Abstract: An image display method, an image display device, and a readable storage medium are disclosed. The image display method applied to a headset display device comprises: controlling the camera to capture a display image, comparing the display image with a corresponding reference image, to obtain a pixel point of the display image that is changed relative to the reference image, wherein the reference image is a previous frame image of the display image captured by the camera (S10); obtaining pixel information of the pixel point according to the changed pixel point (S20); and refreshing the changed pixel point to the display screen according to the pixel information (S30).

Abstract: A data operation system includes: a plurality of data processing units; a memory expansion unit communicatively coupled to the plurality of data processing units; a plurality of data operation units communicatively coupled to the plurality of data processing units and the memory expansion unit; and a plurality of first storage units communicatively coupled to the plurality of data processing units; wherein the memory expansion unit comprises a plurality of memory expansion cards, each of the plurality of data processing units is communicatively coupled to at least one of the plurality of memory expansion cards, and the plurality of memory expansion cards are interconnected.

Abstract: Embodiments of this disclosure provide a processing system and an instruction transmission method. The instruction transmission method includes: receiving a processor instruction from a main processor communicatively coupled to an interface unit; generating an accelerator instruction corresponding to the processor instruction; determining a target accelerator corresponding to the accelerator instruction from a plurality of accelerators communicatively coupled to a first bus network; and transmitting the accelerator instruction to the target accelerator through the first bus network.

Abstract: A fiber connecting apparatus and a fiber ferrule preparation method are provided. The connecting apparatus includes a first fiber connector, a second fiber connector, and a pair of adapters. The first fiber connector includes a first fiber ferrule having a central axis through-hole structure, and a first fiber is capable of passing through the first fiber ferrule. The second fiber connector includes a second fiber ferrule having a central axis through-hole structure, and a second fiber is capable of passing through the second fiber ferrule. Two adapters in the pair of adapters are configured to implement docking between the first fiber and the second fiber inside the pair of adapters. Ahead of the first fiber ferrule includes a first fiber limiting structure; and/or a head of the second fiber ferrule includes a second fiber limiting structure.

Abstract: The present disclosure provides a blockchain-based green power certification method, apparatus, and system, to pre-process obtained basic data to obtain proof-of-existence data, certify the proof-of-existence data from a production side and a consumption side by using a certification chain and a token chain respectively, and obtain a green power attribute certificate and a green power consumption label if the certification is passed; generate a unique digital identifier for the green power attribute certificate and the green power consumption label separately based on a non-fungible token (NFT), which realizes non-interchangeability, indivisibility, and other characteristics of the certificate and the identifier; and supervise and verify a certification process by using a chain of custody, and generate a corresponding unique blockchain identifier for the certification chain, the token chain, and the chain of custody separately through multi-chain interaction, so as to realize data interaction between blockcha

Abstract: The present invention provides a heat dissipation device having a speaker box, a heating element and a heat conductor. The speaker box includes a housing having a sound outlet hole and a metal embedding member embedded in the housing. The speaker unit includes a diaphragm. The heat conductor is connected to the heating element. In the present invention, the heat conductor transfers the heat generated by the heating element to the metal embedding member, the metal embedding member conducts heat to the outside of the sound outlet hole through the air in the front cavity.

Abstract: Provided are a Time-Interleaved Successive Approximation Register Analog-to-Digital Converter, TISAR ADC, and a calibration method thereof. The calibration method for the TISAR ADC may include: sampling an analog signal input into the TISAR ADC to generate a reference digital signal (S130); according to the reference digital signal and output digital signals generated by analog-to-digital conversion sub-modules of the TISAR ADC, obtaining capacitor array calibration parameters and time delay calibration parameters of the analog-to-digital conversion sub-modules; adjusting capacitor arrays of the corresponding analog-to-digital conversion sub-modules according to the capacitor array calibration parameters, respectively; and adjusting time delays of the corresponding analog-to-digital conversion sub-modules according to the time delay calibration parameters, respectively.

Abstract: The described positional awareness techniques employing visual-inertial sensory data gathering and analysis hardware with reference to specific example implementations implement improvements in the use of sensors, techniques and hardware design that can enable specific embodiments to provide positional awareness to machines with improved speed and accuracy.

Abstract: Disclosed is an aero-engine turbine assembly, including a turbine assembly body and a cooling component. The turbine assembly body is provided with an internal flow passage, and the turbine assembly body includes a turbine rotor disk, a blade end wall and a turbine rotor blade, which are successively fixedly connected with each other. The internal flow passage passes through the turbine rotor disk, the blade end wall and the turbine motor blade, and the internal flow passage is provided with an inlet and an outlet. The cooling component is fixed on the turbine rotor disk, and the cooling component includes an electromagnetic pump system, an expansion joint and a radiator, which are successively communicated with each other. The electromagnetic pump system is communicated with the inlet, to inject liquid metal to into the internal flow passage.

Abstract: A three-dimensional scanning system, a scanning path planning method, and a three-dimensional scanning method are provided. The three-dimensional scanning system includes a control apparatus configured to determine a planned scanning path for a to-be-measured object based on a historical scanning path of an object type to which the current to-be-measured object belongs and according to a historical pose and a current pose of a rotary table carrying the to-be-measured object. The three-dimensional scanning system further includes a mechanical arm that includes a gripping end for gripping a scanner to drive the scanner to scan the to-be-measured object according to the planned scanning path under control of the control apparatus.

Abstract: Disclosed is a skew rolling assembly suitable for large-size superalloy bars, including four rollers with completely identical shape and size, where the four rollers are all active rollers. In the production process, the four rollers play a role in promoting the forward flow of blank metal in a rolling direction, thus avoiding a rolling jamming phenomenon caused by the obstruction of guide plates to the forward flow of the blank in the rolling process of the prior art. The providing of the four rollers improves the rolling speed and increases the degree of deformation. Disclosed is a skew rolling method suitable for large-size superalloy bars.

Abstract: The disclosure provides a rolling mechanism for grain refinement of an M50NiL rod. The rolling mechanism includes two main rolls and two auxiliary rolls. The two main rolls are opposite to each other and the two auxiliary rolls are opposite to each other, and the two main rolls and the two auxiliary rolls are disposed around a rolling line to form a nip zone. In any cross section of the nip zone with the rolling line as a normal line, a first line connecting the central axes of the two main rolls is perpendicular to a second line connecting the central axes of the two auxiliary rolls; each main roll further includes a first protrusion portion, a first end portion and a second end portion. The first end portion and the second end portion are disposed opposite each other along a corresponding roll axis.

Abstract: A pneumatic soft dexterous hand for a patient with missing finger functions and a soft robot relate to the technical field of soft robots. The pneumatic soft dexterous hand includes a soft finger, the soft finger includes a rubber casing, a silicone tube, an endoskeleton, and a built-in air bag, and the silicone tube is sleeved in the rubber shell. The silicone tube is formed with a chamber, and the endoskeleton and the built-in airbag are arranged in the silicone tube. The endoskeleton includes a plurality of skeleton modules hinged together, the plurality of the skeleton modules are divided into two groups, and the skeleton modules of the two groups are hinged in an alternating manner in sequence from left to right. The built-in airbag is embedded on the endoskeleton to support the endoskeleton.

Abstract: A control apparatus for a conveying system includes: a control module configured to control a power converter coupled to a motor, and a modification module. The modification module is configured to: estimate a size parameter of an item conveyed by the motor, determine if a hold command is received; and if a hold command is received, modify one or more parameters of the control module based on the estimated size parameter of the item to thereby hold a rotor of the motor at a rotor hold position.

Abstract: Methods and systems for managing permission controls are disclosed. A method can comprise receiving a request to perform one or more restricted activities. The request can include at least an identifier of a first user associated with the request and an identification of the one or more restricted activities. The identifier of the first user associated with the request and/or the identification of the one or more restricted activities can be presented to a second user, such as an administrator. A response to the request can be provided by the second user and transmitted comprising information relating to one or more of a grant, denial, or modification of the performance of the one or more restricted activities. The transmitted response can be configured to be processed by the source to effect grant, denial, or modification of the performance of the one or more restricted activities.

Abstract: An information synchronization method, a terminal and a system, which relates to the technical field of communication. The method includes: by the first terminal, sending a controlling request of a target terminal to the controlling server; by the first terminal, receiving a state feedback information sent by the first terminal, according to the state feedback information, updating an information of the first terminal; and by the first terminal, sending the state feedback information to each of the at least one second terminal, so that the second terminal updates an information of the second terminal according to the state feedback information.

Abstract: Memory controllers, memory devices, memory systems and operation methods are provided. A memory controller is to: find, in input data, a binary code to be replaced corresponding to a preset programming level to be replaced, the input data is to be written into a memory cell; and substitute the binary code to be replaced in the input data with a replacement binary code corresponding to a preset replacement programming level, and generate a replacement identifier linking a memory address corresponding to the replacement binary code. The quantity of states is reduced by modifying a data encoding mode of the memory controller to help shorten programming duration of the memory device and reduce disturbance.

Abstract: An optical imaging structure includes a reflection structure, a holographic medium, a first display screen and a second display screen. A first angle is arranged between the reflection structure and the first display screen; the second display screen is located directly above the reflection structure, the second display screen is parallel to the reflection structure, and a distance between the second display screen and the reflection structure is greater than the width of the first display screen. The holographic medium is arranged at an inner side of a structure formed by the reflection structure, the first display screen and the second display screen, and a second angle is arranged between the holographic medium and the first display screen. The first angle is 90°, the second angle is 45°.

Abstract: The present invention discloses a highly reliable implantable device of an implantable biological sensor. Before use, the fixed seat cannot move relative to the slidable seat, achieving reliable transportation. In use, the lower end face of the slidable seat is pressed against the skin; the lower end face of the first snap-fit protrusion squeezes the upper end face of the vertical snap-fit plate; the first snap-fit protrusion is gradually away from the support of the vertical snap-fit plate, whereby the inside vertical face of the vertical snap-fit plate pushes the first snap-fit protrusion inward, and the fixed seat moves downward relative to the slidable seat, achieving good controllability.