Abstract: A system configured to output an indication of engagement with a device. The system includes at least one processor and a memory coupled to the at least one processor. The memory is configured to store instructions. The at least one processor is configured to execute the instructions to cause the system to monitor usage of the device, determine the indication of engagement with the device based on the usage of the device, and output the indication of engagement with the device.

Abstract: Provided herein are methods and compositions utilizing one or more cementitious replacement materials, one or more alkaline activating materials, and, optionally one or more bonding materials and/or one or more setting time enhancer materials.

Abstract: The description relates to hinged devices, such as hinged computing devices. One example can include a first portion having a first display and a second portion having a second display and a hinge assembly rotatably securing the first and second portions. The hinge assembly can define rotation of the first portion by a first pair of hinge guide pins riding in a first guide track and rotation of the second portion by a second pair of hinge guide pins riding in a second guide track.

Abstract: A modular sensor and display module comprises an enclosure with a rigid frame and front and back visor lens encapsulating sensors, waveguide optics, and display/projection devices that provide various functions for a typical head-mounted device. A front visor may conceal sensors and other components and may further provide dimming for holographic displays. The modular sensor and display module may include a standard interface for attachment to various fit systems, including, for example, headband, VR headset, glasses temples, helmet, and the like. A further module, such as a rear-attachment module, may be provided that can provide auxiliary compute, storage, and power resources for the modular sensor and display module.

Abstract: A modular sensor and display module comprises an enclosure with a rigid frame and front and back visor lens encapsulating sensors, waveguide optics, and display/projection devices that provide various functions for a typical head-mounted device. A front visor may conceal sensors and other components and may further provide dimming for holographic displays. The modular sensor and display module may include a standard interface for attachment to various fit systems, including, for example, headband, VR headset, glasses temples, helmet, and the like. A further module, such as a rear-attachment module, may be provided that can provide auxiliary compute, storage, and power resources for the modular sensor and display module.

Abstract: The description relates to devices, such as computing devices that have hinged portions. One example can include a first portion and a second portion. This example can also include a multi-pivot hinge unit rotatably securing the first and second portions. This example can further include a set of rigid hinge cover portions that are configured to be able to rotate relative to one another while collectively covering the multi-pivot hinge unit.

Abstract: A noise reducing device for a pressurized fluid stream, i.e., a gas, includes a housing. An inlet end and an outlet end of the housing each have at least one orifice for passing a fluid therethrough. The inlet end orifice includes an inlet face and an outlet face and the inlet end orifice is configured for maintaining a backpressure upstream of the inlet end orifice. A diffusing pack material is disposed within the housing. One or more stiffeners may be disposed within the diffusing pack material to ensure that the diffusing pack material maintains contact with the outlet face of the inlet end orifice and/or to prevent the migration of the diffusing pack material within the housing, thereby maintaining a homogeneous distribution of the pack material.