Abstract: Disclosed are a material analysis method based on the crystal structure database, a system, a computer-readable storage medium and an application. The material analysis method includes comparing experimental pattern information obtained from examination of a to-be-tested sample with theoretical pattern information calculated from material structure data in the crystal structure database, and obtaining crystallographic information and phase composition of the to-be-tested sample through intelligent analysis. The crystallographic information include space group, unit cell parameter, and specific coordinates of atoms in unit cell. The crystal structure database has material structure data obtained by experimental measurement and/or theoretical prediction, including chemical formula, space group, unit cell parameter and specific coordinates of atoms in unit cell.

Abstract: Disclosed are a winding apparatus and a winding method, the winding apparatus includes: a winding needle, being configured to wind a winding material; a power supply assembly, being configured to be electrically coupled to the winding needle, so as to form current on an axis of the winding needle; and a magnet supply assembly, being configured to provide a magnetic field to the winding needle, a magnetic field direction intersecting the axis of the winding needle so that the winding needle generates an ampere force for resisting a deformation of the winding needle in the magnetic field when the winding material is wound. By the above method, the present application may reduce the deformation of the winding needle, reduce a defective rate of a winding product formed by the winding of the winding material, and improve quality of the winding product.

Abstract: According to one aspect, a method of operating a set of ferroelectric memory cells is provided. The method may include writing a first data bit having a first value to a first ferroelectric memory cell. The method may include writing a sign bit having the first value to second ferroelectric memory cell. The method may include receiving a read or a write-operation request. The method may include reading the sign bit from the second ferroelectric memory cell. The method may include, in response to the sign bit having a second value, inverting the first data bit from the second value to the first value. The method may include, in response to the sign bit having a second value, reading the first data bit with the first value from the first ferroelectric memory cell after the inverting.

Abstract: A high-speed seeding system is provided. The system includes a crawler mechanism, a seed metering mechanism, and multiple hill-drop devices. The crawler mechanism includes a motor drive unit, transmission crawler belts, and a crawler support unit. The transmission crawler belts are provided with hill-drop mounting holes at intervals. The motor drive unit is configured to drive the transmission crawler belts through the crawler support unit. The hill-drop devices are respectively mounted in the hill-drop mounting holes according to seeding intervals. The seed metering mechanism is fixed on the crawler support unit and is configured to deliver seeds to the hill-drop devices and push the hill-drop devices downward for seeding when the hill-drop devices pass underneath the seed metering mechanism.

Abstract: Systems and methods described herein for encoding of video frames based on an amount of text contained within each block of the frame. For each frame, text detection is performed to identify text contained within each block of the frame and each pixel position within the frame. The text detection outputs, for each block and pixel position, an amount of textual content with respect to a preset threshold amount. Based on the output, only the blocks and pixel positions having an amount of text content equal to or greater than the threshold amount are selected as candidates for block matching. For other blocks block matching processes are bypassed.

Abstract: Disclosed are methods of preparing a Surface Acoustic Wave (SAW) device, comprising: sequentially depositing a Cu electrode, a silicon oxide film, modifying the surface of the silicon oxide film, and then depositing a piezoelectric film, and an Al electrode on a substrate having an interdigital (IDT) electrode pattern to obtain the SAW device. In some embodiments, the Cu and Al electrodes both have IDT electrode patterns corresponding to the IDT pattern of the substrate. Because the Sezawa wave mode that is adopted is formed by coupling film thickness vibration and transverse vibration, the present invention is characterized in that a longitudinal electric field and a transverse electric field are excited through the double-layer electrodes whereby the electromechanical coupling coefficient of the SAW device can be improved by changing the coupling pattern between the electric fields and the piezoelectric film.

Abstract: The present application discloses an energy storage cabinet, including a battery management module and a battery assembly. The battery management module is located on the side wall of the battery assembly, and the battery management module is electrically connected to the battery assembly. In the energy storage cabinet according to the present application, because the battery management module is located on the side wall of the battery assembly, the mounting height of the battery management module is effectively reduced, which is convenient for workers to control the battery management module, further facilitates the operation of the energy storage cabinet, and improves the safety of workers operating the energy storage cabinet.

Abstract: A receptacle electrical connector includes: an insulating housing having two first mating slots arranged parallel in a first direction, two second mating slots and one third mating slot, each of the two first mating slots extending in a second direction perpendicular to the first direction; and plural terminals retained in the insulating housing and comprising contacting portions extending into said mating slots, respectively, wherein the two second mating slots are aligned with each other in the first direction, each of the second mating slots is aligned with a corresponding first mating slot in the second direction, and the third mating slot is located at one side of the two second mating slots.

Abstract: An electrical connector assembly includes a receptacle and a plug. The receptacle includes: an insulating housing having two mating slots; two rows of terminals located at opposite sides of each of the two mating slots; and a metallic shell surrounding around an outer side of the insulating housing, the insulating housing has two opposite guiding holes at opposite ends of each mating slot in the second direction, each of the guiding holes is defined by the metallic shell at an outer side perpendicular to the second direction. The plug includes: an insulating housing having a base portion; two paddle cards going across the base portion; and a pair of guiding posts extending from the base portion and located at opposite ends of each paddle card, a pair of guiding boards extend forwards from the base portion, and the guiding boards extend beyond the guiding posts in the first direction.

Abstract: A container system is disclosed herein. The container system includes a cylindrical hollow body, a top cap, and a bottom cap. The body includes openings on a top end and bottom end. The body also includes a raised ridge system that can be disposed around the circumference of the top end of the body. The raised ridge system forms a plurality of locking channels, each with an entry and exit gap. The entry gaps are laterally and vertically offset from the exit gaps. The top cap is removably coupled to the top end of the body. The top cap includes a plurality of protrusions that are configured to engage with and pass through the plurality of locking channels to transition the top cap and the body between a locked state and an unlocked state.

Abstract: An integrated device based on a third-generation semiconductor and a manufacturing method thereof are provided. The integrated device at least includes a SiC substrate, a buffer layer, a GaN film layer and a piezoelectric material layer; the SiC substrate includes a first buffer layer stacked on a first SiC substrate and a second buffer layer stacked on a second SiC substrate; the GaN film layer at least includes a first GaN film layer stacked on the first buffer layer and a second GaN film layer stacked on the second buffer layer; the first SiC substrate, the first buffer layer, the first GaN film layer and the piezoelectric material layer which are stacked are used for forming a piezoelectric multi-layer film; the piezoelectric multi-layer film is used for forming a surface acoustic wave (SAW) filter.

Abstract: A stacking power supply cabinet is provided. The stacking power supply cabinet includes a top assembly and at least one battery module. In a case that the number of the battery module is more than one and the multiple battery modules are stacked sequentially from top to bottom, an electric connection path for power supply and/or storage is established among the stacked multiple battery modules, and the electric connection path is conducted via a power transmission line in the top assembly, and then the battery modules are charged. Thus, in the installation process of the power supply cabinet, the electric connection path for the power supply and/or storage among the multiple stacked battery modules is uncharged before the top assembly is installed, thereby reducing the risk of electric shock to the human body and improving the safety during the installation process of the stacking power supply cabinet.

Abstract: Fast simultaneous feasibility testing (SFT) for management of an electrical power grid is achieved through various innovations. The computation problem relates to evaluation of candidate solutions for external power flows into a power grid, with respect to predetermined constraints and contingencies. A perturbation approach with precomputation is extended to encompass grid states (e.g. time periods) in addition to contingencies. Advantages derive from: fewer factorizations or inversions of large matrices; decoupling of state-dependent and contingency-dependent perturbations, leaving relatively few perturbations jointly dependent on both state and contingency; or making approximations by discarding small jointly dependent terms. Significant computation reductions allow a single workstation to perform SFT for 36 hours of a day-ahead cycle.

Abstract: According to one aspect of the present disclosure, a method of operating a set of ferroelectric memory cells is provided. The method may include, in a first cycle, writing a first data bit to a first ferroelectric memory cell of the set of ferroelectric memory cells. The method may include, in the first cycle, writing a set of sign bits each having a first value to at least one second ferroelectric memory cell of the set of ferroelectric memory cells. The set of sign bits may indicate a polarity of the set of ferroelectric memory cells. The method may include, in a second cycle subsequent to the first cycle, reading the set of sign bits from the at least one second ferroelectric memory cell. The method may include, in the second cycle, performing an error-correction operation on the set of sign bits to determine the first value of the set of sign bits written in the first cycle.

Abstract: The present application discloses a winding device, a winding system, and a winding method. The winding device includes a winding needle and a first push rod. A first needle body and a second needle body form a first hole at a first end, at least part of the first hole is a first adjusting hole section, and a radial dimension of the first adjusting hole section is gradually reduced in a direction close to a second end. The first push rod is inserted into the first hole and capable of reciprocating in an axial direction of the winding needle, and the first push rod has a first adjusting section matched with the first adjusting hole section.