著者

加藤 浩徳 城山 英明 深山 剛

出版者

Sociotechnology Research Network

雑誌

社会技術研究論文集 (ISSN:13490184)

巻号頁・発行日

vol.6, pp.147-158, 2009

被引用文献数

2

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本研究は,LRTの導入を10年近くの期間にわたって検討してきている,宇都宮市を事例として取り上げ,LRT導入に関わる問題の構造を,関係者へのインタビュー調査によって分析し,今後の導入に向けた検討に資することを目的とする.具体的には,まず,導入を巡る議論の経緯を整理し,関係主体に対するインタビュー調査を実施した.次に,インタビュー調査の結果から,関係主体の問題構造認識を分析し,各主体の関心の違いや問題の認識の違いを比較した.インタビュー結果から,導入に関わるファクターとドライバーを抽出し,LRT導入にかかわるイシューの整理を行った.さらに,関係主体間の相互期待表を整理することを通じて,LRT導入に向けた関係主体間の連携の可能性を検討した.

著者

高橋 正太郎

出版者

明治大学大学院

雑誌

法学研究論集 (ISSN:13409131)

巻号頁・発行日

no.41, pp.1-18, 2014

著者

小林 昭三 興治 文子

出版者

一般社団法人 日本物理学会

雑誌

日本物理学会講演概要集

巻号頁・発行日

vol.72, pp.3386-3386, 2017

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<p>明治150年前年までに世界最先端レベルの物理学や化学や生理学他の本格的科学教育実現に挑みその新展開を目指した多くの新証拠を各地の授業筆記探索し発見してきている。そうした科学・理科・物理の教育史に関する新知見と諸成果について報告し,その現代的な科学教育の源流,その国際的な相互連関,能動学習型(Gage教科書他)における科学教育の今日的価値を考察して,それらを現代的にどう蘇らせるかを考究する。その際,最新のモバイルICT基盤を活用したアクティブラーニング授業法としてどう新展開出来るかについての試みを報告する。特に,科学の核心的概念を深く形成する際の鍵実験における予測と検証の過程を従来に無い様な見事なデータ提示などで明快な検証法として新展開できる,最新のモバイルICT(タブレットPC・超高速カメラ他)活用による手軽で効果的な能動学習型授業法について論究する。</p>

著者

石垣 尚男 真下 一策 遠藤 文夫

出版者

愛知工業大学

雑誌

愛知工業大学研究報告. A, 教養関係論文集 (ISSN:03870804)

巻号頁・発行日

vol.27, pp.43-47, 1992-03

被引用文献数

2

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わが国のトップレベルにあるスポーツ選手116名(ボールゲーム)を対象にして,11項目の視覚機能を調査した。調査対象を監督,コーチの合議によりA,B,Cランクにわけ各群の視覚機能を比較した。その結果,A>B>Cの順で視覚機能が優れており競技力との間に関係がみられた。Aランクは11項目のうち,10項目においてB,Cランクより優れていた。AランクとCランクの差は明らかであったが,AとBランク,BとCランクの差はそれに比較して少なかった。Aランクは動体視力,焦点調節,深視力,眼と手の協応動作の4項目でB,Cランクより優れており,これらの視覚機能はボールゲームの状況判断の知覚的部分において重要な働きをしているものと考えられた。

著者

塚田 康元 藤田 健太 中林 亮 佐藤 努 大竹 翼 米田 哲朗 藤井 直樹 山川 稔 笠間 丈史 Pascua C. Arcilla C. Alexander R.

出版者

日本粘土学会

雑誌

粘土科学討論会発表論文抄録

巻号頁・発行日

vol.57, pp.88-89, 2013

著者

[豊田天功] [著]

巻号頁・発行日

vol.[62], 1800

著者

長 友昭

出版者

拓殖大学政治経済研究所

雑誌

拓殖大学論集. 政治・経済・法律研究 = The review of Takushoku University:politics, economics and law (ISSN:13446630)

巻号頁・発行日

vol.20, no.2, pp.119-141, 2018-03-15

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近時話題となっている所有者不明土地問題については,従来から土地の処理の現場に関わる,各種団体や行政機関の問題の把握が主となっていたが,最近は,それらの委員会の専門委員などとして民法,行政法,憲法学者が招かれ,法制的議論が進められるようになってきた。ここでの議論を委員の研究成果や議事録の分析,会議の傍聴により追いかけて,その方向性を把握した。すなわち,今後の新制度の指針となるものとして,農業経営基盤強化促進法における利用権の設定が挙げられることから,この利用権の運用実務とその問題点を検討し,利用権の期間の長期化の可否に関する注意点を明らかにした。さらに民法上の共有,相続および近時の改正点,ならびに不動産登記法や近時改正のあった土地改良法や森林法などの現行法の解釈と法体系上のありようを検討し,今後目指される新制度との具体的な異同および類似性と親和性を明らかにした。

著者

鎌田 靖弘 大城 伸明 屋 宏典 本郷 富士弥 知念 功

出版者

Japanese Society of Animal Science

雑誌

日本畜産學會報 = The Japanese journal of zootechnical science (ISSN:1346907X)

巻号頁・発行日

vol.68, no.2, pp.121-130, 1997-02-25

参考文献数

17

被引用文献数

1

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ギンネムには毒性物質ミモシンが存在するため,家畜に多量給与するとミモシン中毒症を引き起こすので,飼料としては制限給与している.このミモシン中毒症の治癒,解明を行うためには実験動物にその中毒症を誘発させる必要がある.そこでまずブロイラー雛にミモシン中毒症を迅速で簡易に誘発させる研究を行い,またその中毒時のミモシンの代謝についても調べた.まず,7日齢のブロイラー雄雛にギンネム種子を粉砕し20メッシュの篩を通した種子粉末(ミモシン含量6.55%)を,市販飼料に0,10,15,20添加し各々12日間自由給与した.その結果,各種子粉末飼料群では食欲不振,体重増加の減少がみられ,更に座り込み,足をけいれんさせる特異的な脚弱症状,および腎臓の肥大化がみられた.また各組織でミモシンが検出され,特に羽毛,皮膚および腎臓で高い値が得られた.更に1%粗ミモシン飼料を自由給与すると,15%種子粉末飼料給与時と全く同程度の中毒症が認められミモシン中毒症と断定された.次に粗ミモシンを250mg/日,経口投与しながら市販飼料を給与すると,食欲不振と体重増加の減少は緩和した.しかし,各組織中でのミモシン含量は15%種子粉末飼料給与と同様に存在した.次に加齢とミモシン中毒症との関係を調べた.1,2,3,4および5週齢で15%種子粉末飼料を12日間給与すると,食欲不振,体重増加の減少は加齢に関係なく見られたが,組織中のミモシン含量は加齢に伴って減少した.最後に,ミモシン中毒症の雛に市販飼料を20日間給与し4日ごとに屠殺し,体内でのミモシンの代謝を調べた.その結果,まず市販飼料を給与した初日から食欲が回復し,採食量は市販飼料給与後17日目で対照群と有意差が認められなくなった.それに伴って体重も増加した.また各組織のミモシン濃度は羽毛,甲状腺では20日目でもミモシンが認められた.それに対し腎臓,血清,肝臓は4日目から,総排泄物は8日目から検出されなくなった.皮膚,筋肉,冠,精巣は20日目でも極少量のミモシンが検出された.

著者

道上 勉 鬼塚 長徳 北村 哲

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌B(電力・エネルギー部門誌) (ISSN:03854213)

巻号頁・発行日

vol.110, no.11, pp.887-894, 1990-11-20 (Released:2008-12-19)

参考文献数

5

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The previous generator excitation control system is based on AVR control of generator terminal voltage. This system can't accommodate reactive power up to the facility limit even when the power system voltage decreases to the limit for stable operation. We attempted to develop advanced excitation control system (PSVR) to achieve higher constant sending end voltage of power station. We intended to apply the system to the generator connected to a 500kV system which contributes most effectively to the voltage stability of a bulk power transmission system. This PSVR produces higher control gains than the AVR, the following functions were adopted: (1) AVR gain reduction circuit, (2) phase compensation circuit, and (3) damping improvement by enlarging the limiter of the PSS. In addition, various functions were provided. These include voltage slope characteristics to balance the reactive power of adjacent generators and PSVR output and terminal voltage limiter to stabilize the generator operation. Previously to an application to a real system, a transient response test was performed by combining PSVR and generator simulator to verify the damping improvement and stability of the voltage control.

著者

関根 泰次 川路 恭郎 高橋 一弘

出版者

一般社団法人 電気学会

雑誌

電氣學會雜誌 (ISSN:00202878)

巻号頁・発行日

vol.111, no.4, pp.289-296, 1991-04-20 (Released:2008-11-20)

参考文献数

8

著者

Fujiwara M. Toya K.

出版者

気象庁気象研究所

雑誌

Papers in Meteorology and Geophysics (ISSN:0031126X)

巻号頁・発行日

vol.9, no.1, pp.40-47, 1958

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梅雨末期の豪雨をPPIレーダーの写真と雨量図について比較して局地的に降る豪雨の申で局地に集中して降る豪雨の一つの典型とみなされる例を示す.1957年7月上旬の脊振山のレーダーの観測(福岡管区気象台でレーダーを予報に応用する研究の一環として行われた)に基いて解析した結果 (1)低層の南西jet気流(2)暖域内の対流不安定の成熟が定着性レインバンドの発生,発達の主な原因であることがわかつた。また,自記雨量観測点ではこまかい等雨量線の模様が引けないので区内観測所の資料を用いて細かい日雨量パターンを引いてみたところ前線と定着性レインバンドの近くにその交点附近で狭いが非常に強い降雨域があることとわかつた。従つてこれら二つの結果は上述の二つの条件が前線の定常化は局地性の豪雨の予報にとつて非常に重要な要因であつたことを暗示している。

出版者

[ ]

巻号頁・発行日

vol.[9], 1000

著者

宇沢 弘文

出版者

日経BP社

雑誌

日経ビジネス (ISSN:00290491)

巻号頁・発行日

no.1125, pp.134-138, 2002-01-21

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今から10年以上も前のことになるが、ローマ法王ヨハネ・パウロ2世から1通の手紙をいただいたのは1990年8月のことだった。そこにはこう書かれてあった。 新しい「レールム・ノヴァルム(Rerum Novarum、元来はラテン語で新しいことという意)」を出す準備作業に協力してほしい——。

著者

塩月 善晴 大原 資生 山本 哲朗

出版者

公益社団法人 土木学会

雑誌

土木学会論文集

巻号頁・発行日

vol.1987, no.381, pp.83-90, 1987

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Ochi (1973) proposed the heavy rain classes according to their damages by use of the maximum 3 hour and 1 hour rainfall amounts in the rainfall. This means that the parameters of maximum rainfall intensity curve (<i>R_T</i> curve) can determine the class in which the present rain is. In this paper the parameters <i>a</i>, <i>b</i> of Talbot type <i>R_T</i> curve determined by the six 10min rainfall data within an hour are used to make diagnosis how the present rain ranks in the rain classes and if it will be a heavy rain. Analytical results in two heavy rain cases (Nagasaki, 1982 and Yamaguchi, 1985) show the heavy rain can be detected several ten minutes before its real beginning.

著者

永閑

出版者

村上平楽寺

巻号頁・発行日

vol.[16], 1663

著者

国本 伊代

出版者

上智大学イベロアメリカ研究所

雑誌

イベロアメリカ研究 (ISSN:03881237)

巻号頁・発行日

vol.28, no.2, pp.57-68, 2006

著者

津旨 大輔 坪野 考樹 三角 和弘 立田 穣 豊田 康嗣 恩田 裕一 青山 道夫

出版者

日本地球惑星科学連合

雑誌

日本地球惑星科学連合2018年大会

巻号頁・発行日

2018-03-14

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A series of accidents at the Fukushima Dai-ichi Nuclear Power Plant following the Great East Japan Earthquake and tsunami of 11 March 2011 resulted in the release of radioactive materials to the ocean by two major pathways: direct release from the accident site and atmospheric deposition. A 6 years, regional-scale simulation of 137Cs activity in the ocean offshore of Fukushima was carried out by the Regional Ocean Model System (ROMS), the sources of radioactivity being direct release, atmospheric deposition, the inflow of 137Cs deposited into the ocean by atmospheric deposition outside the domain of the model, and river discharges.Direct releases of 137Cs were estimated for 6 years after the accident by comparing simulated results and measured activities adjacent to the accident site. In addition, river discharge rates 137Cs were calculated by multiplication between river flow rate and 137Cs activity. River flow rates were simulated by a water circulation analysis model for each catchment. Temporal change of 137Cs activity both of particle and dissolved forms were measured at 8 rivers and normalized by the inventory of 137Cs in each catchment. 137Cs activity in other 4 rivers were estimated by the normalized 137Cs activity and inventories of catchments. After 2013, direct release and river discharge were dominant for input of 137Cs to the ocean. Apparent half-life of direct release and river discharge of were estimated to be about 1 year and 2 years, respectively.Apparent half-life of measured 137Cs activity adjacent to 1F NPP was about 1 year, on the other hand, the ones in the coastal zone away from 1F NPP were about 2 years after 2013. Apparent half-life of simulated results with river discharge was in good agreement with the one in the coastal zone away from 1F NPP. River discharge affected on temporal change of 137Cs activity there. On the other hands, simulated 137Cs activities with river input were one order of magnitudes smaller than observations. This underestimation suggests modifications of river input process, such as estuary mixing process, removal from particle form 137Cs and inputs from small rivers around the 1F NPP.

著者

三浦 輝 栗原 雄一 山本 政義 山口 紀子 坂口 綾 桧垣 正吾 高橋 嘉夫

出版者

日本地球惑星科学連合

雑誌

日本地球惑星科学連合2018年大会

巻号頁・発行日

2018-03-14

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Introduction: A large amount of radiocesium was emitted into environment by the Fukushima Nuclear Power Plant (FDNPP) accident in March, 2011. Adachi et al. (2013) reported glassy water-insoluble microparticles including radiocesium, called as radiocesium-bearing microparticles (CsMPs). The CsMP is spherical with 1-3 μm in diameter and the radioactivity ranges from 0.5 to 4 Bq. It has been suggested that the CsMP was mainly emitted from Unit 2 or Unit 3 of FDNPP based on the 134Cs/137Cs activity ratio in the samples. In contrast, Ono et al. (2017) reported new particles called as Type B particles emitted from Unit 1. Type B particles are in various shapes and the size is 50-300 μm with radioactivity ranging from 30 to 100 Bq. These differences may represent the difference of generating process or condition of each unit in the plant. Previous studies have reported chemical properties of radioactive particles in detail but the number of particles reported is small. In this study, we tried to understand radioactive particles systematically by analyzing a lot of particles separated using wet separation method. Method: In this study, we collected 53 Type B particles and 13 CsMPs from road dusts, non-woven fabric cloths from Fukushima, and aerosol filters from Kanagawa Prefecture by a wet separation method. After measurement of radioactivity with a high-purity germanium semiconductor detector, scanning electron microscope and energy dispersive X-ray spectroscopy analyses were performed to confirm that separated particles were CsMPs or Type B particles. We investigated inner structure and calculated the volume and porosity of Type B particles by X-ray μ-computed tomography (CT). We determined Rb/Sr ratio by X-ray fluorescence (XRF) analysis. Redox condition of each unit was investigated by X-ray adsorption near edge structure (XANES) analysis for Uranium in particles. Result: CT combined with XRF analysis showed the presence of many voids and iron particles in Type B particles. In addition, 137Cs concentration of CsMPs were ~10000 times higher than that of Type B particles, which suggests that Type B particles were formed by fuel melt. In contrast, CsMPs were formed by gas. Among Type B particles, spherical particles had higher 137Cs concentration than non-spherical particles. Type B particles with larger porosity had higher 137Cs radioactivity because of capturing a lot of volatile elements such as Cs and Rb within the particles. Moreover, four spherical particles had inclusions in their voids which are considered to be formed by rapid cooling of gaseous materials. XANES analysis showed the presence of U(IV) in a Type B particle, whereas U(VI) in other Type B particles and a CsMP. These results suggest that Type B particles and CsMPs are totally different in forming process and they have information of condition in Units.

著者

青山 道夫

出版者

日本地球惑星科学連合

雑誌

日本地球惑星科学連合2018年大会

巻号頁・発行日

2018-03-14

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Radiocaesium (134 Cs and 137 Cs) released by the TEPCO Fukushima Dai-ichi Nuclear Power Plant (FNPP 1) accident that occurred in March 2011 was injected directly into the North Pacific Ocean via the atmosphere or directly discharged as contaminated water. It is considered that tritium (3H) is also released into the atmosphere as water, then enters the ocean through precipitation or river water and enters the water circulation by evaporation from the surface of the ocean. In addition, 3H is directly injected into the ocean as contaminated water, it is considered that it also enters the water circulation like 3H that entered the ocean via the atmosphere. There is well known tritium source other than FNPP1 accident derived tritium in our environment. Cosmogenic tritium is big source term, too. In this presentation, radiocaesium and 3H activity concentrations on the coast of Fukushima obtained in 2014, 3H/137Cs activity ratio and 134Cs/137Cs activity ratio were examined and discuss about behavior of radiocaesium and tritium.At Tomioka, 134Cs/137Cs activity ratios ranged from 0.31+- 0.03 to 0.35+-0.03 and were similar with 134Cs/137Cs activity ratios observed at the station FNPP1-T-1 where those ranged from 0.29 to 0.40. 134Cs/137Cs activity ratio off Fukushima stations ranged from 0.24+-0.03 to 0.37+-0.03. The consistency of 134Cs/137Cs activity ratio in these regions are clearly shown. An activity ratio of 0.355 for 134Cs/137Cs activity ratio means that 134Cs/137Cs activity ratio at the time of accident, 11 March 2011, was 1.0 whcih is similar with 134Cs/137Cs activity ratio in the core inventory at FNPP1 at the time of the accident [19,20]. This indicates that major source of radiocaesium observed at Tomioka, off Fukushima stations and the station FNPP1-T-1 should be FNPP1 accident derived radiocaesium and originated from the same source.3H activity concentrations at Tomioka and Hasaki were 175 ±14 Bq m-3 in June 2014 and 57±12 Bq m-3 in August 2014, respectively. In contrast with strong gradient of 137Cs activity concentrations in surface water between FNPP1-T-1 and off Fukushimastations as stated previosuly, 3H activity concentrations among the off Fukushima stations including Tomioka and Hasaki which located north and south of FNPP1 showed relatively homogenius as around 60 Bq m-3 to 200 Bq m-3 during the period from May 2014 to September 2014. Only exception was obserevd at FNPP1-T-1 station and 3H activity concentrations exceed 1000 Bq m-3. It is also known that 3H activity concentration in precipitation is relatively 3H rich rather than 3H activity concentrations in seawater due to cosmogenic 3H of which activity concentration ranged 180 - 1000 Bq m-3 in precipitation globally and observed 3H activity concentrations in Tomioka river were 590-700 Bq m-3 during the period from Dec. 2013 to Dec. 2015 and 3H activity concentrations in several rivers at Fukushima region also showed similar level around several 100 Bq m-3 by monitoring of Fukushima Prefecture, and 690 +- 20 Bq m-3 on 19 January 2015 (Aoyama unpublished data). This homogenous distribution of 3H activity concentrations in this interestd region might indicate that contribution from 3H rich water from sorrounding rivers located north and south of FNPP1 site was larger rather than flux of 3H from FNPP1 site.On the other hand 3H/137Cs activity ratio at Tomioka was 2.0 +- 0.2 in June 2014, however 3H/137Cs activity ratio at station FNPP1-T-1 ranged from 2.2 to 15.3. 3H/137Cs activity ratio at off Fukushima stations ranged from 1.1 +- 0.1 to 17.1 +- 2.1. The 3H/137Cs activity ratio at Tomioka is close to lower side of 3H/137Cs activity ratio at station FNPP1-T-1. The physical and chemical characteristics of 3H are quite different from those of caesium of which form in seawater is dissolved but cannot evaporate from surface of seawater. 3H might exist as HTO and HTO can move by evaporation and precipitation through seawater surface. During the transportation processes in the ocean and also possible different source of highly contaminated water from FNPP1 site, reasons of the observed variability of 3H/137Cs activity ratio in this region might be complex. One possibility of this variability after released from FNPP1 site may be evaporation.

著者

Tsubono Takaki Kazuhiro Misumi Daisuke Tsumune Michio Aoyama Katsumi Hirose

出版者

日本地球惑星科学連合

雑誌

日本地球惑星科学連合2018年大会

巻号頁・発行日

2018-03-14

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We conducted the five ensemble simulation of 137Cs activity in the North Pacific Ocean (NPO) water from 1945 to 2020, before and after the Fukushima Dai-ichi Nuclear Power Plant (1F NPP) accident. We applied the Regional Ocean Model System (ROMS) with variable mesh of 1/12º-1/4º in horizontal, 45 levels in vertical), of which domain was the NPO, to the activity in NPO by using the estimations of 137Cs activity flux such as the atmospheric deposition due to the atmospheric nuclear weapon test from 1945 to 2020 and the atmospheric deposition and the direct release due to 1F NPP accident from 2011 to 2020, but climatology as physical forcing in the whole time. The calculations show almost comparable to the 137Cs activities from 2011 to 2014 in the area that was increased or not increased by the impact of the accident. That suggested that this model reproduced the observed 137Cs activities reasonably from 1945 to 2014.The model showed the largest inventory (290 PBq) of the 137Cs activity in the NPO recorded in 1966, because the largest fallout occurred around 1963 due to the atmospheric nuclear weapon test. The inventory has gradually decreased to about 60PBq by January 2011 because of the half-life and the outflow through the boundaries of the NPO, while hardly showing impact of the Chernobyl accident. The Inventory rapidly increased to 76PBq of which 34PBq existed in surface layer (0 - 200m depth) and 31PBq in central layer (200m - 600m depth) after the accident in April 2011 and then decreased to 56PBq of which 19PBq in the surface layer and 27PBq in the central layer in 2020. The actual half-life, including the radioactive half-life, the transport between the layers and the outflow from the domain, of the inventory was calculated before and after the accident. While the inventory showed same the actual half-life of about 20 years before and after the accident, the half-life of the total amount in the surface decreased from 14 years before the accident to 12 years after the accident and that in the central layer increased from 19 years to 33years. This result showed that the decrease in the total amount in surface is mainly because of the transport from the surface to the central layer after the accident.