Abstract: A photocathode assembly may include: a reflective substrate; an enhancement layer on the reflective substrate; and a photosensitive film on the enhancement layer, wherein the enhancement layer has a thickness of about 10 nm or less.

Abstract: Embodiments are disclosed for responding to an incoming alert using vehicle resources to scan and report on an environment of a vehicle. An example an in-vehicle computing system of a vehicle includes a sensor subsystem in communication with a sensor, a communication interface, a processor, and memory storing instructions executable by the processor to receive, via the communication interface, an alert including one or more alert parameters, instruct the sensor to scan an assigned region around the vehicle, receive, from the sensor, locally scanned data corresponding to the assigned region, determine that the scanned data includes an object having features matching a selected alert parameter of the one or more alert parameters, and transmit, to an alert service, a notification identifying the object and the features matching the selected alert parameter, the notification including a location of the object.

Abstract: A photocathode for use in vacuum electronic devices has a bandgap gradient across the thickness (or depth) of the photocathode between the emitting surface and the opposing surface. This bandgap gradient compensates for depth-dependent variations in transport energetics. When the bandgap energy EBG(z) is increased for electrons with shorter path lengths to the emitting surface and decreased for electrons with longer path lengths to the emitting surface, such that the sum of EBG(z) and the scattering energy is substantially constant or similar for electrons photoexcited at all locations within the photocathode, the energies of the emitted electrons may be more similar (have less variability), and the emittance of the electron beam may be desirably decreased. The photocathode may be formed of a III-V semiconductor such as InGaN or an oxide semiconductor such as GaInO.

Abstract: Embodiments are disclosed for responding to an incoming alert using vehicle resources to scan and report on an environment of a vehicle. An example an in-vehicle computing system of a vehicle includes a sensor subsystem in communication with a sensor, a communication interface, a processor, and memory storing instructions executable by the processor to receive, via the communication interface, an alert including one or more alert parameters, instruct the sensor to scan an assigned region around the vehicle, receive, from the sensor, locally scanned data corresponding to the assigned region, determine that the scanned data includes an object having features matching a selected alert parameter of the one or more alert parameters, and transmit, to an alert service, a notification identifying the object and the features matching the selected alert parameter, the notification including a location of the object.

Abstract: A control system comprising a temperature sensor, an enthalpy sensor and a processor capable of receiving said temperature and enthalpy signals and further capable of controlling the operation of an energy recovery ventilation wheel based at least in part on said temperature and enthalpy signals.

Abstract: A control system comprising a temperature sensor, an enthalpy sensor and a processor capable of receiving said temperature and enthalpy signals and further capable of controlling the operation of an energy recovery ventilation wheel based at least in part on said temperature and enthalpy signals.

Abstract: A control system comprising a temperature sensor, an enthalpy sensor and a processor capable of receiving said temperature and enthalpy signals and further capable of controlling the operation of an energy recovery ventilation wheel based at least in part on said temperature and enthalpy signals.

Abstract: Disclosed are graphene shield enhanced photocathodes, such as high QE photocathodes. In certain embodiments, a monolayer graphene shield membrane ruggedizes a high quantum efficiency photoemission electron source by protecting a photosensitive film of the photocathode, extending operational lifetime and simplifying its integration in practical electron sources. In certain embodiments of the disclosed graphene shield enhanced photocathodes, the graphene serves as a transparent shield that does not inhibit photon or electron transmission but isolates the photosensitive film of the photocathode from reactive gas species, preventing contamination and yielding longer lifetime.

Abstract: A control system comprising a temperature sensor, an enthalpy sensor and a processor capable of receiving said temperature and enthalpy signals and further capable of controlling the operation of an energy recovery ventilation wheel based at least in part on said temperature and enthalpy signals.

Abstract: An electron source includes a back contact surface having a means for attaching a power source to the back contact surface. The electron source also includes a layer comprising platinum in direct contact with the back contact surface, a composite layer of single-walled carbon nanotubes embedded in platinum in direct contact with the layer comprising platinum. The electron source also includes a nanocrystalline diamond layer in direct contact with the composite layer. The nanocrystalline diamond layer is doped with boron. A portion of the back contact surface is removed to reveal the underlying platinum. The electron source is contained in an evacuable container.

Abstract: An electron source includes a back contact surface having a means for attaching a power source to the back contact surface. The electron source also includes a layer comprising platinum in direct contact with the back contact surface, a composite layer of single-walled carbon nanotubes embedded in platinum in direct contact with the layer comprising platinum. The electron source also includes a nanocrystalline diamond layer in direct contact with the composite layer. The nanocrystalline diamond layer is doped with boron. A portion of the back contact surface is removed to reveal the underlying platinum. The electron source is contained in an evacuable container.

Abstract: A chain saw has a spacer plate that provides an initial clearance space between an outer surface of an elongate flat blade that carries the cutting element of the saw and an inner surface of a recessed wall formed in a motor cover that forms a part of the chain saw housing when a pair of locking nuts are loosely seated against an outer surface of the recessed wall. When the locking nuts are firmly seated, the initial clearance space is reduced to no clearance space and the elongate flat blade is firmly held against vibration, but the light contact between the elongate flat blade and the recessed wall enables the elongate flat blade to be displaced in a first direction to loosen the cutting element and in a second direction, opposite to the first direction, to tighten the cutting element. This eliminates any need to loosen the locking nuts to accomplish cutting element adjustment. The spacer plate extends through an elongate slot formed in the elongate flat blade.