Abstract: Provided is a customized, spliced and molded mattress, which includes a mattress base layer and a supporting layer, where the supporting layer is disposed on the mattress base layer, at least one supporting area is disposed on the supporting layer, at least one splicing block for changing local elasticity of the supporting area is disposed in the supporting area, and the mattress base layer, the supporting layer and the splicing block are integrally formed by molding. The present disclosure meets the improvement need for elasticity differences in different areas on the mattress by adopting a design that the mattress base layer is integrally formed with the supporting layer with elasticity improvement by molding, so that the mattress has abundant elasticity body feeling. The supporting areas that are formed through the splicing blocks may implement the abundant differential supporting, are applied more skillfully and abundantly, and suitable for customized design and production.

Abstract: The present disclosure provides a spliced and molded pillow core and a molding method thereof. The spliced and molded pillow core includes a spliced pillow core molded by splicing a plurality of splicing blocks, the spliced pillow core is integrally formed by molding, and base materials of at least two splicing blocks are different. The present disclosure adopts a differentiated base material for splicing and molding, so as to provide a pillow area with abundant elastic differences to the pillow core, and to meet the demand combining high rebounding and slow rebounding; and the pillow core is more comfortable to use. By combining an adhesive with tenon-and-mortise, the molded structure of the pillow core is more reliable and stable, the effective service life is prolonged, and at the same time the division of the pillow area is more reasonable, so as to provide the abundant differentiated support demand.

Abstract: An electronic device is provided, which includes a receive coil, a wireless electric energy receiver, a three-level buck circuit, a battery, and a receive end controller. A charging control method is also provided that includes: obtaining a battery voltage, and sending a first control signal and a second control signal based on the battery voltage. The wireless electric energy receiver converts, based on the first control signal, an alternating current generated by the receive coil through induction into a direct current, and outputs a first voltage, V1, to charge the battery in a first voltage mode. The three-level buck circuit bucks an output voltage of the wireless electric energy receiver based on the second control signal, and then outputs a voltage to the battery.

Abstract: The power supply conversion circuit includes an isolation transformer, and the isolation transformer includes at least two primary coils and at least one secondary coil. Each primary coil is connected to a half-bridge circuit by using a first resonant network, and half-bridge circuits corresponding to the at least two primary coils are connected in series between two electrodes of a power supply. The half-bridge circuit is connected in parallel to a voltage divider, the voltage divider includes a first capacitor and a second capacitor that are connected in series, a first terminal of the first resonant network is connected to an intermediate node of the half-bridge circuit, and a second terminal of the first resonant network is connected to a connection point between the first capacitor and the second capacitor.

Abstract: A database system detects a query targeting a first database object stored in a unified persistence format in a persistence store. In response to detecting the query, the database system determines whether to load the first database object in column-loadable format or page-loadable format into an in-memory store. In response to determining to load the first database object in the column-loadable format, the database system determines if a first bit representation of one or more corresponding primitives in the persistence store is compatible with a second bit representation used for storing the primitives in the in-memory store. The database system performs a native copy operation to copy the primitives from the persistence store to the in-memory store if the bit representations are compatible, where the native copy operation involves copying the primitives on a page-by-page basis without decoding and encoding values of the one or more primitives.

Abstract: This application provides a switched capacitor circuit SC and an electronic device. In the SC, when the SC circuit works in different voltage step-down modes, voltage step-down is separately performed in a ratio of 4:1, 2:1, and 1:1 on a voltage at an input end and then a voltage is output at the two ends of the fourth capacitor Co to implement switching of a plurality of voltage step-down ratios.

Abstract: Certain embodiments of the invention provide isolated anti-SARS-CoV-2 sdAbs, as well as polypeptides and protein molecules comprising such sdAbs. Certain embodiments of the invention also provide methods of using these sdAbs, polypeptides and protein molecules for treating or preventing a SARS-CoV-2 infection.

Abstract: A database system detects a query targeting a first database object stored in a unified persistence format in a persistence store. In response to detecting the query, the database system determines whether to load the first database object in column-loadable format or page-loadable format into an in-memory store. In response to determining to load the first database object in the column-loadable format, the database system determines if a first bit representation of one or more corresponding primitives in the persistence store is compatible with a second bit representation used for storing the primitives in the in-memory store. The database system performs a native copy operation to copy the primitives from the persistence store to the in-memory store if the bit representations are compatible, where the native copy operation involves copying the primitives on a page-by-page basis without decoding and encoding values of the one or more primitives.

Abstract: A method includes detecting a voltage signal of a three-level power converter, the voltage signal indicative of a capacitor voltage balancing in the three-level power converter, and dynamically adjusting an operating variable to adjust the voltage signal until the capacitor voltage balancing in the three-level power converter satisfies a criteria.

Abstract: Disclosed are an integrated mold-pressing pillowcase and a mold-pressing forming device. The integrated mold-pressing pillowcase includes a pillowcase top layer, a pillowcase bottom layer and a pillowcase peripheral wall, the pillowcase peripheral wall is arranged between the pillowcase top layer and the pillowcase bottom layer, the pillowcase bottom layer is provided with a window position for carrying a pillow inner, and the pillowcase top layer, the pillowcase bottom layer and the pillowcase peripheral wall are integrally mold-formed by polyester fabric. The present invention adopts a pillowcase design of integrated mold-pressing by the polyester fabric, which greatly simplifies the production process of the pillowcase, meets the demand for the built-in stability of the pillow inner, and has the characteristics of good air permeability, comfortable contact and the like.

Abstract: An electronic device is provided, which includes a receive coil, a wireless electric energy receiver, a three-level buck circuit, a battery, and a receive end controller. A charging control method is also provided that includes: obtaining a battery voltage, and sending a first control signal and a second control signal based on the battery voltage. The wireless electric energy receiver converts, based on the first control signal, an alternating current generated by the receive coil through induction into a direct current, and outputs a first voltage, V1, to charge the battery in a first voltage mode. The three-level buck circuit bucks an output voltage of the wireless electric energy receiver based on the second control signal, and then outputs a voltage to the battery.

Abstract: The power supply conversion circuit includes an isolation transformer, and the isolation transformer includes at least two primary coils and at least one secondary coil. Each primary coil is connected to a half-bridge circuit by using a first resonant network, and half-bridge circuits corresponding to the at least two primary coils are connected in series between two electrodes of a power supply. The half-bridge circuit is connected in parallel to a voltage divider, the voltage divider includes a first capacitor and a second capacitor that are connected in series, a first terminal of the first resonant network is connected to an intermediate node of the half-bridge circuit, and a second terminal of the first resonant network is connected to a connection point between the first capacitor and the second capacitor.

Abstract: A method includes detecting a voltage signal of a three-level power converter, the voltage signal indicative of a capacitor voltage balancing in the three-level power converter, and dynamically adjusting an operating variable to adjust the voltage signal until the capacitor voltage balancing in the three-level power converter satisfies a criteria.

Abstract: A system for processing objects with particulate contaminants includes a processing station having a holder for holding an object to be processed. The system also includes a suction means in fluid communication with the processing station for removing particulate contaminants from the processing station.

Abstract: This application provides a packaging device and a manufacturing method therefor, and an electronic device, and relates to the field of electronic technologies. The packaging device includes: a circuit board having a first surface; a first plastic packaging layer covering the first surface, where the first plastic packaging layer includes a first channel, the first channel penetrates the first plastic packaging layer in a direction perpendicular to the first surface; and a first pin electrically connected to the circuit board, the first pin is located in one first channel, at least a part of the first pin is connected to an inner wall of the first channel, a first conductive surface that is of the first pin and that is away from the circuit board is exposed from the first channel, and the first pin is electrically connected to an external device by using the first conductive surface.

Abstract: Disclosed herein are system, method, and computer program product (computer-readable storage medium) embodiments for implementing memory management via dynamic tiering pools. An embodiment operates by initializing a first memory pool of a first tier, and invoking first and second function calls to allocate memory to the first memory pool. Responsive to these function calls, an OS may allocate differently-sized memory elements for attachment to the first memory pool, from a memory free store managed by the OS. A second memory pool, of a second tier, may be further initialized, and a third function call may be invoked, to allocate memory to the second memory pool. Here, in response to the third function call, the first memory pool may reallocate the second memory element from the first memory pool for attachment to the second memory pool.

Abstract: Disclosed herein are system, method, and computer program product (computer-readable storage medium) embodiments for implementing memory management via dynamic tiering pools. An embodiment operates by initializing a first memory pool of a first tier, and invoking first and second function calls to allocate memory to the first memory pool. Responsive to these function calls, an OS may allocate differently-sized memory elements for attachment to the first memory pool, from a memory free store managed by the OS. A second memory pool, of a second tier, may be further initialized, and a third function call may be invoked, to allocate memory to the second memory pool. Here, in response to the third function call, the first memory pool may reallocate the second memory element from the first memory pool for attachment to the second memory pool.

Abstract: A system for processing objects with particulate contaminants includes a processing station having a holder for holding an object to be processed. The system also includes a suction means in fluid communication with the processing station for removing particulate contaminants from the processing station.