摘要:
A simulation apparatus includes a discrete events simulation section to perform a discrete type simulation of components of a configured model as defined based on attribute information that is information on parts of the components of the defined configured model and connection information showing a connectional relationship among the components of the defined configured model; and a soft error rate computation processing section to compute a soft error rate of the defined configured model based on the simulation result of the discrete events simulation section and data on soft error rates in the attribute information.
摘要:
A simulation apparatus includes a discrete events simulation section to perform a discrete type simulation of components of a configured model as defined based on attribute information that is information on parts of the components of the defined configured model and connection information showing a connectional relationship among the components of the defined configured model; and a soft error rate computation processing section to compute a soft error rate of the defined configured model based on the simulation result of the discrete events simulation section and data on soft error rates in the attribute information.
摘要:
A failure caused by a soft-error including MNU, of an electronic apparatus is prevented, while suppressing increase of a mounting area, power consumption, and processing time. The electronic apparatus stores data indicating the state of a flip-flop included in a sequential logic circuit within an arithmetic unit, each time when execution is performed on a check point provided for every predetermined number of instructions. When a symptom of a soft-error is detected, the apparatus sets the state of the flip-flop included in the sequential logic circuit within the arithmetic unit, based on the data stored after execution of the instruction at the immediately preceding check point, and restarts execution from the next instruction, being subsequent to the instruction associated with the immediately preceding check point.
摘要:
A failure caused by a soft-error including MNU, of an electronic apparatus is prevented, while suppressing increase of a mounting area, power consumption, and processing time. The electronic apparatus stores data indicating the state of a flip-flop included in a sequential logic circuit within an arithmetic unit, each time when execution is performed on a check point provided for every predetermined number of instructions. When a symptom of a soft-error is detected, the apparatus sets the state of the flip-flop included in the sequential logic circuit within the arithmetic unit, based on the data stored after execution of the instruction at the immediately preceding check point, and restarts execution from the next instruction, being subsequent to the instruction associated with the immediately preceding check point.
摘要:
A logic block group 120 having at least one set including a logic block having at least one logic circuit and a sequential circuit that inputs the output of the logic block is arranged in an irradiation region 110 of a high-energy particle irradiation device, and subjected to irradiation with high-energy particles. A control section 101 calculates the error rate of the logic circuit from the value obtained by subtracting the number of errors of the sequential circuit when the logic block of the logic block group 120 is bypassed, from the number of errors of the sequential circuit and the logic block of the logic block group 120.
摘要:
On a sample base 1 disposed within a vacuum container is provided a scale S(1). . . S(N), where in an actual distance of the sample base is monitored by observing the scale trough an optical system for exclusive use thereof, which can catch it within a field of view. With this, it is possible to position a foreign body, as a target of analysis, which is analyzed or observed by a first analysis/observation device, so that it necessarily falls within a field of view of a second analysis/observation device, thereby realizing quick and automatic delivery of the samples when observing the foreign body on the sample by plural numbers of the devices.
摘要:
This invention concerns a plant diagnosis apparatus which comprises a first detecting unit for detecting a state of devices constituting a circulating system in which a fluid circulates and a second detecting unit for detecting a quality of the above-mentioned circulating fluid or a quality of the atmosphere surrounding the above-mentioned circulating system, and a unit for diagnosing the circulating system by output of the first and second detecting units, and therefore can diagnose anomaly of facilities such as a nuclear power plant with high reliability and rapidity.
摘要:
Spectrum data of white neutrons having different spectrum shapes, and SEE counts obtained by a white neutron method using this multiple spectrum data, are stored. A computing section reads out the spectrum data, divides the data into energy groups, and calculates and stores a total flux of each energy group. Furthermore, the computing section reads out the SEE counts with respect to each of the spectrum data and the total flux of each energy group, substitutes the SEE counts and the total flux into a simultaneous equation, and calculates the SEE cross section for each of the energy groups. Subsequently, the computing section calculates parameters which determine a formula of the approximate function of the SEE cross section as a function of energy, so that computed values of error counts obtained by integration of multiple spectra and the approximate function sufficiently match the actual measured values thereof.
摘要:
Two dissolved gas components in sample water, for example, oxygen and hydrogen in core water, are readily quantitatively determined in one and same membrane-type oxygen meter by using a membrane producing an overlapped potential region where a potential region for an oxidation limiting current plateau is overlapped with that for a reduction limiting current plateau between two dissolved gas components, and applying to between a pair of an electrode and a counter-electrode a more positive potential than the equilibrium potential for oxidation-reduction reaction of one of the two dissolved gas components principally, thereby measuring a current generated between the electrodes, and a more negative potential than the equilibrium potential for oxidation-reduction reaction of the other dissolved gas component, when desired, thereby measuring a current generated between the electrodes, and quantitatively determining a concentration of the first dissolved gas component from the latter current quantity and quantitatively determining a concentration of the other dissolved gas component from a difference between the said two current quantities.
摘要:
A plurality of sampling tubes are connected with a selector valve and the selector valve selects one of the sampling tubes so that the sample gas is lead through the selected sampling tube and a pipe way downstream of the selector valve to a leakage detection system. The pipe way is provided with a gas flushing section for flushing with high pressure gas and the gas flushing operation is performed before each change-over of the selector valve. The flow of sucked gas is kept constant by providing a gas flow control device downstream of the leakage detection section. A pressure sensor is provided for the pipe way leading to the detection section, to detect the gas pressure in the pipe way and the output of the pressure sensor is used to detect an abnormality occurring in the detection section inclusive of the pipe way thereto and also to correct the output of the pressure detector in the detection section.