A mammography apparatus comprises a stand (1) with a vertically adjustable carriage (2), supporting a shaft (4) rotatable about a horizontal axis (4a). An X-ray appliance (3) is mounted to an annular frame (9), rotatable about an axis (12) normal to the axis (4a) of the shaft (4). The frame (9) comprises an inner annular or segmental member (10) that rolls on a similar outer member (11) which is m...

Dicarboxylic acid bis-(3,5-dicarbomoyl-2,4,6-triiodoanilides) of general formula I wherein the amide radicals -CONR1R2 and -CONR3R4 are different from one another and R1 is a hydrogen, a lower alkyl radical or R2, R2 is a straight-chain or branched-chain monohydroxy or polyhydroxy alkyl radical, R3 is hydrogen, a lower alkyl radical or R4, R4 is a straight-chain or branched-chain monohyd...

Procédé de stabilisation des conditions de découpage d'un découpoir rotatif et dispositif pour la mise en oeuvre de ce procédé.

Le découpoir rotatif 1 est porté à une température constante, au moins égale à celle qu'il prend normalement en service, par des cartouches chauffantes 56, 57 et des sondes thermométriques 58 incorporées notamment dans l'outil rotatif de découpage 2 et dans le co...

PURPOSE:To hold the secrecy of a password number by permitting an operator to generate fist process data from random numbers and a data process rule which he previously knows and to generate second process data from the data process rule corresponding to information and the random numbers and judging first process data to be the accurate personal identification number if both have agreed. CONSTITU...

PURPOSE: To simplify a book keeping system and to shorten the processing time by providing a control unit, a work memory, and a storage memory in which a phase road network is stored at least in the form of one (n)-cell table. CONSTITUTION: This device is equipped with a bus 1, to which a data processing unit 2, the work memory RAM 3, and the background (storage) memory 4 are connected. Then the w...

PURPOSE:To obtain an oxide superconductor being free from any secular change of superconductive characteristic by coating the surface of conductor with an anti-reduction film. CONSTITUTION:Manufactured is oxide superconductive fine powder 21 containing such as Y1Ba2Cu3O5-7 and an anti-reduction film 22 made of such as a silver or the like is applied on the fine powder 21 immediately after manufact...

PURPOSE:To obtain a wire material with excellent flexibility and a critical current density being almost free from changing due to a process of bending by densely filling ceramics fibers having a superconductive characteristic under the condition that the longitudinal directions thereof are uniformly aligned in the longitudinal direction of a metallic tube. CONSTITUTION:Powder of respective raw ma...

PURPOSE:To improve bonding strength of a coating film and to prevent chemical reaction of the coating film with a basic material made of insulation material and short-circuit of a current by providing basic materials which are respectively made of Cu and Ni, between the coating film made of superconducting material and the basic materials. CONSTITUTION:A Ml2O3 basic material 1 is set in a vacuum v...

PURPOSE:To improve heat radiation efficiency when a current is supplied and to prevent short-circuit of the current when superposition is arranged by using a coating film made of a superconducting material, Cu material and a basic material made of an insulation material. CONSTITUTION:Al2O3 basic material 1 is set in a vacuum vessel 6 of a plasma spray coating device 4, a mixture gas is continuousl...

PURPOSE:To obtain a superconducting material where no short-circuit occurs upon energization due to an insulating layer by forming several sets of superposed layers composed of a superconducting layer made of composite oxide including CuxOy radical and a metal layer formed on the superconducting layer, on the metal basic layers. CONSTITUTION:A square cupper basic material 1 is arranged in a vacuum...

PURPOSE:To enable generation of line of magnetic force and to obtain satisfac tory superconducting property by forming a rod-like or cyrindrical basic material and a spiral coating film of composite oxide superconducting material on the outer peripheral surface of the basic material. CONSTITUTION:A rod-like basic material 1 is arranged on a shielding plate 12 in a vacuum vessel 5 of a razor vapor ...

PURPOSE:To stabilize the superconducting property of a superconducting wire, to obtain a required strength and flexibility, and to facilitate the production thereof by using a spiral coating film made of a composite oxide superconducting material on the outer peripheral surface of a metal wire. CONSTITUTION:A metal wire 5 is set on a rewinding reel 26 in a vacuum chamber 7 of a razor vapor deposit...

PURPOSE:To rise critical temperature of a superconducting material by forming a lamination film of antiferromagnetic/superconducting material. CONSTITUTION:N2 gas is mixed in Ar gas when sputtering Nb by using Nb and Ni-Mn as targets while only Ar gas is used when Ni-Mn is sputtered. A Ni-Mn/Nb-N lamination film having a thickness of about 100Angstrom and 100Angstrom respectively is obtained by ...

PURPOSE:To dispence with thermal process after a film is formed so as to obtain a high critical temperature by forming a vapor deposition layer on a basic plate, and by oxidizing the vapor deposition layer in an oxidizing gas atmosphere. CONSTITUTION:Chambers 14, 15 are partitioned by a partitioning wall 9 having an opening 11 in a vacuum chamber 1, in which chamber 14 a vapor deposition source 8 ...

PURPOSE:To obtain a superconducting member coating film having perovskite type cristallized structure arranged stably in a C axis in the film thickness direction by providing ceramics superconducting coating film on the outside of a core material, heat-retaining it in oxygen atmosphere, and thereafter rapidly cooling it. CONSTITUTION:A core material using a single or multi-wire made of a nonferrom...

PURPOSE:To perform a complete coating of superconducting ceramics without performing welding-connection by forming a letter U-shaped pipe, charging superconducting pulverized body and machining the opening of the U-shaped pipe, and then forming a second coat pipe by means of a second extruder in order, thereby obtaining a continuous superconducting wire. CONSTITUTION:A first and a second continuou...