Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.

Abstract: A liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metal sleeve around the perimeter of the dielectric plates to form a device assembly. The configuration allows for more direct contact between the electronic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.

Abstract: A liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metallic seal around the perimeter of the dielectric plates to form a device assembly, and then forms another metallic seal between the device assembly and a housing. The configuration allows for more direct contact between the electronic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.

Abstract: A volumetric display that includes a dispersion block defining a plurality of voxels that are characterized as being visibly apparent when illuminated by impinging light, a projector configured to project one or more light rays for illuminating one or more of the plurality of voxels, and a plurality of arrays of electrowetting mirrors arranged about the dispersion block, wherein each electrowetting mirror is operable to reflect a light ray from the projector toward a selected voxel. The arrays of electrowetting minors provide for a volumetric display that is readily focused.

Abstract: A liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metal sleeve around the perimeter of the dielectric plates to form a device assembly. The configuration allows for more direct contact between the electronic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.

Abstract: A liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metallic seal around the perimeter of the dielectric plates to form a device assembly, and then forms another metallic seal between the device assembly and a housing. The configuration allows for more direct contact between the electronic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.

Abstract: An assembly for liquid cooling electronics by direct submersion into circulated engine coolant that includes an epoxy material dispensed around leads of electronics devices in a manner effective to mechanically secure the electronics devices to the assembly and prevent engine coolant leakage around the leads, and a Parylene™ coating layer deposited in a manner effective to protect the electronic device from electrically conductive engine coolant such as ethylene glycol. Such an assembly is useful in hybrid electric vehicles that have engine coolant available from the vehicle's internal combustion engine.

Abstract: An assembly for liquid cooling electronics by direct submersion into circulated engine coolant that includes an epoxy material dispensed around leads of electronics devices in a manner effective to mechanically secure the electronics devices to the assembly and prevent engine coolant leakage around the leads, and a Parylene™ coating layer deposited in a manner effective to protect the electronic device from electrically conductive engine coolant such as ethylene glycol. Such an assembly is useful in hybrid electric vehicles that have engine coolant available from the vehicle's internal combustion engine.

Abstract: A dual view display system to display two different images in substantially opposite direction using a single transparent display to time-multiplex the images and shutter devices to alternately block each side from being viewed according to the image being displayed.

Abstract: Systems and methods for biological and chemical gas treatment are disclosed. The systems may generally include a biological treatment zone and a chemical oxidation zone. An oxidizing agent subsystem may deliver an oxidizing agent, such as chlorine dioxide, to the chemical oxidation zone. The oxidizing agent subsystem may generate the oxidizing agent in situ from a product of the biological treatment zone. The oxidizing agent subsystem may include a reaction chamber and a source of a reactant, such as an alkaline metal chlorite reservoir. A controller may be in communication with various sensors and other components to generally manage operation of the disclosed systems.

Abstract: A system and method to display a plurality of different images at multiple distinct locations using a single image projector and an image propagation control means to control a propagation pathway from the projector to a display at each location.

Abstract: A dual view display system to display two different images in substantially opposite direction using a single transparent display to time-multiplex the images and shutter devices to alternately block each side from being viewed according to the image being displayed.

Abstract: A system and method to display a plurality of different images at multiple distinct locations using a single image projector and an image propagation control means to control a propagation pathway from the projector to a display at each location.

Abstract: The laser of a laser-generated windshield display is controlled to initially deflect the laser beam in the direction of a reflective target disposed outside a display region of the windshield, and a sensor disposed in a reflection path of the target is sampled to detect the presence of a feedback signal that occurs when the laser beam impinges on the sensor. If the feedback signal is detected, the laser beam is deflected onto the display region to generate a driver display; but if the feedback signal is not detected, the laser is automatically turned-off. Once the laser is turned off for lack of a feedback signal, the control is repeated following a specified delay interval so that the driver display will automatically resume the when the condition that prevented generation of the feedback signal is cured.

Abstract: The laser of a laser-generated windshield display is controlled to initially deflect the laser beam in the direction of a reflective target disposed outside a display region of the windshield, and a sensor disposed in a reflection path of the target is sampled to detect the presence of a feedback signal that occurs when the laser beam impinges on the sensor. If the feedback signal is detected, the laser beam is deflected onto the display region to generate a driver display; but if the feedback signal is not detected, the laser is automatically turned-off. Once the laser is turned off for lack of a feedback signal, the control is repeated following a specified delay interval so that the driver display will automatically resume the when the condition that prevented generation of the feedback signal is cured.

Abstract: A method of forming a Ball Grid Array (BGA) package having an increased standoff height after solder reflow is described. A substrate containing a plurality of first solder bond pads and a component containing a plurality of second solder bond pads are arranged in parallel spaced relationship to form an arrangement, each first and second bond pad being in contact with a solder ball therebetween. Solder balls are formed of a core, which remains solid at solder reflow temperatures, encapsulated with a reflowable solder layer. First standoff height of the arrangement is largely determined by the diameter of the solder ball. Upon heating to solder reflow temperatures, the solder coalesces between the core and the bond pads. Upon cooling of the arrangement, the second standoff height of the BGA package is greater than the first standoff height of the arrangement.

Abstract: A system and method for the purification and biodeodorizing of a gas are disclosed. The system is highly adaptable and capable of operating in a variety of modes to tailor performance of the system to specific odor control applications. The scrubber stages of the system may each be maintained at different conditions to selectively promote bacterial activity that targets a variety of odorous constituents. The pH level of the irrigation fluid provided to each scrubber stage may be controlled.

Abstract: An electronic assembly and/or a mold is constructed to reduce deflection and resultant damage to components and/or an associated printed circuit board of the electronic assembly when the electronic assembly is overmolded.

Abstract: A new apparatus is provided as part of a system for use in hospitals and the like, which safely stores and packages biohazardous wastes. The upper portion of the apparatus includes a pneumatically operated descending pressure plate and anti-pathogen provisions. The lower portion encloses a slide-out compartment in which disposable waste containers are placed. Bags containing such wastes are deposited in the container from time to time and are continually exposed to ultraviolet light, while air is drawn away for filtering and safe discharge. When several bags of waste have been so deposited, a planar divider for the waste container is pressed downward, gently leveling the bags of waste beneath it, while the air expelled is sprayed with an anti-pathogenic spray. These operations are repeated using a succession of such dividers until a container has been substantially filled; it is then removed for disposal. Novel safety features are incorporated in the pneumatic circuitry.

Abstract: A combination fluid collection and disposal apparatus for collecting and disposing fluid aspirated from a patient from a surgical procedure is disclosed which comprises a collection unit for collecting the fluid and a treatment unit for coupling with the collection unit to remove the fluid from the collection unit and to dispose the fluid. The collection unit comprises a reservoir for the temporary storage of fluids aspirated from the patient, a vacuum port for connecting the collection unit to a vacuum source, and a vacuum line connecting the vacuum port to the reservoir. The collection unit also comprises at least one suction port adapted for connection to a suction tube for aspirating fluids from the patient, a suction line connecting the suctioln port to the reservoir, and a drain generally adjacent the bottom of the reservoir.