals, the dehydration due to the change of clay minerals etc., and the reduction of iron (III) oxide. The basic data obtained in this study are considered to be important for future direction toward the heat treatment and volume reduction of the actual radioactive Cs-contaminated soil in Fukushima Prefecture.
- 著者
- 八田 珠郎
- 出版者
- 一般社団法人 日本粘土学会
- 雑誌
- 粘土科学
- 巻号頁・発行日
- vol.53, no.1, 2014
1 0 0 0 OA 湿式分級洗浄および天然鉱物等による農地土壌等に含まれる放射性セシウム除去方法の実践的検討
- 著者
- 伊藤 健一 宮原 英隆 氏家 亨 武島 俊達 横山 信吾 中田 弘太郎 永野 哲志 佐藤 努 八田 珠郎 山田 裕久
- 出版者
- 一般社団法人 日本原子力学会
- 雑誌
- 日本原子力学会和文論文誌 (ISSN:13472879)
- 巻号頁・発行日
- vol.11, no.4, pp.255-271, 2012 (Released:2012-11-15)
- 参考文献数
- 27
- 被引用文献数
- 8 11
In the radiation dosimetry of radiocesium in Iitate, Fukushima, the level of radiocesium around the environment did not exceed the criteria in liquid phases such as puddle water, but was distributed in solid phases such as some soil types and organic matter. On the other hand, retting of the cut bamboo grass and hemlock fir in water allowed the release of radiocesium, about 230 Bq/kg exceeding the criteria for a bathing area. The flow-thru test using zeolite showed the removal of radiocesium from the liquid phase. The wet classification test was performed for 3 types of radiocesium-contaminated soil. According to the results of wet classification, radiocesium was detected and its level exceeded the cropping restriction level in almost all classified particle fractions. The decontamination effect of wet classification on radiocesium contamination was smaller than that on heavy metal contamination. Specifically, the wet classification could not induce volume reduction. Accordingly, preprocessing and intermediate treatments such as dispersion or attrition by vibration or mixing in the wet classification process were devised and examined as improved processing techniques. As a result, the effectual volume reduction of the radiocesium-contaminated soil was confirmed by adding an intermediate process such as the surface attrition in the vibrator.
- 著者
- 横山 信吾 伊藤 健一 八田 珠郎 山田 裕久
- 出版者
- 公益社団法人地盤工学会
- 雑誌
- 地盤工学会誌 (ISSN:18827276)
- 巻号頁・発行日
- vol.61, no.11, pp.26-29, 2013-12-01