Abstract: A duck call device includes a tone board having a tone surface and a tone board port defined, relative to airflow, behind the tone surface. The tone board port is divided into multiple channels to form a multi-channel port. A reed is located on the tone surface and is configured to vibrate there against. The multi-channel port may be created by a longitudinal central rib dividing a portion of the tone board port, wherein the longitudinal central rib contacts the reed while air is passing through the duck call device. The tone surface may surround a portion of the tone board port with recessed edges, and the central rib may have recessed edges.

Abstract: Provided herein are cast polyurethane compositions and applications thereof in sporting goods equipment, including, for example, alpine skis, touring skis, cross country skis, approach skis, split boards, snowboards, surfboards, paddleboards, and water skis. Further provided herein are methods of preparing said cast polyurethane compositions.

Abstract: An external tire reader can be configured to read a tire tread. The external tire reader can include an offset structure, a camera system, and a controller. The offset structure can be configured to be applied to the tire tread. The camera system can be configured to generate an image of the tire tread while the offset structure is applied to the tire tread. The offset structure can be configured to provide a fixed distance between the camera system and the tire tread while the offset structure is applied to the tire tread. The controller can be coupled with the camera system. The controller can be configured to process the image of the tire received from the camera system.

Abstract: A method is for forming a radiation shield around an object. The method includes providing an inorganic paint pigment comprising a fluid matrix, and paint flakes carried within the fluid matrix. Each paint flake includes a common aluminum mirror layer having a first major surface and a second major surface opposing the first major surface, a first plasmonic aluminum reflector layer carried by the first major surface, and a second plasmonic aluminum reflector layer carried by the second major surface. The method also includes coating an outer surface of the object with the inorganic paint pigment.

Abstract: An inorganic paint pigment may include a fluid matrix, and paint flakes carried within the fluid matrix. Each paint flake may include a common aluminum layer having a first major surface and a second major surface opposing the first major surface, a first plasmonic aluminum reflector layer carried by the first major surface, and a second plasmonic aluminum reflector layer carried by the second major surface.

Abstract: A system for measuring a tread of a tire can include a nonmagnetic layer, a frame, and a housing. The nonmagnetic layer can provide a drive-over surface adapted to receive the tire thereon including the tread to be measured. The frame can have a magnet and a magnetic sensor coupled thereto. The housing can include a cavity therein. The frame with the magnet and the magnetic sensor can be mounted in the cavity. The nonmagnetic layer can be provided on the housing and on the frame.

Abstract: Methods of measuring a thickness of a material are disclosed. An oscillating signal at a measurement frequency is applied to a circuit including an inductive component and a capacitive component provided using a pair of capacitive sensor electrodes adjacent the material. The measurement frequency is less than a resonant frequency of the circuit, and the resonant frequency is based on the inductive component and the capacitive component. Information regarding a value of a measured parameter is generated based on applying the oscillating signal at the measurement frequency to the circuit. A value of the measured parameter is related to the thickness of the material.

Abstract: According to some embodiments disclosed herein, a system is provided to measure a tread of a tire. The system includes a nonmagnetic layer providing a drive over surface, a magnet, and a magnetic sensor associated with the magnet. The drive over surface is adapted to receive the tire thereon including the tread to be measured. The magnet has opposing first and second magnetic poles, the nonmagnetic layer is between the drive over surface and the magnet, and the magnet is arranged so that the first magnetic pole is between the second magnetic pole and the nonmagnetic layer. The nonmagnetic layer is between the drive over surface and the magnetic sensor, and the magnetic sensor is configured to detect a magnetic field resulting from the magnet and the tire on the drive over surface.

Abstract: A duck call device includes a tone board having a tone surface and a tone board port defined, relative to airflow, behind the tone surface. The tone board port is divided into multiple channels to form a multi-channel port. A reed is located on the tone surface and is configured to vibrate there against. The multi-channel port may be created by a longitudinal central rib dividing a portion of the tone board port, wherein the longitudinal central rib contacts the reed while air is passing through the duck call device. The tone surface may surround a portion of the tone board port with recessed edges, and the central rib may have recessed edges.

Abstract: Color derived from metallic nanostructures are often more efficient, more robust to environmental changes, and near impossible to damage or bleach due to overexposure. The embodiments combine these advantages with the millisecond re-configurability of liquid crystals to actively control a reflective color of a metallic nanostructure. Of the current technologies that boast active color tunability, many are pigmentation based (e-ink in e-readers) and/or need seconds to change color (photonic ink, electrochromic materials). Speed is an advantage of the embodiments and is comparable to current liquid crystal displays (˜120 Hz). Traditional LC displays use static polymer films (color filters) and white back light to generate color. Being able to actively tune the color from a single metallic nanostructure allows for smaller pixel size, increased resolution, and decreased fabrication cost compared to a conventional RGB color pixel without needing external white light source for extremely low power operations.

Abstract: A display device may include a substrate, a plasmonic aluminum reflector layer over the substrate, and a conducting oxide layer over the plasmonic aluminum reflector layer. The display device may have a circular polarizer over the conducting oxide layer and configured to receive incident visible radiation. The incident visible radiation may cause plasmon resonance within the plasmonic aluminum reflector layer. The display device may include a circuit configured to apply a voltage between the conducting oxide layer and the plasmonic aluminum reflector layer to cause the plasmonic aluminum reflector layer to selectively reflect the incident visible radiation based on the voltage.

Abstract: Methods of measuring a thickness of a material are disclosed. An oscillating signal at a measurement frequency is applied to a circuit including an inductive component and a capacitive component provided using a pair of capacitive sensor electrodes adjacent the material. The measurement frequency is less than a resonant frequency of the circuit, and the resonant frequency is based on the inductive component and the capacitive component. Information regarding a value of a measured parameter is generated based on applying the oscillating signal at the measurement frequency to the circuit. A value of the measured parameter is related to the thickness of the material.

Abstract: An inorganic paint pigment may include a fluid matrix, and paint flakes carried within the fluid matrix. Each paint flake may include a common aluminum layer having a first major surface and a second major surface opposing the first major surface, a first plasmonic aluminum reflector layer carried by the first major surface, and a second plasmonic aluminum reflector layer carried by the second major surface.

Abstract: A display device may include a substrate, a plasmonic aluminum reflector layer over the substrate, and a conducting oxide layer over the plasmonic aluminum reflector layer. The display device may have a circular polarizer over the conducting oxide layer and configured to receive incident visible radiation. The incident visible radiation may cause plasmon resonance within the plasmonic aluminum reflector layer. The display device may include a circuit configured to apply a voltage between the conducting oxide layer and the plasmonic aluminum reflector layer to cause the plasmonic aluminum reflector layer to selectively reflect the incident visible radiation based on the voltage.

Abstract: A system for monitoring wireless communications in a client device includes a wireless communications interface, including: an analyzer; a monitoring controller coupled to the analyzer; an operational controller of the client device coupled to the wireless communications interface, the operational controller configured to: control the wireless communications interface to establish a wireless connection with an access point according to a set of connection parameters including a channel identifier; and transmit the set of connection parameters to the monitoring controller; the monitoring controller configured, responsive to receiving the connection parameters from the operational controller, to: monitor a channel corresponding to the channel identifier to obtain a plurality of frames transmitted over the channel; and provide the plurality of frames to the analyzer.

Abstract: An electrical assembly includes a housing extending between front and rear ends. The housing includes a post extending between a base end and a free that is loaded into a passage of the circuit board and engages the circuit board in a primary locking operation such that the post secures the housing to the board by a primary holding force. A contact is received in the housing and has a mating end at the front end of the housing for mating with a mating electrical assembly and a terminating end at the rear end of the housing for electrical connection with the board. The free end of the post is locked to the rear side of the board by a secondary locking operation that secures the housing to the board by a secondary holding force that is greater than the primary holding force.

Abstract: An electrical assembly includes a housing at a front side of a panel that extends between mating and receiving ends. The mating end extends through an opening of the panel from the front side to a rear side of the panel. A mounting clip extends between a front end and a rear end and includes a passage therethrough that receives the mating end of the housing. First and second sides of the body define the passage and includes a locking feature extending therefrom the first side into the passage. The clip moves between unlocked and locked positions by sliding the rear end of the clip along the rear side of the panel and the body is flexed outward to allow the locking feature to bypass the housing. The mating end of the housing is coupled with an electrical connector in a locking operation to secure the housing to the panel.

Abstract: A system for monitoring wireless communications in a client device includes a wireless communications interface, including: an analyzer; a monitoring controller coupled to the analyzer; an operational controller of the client device coupled to the wireless communications interface, the operational controller configured to: control the wireless communications interface to establish a wireless connection with an access point according to a set of connection parameters including a channel identifier; and transmit the set of connection parameters to the monitoring controller; the monitoring controller configured, responsive to receiving the connection parameters from the operational controller, to: monitor a channel corresponding to the channel identifier to obtain a plurality of frames transmitted over the channel; and provide the plurality of frames to the analyzer.

Abstract: An electrical assembly includes a housing extending between front and rear ends. The housing includes a post extending between a base end and a free that is loaded into a passage of the circuit board and engages the circuit board in a primary locking operation such that the post secures the housing to the board by a primary holding force. A contact is received in the housing and has a mating end at the front end of the housing for mating with a mating electrical assembly and a terminating end at the rear end of the housing for electrical connection with the board. The free end of the post is locked to the rear side of the board by a secondary locking operation that secures the housing to the board by a secondary holding force that is greater than the primary holding force.

Abstract: An electrical assembly includes a housing at a front side of a panel that extends between mating and receiving ends. The mating end extends through an opening of the panel from the front side to a rear side of the panel. A mounting clip extends between a front end and a rear end and includes a passage therethrough that receives the mating end of the housing. First and second sides of the body define the passage and includes a locking feature extending therefrom the first side into the passage. The clip moves between unlocked and locked positions by sliding the rear end of the clip along the rear side of the panel and the body is flexed outward to allow the locking feature to bypass the housing. The mating end of the housing is coupled with an electrical connector in a locking operation to secure the housing to the panel.