Abstract: A parallel comparator for performing a parallel and high-speed processing for collation of partial character strings which are partially taken out of a plurality of character strings of interest to be searched out with a character string to be searched in which document data to be searched is arranged sequentially from a leading character, is provided in a front stage of an automaton executing device. Only when a part of the character string to be searched coincides with the partial character string set in the comparator, the collation of the remaining portion of the character string to be searched is performed by the automaton executing device. Also, it is possible to set "don't care" in which a character at any position in the partial character string is ignored at the time of comparison by the comparator and to set a negation condition in which the comparison by the comparator is made taking the negation of a character at any position in the partial character string.

Abstract: In a document information system and a method for realizing such a system, document data are transferred and displayed at a high speed. In response to an operation made from a terminal apparatus, the document data which have been stored via communication apparatus into a data storage apparatus are read out, and the read document data are temporarily stored before being transmitted by employing the communication apparatus. In the terminal apparatus, the received document data are temporarily stored as display data, and additionally the display data are swapped to a secondary storage device in such a case that a total amount of the temporarily stored data exceeds a predetermined capacity. Then, the display data may be transferred from either the terminal apparatus, or the secondary storage device to a display buffer and then may be displayed in a unit of representation.

Abstract: This invention relates to an automation system for nuclear power plants. This system comprises operation plan making means, supervisory control means, and control means for controlling controlled objects. The operation plan making means makes a new operation plan to restore a normal operating condition which existed before the plant condition deviated from the normal operation range. The supervisory control means outputs control commands according to an operation plan under abnormal condition when the plant operating condition deviates from the normal operation range. Furthermore, the supervisory control means outputs control commands according a new operation plan prepared by the operation plan making means after an operation according to an operation plan under abnormal condition has been finished. The control means for controlling controlled objects controls the controlled objects according to control commands output from the supervisory control means.

Abstract: An intelligent education and simulation system which is capable of executing an optimized follow-up reeducation to the learner reflecting his/her idiosyncrasy toward understanding in learning. The intelligent education and simulation system has an execution instruction to execute a curriculum comprising a plurality of instruction courses regarding the subject teaching of an educational object and its simulation-based instruction. According to this execution instruction, intelligent computer assisted instruction of the subject teaching and the simulation-based instruction are implemented. The degree of understanding of these instructions by the learner is evaluated, and according to the degree of understanding thus comprehended, a pertinent follow-up instruction course(s) is chosen for reeducation. In this way, a pertinent reeducation instruction course(s) optimized for each learner is capable of being selected, and the time required for reeducation of the learner is minimized.

Abstract: A character stream search system using an FSA for determining at a time whether or not a plurality of character streams as search objects exist in a search character stream which undergoes a search operation and which comprises a plurality of characters expressed with codes. In the system, a collation is conducted between the search character stream and a search object character. In a case where there exists a matched search object character as a result of the collation, a state transition is carried out to a predetermined state indicated by the FSA. In a case where there does not exist a matched search object character, a failure processing to effect a state transition to a transition destination which is determined in association with the configuration of the FSA. The failure processing is completed at a count which is a predetermined upper-limit value for each character undergone the search operation.

Abstract: An information search terminal apparatus and information search system for performing information search by using a variety of windows assure high manipulatability for the user by making available information of the results of searches performed in the past and the current system state.

Abstract: A method and apparatus for making document information search and a magnetic disk unit to be used for realizing the method and apparatus. In the document information search method, in performing document search with respect to a desired subject key word, two stages of presearch are carried out. In a first stage of presearch (step 402), a character component table (500) in which existence of character codes for every document is stated with respect to all the character codes contained in the group of document text data of stored documents is generated, and the character component table is searched for all the character codes constituting a desiredly designated search subject key word to thereby extract all the documents each containing all the character codes constituting the search subject key word.

Abstract: A compact character string retrieving system capable of producing correctly the result of matching without omission even upon occurrence of multiple matching in which a plurality of search terms are matched for one character string by a finite automation. A destination state for transition brought about by a trailing character of the search term is newly created instead of an initial state. A transition table storage stores the destination state. On the basis of the source state number and a specified pattern character code, the destination state number is read out from the state transition table storage. When the state number read out represents the destination state of the transition brought about by the trailing character of the specified pattern character string, an identifier thereof is outputted. The identifiers of the search terms matched are each represented by one bit information, and a group of corresponding flags is stored in one slot. Multiple matching can be performed without omission.

Abstract: A range-conditional character string retrieving method and system capable of performing retrieval of a numerical value from a character string at an increased speed by shortening the time taken for generation of finite automaton, range condition retrieval for a character string containing admixedly numeric characters and non-numeric characters such as alphabetic letters and highly intelligent retrieval of a numerical value with designation of preceding and succeeding characters. Given range condition is partitioned in accordance with difference in the digit number between upper and lower limit values, whereon retrieval is performed in each of partitioned ranges in parallel. When a finite automaton transits from a predetermined state to at least two state in dependence on the result of collation of a character string subjected to retrieval, conditions for the state transitions are designated in terms of corresponding codes.

Abstract: In associative memory device, a search key is stored in the first storage element and a storage key is stored in the second storage elements, respectively via a first data bus. The search key is supplied to the comparator via a second data bus, and the storage key stored in the second storage element is supplied to the comparator. The comparator compares the search key with the storage key. When the storage key is consistent with the search key, the comparator delivers as the associative operation results a comparison consistency output signal to a priority encoder circuit which outputs code information having a limited bit length. This code information is transferred to CPU via a selector circuit. If the comparator delivers a comparison inconsistency output signal, this signal is directly passed to CPU via the priority encoder circuit, so that the contents of the first storage element is rewritten.

Abstract: A method for joining a structural member made of a synthetic resin such as fiber reinforced plastic (FRP) with a further synthetic resin or other structural member. The method is effective when using synthetic resin members instead of conventional lumber or steel members in a main framework of a cooling tower. FRP members increase the corrosion resistance and simplify the assembly of such towers.

Abstract: A character stream search system using an FSA for determining at a time whether or not a plurality of character streams as search objects exist in a search character stream which undergoes a search operation and which comprises a plurality of characters expressed with codes. In the system, a collation is conducted between the search character stream and a search object character. In a case where there exists a matched search object character as a result of the collation, a state transition is carried out of a predetermined state indicated by the FSA. In a case where there does not exist a matched search object character, a failure processing to effect a state transition to a transistion destination which is determined in association with the configuration of the FSA. The following processing is completed at a count which is a predetermined upper-limit value for each character undergone the search operation.

Abstract: In associative memory device, a search key is stored in the first storage element and a storage key is stored in the second storage elements, respectively via a first data bus. The search key is supplied to the comparator via a second data bus, and the storage key stored in the second storage element is supplied to the comparator. The comparator compares the search key with the storage key. When the storage key is consistent with the search key, the comparator delivers as the associative operation results a comparison consistency output signal to a priority encoder circuit which outputs code information having a limited bit length. This code information is transferred to CPU via a selector circuit. If the comparator delivers a comparison inconsistency output signal, this signal is directly passed to CPU via the priority encoder circuit, so that the contents of the first storage element is rewritten.

Abstract: A multiprocessor system includes processor units connected physically in one-dimensional fashion along a ring bus located at the node of each processor element and associated local memory, so that various system operating modes are possible. The ring bus is used for inter-processor data transfer, with the address and read/write signals to each local memory being supplied from the processor element (by the program). Sychronization between the data flow on the ring bus and the processor operation is made automatic by the innovated method of inter-processor connection, which includes flag latches in the ring bus, whereby the system accomplishes extremely high-speed processing.

Abstract: In a light water moderation type nuclear reactor with the once-through method, the reactor core is divided into a central area and a peripheral area by a partition member, a first fuel assembly is arranged in the central area (high conversion area) and a second fuel assembly is arranged in the peripheral area. The ratio (r.sub.H/U) of the number of hydrogen atoms to that of uranium atoms in the central area is smaller than that of the ratio in the peripheral area and the second fuel assembly in the peripheral area is formed of fuel rods of the first fuel assembly having been previously burned in the central area and moved into the peripheral area. The plutonium production increases and uranium consumption is reduced during the first half of the lifetime of the fuel rods in the high conversion area with the take-up burn up increasing during the second half of the lifetime of the fuel rods in the burner area.

Abstract: A method for controlling a multi-joint robot having redundant operating joints, wherein joint velocities are calculated for non-redundant joints with redundant joints being fixed for each of at least a portion of the combinations of the non-redundant joints excluding redundant joints capable of attaining the movement of the robot end at a command velocity specified to the robot, by inverse-coordinate-transformation from the spatial coordinate to a joint coordinate inherent to the robot, on the basis of joint angles detected by an encoder mounted on the joints of the robot and the joint velocities are averaged or nearly averaged to obtain the average value or nearly average value as a desired joint velocity for the joints. The desired joint velocity is supplied to a velocity control unit of the robot as a controlled variable.

Abstract: In a frequency spectrum variation monitoring system, the values of two parameters including the root mean square (RMS) value of each of the output signals from various detectors disposed at several locations in a nuclear power plant and the RMS value of the time-differentiated version of the detector output signal are calculated both at the normal state and at any time instant. These parameter values are used to obtain the RMS value of the deviation of the frequency spectrum of the detector output signal from the normal state and the average frequency weighted with that frequency spectrum deviation, so that the geometrical variation in frequency spectrum of the detector output signal may be monitored.

Abstract: Apparatus for inspecting pipes in a plant, comprising an elongate inspection head portion which is provided with an optical system for receiving an inspection image by approaching an inner surface of a pipe being an object to-be-inspected; at least one proximity sensor which is disposed in the inspection head portion in order to detect a relative distance between the inspection head portion and the proximate object; a positioning mechanism which consists of a plurality of driving shafts for advancing or retreating, rotating, and revolving the inspection head portion; a control device which is capable of programmed operation and which drives and controls the positioning mechanism in a predetermined operation sequence programmed in advance; a data storage device which stores positional data of the respective driving shafts of the positioning mechanism; and an image processor which is disposed at a position remote from the inspection head portion and which reconstructs the inspection image from video signals; th

Abstract: A joint mechanism of a manipulator, according to the present invention, consists of a first joint having its rotating shaft aligned with the Z-axis in the X-Y-Z Cartesian coordinate system established at a desired position in a working space, a second joint connected to the rotating shaft of the first joint and having its rotating shaft positioned within the X-Y coordinate plane, a third joint, connected to the rotating shaft of the second joint and having its rotating shaft aligned with the vector passing through the origin of the Cartesian coordinate system, and an arm assembly connected to the rotating shaft of the third joint and comprising a link mechanism which is driven so that a wrist connected to said arm assembly may be always moved on the prolongation line of the vector, to thereby provide a simplified joint mechanism of a manipulator having a redundant degree of freedom of the posture completely independent to the position of the wrist.

Abstract: Automatic assembling method to screw a nut on a bolt comprises steps of detecting a position of a bolt which is maintained by a supporter, and of positioning in rough a nut thereto by a positioning mechanism, in which the nut is supported by an attachment coupled with a motor through an elastic mechanism, which is capable of deformation in both directions of an axis and a radius. The nut, then is movably pressed against the bolt and rotated by the motor. When the nut is not screwed on the bolt, the positioning mechanism changes its position in two dimensions so that the nut is maintained movably pressed against the bolt and the nut is rotated again. The changing position of the positioning mechanism will be continued until the nut is screwed on the bolt.