Abstract: An optical metrology system for measurements of large aperture and freeform optical surfaces the system (100) comprising: a first mirror, having a plurality of degrees of freedom of motion; one or more optical elements comprising reconfigurable optical elements; and a controller (200). The system (100) is configured: configured to be optically coupled to an externally located surface under test, SUT (125), and to capture measurement data from each of a plurality individual subapertures, SAs, across the area of the SUT, each SA having a surface area smaller than that of the SUT. The metrology system is further configured to provide partial nulling of each of the SA measurements across the SUT, based on controlled adjustment of one or more of the metrology system, and the elements thereof. The measurement data, comprising measurements relating to the plurality of individual subapertures, SAs, is stitched to describe the full surface of the SUT.

Abstract: A method of controlling an HVAC circuit, comprises allowing refrigerant to circulate within the HVAC circuit, wherein the HVAC circuit comprises an evaporator coil, a condenser coil, at least one fan configured to provide airflow to the condenser coil, at least one expansion valve, and at least one compressor. The method continues by receiving a temperature measurement and determining based on the temperature measurement, a minimum fan speed configured to avoid pressure spikes within the condenser coil. The method concludes by sending a signal to the at the least one fan to direct the at least one fan to spin at a rate greater than or equal to the minimum fan speed when the measured temperature is less than a predetermined temperature, wherein, when the refrigerant circulates through the condenser coil, the minimum fan speed is greater than zero rotations per minute.

Abstract: A computer-implemented method to create a model used for fabrication of a device configured for placement in an anatomical cavity of a wearer may include first selecting training data and/or testing data by obtaining feedback and data for a plurality of devices fabricated for a plurality of subjects, wherein each of the plurality of devices are fabricated based on a three-dimensional scan of an anatomical cavity of one of the plurality of subjects. The training data set is used to train a machine learning model for transforming a three-dimensional scan of an anatomical cavity to a three-dimensional representation of a device for fabrication.

Abstract: A system and method are described that help to alleviate pressure and strain spikes in and around dead tubes or frontiers between stages in a multi-stage condenser coil. Instead of cycling a fan off and on, fans associated with the condenser are kept running at a low speed instead of being turned off. Preventing the fans from turning off completely helps to even out the pressure and strain spikes. The present teachings can be especially beneficial in aluminum-based coils. The present teachings include both a unit controller that carries out the teachings, and a system based on temperature and/or pressure switches connected to a fan controller.

Abstract: A system based on temperature and/or pressure switches connected to a fan controller. An HVAC circuit includes at least one condenser coil with a plurality of tubes, one or more stages coupled to one or more compressors, at least one temperature sensor, at least one fan configured to provide airflow across the plurality of tubes, and a controller. Instead of cycling the fan off and on, fans associated with the condenser are kept running at a low speed.

Abstract: A system and method for a multistage condenser is described that reduces problems associated with temperature and pressure differential strains on tubes above and below a dead tube. Instead of connecting the dead tube to the I/O manifold, a physical separation is created. The physical separation can be created by shortening the dead tube, coring a portion of the I/O manifold where the dead tube is received, independent I/O manifolds, or other means.

Abstract: A heating, ventilation, and air-conditioning (HVAC) system comprises a plurality of sensors, a plurality of tandem compressor assemblies that each comprise a first compressor and a second compressor, and a controller communicatively coupled to the plurality of sensors and the plurality of tandem compressor assemblies. The controller determines an increase in a cooling demand of a structure associated with the HVAC system based on data received from at least one of the plurality of sensors. Also, the controller compares an ambient temperature outside of the structure to a first threshold. In response to determining that the ambient temperature is greater than the first threshold, the controller operates the HVAC system in a first mode and in response to determining that the ambient temperature is less than the first threshold, the controller operates the HVAC system in a second mode.

Abstract: A system and method are described that help to alleviate pressure and strain spikes in and around dead tubes or frontiers between stages in a multi-stage condenser coil. Instead of cycling a fan off and on, fans associated with the condenser are kept running at a low speed instead of being turned off. Preventing the fans from turning off completely helps to even out the pressure and strain spikes. The present teachings can be especially beneficial in aluminum-based coils. The present teachings include both a unit controller that carries out the teachings, and a system based on temperature and/or pressure switches connected to a fan controller.

Abstract: The present invention provides a control system for managing lubricant levels in tandem compressor assemblies of a heating, ventilation, and air conditioning (HVAC) system. In transitioning from a partial load that operates a first compressor but not a second compressor of a tandem assembly to a full load that operates both the first and the second compressor, a controller of the HVAC system turns OFF both compressors of the tandem compressor assembly to allow time for lubricant levels to equalize between the first and the second compressor.

Abstract: A system and method for a multistage condenser is described that reduces problems associated with temperature and pressure differential strains on tubes above and below a dead tube. Instead of connecting the dead tube to the I/O manifold, a physical separation is created. The physical separation can be created by shortening the dead tube, coring a portion of the I/O manifold where the dead tube is received, independent I/O manifolds, or other means.

Abstract: The present invention provides a control system for managing lubricant levels in tandem compressor assemblies of a heating, ventilation, and air conditioning (HVAC) system. In transitioning from a partial load that operates a first compressor but not a second compressor of a tandem assembly to a full load that operates both the first and the second compressor, a controller of the HVAC system turns OFF both compressors of the tandem compressor assembly to allow time for lubricant levels to equalize between the first and the second compressor.

Abstract: The present invention provides a control system for managing lubricant levels in tandem compressor assemblies of a heating, ventilation, and air conditioning (HVAC) system. In transitioning from a partial load that operates a first compressor but not a second compressor of a tandem assembly to a full load that operates both the first and the second compressor, a controller of the HVAC system turns OFF both compressors of the tandem compressor assembly to allow time for lubricant levels to equalize between the first and the second compressor.

Abstract: A heating, ventilation, and air-conditioning (HVAC) system comprises a plurality of sensors, a plurality of tandem compressor assemblies that each comprise a first compressor and a second compressor, and a controller communicatively coupled to the plurality of sensors and the plurality of tandem compressor assemblies. The controller determines an increase in a cooling demand of a structure associated with the HVAC system based on data received from at least one of the plurality of sensors. Also, the controller compares an ambient temperature outside of the structure to a first threshold. In response to determining that the ambient temperature is greater than the first threshold, the controller operates the HVAC system in a first mode and in response to determining that the ambient temperature is less than the first threshold, the controller operates the HVAC system in a second mode.

Abstract: The present invention provides a control system for managing lubricant levels in tandem compressor assemblies of a heating, ventilation, and air conditioning (HVAC) system. In transitioning from a partial load that operates a first compressor but not a second compressor of a tandem assembly to a full load that operates both the first and the second compressor, a controller of the HVAC system turns OFF both compressors of the tandem compressor assembly to allow time for lubricant levels to equalize between the first and the second compressor.

Abstract: A regulatory compliance testing system permits a gaming machine (30-44) at a first location (14-20) to be tested for regulatory compliance with casino system software (44a,46) located at a second location (12) in a different jurisdiction. A plurality of different casino systems (46) can be kept at the second location (12) and each is associated with one specific port (54b-54e) at the first location so that each different type or model of gaming machine (14-20) has its own home port (54a-54e). A secured VPN Layer 2 network (24a-24e) including multisystem isolation made possible by VLAN (26a-26e) tunnels connects both locations and permits seamless and secure connectivity as if the gaming machine (30-44) and its associated accounting software (46) were located at the same location. The system (10) permits three (3) basic modes of testing. First, the gaming machine (30-44) may be tested at the first location (14-20) by an engineer at the first location (14-20).

Abstract: A regulatory compliance testing system permits a gaming machine (30-44) at a first location (14-20) to be tested for regulatory compliance with casino system software (44a,46) located at a second location (12) in a different jurisdiction. A plurality of different casino systems (46) can be kept at the second location (12) and each is associated with one specific port (54b-54e) at the first location so that each different type or model of gaming machine (14-20) has its own home port (54a-54e). A secured VPN Layer 2 network (24a-24e) including multisystem isolation made possible by VLAN (26a-26e) tunnels connects both locations and permits seamless and secure connectivity as if the gaming machine (30-44) and its associated accounting software (46) were located at the same location. The system (10) permits three (3) basic modes of testing. First, the gaming machine (30-44) may be tested at the first location (14-20) by an engineer at the first location (14-20).

Abstract: A method of producing a fastener free cabinet assembly. An embodiment of the method includes selecting at least two cross rails and at least two stiles. Each rail has a set of projecting tenons formed at opposite ends of the rail. Each tenon further has a contact surface defined at least in part by a first side surface, an end surface, and a second side surface. Each stile has an edge forming a groove shaped mortise, wherein the mortise forms a contact surface to engage with one of the tenons to define a bond gap. The embodiment also includes applying a predetermined amount of adhesive to each set of tenons, and engaging the at least two cross rails and the at least two stiles to form the cabinet assembly. The predetermined amount of adhesive does not exceed a volume of the bond gap.

Abstract: A method, system and computer program product is disclosed that provides timely, accurate and summarized information about possible threats to information technology environments. It is a tool that looks at multiple aspects of an IT threat, including both specific (traditional) IT threats and general (non-traditional) IT threats, and rates each threat's overall potential to do harm. A matrix is created that identifies a “threat score” to allow prioritization and reaction to the threats. The matrix takes both traditional IT threats and non-traditional IT threats and normalizes them on the same scale, giving users of the matrix the ability to understand the risks of both.