7 results about "Restricted range" patented technology

The invention provides a full-sea-depth implosion-impact-resistant light pressure-resistant structure and a construction method thereof, and the construction method comprises the following steps: step 1, determining the minimum wall thickness of a pressure-resistant layer according to an application environment; 2, the wall thickness S1 of the pressure-resistant layer and the wall thickness S2 of the protective layer serve as design variables, and reduction of the total mass M and the near-end pressure peak P serve as optimization objectives to conduct optimization design; 3, constructing a corresponding orthogonal test combination, performing simulation calculation by adopting finite element software, generating an orthogonal test table, and outputting an optimal design variable; and 4, verifying an optimization result. According to the method, the limit range of design variables is obtained through the maximum working sea depth, the wall thickness of a pressure-resistant layer and the wall thickness of a protective layer serve as the design variables, the mass and the near-end pressure peak serve as optimization targets, and optimization and verification are conducted in combination with a simulation result; excellent wall thicknesses and proportions of the pressure-resistant layer and the protective layer can be given, and the precision is high; the method is simple and clear, the protection effect is remarkable, and the multiple effects of feasibility, safety and the like are achieved.

A controller 100 that calculates an operation quantity of an actuator 12 to move a mover 1 includes: a setter 22 that sets an instruction value to move the mover 1 to a target position; a restrictor 25 that sets a constraint condition of an instruction value for avoidance of an obstacle; a corrector 26 that corrects the instruction value to fall within a restricted range defined by the constraint condition if the instruction value is out of the restricted range; and an operation quantity calculator 28 that calculates the operation quantity based on the instruction value.

The coding device (100) includes a circuit and a memory connected to the circuit. When the circuit is in operation, it limits the number of context adaptive coding processing times and encodes blocks of an image. In the coding of the block, when no orthogonal transform is applied to the block, it is determined whether a processing condition is satisfied for a plurality of coefficient information flags respectively indicating a plurality of attributes of coefficients included in the block. When it is determined that the processing condition is satisfied, the plurality of coefficient information flags are encoded by context adaptive coding. The processing condition is such that the number of processing times obtained by adding the number of processing times to the number of coefficient information flags is within the limited range of the processing times.

A controller 100 that calculates an operation quantity of an actuator 12 to move a mover 1 includes: a setter 22 that sets an instruction value to move the mover 1 to a target position; a restrictor 25 that sets a constraint condition of an instruction value for avoidance of an obstacle; a corrector 26 that corrects the instruction value to fall within a restricted range defined by the constraint condition if the instruction value is out of the restricted range; and an operation quantity calculator 28 that calculates the operation quantity based on the instruction value.

The present application provides a video encoding method and apparatus, a video decoding method and apparatus, a device, a system, and a storage medium. The method comprises: during prediction of a current chroma block, determining a prediction mode of the current chroma block; if the prediction mode is a cross-component intra-frame prediction mode, determining a limited range of a predicted value of the current chroma block, the limited range comprising at least one of a maximum limit value and a minimum limit value of the predicted value; then determining a first predicted value of the current chroma block on the basis of the cross-component intra-frame prediction mode; and determining a second predicted value of the current chroma block on the basis of the first predicted value and the limited range.

The application discloses a kind of multi-parameter nuclear data adjustment methods of fast reactor, first, for the multiple critical measurement experiments of existing zero-power experimental device, control rod value measurement experiment and cavitation reactivity measurement experiment, the χ coefficient and IS factor of all experiments are calculated respectively, and with a certain experiment as benchmark experiment, the similarity coefficient of all experiments and benchmark experiment is calculated, according to the screening criterion corresponding to similarity coefficient, χ coefficient and IS factor, select the experiment that can be used for nuclear data adjustment, second, using the measurement results of the experiment screened out, including effective neutron multiplication factor, control rod value and cavitation reactivity, based on Bayes theorem, nuclear data is adjusted, finally, three judgment criteria are used to screen the adjusted nuclear data, and the unreasonable nuclear data is discarded or limited range, finally, the adjusted nuclear data is obtained.The more accurate nuclear data is obtained, so as to improve the core physical calculation precision and confidence of fast reactor.

The invention relates to an elevator system, which can further improve the safety when a car is driven in maintenance work under the condition that a system for detecting the position of the car is abnormal. Each unit of the elevator system has a position detection system comprising a code tape and a reading device. When the abnormality of the position detection system (9a) is detected, the control device (10a) stops the driving of the car (8a). The control device (10b) of the normal unit (5b) moves the car (8b) to the position of the car (8a) read by the reading device (13a) immediately before the abnormality is detected. The control device (10b) causes the car (8b) to travel in conjunction with the car (8a) after the position alignment. After the positions are aligned, the control device (10a) controls the driving of the car (8a) according to the position of the car (8b) read by the reading device (13b) so as to prevent the motion state from deviating from the limiting range.