Abstract: Methods of generating a camera model are provided. A robotic assembly is used to move a calibration assembly relative to a camera assembly through a series of poses. The calibration assembly comprises a calibration target and markers. The camera assembly comprises a mount, a camera having a field of view, and markers. The predetermined series of poses, together, cause the calibration target to pass through the field of view of the camera. The camera is used to generate a respective image of the calibration target. A tracker is used, to determine respective locations in space of the markers. A transformation function is generated that maps onto a three-dimensional space the stored coordinates and determined locations in space of the markers and features of the calibration target. The transformation functions are used to generate a model of parameters of the camera. Systems are also provided.

Abstract: A sanitization apparatus may comprise a light source configured to emit a light having a first wavelength between 414 and 474 nm; a nonlinear crystal disposed proximal to the light source, the nonlinear crystal configured to receive the light having the first wavelength and output a first portion of the light having the first wavelength and a second portion of the light having a second wavelength, the second wavelength being half the first wavelength; and a prism configured to receive the first portion of the light and the second portion of the light, the prism configured to direct the second portion of the light toward a surface to be sanitized.

Abstract: An interface seal assembly for sealing a tubular filter element relative to a first component and a second component of a fluid filtration system. The interface seal assembly comprises an body located between the first and second components, and having: an aperture extending through the body for communicating with an internal cavity of the filter element; a first mounting surface comprising a first seal groove; and a second mounting surface opposite the first mounting surface, comprising a second seal groove. One of the first and second seal grooves has a circular shape, and the other has a non-circular shape. A first seal is located in the first seal groove, for sealing the interface body relative to one of the first and second components. A second seal is located in the second seal groove, for sealing the body relative to the other of the first and second components.

Abstract: A method of providing user access history for a collaborative document includes receiving, by a server, a first request for the collaborative document from a client device of a user of a plurality of users that have permission to access the collaborative document; providing the collaborative document to the client device for presentation to the user in a user interface on the client device; determining whether a collaborator type of the user matches a predefined collaborator type; responsive to determining that the collaborator type of the user matches the predefined collaborator type: creating a first user access history for the collaborative document based on accesses of the collaborative document by one or more of the plurality of users, and providing the first user access history for the collaborative document to the client device for display within a consolidated view of the user interface presenting the collaborative document.

Abstract: A terrestrial data communication gateway device for satellite communication comprising: at least one processor; memory accessible to the at least one processor; a LPWAN wireless communication subsystem for communication with multiple remote devices; a satellite communication subsystem for communication with at least one low earth orbit satellite. The memory stores program code executable by the processor to cause the processor to: perform server functions in relation to the multiple remote devices, and configure an edge computing module to perform data processing operations on signals received by the LPWAN communication subsystem. The data processing operations comprise compression of data received by the LPWAN communication subsystem to generate a compressed payload for transmission by the satellite communication subsystem. The memory comprises a backhaul scheduling module to schedule communication of a transmission by the satellite communication subsystem to the low earth orbit satellite.

Abstract: A layered diffuser-channel heat exchanger may comprise a plurality of fluid channel layers and a plurality of diffuser fin layers interleaved with the plurality of fluid channel layers. Each fluid channel layer of the plurality of fluid channel layers may have a first surface, a second surface opposite the first surface, and a fluid channel located between the first surface and the second surface.

Abstract: A duct-bank stub-up assembly includes a first pre-formed stub-up module that comprises a first plurality of conduits and a first encasing body. For each of the first conduits, a first end of the conduit provides a mating end on a mating side of the first encasing body and a second end of the conduit provides a mating end on a top surface of the first encasing body. The assembly further includes a second pre-formed stub-up module that comprises a second plurality of conduits and a second encasing body formed to have a stub-up section and a footer section. For each of the second conduits, a first conduit end provides a mating end on a mating side of the footer section and a second conduit end provides a mating end on a top surface of the stub-up section. The first module is positioned on the footer of the second module.

Abstract: A terrestrial data communication gateway device for satellite communication comprising: at least one processor; memory accessible to the at least one processor; a LPWAN wireless communication subsystem for communication with multiple remote devices; a satellite communication subsystem for communication with at least one low earth orbit satellite. The memory stores program code executable by the processor to cause the processor to: perform server functions in relation to the multiple remote devices, and configure an edge computing module to perform data processing operations on signals received by the LPWAN communication subsystem. The data processing operations comprise compression of data received by the LPWAN communication subsystem to generate a compressed payload for transmission by the satellite communication subsystem. The memory comprises a backhaul scheduling module to schedule communication of a transmission by the satellite communication subsystem to the low earth orbit satellite.

Abstract: A layered diffuser-channel heat exchanger may comprise a plurality of fluid channel layers and a plurality of diffuser fin layers interleaved with the plurality of fluid channel layers. Each fluid channel layer of the plurality of fluid channel layers may have a first surface, a second surface opposite the first surface, and a fluid channel located between the first surface and the second surface.

Abstract: Methods of generating a camera model are provided. A robotic assembly is used to move a calibration assembly relative to a camera assembly through a series of poses. The calibration assembly comprises a calibration target and markers. The camera assembly comprises a mount, a camera having a field of view, and markers. The predetermined series of poses, together, cause the calibration target to pass through the field of view of the camera. The camera is used to generate a respective image of the calibration target. A tracker is used, to determine respective locations in space of the markers. A transformation function is generated that maps onto a three-dimensional space the stored coordinates and determined locations in space of the markers and features of the calibration target. The transformation functions are used to generate a model of parameters of the camera. Systems are also provided.

Abstract: A portable sanitization system may comprise: a portable device; a light source disposed in the portable device, the light source configured to emit a light having a wavelength between 414 and 474 nm; a light converter comprising a nonlinear crystal configured for frequency doubling; and a light guide extending from the light source to the light converter, the light converter disposed proximal a tip of the light guide.

Abstract: A sanitization apparatus may comprise a light source configured to emit a light having a first wavelength between 414 and 474 nm; a nonlinear crystal disposed proximal to the light source, the nonlinear crystal configured to receive the light having the first wavelength and output a first portion of the light having the first wavelength and a second portion of the light having a second wavelength, the second wavelength being half the first wavelength; and a prism configured to receive the first portion of the light and the second portion of the light, the prism configured to direct the second portion of the light toward a surface to be sanitized.

Abstract: Disclosed herein are methods, systems, and devices for an awning. An awning apparatus of the disclosure includes a plurality of vertical support members and one or more flexible connectors coupled to the plurality of vertical support members. The one or more flexible connectors are removably secured to an upper end of at least one of the plurality of vertical support members. The apparatus includes a cover adapted for engaging the plurality of vertical support members. The apparatus includes a clipping mechanism attached to the cover and configured to removably secure the cover to at least one of the one or more flexible connectors. The apparatus is such that the one or more flexible connectors is configured to provide tension to hold the cover in a stretched orientation.

Abstract: An interface seal assembly for sealing a tubular filter element relative to a first component and a second component of a fluid filtration system. The interface seal assembly comprises an body located between the first and second components, and having: an aperture extending through the body for communicating with an internal cavity of the filter element; a first mounting surface comprising a first seal groove; and a second mounting surface opposite the first mounting surface, comprising a second seal groove. One of the first and second seal grooves has a circular shape, and the other has a non-circular shape. A first seal is located in the first seal groove, for sealing the interface body relative to one of the first and second components. A second seal is located in the second seal groove, for sealing the body relative to the other of the first and second components.

Abstract: a duct-bank stub-up assembly includes a first pre-formed stub-up module that comprises a first plurality of conduits and a first encasing body. For each of the first conduits, a first end of the conduit provides a mating end on a mating side of the first encasing body and a second end of the conduit provides a mating end on a top surface of the first encasing body. The assembly further includes a second pre-formed stub-up module that comprises a second plurality of conduits and a second encasing body formed to have a stub-up section and a footer section. For each of the second conduits, a first conduit end provides a mating end on a mating side of the footer section and a second conduit end provides a mating end on a top surface of the stub-up section. The first module is positioned on the footer of the second module.

Abstract: A method of providing user access history for a collaborative document includes receiving, by a server, a first request for the collaborative document from a client device of a user of a plurality of users that have permission to access the collaborative document; providing the collaborative document to the client device for presentation to the user in a user interface on the client device; determining whether a collaborator type of the user matches a predefined collaborator type; responsive to determining that the collaborator type of the user matches the predefined collaborator type: creating a first user access history for the collaborative document based on accesses of the collaborative document by one or more of the plurality of users, and providing the first user access history for the collaborative document to the client device for display within a consolidated view of the user interface presenting the collaborative document.

Abstract: A method of providing user access history for a collaborative document includes receiving, by a server, a request for the collaborative document from a user device of a user of a plurality of users that have permission to access the collaborative document, providing, by the server, the collaborative document to the user device for presentation to the user in a user interface on the user device, receiving, from the user device, a request for the user access history for the collaborative document presented in the user interface on the user device, creating, by the server, the user access history for the collaborative document based on accesses of the collaborative document by one or more of the plurality of users, and providing, by the server, the user access history for the collaborative document to the user device for display in the user interface presenting the collaborative document.

Abstract: A duct bank assembly may include an elongate extending conduit with a length for receiving and passing through a cable or wire and an encasing body encasing the conduit along its longitudinal extent between a first mating end and an opposed second mating end of the body. Each mating end of the at least one elongate conduit has a male or female mating end for joining with a corresponding male or female mating end of an abutting duct bank assembly in a self-locking, self-sealing joint.

Abstract: A duct bank assembly may include an elongate extending conduit with a length for receiving and passing through a cable or wire and an encasing body encasing the conduit along its longitudinal extent between a first mating end and an opposed second mating end of the body. Each mating end of the at least one elongate conduit has a male or female mating end for joining with a corresponding male or female mating end of an abutting duct bank assembly in a self-locking, self-sealing joint.

Abstract: A terrestrial data communication gateway device for satellite communication comprising: at least one processor; memory accessible to the at least one processor; a LPWAN wireless communication subsystem for communication with multiple remote devices; a satellite communication subsystem for communication with at least one low earth orbit satellite. The memory stores program code executable by the processor to cause the processor to: perform server functions in relation to the multiple remote devices, and configure an edge computing module to perform data processing operations on signals received by the LPWAN communication subsystem. The data processing operations comprise compression of data received by the LPWAN communication subsystem to generate a compressed payload for transmission by the satellite communication subsystem. The memory comprises a backhaul scheduling module to schedule communication of a transmission by the satellite communication subsystem to the low earth orbit satellite.