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Radioactive Cesivm 137 Contents and Their Reduction under Process of Cooking in Food Products Cultivated in Kawauchi, Fukushima Prefecture
No full text2011 年３月東日本大震災により，福島第一原子力発電所は事故に見舞われ，近隣地区の人々は放射性物質による被曝が考えられた．食品中の放射性物質の含量についての報告は多くなされているが，調理の下処理による放射性セシウム137 の変化についての報告はほとんど見られない．
本報では福島県双葉郡川内村産の17 食品31 試料の放射性セシウム137 の調理下処理前の含量と，これらを5 つの下処理法の１または２方法を行った34 試料の下処理後の含量を測定し，減少率を算出した．下処理前の含量では，きのこ4 品，山菜5 品，果物5 品，野菜17 品の順に平均158.11，15.89，12.89，2.36Bq/kg であった．料理の下処理後の減少率は，根菜ときのこの7 試料の「洗う」では平均6.9％，果物と根菜の11 試料の「洗う・むく」は12.5%，根菜7 試料の「洗う・むく・茹でる」は74.4%，葉菜5 試料の「洗う・茹でる」は75.2%，山菜7 試料の「アク抜き」は74.3% であった
Consideration of "Informatization of Education" and Authoring of Learning Content
No full text教育の情報化では，ICT を活用した学習環境を構築し，学ぶ児童・生徒が一斉指導・協働学習・個
別学習を通して，より深まる授業の実現を目指している．そのような背景のもと，既存の学習コンテ
ンツの利用のみならず，教師が地域性や内容の不足度合いに応じて独自のコンテンツを制作すること
も必要である．本稿では，学習履歴の把握や学習資料の共有のプラットフォームとして学習管理シス
テムと，その上で利用される学習コンテンツに焦点をあて，それらをとりまく技術的な側面や制作環
境を中心に考察を行う
A Study on Agglomerated Areas Using Mobility Data
No full textAs we use mobile phones, mobility data is accumulated because of GPS or data transaction. Especially, mobility data by data transaction is huge quantity. Therefore, we can analyze human mobility as detail. However, huge data quantity prevents us from calculating and analyzing some statistics. We have troubles in treating big data by using spread sheet application software. In this research, we suggest that statistical modeling has some solution of its trouble. And the statistical modeling is introduced random effect term in linear regression. We illustrate this model applied for mobility big data and advantage of human mobility analysis
Removal of Heavy Metals inWastewater with Polyglutamic Acid as a Flocculating Agent
No full textThe flocculation method with polyglutamic acid was applied in order to remove heavy metals in wastewater. Removal efficiency more than ca. 90% was obtained for metals of chromium, copper, iron and zinc, while that of manganese (Mn) was only ca. 50%. Therefore, in the present study, a combined method of flocculation and coprecipitation with iron hydroxide was attempted to increase the removal efficiency of Mn. An ion exchange method was also applied for a comparison. For the combined method of flocculation and coprecipitation, the removal efficiency of almost 100% was accomplished at the wide pH range from 7 to 12, although that value decreased negligibly at pH 6. On the other hand, for the ion exchange method, the removal efficiency became higher as pH became lower. The maximum value (93%) was obtained at pH 3. The combined method of flocculation and coprecipitation was found to be useful for removing Mn in wastewater
Two-Photon Ionization of Chrysene and Phenanthrene in Cyclodextrin Aqueous Solution
No full textFormations of chrysene (Ch) and phenanthrene (PH) radical cation and hydrated electrons during two-photon ionization (TPI) of Chand PH in the presence of cyclodextrins (CD) were studied by transient absorption measurement using 266-nm laser flash photolysis (LFP) technique. Ionization of Ch occurred within the time interval of the laser flash (5 ns) to give the radical cation, which was confirmed by the observation of hydrated electrons at 720 nm in the presence ofα-, β-and γ-CD in water. The electron was generated by two-photon excitation by means of simultaneous irradiation from a 266-nm laser. The ionization quantum yield (Φion) of Ch obtained by LFP in the presence ofα-, β-and γ-CD(1.0×10-2M)were 36.2±2.2%,1.2±0.7%and 0.8±0.4%, respectively. Additionally, Φion of Ch in the presence of CDs was due to the stabilization energy of solvation. These behaviors suggest that the useful two-photon ionization results from the complexes of Ch and α-, β-and γ-CD, respectively. In the case of changed concentration of CDs (from 1.0×10-2M to 1.0×10-3M), Φion of Ch in the presence ofα-CD was dependent on the fluorescence lifetime (τ).In contrast, Φion of Ch in the presence of β-and γ-CD increased with decreasing β-and γ-CD concentration, and independent on the τ. This result suggested that increase of Φion was due to the stabilization energy of solvation with change of formation of inclusion complexes Chand CDs. In this study, we found that TPI of Ch depended on the properties of the complexes with CDs. Finally, we compared Φion of Ch and PH, which was observed two-photon ionization process of PH in the presence ofα-, β-and γ-CD in water
Reconsideration of a Method of Teaching the Verb BE
No full textIn February, 2015, the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan gave some universities a request for improving their educational content. The verb BE is often picked up as inappropriate content taught in university. However, to acquire how to use the verb BE correctly is difficult for Japanese learners of English, so this paper shows some causes which make it difficult for Japanese learners to use the verb BE correctly, and then shows a new method for Japanese learners to acquire the usage of the verb BE
Educational Practice Using ArcGIS
No full textThis report introduces two educational practices. One is the class of Computing Exercise Ⅳin Department of Industrial Business and Engineering in Fukui University of Technology, and another is the class of Environment Remote Sensing in Department of Architecture and Civil Engineering. In the former class, GIS (Geographic Information System) and CAD (Computer Aided Design) are mainly studied in order to include the contents which agree with the high school curriculum guidelines "Industry" of the Ministry of Education, Culture, Sports, Science and Technology, and two written proposals are made as the applications of GIS and CAD to business fields. ArcGIS as GIS software and AutoCAD as CAD software are used. In the latter class, ArcGIS is used for the image processing and measurement by the satellite remote sensing, and natural disasters (2011 eastern Japan great earthquake, 2004 Fukui heavy rainfall), air pollution, global warming, etc. are studied. The used satellite data are Landsat5, Landsat7, Landsat8, Aster, Alos and MODIS. In both classes, good educational results are obtained
Joint Symposium between Fukui University of Technology and Nation University
No full textThe first joint symposium of both university, Fukui University of Technology and Nation University, was held on December 13th and 14th 2014 at the Lampang School of Nation University in Thailand. The joint symposium participants are Tanin Lampang Governor, Suchichai Nation Multimedia Group CEO, Pongin Nation University President, Nation University faculties and Nation University students from Thailand side and Matsuura Director of ASEAN office, Natsulee ASEAN office administrative staff, Horita Assistant Secretary General, Nakayasu Head of International Center, Hashizume Chief of International Center, Nishio Associate Professor, Kigawa Associate Professor, Fujiwara Associate Professor, a grad student and two students of Department of Design from japan side. This joint symposium was published in Thai English-language newspaper "NATION" on the December 15