Abstract: A scanning device for an air filter being arranged to be mounted in a circular duct, comprising: a driving unit and a sampling unit, wherein the driving unit comprises an inner magnetic member and an inner magnetic member support element and an outer magnetic member and a circular guiding rail wherein the sampling unit comprises a central rotation axis and a probe nozzle, the probe nozzle is driven to rotate around the central rotation axis by a force of attraction between the inner magnetic member and the outer magnetic member.

Abstract: Provided herein are compounds according to Formula (I) or a pharmaceutically acceptable salt thereof, wherein R1, R2, R3, R5, and R7 are defined herein. Also provided herein are pharmaceutical compositions comprising a compound of Formula (I) as well as the use of such compounds as M4 receptor agonists.

Abstract: A variable current trans-impedance amplifier (TIA) for an ultrasound device is described. The TIA may be coupled to an ultrasonic transducer to amplify an output signal of the ultrasonic transducer representing an ultrasound signal received by the ultrasonic transducer. During acquisition of the ultrasound signal by the ultrasonic transducer, one or more current sources in the TIA may be varied.

Abstract: A head-mounted display (HMD) determines whether a set of criteria is satisfied based on eye-related readings collected by a camera of the HMD and wirelessly transmits a set of messages in response to a determination that the set of criteria is satisfied. An attachment includes a set of light-emitting diodes (LEDs) and activates the set of LEDs to emit the light at the bleaching intensity in response to receiving the set of messages.

Abstract: Disclosed herein are electronic devices that include arrays of dual function light transmit and receive pixels. The pixels of such arrays include a photodetector (PD) structure and a vertical-cavity, surface-emitting laser (VCSEL) diode, both formed in a common stack of epitaxial semiconductor layers. The pixels of the array may be configured by a controller or processor to function either as a light emitter by biasing the VCSEL diode, or as a light detector or receiver by a different bias applied to the PD structure, and this functionality may be altered in time. The array of dual function pixels may be positioned interior to an optical display of an electronic device, in some cases to provide depth sensing or autofocus. The array of pixels may be registered with a camera of an electronic device, such as to provide depth sensing or autofocus.

Abstract: Apparatus and techniques for electrokinetic loading of samples of interest into sub-micron-scale reaction chambers are described. Embodiments include an integrated device and related apparatus for analyzing samples in parallel. The integrated device may include at least one reaction chamber formed through a surface of the integrated device and configured to receive a sample of interest, such as a molecule of nucleic acid. The integrated device may further include electrodes patterned adjacent to the reaction chamber that produce one or more electric fields that assist loading the sample into the reaction chamber. The apparatus may further include a sample reservoir having a fluid seal with the surface of the integrated device and configured to hold a suspension containing the samples.

Abstract: Circuitry for an ultrasound device is described. The ultrasound device may include a symmetric switch positioned between a pulser and an ultrasound transducer. The pulser may produce bipolar pulses. The symmetric switch may selectively isolate a receiver from the pulser and the ultrasound transducer during a transmit mode of the device, when the bipolar pulses are provided by the pulser to the ultrasound transducer for transmission, and may selectively permit the receiver to receive signals from the ultrasound transducer during a receive mode. The symmetric switch may be provided with a well switch to remove well capacitances in a signal path of the device.

Abstract: The present invention provides an apparatus for securing garments in position on a wearer. The apparatus comprises a flexible material secured to the garment so as to provide forces of tension in opposition to the garment. Thus, the garment is secured in position on the wearer. The garment spreader may be of any semi-rigid material such as plastic, cardboard and felt. The garment spreader may be removably or integrally secured to the garment. Methods of use are also provided.

Abstract: A shutoff valve for installation in a gas distribution line to interrupt the flow of gas automatically upon a drop in pressure in the line due to a break or the like. The valve includes a movable valve member actuated by a piston which is disposed in a cylinder in communication with the distribution line. The top of the piston includes a calibrated aperture which admits gas into the cylinder beneath the piston so that the pressure beneath the piston in the cylinder is substantially equal to the pressure in the line. However, upon a sudden drop in pressure in the line due to a break or the like, the flow of gas through the aperture is metered so that the pressure in the cylinder beneath the piston becomes greater than the pressure in the distribution line, causing the piston to shift upwardly and move the valve member into a position where it interrupts the flow of gas. The pressure differential on the valve member retains it in the closing position.

Abstract: A laminated current surge protector comprising a flexible, conformable arrestor having a metal conductor encapsulated between a wear resistant tape adhered to the outer surface of the conductor and a dielectric tape adhered to the inner surface of the conductor. The arrestor is adhered to metal members by a bonding agent and extends across the joint between the members which includes an electrical insulating medium separating the members. The dielectric tape has a plurality of apertures therein exposing the encapsulated conductor to the metal members to provide a gap through which excessive surges of current in the metal members can pass through the conductor from one metal member to the other and thereby by-pass the joint and prevent injury thereto.