## Journal of the Franklin Institute, Volume 266Pergamon Press, 1958 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |

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**fluid**pressure Eh pRo R ( x , t ) = radius of the tube R。 unstressed radius Ro = P = ρα * = axial position along tube axis Lo = a characteristic length u = mean**fluid**velocity t = time in seconds P =**fluid**pressure p = mass density of ...Page 229

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**fluid**systems it is necessary to know the transient tempera- ture behavior of a**fluid**volume in the system when the system is sub- jected to a change in operating conditions . A nuclear reactor vessel , for example , may contain large ...Page 231

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**fluid**are paramount in the mix- ing process , then the diffusion properties of the electrolyte may be neglected in ...**fluid**at the electrodes . This can be minimized by good design of the cell so as to allow free passage of the**fluid**...### Contents

JULY 1958 No | 1 |

Effects of Unipolar Air Ions on Microorganisms and on Evaporation | 9 |

Plastics in the Space Age JOHN H Lux | 21 |

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acceleration accelerometer analysis angle applied Atomic attacking moments axis Bell Telephone Laboratories Benjamin Franklin Parkway Chairman chapter coefficients Committee components conjugate frames constant diagrams difference equations discussion Donald Wills Douglas Earth effect electrical electronic energy Engineering error ferrocene field flight fluid force Franklin Institute Franklin Institute Laboratories function gyro gyroscope heat hinge rotations inertial guidance inertial guidance system initial instrument LEPAGE linear load M₁ mass material mathematical mechanism Medal method momentum navigation nuclear obtained operation paper particles perturbation Phila Philadelphia physical plastic platform position Poynting theorem present Price problem proper frame radius range reactor reference rest mass rocket Science shown in Fig solution space techniques temperature theory tion torque trajectory transformation tube velocity voltage York z-transform zero Δφ