Abstract: Disclosed is an intelligent interactive decision-making method for a discrete manufacturing system. The method includes the following steps: step 1, establishing a production scheduling optimization model and strategy for discrete manufacturing for an actual application scene; step 2, training the scheduling strategy with existing production data on the basis of a deep reinforcement learning algorithm, and storing a state having a high reward in a training process in a memory; step 3, updating the state according to prior knowledge in the memory; step 4, inputting the updated state into a deep reinforcement learning network, obtaining a corresponding reward, and updating the memory according to the reward; and step 5, repeating step 4 until model parameters converge, and saving and putting the model into an actual production scene.

Abstract: Disclosed are an emotional evolution method and terminal for a virtual avatar in educational metaverse.

Abstract: Disclosed are an emotional evolution method and terminal for a virtual avatar in educational metaverse.

Abstract: Disclosed is a characterization method based on deep reinforcement learning for discrete manufacturing industry data. The method includes: collecting discrete manufacturing industry data, and creating a spatio-temporal database; dividing the discrete manufacturing industry data into a discrete feature and a continuous feature, creating a data coupling coding network, converting a coding vector in the coding network into a characterization vector, and creating a data characterization model; quantitatively characterizing discrimination of a data category by means of cluster evaluation indexes; and using weights of cluster evaluation indexes of different dimensions as dynamic rewards, creating a deep reinforcement learning model, and updating a neural network parameter of deep reinforcement learning through characterization of an interactive relation between a model and a discrete manufacturing decision-making analysis system.

Abstract: The present invention discloses a kind of xylanase mutant and its preparation method and application, which relates to the technical field of genomic engineering and genetic engineering. Such mutant includes one or more mutants obtained by taking xylanase HwXy110A as female parent to conduct saturation mutagenesis to the site of Gly363. Specifically, relates to obtaining 19 mutants through site-directed mutagenesis, and then conducting yeast expression to them, after that, obtaining two mutants with significantly improved specific activity and thermal stability through screening of thermal stability and catalytic activity; the present invention can significantly improve the thermal stability and catalytic efficiency of xylanase through modifying the site of Gly363, and is of important guiding significance for improving the thermal stability and the catalytic efficiency of the 10th family of xylanases and other glycoside hydrolases as well as lays the foundation for its application in industrial production.

Abstract: The present invention discloses a kind of xylanase mutant and its preparation method and application, which relates to the technical field of genomic engineering and genetic engineering. Such mutant includes one or more mutants obtained by taking xylanase HwXyl10A as female parent to conduct saturation mutagenesis to the site of Gly363. Specifically, relates to obtaining 19 mutants through site-directed mutagenesis, and then conducting yeast expression to them, after that, obtaining two mutants with significantly improved specific activity and thermal stability through screening of thermal stability and catalytic activity; the present invention can significantly improve the thermal stability and catalytic efficiency of xylanase through modifying the site of Gly363, and is of important guiding significance for improving the thermal stability and the catalytic efficiency of the 10th family of xylanases and other glycoside hydrolases as well as lays the foundation for its application in industrial production.

Abstract: Code and data versioning allow developers to work on code and data without affecting production code and data and without affecting the development activities of other developers. Code and data being worked on by a developer are associated with a task. The system automatically determines the dataset to use for a given development task from among a production dataset, a latest dataset, or a temporary dataset associated with the development task so that development code does not have to be modified to read from a specific dataset.

Abstract: Code and data versioning allows developers to work on code and data without affecting production code and data and without affecting the development activities of other developers. Code and data being worked on by a developer are associated with a task. The system automatically determines the dataset to use for a given development task from among a production dataset, a latest dataset, or a temporary dataset associated with the development task so that development code does not have to be modified to read from a specific dataset.

Abstract: A semipermeable element for the penetration of 3D printing curing inhibitors. The semipermeable element has a pore density of 107-1011/cm2, and/or the pore diameter of 0.01 ?m-5 ?m. A usage of a semipermeable element, and manufacturing method thereof as well as a 3D printing apparatus. The semipermeable element has good permeability to the curing inhibitor, and simply introducing air can achieve the thickness of inhibited curing layer as required by the continuous manufacturing of the three-dimensional objects.

Abstract: A 3D printing apparatus with a radiation source, a workbench, and a liquid tank, wherein a workbench for supporting a three-dimensional object being constructed, and a liquid tank for containing a polymerizable liquid for constructing a three-dimensional object. The apparatus also includes a cover plate which is located in the liquid tank or on the top of the liquid tank; the radiation source irradiates from above the cover plate. The cover plate is an element transparent to the radiation source; and the lower surface of the cover plate is a covering surface which remains in contact with the polymerizable liquid during the printing process.

Abstract: A semipermeable element for the penetration of 3D printing curing inhibitors. The semipermeable element has a pore density of 107-1011/cm2, and/or the pore diameter of 0.01 ?m-5 ?m. A usage of a semipermeable element, and manufacturing method thereof as well as a 3D printing apparatus. The semipermeable element has good permeability to the curing inhibitor, and simply introducing air can achieve the thickness of inhibited curing layer as required by the continuous manufacturing of the three-dimensional objects.

Abstract: A 3D printing apparatus with a radiation source, a workbench, and a liquid tank, wherein a workbench for supporting a three-dimensional object being constructed, and a liquid tank for containing a polymerizable liquid for constructing a three-dimensional object. The apparatus also includes a cover plate which is located in the liquid tank or on the top of the liquid tank; the radiation source irradiates from above the cover plate. The cover plate is an element transparent to the radiation source; and the lower surface of the cover plate is a covering surface which remains in contact with the polymerizable liquid during the printing process.

Abstract: A child stroller apparatus includes a handle frame having a first side segment fixedly connected with a first coupling part, a front leg frame having a second side segment fixedly connected with a second coupling part, a rear leg frame having a third side segment fixedly connected with a shell, the third side segment being respectively connected pivotally with the first and second coupling parts, a linking member received at least partially inside the shell and respectively connected pivotally with the first and second coupling parts about two different pivot axes, the handle frame and the front leg frame being thereby rotationally linked to each other, and a latch disposed adjacent to the first coupling part, the latch being operable to rotationally lock the handle frame with respect to the rear leg frame so as to lock the infant stroller apparatus in an unfolded state.

Abstract: A child stroller apparatus includes a handle frame having a first side segment fixedly connected with a first coupling part, a front leg frame having a second side segment fixedly connected with a second coupling part, a rear leg frame having a third side segment fixedly connected with a shell, the third side segment being respectively connected pivotally with the first and second coupling parts, a linking member received at least partially inside the shell and respectively connected pivotally with the first and second coupling parts about two different pivot axes, the handle frame and the front leg frame being thereby rotationally linked to each other, and a latch disposed adjacent to the first coupling part, the latch being operable to rotationally lock the handle frame with respect to the rear leg frame so as to lock the infant stroller apparatus in an unfolded state.

Abstract: The invention discloses an artificial pairing and breeding method of Platysternon megacephalum. The method comprises the selection of species sources, domestication before pairing, setting of a breeding pond, artificial pairing, collection and hatching of turtle eggs. The method fully considers the ecological and biological characteristics of the Platysternon megacephalum, including the behavior, feeding habit, habitat, and breeding ecology. The main problems in artificial pairing and captive breeding of the Platysternon megacephalum can be effectively solved, including the breeding turtle selection, pairing, pairing stage selection, sex ratio, density, artificial food, setting of the reproduction and hatching environments, the occurrence of disabilities and fatal events during the pairing and mating process is significantly reduced; the egg laying rate of female turtles and the hatching rate of turtle eggs are both significantly improved.

Abstract: The coupling device for a carrier (a bassinet or a child seat) is configured at the outer side of the stroller frame so that the carrier can be as wide as possible for child inside to have a roomy environment. Additionally, a connection device is further configured between the coupling device and the stroller frame for bringing the carrier to rotate with the stroller frame and keeping or adjusting the tilt angle of the carrier mounted on the stroller when the stroller frame is folding.