Abstract: The present disclosure provides a camera calibration method based on vehicle localization, mainly considering that a vehicle is not of an ideal rigid structure, and shaking of a vehicle body during operation, uneven road surfaces, or different loads will cause variations in extrinsic parameters of a camera system, resulting in perceptual information errors. Therefore, through perceptual information from a fused image, an inertial measurement unit, a speedometer, and the like, combined with the road and marking information provided by a high-definition map, the relative motion between the vehicle body and a vehicle chassis is simultaneously described with a mass-spring-damper model, so as to complete the determination of six-degree-of-freedom positions of the vehicle body and the vehicle chassis, and finally the extrinsic parameters of cameras are immediately calibrated with the vehicle chassis as reference coordinates.

Abstract: Methods and apparatus for forming a barrier layer are provided herein. In some embodiments, a method of forming a barrier layer on a substrate includes treating an exposed layer deposited on a substrate and within a feature of the substrate by pulsing a bias power applied to a substrate support supporting the substrate while exposing the layer to a plasma. The exposed layer can be deposited by an atomic layer deposition process, and can be, for example, a tantalum nitride layer. The bias power can be up to 500 watts of RF power at a pulse frequency of about 1 Hz to about 10 kHz. The bias power can be pulsed uniformly or at multiple different levels.

Abstract: A jig for use in performing an operation on a component includes a body including a back surface and a front surface opposite the back surface. The front surface defining a nominal shape of the component. The jig also includes a track extending at least partially along a length of the body. The jig further includes a carriage mounted to the track and adjacent the back surface. The carriage configured for movement in an X direction along the track and in a Y direction perpendicular to the X direction. The jig also includes a drill mounted to the carriage.

Abstract: A system includes a control unit configured to receive one or more force signals from one or more force sensors coupled to one or both of a tool or an end effector. The one or more force signals are indicative of one or more forces exerted in relation to the tool or the end effector as the tool operates on one or more components to form an expanded hole. The control unit is further configured to compare the one or more forces in relation to force data associated with a reference expanded hole that is aligned with an alignment hole of the one or more components. The control unit is further configured to determine that the expanded hole caused a deformation when the one or more forces differ from the force data.

Abstract: A frequency locked loop circuit, comprising an operational circuit, a first impedance circuit, a second impedance circuit, a switching circuit and a frequency generation circuit. The operational circuit is configured to output an operational signal according to a voltage difference between a positive terminal and a negative terminal. The switching circuit is configured to periodically conduct the negative terminal to one of the first impedance node and the second impedance node, and periodically conduct the positive terminal to the other one of the first impedance node and the second impedance node. The frequency generation circuit is configured to periodically sample the operational signal to generate a sample signal to generate a clock signal. An operational frequency of the operational signal is an integer multiple of a sampling frequency of the frequency generation circuit.

Abstract: Systems and methods are provided for assembling aircraft fuselages. One embodiment is a method for assembling a fuselage of an aircraft. The method includes indexing an arcuate section of a fuselage to a frame installation station, feeding a frame at the frame installation station into a concavity defined by the arcuate section, placing the frame against an Inner Mold Line (IML) of the arcuate section while the frame is within the concavity, and affixing the frame to the arcuate section.

Abstract: Aspects of the present disclosure relate generally to the manufacture of assemblies of components, and in particular to methods, apparatus, and systems for performing manufacturing operations. In one aspect, a method of manufacturing an assembly of components includes positioning first and second components into a nominal configuration with respect to each other at a first factory location. The method further includes drilling a fastener joining hole through an interface of the first and second components at the first factory location. The method further includes positioning the first and second components for fastener joining at a second factory location. The method further includes inserting a fastener into the fastener joining hole to couple the first and second components together.

Abstract: A switching method, including: electrically coupling a switching circuit to a first impedance circuit, a second impedance circuit, a positive terminal of a frequency generation circuit and a negative terminal of the frequency generation circuit; adjusting an impedance value of the second impedance circuit according to a first clock signal and a second clock signal outputted by the frequency generation circuit; periodically conducting the negative terminal to one of the first impedance circuit and the second impedance circuit by a first switching unit of the switching circuit; and periodically conducting the positive terminal to the other one of the first impedance circuit and the second impedance circuit by a second switching unit of the switching circuit.

Abstract: An inspection system includes a scanner and a computing device. The scanner is configured to scan an inner surface of a hole in an object. The scanner is configured to generate a plurality of images. Each one of the images represents one of a plurality of sections of the inner surface of the hole. The computing device is coupled to the scanner to receive the plurality of images. The computing device is programmed to combine the plurality of images to form an image. The image represents the inner surface of the hole. The computing device is programmed to evaluate a surface characteristic of the inner surface based on pixel-intensity values of the image.

Abstract: A coated fastener includes a core body comprising conductive material and including a first portion and a second portion. The coated fastener also includes a first coating comprising dielectric material and disposed on the first portion of the core body. The coated fastener further includes a second coating comprising a conductive friction modifier material and disposed on the second portion of the core body to provide the fastener with a desired transition hold fit, improved lubricity, and improved electromagnetic effects protection.

Abstract: A system and a method for presenting three-dimensional content and a three-dimensional content calculation apparatus are provided. In the method, the calculation apparatus receives a request for presentation content including one or more images from a client device, receives the presentation content from a content delivery network according to the request, processes the images using a first machine-learning model to generate a first predicted result, processes the images using multiple machine-learning models to generate at least a second predicted result and a third predicted result, selects a second machine-learning model from the machine-learning models based on a comparison of the first predicted result with the at least the second predicted result and the third predicted result, processes the images using the second machine-learning model and sends a processing result to the client device. Accordingly, the client device generates a three-dimensional presentation of the presentation content.

Abstract: A distributed data processing system and a distributed data processing method are provided. The distributed data processing system includes a computing device and at least one additional computing device.

Abstract: Systems and methods are described for selecting models to perform monocular depth estimation. A computing device may receive a plurality of image and select an image from the plurality of images to evaluate a first machine-learning model and a plurality of machine-learning models are smaller than the first machine-learning model. The computing device may process the image using a first machine-learning model to generate a first predicted result. The computing device may also process the image using the plurality of machine-learning models to generate at least a second predicted result and a third test data set. The computing device may select a second machine-learning model from the plurality of machine-learning models based on a comparison of the first predicted result with the at least the second predicted result and the third test data set. The computing device may then process the plurality of images using the second machine-learning model.

Abstract: A system and a method include a control unit configured to receive one or more force signals from one or more force sensors coupled to one or both of a tool or an end effector. The one or more force signals are indicative of one or more forces exerted in relation to the tool or the end effector as the tool operates on a first component and a second component. The control unit is further configured to detect a difference in the one or more forces as an operative portion of the tool passes through a gap between the first component and the second component. The control unit is further configured to determine a distance of the gap based on the difference in the one or more forces.

Abstract: Methods and apparatus for generating a magnetic field external to a physical vapor deposition (PVD) chamber to improve etch or deposition uniformity on a substrate disposed inside of the PVD chamber are provided herein. In some embodiments, a process chamber, includes a chamber body defining an interior volume therein; a pedestal disposed in the interior volume for supporting a substrate; a coil disposed in the interior volume above the pedestal; and an external magnet assembly, comprising: a housing coupled to the chamber body; and a plurality of magnets disposed external to the chamber body coupled to the housing and arranged asymmetrically about the chamber body.

Abstract: Aspects of the present disclosure relate generally to the manufacture of assemblies of components, and in particular to methods, apparatus, and systems for performing manufacturing operations. In one aspect, a method of manufacturing an assembly of components includes positioning first and second components into a nominal configuration with respect to each other at a first factory location. The method further includes drilling a fastener joining hole through an interface of the first and second components at the first factory location. The method further includes positioning the first and second components for fastener joining at a second factory location. The method further includes inserting a fastener into the fastener joining hole to couple the first and second components together.

Abstract: Magnet assemblies comprising a housing with a top plate each comprising aligned openings are described. The housing has a bottom ring and an annular wall with a plurality of openings formed in the bottom ring. The top plate is on the housing and has a plurality of openings aligned with the plurality of openings in the bottom ring of the housing. The magnet assembly may also include a non-conducting base plate and/or a conductive cover plate. Methods for using the magnet assembly and magnetic field tuning are also described.

Abstract: The invention relates in one aspect to compounds, pharmaceutical compositions thereof, and methods using the same for selectively activating either all or a single isoform of Akt. Isoform selective-targeting is necessary for avoiding pathologies driven by concomitantly activated Akt1, Akt2 and/or Akt3.

Abstract: The present invention discloses a limit switch assembly for use with a digital torque wrench. The limit switch assembly is configured to prevents the micro-controller from displaying undesired jumps in real-time torque measurements. The limit switch assembly includes a housing, actuator that is movable between a first and second position and a biasing element that biases the actuator toward its first position.