Abstract: Multilayer optical film comprising at least a plurality of alternating first and second optical layers. Embodiments of the multilayer optical film are useful, for example, in UV-C shield, UV-C light collimator, and UV-C light concentrator applications.

Abstract: Compositions are provided including a free-radically reactive component, a photoradical generator, and either a crosslinker having a photodegradable linkage or a chemical blowing agent, an epoxy component, and a photoacid generator. Polymeric films including reaction products of the compositions are also provided. A debondable article including a polymeric film containing a crosslinker having a photodegradable linkage is further provided, as well as a method of debonding the article. Foam compositions are also provided, including foamed matrices including the reaction products of the compositions. Further, articles and foam adhesives are provided including a substrate and a composition or foam composition disposed on the substrate.

Abstract: A ball bat may include a handle portion and a barrel portion extending away from the handle portion to an end cap. The barrel portion has an outer wall formed from aluminum and includes at least two and no greater than four inwardly projecting circumferential humps spaced by intervening circumferential valleys.

Abstract: A data processing system comprising a processor having a working memory and processing logic, a boot system configured to load one or more algorithms for initializing a basic input output system (BIOS) of the processor into the working memory and an error correction system configured to start a watchdog timer and to monitor initialization of the processor, the error correction system further configured to implement a corrective process if the watchdog timer times out prior to initialization of the BIOS of the processor.

Abstract: A skin patch for the UV protection is contemplated as being formed from a vulcanized silicone substrate, an adhesive gel coating adhered to the internal surface of the silicone substrate, and a release liner removably attached to the adhesive gel coating, wherein following removal of the release liner from the adhesive gel coating, the coating is operative to enable adherence of the skin patch to skin. The skin patch is further contemplated as being operative to at least partially absorb solar ultraviolet radiation via the vulcanized silicone substate or the adhesive coating additionally comprising at least one UV-blocking compound having an absorption peak in the ultraviolet spectrum.

Abstract: Aspects of the subject technology relate to providing gesture-based control of electronic devices. Providing gesture-based control may include determining, with a machine learning system that includes multiple machine learning models, a prediction of one or more gestures and their corresponding probabilities of being performed. A likelihood of the user's intent to actually perform that gesture may then be generated, based on the prediction and a gesture detection factor. The likelihood may be dynamically updated over time, and a visual, auditory, and/or haptic indicator of the likelihood may be provided as user feedback. The visual, auditory, and/or haptic indicator may be helpful to guide the user to the correct gesture if the gesture is intended, or to stop performing an action similar to the gesture if the gesture is not intended.

Abstract: A light guide comprising a polymeric layer at least 25 percent transmissive over at least a 30 nm bandwidth in a wavelength range from 180 to 280 nm over a distance of at least 100 micrometers and visible light transparent reflecting layers (UV-C mirror) that are at least 50 percent reflective over at least 30 nm bandwidth in a wavelength range from 180 to 280 nm over an incident light angle of 0 to 90 degrees and that are at least 25 percent transmissive of visible light over at least 30 nm bandwidth in a wavelength range of 400 to 800 nm over an incident light angle of 0 to 90 degrees. The light guide is useful, for example, for antimicrobial surfaces.

Abstract: A system and method for cleaning of heat exchanger tubes including an assembly, an indexer, and a communication device provided with specialized software and programming. The indexer includes orthogonally arranged first and second arms. A trolley and sensors are provided on the indexer arms. One or more lances are provided on the trolley to deliver water jets into the openings. Sensors measure displacement as the trolley is moved relative to the heat exchanger's face plate. An operator controls the system from a distance away using the communication device. During setup, the pattern of the face plate is learned and mapped utilizing information from the sensors as one of the inputs. This information is utilized to help navigate the face plate during a subsequent cleaning operation. A kit for retrofitting existing X-Y indexers is also disclosed.

Abstract: The present disclosure generally relates to displaying information related to a physical activity. In some embodiments, methods and user interfaces for managing the display of information related to a physical activity are described.

Abstract: A computer-implemented method for modifying audio-based communications produced during a conference call is disclosed. The computer-implemented method can include monitoring a plurality of utterances transmitted via an audio feed of a device connected to the conference call. The computer-implemented method can identify a first unwanted audio component transmitted via the audio feed. The computer-implemented method can actively modify the audio feed by removing the first unwanted audio component from the audio feed.

Abstract: One embodiment is a navigation system for an aircraft including a positioning system to generate information related to a position of the aircraft, a group of cameras mounted to a body of the aircraft, each camera of the group of cameras to simultaneously capture images of a portion of an environment that surrounds the aircraft, and a processing component coupled to the positioning system and the group of cameras, the processing component to determine a current position of the aircraft based on the information related to the position of the aircraft and the images.

Abstract: An automated electric portable friction welding system is disclosed for friction welding a fixture onto a substrate, the welding system having a linear actuator received to produce a defined stroke within a tool housing and a rotary motor engaged to said linear actuator to slide therewith. A control module controls welding operations as a function of encoded instructions and the sensor data from the linear actuator and the rotary motor, whereby the control module affords both active control of the linear actuator and rotary motor, individually to performance parameter instructions, and in coordination through phases of the weld process in response to linear actuator operation sensors and motor operation sensors. Another feature of some embodiments of the present invention is a portable friction welding network and a method for supporting portable friction welding on the cloud.

Abstract: A multi-position clamp is disclosed for positioning and holding a portable friction welding tool adjacent a substrate for friction welding a plurality of fixtures in a precise pattern referenced from a fixed position on a substrate. The clamp has a clamp base temporarily securable at the fixed position on the substrate, a traveling mount comprising a tool mount for receiving said portable friction welding tool, and a connection to the clamp base allowing relative movement of the tool mount over the substrate. Index stops help install the plurality of fixtures in the pattern and an articulated fixture loading system allow positioning and loading successive fixtures without disengaging and removing said portable friction welding tool from connection with the clamp base.

Abstract: In some implementations, an apparatus comprises a pipe, a stud that is forge-welded to the pipe, creating a forge-welded stud, a bracket that is operably coupled to the forge-welded stud, and a ladder support operably coupled to the bracket.

Abstract: A method of inhibiting tarnish formation of silver or silver alloy and corrosion of gold or gold alloy by applying a thin coating of bismuth on the silver, silver alloy, gold or gold alloy. The thin bismuth coating does not compromise the electrical performance of the silver, silver alloy, gold or gold alloy even after thermal aging.

Abstract: A method of inhibiting tarnish formation of silver or silver alloy and corrosion of gold or gold alloy by applying a thin coating of bismuth on the silver, silver alloy, gold or gold alloy. The thin bismuth coating does not compromise the electrical performance of the silver, silver alloy, gold or gold alloy even after thermal aging.

Abstract: A system allows for a user to notify an insurance provider or other third-party with a button press. The button can notify of an emergency situation. An event determiner may analyze information of events surrounding the button click. This information may include the time of day, location, identifying information for the insured, recent locations of the button, information from similar button presses and information from previous insurance claims. Based on this information, the event determiner may provide a high percentage estimate of an abnormal condition: home break-in, car accident, flat tire, etc. The system may automatically take action, depending on the event, such as contacting the police, sending a tow truck, or starting an insurance claim.

Abstract: A workpiece and associated method includes fabricating, employing an additive manufacturing process, a raw workpiece from aluminum alloy that includes silicon; heat-treating the raw workpiece to produce an intermediate workpiece, including subjecting the raw workpiece to a first temperature environment, wherein the first temperature environment agglomerates silicon particles disposed on a surface of the raw workpiece; cleaning the intermediate workpiece without removing the silicon particles agglomerated on the surface thereof; and applying a conversion coating onto the surface of the intermediate workpiece.

Abstract: A pneumatic motor propulsion source including a friction welding apparatus, a gas accumulator tank operably coupled to the friction welding apparatus, and an air compressor operably coupled to the gas accumulator tank.

Abstract: In some implementations, an apparatus comprises a pipe, a stud that is forge-welded to the pipe, creating a forge-welded stud, a bracket that is operably coupled to the forge-welded stud, and a ladder support operably coupled to the bracket.