著者
佐々木健 伊藤一成
雑誌
第77回全国大会講演論文集
巻号頁・発行日
vol.2015, no.1, pp.983-985, 2015-03-17

平成24 年度より中学校の技術家庭科で,計測や制御を伴うプログラミングが必修化された.これまで様々な取り組みが報告されてきたが,社会教育や家庭教育も含めた視点での一層の整備が急がれる.そこで本稿では,プラレールに着目した.世代を超えて親しまれるプラレールを使用することで,親と子が共に学習への興味を持続する事が可能だと考えられる.さらに,各種センサを利用した情報機器の多様化や低価格化が進んでおり,一般の人でもセンサデバイスを,身近なものとして捉えるようになってきた.本研究ではこれら両者を組み合わせた学習教材を試作したので,報告する.
著者
早川 由紀夫 藤根 久 伊藤 茂 Lomtatize ZAUR 尾嵜 大真 小林 紘一 中村 賢太郎 黒沼 保子 宮島 宏 竹之内 耕
出版者
公益社団法人 東京地学協会
雑誌
地学雑誌 (ISSN:0022135X)
巻号頁・発行日
vol.120, no.3, pp.536-546, 2011-06-25 (Released:2011-09-06)
参考文献数
11

Two wood trunks, one charred and 75 years old and the other not charred and more than 199 years old, were collected from Hayakawa ignimbrite of Niigata Yakeyama Volcano. They were investigated using the radiocarbon wiggle-matching method to determine the age of the eruption. The result was 1225-1244 cal AD (95.4%), which is over 200 years younger than previous estimates. The eruption, including the Hayakawa ignimbrite, was the largest during the volcano's life period of 3000 years. Co-ignimbrite fallout KGc ash has been found at many archaeological sites spreading on the eastern flanks of Myoko Volcano and the Takada Plain. The age obtained here will provide a useful time constraint for archaeologists and volcanologists studying this area.
著者
石島 健太郎 伊藤 史人
出版者
一般社団法人日本社会福祉学会
雑誌
社会福祉学 (ISSN:09110232)
巻号頁・発行日
vol.56, no.4, pp.82-93, 2016-02-29

本研究は,意思伝達装置を用いるALS患者204人を対象に,複雑な条件組み合わせと結果の関連を明らかにすることができるファジィセット質的比較分析(fsQCA)を用いて,筋萎縮性側索硬化症(ALS)の患者が意思伝達装置を用いる際,どのような条件がそろえば満足度が高まるのかを明らかにするとともに,社会福祉学でのfsQCAの有効性を示すことを目的とする.分析の結果,重度障害者でも意思伝達装置を満足度の高い利用方法が複数示唆され,かつ年齢や同居する家族の有無に応じて支援すべき方向性も異なってくることが明らかとなった.こうした知見は,ケースワークにおける個別性の原則を経験的に確かめるものであるとともに,実践的には支援者が患者の属性を踏まえた意志伝達装置の利用促進に示唆を与えるものである.また,無作為抽出が困難で,さまざまな条件が複雑に関連した事例の多い社会福祉学でfsQCAを用いる意義も示された.
著者
松村 勝之 澤田 祐樹 伊藤 美千穂
出版者
日本食品化学学会
雑誌
日本食品化学学会誌 (ISSN:13412094)
巻号頁・発行日
vol.20, no.1, pp.31-36, 2013
参考文献数
9

Cinnamon Bark is the bark of the trunk of Cinnamomum cassia Blume (Lauraceae), or such bark from which a part of the periderm has been removed, which is designated in the Japanese Pharmacopoeia Sixteenth Edition. It is used in many stomachics of Kampo formulas, and also used as a spice which flavor is unique and favoured around the world. Origin plant species of Cinnamon Bark has some relative species, and they are used for medicinal and food purposes in many countries. It is difficult to distinguish C.cassia from other species only by appearance and taste when they are in a form of powder which is one of the most common styles for use. In order to develop methods for identification of origin plant of Cinnamon Bark, we tried some procedures using DNA sequences. Fresh leaves whose origin plant species were known were used to search for suitable DNA regions to distinguish C.cassia, and rbcL region was found. A combination of PCR amplification with restriction enzyme digestion of DNAs from either fresh leaves or powder could distinguish C.cassia from others. The method we developed in this research could be one of the solutions for the difficulties of DNA extraction and PCR amplification of some crude drugs because of their viscous liquid. It worked well for the samples whose DNA was fragmented by heat and dry. So this method may support the identification of other origin plants which were difficult to be distinguished by conventional simple DNA sequencing method.
著者
伊藤 毅志
出版者
一般社団法人情報処理学会
雑誌
情報処理 (ISSN:04478053)
巻号頁・発行日
vol.50, no.9, pp.887-894, 2009-09-15
被引用文献数
4

多くの幸運が重なり,電気通信大学情報工学科伊藤研究室の開発した「文殊」は,第19回世界コンピュータ将棋選手権において,初出場で第3位という成績を残すに至った.この解説では,「文殊」の誕生までの歩みと文殊で行った「合議アルゴリズム」の技術的な工夫と,いくつかの実験結果について紹介する.

3 0 0 0 OA 戦争と石油

著者
伊藤一隆 著
出版者
日本石油調査課
巻号頁・発行日
1918
著者
石川 奈緒 伊藤 歩 海田 輝之
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.13, no.3, pp.87-93, 2014 (Released:2014-08-15)
参考文献数
26

Radionuclide contamination from the nuclear accident at the Fukushima Daiichi Nuclear Power Plant has been found in sewage sludge ash produced in eastern Japan. When such contaminated waste contains less than 8,000 Bq/kg radiocesium, it is being disposed in controlled landfill sites. In order to assess the possible spread of the radionuclides by their leaching from the landfill sites, it is important to know the leaching behavior of the radionuclides from the sewage sludge ash and factors influencing the leaching behavior. In this study, leaching experiments using stable Cs and Sr were conducted for sewage sludge ash under several conditions to investigate effects of chemical composition of leachate, pH, and solid/liquid ratio on Cs and Sr leaching behaviors. In the pH range from 6 to 12, the leaching ratio of Cs or Sr was less than 5.2 or 0.21%, respectively. Additionally, the leaching ratio of Sr decreased with increasing pH of the leachate. In contrast, the higher the pH in the leachate was, the higher the leaching ratio of Cs was. Finally, possible radionuclide leaching from contaminated sewage sludge ash and then radionuclide concentrations in an actual landfill leachate were assessed. It could be suggested that 90Sr leaching from the landfill site had the least effect on the environment, whereas 134+137Cs leaching needed to be taken into account for spreading radioactive materials from the landfill site to the environment.
著者
岡田 雋 伊藤 哲司
出版者
北海道大学農学部
雑誌
北海道大學農學部邦文紀要 (ISSN:03675726)
巻号頁・発行日
vol.2, no.4, pp.162-170, 1956-11-18
著者
伊藤 隆 宮島 博
出版者
一般社団法人 日本航空宇宙学会
雑誌
日本航空宇宙学会論文集 (ISSN:13446460)
巻号頁・発行日
vol.53, no.619, pp.351-357, 2005 (Released:2005-11-09)
参考文献数
16
被引用文献数
2 2

Performance of the methane fueled rocket nozzles are numerically investigated using computational fluid dynamics approach. A simple set of chemical reactions and kinetics for methane/oxygen nozzle flow is proposed. The chamber pressure, mixture ratio and size of the nozzle are parametrically changed to study the influence of characteristic rocket engine design parameters on nozzle losses. The amount of dissociation is high when the chamber pressure is low and the kinetic loss becomes dominant compared to the other nozzle losses. The peak specific impulse is achieved at a higher mixture ratio region as the chamber pressure increases. The chemical non-equilibrium flow appears mainly at down stream region of the nozzle throat. The influence of the chemical non-equilibrium effect decreases as the chamber pressure increases. Supersonic chemically reactive gas stays longer in the nozzle as the size of the nozzle become larger and the amount of recombination increases which decreases the kinetic loss. When the chamber pressure is high, the kinetic loss becomes small and the effect of the size of nozzle also becomes small.