A jet was formed by issuing 0.9 wt% water solution of fluorescent dye impulsively with velocity UN=7.2 cm/s from a round nozzle with a diameter d=17.95 mm into otherwise quiescent water. The cross section including the jet axis was visualized by scanning a laser beam. A sequence of photographs was taken with an interval of 0.25 s in a run from the start of the jet. The area of a photograph was divided into 256×256 meshes and their brightness were converted into digital values, from which the characteristics of turbulence in the jet were investigated quantitatively. The image processing developed in this work provides an effective method to analyse spacial structure of turbulence in unsteady flows.

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The authors developed a buckling-restrained brace for using steel framed houses. The buckling-restrained brace is small-sized and light-weighted with a restraining part of hard polyurethane or mortar. Conducting static and cyclic axial loading tests, elastoplastic and stiffening properties are difined. Specimens with the restraining parts of various restraining forces were fabricated. The authors considere the test data on cumulative ductility factors and cumulative plastic strain energy, and evaluate its performance.

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This paper deals with the stress concentration problem of a dissimilar elastic solid with a spherical cavity under tension. A method of solution is presented for the problem by applying Green's functions for axisymmetric problems of a dissimilar elastic solid. The Green's functions are defined as solutions to the elastic problem of a dissimilar solid subjected to axisymmetric body forces acting along a circle. The principle of the method of solution is to distribute body forces so as to satisfy boundary conditions for a spherical cavity. The problem is formulated by an integral equation with unknown body forces. Performing numerical calculations, influences of the elastic modulas of the dissimilar solid on the stress distributions on the interface and around the cavity are shown.

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The temperature difference between inner and outer races of a roller bearing becomes larger as load and rotating speed of bearing increase, and the effect of rotating speed on the temperature difference seems to be more remarkable than that of load within the allowable carrying capacity of the bearing. Then the effect of rotating speed on the temperature difference between both races has been investigated more in detail. As the result of this investigation, it is found that the temperature difference increases almost linearly with increasing rotating speed under such conditions of experiment, and that the variation of temperature difference in the different kinds of bearings or lubricants is very few. The values of the temperature difference which occur in the moderate running conditions are about 5°C, and this value of temperature difference, which has heretofore been believed generally, has been proved by this experimental research.

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甲状腺内へメルコックスを直接注入して, リンパ管のコロジオン鋳型を得, それを走査電子顕微鏡によって観察した. そのさい 次の点より リンパ管の鋳型であると判断した.
1) 円柱の口径が一定していないこと, 2) 網工状に吻合していること, 3) 盲端にはじまっていること, 4) 弁の鋳型と考えられるV字型の切れこみがあること, 5) 珠数状のふくらみのある部分が多いこと, 6) 内皮の核と細胞境界線によって つくられたと考えられる陥凹や鋸歯状の像がみられること.
この方法は種々の臓器におけるリンパ管の構造や変化を研究するのに有用であると考えられる.

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Under a light load, the operating state of rolling bearing progresses into the fluid-film lubrication from the rolling contact between rolling element and raceway according to the increase of the rotating speed. A hydrodynamical Theory of fluid-film lubrication of cylindrical roller bearing was reported before by Buche. But the viscosity change due to pressure was not taken in his theory, regardless of the viscosity changes according to the change of oil film pressure actually. Then the fluid lubrication of cylindrical roller bearing has been investigated theoretically under the consideration of relationship between viscosity and pressure in this paper. The load capacity of the bearing increases greatly by the change of viscosity due to pressure, besides the fluid friction of the bearing calculated theoretically coincides well with the frictional resistance obtained experimentally.

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We developed a software program with the aid of a personal computer, which enables the preparation of information sheets regarding drugs prescribed for out-patients by using a commercially available software package (FileMaker Pro). Guest computers can use this program simultaneously if they are connected with TCP/IP through a local area network (LAN). The program consists of two databases: one is for the drugs kept in the pharmacy (drug database) and the other is for the drugs prescribed for individual patients (patient database). The former contains information such as the name, color image, actions, usage, dosage, precautions and the main side eftects of each drug. Using a relational function with FileMaker Pro software enables the user to transfer drug information data automatically into the patient database. Data on any drug can be directly obtained from the drug database into the patient database on an information sheet by inputting the first three letters of the drug's name. This rapidly provides full information about not only the mechanism of action of any drug, but also about any possible side effects and drugs prescribed by another hospital.

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