Abstract: Provided is a bridge cascade system, which includes at least one phase unit and a driving unit for the phase unit. The phase unit includes N bridge topologies cascaded on alternating current AC sides. The driving unit includes one driving power supply circuit, multiple bootstrap power supply circuits and 2N driving circuits. In the phase unit, the driving circuits are powered by the driving power supply circuit directly or through corresponding bootstrap power supply circuits. The driving circuits are configured to provide driving signals for corresponding switch transistors in the phase unit. In this way, one driving power supply is matched with multiple bootstrap power supply circuits, realizing power supply to the driving circuits corresponding to the switch transistors of all bridge topologies, which reduces the difficulty in designing the driving power supply for the bridge cascade system and reduces cost for the system.

Abstract: A programming pulse is caused to be applied to a wordline associated with a memory cell of the memory sub-system. A program verify operation is caused to be performed on the memory cell to determine that a measured threshold voltage associated with the memory cell. The measured threshold voltage associated with the memory cell is stored in a sensing node associated with the memory cell. A bitline voltage matching the measured threshold voltage is caused to be applied to a bitline associated with the memory cell to reduce a rate of programming associated with the memory cell.

Abstract: The degree of differentiation of a cell in tissue is precisely determined. An estimating device (1) includes: a binarizing section (41) configured to generate binarized images from an image obtained by capturing an image of tissue; a Betti number calculating section (42) configured to calculate, for each binarized image, (i) the number of hole-shaped regions (b1) each surrounded by pixels of a first pixel value and each composed of pixels of a second pixel value, (ii) the number of connected regions each composed of the pixels of the first pixel value connected together, and (iii) a ratio (R) between (i) and (ii); a statistic calculating section (43) configured to calculate statistics of the calculated numbers (b1, b0) and ratio (R); and an estimating section (44) configured to feed input data including the calculated statistics to a trained estimating model to output the degree of differentiation of the cell in tissue.

Abstract: A memory device includes a memory array and control logic, operatively coupled with the memory array, to perform operations including causing a first current to be obtained with respect to cells of a wordline maintained at a first voltage, determining that the cells are at a second voltage lower than the first voltage, in response to determining that the cells are the second voltage, causing a voltage ramp down process to be initiated, causing a second current to be sampled with respect to the cells during the voltage ramp down process, and detecting an existence of charge loss by determining whether the second current satisfies a threshold condition in view of the first current.

Abstract: A foam proportional mixing device, comprising a Roots pump and a gear pump. The Roots pump comprises a Roots pump inlet, a pair of rotors and a fluid guide member. The fluid guide member is arranged in the Roots pump inlet, and is configured to guide fluid to flow to the pair of rotors and provide driving forces to the pair of rotors for rotating same in opposite directions from each other. The gear pump comprises a pair of gears. The foam proportional mixing device is configured as follows: a rotor shaft of one rotor in the pair of rotors of the Roots pump is connected to a gear shaft of one gear in the pair of gears of the gear pump, so as to drive the one gear by means of the one rotor to rotate. The foam proportional mixing device can achieve the function of the proportional mixing of foam and water by means of a simple and compact structure, moreover, the device is convenient to use, and can comply with fire-fighting work on various occasions.

Abstract: Methods and systems are disclosed to aggregate traffic from multiple server devices through a peripheral component interconnect (PCI) hosting device. In one embodiment, the PCI hosting device comprises a network interface to couple the PCI hosting device to a network, a plurality of PCI interfaces, a processing circuit to forward packets, and a power supply to supply power to the PCI interfaces independently from the plurality of server devices. Each of the PCI interfaces is designed to be coupled to one server device to the PCI hosting device, which is registered as a first PCI board of a first server device through a first PCI interface and as a second PCI board of a second server device through a second PCI interface, and the PCI hosting device is designed to forward packets between the network interface and the first server device, and the network interface and the second server device.

Abstract: A voice control command generation method includes displaying, by a terminal, prompt information in response to a first operation, where the prompt information prompts a user to enter a to-be-recorded operation, receiving, by the terminal, one or more operations from the user, recording, by the terminal in response to a second operation of the one or more operations, operation information corresponding to the one or more operations determining, by the terminal based on a third operation of the one or more operations, first text information corresponding to the operation information, receiving, by the terminal, a first voice command, and performing, by the terminal, a corresponding operation based on the operation information when a text of the first voice command matches the first text information.

Abstract: Mechanisms for resource isolation allow tenants executing in a multi-tenant software container to be isolated in order to prevent resource starvation by one or more of the tenants. Mechanisms for dependency isolation may be utilized to prevent one tenant executing in a multi-tenant software container from using another tenant in the same container in a manner that requires co-tenancy. Mechanisms for security isolation may be utilized to prevent one tenant in a multi-tenant software container from accessing protected data or functionality of another tenant. Mechanisms for fault isolation may be utilized to prevent tenants in a multi-tenant software container from causing faults or other types of errors that affect other tenants executing in the same software container.

Abstract: The present disclosure provides a multi-phase clock signal phase difference detection and calculation circuit and method, and a digital phase modulation system. The detection and calculation circuit includes an auxiliary digital-to-time conversion circuit, a main digital-to-time conversion circuit, a phase detector, and a state machine. The auxiliary digital-to-time conversion circuit selects a first phase clock signal and outputs an auxiliary clock signal, adjusts the phase of the auxiliary clock signal; the phase detector detects the phases of the auxiliary clock signal and a target clock signal output by the main digital-to-time conversion circuit; the state machine adjusts the phase of the auxiliary clock signal, and adjusts the phase of the target clock signal. When the phase difference between the two signals is zero, the amount of phase adjustment by the main digital-to-time conversion circuit is the phase difference between the first phase clock signal and the second phase clock signal.

Abstract: Provided are a processing method and device for quasi-cyclic low density parity check (LDPC) coding. The processing method for LDPC coding includes: determining, according to a data feature of an information bit sequence to be encoded, a processing strategy for the quasi-cyclic LDPC coding according to a data feature of an information bit sequence to be encoded; and performing, according to the processing strategy and based on a base matrix and a lifting size, the quasi-cyclic LDPC coding and rate matching output on the information bit sequence according to the processing strategy, a base matrix and a lifting value. This technical solution is able to improve adaptability and flexibility of the quasi-cyclic LDPC coding.

Abstract: A module level power electronics (MLPE) photovoltaic system and a method for photovoltaic string control are provided. The method is applied to a control unit in the MLPE photovoltaic system. The control unit detects an output current of each photovoltaic string in the MLPE photovoltaic system, and then controls, for photovoltaic strings connected in parallel to a same inverter in the MLPE photovoltaic system, a voltage of a photovoltaic string with larger output current to be reduced, or controls a voltage of a photovoltaic string with smaller output current to be increased, so that backflow current can be reduced to preset range tolerable for MLPE device. The method is from a perspective of the MLPE photovoltaic system, the backflow current is limited by controlling voltage change of associated photovoltaic string without additional hardware cost, effectively protecting MLPE device in the MLPE photovoltaic system.

Abstract: A bidirectional bridge for web view is a technical solution to an engineering challenge associated with presenting external content in a web view. A bidirectional bridge for web view facilitates bidirectional communication between the web view included in the messaging client and the messaging client itself. In response to a user action requesting a web page to be loaded in the web view, the bidirectional bridge initiates a request to messaging client to retrieve external content, receives the requested external content from the messaging client, and displays an image representing the external content in the web view as part of the web page.

Abstract: The present application provides a lithium niobate having a p-type nanowire region or an n-type nanowire region and a method for preparing the same. The method includes heating and then cooling a multi-domain lithium niobate crystal to confine hydrogen ions of the multi-domain lithium niobate crystal in domain wall regions; and poling the multi-domain lithium niobate crystal that has been heated by applying a voltage, to reverse a direction of polarization of one or more domains of the multi-domain lithium niobate crystal. The lithium niobate includes a lithium niobate crystal and a p-type nanowire region or an n-type nanowire region located in the lithium niobate crystal and adjacent to a surface of the lithium niobate crystal. The present application also provides a method for converting the charge carrier type of the lithium niobate nanowire region.

Abstract: Provided herein are crystalline forms of (R)-5-carbamoylpyridin-3-yl-2-methyl-4-(3-(trifluoromethoxy)benzyl)piperazine-1-carboxylate. Pharmaceutical compositions comprising crystalline forms of (R)-5-carbamoylpyridin-3-yl-2-methyl-4-(3-(trifluoromethoxy)benzyl)piperazine-1-carboxylate are also disclosed.

Abstract: The present application discloses an event extraction method and apparatus, a computer program product, a storage medium, and a device.

Abstract: A cascaded multi-port converter and a three-phase medium-voltage input system. Input terminals of the module units are cascaded. In each module unit: input ends of the high-voltage conversion units are cascaded, a magnetic core of a multi-winding transformer is wound with multiple primary windings and at least one secondary winding, an output end of each high-voltage conversion unit is connected to a corresponding primary winding, and the secondary winding is connected to an input end of a corresponding low-voltage rectifying unit. Therefore, the windings of the multiple high-voltage conversion units share the magnetic core, and the number of the multi-winding transformers and the number of the low-voltage rectifying units can be reduced, thereby reducing the volume, weight, and costs of the cascaded multi-port converter.

Abstract: A system and method for polar code coding with information bits placed in particular bit indexes are disclosed herein. In one embodiment, a method for channel coding includes: associating, by a polar code encoder, a first bit sequence with first bit indexes of a polar code input; associating, by the polar code encoder, a second bit sequence with second bit indexes, wherein the first bit indexes have a higher reliability than the second bit indexes; and encoding, by the polar code encoder, both the first bit sequence and the second bit sequence using a generator matrix to generate encoded bits.

Abstract: A cascaded multi-port converter and a three-phase medium-voltage input system. Input ends of all high-voltage conversion units are cascaded between two ports of an input end of the cascaded multi-port converter. A primary winding of a multi-winding transformer is connected to an output end of a corresponding high-voltage conversion unit, and a secondary winding of the multi-winding transformer is connected to an input end of a corresponding low-voltage rectifier unit. Output ends of some of the low-voltage rectifier units are connected to each other through a bus, and the remaining low-voltage rectifier units outputs independently, such that at least one secondary winding in each multi-winding transformer is indirectly connected to the bus, and at least one multi-winding transformer is provided with at least one secondary winding that independently outputs. Therefore, power balance between various modular units is achieved, and the security of the cascaded multi-port converter is improved.

Abstract: Techniques for interference mitigation in a wireless communication system are disclosed.

Abstract: Provided is a dual-channel fluorescence sensor based on in-situ synthesis of carbon dots on halloysite nanotubes (HNT) and loaded with a lanthanide metal-organic framework, which can implement rapid and simultaneous visual detection of DPA and TC. By using methods for preparing and using a dual-channel visual multicolor fluorescent probe above, the sensor has high stability and sensitivity, and is conducive to quick, accurate and intuitive detection of a biomarker.