Abstract: Parameter optimization method for nonlinear vibration model of complex device, comprising: 1) constructing various structures of complex device into tree structure, to form tree-shaped complex device model subsystem, and carrying out sign convention for dynamic analysis; 2) establishing complex device dynamic model to obtain dynamic relationships among all parts of complex device; 3) according to contact and collision conditions in advancing process of physical complex device, adding constraint relationships among parts in dynamic simulation software; 4) on basis of dynamic simulation software, establishing virtual prototype model of complex device, and determining target parameter and optimization target; 5) simulating vibration characteristics of complex device for different levels of pavement spectrums and different vehicle speeds; 6) adding required input point and output point for virtual prototype model; 7) on basis of optimization algorithm of numerical solution in small sample deep learning, obtaining

Abstract: A Lactobacillus plantarum 121-5 is disclosed. The preservation number is CGMCC No. 27418, and the Lactobacillus plantarum is preserved in the China general microbiological culture collection center on May 24, 2023. The Lactobacillus plantarum 121-5 has high beta-glucosidase activity, can efficiently convert polydatin to prepare resveratrol, and has short conversion time and high conversion rate. Meanwhile, the conversion condition is mild, safe and reliable, and the large-scale preparation is easy. The strain is directly applied to fermentation of foods and medicines (edible and medicinal plants or fruits and vegetables) containing polydatin, so that the resveratrol content in a fermentation product is improved, and the biological activity of the product is improved.

Abstract: An aureobasidium pullulans P1 and application thereof in rare saponin conversion, and belongs to the technical field of microorganisms and biological medicines. The strain preservation number is CGMCC No.23227. The Aureobasidium pullulans P1 can be used for preparing rare ginsenoside Rg3 and CK by converting ginsenoside Rb1 by beta-glycosidase through fermentation, the target products are various and definite, other impurities have small interference, the products are easy to generate, the conversion specificity is high, the efficiency is high, the product recovery rate is over 60%, and the method has obvious advantages in the process of producing Rg3 and CK by mass fermentation.

Abstract: A memory allocation method for a neural network includes determining information about N memory blocks, sorting the N memory blocks in descending order based on sizes of the N memory blocks, allocating a first memory block to the neural network, to perform an operation for a first node set in the neural network, determining whether a memory block in an allocated set is reusable for an nth memory block, where the allocated set includes a memory block that has been allocated to the neural network, if the memory block in the allocated set is reusable for the nth memory block, allocating, to the neural network, the memory block to perform an operation for an nth node set in the neural network, then updating the allocated set, and sequentially performing the foregoing determining from n=2 to n=N based on the sort sequence.

Abstract: Systems and methods for an asymmetrical delta shape interior permanent magnet machine include rotor having a plurality of magnets arranged on an interior of the rotor. The plurality of magnets can include a first magnet having a first size, a second magnet having a second size, and a third magnet having a third size. The first magnet, the second magnet, and the third magnet can be arranged in a triangular shape. Each of the first size, the second size, and the third size can be different from one another.

Abstract: A cleaning robot for swimming pools includes a charging assembly, a floating assembly, a power assembly and a cleaning assembly. The charging assembly includes a charging mount provided with a first charging induction portion and a first magnet set. The floating assembly includes a floating body, and a second charging induction portion and a second magnet set are disposed on a lateral portion of the floating body. The floating assembly is attracted with the first magnet set of the charging assembly through the second magnet set, and the first charging induction portion and the second charging induction portion are arranged to charge the power assembly after being turned on. The floating assembly and the cleaning assembly are provided with a first and a second travel module for driving the floating assembly and the cleaning assembly respectively. The floating assembly is connected to the cleaning assembly through a power supply cable.

Abstract: A computer-implemented geometric processing method generates the design for a model of a dental prosthesis beginning with obtaining a blended prosthesis dataset for dental prostheses including natural tooth data and prosthesis tooth data designed by a technician. This dataset is preprocessed by generating a depth map with preprocessing so that the data is more suitable for deep learning (DL) so as to ensure generation of a smooth surface. An artificial intelligence neural network generation model with tooth feature loss is trained on the preprocessed dataset and is used to form a model of the prosthesis. Then the dental information associated with the dental model of dentition is used to generate a 3D dental prosthesis surface with a post-processing method to meet the requirement of the dental prosthesis. Finally, the rest of the dental prosthesis is completed to meet full function.

Abstract: A memory allocation method for a neural network includes determining information about N memory blocks, sorting the N memory blocks in descending order based on sizes of the N memory blocks, allocating a first memory block to the neural network, to perform an operation for a first node set in the neural network, determining whether a memory block in an allocated set is reusable for an nth memory block, where the allocated set includes a memory block that has been allocated to the neural network, if the memory block in the allocated set is reusable for the nth memory block, allocating, to the neural network, the memory block to perform an operation for an nth node set in the neural network, then updating the allocated set, and sequentially performing the foregoing determining from n=2 to n=N based on the sort sequence.

Abstract: Embodiments of the present disclosure provide an information processing method and apparatus, and a device, the method includes: sending an information request to a platform side at a preset time interval if it is determined that a merchant platform application has been logged in; receiving a system message sent by the platform side in response to the information request in real time, where the system message is sent by a service side to the platform side in real time; and displaying the system message and/or prompt information of the system message on the merchant platform application. This embodiment does not require the merchant to obtain a new system message by refreshing a page, avoiding a repeated refresh operation by the merchant and avoiding the merchant missing an important notification due to not being able to obtain the system message in time.

Abstract: A method includes obtaining an operator parameter and a processor parameter corresponding to an operator operation, creating N scheduling policies based on the operator parameter and the processor parameter, where the N scheduling policies are classified into M scheduling policy subsets, and each scheduling policy subset includes at least one scheduling policy, filtering the M scheduling policy subsets based on the operator parameter and the processor parameter, to obtain K feasible scheduling policies, where the K feasible scheduling policies are optimal scheduling policies of K feasible scheduling subsets in the M scheduling policy subsets, inputting the operator parameter and the K feasible scheduling policies into a cost model to obtain K operator operation costs, wherein N, M, and K are natural numbers, and determining, based on a target requirement and the K operator operation costs, an optimal scheduling policy used for the operator operation.

Abstract: Disclosed herein are methods for making styrene butadiene rubber latex compositions with high solids content. In an embodiment, the method includes mixing a seed, a styrene, an initiator, a base, one or more surfactants, and a solvent; adding a first portion of 1,3-butadiene to make a first reaction mixture; heating the first reaction mixture to make a first styrene butadiene rubber latex, where the first styrene butadiene rubber latex has an average Zeta potential from about ?49.3 mV to about ?78 mV; mixing the first styrene butadiene rubber latex, a styrene, a base, an initiator, one or more surfactants, and a solvent; adding a second portion of 1,3-butadiene to make a second reaction mixture; and heating the second reaction mixture to make a second styrene butadiene rubber latex, where the second styrene butadiene rubber latex has an average Zeta potential from about ?41 mV to about ?64 mV.

Abstract: Provided are a display panel and a display device. The display panel includes a light-emitting element and a pixel drive circuit electrically connected to the light-emitting element. The pixel drive circuit includes a drive transistor and a first reset module. The drive transistor is configured to control a drive current. The first reset module is connected to a first node and configured to provide a first reset voltage to the first node. The light-emitting element is connected to the first node. A working mode of the display panel comprise a first drive mode. A display frame in the first drive mode includes a valid frame and an invalid frame. In the first drive mode, a first reset voltage for the valid frame is different from a first reset voltage for the invalid frame.

Abstract: Systems and methods for determining parameters and/or configurations for implantable pulse generator and/or lead(s) for the cardiac conduction system. The method includes configuring a stimulation vector. The method also includes configuring an AV delay to be less than an intrinsic AV delay, controlling a pulse generator to deliver pacing with a pacing amplitude, determining a sensing signal from artifacts of the pacing, adjusting the pacing amplitude based on the determined sensing signal and a capture signal, and determining the pacing threshold based on the adjusted pacing amplitude. The method further includes configuring the AV delay to a percentage of an intrinsic AV delay, controlling the pulse generator to deliver pacing with the AV delay, determining a sensing signal from artifacts of the pacing, adjusting the AV delay based on the determined sensing signal, and configuring the pulse generator with the adjusted AV delay.

Abstract: A cleaning robot for swimming pools includes a charging assembly, a floating assembly, a power assembly and a cleaning assembly. The charging assembly includes a charging mount provided with a first charging induction portion and a first magnet set. The floating assembly includes a floating body, and a second charging induction portion and a second magnet set are disposed on a lateral portion of the floating body. The floating assembly is attracted with the first magnet set of the charging assembly through the second magnet set, and the first charging induction portion and the second charging induction portion are arranged to charge the power assembly after being turned on. The floating assembly and the cleaning assembly are provided with a first and a second travel module for driving the floating assembly and the cleaning assembly respectively. The floating assembly is connected to the cleaning assembly through a power supply cable.

Abstract: Provided display panel includes at least one pixel circuit and at least one light-emitting element. The at least one pixel circuit is configured to drive the at least one light-emitting element to emit light. The at least one pixel circuit includes a drive module and a light emission control module. The drive module is configured to generate a drive current. The light emission control module is configured to control the drive current to be transmitted to a light-emitting element in response to a light emission control signal. A display period of the display panel includes a first display stage and a second display stage, where in the first display stage, an ineffective pulse duration for the light emission control signal is T1, in the second display stage, an ineffective pulse duration for the light emission control signal is T2, and T1 > T2.

Abstract: Provided are a display panel and a display device. The display panel includes a light-emitting element and a pixel drive circuit electrically connected to the light-emitting element. The pixel drive circuit includes a drive transistor and a first reset module. The drive transistor is configured to control a drive current. The first reset module is connected to a first node and configured to provide a first reset voltage to the first node. The light-emitting element is connected to the first node. A working mode of the display panel comprise a first drive mode. A display frame in the first drive mode includes a valid frame and an invalid frame. In the first drive mode, a first reset voltage for the valid frame is different from a first reset voltage for the invalid frame.

Abstract: Disclosed is a chemical oxygen self-rescue device, including a breathing assembly (1), an oxygen generating assembly (2) and a gas bag; (3) the oxygen generating assembly includes an oxygen generating agent tank (21), a gas discharge valve (23) and an oxygen candle (22); the gas discharge valve is arranged on a component above an oxygen generating agent (213) in the oxygen generating agent tank and below a breathing end of the breathing assembly, and the opening and closing of the gas discharge valve are controlled by means of an inflated volume of the gas bag. The chemical oxygen self-rescue device reduces the resistance to breathing, lowers the temperature of breathed gas and improves the utilization rate of the oxygen generating agent.

Abstract: An electrical machine includes a rotor, a stator, and a winding mounted within a housing. The rotor includes a rotor core mounted to a shaft and a plurality of blades extending radially away from the rotor core. Each blade of the plurality of blades is curved axially along the rotor core. The stator includes a stator core and a plurality of teeth extending from the stator core toward the rotor core to define a plurality of slots between successive teeth. The winding is wound through at least two slots of the plurality of slots. The stator is mounted radially relative to the rotor. The housing includes a front wall, a back wall, and a radial sidewall mounted between the front wall and the back wall to define an enclosure. A radial inlet aperture wall is formed circumferentially through the radial sidewall to form an opening through the radial sidewall.

Abstract: A method for estimating a wrench acting on a reference point of a robot includes the steps of: a) measuring at least one component, but not all components, of the wrench; and b) estimating non-measured components of the wrench based on a dynamical model of the robot while taking into account the measured components.