Abstract: A method, circuit, audio playback device, and system of sending and receiving Bluetooth packet loss data is disclosed. The method includes: step S100, receiving a forwarding request sent by a second audio playback device in a receiving state; step S200, monitoring the retransmission information of an audio source device retransmitting current audio data on Link 1 according to the forwarding request; step S300, determining whether the retransmission information is monitored; step S400, switching from the receiving state to a sending state; and step S500, forwarding the current audio data to the second audio playback device through Link 2 in accordance with the time sequence of the audio source device retransmitting the current audio data. The signal can be provided to the second audio playback device from different locations.

Abstract: A method for preparing Portland cement includes: respectively weighing iron slag, copper slag, vanadium slag, and nickel slag and grinding, to yield prefabricated iron slag, prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag; weighing mica and kaolinite, mixing, and grinding to obtain aluminous raw materials; evenly mixing the prefabricated iron slag and the aluminous raw materials, and calcining, to yield an iron-aluminum eutectic mineral; weighing the marble, fluorite, dolomite, and quartz, evenly mixing the marble, fluorite, dolomite, and quartz with the prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag to yield a first mixture; grinding the iron-aluminum eutectic mineral to yield powders, and calcining a second mixture of the first mixture and the powders, to yield the cement clinker; and cooling the cement clinker, and grinding a third mixture of the cooled cement clinker and the gypsum, to yield the Portland cement.

Abstract: The noise reduction earpad includes: an earpad body and an earpad cover, the earpad body is made of a porous flexible material or a foam flexible material and being in a ring shape and being connected to the connection surface, the earpad body and the connection surface jointly forming a sealed and soundproof space provided with a chamber structure having an opening; the earpad cover includes a cloth cover covering at least an exposed outer surface of the earpad body and made of a cloth material and a sealed and soundproof film attached to a side surface of cloth cover facing the earpad body and made of a soft rubber, a laying area of the sealed and soundproof film is corresponding to an outer surface of the earpad body facing away from the sealed and soundproof space.

Abstract: An inspection system for inspecting optical assemblies of a LiDAR which includes a transmitting optical assembly at a transmitting end and a receiving optical assembly at a receiving end. The inspection system includes: a detection laser and a detection probe. The detection laser is configured to emit a detection laser beam that passes through the transmitting optical assembly and/or the receiving optical assembly, and exits the LiDAR or is incident to the detection probe. The detection probe is configured to receive the detection laser beam or an echo of the detection laser beam after being reflected off an object, and convert it into an electrical detection signal. The inspection system further includes a signal processing unit that communicates with the detection probe to receive the electrical detection signal, and is configured to determine an operation state of the optical assemblies based on the electrical detection signal.

Abstract: A localization and mapping system and method for a motor vehicle is disclosed and includes at least one camera configured to obtain images of an environment surrounding the motor vehicle, at least one sensor configured to obtain location information for objects surrounding the motor vehicle and a controller configured to receive the images captured by the at least one camera and the location information obtained by the at least one sensor. The controller enhances the captured images utilizing a neural network and combines the enhanced images with the location information to localize the vehicle within the mapped environment.

Abstract: Embodiments described herein provide methods and apparatuses for providing a network function, NF, service producer access to a key set, wherein the key set is for use in verifying an access token received from an NF service consumer. A method in a network repository function, NRF, comprises receiving a request from the NF service producer to provide an indication of services provided by the NRF; and responsive to the request, transmitting a first address where the key set can be retrieved, as part of an indication of an authorization service.

Abstract: There is provided a method for prioritising a plurality of first NF nodes of at least one service producer. Transmission of a first message is initiated (202) towards a network repository function (NRF) node. The first message comprises information indicative of a plurality of criteria and an order of importance of the criteria. The information is for use in assigning priority information to the plurality of first NF nodes. For each first NF node, the priority information is indicative of a priority with which the first NF node is to be selected to provide a service relative to at least one other first NF node of the plurality of first NF nodes and the priority information is assigned based on one or more criteria of the criteria that the first NF node meets and the position of the one or more criteria in the order of importance of the criteria.

Abstract: A motor system includes an engine having one or more cylinders, an electronic control unit, an exhaust treatment system in fluid connection with and downstream of the one or more cylinders. The exhaust treatment system includes an exhaust line, a combustion zone downstream, a combustion ignition source in the combustion zone, a catalyst downstream of an in thermal communication with the combustion zone. A method of heating a catalyst during an engine cold start and a method of initiating regular operating conditions of an engine having one or more cylinders are also described.

Abstract: An automated parking system for a vehicle includes a camera configured to obtain images of objects proximate the vehicle, and a controller configured to review the obtained images of objects proximate the vehicle to classify an environment proximate the vehicle, determine a type of parking lot associated with the classified location and initiate an automated parking function of the vehicle corresponding to the determined type of parking lot.

Abstract: According to examples, an apparatus may include a processor and a memory on which is stored machine-readable instructions that when executed by the processor, may cause the processor to identify configuration information to be used by an on-premise access management service to provide authentication services to applications by users. The processor may also transform the identified configuration information into a transformed set of configuration information to be used by a cloud-based access management service to provide authentication services to the applications by users. In addition, the processor may store the transformed set of configuration information for use by the cloud-based access management service to provide authentication services to the applications by users to migrate authentication of the users from the on-premise access management service to the cloud-based access management service.

Abstract: A display device, including: a light source, used for emitting light source light; a control unit, used for controlling a drive current for the light source, the modulation period of each frame of image to be displayed comprising at least one pulse modulation period, and within the pulse modulation period, the drive current for the light source being an overshoot current so that the average luminous brightness of the light source in the modulation period reaches preset brightness; and a light modulation unit, used for modulating the light source light according to image data of the image to be displayed and the luminous brightness of the light source to obtain a modulated image.

Abstract: A system for awake functional magnetic resonance imaging (fMRI) of an animal subject includes an RF coil apparatus and a tunnel apparatus. The RF coil apparatus includes an RF coil configured to be implanted on the animal subject, a head post coupled to the RF coil and comprising a housing and a circuit board positioned within the housing, and a connector coupled to the circuit board. The tunnel apparatus includes a first end having an opening, a second end, a slot positioned on a top side of the tunnel apparatus and configured to movably receive the head post of the RF coil apparatus, and an inner region configured to receive the animal subject and allow the animal subject to move from the first end to the second end.

Abstract: The present disclosure discloses a method for performing a matrix multiplication on an on-chip system and related products. The on-chip system is included in a computing processing apparatus of a combined processing apparatus. The computing processing apparatus includes one or a plurality of integrated circuit apparatuses. The combined processing apparatus further includes an interface apparatus and other processing apparatus. The computing processing apparatus interacts with other processing apparatus to jointly complete a computing operation specified by a user. The combined processing apparatus further includes a storage apparatus. The storage apparatus is connected to the apparatus and other processing apparatus, respectively. The storage apparatus is configured to store data of the apparatus and other processing apparatus.

Abstract: An access and mobility management function, AMF, entity receives an initial registration request from a communication device and transmits, responsive thereto, a network function, NF, discovery request to a network function repository function, NRF, entity, the NF discovery request including a communication device identifier and an NF type identifier. The NRF entity matches the communication device identifier with one of a plurality of communication device identifier ranges configured by the NRF entity, extracts a group identifier, groupId, configured for the one of the plurality of communication device identifier ranges, builds a list of registered NF profiles matching the NF type identifier and registered with the groupId, and transmits the list of registered NF profiles including the groupId and a NRF mapping indication to the AMF entity.

Abstract: A battery module includes a plurality of battery units arranged in a first direction and each including a plurality of battery cells arranged in a second direction perpendicular to the first direction, and two holders respectively located at two ends of the plurality of battery units in a third direction perpendicular to the second direction and the first direction. Each of the holders includes a main body portion. A plurality of guide portions are provided on a side of the main body portion close to the plurality of battery units, and are arranged corresponding to the plurality of battery units. The guide portions extend toward the plurality of battery units in the third direction, and are configured to provide guidance for movement of the corresponding battery cells. Extension lengths of the plurality of guide portions gradually decrease in the first direction.

Abstract: A fuel injector includes an injector body with a fuel chamber configured to receive fuel from a fuel line, an injector tip provided at an end of the injector body, and one or more nozzle assemblies provided in the injector tip. The one or more nozzle assemblies have a fuel channel in fluid communication with the fuel chamber, a premixing tube fluidly connected to the fuel channel, and a port fluidly connected to the premixing tube. The premixing tube has an orifice providing an outlet for the injector tip.

Abstract: A bearing seal includes a seal case, a sleeve, and a thrust bumper that is disposed between the seal case and the sleeve and that is composed of a material that is at least 90% polytetrafluoroethylene by weight. The thrust bumper has an initial axial thickness that defines a spacing between the seal case and the sleeve when the seal case and the sleeve are compressed together during assembly of the bearing seal. The thrust bumper has a modified axial thickness less than the initial axial thickness after a break-in phase of the bearing seal.

Abstract: In one aspect, a wheel hub oil seal including an annular seal having a central opening to receive a vehicle spindle. The annular seal has an oil side for being contacted by oil in the wheel hub and an air side of the annular seal opposite the oil side. The annular seal has a radially outer mounting portion configured to sealingly engage an interior surface of the wheel hub. The annular seal includes a sealing member having a contact portion configured to form a dynamic seal with a running surface. The contact portion of the sealing member has an underlip pressure profile configured to pump oil toward the oil side of the annular seal upon rotation of the radially outer mounting portion of the annular seal with the wheel hub around the vehicle spindle.

Abstract: Provided are a lens adjusting device and a projection apparatus. The device includes a first adjusting support including a lens support, a first guide post and a second guide post; and a second adjusting support including a moving support, a first limit slot, and a first boss. The first guide post is fixedly clamped in the first limit slot, the second guide post being connected to the first boss, and the lens support being supported by and slidably connected to the first guide post and second guide post, such that the lens support is slidable relative to the second adjusting support along the first direction. The lens support is configured to adjust a position of the second guide post relative to the first boss prior to the second guide post and the first boss being fastened to each other to parallel the second guide post and the first guide post.

Abstract: A bearing seal includes a seal case, a sleeve, and a thrust bumper disposed between the seal case and the sleeve to define spacing between the seal case and the sleeve during assembly of a wheel end implementing the bearing seal. The thrust bumper includes polytetrafluoroethylene.