Abstract: An apparatus for jump starting a vehicle is disclosed. The apparatus comprises: a first and a second ignition clamp, a sampling circuit configured to sample polarity output signal from the vehicle battery when each of the first and the second ignition clamps is connected to a respective one of the first and the second terminals of the vehicle battery, a polarity determining circuit configured to determine, based on the sampled polarity output signal, a polarity of the first and the second terminal of the vehicle battery, and a clamp polarity switching circuit configured to connect the first and the second ignition clamps to a portable power supply, and enable, in response to the determined respective polarities of the first and the second terminals of the vehicle battery, a polarity on the first and on the second ignition clamps to be the same as that of the corresponding terminal connected thereto.

Abstract: A multifunctional battery health state detection device is disclosed, which includes a housing, two ignition clamps for connecting to a vehicle battery; a microcontroller; a sampling circuit connected to the two ignition clamps for sampling a voltage signal of the vehicle battery; and an indicator unit including a plurality of indicators configured to display a ranking of the battery health state of the vehicle battery. The microcontroller is configured to obtain the sampled voltage signal from the sampling circuit, detect the ranking of the battery health state based on the sampled voltage signal, and control the indicator unit to display the battery health state according to the ranking of the battery health stat, and boost the vehicle battery by providing starting energy from a portable power supply to the vehicle battery in response to detecting the battery health state being one of two lowest rankings among a plurality of rankings.

Abstract: Embodiments of structure and methods for forming a memory device are provided. In an example, a memory device includes a substrate, a stack above the substrate, a channel structure, and a source contact structure each extending vertically through the memory stack. The source contact structure includes (i) a plurality of first source contact portions each extending vertically and laterally separated from one another and (ii) a second source contact portion extending vertically over and in contact with the plurality of first source contact portions, the second source contact portion being laterally continuous.

Abstract: An energy storage apparatus includes a cabinet, cyclic cooling units, a support, battery modules, and an air supply duct. The support is fastened in an inner cavity of the cabinet, the battery modules are fastened on the support, and the support and the battery modules jointly separate the inner cavity into an air intake region and an air return region. A heat dissipation duct communicating with the air intake region and the air return region is disposed in the battery module. The cyclic cooling unit is located outside the cabinet and includes an air inlet vent and an air return vent. One end of the air supply duct communicates with the air inlet vent, and the other end of the air supply duct communicates with the air intake region. The air return vent communicates with the air return region.

Abstract: A packet sending method includes, when a network element in a serial network receives a to-be-forwarded packet at a previous node from a previous network element, and when the network element needs to send a to-be-sent packet at a current node, determining whether the to-be-sent packet at the current node and the to-be-forwarded packet at the previous node can be superimposed, where the network element is an intermediate network element in the serial network; when the to-be-sent packet at the current node and the to-be-forwarded packet at the previous node can be superimposed, superimposing the to-be-sent packet at the current node and the to-be-forwarded packet at the previous node, to obtain a to-be-forwarded packet at the current node; and sending the to-be-forwarded packet at the current node to a next network element of the network element.

Abstract: A linkage protection system includes an inverter, an anti-potential-induced degradation (PID) apparatus, and an insulation-monitoring apparatus. The anti-PID apparatus is configured to inject a voltage into an input end or an output end of the inverter, to increase or decrease a voltage-to-earth of a photovoltaic system. The insulation-monitoring apparatus is configured to inject an insulation-monitoring voltage into a direct current (DC) side or an alternating current (AC) side of the inverter. The anti-PID apparatus and the insulation-monitoring apparatus directly or indirectly communicate with each other, to learn of information about whether a peer apparatus is operating, and perform linkage control. The anti-PID apparatus and the insulation-monitoring apparatus operate in different time periods.

Abstract: An example energy storage system and a related method are disclosed. In the energy storage system, a controller obtains information about user equipment, and then controls a converter and a battery group based on the information about the user equipment, to supply electric energy to an electric device or receive electric energy from a power sourcing device. In this way, the energy storage system can provide reasonable power scheduling, thereby improving utilization of the energy storage system.

Abstract: A data transmission method and a device are provided. When determining that the first network element and the second network element is disconnected, the first network element stores identification information of the last frame of data and connection status information that are transmitted before the connection is disconnected. When determining a condition for re-communication is meet, the first network element generates a third key based on a first key and a second key, where the first key is a key used to transmit the last frame of data, and the second key includes a key used by the first network element and the second network element to transmit each of j frames of data before the last frame of data. The first network element communicates with the second network element based on the third key, identification information of an ith frame of data, and the connection status information.

Abstract: An energy storage system, a balancing control method for an energy storage system, or a photovoltaic power system are disclosed. The energy storage system includes a controller and three power conversion branches. Each power conversion branch includes a power conversion circuit, or each power conversion branch includes at least two power conversion circuits connected in series. A second end of each power conversion circuit is connected to at least one battery cluster, each battery cluster includes at least two energy storage modules connected in series, each energy storage module includes one direct current/direct current conversion circuit and one battery pack, an output end of each battery pack is connected to an input end of a corresponding direct current/direct current conversion circuit, and an output end of each direct current/direct current conversion circuit is connected in parallel to a balancing bus.

Abstract: An energy storage system and a method for controlling an the energy storage system, includes a plurality of energy storage units. The energy storage unit includes a plurality of battery cells, a plurality of balancing units, a voltage conversion unit, a first switch, a second switch, and a control unit. The control unit is configured to detect fault cases of the plurality of battery cells, and control open and closed states of the first switch and the second switch. According to the application, it can be ensured that each energy storage unit in the energy storage system can continuously work when a battery cell is faulty and when state of charge balance between battery cells is implemented, thereby greatly improving reliability of the energy storage system with low costs.

Abstract: An energy storage system, to improve operating efficiency and system reliability that exist when a component in the energy storage system is faulty, and avoid a waste of resources. The energy storage system includes a plurality of energy storage branches, at least one switch unit, and a control circuit. Each of the energy storage branches includes a first bus, a string-level converter, and a battery string that are sequentially connected in series, a plurality of balancing converters, and a shared bus. The battery string includes a plurality of battery units connected in series, and each of the battery units includes one battery pack. The battery pack is connected to an input side of one corresponding balancing converter, and output sides of the plurality of balancing converters are separately connected to the shared bus.

Abstract: A battery management system is provided in this application, which includes a monitoring module and a sampling module. The sampling module performs sampling on an operating parameter of a direct current converter to obtain target sampling information, and sends the target sampling information to the monitoring module. The monitoring module receives the target sampling information sent by the sampling module, and sends the target sampling information to a central monitoring unit, so that the central monitoring unit determines target charge power for charging an energy storage battery by a power conversion system PCS; and receives a first control instruction sent by the central monitoring unit, and controls the direct current converter to adjust charge power for charging the energy storage battery by the power conversion system PCS to the target charge power.

Abstract: A memory device includes a staircase region and an array region, along a first lateral direction; a wall structure in the staircase region; and a first separation structure in the array region and arranged along the first lateral direction with the wall structure. The wall structure includes dielectric pairs of a first dielectric layer and a second dielectric layer stacked in the staircase region. The first separation structure is vertically through a stack structure in the array region. The stack structure includes pairs of the first dielectric layer and an electrode layer.

Abstract: Embodiments disclose a method and apparatus for updating subject name information of a target information source. A specific embodiment of the method includes: acquiring at least one subject name from to-be-processed information; matching, for a subject name in the at least one subject name, the subject name with pre-acquired at least one initial information source subject name, and setting a weight for the subject name based on a matching result; and sorting the subject name in the at least one subject name and an initial information source subject name in the at least one initial information source subject name according to the weight to obtain updated at least one initial information source subject name.

Abstract: A memory device includes a substrate; and a stack structure, including alternately arranged first dielectric layers and electrode layers. In a first lateral direction, the memory device includes array regions and a staircase region arranged between array regions. In a second lateral direction, the stack structure includes a first block and a second block, each including a wall-structure region and extending along the first lateral direction. The wall-structure regions of the first block and the second block are adjacent to each other and together form a wall structure in the staircase region. The memory device also includes a first separation structure, formed through the stack structure and positioned between the first block and the second block in array regions along the first lateral direction; and second dielectric layers positioned between the first block and the second block in the staircase region, and alternated with the first dielectric layers.

Abstract: A piezoelectric microphone, includes: a wafer substrate including a cavity; a plurality of cantilever beams with a piezoelectric deck structure; a fixed column; a plurality of flexible elastic members; and a connecting section. The plurality of cantilever beams each includes a fixed end and a free end suspended above the cavity. The plurality of cantilever beams is of a structure in which one end is narrow and the other end is wide, and the fixed end is relatively narrow. The fixed column is disposed at the center of the bottom surface of the cavity. The fixed ends of the plurality of cantilever beams are all connected to the top surface of the fixed column. A gap is provided between every two adjacent cantilever beams. The plurality of flexible elastic members is connected to free ends of two adjacent cantilever beams to enable the cantilever beams to vibrate synchronously.

Abstract: Compounds which directly inhibit IRE-1? activity in vitro, prodrugs, and pharmaceutically acceptable salts thereof. Such compounds and prodrugs are useful for treating diseases associated with the unfolded protein response or with regulated IRE1-dependent decay (RIDD) and can be used as single agents or in combination therapies.