Abstract: This application provides a method and an apparatus for sending a physical layer protocol data unit, and a method and an apparatus for receiving a physical layer protocol data unit. The method includes: generating a physical layer protocol data unit PPDU; and sending the PPDU on one or more discrete resource units RUs, where the discrete RU includes a plurality of subcarriers that are discrete in frequency domain. The subcarriers in the discrete RU provided in embodiments are discontiguous, and transmit power of discrete subcarriers increases, so that a transmitting device can transmit the PPDU at higher transmit power. This application is applied to a wireless local area network system supporting a next-generation Wi-Fi protocol of IEEE 802.11ax, for example, 802.11 family of protocols such as 802.11be or EHT.

Abstract: This application provides a method for sending data in a wireless network, and a related apparatus. The method includes: A first device determines a distributed RU allocated to the first device, where the distributed RU includes data subcarriers and pilot subcarriers, all subcarriers of one distributed RU are distributed on a first frequency band, a size of the first frequency band is 20 MHz, the first frequency band includes a maximum of 18 pilot subcarriers that are disposed at an interval, a quantity of pilot subcarriers included in one distributed RU is greater than or equal to 2, and at least two pilot subcarriers included in one distributed RU are spaced by at least M pilot subcarriers; and the first device sends a physical layer protocol data unit PPDU on the distributed RU.

Abstract: This application provides a pilot signal transmission method and a related apparatus. The method includes: A first device determines a first frequency band to which a discrete RU allocated to the first device belongs; and the first device sends a first pilot signal of the first device to a second device on all pilot subcarriers included in the first frequency band. According to embodiments of this application, problems such as narrowband interference and frequency selective fading are avoided, and pilot signal transmission reliability is improved.

Abstract: Disclosed in the present disclosure is an information-based intelligent quality traceability system for fresh milk, which includes a database module configured to store information of the system, a data encryption module configured to encrypt obtained information, an enterprise information module, a raw material information module, a first measurement module, a destruction information module, a transportation information module, a second measurement module, a processing information module, and a delivery information module. Each information module obtains information, a data decryption module is configured to decrypt obtained information, a vehicle condition analysis module is configured to analyze a relation between a vehicle running condition and product quality, and a data analysis module is configured to analyze the data of the system.

Abstract: A k-cluster residue number system has a processor and a memory. The processor is used to generate an addition and subtraction look-up table and a multiplication look-up table based on periodic behaviors of the modulo to compress the sizes of the addition and subtraction look-up table and the multiplication look-up table. The addition and subtraction look-up table has 2mi cells for recording values from zero to (mi?1) in an ascending order twice, wherein mi is a coprime integer of a modular set of the k-cluster residue number system. The multiplication look-up table has S cells, where S = ( m i 2 - 1 4 ) .

Abstract: The present disclosure provides a method for motion control of at least one working head. The method may include obtaining a target region of a subject based on a scan of a high-precision measuring device. The method may also include determining depth information corresponding to the target region based on the target region. The method may further include determining a motion trajectory of the at least one working head based on the depth information.

Abstract: A k-cluster residue number system has a processor and memory coupled to the processor. The processor is used to generate a modular set composed of P coprime integers, generate a dynamic range by taking a product of the P coprime integers, generate quotient indices for all integers in the dynamic range, generate row indices for all integers in the dynamic range, generate column indices for all integers in the dynamic range, and generate a look-up table according to the quotient indices, row indices, the column indices, and all integers in the dynamic range. P is an integer greater than 2, and the P coprime integers include 2. The memory is used to store the look-up table.

Abstract: A monitoring system based on a digital converter station includes a first monitoring terminal deployed at a first-level monitoring side, a second monitoring terminal deployed at a second-level monitoring side, and a third monitoring terminal deployed at a third-level monitoring side; the monitoring terminal at each level includes a communication module, a human-machine interaction module, a device status monitoring module, a device alarm management module, a video fusion processing module, and a data transmission adjustment and control module.

Abstract: A communication system and an operation method thereof are provided. A transmitting device transmits a data unit to a receiving device through a data channel of a communication interface. The transmitting device calculates an original verification information unit of the data unit and synchronously transmits the original verification information unit to the receiving device through a verification information channel of the communication interface based on a transmission timing of the data unit in the data channel. After receiving a current data unit and before receiving a next data unit, the receiving device verifies whether the current data unit received from the data channel has errors in real time based on a current original verification information unit corresponding to the current data unit.

Abstract: A radiation treatment head can include: a radiation source and a primary collimator, wherein the radiation source is configured to emit a radioactive beam; wherein the primary collimator is provided with a plurality of primary collimation channel groups; each of the primary collimation channel groups includes at least one primary collimation channel; and the radiation source and the primary collimator are movable relative to each other, so that the beam emitted from the radiation source is permissible to pass through any one of the primary collimation channels; and wherein the beam emitted from the radiation source, after passing through primary collimation channels of different primary collimation channel groups, forms fields with different sizes of areas on a reference plane.

Abstract: Various disclosed embodiments include illustrative controller units, direct current fast charging (DCFC) units, and methods. In an illustrative embodiment, a controller unit includes a controller and a memory configured to store computer-executable instructions. The computer-executable instructions are configured to cause the controller to determine status of a power electronics module (PEM) of a direct current fast charging (DCFC) unit, and instruct the PEM to control power quality of a three-phase alternating current (AC) grid power signal in response to the determined status being available.

Abstract: A data processing circuit and a fault mitigating method are provided. The method is adapted for a memory having at least one fault bit. The memory provides a block for data storage. A difference between an output of a value of a plurality of bits input to at least one computing layer in a neural network and a correct value is determined. The bits are respectively considered the at least one fault bit. A repair condition is determined based on the difference. The repair condition includes a correspondence between a position where the fault bit is located in the block and at least one non-fault bit in the memory. A value of at least one non-fault bit of the memory replaces a value of the fault bit based on the repair condition.

Abstract: A data processing circuit and a fault-mitigating method are provided. In the method, multiple sub-sequences are divided from sequence data. A first sub-sequence of the sub-sequences is accessed from a memory for a multiply-accumulate (MAC) operation to obtain a first computed result. The MAC operation is performed on a second sub-sequence of the sub-sequences in the memory to obtain a second computed result. The first and the second computed results are combined, where the combined result of the first and the second computed results is related to the result of the MAC operation on the sequence data directly. Accordingly, the error rate could be reduced, so as to mitigate fault.

Abstract: A device includes a fin extending from a semiconductor substrate; a gate stack over the fin; a first spacer on a sidewall of the gate stack; a source/drain region in the fin adjacent the first spacer; an inter-layer dielectric layer (ILD) extending over the gate stack, the first spacer, and the source/drain region, the ILD having a first portion and a second portion, wherein the second portion of the ILD is closer to the gate stack than the first portion of the ILD; a contact plug extending through the ILD and contacting the source/drain region; a second spacer on a sidewall of the contact plug; and an air gap between the first spacer and the second spacer, wherein the first portion of the ILD extends across the air gap and physically contacts the second spacer, wherein the first portion of the ILD seals the air gap.

Abstract: A multi-layer cathode coating for positive electrode of a rechargeable electrochemical cell (or secondary cell) (such as a lithium-ion secondary battery) and a secondary battery including a cathode having a multi-layer cathode coating. Multi-layer cathode coatings containing blends of one or more cathode active materials in certain weight ratios thereof.

Abstract: A precooling device integrated with a cooling distribution unit and a server liquid cooling system are provided. The precooling device includes a liquid cooling row, an adapter assembly, and a cooling distribution unit. The adapter assembly includes a flow joining row and a flow distribution row. The cooling distribution unit supplies a refrigerant from an interior thereof, and includes an outlet and an inlet communicating with the interior. The outlet communicates with the flow distribution row of the adapter assembly to deliver the refrigerant for heat exchange. The refrigerant being performed the heat exchange returns to the liquid cooling row through the flow joining row of the adapter assembly for precooling, and then returns from the liquid cooling row to the cooling distribution unit through the inlet. The refrigerant is precooled before returning to the cooling distribution unit.

Abstract: A cooling device for rack servers and cooling method for rack servers are provided. The cooling device for rack servers includes an environmental temperature sensor, a humidity sensor, a coolant temperature sensor, an electronic valve, and a controller. The controller is configured to compute a dew point temperature according to an ambient temperature and an ambient humidity sensed by the environmental temperature sensor and the humidity sensor, compute a temperature difference between a outlet-liquid temperature of a coolant and the dew point temperature, and control an opening of the electronic valve according to the temperature difference to adjust a liquid flow of the coolant outputted, such that the outlet-liquid temperature dynamically changes following the adjustment of the liquid flow.

Abstract: A safety device comprises a first heat dissipation part, a second heat dissipation part and a connecting part. The connecting part is arranged between the first heat dissipation part and the second heat dissipation part, and at least one heat locking hole disposed thereon. The heat locking hole of the connecting part can reduce a diffusion speed of heat of the connecting part, so that the heat is concentrated between the first heat locking hole and the second heat locking hole, and thus the connecting part can be fused in time at a high temperature.

Abstract: A semiconductor device includes a first metal layer, a second metal layer, and an inter-metal dielectric layer disposed between the first metal layer and the second metal layer. The inter-metal dielectric layer includes: a first dielectric layer disposed on the first metal layer and in direct contact with the first metal layer, wherein the first dielectric layer has a stress value less than 0; a second dielectric layer disposed on the first dielectric layer, wherein the second dielectric layer has a stress value greater than 0; and a third dielectric layer disposed on the second dielectric layer, wherein the third dielectric layer has a stress value less than 0. A thickness of the third dielectric layer is greater than a thickness of the second dielectric layer, and the thickness of the second dielectric layer is greater than a thickness of the first dielectric layer.

Abstract: A thermoplastic polyolefin composition comprises: (A) a polypropylene polymer; (B) an elastomer component; (C) an additive component; and (D) a scavenger component comprising a polyacetoacetate compound having the Formula (I) defined herein and calcium carbonate. And an article is made from the thermoplastic polyolefin composition.