Abstract: A component with a reflective substrate, a photoresist layer disposed on the reflective substrate, and a light diffusing layer sandwiched between the reflective substrate and the photoresist layer is provided. The light diffusing layer includes an outer metal oxide layer with an outer rough surface configured to diffuse laser light during laser interference lithography of the photoresist layer. The outer metal oxide is also configured to be reduced to a conductive metallic layer during electroplating of the substrate. The outer metal oxide layer includes a plurality of elongated light diffusing elements extending in an outward direction from the substrate such that the outer rough surface diffuses at least 90% of laser light during the laser interference lithography of the photoresist layer.

Abstract: A louvre system controls a flow of cooling air to a heat-generating element mounting inside a wing of an aircraft. The louvre system includes a louvre operably connected to the wing and structured to be rotatable to control airflow through an air intake of the wing into an interior of the wing. A louvre actuation mechanism is operably connected to the louvre and configured to control rotation of the louvre. A memory is communicably coupled to a processor and stores a louvre control module configured to autonomously control operation of the louvre actuation mechanism to control rotation of the louvre responsive to a temperature of a heat-generating element mounted in the wing interior.

Abstract: A ram chute assembly is provided for directing a flow of cooling air into a hollow wing structure of an aircraft. The ram chute assembly includes a ram chute body defining an interior passage, and an air inlet enabling an airflow from an exterior of the ram chute body into the interior passage. The assembly is structured to be attachable to an exterior of an engine nacelle so as to receive propeller wash air through the air inlet into the interior passage when a propeller of the engine nacelle is rotating. The ram chute assembly is also structured to discharge the propeller wash air in a direction toward an air intake opening formed in an upper surface of a hollow wing structure on which the engine nacelle is mounted.

Abstract: In various embodiments, a cooling assembly includes a heat-generating device, a metal inverse opal (MIO) layer, a shared coolant reservoir, a passive heat exchange circuit, and an active heat exchange circuit. The MIO layer is bonded to the heat-generating device. The shared coolant reservoir contains a coolant fluid. The passive heat exchange circuit directs coolant fluid from the shared coolant reservoir through the MIO layer and back to the shared coolant reservoir. The active heat exchange circuit includes a pump and a heat exchanger, wherein the active heat exchange circuit draws the coolant fluid from the shared coolant reservoir through the heat exchanger and returns the coolant fluid to the shared coolant reservoir.

Abstract: A system includes a power device unit coupled to a substrate. An upper cooling assembly is thermally coupled to an upper side of the substrate. A lower cooling assembly is thermally coupled to a lower side of the substrate. A gate driver unit is coupled to the upper cooling assembly. At least one upper via is formed through the upper cooling electrically coupling the gate driver unit to the power device unit. A capacitor unit is coupled to the lower cooling assembly. At least one lower via formed through the lower cooling assembly electrically coupling the capacitor unit to the power device unit.

Abstract: Aspects of the disclosure provide a method including determining a measurement configuration for one or more piezoelectric devices in an electronic apparatus. The electronic apparatus includes an electronic device mounted on a substrate block using a bonding layer. The one or more piezoelectric devices including a first subset and a second subset are attached to one of the electronic device and the bonding layer. The method includes performing, based on the measurement configuration, a defect measurement on the electronic apparatus by causing the first subset to transmit and the second subset to receive one or more acoustic signals. The method includes determining whether at least one mechanical defect is located in at least one of (i) the bonding layer, (ii) the electronic device, (iii) the substrate block, (iv) interfaces of the electronic device, the bonding layer, and the substrate block based on the received one or more acoustic signals.

Abstract: A hybrid cooling system of an electric machine is contemplated. The hybrid cooling system includes a propeller assembly comprising a propeller, a housing comprising a stator and a rotor coupled to the propeller, and one or more capacitors, a gate drive electronics board, a cold plate, a substrate, power electronics coupled to substrate and the cold plate, a pump for pumping liquid coolant, and a heat exchanger.

Abstract: Apparatuses, systems, and methods relate to technology to identify that a focal length of an adjustable lens is to be modified, where the adjustable lens is supported by a frame. The technology controls a light source to emit light towards the adjustable lens, wherein the light source is supported by the frame and adjusts a curvature of the adjustable lens with the light to modify the focal length of the adjustable lens.

Abstract: Embodiments of the disclosure relate to an electronic assembly including a substrate having a first surface and a second surface opposite to the first surface and one or more electronic devices bonded to the first surface of the substrate. A first heat-storing region is embedded within the substrate and proximate to the second surface. The first heat-storing region comprises a phase change material encapsulated by an encapsulating layer. A melting temperature of the encapsulating layer is higher than a melting temperature of the phase change material and a maximum operating temperature of the one or more electronic devices. A heat transfer layer is embedded within the substrate and thermally connects the first heat-storing region to the one or more electronic devices.

Abstract: A power electronics module includes a glass layer with one or more vias extending through the glass layer and having an electrically and thermally conductive material disposed within the one or more vias, a power electronic device directly bonded to a first surface of the glass layer, and, a cooling structure thermally coupled to a second surface of the glass layer.

Abstract: Methods, apparatuses and systems provide for technology that includes a transistor assembly for a power electronics apparatus having a plurality of transistor pairs arranged in a common plane, where for each pair of transistors one transistor is flipped relative to the other transistor. The technology further includes a first lead frame arranged parallel to and electrically coupled to the first transistor in each transistor pair, a second lead frame coplanar to the first lead frame and arranged parallel to and electrically coupled to the second transistor in each transistor pair, and a plurality of output lead frames arranged coplanar to each other, where each respective output lead frame is arranged parallel to and electrically coupled to a respective one pair of the plurality of transistor pairs.

Abstract: A head mounted display apparatus includes a display unit having an optical member, one or more elastically deformable position adjustment members operable to flexibly mount the optical member, and one or more light sources. The optical member has a reflective surface to direct rendered visual content towards an eye of a user. The elastically deformable position adjustment member(s) are moveable between a contracted state and an expanded state to adjust a spatial orientation of the optical member in a manner that adjusts a spatial orientation of the rendered visual content relative to the eye of the user. The elastically deformable position adjustment member(s) has one or more photochromatic regions that are moveable in response to exposure to ultraviolet (UV) light emitted by the light sources.

Abstract: A method to form a three-dimensional photonic crystal template with a gradient structure involves irradiating a photoresist composition of a thickness of at least 15 ?m from at least four laser beams to yield a periodic patterned with a percolating matrix of mass in constructive volumes of a cured photoresist composition and destructive volumes of voids free of condensed matter where the proportion of constructive volume displays a gradient from the irradiated surface to the substrate after development. For a given light intensity, photoinitiator concentration in the photoresist composition, and a given thickness, by irradiating for a relatively short period, a three-dimensional photonic crystal template displaying a gradient having greater constructive volume proximal the air interface forms and a relatively long irradiation period results in a gradient having greater constructive volume proximal the substrate.

Abstract: A power electronics assembly includes a vapor chamber and a heat-generating device. The vapor chamber includes a housing defining an evaporator side and a condenser side and a pedestal integrally formed with an extending from the evaporator side, the pedestal comprising a non-rectangular shape corresponding to a thermal management objective. The heat-generating device is coupled to the pedestal.

Abstract: A dynamic wireless power transfer system can include a dynamic wireless power transfer transmission system and a dynamic wireless power transfer reception system. The dynamic wireless power transfer transmission system can include a signal receiver, an array of coils of conductors, an array of switches, and a controller. The dynamic wireless power transfer reception system can include a signal transmitter and an array of coils of conductors. The signal transmitter can be configured to transmit, to the signal receiver, a signal. The signal can include information indicative of a size of the array of coils of conductors of the dynamic wireless power transfer reception system. The array of switches can be configured to connect an alternating current source to the array of coils of conductors of the dynamic wireless power transfer transmission system. The controller can control, according to the information, positions of switches of the array of switches.

Abstract: Systems, apparatus, computer implemented methods, and computer program products to enhance the operation of a vehicle. A HUD apparatus includes a laser light source to generate laser light to be reflected an optical member, one or more elastically deformable position adjustment members, and one or more UV light sources. The elastically deformable position adjustment members are operable to adjust a spatial orientation of the optical member, and include one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to UV light emitted by the U light source(s). In that way, adjustments in the spatial orientation of the optical member and a change in direction of laser light reflected by the optical member as obtained.

Abstract: A passive thermal regulation system includes a substrate and a coating. The coating is positioned to encapsulate at least a portion of the substrate. The coating includes a first hydrogel layer and a second hydrogel layer. The first hydrogel layer has a plurality of carbon materials configured to absorb a solar radiation. The second hydrogel layer includes a hydrogel that is different from the first hydrogel layer. The coating, at a first temperature, causes the passive thermal regulation system to passively switch from a solar reflective state to solar absorber state to permit the plurality of carbon materials to absorb the solar radiation. At a second temperature, the coating causes the system to passively switch from the solar absorber state to the solar reflective state where the hydrogel of the second hydrogel layer inhibits the solar radiation from absorption. The second temperature is greater than the first temperature.

Abstract: A light apparatus includes an optical member, composed of an elastically deformable material, having a reflective surface to reflect light. The optical member moveable between a first state in which the reflective surface has a first structural shape, and a plurality of second states in which the reflective surface has a second structural shape different than the first structural shape. Elastically deformable position adjustment members are operable to move the optical member between the first state and the plurality of second states. The elastically deformable position adjustment members have one or more photochromatic regions that are moveable in response to exposure to UV light. Light sources are operable to selectively emit illuminating UV light in a direction that contacts the one or more photochromatic regions to thereby adjust an orientation of the optical member in a manner which changes a direction of light reflected by the optical member.

Abstract: Systems, apparatus, computer implemented methods, and computer program products to enhance the operation of a vehicle. A HUD apparatus includes a laser light source to generate laser light to be reflected an optical member, one or more elastically deformable position adjustment members, and one or more UV light sources. The elastically deformable position adjustment members are operable to adjust a spatial orientation of the optical member, and include one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to UV light emitted by the U light source(s). In that way, adjustments in the spatial orientation of the optical member and a change in direction of laser light reflected by the optical member as obtained.

Abstract: An aerial vehicle includes a body and a wireless charging receiver pad connected to the body, whereby the aerial vehicle is configured to be wirelessly charged when parked above a wireless charging transmitter pad. The aerial vehicle includes landing gear connected to the body and extending underneath the body. The landing gear is configured for actuation to control the location of the receiver pad with respect to the transmitter pad.