Abstract: A variable air volume (VAV) box includes a fan operable to induce airflow from a building space through the VAV box and discharge the airflow back to the building space, an air cleaning device positioned to clean the airflow through the VAV box before discharging the airflow back to the building space and configured to affect an air quality of the airflow, and a controller configured to operate the fan to modulate the airflow through the VAV box to achieve a target air quality for at least one of the airflow discharged from the VAV box or air within the building space.

Abstract: In some embodiments, the present disclosure provides an exemplary method that may include steps of receiving input data from at least one external data aggregator; utilizing a trained machine learning algorithm to generate a database of known queries; receiving subsequent input data from the at least one external aggregator; automatically updating the database of known queries associated with the plurality of users; utilizing the trained machine learning algorithm to perform a cross-reference analysis to determine a presence of a data record within the database of known queries; dynamically removing the data record from the database of known queries; utilizing the trained machine learning algorithm to predict a trigger associated with the presence of the at least one data record; and instructing a computing device to initiate a verification of the presence of the at least one data record.

Abstract: Systems and methods of video password based user authentication via machine learning techniques are disclosed. In one embodiment, an exemplary computer-implemented method may comprise: receiving a request to register a video password from a first user; establishing at least one user-specific authentication criterion for the first user based on first video password data; receiving a login attempt from a second computing device associated with a second user who submits to be the first user, the login attempt comprising second video password data; utilizing a trained video password authentication machine learning model to determine a first comparison result and a second comparison result based on the first and second video password data, and accepting or rejecting the login attempt based on at least one of the first comparison result and the second comparison result.

Abstract: An electric compressor includes a housing, a refrigerant inlet port, a refrigerant outlet port, an inverter module, a motor, a drive shaft, clamping mechanisms, and a compression device. The refrigerant inlet port is coupled to the housing and configured to introduce the refrigerant to an intake volume. The refrigerant outlet port is coupled to the housing and is configured to allow compressed refrigerant to exit a discharge volume. The inverter module is adapted to convert direct current electrical power to alternating current electrical power. The motor is mounted inside the housing. The plurality of clamping mechanisms are spaced about the outer diameter of the motor and configured to constrain the motor within housing. The compression device, coupled to the drive shaft, receives the refrigerant from the intake volume and compresses the refrigerant as the drive shaft is rotated by the motor.

Abstract: An electric compressor includes a housing, a refrigerant inlet port, a refrigerant outlet port, an inverter module, a motor, a drive shaft, a cylindrical sleeve, and a compression device. The refrigerant inlet port is coupled to the housing and configured to introduce the refrigerant to an intake volume. The refrigerant outlet port is coupled to the housing and is configured to allow compressed refrigerant to exit a discharge volume. The inverter module is adapted to convert direct current electrical power to alternating current electrical power. The motor is mounted inside the housing. The cylindrical sleeve has a tubular side wall and a top cover defining an interior cavity. The interior cavity has an open end. The cylindrical sleeve is configured to receive the motor therein and constrain the motor within interior cavity.

Abstract: A surface cleaning apparatus including a body defining an agitation chamber, an agitator partially disposed within the agitation chamber and configured to rotate about a pivot axis, and a debrider at least partially disposed within the agitation chamber. The agitator includes an elongated body having a first and a second end, a sidewall extending radially outward from the elongated body extending between the first and the second ends, and a plurality of bristles extending radially outward from the elongated body. The plurality of bristles are arranged in at least one row adjacent to the sidewall. The debrider includes a plurality of teeth configured to contact a portion of the sidewall as the agitator rotates about the pivot axis.

Abstract: A disinfection device system of a building comprising: a controller comprising at least one processor and at least one memory having instructions stored thereon that, when executed by the at least one processor, are configured to cause the at least one processor to: monitor one or more conditions of a space in the building; and selectively activate and deactivate at least one Far UV-C disinfection device installed in the space using the conditions of the space and one or more of an energy budget, a target total operating cost, or a net emissions target, wherein the Far UV-C disinfection device comprises at least one Far UV-C light source structured to output disinfecting light at a wavelength between 200 nm and 230 nm.

Abstract: A connection system comprises a printed circuit board. The printed circuit board comprises a top face and a bottom face. The printed circuit board also comprises a first edge that is normal to the top face and bottom face. The printed circuit board also comprises a second edge that is normal to the top face and bottom face. The first edge face and second edge face intersect at an angle that is not a straight angle. The connection system also comprises a coplanar card-edge socket on the printed circuit board. The socket comprises a top section that interfaces with the top face of the printed circuit board along the first and second edge faces of the printed circuit board. The socked also comprises a bottom section that interfaces with the bottom face of the printed circuit board along the first and second edge faces of the printed circuit board.

Abstract: One embodiment provides an apparatus for fluorescence lifetime imaging (FLI). The apparatus includes a deep neural network (DNN). The DNN includes a first convolutional layer, a plurality of intermediate layers and an output layer. The first convolutional layer is configured to receive FLI input data. Each intermediate layer is configured to receive a respective intermediate input corresponding to an output of a respective prior layer. Each intermediate layer is further configured to provide a respective intermediate output related to the received respective intermediate input. The output layer is configured to provide estimated FLI output data corresponding to the received FLI input data. The DNN is trained using synthetic data.

Abstract: A device may include a first set of electrodes, a second set of electrodes that is transverse the first set, and at least one connection between an electrode in the first set to an electrode in the second set by a high pass filter. The connected electrode(s) in the first set and the connected electrode(s) in the second set may form an antenna. The device may include a processor and memory. The memory may store programmed instructions which cause the processor, when executed, to transmit a wireless signal using the connected electrodes during a first time, and measure a capacitance signal using electrodes in the first set and electrodes in the second set during a second time.

Abstract: A building system including one or more storage devices storing instructions thereon that, when executed by one or more processors, cause the one or more processors to ingest information associated with a physical asset of a building, the physical asset being an indoor air quality device. The instructions further cause the one or more processors to cause a graphical model of the building to include a heat map of one of infection risk or particulate concentration overlaid onto a floor of the graphical model based on the information. The instructions further cause the one or more processors to generate a building layout recommendation based on the heat map of the one of the infection risk or the particulate concentration. The instructions further cause the one or more processors to cause a display device of a user device to display the graphical model including the heat map and the building layout recommendation within a user interface.

Abstract: A surface cleaning apparatus including a body defining an agitation chamber, an agitator partially disposed within the agitation chamber and configured to rotate about a pivot axis, and a debrider at least partially disposed within the agitation chamber. The agitator includes an elongated body having a first and a second end, a sidewall extending radially outward from the elongated body extending between the first and the second ends, and a plurality of bristles extending radially outward from the elongated body. The plurality of bristles are arranged in at least one row adjacent to the sidewall. The debrider includes a plurality of teeth configured to contact a portion of the sidewall as the agitator rotates about the pivot axis.

Abstract: Telling a human apart from a computer using a capacitance module may include receiving a request for human verification; determining a human-verification prompt; communicating the human-verification prompt using a prompting device in the capacitance module; detecting a response to the human-verification prompt using a user input sensor in the capacitance module; determining whether a human is operating the capacitance module based, in part, on the response detected with the user input detector; and returning a human verification result.

Abstract: A capacitance sensing module may include a capacitance sensor; a pressure sensor in mechanical communication with the capacitance sensor; a processor and memory; programmed instructions stored in the memory to cause the processor, when executed, to determine, with the capacitance sensor, a location of a user input; determine, with the pressure sensor, a pressure value of the user input applied to the capacitance sensor; and determine whether the pressure value exceeds a non-uniform actuation threshold value where the non-uniform actuation threshold value is based, at least in part, on the location of the user input on the capacitance sensor.

Abstract: One embodiment provides an apparatus for fluorescence lifetime imaging (FLI). The apparatus includes a deep neural network (DNN). The DNN includes a first convolutional layer, a plurality of intermediate layers and an output layer. The first convolutional layer is configured to receive FLI input data. Each intermediate layer is configured to receive a respective intermediate input corresponding to an output of a respective prior layer. Each intermediate layer is further configured to provide a respective intermediate output related to the received respective intermediate input. The output layer is configured to provide estimated FLI output data corresponding to the received FLI input data. The DNN is trained using synthetic data.

Abstract: An apparatus may include a stack of layers, the stack including a shield layer with a first surface, at least one capacitive sensor layer having at least one set of electrodes, which capacitive sensor layer is disposed within a first portion of the stack of layers, where the first portion of the stack of layers is located adjacent to the first surface of the shield layer, and an antenna incorporated in the first portion of the stack of layers.

Abstract: An air moving device (AMD) includes a housing that dampens noise and routes airflow. The AMD housing includes a focal-bearing surface that has an associated focal point. The focal-bearing surface routes airflow through the AMD housing and reflects and concentrates noise to the focal point. The AMD housing further includes a noise dampening structure at the focal point to reduce, absorb, and/or dampen the concentrated noise. Because the noise is concentrated, a relatively smaller size noise dampening structure may effectively or adequately reduce or dampen AMD noise. The smaller size noise dampening structure relatively reduces airflow impedance. As such, AMD housing may provide for both reduced AMD noise and relatively reduced airflow impedance therein and/or therefrom.

Abstract: A building system for a building. The building system can include one or more memory devices. The one or more memory device can store instructions. The instructions, when executed by one or more processors, can cause the one or more processors to receive, from one or more sensors, air quality measurements associated with one or more spaces of the building, and generate, using the air quality measurements, a productivity score for at least one of the building or at least one space of the one or more spaces of the building. The productivity score can be based on a predicted productivity or effect on productivity of one or more occupants of the building in view of the air quality measurements.

Abstract: An apparatus for forming a plasma may include one or more coupling ports to accept a radiofrequency (RF) current. The apparatus may additionally include one or more coupling structures which may include one or more conductive loops to permit the RF current to conduct from at least a first portion of the one or more coupling ports to at least a second port of the one or more coupling ports. The one or more conductive loops may each be configured to exhibit a first value of inductance in the absence of the plasma and to exhibit a second value of inductance in the presence of the plasma. The one or more coupling structures may each include a reactive element, in which each reactive element is coupled to a corresponding one of the one or more conductive loops so as to form a corresponding number of coupling structures. Each RF coupling structure may have a resonant frequency that increases in response to the presence of the plasma.