Abstract: A system for centrifugation of samples includes at least one carrier, which is provided with a plurality of elements connected with each other by joints and having each an uptake for receiving a sample to be centrifuged, and a rotor for supporting the carrier, with the elements being arranged, in a centrifuged position of the elements, along a circle having its center lying on the rotational axis of the rotor.

Abstract: An apparatus for determining motion vectors for pixels of a current frame which includes a number of processing blocks comprises a motion estimator for providing motion vectors for the pixels in the current frame, an edge detector for detecting edge positions of an object in the current frame to produce edge position signals, a median filter for providing filtered motion vectors of the pixels, a majority detector for obtaining a first and a second majority vectors corresponding to the pixels of a processing block, a controller for generating a control signal, a vector selection block for providing an output motion vector from the first and second major vectors which yields a motion compensated processing block having a least error function, and a switch responsive to the control signal for selecting a motion vector for each processing block from the output motion vector and a motion vector of the pixel located at the center of each processing block.

Abstract: An explosive powder charge operated setting tool contains a channel (7) located between an inner piston guide (2) for a piston (1) and an outer housing part (6). At the rear end of the tool, the channel (7) continues in a carrier (3) and can be in communication with a cartridge receptacle (4) in the carrier (3). In its front region, the channel (7) is connected via a first opening (2c) in the piston guide (2) with a guide bore (2a) for the piston (1). Towards the rear end of the channel (7) there is a valve arrangement for forming a propellant gas storage space connected through the first opening (2c) to the guide bore (2a). Propellant gases within the storage space are compressed by the piston (1) driven in the setting direction and, after completion of the driving or setting procedure, serve to return the piston (1) back into its rear starting position by expansion of the storage space gases.

Abstract: There is provided an improved planar antenna, for use in satellite communication, capable of providing higher aperture efficiency, improved circular polarization and increased production tolerability. The antenna comprises a waveguide and an array of M.times.N helical antenna elements, wherein M and N are integers.

Abstract: A novel apparatus, capable of adaptively encoding an input digital audio signal, comprises a subband filtering device for receiving the input digital audio signal and filtering the received digital audio signal, on a subband-by-subband basis; a first estimator for estimating signal-to-mask ratio data, sound pressure levels and masking thresholds for the respective subbands of the digital audio signal; a second estimator for estimating perceptual entropies for the respective frames of the input digital audio signal based on the estimated signal-to-mask ratio data, sound pressure levels and masking thresholds and for deriving a mean and a standard deviation parameters for a frame group including two or more current and previous frames which corresponds to the estimated perceptual entropies; a bit allocation unit for adaptively determining bits for each of the subbands based on the estimated signal-to-mask ratio data, perceptual entropies, and mean and standard deviation parameters and for generating bit allocat

Abstract: The projection-lens driving apparatus for use in a 3-beam projector comprises an upper plate, an upper projection-lens holder, a pair of cross links, a pair of lower projection-lens holders, a guide member, and a driving means for driving the guide member. The upper and the lower projection-lens holders are fitted to the guide member in such a way that they can be driven integrally using the driving means, thereby allowing images to coincide on a screen simply, accurately and, above all, simultaneously.

Abstract: The projection-lens driving apparatus having a housing with a top and a bottom faces for use in a 3-beam projector includes an upper plate, an upper projection-lens holder, a pair of cross link, a pair of lower projection-lens holders, a guide bracket, a sliding plate, an upper guide member, a lower guide member, a timing belt, a driving means divided into a first driving means for driving the upper guide member and a second driving means for driving the lower guide member. The upper and the lower projection-lens holders is respectively fitted to the upper and the lower guide members mechanically and physically in such a way that they can be driven integrally using the driving means, thereby allowing the images to coincide on the screen accurately and, above all, simultaneously.

Abstract: A video cassette recorder is provided with a reel table driving apparatus for preventing slackness of a loaded magnetic tape in the switching of the operating mode, which comprises a pair of idlers disposed between a supply reel table and a take-up reel table rotatably mounted to a deck of the recorder, a support plate mounted to the deck for movably supporting the respective idlers, coil springs for biasing the respective idlers upward, a slide plate slidably mounted the deck for causing at least one of the idlers to selectively engage with and disengage from the supply and the take-up reel tables, and a driving mechanism for transmitting its drive force to one of the reel tables through the one of the idlers. The support plate includes a pair of generally curved slots arranged in a substantially opposite relationship with each other, which are adapted to accommodate shafts of the respective idlers therein.

Abstract: An expansion dowel is formed of an axially extending sleeve (1) with a cylindrically-shaped outside surface. A setting tool for expanding the sleeve includes an axially extending handle part (2) holding an axially extending striking part (3). The handle part (2) has an axially extending recess (2b) with a concave-shaped base in its outside surface. The axial length (L) of the recess (2b) is substantially the same as the axial length (1) of the sleeve. A clearance-free seating of the expansion dowel into the recess (2b) indicates to the tool operator that a correct expansion dowel is being used with the tool for assuring a proper expansion of the dowel.

Abstract: A spring hinge including a hinge member with a spring member mounted on the hinge member, and a housing for receiving the hinge and spring members, and having an abutment against which the spring member is supported and which insures preloading of the spring member and its retaining, together with the hinge member, in the hinge housing.

Abstract: A quantization pattern codebook is prepared by way of: merging each pair of pattern clusters into a merged pattern cluster until all combinable pairs of the pattern clusters are merged to derive a set of merged pattern clusters; calculating the rate of bit increment by subtracting the total number of quantization bits in the pair of the quantization patterns used in the merging process from the total number of quantization bits in the merged pattern cluster derived from the pair of the pattern clusters; and determining the merged pattern cluster having a minimum rate of bit increment as one of the cluster patterns to be stored in the pattern code book.

Abstract: A biaxially oriented polyester film with excellent levelling property is produced by the inventive process which comprises: (a) melt-extruding and extending biaxially a polyester resin to shape it into a film; (b) treating the film thermally under a condition that formulae (1), (2) and (3) are satisfied; and (c) relaxing the film at a temperature range of Tm-60.degree. C. to Tm-140.degree. C. during the step (b):Tm-60.degree. C.<T1<Tm-10.degree. C. (1)50<T1-T2<100 (2)5<(T1-T2)/t<25 (3)wherein:Tm represents the melting point of the film (.degree.C.),T1 represents the initial temperature for the thermal treatment of the film (.degree.C.),T2 represents the terminal temperature for the thermal treatment of the film (.degree.C.), andt represents time for the thermal treatment (sec.).

Abstract: An apparatus for palletizing unit loads including an input roller conveyor, a guide displaceable between the driven rollers of the input roller conveyor and having a plurality of stirrup-shaped elements liftable above and sinkable below the upper surface level of the rollers and having a stepped upper surface with at least two unit load supporting surfaces, a stacker located adjacent to and sidewise of the input roller conveyor, and a sliding device for shifting a unit load layer formed in the waiting area of the input roller conveyor onto the stacker; with the method of palletizing unit loads with the use of the palletizing apparatus including sequentially lifting rows of unit loads with stepped support surfaces of the stirrup-shaped element above the upper surface level of the input roller conveyor and displacing the lifted rows into the waiting area, and lowering the guide so that the unit load support surfaces are located beneath an upper surface level of the waiting area, whereby the first and second row

Abstract: For purification of liquids used for cooling and/or lubrication interspersed with metallic and/or other materials contaminations, especially for separation of rolling scale and of substances containing oil or grease from the industrial process water in open or exposed cooling circulation cycles in the smelting industry, especially in rolling mills, it is proposed to separate the coarse rolling scale by gravity sedimentation from the contaminated process water, to subsequently remove the mid-size and fine rolling scale particles from the process water prepurified in this manner by magnetic separation, to divide by flotation the thus finished clarified or purified process water into fractions containing oil concentrate, water and the finest rolling scale particles carrying little oil, the purified process water is to be used as a cooling agent, the entire rolling scale separated out of the process water is smelted in the form of sinter and the concentrate containing oil is either rejected or subjected to a wast

Abstract: A recording apparatus, for use in a video cassette recorder ("VCR") equipped with a timer recording feature is capable of eliminating an interference between a first broadcast signal selected by a VCR tuner and a second broadcast signal captured by a television ("TV") tuner. The apparatus comprises a timer recording control unit for controlling the timer recording and detecting the onset time of the timer recording to thereby generate a detection signal, a control signal generator for generating a control signal in response to the detection signal, and a switch, in response to the control signal, for decoupling a driving power from a modulation circuit and a coupling circuit included in the VCR.

Abstract: The catalytic converter has an axis and a housing having an inlet and an outlet. The housing contains hollow cylindrical catalyst means having an inner surface, an outer surface and passages for the exhaust gas which run from the inner surface to the outer surface. In a cross-section at right angles to the axis, the catalyst means surround an inner space of the catalyst means, with which space the inlet communicates and which space contains a limiting and/or guide member. This has a limiting and/or guide surface which approaches the inner surface of the catalyst means in a direction away from the inlet and distributes the exhaust gas, flowing into the inner space of the catalyst means during operation, uniformly over the passages of the catalyst means.

Abstract: A method for decoding an encoded image signal supplied in the form of a series of encoded image frames, each of the encoded image frames being divided into a multiplicity of macroblocks of pixels, each of the macroblocks having an associated half-pixel resolution motion vector which represents a translatory motion of the macroblock between a present and its preceding frames of the encoded image signal to a half-pixel accuracy, comprises: providing differential pixels of a differential macroblock in a first predetermined scanning order by performing entropy decoding, inverse quantization and inverse transformation on the pixels in each macroblock of the present frame; scanning the differential pixels so as to provide scan converted differential pixels of a scan converted differential macroblock in a second predetermined scanning order; providing half-pixel resolution pixels of a half-pixel resolution macroblock in the second predetermined scanning order by accessing, under a control of the half-pixel resolutio

Abstract: Method for intermediate cast type welding of finely pearlitized rails by pouring steels produced by the Thermit fusion process into a casting mold, which surrounds the two rail ends 13 separated from each other by an intrinsic gap L1, wherein the actual rail gap L1 is increased across the entire rail head width 14 starting on both sides of the rolling surfaces 8 of each rail end 13 in longitudinal -h and vertical -v direction by a dimension of 1/10 to 10/10 of the dimension of the intrinsic rail gap L1 to a dimension of L2.

Abstract: For fastening anchoring means, such as anchor rods, in solid accommodating materials without expansion pressure, mortar compositions are used, which consist of a hardener and a resin. To improve the strength properties, vinyl ester urethane resin is employed, which optionally can be accelerated.