Abstract: Friction material that is substantially free of elemental metals, metal alloys, and antimony trisulfide, wherein the solid lubricant includes a metal sulfide. The disclosed compositions of the friction material are believed to be more environment-friendly than conventional compositions. However, the substantial elimination of elemental metals, metal alloys, and antimony trisulfide from the disclosed compositions is performed in a manner that does not appear to substantially impact the friction performance and noise behavior of the corresponding brake components. Moreover, it is believed that at least some of the disclosed compositions increase the useful lifespan of the brake components and reduce wear of the rotors. The longer brake-components lifespan and lower rotor wear provide additional benefits in terms of reducing non-exhaust-related vehicle emissions, which further alleviates the environmental impact of traffic emissions.

Abstract: An aluminum borate whisker reinforced and toughened non-metallic matrix composite is provided, which specifically includes a non-metallic material reinforced and toughened with aluminum borate whiskers. The composite exhibits a higher bending strength and fracture toughness and a higher wear resistance. A method for preparing the composite is also provided. The method includes mixing the aluminum borate whiskers and the non-metallic material to form a mixture; and sintering the mixture by a vacuum hot press method, or molding the mixture.

Abstract: A method, an apparatus, device and a storage medium for generating a target re-recognition model are provided. The method may include: acquiring a set of labeled samples, a set of unlabeled samples and an initialization model obtained through supervised training; performing feature extraction on each sample in the set of the unlabeled samples by using the initialization model; clustering features extracted from the set of the unlabeled samples by using a clustering algorithm; assigning, for each sample in the set of the unlabeled samples, a pseudo label to the sample according to a cluster corresponding to the sample in a feature space; and mixing a set of samples with a pseudo label and the set of the labeled samples as a set of training samples, and performing supervised training on the initialization model to obtain a target re-recognition model.

Abstract: A patch antenna comprises a multilayer printed circuit board that includes a calibration network, an array of patch radiators and a feed network. In some embodiments, the multilayer printed circuit board includes a plurality of dielectric substrates, wherein the array of patch radiators is provided on a dielectric substrate different from the dielectric substrate on which the calibration network is provided, and the dielectric substrate provided with the array of patch radiators is provided above the dielectric substrate provided with the calibration network.

Abstract: A multi-layer circuit board, successively constituted by surface sticking layer, single-layer circuit board, middle sticking layer, single-layer circuit board, surface sticking layer, said multi-layer circuit board is provided with a hole, a hole wall of said hole is formed with conductive seed layer, and partial outer surface of said surface sticking layer is formed with a circuit pattern layer of conductive seed layer, wherein said conductive seed layer comprises a ion implantation layer implanting below the hole wall of said hole and below partial outer surface of said surface sticking layer.

Abstract: The present invention discloses a method for breeding a new variety of high-quality Gossypium hirsutum, including breeding a parent Xiang 176 line, breeding parent Xiang 267, crossing and composite-crossing the Xiang 176 line and the Xiang 267 as parents, and obtaining the new variety of high-quality conventional Gossypium hirsutum in their offspring. The plant type of this variety was tower type, with good growth vigor in the seedling stage and the boll opening stage, good uniformity, dense stalk cilia, white anthers, smooth boll opening, stable agronomic traits, high yield, and excellent fiber quality.

Abstract: The present disclosure relates to a transmission mechanism for a base station antenna, and a base station antenna including the transmission mechanism. The transmission mechanism includes a motor and at least one connecting rod, wherein a gear mechanism is provided on a first end of the connecting rod, and the motor drives the connecting rod to rotate via the gear mechanism; and wherein a worm gear unit is provided on a second end of the connecting rod opposite to the first end, and the worm gear unit is configured to drive a movable element of a phase shifter when the connecting rod rotates. The transmission mechanism according to the present disclosure can generate greater driving force through the worm gear unit, and has a shorter axial length and a smaller height, and thus is particularly suitable for a more compact and thinner 5G base station antenna.

Abstract: Training data generators and methods for machine learning are disclosed. An example method to generate training data for machine learning by generating simulated training data for a target neural network, transforming, with a training data transformer, the simulated training data form transformed training data, the training data transformer trained to increase a conformance of the transformed training data and the simulated training data, and training the target neural network with the transformed training data.

Abstract: Disclosed are a lens group housing, a corresponding external housing system and a camera mounting module. The lens group housing is configured to receive the lens group, a surface of the lens group housing is provided with a limiting structure configured to limit the position of the lens group housing relative to an external housing system and the surface of the lens group housing includes a thread structure configured to connect the lens group housing to the external housing system. The external housing system comprises: a limiting matching structure corresponding to the limiting structure of the lens group housing and a nut structure configured to match the thread structure of the lens group housing such that the lens group housing is fixedly connected relative to the external housing system. The camera mounting module comprises a camera module.

Abstract: Techniques related to training and implementing convolutional neural networks for object recognition are discussed. Such techniques may include applying, at a first convolutional layer of the convolutional neural network, 3D filters of different spatial sizes to an 3D input image segment to generate multi-scale feature maps such that each feature map has a pathway to fully connected layers of the convolutional neural network, which generate object recognition data corresponding to the 3D input image segment.

Abstract: A system that incorporates aspects of the subject disclosure may perform operations including, for example, monitoring performance parameters in a communications network, identifying a degradation in performance of one or more nodes of the communications network according the monitored performance parameters, and initiating corrective action to mitigate the degradation in performance of the one or more nodes of the communications network. Other embodiments are disclosed.

Abstract: A storage device for storing electron charges includes a substrate, a tunnel oxide layer formed on the substrate, a silicon-rich nitride layer comprising silicon nitride on the tunnel oxide layer, and a modulated interface layer on the silicon-rich nitride layer, wherein the modulated interface layer comprises oxynitride silicide. The electron traps in the modulated interface layer have deeper trap depths than in the silicon-rich nitride layer.

Abstract: An antenna mounting kit for an integrated base station antenna includes: an upper mounting assembly configured to removably connect an upper portion of the integrated base station antenna to a mounting pole; a middle mounting assembly configured to removably connect a middle portion of the integrated base station antenna to the mounting pole; and a lower mounting assembly configured to removably connect a lower portion of the integrated base station antenna to the mounting pole. The antenna mounting kit can not only mount the 4G antenna unit to the mounting pole, but also mount the 5G antenna unit to the 4G antenna unit, reducing the number of components required for mounting, simplifying mounting steps, and reducing labor costs.

Abstract: A gas turbine engine article includes a substrate that has a pre-bond surface that includes a serpentine groove. A coating is disposed on the pre-bond surface and mechanically interlocks with the serpentine groove.

Abstract: A technology is described for mapping a physical environment. An example method may include receiving laser point data for laser light reflected from the physical environment and detected by a laser sensor. Points included in the laser point data can be correlated to grid cells in an environment map that represents the physical environment. Error ranges for the points correlated to the grid cells can be determined based in part on an error distribution. Occupation probabilities can then be calculated for the grid cells in the environment map using an interpolation technique and grid cell occupation probabilities for adjacent error grid cells selected based in part on the error ranges of the points, and the grid cells in the environment map can be updated with the occupation probabilities.

Abstract: The present application relates to a mounting device for a base station antenna. The mounting device is configured to mount a base station antenna to a holding pole, the mounting device includes an adjustable movable component, and a status of the movable component is related to a mechanical tilt of the base station antenna. The mounting device further includes a self-locking worm drive and a spiral gear engaged with the self-locking worm, and the spiral gear coupled with the movable component, where, by actuating the self-locking worm, the spiral gear is capable of being rotated, and thus the status of the movable component is capable of being adjusted. The present application also relates to a base station antenna system that includes a base station antenna, a lower mounting device, and an upper mounting device, and the upper mounting device is a mounting device for a base station antenna as described.

Abstract: The disclosure discloses a method and device for thermal control of a battery after charging based on air temperature prediction. In the method or device, a predicted air temperature of a local area is acquired via a network, contrast and comparison are performed according to the predicted air temperature and a current battery temperature, and the battery is periodically controlled to be heated or cooled in combination with the natural heat dissipation of a battery pack.

Abstract: An optical fiber interface is configured to connect to an optical fiber patch cable plug, and includes: a main body, where a plug-in port for insertion is disposed on the main body, and the plug-in port is configured to accommodate an inserted optical fiber patch cable plug; a cover plate, where the cover plate is disposed above the main body and is fixed to the main body; and a clamping unlocking mechanism, where the clamping unlocking mechanism is disposed between the plug-in port and the cover plate and includes a clamping component and an elastic component, the clamping component is disposed in a radial direction of the plug-in port and is configured to clamp the optical fiber patch cable plug when the optical fiber patch cable plug is inserted into the plug-in port. The optical fiber interface provided in embodiments of this application can be used for optical fiber connection.

Abstract: Provided are a joint perception model training method, a joint perception method, a device, and a storage medium. The joint perception model training method includes: acquiring sample images and perception tags of the sample images; acquiring a preset joint perception model, where the joint perception model includes a feature extraction network and a joint perception network; performing feature extraction on the sample images through the feature extraction network to obtain target sample features; performing joint perception through the joint perception network according to the target sample features to obtain perception prediction results; and training the preset joint perception model according to the perception prediction results and the perception tags, where the joint perception includes executing at least two perception tasks.

Abstract: An optical port shielding and fastening apparatus is configured to be installed in the optical module. The optical module includes a housing assembly and an optical component located in the housing assembly. The optical port shielding and fastening apparatus includes a fastener and an electromagnetic wave absorbing piece. The fastener is fastened in the housing assembly. The electromagnetic wave absorbing piece is fastened on a side that is of the fastener and that faces an outside of the housing assembly. A first mounting hole and a second mounting hole are correspondingly provided on the fastener and the electromagnetic wave absorbing piece. The optical component passes through the first mounting hole and the second mounting hole in sequence. This application provides an optical port shielding and fastening apparatus, an optical module, and a communications device, to resolve poor optical port shielding performance of an optical module in the related technology.