著者

小野 英哲 河田 秋澄 宮木 宗和 川村 清志 小西 敏正 三上 貴正 橋田 浩 吉岡 丹

出版者

一般社団法人日本建築学会

雑誌

日本建築学会論文報告集 (ISSN:03871185)

巻号頁・発行日

no.346, pp.1-8, 1984-12-30

被引用文献数

33

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This paper presents the process of the development of the new slipperiness tester and the performance of it. Based on the concept of a new slipperiness tester reported in part 2, a tester (DRAG TYPE) of which details remained changeable and could be adjusted by the result of the later experiments was first developed. The result of measurement of many surfaces, namely, the pulling load-time curves were analysed to find the physical value which can indicate the degree of slipperiness, and coefficient of slip resistance (C.S.R.) was finally found. C.S.R is defined as Pmax/W; where Pmax is the maximum pulling load, W is the loading weight. Then, the each specification of the tester was able to determined in a certain way as C.S.R corresponds smoothly enough to the subjective slipperiness value on the sensory scale obtained in part 1. Moreover, even in matters of the test on powdery and oily surfaces which were similar to actual dusty and muddy wet ones, the smooth correspondence was also recognized. These results made clear that the newly developed tester can be regarded as appropriate for measuring the slipperiness of actual floors.

著者

小野 英哲 吉岡 丹

出版者

一般社団法人 日本建築学会

雑誌

日本建築学会論文報告集 (ISSN:03871185)

巻号頁・発行日

vol.188, pp.1-10,115, 1971-10-30 (Released:2017-08-22)

被引用文献数

1 1

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The pupose of this paper is to relate the athlete's sense on resilieucy to factors being extracted from measuring the resibiency. The result are obtained from the inquiry about the athlete's sense on resiliency as follows. ・Almost athletes are sensible the difference of resiliency. ・We could extract several gymnasiums which was typical type of resiliency. The results are obtained from the experiment of measuring resiliency with the apparatus being planned and manufactured by way of trial as follows. ・We could obtain dyynanic load-deflection courves of gymnasium floor. ・The relation of gymnasium floor's deflection energy and athlete's sense on resiliency is very intimate. ・The efficiency of vibration damping and the stability of the floor's deflection have influence upon the athlete's sense on resiliency.

著者

川瀬 雅雄 吉岡 丹 細谷 美佳子 紫竹 美和子

出版者

日本食品微生物学会

雑誌

日本食品微生物学会雑誌 (ISSN:13408267)

巻号頁・発行日

vol.32, no.1, pp.48-53, 2015-03-31 (Released:2015-09-10)

参考文献数

9

被引用文献数

2

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Even after Kudoa septempunctata parasitic in Olive flounder was found as a cause of food poisoning, similar cases of unknown cause were still taking place. Juvenile Pacific bluefin tuna (JPBT, hereafter) is often presented in those cases and it is suspected that K. hexapunctata parasitic in JPBT would be pathogenic for humans. We attempted to detect K. hexapunctata from JPBT leftover and patients' feces in 4 cases in Niigata prefecture from 2011 to 2014. In addition, we also investigated excretion of K. hexapunctata into the feces after intake of JPBT on a trial basis. The 4 cases occurred during summer from July to September. K. hexapunctata was detected from JPBT leftover and patients' feces; therefore, it was estimated that K. hexapunctata could be parasitic in JPBT eaten in all those cases. Furthermore, we also found that JPBT and Olive flounder were eaten together in 2 cases, but K. septempunctata was not detected from patients' feces. The detection rate of K. hexapunctata from patients' feces was 86% for feces collected within 3 days after meal, but it was lowered 25% for feces collected after 1 week. The quantity of K. hexapunctata excreted into feces after intake of JPBT on a trial basis tended to be declining with time, and then K. hexapunctata was detected in feces up to approximately 3 days after intake of JPBT. From those results, a fecal examination would be important as collecting feces after meal or during an early stage, and feces collected within 3 days after meal could be appropriate for the examination. Cases in relation to JPBT are similar to those of food poisoning caused by K. septempunctata and it is suspected that K. hexapunctata might be the cause. For K. hexapunctata, it would be necessary to accumulate and examine the case data while clarifying its pathogenicity.