Abstract: Disclosed in the present invention are a user ability-based personalized cognitive training task recommendation method and system. The method comprises the following steps: establishing a machine initial test-based recommended training task list; establishing a manual evaluation-based recommended training task list; and merging and sorting to establish an optimal recommended training task list. According to the present invention, personalized cognitive training task recommendation can be performed on the basis of the user's ability, and mutual complementation of treatment schemes is achieved by combining a machine algorithm and manual evaluation, thereby balancing machine and human problems, and reducing decision-making errors.

Abstract: A method for calibrating defective channels of a CT device involves in a step S10, acquiring original data collected by the CT device; in a step S20, capturing to-be-recovered areas from the original data, wherein the to-be-recovered areas contain the defective channels of the CT device; in a step S30, inputting data of the to-be-recovered areas to a neural network for training so as to generate training results; and in a step S40, using the training results to repair the to-be-recovered areas. The method eliminates effects of artifacts caused by defective channels on image reconstruction.

Abstract: A method for calibrating defective channels of a CT device involves in a step S10, acquiring original data collected by the CT device; in a step S20, capturing to-be-recovered areas from the original data, wherein the to-be-recovered areas contain the defective channels of the CT device; in a step S30, inputting data of the to-be-recovered areas to a neural network for training so as to generate training results; and in a step S40, using the training results to repair the to-be-recovered areas. The method eliminates effects of artifacts caused by defective channels on image reconstruction.

Abstract: The present invention discloses a hydrogenation catalyst comprising metallic palladium supported on activated carbon support, wherein the penetration depth of metallic palladium in the support is at least about 10 ?m and up to about 100 ?m, the crystallite size of palladium is between about 40 ? and about 120 ?, and the palladium in the surface layer from the surface of support to a depth of 1 ?m is from about 5% to about 40% based on the total atom number of palladium and other elements. The present invention further discloses a process for preparing the hydrogenation catalyst, and a use of said hydrogenation catalyst in the purification of crude terephthalic acid.

Abstract: The present invention discloses a hydrogenation catalyst comprising metallic palladium supported on activated carbon support, wherein the penetration depth of metallic palladium in the support is at least about 10 ?m and up to about 100 ?m, the crystallite size of palladium is between about 40 ? and about 120 ?, and the palladium in the surface layer from the surface of support to a depth of 1 ?m is from about 5% to about 40% based on the total atom number of palladium and other elements. The present invention further discloses a process for preparing the hydrogenation catalyst, and a use of said hydrogenation catalyst in the purification of crude terephthalic acid.