Abstract: A roller assembly for a mobile cleaning system for cleaning a work surface can include a drive shaft, a sheath, a bushing, and a bushing shroud. The drive shaft can be rotatable about a drive axis, and the drive shaft can include a driven end and an opposite bushing end. The sheath can be supported by the drive shaft and the sheath can be rotatable with the drive shaft. The sheath can include a shell engageable with the work surface. The bushing can be located about the bushing end of the drive shaft. The bushing shroud can be connected to the bushing. The sheath and the drive shaft can be together rotatable with respect to the bushing and the bushing shroud, the bushing shroud can include an outer portion defining a first radius of curvature and a recessed portion connected to the outer portion.

Abstract: A bone screw kit includes a support member, a screw, an extension sleeve, a connecting rod, a locking screw, a screw driver and an extension sleeve remover. The support member has two wings. An external wall of one axial end of the screw driver has ribs and one first snap. The first snap has oppositely a first outer diameter and a second outer diameter less than the first outer diameter. A through hole having a second snap is disposed on the locking screw furnished thereinside with grooves. The second snap has a first inner diameter less than the first outer diameter but larger than the second outer diameter. The locking screw and the screw driver are disposed in the support member and the extension sleeve. The extension sleeve having two extension wings sleeves the support member. Engagement structures are provide to engage the wing and the inner extension wing.

Abstract: An earphone, an earphone control method and an earphone control device are provided. The earphone control method and the earphone control device are applied to an earphone arranged with an ultrasonic transceiver and an ultrasonic receiver.

Abstract: A device for expanding spacing between spinous processes includes a first supporter, a second supporter and a pin. The first supporter includes a first protrusion, a second protrusion opposing the first protrusion, and a first concave portion formed between the first protrusion and the second protrusion for supporting one spinous process. The second supporter includes a third protrusion, a fourth protrusion opposing the third protrusion, and a second concave portion formed between the third protrusion and the fourth protrusion for supporting another spinous process. The pin pivots the first supporter to the second supporter so as to provide the device an expansion state and a close state for removal and installation between two spinous processes. In addition, a method for expanding spacing between spinous processes is also provided.

Abstract: A prediction engine predicts the performance of a neural network model executed on a hardware platform. The neural network model is compiled for the hardware platform. The neural network model includes multiple layers and each layer is defined by a set of operations and corresponding configuration settings of the operations. For each layer, the prediction engine performs feature embedding on the set of operations and the corresponding configuration settings to generate a feature embedded sequence of categorical feature vectors and numerical feature vectors. Positional encoding and a series of attention functions are applied on the feature embedded sequence to generate an encoded sequence. The prediction engine reduces the dimensions of the encoded sequence to output a performance metric of executing the neural network model on the hardware platform.

Abstract: A roller assembly for a mobile cleaning system for cleaning a work surface can include a drive shaft, a sheath, a bushing, and a bushing shroud. The drive shaft can be rotatable about a drive axis, and the drive shaft can include a driven end and an opposite bushing end. The sheath can be supported by the drive shaft and the sheath can be rotatable with the drive shaft. The sheath can include a shell engageable with the work surface. The bushing can be located about the bushing end of the drive shaft. The bushing shroud can be connected to the bushing. The sheath and the drive shaft can be together rotatable with respect to the bushing and the bushing shroud, the bushing shroud can include an outer portion defining a first radius of curvature and a recessed portion connected to the outer portion.

Abstract: A roller assembly for a mobile cleaning system for cleaning a work surface can include a drive shaft, a sheath, a bushing, and a bushing shroud. The drive shaft can be rotatable about a drive axis, and the drive shaft can include a driven end and an opposite bushing end. The sheath can be supported by the drive shaft and the sheath can be rotatable with the drive shaft. The sheath can include a shell engageable with the work surface. The bushing can be located about the bushing end of the drive shaft. The bushing shroud can be connected to the bushing. The sheath and the drive shaft can be together rotatable with respect to the bushing and the bushing shroud, the bushing shroud can include an outer portion defining a first radius of curvature and a recessed portion connected to the outer portion.

Abstract: In an embodiment, a method includes: forming a fin extending from a substrate; forming a first gate mask over the fin, the first gate mask having a first width; forming a second gate mask over the fin, the second gate mask having a second width, the second width being greater than the first width; depositing a first filling layer over the first gate mask and the second gate mask; depositing a second filling layer over the first filling layer; planarizing the second filling layer with a chemical mechanical polish (CMP) process, the CMP process being performed until the first filling layer is exposed; and planarizing the first filling layer and remaining portions of the second filling layer with an etch-back process, the etch-back process etching materials of the first filling layer, the second filling layer, the first gate mask, and the second gate mask at the same rate.

Abstract: According to a network space search method, an expanded search space is partitioned into multiple network spaces. Each network space includes a plurality of network architectures and is characterized by a first range of network depths and a second range of network widths. The performance of the network spaces is evaluated by sampling respective network architectures with respect to a multi-objective loss function. The evaluated performance is indicated as a probability associated with each network space. The method then identifies a subset of the network spaces that has the highest probabilities, and selects a target network space from the subset based on model complexity.

Abstract: A compensator compensates for the distortions of a power amplifier circuit. A power amplifier neural network (PAN) is trained to model the power amplifier circuit using pre-determined input and output signal pairs that characterize the power amplifier circuit. Then a compensator is trained to pre-distort a signal received by the PAN. The compensator uses a neural network trained to optimize a loss between a compensator input and a PAN output, and the loss is calculated according to a multi-objective loss function that includes one or more time-domain loss function and one or more frequency-domain loss functions. The trained compensator performs signal compensation to thereby output a pre-distorted signal to the power amplifier circuit.

Abstract: A device for expanding spacing between spinous processes includes a first supporter, a second supporter and a pin. The first supporter includes a first protrusion, a second protrusion opposing the first protrusion, and a first concave portion formed between the first protrusion and the second protrusion for supporting one spinous process. The second supporter includes a third protrusion, a fourth protrusion opposing the third protrusion, and a second concave portion formed between the third protrusion and the fourth protrusion for supporting another spinous process. The pin pivots the first supporter to the second supporter so as to provide the device an expansion state and a close state for removal and installation between two spinous processes. In addition, a method for expanding spacing between spinous processes is also provided.

Abstract: In an embodiment, a method includes: forming a fin extending from a substrate; forming a first gate mask over the fin, the first gate mask having a first width; forming a second gate mask over the fin, the second gate mask having a second width, the second width being greater than the first width; depositing a first filling layer over the first gate mask and the second gate mask; depositing a second filling layer over the first filling layer; planarizing the second filling layer with a chemical mechanical polish (CMP) process, the CMP process being performed until the first filling layer is exposed; and planarizing the first filling layer and remaining portions of the second filling layer with an etch-back process, the etch-back process etching materials of the first filling layer, the second filling layer, the first gate mask, and the second gate mask at the same rate.

Abstract: A roller assembly for a mobile cleaning system for cleaning a work surface can include a drive shaft, a sheath, a bushing, and a bushing shroud. The drive shaft can be rotatable about a drive axis, and the drive shaft can include a driven end and an opposite bushing end. The sheath can be supported by the drive shaft and the sheath can be rotatable with the drive shaft. The sheath can include a shell engageable with the work surface. The bushing can be located about the bushing end of the drive shaft. The bushing shroud can be connected to the bushing. The sheath and the drive shaft can be together rotatable with respect to the bushing and the bushing shroud, the bushing shroud can include an outer portion defining a first radius of curvature and a recessed portion connected to the outer portion.

Abstract: A tracking method for tracking a head-mounted device includes following steps. First pose data of the head-mounted device is tracked in an inside-out coordinate system. Second pose data of the head-mounted device is tracked in an outside-in coordinate system. A transformation relationship between the inside-out coordinate system and the outside-in coordinate system is calculated according to the first pose data and the second pose data. The first pose data in the inside-out coordinate system is transformed into third pose data in the outside-in coordinate system according to the transformation relationship. In response to that the second pose data is currently available, the second pose data is utilized to determine a device pose of the head-mounted device. In response to that the second pose data is currently unavailable, the third pose data is utilized to determine the device pose of the head-mounted device.

Abstract: A roller assembly for a mobile cleaning system for cleaning a work surface can include a drive shaft, a sheath, a bushing, and a bushing shroud. The drive shaft can be rotatable about a drive axis, and the drive shaft can include a driven end and an opposite bushing end. The sheath can be supported by the drive shaft and the sheath can be rotatable with the drive shaft. The sheath can include a shell engageable with the work surface. The bushing can be located about the bushing end of the drive shaft. The bushing shroud can be connected to the bushing. The sheath and the drive shaft can be together rotatable with respect to the bushing and the bushing shroud, the bushing shroud can include an outer portion defining a first radius of curvature and a recessed portion connected to the outer portion.

Abstract: A tracking method for tracking a head-mounted device includes following steps. First pose data of the head-mounted device is tracked in an inside-out coordinate system. Second pose data of the head-mounted device is tracked in an outside-in coordinate system. A transformation relationship between the inside-out coordinate system and the outside-in coordinate system is calculated according to the first pose data and the second pose data. The first pose data in the inside-out coordinate system is transformed into third pose data in the outside-in coordinate system according to the transformation relationship. In response to that the second pose data is currently available, the second pose data is utilized to determine a device pose of the head-mounted device. In response to that the second pose data is currently unavailable, the third pose data is utilized to determine the device pose of the head-mounted device.

Abstract: Disclosed relates to a method and system of determining and recording eye motions. It is a distance measuring photoelectric proximity sensor fixed to the head, which senses the change in distance between the sensor and the eye when the eyelid is opening and closing to detect the eye open and close motion; with its small size and power saving features, it can be used as a head-mounted device for real-time management and long-term recording of eye usage, and is applied to human-machine interfaces to transmit signals generated by user's eye motions to control external components.

Abstract: The disclosed systems and methods may include a network device for evaluating, developing, and benchmarking a precision time protocol network. Additionally, the disclosed systems and methods may be directed to utilizing direct server return for content delivery network traffic. The disclosed apparatus may include a grommet and a clip, where the grommet includes an opening shaped to hold at least one cable such as a medusa cable and a groove around an outer diameter of the grommet. The disclosed apparatuses, systems, and methods may include an apparatus for organizationally distributing cables to rackmount network devices. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: In an embodiment, a method includes: forming a fin extending from a substrate; forming a first gate mask over the fin, the first gate mask having a first width; forming a second gate mask over the fin, the second gate mask having a second width, the second width being greater than the first width; depositing a first filling layer over the first gate mask and the second gate mask; depositing a second filling layer over the first filling layer; planarizing the second filling layer with a chemical mechanical polish (CMP) process, the CMP process being performed until the first filling layer is exposed; and planarizing the first filling layer and remaining portions of the second filling layer with an etch-back process, the etch-back process etching materials of the first filling layer, the second filling layer, the first gate mask, and the second gate mask at the same rate.

Abstract: An electrical assembly includes a system board and a power board closely arranged with each other in a parallel relation. An electronic package and a system connector are mounted upon an upper surface of the system board. A power connector and a set of connector units are mounted on an undersurface of the power board. Another set of connector units are formed on an upper surface of the electronic package. A heat sink is positioned upon the power board and contacts the electronic package via a center opening in the power board. After assembled, the power supply is provide through connection between the two sets of the connector units and that between the system connector and the power connector.