灰アルカリ抽出法により、岩手県内で発生する下水汚泥焼却灰及び廃アルカリを用いてリン回収を行う際の経費削減を図るため、各種削減手法における効果試算を行った。
　その結果、余剰熱等を加熱用熱源として活用することにより、リン回収施設のさらなる経費削減が可能であることが分かった。

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The Tohoku earthquake occurred on March 11th, 2011, and the large tsunami brought with it great suffering in the coast of Tohoku district. In this region, the recovery activity is still executing. Then, rubbish of the wood- base is stacked up in everywhere. In the meantime, we have examined an effective utilization of the woody biomass until now. In this report, the challenge in a disaster area using Stirling cooler and Stirling engine is introduced.

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「KOGARASHI」は、「北国の冷たい風に負けずアクティブに行動する高齢者」をテーマに、短大の卒業研究プロジェクトとして開発、製作した一人乗りの電気自動車である。家屋が点在する地方において、低速で移動するシニアカーを冬に使用することは忍耐のいることであり、外出を控える高齢者も少なくない。「KOGARASHI project」は、介護予防や閉じこもり防止策としてのコミュニティ構築、通院等の自立支援を目的とし、冬に使えるシニアカーの提案として、年度を越えた卒業研究により開発と製作を行った。デザイン教育の観点から、各年度ごとにデザインプロセスを踏まえることとし、開発対象部位やコンセプトを分けることにより、個別のテーマを設定してそれぞれの制作を完結させながら、単年度では困難なプロトタイプの製作を実施した。

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フレキシブル薄膜エネルギーデバイスとして，フレキシブル薄膜Liイオン二次電池の現状を紹介し，次に，薄膜二次電池と薄膜Si太陽電池を一体化した「フレキシブル複合電池」の開発状況を報告する．さらにフレキシブル複合電池とフレキシブルエレクトロニクスデバイスが一体化した自立型フレキシブルエレクトロニクスデバイスの今後について付言する．

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マイクロホンを利用した簡便でローコストな風速センサを開発した．本論文では，このセンサの原理について，すなわちマイクロホンが風を受けたときに発生する雑音から，その他の音の影響を除去し，風速を求める方法を提案する．また，このセンサの，実世界の風に合わせて揺らぐ樹木のリアルタイムアニメーションシステムへの応用例を示し，その有効性を示す.

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Recently, light material as aluminium alloys has applied for much industrial application. But, aluminium alloys is poor wear and thermal resistance than cast iron. In this paper, we made coaings using gas atomized and water atomized powders by HVOF spraying. And we described wear characteristics and micro structure of these coatings. From the result, graphite phase was not observed in the sprayed coatings.

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In this paper, we propose VLSI architecture of Kalman Filters with minimum latency based on FADDEEVA algorithm. It is important to minimize latency, because latency degrades a stability of feedback systems. In proposed architecture, the minimization of latency is achieved by parallel computation of parameters of Kalman Filters and the triangularization and nullification process of the FADDEEVA algorithm. This architecture has a highly parallel structure. For an n state and m measurement dynamic system, this architecture requires latency of only (3+m+6⌈log₂n⌉)t_as+(6+m)t_m+t_d, where t_as, t_m and t_d indicate delay of an adder, a multiplier and a divider, respectively. This means a reduction of latency of approximately 0.06 times when compared to a systolic array Kalman filters for the filter order of m=n=100. Moreover, latency of this architecture slightly increases against the increasing filter order, so that this architecture is also effective to the higher order Kalman filters. The proposed architecture is very suitable for VLSI implementation, because it can be simply constructed from six kinds of modules and some basic arithmetic elements.

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The Great East Japan Earthquake occurred on March 11, 2011, and the huge tsunami brought with it great suffering in the coast of Tohoku region. The tsunami swept away people, cars, houses and whole communities In Iwate prefecture where our college exists, coverage showed that dozens of cars and containers being washed into the sea when a tsunami hit Kamaishi port. The disaster cut off lifelines such as gas, electricity and running water in widespread areas across northeast Japan. In this region, the recovery and reconstructing activity is still executing but the wasted woody biomass has been stacked up in everywhere In the meantime, we have considered and examined an effective utilization of such wasted woody biomass. In this report, the outline of the challenge using Stirling cooler and Stirling engine in the disaster area is concretely introduced. In the community of the disaster area, the system which utilizes solar and wind energy in addition to the woody biomass fuel is also expected.

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This paper describes the measured results on carbon dioxide concentrations in 27 temporary houses in summer and winter in Sendai city after half a year of the Great East Japan Earthquake. The carbon dioxide concentrations in temporary houses were high generally. In summer, the median value in 7 temporary houses (26%) and 75% tile value in 20 temporary houses (74%) exceeded 1,000 ppm. Moreover, concentrations in 17 residences (63%) exceeded 5,000 ppm, and highest was about 11,000 ppm. In winter, the median value and 75% tile value were both higher than that in summer respectively. Although ventilation is effective to reduce the indoor carbon dioxide concentrations, temporary house where air volume is small, when an open type combustor was used in winter, indoor carbon dioxide concentration might exceed 10,000 ppm.

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The aim of this study is to investigate the influence of lean combustion on the formation of combustion chamber deposit in a two-stroke cycle engine. The contribution of fuel and lubricant oil to the deposit formation was discussed in this paper. The results obtained were as follows : (1) With making the mixture lean from the rich side, the weight of combustion chamber deposit derived from the lubricant oil was increased, but that derived from gasoline was decreased. (2) The contribution ratio of gasoline to the total weight of deposit was below 5% in the lean side, however, that was 10 to 30% in the rich side. (3) Most of the combustion chamber deposit derived from the lubricant oil was formed from the detergent dispersant added to the lubricant oil, and the metallic detergent formed a larger amount of combustion chamber deposit than the ashless dispersant.

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In this paper, we prepared magnetic boards made with bamboo powder or magnetic fluid impregnated bamboo powder and Mn-Zn ferrite powder and investigated their electromagnetic characteristics in GHz frequency, wave absorption characteristics, and bending strength. The results from our studies, the magnetic board made with bamboo powder and magnetic fluid impregnated bamboo powder showed better electromagnetic characteristics in GHz frequency, wave absorption characteristics, and bending strength compared with the magnetic wood board.

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