In this study, an electro-magnetic force characteristic analysis of a proportional solenoid with 60mm square stator for operating oil hydraulic proportional-type valve was performed. This analysis was accomplished by the finite element method in three-dimensional static magnetic field. And then, relation of electro-magnetic force for armature-stator gap and relation of electro-magnetic force for coil current were examined. Furthermore, analyzed value was compared with measured value about above-mentioned electro-magnetic force characteristics. As a result, it became clear that approximately constant force of 120N was obtained in a range from 2mm to 7mm of the gap. A proportion range of the electro-magnetic force for coil current was changed by gap length between armature and stator. However, the proportion range was from 1.5A to 3A for rated current 1A. In addition, these characteristics agreed with analysis value on measured value well, and the propriety of the finite element method analysis in this study became clear.

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The method of measurement of three dimensional turbulent velocity by a rotating single slant hot-wire probe was examined in the annular shear layers of an axisymmetric jet. Two types of hot-wire probe were used. At the shear layers of a jet, the peak of a turbulent intensity was observed. It was recognized that this method is useful.

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This paper deals with the development of auto-scraping system using a piezo-electric element. This system consists of CNC milling machine, personal computer, tool of built-in piezo-electric element actuator and color-sensor for bearing recognition. The characteristic of this system is that can be to process from milling to scraping without to take away from the milling machine table.

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The purpose of this study is to prop'bse a practical technique for damping characteristic improvement on the packed with balls. In this paper, the damping characteristics of structures packed with sand and glass particles are experimentally investigated. The effects of particle size and particle shape on the damping characteristics are examined. The effective damping capacity improvement is achieved by packed particles of small size and irregular shaped sand. Also, the generation mechanism of damping capacity is discussed by examining the collision characteristics and friction characteristics of packed particles. It is shown that the damping capacity is affected by friction coefficient between packed particles.

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A stiffening Method of existing cylindrical steel piers is studied by experimental and analytical ways. On the experimental way steel piers are stiffened by rectangular steel plates on it. On the Stiffening structures are set using the plates and local buckling points created forcibly on the pier. The part of the pier.which yields local buckling is controlled in base zone of it by this Stiffening structures and the ductility of the piers are improved with small increase the ultimate strength of it. We have been able to improve the ductility of piers by the Stiffening structures.

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本稿では、パークレー市の主要街路沿いの地区におけるエリア・プランについて調査した。加えて、アーバン・デザインに関する政策を整理し、その背景となっている考え方と特徴を抽出した。1)エリア・プランは、住民らの幅広い合意・協議を通して立案された計画である。具体的には、地区の課題を共有し、将来像を描き、それを実現していくための政策・戦略を立案したものである。2)地区の特性を維持しながら既存建築物を有効活用することにより、居住者、小売店舗やレストランの顧客増を図ることが重点課題であると位置付けている。3)その内容は、建築制限等の提案にまで踏み込んだものである。具体的には、厳格なゾーニング規制、店舗等のデザイン・ガイドラインが示されている。

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本稿では、都市空間を乗用車で移動して撮影した実写映像を用いて、我々がどのように建築物の位置を認知・把握していくのかを分析・考察した。結果は、以下のようにまとめられる。1)映像による空間体験は距離感や建築物の特徴が掴みにくい等、認知・把握に関する制約が多い。しかし、被験者は通常よりも目的意識的な学習を重ねることによって、認知・把握精度が高まっていった。2)建築物の位量認知には、その建築的特徴に加え、道路構成、看板等の手がかりとなりうる情報等が現実場面よりも一層大きく影響すると推察できた。

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アンケート調査及びデザインゲーム的手法を用いて、複合遊具を備えた公園の利用者・(幼児を同伴した保護者)意識の調査を実施した。得られた結果は、以下の通りである。1)デザインゲーム的手法は、利用者の具体的な要望を引き出す上で非常に有効である。2)幼児を監視できる位置に保護者の居場所、あるいは屋根付きベンチ等の設置を検討することが望まれる。3)保護者は複合遊具を備えた公園を魅力的であると考えているが、監視しづらい、危険性を感じる等の理由から小型遊具の設置をも要望している。

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In this study, the estimating method of the axial stress in existing concrete column non-destructively by measureing the predominant frequency is proposed. In addition, this proposed method is investigated experimentally. As a results, the predominant frequency of concrete specimen is varied by the axial stress, though the predominant frequency is influenced by water-cement raito and the length of specimen and so on. It means that the proposed method has possibility of estimating the axial stress.

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Now, in Japan, the situation which is about public library has been changing. Budgets from the administration to libraries has decreased, and there is the,administrative section that has a threaten of closure. Not only administrative one-sided 1 ibrary managing, we wish it would be thought and managed by also local residents and staff. Therefore we have paid our attention to the U.K. which advanced most in the library adminis trat ion or a 1 ibrary planning. And act ivi ty of the users group where appeared in Camden. We consider it can be useful for Japanese public library in the future. We clarified to take up 'Views from the Users Group' that the users group published in 1998. We can find what kind of thought CPLUG had for the 1 ibrary. The contents are gathered up in funds, staffing, information technology, use promotion and opening time, Provision for children, the library which will make by staff and users and administrations.

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In this paper, we discuss the influence of the bearing force distribution on aseismatic performance of traditional timber houses. In order to discuss the distribution of bearing force in each wall, Monte Carlo simulation is employed. 208 exist houses are-analyzed, and 100 analysis models are made in each house. The assumption of rigid floor and non-structural wall resistance force are also concerned. The results may be summarized as follows: the horizontal resistant forces calculated by deterministic models are the lower limit of the horizontal resistant forces of data spread models. The ratio of the maximum displacement response by data spread models over ones by deterministic model changes according to the type of an earthquake motion and its peak ground velocity.

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我々は3世代の枠組みで、ニュートリノが地球内部を通過するときのυ_e→υ_μ振動について調べる.振動確率は任意の物質密度中でP(υ_e→υ_μ) = A cosδ+B sinδ+Cのように表される。ここでδはレプトンセクターのCP位相である。我々は前の論文で導入した近似公式とα=△m^2_<21>/△m^2_<31>とs_<13>=sinθ_<13>の2次までの項を含んだ公式とを比較すろ。我々の近似公式はαとs_<13>の非摂動的な効果を含んでおり、MSW領域でその精度はかなり改善されている。さらに我々はAとBへの地球からの物質効果について調べ、他の著者によって調べられているCへの物質効果と比較する。その結果、Cの主要な3つのピークの付近で、AとBの大きさはCの大きさの数十%に及ぶことを数値計算で示す。また我々の近似公式を用いて、この結果の定性的な理解を与える。これより、多少その強さは弱められてしまうけれどもCだけでなくA,Bにも通常のMSW効果とは異なるmantle-core効果が現われることがわかる。

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円周上で長距離相互作用をする量子多体系モデルを考察する。これはSutherlandモデルと呼ばれており、近年動的相関関数の計算が厳密に計算できるなど。一番よくわかっている可積分モデルとして知られている。この論文では、このモデルの代数的な関係を求め、その表現を具体的に構成することによって、以前から知られていた波動関数とエネルギー順位が容易に再現できることを示す。

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