Abstract: A blower apparatus includes a blower housing, a motor and a blade base. The blower housing has an air inlet and an air outlet. The blade base is driven by the motor to rotate along a base axis for carrying air from the air inlet to the air outlet. The plurality of fan blades extend from the blade base. Each fan blade includes multiple edges. A first edge is closest to the base axis. A second edge connects the first edge and a third edge. The third edge is farthest from the base axis. An angle between the first edge of the fan blade and the base axis is equal or less than 80 degrees.

Abstract: An electric drive gearbox assembly with stepped hole positioning is disclosed. Specifically, the electric drive gearbox assembly comprises a first housing, a second housing and a positioning pin. The first housing is provided with a first positioning hole on its connecting surface. The second housing is provided with a second positioning hole corresponding to the first positioning hole. The first housing and the second housing are positioned and connected through the first positioning hole, the second positioning hole and the positioning pin. The first positioning hole and/or the second positioning hole are stepped holes. The stepped hole comprises a guiding section close to an open end of the stepped hole and an engaging section far away from the open end of the stepped hole. An aperture of the guiding section is larger than an aperture of the engaging section. The guiding section is used to guide the positioning pin into the engaging section.

Abstract: A sphere precision machining device and a machining method comprise a cavity, an abrasive grain stream, and a circulation device. The cavity holds the workpiece, and comprises two hollow hemispheres, each of said two hemispheres being provided with a main flow channel. Said main flow channel is connected to the cavity. One end of the main flow path of each of the two said hemispheres is connected to a circulating means by which a stream of abrasive grains is made to grind the workpiece. A plurality of main flow channels are disposed homogeneously inside the hemisphere, each of said main flow channels being provided with a plurality of branch flow channels connected to the cavity, said branch flow channels tapering in the flow direction. The present disclosure uses the difference in abrasive grain flow pressure on the surface of the workpiece to achieve precision machining.

Abstract: An array grouping-based communication method and a communication apparatus are provided. A first signal is received from a first communication device using M groups of analog weights, where at least two groups of analog weights in the M groups of analog weights are different, and M is an integer greater than or equal to 2. Channel estimation is performed based on the first signal to obtain M channel estimation results, where the M channel estimation results are arranged in one-to-one correspondence with the M groups of analog weights. Signal receiving or sending processing is performed based on the M channel estimation results using a target analog weight, where the target analog weight is obtained based on the M groups of analog weights.

Abstract: Provided are an in-situ mechanical micro-electro-mechanical device and system, as well as a double-tilt sample holder. A first displacement member is arranged in a first hollow-out cavity of a base through a first mechanical measurement assembly, extends to a third hollow-out cavity of the base, and is provided with a first sample carrying portion at an extending end thereof. A second displacement member is arranged in a second hollow-out cavity of the base through a second mechanical measurement assembly, extends to the third hollow-out cavity, and is provided with a second sample carrying portion at an extending end thereof. The second sample carrying portion is nested with the first sample carrying portion. One of the first displacement member and the second displacement member is fixedly arranged, and the other of the first displacement member and the second displacement member is connected to a driving component.

Abstract: The present disclosure relates to compositions and methods for improving site-directed integration frequency in the genome of plant cells.

Abstract: The disclosure provides a backpack blower, a backpack assembly and a backpack power assembly. The backpack blower includes a backpack assembly and a blower body. The backpack assembly is used for an operator to carry and comprises a battery pack cavity to house a battery pack. The blower body is mounted on the backpack assembly. The battery pack supplies power to the blower body. The blower body includes a motor duct assembly, an air inlet assembly assembled and fixed with the backpack assembly, and an air outlet assembly connected with the air inlet assembly. The air inlet assembly includes an air inlet and an air inlet tube connected to the air inlet. The air inlet tube is connected with the air outlet assembly. The motor duct assembly is housed in the air outlet assembly.

Abstract: A gearbox casing is provided in which a bottom part or a side part of the gearbox casing has a number of first coolant tanks. The gearbox casing above a bottom part of the first coolant tanks is provided therein with a lubricating liquid, and the first coolant tanks are used to cool the lubricating liquid. A first coolant tank is provided therein with a number of parallel partition walls, by which the first coolant tank is separated into at least two communicated sub-tanks that are provided with first fixed guide ribs and first suspended guide ribs to divide the coolant.

Abstract: The invention relates to immunogenic compositions comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B Streptococcus (GBS), conjugated to a carrier protein, and optionally including an aluminum-based adjuvant. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.

Abstract: Embodiments provide a notification method, an apparatus, and a communications system, and relate to the communications field, to ensure that a DU performs accurate L2 handling in a CU-DU architecture. The notification method includes: a CU sends a first message to the DU, where the first message includes an ID of a first DRB on which bearer type change occurs and first indication information indicating the DU to perform L2 handling; or the first message includes an ID of a first DRB and second indication information indicating that bearer type change occurs. The CU receives a second message sent by the DU, where the second message includes a cell group configuration of the L2 handling.

Abstract: This application provides a communication method and a communication system. A central unit (CU) obtains a quality of service (QoS) parameter of a QoS data flow and performs mapping the QoS data flow to a bearer based on the QoS parameter of the QoS data flow. The CU determines a QoS parameter of the bearer based on the QoS parameter of the QoS data flow and sends a context setup request message to a distributed unit (DU), wherein the context setup request message comprises the QoS parameter of the bearer, the QoS parameter of the QoS data flow and the mapping relationship between the QoS data flow and the bearer.

Abstract: The invention relates to immunogenic compositions comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B streptococcus (GBS), conjugated to a carrier protein, and optionally including an aluminum-based adjuvant. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.

Abstract: A network optimization method includes sending, by a first access network device, first information to a terminal device, and receiving, by the first access network device, second information from the terminal device. The first information includes application layer measurement configuration information, network slice scope information or a service type. The network slice scope information includes at least one network slice identifier. The second information includes a first application layer measurement result corresponding to the first information and identification information corresponding to the first application layer measurement result. The identification information includes an identifier of a protocol data unit (PDU) session.

Abstract: An electric drive power transmission system box assembly is provided having stepped pin positioning and a mounting method of the electric drive power transmission system box assembly. The box assembly includes a housing shaft string assembly, stepped pins, a first housing, and a first bearing. The housing shaft string assembly includes a housing and a shaft string supported on the housing. Each stepped pin includes a matching section and a guide section, the diameter of the matching section is greater than the diameter of the guide section, a tail end portion of the matching section is fixed in a fixing pin hole of the housing, the first housing is mounted and fixed to the housing shaft string assembly under the guide of the guide section, and a rear end of the shaft string is supported on the first housing by means of the first bearing.

Abstract: The disclosure provides data transmission methods and apparatuses. One example method includes when the terminal device needs to perform the cross-network movement, the terminal device sends a message to a network element of a network accessed by the terminal device, to notify that the terminal device is to perform the cross-network movement from a source network to a target network. Therefore, during the movement of the terminal device, a network side pauses transmission of user plane data of the terminal device, and buffers data that is not sent before the terminal device performs the cross-network movement. After accessing the target network, the network side sends the buffered data to the terminal device.

Abstract: Embodiments provide a notification method, an apparatus, and a communications system, and relate to the communications field, to ensure that a DU performs accurate L2 handling in a CU-DU architecture. The notification method includes: a CU sends a first message to the DU, where the first message includes an ID of a first DRB on which bearer type change occurs and first indication information indicating the DU to perform L2 handling; or the first message includes an ID of a first DRB and second indication information indicating that bearer type change occurs. The CU receives a second message sent by the DU, where the second message includes a cell group configuration of the L2 handling.

Abstract: The present specification discloses video matching. In a computer-implemented method, a plurality of feature vectors of a target video is obtained. A candidate video similar to the target video is retrieved from a video database based on the plurality of feature vectors of the target video. A time domain similarity matrix feature map is constructed between the target video and the candidate video based on the target video and the candidate video. Using the time domain similarity matrix feature map as an input into a deep learning detection model, a video segment matching the target video in the candidate video and a corresponding similarity is output.

Abstract: The present disclosure relates to an information distribution method, apparatus, and computer readable storage medium, which relates to the field of information processing. The information distribution method includes: determining a recommended value of a target indicator corresponding to a user based on a historical indicator of information historically distributed by the user and a historical indicator of a category to which the user belongs, wherein an indicator is determined based on resources gained and consumed through distributed information; recommending the recommended value of the target indicator to the user; determining target recipients of target information to be distributed by the user based on a target indicator input by the user, wherein the target indicator input by the user is determined based on the recommended value of the target indicator by the user; and sending the target information to the target recipients.

Abstract: This application provides a mobility management method and a communication apparatus. The method includes: A first DU receives a first measurement result reported by a terminal device, determines, based on the first measurement result, target beam information for the terminal device to perform mobility management and/or a target cell corresponding to the target beam information, notifies a CU of the target beam information and/or the target cell, and requests, through the CU, a second DU to confirm whether to accept the target beam information and/or the target cell. The first measurement result includes measurement results corresponding to a current serving cell of the terminal device and at least one non-serving cell of the terminal device.

Abstract: An electric drive power transmission system box assembly is provided having stepped pin positioning and a mounting method of the electric drive power transmission system box assembly. The box assembly includes a housing shaft string assembly, stepped pins, a first housing, and a first bearing. The housing shaft string assembly includes a housing and a shaft string supported on the housing. Each stepped pin includes a matching section and a guide section, the diameter of the matching section is greater than the diameter of the guide section, a tail end portion of the matching section is fixed in a fixing pin hole of the housing, the first housing is mounted and fixed to the housing shaft string assembly under the guide of the guide section, and a rear end of the shaft string is supported on the first housing by means of the first bearing.