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The stabilization of a guiding catheter is a very important factor for successful endovascular treatment. However, it is sometimes difficult to obtain sufficient stabilization because of the tortuosity of the approach route. A Goose Neck Snare is useful for the retrieval of intravascular foreign bodies and can be used to hold the guiding catheter. We describe five cases of endovascular treatment performed while using the Goose Neck Snare via the brachial artery to hold the guiding catheter. We discuss the utility of this strategy.

Three dimensional deflections of a concrete arch dam due to solar heat in a daytime on March, July, and November were measured by the system consisting of two sets of theodolite with the launcher of a laser and the device which receives the laser. The thermal analysis using finite element method has been conducted to compare the measured deflections and estimate the behavior of arch dam by solar heat. It has been cleared that the obtained results from the thermal analysis estimate the behavior of all over the concrete arch dam with enough accuracy.

In this study the system to measure three-dimensional static and dynamic deflection with 0.5mm accuracy from the distance of 50m to 150m away using a laser beam has been developed. The measuring system consists of two sets of theodolite with the launcher of a laser and the device which receives the laser. The system enables to measure the deflection along z axis as well as x and y axes. The deflection of a concrete arch dam caused by solar heat during a daytime is measured by this system, and the obtained results were discussed.

本研究は，熱環境および風環境からみた環境計画手法の確立を目指し，東京農業大学世田谷キャンパスをケーススタディとして，夏季の気象観測から冷涼な緑地を明らかにし，さらに3次元GIS及びCFDによる風のシミュレーションを行うことで風の道を可視化し，熱環境および風環境の面から緑地環境を評価するとともに，世田谷キャンパスの環境評価と環境計画への応用を試みた。その結果，次のことが明らかになった。1）夏季日中に馬事公苑をはじめケヤキ並木やキャンパス内のメタセコイヤの樹林地が約2～3℃の冷涼な緑地であること。2）夏季日中の南風を正門の樹木群が緩和していること。ケヤキ並木からの南風がキャンパス内にもたらされていないと推察されたこと。3）冬季日中の北北西の風が18号館から剥離しキャンパス内で強風となること。4）新研究棟等のキャンパス再整備後，夏季日中の南風が新研究棟から剥離した強い風となること。冬季日中の北北西の風が新研究棟北側で強まること。5）熱環境および風環境解析に基づく新たな環境計画案を評価できることを実証した。本研究で扱ったリモートセンシングによる熱環境のシミュレーション，並びにCFDによる風環境のシミュレーションは，環境科学的アプローチによる環境計画手法を向上させるとともに，意思決定，合意形成のツールとして有用であるといえる。, This study aims to demonstrate how simulated thermal and wind dynamics can be integrated into urban environmental planning. Three dimensional GIS and CFD simulations were employed to investigate the effects of green space and wind flows on urban cooling, using a plan of Setagaya campus of TUA as a case study. We evaluated the current configuration of the campus in relation to its thermal environment and wind conditions and showed that 1) summer daytime temperatures in a green space area for Bajikouen, an avenue of Zelkova and a grove of Metasequoia were 2-3 degrees Celsius lower than urban areas within the campus ; 2) trees near the main gate help mitigate southerly wind speeds, and a campus building along Setagaya Street shelters the Bajikouen area and the Zalkova avenue from the same southerly wind ; 3) north-westerly winds are split after striking building No. 18, resulting in high winter daytime wind speeds ; 4) split wind flows from the south, striking a newly constructed research building, resulted in high summer daytime winds. Finally we evaluated proposed campus redevelopment plans on the basis of thermal and wind dynamics, demonstrating how the simulation of the thermal environment from remotely sensed data and of wind dynamics through CFD can improve environmental planning in urban areas to the benefit of civil society.