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レイノルズ数が3×10[4] から1×10[5]の低レイノルズ数領域において,電磁型ミニアクチュエータを付設した対称翼型の揚力と抗力を測定した.失速が発生するような風速低下条件において,アクチュエータの稼働効果について実証実験を行った.最大揚力係数と失速角の両者ともレイノルズ数の増加とともに増大することが見出された.いずれのレイノルズ数においても,アクチュエータの稼働時の最大揚力係数と失速角は,アクチュエータの非稼働時の値より大きく,その効果はレイノルズ数が3×10[4]において最大であり,レイノルズ数の増加とともに小さくなることが分かった.また,アクチュエータの稼働は,風速低下時においても失速を回避する上で有効であることが実証され,風速低下後の揚力値は非稼働時に得られた値と同じ値になることが分かった., Lift and drag forces of a symmetric airfoil with miniature electromagnetic actuators have been measured in the low Reynolds number rage from 3x10[4] to 1x10[5]. The effect of the actuation has also been demonstrated under the condition that a wind speed has suddenly been decreased and that should have leaded to the stall. It was found that both of the coefficient of the maximum lift and the stall angle of attack increased as the Reynolds number was increased. The actuation makes the coefficient of the maximum lift and stall angle of attack larger than those in the no-actuation case for each Reynolds number treated in the present study, although its effectiveness shows the largest at Re=3x10[4] and becomes smaller as the Reynolds number is increased. Even in the case of the wind speed decrease, it was demonstrated that the actuation was effective to avoid the stall and to keep the lift equivalent to each wind speed., 抄録中の[4],[5]は上付き文字

Abstrac A lipid-coated catalytic antibody was prepared by mixing aqueous solutions of antibody and synthetic glycolipids. The lipid-coated catalytic antibody is soluble in organic solvents and showed a remarkable reactivity for hydrolysis of lipophilic esters in a buffer solution containing 20–80% DMSO (dimethyl sulfoxide). DMSO was added to solubilize the lipophilic esters and a native antibody was denatured in the same condition. Michaelis-Menten kinetics showed that the reduced reactivity of a native antibody in DMSO-buffer solutions is due to the largely deduced kcat value but not the small change of Km value.