摘要:
A method for wiring a power supply for a large-scale integrated circuit. The power supply wires define a power supply grid surrounding lattice openings with fixed longitudinal and transverse lattice dimensions. The wire width is determined based on the integrated circuit chip size, the number of function circuits to be on the integrated circuit, the electrical power requirements of the function circuits, and the fixed longitudinal and transverse lattice dimensions. Longitudinal and transverse locations of the power supply wires chips are determined based on the determined wire width and the fixed longitudinal and transverse dimensions of the lattice openings. Alternatively, the wire width may be fixed and the dimensions of the lattice openings determined based on the integrated circuit chip size, the number of function circuits, the electrical power requirements of the function circuits and that wire width. When the electrical power requirement of a function circuit is significantly larger than that of another function circuit, the wire width may be increased in the vicinity of the one function circuit. When the function circuits include a large-scale function block, a wire width around a region of the integrated circuit chip in which the large-scale block is to be disposed may be selected which results in a wire area equal to the wire area of the power supply wire that would occupy the particular region for usual function circuits.
摘要:
A semiconductor device is designed to facilitate analyzing a position and a cause of the failure of an integrated circuit adopting a polyphase clock. To this end, the semiconductor device is provided with an error detecting unit that detects that a problem of the operation occurs in the integrated circuit, a clock state holding unit that holds the information of phases in a predetermined term of a two- or more-phase clock and an output unit that outputs the information of the phases in the predetermined term of the two- or more-phase clock when the error detecting unit detects that the problem of the operation occurs in the integrated circuit.
摘要:
A system for correctly evaluating a price distribution and a risk distribution for a financial product or its derivatives introduces a probability density function generated with a Boltzmann model at a higher accuracy than the Gaussian distribution for a probability density. The system has an initial value setup unit and an evaluation condition setup unit. Initial values include at least one of price, price change rate, and the price change direction of a financial product. The evaluation conditions include at least time steps and the number of trials. The Boltzmann model analysis unit receives the initial values and the evaluation conditions, and repeats simulations of price fluctuation, based on the Boltzmann model using a Monte Carlo method. A velocity/direction distribution setup unit supplies the probability distributions of the price, price change rate, and the price change direction for the financial product to the Boltzmann model analysis unit. A random number generator for a Monte Carlo method employed in the analysis by the Boltzmann model, and an output unit displays the analysis result. A dealing system applies the financial Boltzmann model to option pricing, and reproduces the characteristics of Leptokurcity and Fat-tail by linear Boltzmann equation in order to define risk-neutral and unique probability measures. Consequently, option prices can be evaluated in a risk-neutral and unique manner, taking into account Leptokurcity and Fat-tail of a price change distribution.
摘要:
The present invention provides three optical resolution methods. The first aspect comprises the steps of adding an optically active bifunctional resolving reagent to a bifunctional compound to form a liquid material, precipitating crystals therefrom, and treating the crystals and the liquid material separately with an acidic material, a basic material, or a basic material and an acidic material, to obtain a pair of enantiomers of an optically active bifunctional compound. The second aspect comprises an optical resolution method by which one necessary enantiomer of a pair of enantiomers in an optically active bifunctional compound is exclusively obtained. The third aspect comprises a method for racemizing one unnecessary enantiomer of a pair of enantiomers in an optically active bifunctional compound which is formed by the optical resolution method of the present invention.
摘要:
In a transuranium elements transmuting reactor core in which a reactor is charged with a plurality of fuel assemblies at a core and an amount of a transuranium element to be added is controlled so as to prevent a fuel element contained in the fuel assemblies from melting, the amount of the transuranium elements to be added to the fuel element is controlled so as to keep an excess reactivity of the reactor substantially zero through an operation of the reactor. A charging density of minor actinides is set to lessen outwards of a core central portion in a core area where a plutonium content is made even. The charging density of minor actinides is set high accordingly in an area where a plutonium is enriched high at the core of a plutonium enriched area where a plutonium content varies. A transuranium elements transmuting fuel pin is formed by charging a transuranium fuel material in a fuel clad and the transuranium fuel material includes at least one of fuel materials consisting of an enriched uranium and an uranium-plutonium mixed fuel and a fertile material consisting of a natural uranium and a depleted uranium contain transuranium elements. In a transuranium elements transmuting assembly including a wrapper tube and a plurality of fuel pins enclosed in the wrapper tube, each of said fuel pin including a fuel clad. At least one part of the fuel pins are formed by charging a transuranium fuel material in the fuel clad with a transuranium fuel material inside.
摘要:
A LSI circuit having at least one combinational circuit and a latch coupled to the input side of the combinational circuit. The latch includes a switch for inhibiting the latching of either test data for testing the combinational circuit or data for a normal operation.
摘要:
5-Fluorouracil derivatives of this invention are represented by the general formula: ##STR1## wherein R indicates an alkylene group having 1-8 carbon atoms, A indicates an atomic group of --NH-- and --CO--, n is 0 or 1, and Y indicates an alkyl group having 1-10 carbon atoms, an aryl group, a heteroaryl group, a pyridinium ion having a halogen as a pair ion or an isocyanate group.These derivatives are useful as anticancer medicines and intermediates therefor.These derivatives are produced by six specified methods of this invention. A representative method is a process which comprises reacting 5-fluorouracil and an isocyanate represented by a general formula:Y--(A)n--R--NCO (VII)wherein R, A, n and Y are the same as those indicated in the formula (I).
摘要:
A data reproducing system includes: a receiver that receives streaming data via a network; a buffering device that buffers the received data; a reproducing unit that reproduces the data by reading the data from the buffering device; and a controller that controls a reproducing speed of the reproducing unit in response to excess and deficiency of an amount of buffer from a predetermined target value to maintain the amount of buffer of the buffering device at the target value.
摘要:
A remote control system includes a commander, a device to be controlled, and a relay unit. The commander transmits a start command and an end command, and a continuation command at intervals of first specific time after transmission of the start command until the end command is transmitted. The relay unit includes a control unit that causes a control signal transmission unit to start transmitting the control signal in response to receipt of the start command and that causes the control signal transmission unit to stop transmitting the control signal in response to receipt of the end command. The control unit causes the control signal transmission unit to stop transmitting the control signal when the next command is not received even after elapse of a second specific time since the command is received, the second specific time being longer than the first specific time.
摘要:
A process for producing a secondary phosphine of formula (2) ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each represent an alkyl group, a cycloalkyl group or an aryl group, each of the above groups being optionally substituted by an alkyl group, an alkoxy group, a halogen atom, a perfluoroalkyl group, an amino group or a phosphino group, which comprises reacting a phosphine halide of formula (1) ##STR2## wherein R.sup.1 and R.sup.2 are as defined above and X represents a halogen atom, with a metal selected from the metals of Groups 2 to 15 in the Periodic Table or an alloy thereof and reacting the resultant metal di-substituted phosphide with an agent for protonation.