Abstract: A powertrain, a control method, and a hybrid electric vehicle. The powertrain includes a motor controller unit and a motor. The motor controller unit includes N bridge arms, and the motor includes N motor windings corresponding to the N bridge arms. Each of the N bridge arms includes a first end and a second end, the first end of each bridge arm is connected to a positive bus, the second end of each bridge arm is connected to a negative bus, a midpoint of each bridge arm is connected to one end of one motor winding, the other end of each of the N motor windings is connected to one end of a power battery, and the other end of the power battery is connected to the positive bus or the negative bus.

Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current (DC)/DC conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.

Abstract: Quantum preprocessing methods, devices, storage medium are disclosed. An embodiment includes: acquiring element information of a first matrix A and a first vector b in a linear system Ax={right arrow over (b)}; constructing a new matrix M for linear system preprocessing; computing a second matrix A? and a second vector b? for constructing a quantum circuit, according to the new matrix M; and constructing, a first quantum circuit representing a quantum state evolution of a specific class of element in the second matrix A?, and a second quantum circuit representing a quantum state evolution of a specific class of element in the second vector b?, and executing a quantum state evolution operation respectively on the first quantum circuit and the second quantum circuit, to obtain an evolved quantum state of the first quantum circuit and an evolved quantum state of the second quantum circuit.

Abstract: The present disclosure discloses a solar module, including solar cells and electrode lines. Each of the solar cells includes a solar cell substrate and a plurality of busbars located on one side of the solar cell substrate. Each of the electrode lines has one end connected to the busbar on a front surface of one solar cell, and the other end connected to the busbar on a rear surface of another solar cell adjacent to the one cell sheet. First electrode pads are provided at each busbar, a number of the first electrode pads ranges from 6 to 12. A relation between a diameter of the electrode line and a number of busbars is 2.987x?1.144?1.9<y<3.2742x?1.134+1.7, where x denotes the diameter of the electrode line, and y denotes the number of busbars.

Abstract: Disclosed are a method, device, storage medium and electronic device for data reading, applied to a pre-constructed quantum random access memory (QRAM) architecture for accessing data, wherein the QRAM architecture is a binary tree structure and comprises the following nodes: N layers of subtree node and one layer of leaf node, the N being an address length; the method includes: determining an address represented by a quantum state distributedly stored in each layer of subtree node; and moving, according to the address, data stored in the leaf node to the upper layer of subtree node via a first preset quantum circuit, until data corresponding to the address is output at a subtree node at the root of the binary tree structure.

Abstract: A secondary battery contains cyclic siloxane and/or ring-opening polymerization derivative thereof, where a cyclic structure of the cyclic siloxane has at least one structure, one and only one of R1 and R2 contains a group with stronger electron withdrawing property than phenyl, and the group is directly linked to Si.

Abstract: Disclosed are a method and an apparatus for amplitude estimation of a quantum circuit. The method includes: calculating a first difference value between a current angle upper limit value and a current angle lower limit value corresponding to a to-be-estimated amplitude of a target quantum state, and determining the first difference value as a target difference; determining, a next angle amplification factor and a next flag parameter corresponding to a next iteration step; amplifying the target quantum circuit by the next angle amplification factor; calculating a second difference value between a next angle upper limit value and a next angle lower limit value of the to-be-estimated amplitude, and determining the second difference value as a target difference; and determining, based on an angle upper limit value and an angle lower limit value that reach the precision threshold, a probability estimated value corresponding to a to-be-estimated quantum bit.

Abstract: Disclosed are a method and device for constructing a quantum circuit of a QRAM architecture, the QRAM architecture being configured for accessing data and being a binary tree structure, the method including: partitioning the binary tree structure into basic circuit structures, wherein a basic circuit structure comprises address bits and data bits of one subtree node and data bits of two child nodes in the lower layer of the one subtree node; determining qubits required for a basic quantum circuit to be constructed, according to qubits included in the basic circuit structure; determining an input and an output of the basic quantum circuit to be constructed, according to action relationships between the qubits required for the basic quantum circuit to be constructed; and constructing a basic quantum circuit corresponding to the basic circuit structure, according to the input and the output using the required qubits and quantum logic gates.

Abstract: A solar cell and a photovoltaic module are provided. The solar cell includes a substrate having a front side and a back side, a plurality of front main busbars and a plurality of front finger electrodes, each front finger electrode being electrically connected with the plurality of front main busbars, the number of the plurality of front main busbars is 6 to 20, and a plurality of back main busbars and a plurality of back finger electrodes, each back finger electrode is electrically connected with the plurality of back main busbars, the number of the plurality of the back main busbars is 6 to 20. For each of at least one of the plurality of front main busbars, the front main busbar has 4 to 10 first solder pads.

Abstract: An energy conversion apparatus, a motor, a power system, and a vehicle are provided. The energy conversion apparatus may integrate a motor drive function by using a three-phase bridge arm converter and a motor winding, and integrate an alternating current charging function by using a two-phase two-bridge-arm converter and a transformer. In this way, the energy conversion apparatus can integrate the charging function and the motor drive function. When the energy conversion apparatus is installed on an electric vehicle, a vehicle integration level can be increased, a structure layout of the electric vehicle can be simplified, and costs and a volume of the electric vehicle can be reduced.

Abstract: Provided are a carrying device, a warehousing logistics system, and a pallet carrying method. The carrying device is configured to carry the pallet, and includes: a vehicle body configured to autonomously move; a mounting bracket horizontally and slidably disposed on the vehicle body; and a fork arm, where a first end of the fork arm is connected to the mounting bracket, the fork arm is configured to protrude horizontally along with movement of the mounting bracket to be inserted into a fork hole of the pallet, and raise and lower relative to the vehicle body to lift the pallet, and the vehicle body and the mounting bracket are configured to, when the fork arm lifts the pallet, enable the pallet to be located above the vehicle body by relative movement between the vehicle body and the mounting bracket.

Abstract: A motor, a charging apparatus and a powertrain. The motor of the charging apparatus includes a rotor, a stator, a primary coil, and a secondary coil. The stator includes a stator core. The primary coil is wound around a yoke part of the stator core, and the primary coil is coupled to an external power supply. The secondary coil is wound around the yoke part of the stator core, and the secondary coil and the primary coil are wound around different groove structures inside the stator core. The primary coil and the secondary coil implement coupling voltage transformation through the stator core, to step up or step down an output voltage of the external power supply.

Abstract: Techniques are described to perform paging related operation or power saving related operation. An example wireless communication method includes receiving, by a communication device in a low power radio resource control (RRC) state, a first signal that includes a first set of parameters, and performing, by the communication device, a paging related operation based at least on the first set of parameters or a power saving related operation based at least on the first set of parameters.

Abstract: A material vehicle, a traction apparatus and system, a method for controlling the bidirectional traveling of a material vehicle, and a storage medium.

Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current (DC)/DC conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.

Abstract: Disclosed are a method and an apparatus for amplitude estimation of a quantum circuit. The method includes: calculating a first difference value between a current angle upper limit value and a current angle lower limit value corresponding to a to-be-estimated amplitude of a target quantum state, and determining the first difference value as a target difference; determining, a next angle amplification factor and a next flag parameter corresponding to a next iteration step; amplifying the target quantum circuit by the next angle amplification factor; calculating a second difference value between a next angle upper limit value and a next angle lower limit value of the to-be-estimated amplitude, and determining the second difference value as a target difference; and determining, based on an angle upper limit value and an angle lower limit value that reach the precision threshold, a probability estimated value corresponding to a to-be-estimated quantum bit.

Abstract: A computational fluid dynamics simulation method, apparatus based on a quantum algorithm and a device are disclosed.

Abstract: Disclosed is a coordinated peak shaving optimization method for a plurality of power supplies based on a fluctuation characteristic of a renewable energy source, including the following steps: s1: determining a weekly generated electricity quantity of hydropower based on an available capacity and a storage capacity of an electricity quantity; s2: predicting a renewable energy power generation curve and a load curve of a system weekly; s3: determining a start point of peak shaving of the hydropower based on an external transmission curve, the renewable energy generation curve, and the load curve of the system and a generating capacity of the hydropower; s4: determining a weekly peak shaving demand of the system; and s5: establishing an optimization model with a maximum peak shaving demand. The present disclosure proposes a reasonable arrangement for peak shaving, so as to resolve an accommodation problem caused by large-scale access of a renewable energy source.

Abstract: Examples described herein relate to a programmable packet processing pipeline configured to: access a data corresponding to multiple bins, respective bins associated with multiple packet flows and for respective bins: identify a single flow associated with a bin of the multiple bins as a candidate heavy hitter flow and determine a different packet flow as the candidate heavy hitter flow for the bin of the multiple bins.

Abstract: An electric power conversion system and a vehicle, to improve vehicle availability. The electric power conversion system may receive electric energy provided by a first power supply, and supply power to at least one load module. The system may include a first direct current to direct current conversion module and a second direct current to direct current conversion module. The first direct current to direct current conversion module is configured to perform voltage conversion processing on the electric energy and provide the electric energy to the at least one load module. The second direct current to direct current conversion module is configured to perform voltage conversion processing on the electric energy and provide the electric energy to the at least one load module.