Abstract: Embodiments of the present disclosure provide a method and apparatus for estimating an angle of arrival of a channel Sounding Reference Signal (SRS). By means of the present disclosure, a plurality of passive antennas receive, in a time-division manner, SRSs configured at a specified comb position, then a same active antenna channel amplifies and samples the SRSs received by the plurality of passive antennas, and the amplified and sampled SRSs are segmented, and angles of arrival of the SRSs are estimated based on each segment of the SRSs.

Abstract: A three-phase alternating current (AC) synchronous machine including a stator having a plurality of stator slots; a plurality of stator windings arranged in a Delta connection and received within the stator slots; and a common mode filter included with the stator, wherein filter windings from the common mode filter are circumferentially wound around a magnetic core of the common mode filter and are serial connected to the stator windings.

Abstract: Provided is a method for link transition. The method is performed by a station (STA) multi-link device (MLD), and includes: receiving power information of each of candidate access point (AP) MLDs; and transmitting power control information in a process of transitioning a first source link to a first target link.

Abstract: Embodiments of the disclosure provide a control circuit operable to control voltage delivery to a multi-component load. The control circuit is electronically coupled to a first component of the multi-component load. The control circuit is further electronically coupled to a second component of the multi-component load. The control circuit is operable to, responsive to an output voltage of a source, generate a second component voltage and provide the second component voltage to the second component of the multi-component load. A peak value of the second component voltage is less than the output voltage.

Abstract: A system is provided and used in the radar field. The system includes: a wideband signal generation unit configured to generate a first wideband signal; a second signal generation unit configured to generate a first single-frequency signal; a first frequency multiplication unit configured to perform frequency multiplication on the first wideband signal in optical domain to obtain a second wideband signal; a second frequency multiplication unit configured to perform frequency multiplication on the first single-frequency signal to obtain a second single-frequency signal; and a frequency mixing unit configured to perform frequency mixing on the second wideband signal and the second single-frequency signal to obtain a millimeter-wave signal. In this application, frequency multiplication is performed on a single-frequency signal in electrical domain and on a wideband signal in optical domain, so that a millimeter-wave signal with low phase noise can be obtained.

Abstract: Disclosed are a 4-iodopyrazole coordination compound and a preparation method and use thereof. The preparation method includes the following steps: placing CuCl2·2H2O and 4-iodopyrazole in a container at a certain molar ratio; adding absolute ethanol and dichloromethane to the container at a certain volume ratio to completely dissolve the CuCl2·2H2O and the 4-iodopyrazole; sealing and puncturing the container, and leaving the container to stand at room temperature for 2-4 days to obtain green bulk crystals; and washing, filtering and drying the green bulk crystals to obtain the 4-iodopyrazole coordination compound. The copper chloride-linked 4-iodopyrazole coordination compound prepared in the present application is a dual-function inhibitor, has a high inhibition rate, low dosage, good stability, difficulty in leaching with water, low toxicity, and low environmental impact, and thus can be used in fertilizers.

Abstract: Disclosed are a 4-iodopyrazole coordination compound and a preparation method and use thereof. The preparation method includes the following steps: placing CuCl2·2H2O and 4-iodopyrazole in a container at a certain molar ratio; adding absolute ethanol and dichloromethane to the container at a certain volume ratio to completely dissolve the CuCl2·2H2O and the 4-iodopyrazole; sealing and puncturing the container, and leaving the container to stand at room temperature for 2-4 days to obtain green bulk crystals; and washing, filtering and drying the green bulk crystals to obtain the 4-iodopyrazole coordination compound. The copper chloride-linked 4-iodopyrazole coordination compound prepared in the present application is a dual-function inhibitor, has a high inhibition rate, low dosage, good stability, difficulty in leaching with water, low toxicity, and low environmental impact, and thus can be used in fertilizers.

Abstract: Provided herein are oseltamivir analogs useful for the treatment and prevention of viral infections, pharmaceutical compositions comprising the same and methods preparation and use thereof.

Abstract: A rotor assembly used in an induction machine including a rotor core having a plurality of conductor bar slots spaced circumferentially around the rotor core; a rotor shaft including a fluid supply channel configured to receive fluid from a fluid source; and conductor bars, received within the conductor bar slots, that receive fluid from the fluid supply channel through bores formed in the conductor bars or over an outer surface of the conductor bars.

Abstract: A rotor of a motor and method of assembly. The rotor includes a shaft hub. A plurality of ministacks is disposed along a length of the shaft hub to form a stack having a stack length. Each ministack has a same length and the stack length is less than a hub length of the shaft hub. The rotor can be placed in a stator core to assemble the motor.

Abstract: A three-phase alternating current (AC) synchronous machine including a stator having a plurality of stator slots; a plurality of stator windings arranged in a Delta connection and received within the stator slots; and a common mode filter included with the stator, wherein filter windings from the common mode filter are circumferentially wound around a magnetic core of the common mode filter and are serial connected to the stator windings.

Abstract: An electrochemical apparatus, including a housing. The housing includes a main body part and a sealed part extending outward from an edge of the main body part. The main body part is configured to accommodate an electrode assembly. The sealed part includes a first outer edge, an outer arc edge, and a second outer edge. The outer arc edge connects the first outer edge and the second outer edge. The outer arc edge protrudes toward the main body part. A minimum curvature radius of the outer arc edge is rmin mm, satisfying: rmin?0.3, which can reduce the stress concentration at the outer arc edge of the sealed part under drop conditions, thereby reducing the risk of tear and damage to the sealed part of a battery under drop conditions, which otherwise causes safety accidents.

Abstract: A stator for an electric machine comprises a stator core and a winding positioned on the stator core. The stator core includes a plurality of teeth defining a plurality of slots. The winding is comprised of a plurality of segmented conductors connected together to provide a plurality of parallel paths per phase for the winding, each conductor comprising (i) an end loop provided on a crown end of the stator core, (ii) two legs extending through the slots, and (iii) two leg ends extending out of the slots on a connection end of the stator core, each leg end having a twist portion. The legs of the conductors are arranged in layers in the slots, wherein the layers include a total number of layers (L), L being greater than five and L/2 being an odd whole number. Each leg end extending from each of the layers has a common twist associated with the layer from which said leg extends.

Abstract: Embodiments of the disclosure provide a control circuit operable to control voltage delivery to a multi-component load. The control circuit is electronically coupled to a first component of the multi-component load. The control circuit is further electronically coupled to a second component of the multi-component load. The control circuit is operable to, responsive to an output voltage of a source, generate a second component voltage and provide the second component voltage to the second component of the multi-component load. A peak value of the second component voltage is less than the output voltage.

Abstract: The disclosure provides a strap pulling device, the strap pulling device comprises a cutter mechanism, a first strap pulling mechanism and a second strap pulling mechanism. The first strap pulling mechanism and the second strap pulling mechanism are configured to alternately clamp a strap at a pulling position located upstream of a cutting position and pull the strap to a transfer position located downstream the cutting position. When the first strap pulling mechanism pulls the clamped strap to the transfer position, the second strap pulling mechanism clamps the strap at the pulling position, the cutter mechanism cuts the strap at the cutting position to acquire a strap segment. When the second strap pulling mechanism pulls the clamped strap to the transfer position, the first strap pulling mechanism clamps the strap at the pulling position, the cutter mechanism cuts the strap at the cutting position to acquire a strap segment.

Abstract: The present disclosure provides a battery piece feeding device and a soldering stringer, the battery piece feeding device is configured to lay battery pieces onto a soldering conveying device, the battery piece feeding device includes two picking mechanisms, both of the picking mechanisms are configured to alternately pick up the battery pieces from a battery piece picking position and lay the picked battery pieces onto the soldering conveying device. When one picking mechanism picks up the battery piece from the battery piece picking position, the other picking mechanism lays the picked battery piece onto the soldering conveying device. By arranging the two picking mechanisms and controlling the two picking mechanisms to alternately pick up the battery pieces from the battery piece picking position and lay the picked battery pieces onto the soldering conveying device, the battery piece feeding device greatly improves the battery piece feeding efficiency.

Abstract: The disclosure provides a strap pulling device, the strap pulling device comprises a cutter mechanism, a first strap pulling mechanism and a second strap pulling mechanism. The first strap pulling mechanism and the second strap pulling mechanism are configured to alternately clamp a strap at a pulling position located upstream of a cutting position and pull the strap to a transfer position located downstream the cutting position. When the first strap pulling mechanism pulls the clamped strap to the transfer position, the second strap pulling mechanism clamps the strap at the pulling position, the cutter mechanism cuts the strap at the cutting position to acquire a strap segment. When the second strap pulling mechanism pulls the clamped strap to the transfer position, the first strap pulling mechanism clamps the strap at the pulling position, the cutter mechanism cuts the strap at the cutting position to acquire a strap segment.

Abstract: The present disclosure provides a battery piece feeding device and a soldering stringer, the battery piece feeding device is configured to lay battery pieces onto a soldering conveying device, the battery piece feeding device includes two picking mechanisms, both of the picking mechanisms are configured to alternately pick up the battery pieces from a battery piece picking position and lay the picked battery pieces onto the soldering conveying device. When one picking mechanism picks up the battery piece from the battery piece picking position, the other picking mechanism lays the picked battery piece onto the soldering conveying device. By arranging the two picking mechanisms and controlling the two picking mechanisms to alternately pick up the battery pieces from the battery piece picking position and lay the picked battery pieces onto the soldering conveying device, the battery piece feeding device greatly improves the battery piece feeding efficiency.

Abstract: An electrochemical apparatus includes a housing having a cavity and including a wall, where the wall is provided with a stress-weak zone. In this application, the stress-weak zone arranged on the wall of the housing of the electrochemical apparatus is a weak part of the housing. When the electrochemical apparatus generates gas under conditions such as short circuit, high temperature, and overcharge, a pressure inside the housing increases. Under the action of the pressure, the stress-weak zone can form an opening, and the opening allows the inner cavity of the housing to communicate with the external environment in which the electrochemical apparatus is located, to discharge the gas in the inner cavity of the housing, thereby reducing risks of expansion, deformation, or even explosion of the electrochemical apparatus caused by gas generation inside the electrochemical apparatus, and improving safety of the electrochemical apparatus.

Abstract: A stator for an electric machine comprises a stator core and a winding positioned on the stator core. The stator core includes a plurality of teeth defining a plurality of slots. The winding is comprised of a plurality of segmented conductors connected together to provide a plurality of parallel paths per phase for the winding, each conductor comprising (i) an end loop provided on a crown end of the stator core, (ii) two legs extending through the slots, and (iii) two leg ends extending out of the slots on a connection end of the stator core, each leg end having a twist portion. The legs of the conductors are arranged in layers in the slots, wherein the layers include a total number of layers (L), L being greater than five and L/2 being an odd whole number. Each leg end extending from each of the layers has a common twist associated with the layer from which said leg extends.