2 results about "Restricted range" patented technology

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.