Abstract: A fluid immersion cooling system has a fluid tank containing a hydrocarbon dielectric fluid as a coolant fluid. One or more components of an electronic system is immersed in the coolant fluid. A gas cylinder contains a non-flammable, compressed filling gas. The temperature of the coolant fluid is monitored during operation of the electronic system. The filling gas is released from the gas cylinder and into the fluid tank when the temperature of the coolant fluid rises to a trigger temperature that is set based on the flash point of the coolant fluid. The filling gas covers a surface of the coolant fluid to block oxygen from interacting with vapors of the coolant fluid to prevent combustion.

Abstract: A fluid immersion cooling system includes a fluid tank that contains a layer of a dual-phase coolant fluid and one or more layers of single-phase coolant fluids. The dual-phase and single-phase coolant fluids are immiscible, with the dual-phase coolant fluid having a lower boiling point and higher density than a single-phase coolant fluid. A substrate of an electronic system is submerged in the tank such that high heat-generating components are immersed at least in the layer of the dual-phase coolant fluid. Heat from the components is dissipated to the dual-phase coolant fluid to generate vapor bubbles of the dual-phase coolant fluid. The vapor bubbles rise to a layer of a single-phase coolant fluid that is above the layer of the dual-phase coolant fluid. The vapor bubbles condense to droplets of the dual-phase coolant fluid. The droplets fall down into the layer of the dual-phase coolant fluid.

Abstract: An encrypted hard disk device is provided, including a near-field communication (NFC) sensing module, a processor, a storage unit, and a power switch. The NFC sensing module is configured to read a user identification (UID) of at least one sensor element. The processor is electrically connected to the NFC sensing module and the storage unit. The processor receives the UID and generates a control signal when the UID is approved. The power switch is electrically connected to the processor and the storage unit and maintains a conducting state according to the control signal and supplies power to the storage unit for accessing the storage unit.

Abstract: A fluid immersion cooling system includes a fluid tank that contains a layer of a dual-phase coolant fluid and one or more layers of single-phase coolant fluids. The dual-phase and single-phase coolant fluids are immiscible, with the dual-phase coolant fluid having a lower boiling point and higher density than a single-phase coolant fluid. A substrate of an electronic system is submerged in the tank such that high heat-generating components are immersed at least in the layer of the dual-phase coolant fluid. Heat from the components is dissipated to the dual-phase coolant fluid to generate vapor bubbles of the dual-phase coolant fluid. The vapor bubbles rise to a layer of a single-phase coolant fluid that is above the layer of the dual-phase coolant fluid. The vapor bubbles condense to droplets of the dual-phase coolant fluid. The droplets fall down into the layer of the dual-phase coolant fluid.

Abstract: Examples of the disclosure describe systems and methods for presenting virtual content on a wearable head device. In some embodiments, a state of a wearable head device is determined by minimizing a total error based on a reduced weight associated with a reprojection error. A view reflecting the determined state of the wearable head device is presented via a display of the wearable head device. In some embodiments, a wearable head device calculates a preintegration term based on the image data received via a sensor of the wearable head device and the inertial data received via a first IMU and a second IMU of the wearable head device. The wearable head device estimates a position of the device based on the preintegration term, and the wearable head device presents the virtual content based on the position of the device.

Abstract: Examples of the disclosure describe systems and methods for presenting virtual content on a wearable head device. In some embodiments, a state of a wearable head device is determined by minimizing a total error based on a reduced weight associated with a reprojection error. A view reflecting the determined state of the wearable head device is presented via a display of the wearable head device. In some embodiments, a wearable head device calculates a preintegration term based on the image data received via a sensor of the wearable head device and the inertial data received via a first IMU and a second IMU of the wearable head device. The wearable head device estimates a position of the device based on the preintegration term, and the wearable head device presents the virtual content based on the position of the device.

Abstract: A ventilation fan includes a housing having an opening, a grille structure positioned to cover the opening, a fan module provided in the housing and a function module. The grille structure includes a base defining an outlet, and a grille support spaced apart from the base and connected by the connecting columns A radial inlet is formed between the base and the grille support is in communication with the outlet. The base includes a holder having a holding opening axially downward and faced away from the housing. The function module is disposed within the holder through the holding opening.

Abstract: A fluid immersion cooling system has a fluid tank containing a hydrocarbon dielectric fluid as a coolant fluid. One or more components of an electronic system is immersed in the coolant fluid. A gas cylinder contains a non-flammable, compressed filling gas. The temperature of the coolant fluid is monitored during operation of the electronic system. The filling gas is released from the gas cylinder and into the fluid tank when the temperature of the coolant fluid rises to a trigger temperature that is set based on the flash point of the coolant fluid. The filling gas covers a surface of the coolant fluid to block oxygen from interacting with vapors of the coolant fluid to prevent combustion.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for calibrating an augmented reality device using camera and inertial measurement unit data. In some implementations, a bundle adjustment process jointly optimizes or estimates states of the augmented reality device. The process can use, as input, visual and inertial measurements as well as factory-calibrated sensor extrinsic parameters. The process performs bundle adjustment and uses non-linear optimization of estimated states constrained by the measurements and the factory calibrated extrinsic parameters. The process can jointly optimize inertial constraints, IMU calibration, and camera calibrations. Output of the process can include most likely estimated states, such as data for a 3D map of an environment, a trajectory of the device, and/or updated extrinsic parameters of the visual and inertial sensors (e.g., cameras and IMUs).

Abstract: An organic-inorganic hybrid material is disclosure. The organic-inorganic hybrid material contains 5˜50 wt % of inorganic compounds and has a characteristic peak at 1050±50 cm?1 in FTIR spectrum. Furthermore, the invention also provides a fabricating process of the organic-inorganic hybrid material as well as its starting material “isocyanates”. In particular, the isocyanates are prepared from carbonate containing compounds and amines.

Abstract: A method for an image processing circuit includes steps of: receiving a fingerprint image; performing a low-pass filtering on the fingerprint image to remove a moiré signal on the fingerprint image, to generate a filtered image; and performing a data binning on the filtered image to generate an output image.

Abstract: A cooling apparatus is provided. An external cooling fluid flows into an external inlet opening from an external inlet pipe and passes through a heat exchanger to flow out of an external outlet opening to an external outlet pipe. An internal cooling fluid flows into an internal inlet pipe from the server and flows into an internal inlet opening from the internal inlet pipe and passes through the heat exchanger for heat exchange with the external cooling fluid to flow out of an internal outlet opening to an internal outlet pipe. A hot-swap pump has a pump main body, an inlet anti-leakage pipe, an outlet anti-leakage pipe and a hot-swap connector. The inlet anti-leakage pipe includes an inlet connector and an inlet anti-leakage valve. The outlet anti-leakage pipe includes an outlet connector and an outlet anti-leakage valve. The hot-swap connector is electrically connected to the pump main body.

Abstract: A server computer system has one or more node assemblies. A node assembly has two motherboards that are stacked one over another with their component sides facing toward each other. Memory cards that are mounted on one motherboard are interlaced with memory cards that are mounted on the other motherboard. At least processors of the two motherboards are immersed in a coolant fluid in a fluid immersion cooling tank. A processor cooling stack is mounted over a processor. The processor cooling stack includes flow regulation structures with sidewalls that regulate flow of vapor bubbles of the coolant fluid away from the processor.

Abstract: A fluid immersion cooling system includes a fluid tank that contains a layer of a dual-phase coolant fluid and one or more layers of single-phase coolant fluids. The dual-phase and single-phase coolant fluids are immiscible, with the dual-phase coolant fluid having a lower boiling point and higher density than a single-phase coolant fluid. A substrate of an electronic system is submerged in the tank such that high heat-generating components are immersed at least in the layer of the dual-phase coolant fluid. Heat from the components is dissipated to the dual-phase coolant fluid to generate vapor bubbles of the dual-phase coolant fluid. The vapor bubbles rise to a layer of a single-phase coolant fluid that is above the layer of the dual-phase coolant fluid. The vapor bubbles condense to droplets of the dual-phase coolant fluid. The droplets fall down into the layer of the dual-phase coolant fluid.

Abstract: A ventilation fan is disclosure and includes a housing, a grille support, a fan module, a base, plural connecting columns and a function module. The grille support and the base form a grille structure mounted under a ceiling. The fan module disposed within the housing forms an airflow flowing. The base and the grille support are connected through the plural connecting columns and spaced apart from each other. An inlet radially formed between the base and the grille support is in communication with the outlet through the grille opening. The base includes a holder having a holding opening axially downward and faced away from the housing. The function module is disposed within the holder through the holding opening.

Abstract: An organic-inorganic hybrid material is disclosure. The organic-inorganic hybrid material contains 5˜50 wt % of inorganic compounds and has a characteristic peak at 1050±50 cm?1 in FTIR spectrum. Furthermore, the invention also provides a fabricating process of the organic-inorganic hybrid material as well as its starting material “isocyanates”. In particular, the isocyanates are prepared from carbonate containing compounds and amines.

Abstract: A ventilation fan includes a fan module provided in a housing attached to an opening in a ceiling, a grille support mounted under the ceiling to correspond to the opening, a lighting module having base and an LED element provided in the base and configured to project light axial and radially, a plurality of columns connecting the grill support and the base to define an inlet facing radially, and a function module provided in a holding opening of the base.

Abstract: A method for an image processing circuit includes steps of: receiving a fingerprint image; performing a low-pass filtering on the fingerprint image to remove a moiré signal on the fingerprint image, to generate a filtered image; and performing a data binning on the filtered image to generate an output image.

Abstract: A display device with a fingerprint sensing function is provided. The display device includes a display panel and a sensor panel. The display panel includes a plurality of display pixels. The sensor panel is disposed under the display panel. The sensor panel includes a plurality of sensor pixels arranged in an array. The array has a first sensor pitch in a first direction. Each of the sensor pixels includes a sensor. Every two neighboring sensors of the sensors have a first shift pitch in the first direction, and the first shift pitch is not equal to the first sensor pitch.