Abstract:
An apparatus for measuring nuclear reactor power distribution comprises a Fourier coefficient calculation means and a transformation means, whereby Fourier coefficients of neutron detector outputs are transformed into Fourier coefficients of integrated values of the reactor power on each interval, and hence conditions required of data for initial calibration are made less severe and the initial calibration is enabled to be performed much easier. The apparatus further comprises an abnormal data deletion means, whereby detection and deletion of abnormal data are made easy so that the apparatus performs a stable operation with high accuracy.
Abstract:
A radiation measuring apparatus capable of producing pulses whose number depends on measured radiation energy and in which the number of pulse height discriminators outputting the pulses is determined by pulse heights or the pulses. The invention makes it possible to compensate sensitivity characteristics of the apparatus against the radiation energy by weighing the number of pulses according to the radiation energy.
Abstract:
Pharmaceutical preparation containing omeprazole together with an alkaline reacting compound or an alkaline salt of omeprazole optionally together with an alkaline compound as the core material, one or more subcoating layers comprising inert reacting compounds which are soluble or rapidly disintegrating in water, or polymeric, water soluble filmforming compounds, optionally containing pH-buffering alkaline compounds and an enteric coating as well as a process for the preparation thereof and the use in the treatment of gastrointestinal diseases.
Abstract:
The disclosed meter comprises a pulse shaper circuit for forming each input pulse into a voltage pulse having a predetermined pulsewidth, a level control circuit connected to the pulse shaper circuit to produce a voltage including a dc component providing a measure of the frequency of the input pulses, and a low-pass filter dc coupled to the level control circuit. The filter consists of a series resistor, a parallel capacitor and a series feedback type operational amplifier to extract the dc component from the voltage from the level control circuit.
Abstract:
According to one embodiment, a method of manufacturing a semiconductor device including forming a first SiGe layer on an insulating film, processing the first SiGe layer to have an island shape which includes a first region and a second region, the first region having a width larger than a width of the second region in a direction perpendicular to a connecting direction of the second region, subjecting the first SiGe layer having the island shape to thermal oxidation, thereby increasing Ge composition of the first and second region, and setting the Ge composition of the second region to be higher than the Ge composition of the first region, melting the second region having the increased Ge composition by heat treatment, and recrystallizing the melted second region from an interface between the first and second region.
Abstract:
A sheet excellent in antistatic properties, transparency and impact strength, and a formed product thereof. The sheet is made of a resin composition comprising an elastomeric styrene polymer and component (B) in a mass ratio of from 98/2 to 80/20, wherein the elastomeric styrene polymer comprises styrene monomer units, (meth)acrylate monomer units, etc., and component (B) comprises (B1) an amino carboxylic acid having at least 6 carbon atoms, a lactam, or a salt of a diamine with a carboxylic acid, having at least 6 carbon atoms, (B2) at least one diol compound and (B3) a polyether ester amide having a C?4-20#191 dicarboxylic acid copolymerized.
Abstract:
When memory access is to be accomplished in a parallel processing system, interfacing between networks is simplified by generating network control information for the return of read out data in the networks and embedding it into requests. For this purpose, flip-flops for identifying input port numbers are provided in each network through which requests are to be transferred, the identified input numbers are embedded into the requests to be transferred and, when returning data, this information is used as network switching control information. Furthermore, the outputs of arbiters in the networks through which requests are transferred are used as input port numbers.
Abstract:
A pulse shaping filter for use in pulse height analysis, wherein a plurality of semi-gaussian filters of different time constants are provided, which generate a plurality of signals of semi-gaussian shape with different pulse widths from one input signal, and added the plurality of signals after delaying them in a manner that the signal of the semi-gaussian filter of the smaller time constant is delayed longer, thereby to obtain a signal of approximately cusp shaping.
Abstract:
In a nuclear reactor wherein a plurality of neutron detectors are arranged vertically and at equal azimuth angles around a core of the nuclear reactor, thereby to measure a vertical power profile with a core of the reactor core, the improvement comprising dividing the core into sectors at respective azimuth angles confronting the neutron detectors, usingg the output signal of the partial detectors included in each of the neutron detectors for measuring a vertical reactor power profile of the azimuthal sector of the core confronting the corresponding neutron detector, and averaging the vertical profiles of the respective azimuthal parts with respect to the azimuth angles to measure the vertical reactor power profile of the reactor.
Abstract:
An apochromat type objective lenses, which is applied to an astronomical telescope; a telephoto lens for cameras or the like, comprising a semiapochromatic first lens system synthesized lens composed of two lenses in one group consisting of a convex lens and a concave lens, and an achromatic second lens system synthesized lens composed of two lenses in one group consisting of a concave lens and a convex lens, which is arranged in a spaced apart relation behind the semiapochromatic first lens system; the first and second lens systems being fulfilled with the condition below: ##EQU1## where, f, f: the focal length of the first and second lens systems,K, K: the proportion of the residual secondary chromatic aberration of the first and second lens systems, andL: the mutual spacing between respective lens systems.