Abstract: A photoconductive switch comprises a first layer (1) of a first material sandwiches between two contact layers (2,3). The first layer is adapted to be conducting upon applying a voltage across said contact layers when irradiated by light (5) of an energy high enough for lifting charger carriers from the valence band to the conduction band of the first material. A first (2) of the contact layers is provided with apertures (4) for allowing light applied on the switch to reach said first layer there for making the switch conducting upon applying a voltage across the two contact layers. A thin second layer (7) is arranged on the side of the first contact layers, at least covering the surfaces of the first layer exposed through said apertures and forming an interface to said first layer in said apertures. The second layer is made of a material being able to form a well ordered interface to said first material and having the same or a larger band gap than the latter.

Abstract: A method for producing a hydroxyl-terminated (meth) acrylic polymer which comprises converting a halogen atom in a terminal structure of the general formula (1) —CH2—C(R1)(CO2R2)(X)  (1) wherein R1 is hydrogen or methyl, R2 is alkyl containing 1 to 20 carbon atoms, aryl containing 6 to 20 carbon atoms or aralkyl containing 7 to 20 carbon atoms, and X is chlorine, bromine or iodine, of a (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer using an organic halide or a halogenated sulfonyl compound as an initiator and, as a catalyst, a metal complex with a central metal selected from the elements belonging to the groups 8, 9, 10 and 11 in the periodic table, into a hydroxyl-containing substituent. The present invention can provide, in an easy and simple manner, a (meth)acrylic polymer which is hydroxyl-terminated at both ends in a high proportion and which has been difficult to produce in the prior art. It can give a cured product with good curing characteristics.

Abstract: In a plant for automatic spray application of paint through a spray nozzle (12), two parallel lines (9,10) each lead from an associated arrangement (1,2) for supplying paint to the spray nozzle. After paint has been fed through one of the lines to the spray nozzle followed by closing of a valve means (15,16) associated therewith for changing the arrangement (1, 2) supplying paint, a device (24) is adapted to feed such a volume of fluid into this line upstream of the valve means, with respect to the paint feeding direction, in the reverse direction so that the paint present in the line is pushed back into the arrangement without the fluid reaching it.

Abstract: The invention relates to an assembly using a vascular filter accommodated in an implanting sleeve from which is can be partially expelled in the case of temporary filtration use by means of a maneuvring rod to which the filter is connected in separable manner, so that, in the case of definitive use, the filter is separated therefrom, then being expelled from the sleeve. The filter may have legs in the shape of a corolla and extensions, for retaining it in place in the vessel, which naturally define a cylinder. Use in the treatment of risk of embolism.

Abstract: An end portion of each of two parts is machined and the machined end portion of the parts are arranged in facing positions to form a welding bevel extending in a longitudinal direction between the parts, whereafter a filler metal is deposited into the welding bevel. The welding bevel is a narrow bevel with side walls at an aperture angle of no more than 5° relative to the longitudinal central plane of the bevel. A nickel alloy comprising 18-32% of chromium is deposited into the welding bevel. The method is particularly suitable for joining a pressurized water nuclear reactor vessel tubing and an austenitic stainless steel primary circuit pipe.

Abstract: A process for designing CMOS integrated circuits which prevents electrostatic charges from damaging a gate of a connected transistor. Once the routing of a metallic conductors for the integrated circuit is defined, a determination is made whether or not a conductor connects to the gate of a transistor and violates an antenna rule. A metallic conductor involved in an identified violation is traced along its length for a location on an adjacent layer which is free of metallic conductors. The metallic conductor is segmented at the location providing a split conductor having spaced apart ends. Subsequent processing of the layer avoids the accumulation of excessive charge on the split conductor. The first and second segments are reconnected during processing of the adjacent metalization layer through via holes connected to the spaced apart segments.

Abstract: A valve (8) is fitted into a channel arrangement having a first inner channel (1) which extends longitudinally carrying a first fluid. An outer channel (4) encloses channel (1) and is intended for the passage of a second fluid at a lower temperature. The valve assembly has at least two valves to control flow through the outer channel (4). The outer channel (4) is made up of two. U-shaped channel portions (12,13) each extending outwardly with regard to the inner channel (1). Each of the channels (12,13) has at least one of said first valves (9) to control fluid flow and the inner channel (1) may have another valve (10) to control it's flow.

Abstract: Prismatic battery including a metal container (1) within which is arranged a non circular spiral winding (2) of at least one composite strip (10) including an anode (2a) and a cathode (2c), separated by porous separators (2b) impregnated by an electrolyte, said container (1) being sealed at its upper portion by a cover (4). The spiral winding (2) is formed around a rigid spool (20) including an upper flange (21), having the dimensions of the opening of the cavity (16), and a lower flange (22), having the inner dimensions of the bottom (15), said flanges being joined by a central neck (24) and, on either side, by two lateral necks (23, 25), said necks (23, 24, 25) delimiting two openings (26a, 26c) in the median portion of the spool (20) and a free space (27) at its periphery to accommodate the winding (2).

Abstract: A digital signal recording and reproducing apparatus includes a plurality of heads. A digital signal containing an information signal is recorded on a recording medium via heads among the heads while tracks are sequentially formed on the recording medium. The digital signal is reproduced from the recording medium via heads among the heads. A reproduced signal processing circuit operates for processing the reproduced digital signal at a changeable data processing rate to recover the information signal from the reproduced digital signal. During the recording, a speed of the heads, a speed of the recording medium, a data rate of the recording, and a number of used heads are set to changeable values respectively. The digital signal and a mode signal representative of the set values are recorded on the tracks at approximately a predetermined constant recording wavelength.

Abstract: In a procedure for the elimination of interferences of short duration, such as pulses, in a radar unit of the FMCW type, the transmitted and received signals are combined to form a useable signal. According to the procedure, the contribution to the Fourier Transform of the interferences of short duration are filtered out of the Fourier Transform in the frequency domain by an FIR filter with complex coefficients. The procedure requires no additional signal processing between sampling and applying the Fourier Transform, gives very little widening of strong contrasts in the Fourier Transform and is fast and simple to implement in a signal processor.

Abstract: A circuit for selectively controlling the slew rate of a signal on a data line. A capacitor is connected at one end to a common terminal of a power supply and to a switching circuit. The switching circuit advantageously connects the capacitor to the data line in response to a control pulse, capacitively loading the data line so that slew rate is decreased. When the control pulse assumes a different state, the capacitor is connected by the switching circuit to a terminal of a power supply, and acts as a decoupling capacitor. The dual role of the capacitor provides for efficient circuit layout by utilizing one component in two functions.

Abstract: A composition for use in making high optical contrast and UV light fluorescing dielectric material usuable in printed circuit boards, which in turn may form part of an electronic package. The composition comprises a resin, a coloring agent, and a fluorescing agent. A dielectric material is also defined that comprises a reinforcing material combined with the composition, the dielectric material forming at least one layer in combination with at least one conductive layer for the electronic package.

Abstract: The invention relates to a welding apparatus, that includes a welding machine (1), shielding gas unit (4) and a nozzle part (3), that is connected to the welding machine (1). The welding rod (L), that is led to the welding point from the shielding gas unit (4), is arranged to be melted while being protected by the shielding gas in connection with the nozzle part (3) by means of an arc achieved by influence of the supply unit (1b) for welding current. To improve fire safety of the welding occasion, the welding apparatus includes furthermore a coupling arrangement (X), that comprises furthermore organs (X2), that are arranged to interrupt at least supply of welding current to the nozzle part (3) and to lead shielding gas to the point exposed for fire or that is burning through the nozzle part (3) at an essentially increased volume flow rate in respect to the welding occasion.

Abstract: A slurry containing abrasive particles and a pH buffering component comprising at least one acid or salt thereof and at least one base is especially useful for polishing surfaces, including those used in microelectronics.

Abstract: To perform a motion picture format conversion at high speed in a motion picture converting apparatus, the apparatus comprises: input device 101 for inputting a digital image signal constituted of blocks, each block being orthogonally transformed; a frame memory 102 for storing the digital image signal; block reading device 103 for reading the blocks or a macro block from the frame memory in response to a request; region dividing section controlling device 109 for sending a read request to the block reading device; component extracting device 104 for extracting a low-frequency component alone of the captured image signal; two low-resolution frame memories 105 for storing extracted information; motion detecting device 106 for detecting a motion in accordance with the information in the low-resolution frame memories; a region dividing section 113 including macro block classifying device 107 for labeling the macro block in response to a motion detection result by the motion detecting device and label storing devi

Abstract: A horizontal support structure for a building area divided into sub-areas. The structure comprises a primary support system of girders arranged spaced apart and parallel to each other. A secondary support system of joists is arranged essentially cross-wise on top of the primary support system. The joists are selectively supported on the girders such that joists under different sub-areas are supported by different girders.

Abstract: A device for non-contacting measurement of a measuring object is provided. The device includes at least one pair of associated coils, including a transmitter coil and a receiver coil. The transmitter coil generates a time varying magnetic field. In the receiver coil, a voltage is induced. The voltage is dependent on the location of the transmitter coil, the receiver coil and a measuring region of a measuring object. The device comprises a U-shaped structure with two branches. A retaining part is arranged between these branches. The transmitter and receiver coils are fixed to the branches of the U-shaped structure and the measuring object is intended to be arranged centrally in the opening of the U-shaped structure.

Abstract: A bearing device is provided in which a contact portion between centering plates of an outer sleeve and a housing would neither be abraded nor deformed and which is superior in practicality, reduction of weight, durability and mass production even if the housing is made of synthetic resin and light in weight. The bearing device includes the housing (2) into which an outer sleeve (1) is inserted and a shaft (3) inserted into the outer sleeve (1). The housing (2) with the outer sleeve (1) is slidable in a linear relative to the shaft (3). The outer sleeve (1) has a ball endless recirculation path defined by a loading portion and a non-loading portion. Balls (5) are arranged in the ball endless recirculation path by a retainer (4). Centering plates (6) which may move finely are provided in the outer sleeve (1).

Abstract: A process for producing captopril of the following formula (1) comprising subjecting a substrate compound of the following general formula (2) to a hydrolysis reaction in aqueous medium to remove the RCO group and isolating the product compound, said hydrolysis reaction in aqueous medium being conducted in the presence of a strong acid at pH not over 1 and a reaction temperature not below 40° C.

Abstract: An apparatus and method for mixing or dissolving a particulate solid or gel in a liquid to form a solution of substantially homogeneous concentration. The apparatus includes a vessel which has a cylindrical portion integral with a large diameter end of a frustoconical portion. The vessel has a series of liquid inlets, located in a wall of the cylindrical portion and frustoconical portion, and a solution outlet formed at a small diameter end of the frustoconical portion. An elbow-shaped nozzle is connected to each of the liquid inlets, the nozzles directing liquid flow parallel to the inside surface of the vessel. The apparatus also includes a venturi adjacent the outlet in order to create a low pressure zone downstream of the venturi to suck or draw liquid or solution from the vessel.