Abstract: A device for cleaning a finished monocrystalline square rod may include a washer arranged on a side of the square rod for washing the square rod and a dryer arranged around the square rod for blow-drying the washed square rod.

Abstract: The present disclosure provides a silicon bar rinsing device comprising: a rinsing portion, wherein the rinsing portion is a cavity having a upper opening and is configured to rinse the silicon bar; an adjusting portion disposed in the rinsing portion; a compressed air pipeline disposed on a side of the rinsing portion and communicated with the rinsing portion; a reuse water pipeline disposed on an other side of the rinsing portion opposite to the compressed air pipeline and communicated with the rinsing portion; and a control unit disposed on a upper end of the rinsing portion and configured to control turning on or off of the silicon bar rinsing device.

Abstract: Embodiments of the present disclosure relate to a permission setting method and apparatus, a device, and a medium. The method includes: displaying a permission customization control, in response to a trigger operation on a permission setting object of task information, the permission setting object including a first information object and/or a second information object, the second information object being subordinate to the first information object; displaying a permission editing interface, in response to a trigger operation on the permission customization control, and receiving customization permission information via the permission editing interface; and displaying the customization permission information corresponding to the permission setting object. Therefore, a hierarchy structure based on the task information satisfies a setting need for content-based permission customization, and improves a permission management efficiency.

Abstract: The present application provides a large-sized single crystal cutting device and a method of using the same. The device includes a cutting system, a commutation system, and a detection system. The cutting system includes a cutting line, a pay-off axis, a guide wheel, and a take-up axis. The commutation system is disposed between the pay-off axis and the take-up axis to adjust a tension and a line speed of the cutting line. The detection system is configured to detect the tension and the line speed of the cutting line.

Abstract: A transmission device for a planetary gear train multi-gear hybrid vehicle and a transmission method therefore are provided. An input end of an input shaft is connected to an engine, an output end of the input shaft is connected to a front-end motor through a first planetary gear train, and the input shaft is connected to an output shaft through a first clutch. The output shaft is connected to a third planetary gear train, the third planetary gear train is connected to a second clutch and a second planetary gear train, and the second clutch and the second planetary gear train are both connected to a third clutch. The second planetary gear train is connected to a rear-end motor.

Abstract: A system and a method for squaring a ingot are provided, the system for squaring a ingot, including: a squaring chamber configured to remove cut edges of the ingot; and a movement stage disposed at one side of the squaring chamber in a first direction, wherein the movement stage is provided with a loading mechanism and a unloading mechanism, the loading mechanism and the unloading mechanism are respectively arranged on two sides of the movement stage opposite to each other in a second direction different from the first direction, and while the unloading mechanism collects the cut edges and removes the ingot after removal of the cut edges, the loading mechanism is configured to transport another ingot to be squared to the squaring chamber.

Abstract: Various systems and methods are described for implementing remote attestation and data provenance verification. An example method for attestation and provenance verification, performed by a computing node, includes: receiving evidence from a client relating to a computing task; analyzing the evidence to determine a provenance verification result for trustworthiness of the computing task; evaluating compliance of the computing task with a policy; and returning an attestation token that includes the provenance verification result for the computing task, in response to determining the computing task is compliant with the policy.

Abstract: A two-gear and dual-motor driven hybrid power transmission device and a transmission method therefore are provided, belonging to the technical field of transmissions. An input end of an input shaft is connected to an engine power system, and an output end of the input shaft is connected to a front-end motor by means of a front-row planetary gear train. The front-row planetary gear train is connected to one end of a first clutch, another end of the first clutch is connected to an input end of an output shaft, and an output end of the output shaft is connected to a rear axle of a vehicle. The output shaft is connected to a rear-end motor by means of a rear-row planetary gear train, and the rear-row planetary gear train is connected to a second clutch and a third clutch.

Abstract: An ultrahigh-pressure acid-fracturing isodiametric hose assembly, comprising a hose body and a metal joint. The metal joint comprises an inner tube, a first outer tube the inner tube, and a second outer tube. The first outer tube and the second outer tube each is an independent pressing part. An external groove is provided at an outer wall of the inner tube. An end of the first outer tube comprises an internal ridge which matches the external groove for snapping. The terminal of the inner tube comprises a connecting portion. An outer wall of the inner tube comprises a first protrusion, and an inner wall of the first outer tube comprises a second protrusion engaging with the first protrusion. The hose body is clamped between the first protrusion and the second protrusion that are engaged. An inner wall of the second outer tube comprises multiple micro-protrusions.

Abstract: Embodiments of the present disclosure relate to a permission setting method and apparatus, a device, and a medium. The method includes: displaying a permission customization control, in response to a trigger operation on a permission setting object of task information, the permission setting object including a first information object and/or a second information object, the second information object being subordinate to the first information object; displaying a permission editing interface, in response to a trigger operation on the permission customization control, and receiving customization permission information via the permission editing interface; and displaying the customization permission information corresponding to the permission setting object. Therefore, a hierarchy structure based on the task information satisfies a setting need for content-based permission customization, and improves a permission management efficiency.

Abstract: A method of calibrating an antenna array in a wireless network node is disclosed, the wireless network node including a plurality of antenna branches, each of the plurality of antenna branches including a respective antenna element. The method includes repeating operations of transmitting a slice of a fountain coded sequence through the plurality of antenna branches to the respective antenna elements, and for each antenna branch of the plurality of antenna branches, selecting the transmitted slice as a feedback signal through a return path and determining a signal quality of the feedback signal, until the signal quality of the feedback signal for each antenna branch is greater than a threshold level. The method further includes performing antenna calibration based on the feedback signal for each antenna branch. Related devices, computer programs and computer program products are disclosed.

Abstract: Various embodiments of the present disclosure provide a method for multi-antenna transmission. The method which may be performed by a communication device comprises determining first correlation information in response to interference to data on a first subset of multiple antenna branches of the communication device. The first correlation information may indicate at least correlation between the data on the first subset of the multiple antenna branches and data on a second subset of the multiple antenna branches which is not affected by interference. The method further comprises correcting the data on the first subset of the multiple antenna branches, based at least in part on the first correlation information.

Abstract: A method of calibrating an antenna array in a wireless network node is disclosed, the wireless network node including a plurality of antenna branches, each of the plurality of antenna branches including a respective antenna element. The method includes repeating operations of transmitting a slice of a fountain coded sequence through the plurality of antenna branches to the respective antenna elements, and for each antenna branch of the plurality of antenna branches, selecting the transmitted slice as a feedback signal through a return path and determining a signal quality of the feedback signal, until the signal quality of the feedback signal for each antenna branch is greater than a threshold level. The method further includes performing antenna calibration based on the feedback signal for each antenna branch. Related devices, computer programs and computer program products are disclosed.

Abstract: Various embodiments of the present disclosure provide a method for multi-antenna transmission. The method which may be performed by a communication device comprises determining first correlation information in response to interference to data on a first subset of multiple antenna branches of the communication device. The first correlation information may indicate at least correlation between the data on the first subset of the multiple antenna branches and data on a second subset of the multiple antenna branches which is not affected by interference. The method further comprises correcting the data on the first subset of the multiple antenna branches, based at least in part on the first correlation information.

Abstract: Techniques for establishing a secure communication channel between a trusted portion of a system and another portion of the system and providing data over the secure communication channel are described herein. For example, a system may implement a Trusted Execution Environment (TEE) and a TEE component associated with the TEE. The TEE component may establish a secure communication channel with a Network Interface Controller (NIC) on the system, such as a smart NIC that is configured to encrypt/decrypt data and/or perform other operations. The TEE component may receive one or more cryptographic keys from a service provider and provide the one or more cryptographic keys to the NIC via the secure communication channel. The NIC may use the one or more cryptographic keys to encrypt data to send to another device, decrypt data that is received from another device, or otherwise encrypt/decrypt data.

Abstract: A mower folding-type chassis, comprising a fixing disc and at least one rotating disc rotationally connected with the fixing disc; the fixing disc is fixedly arranged at the bottom of the mower; mowing blades are respectively arranged within the shells of the fixing disc and the rotating disc; a driving device used for driving the mowing blades to rotate is arranged in the mower; when mowing a lawn, the rotating discs can be rotated and unfolded relative to the fixing disc, thereby improving the mowing efficiency, and when the mower needs to be stored or transported, the rotating discs can be rotated and folded relative to the fixing disc, thus reducing the space occupation of the mower.

Abstract: One embodiment provides a system for establishing a secure network. During operation, a server can distribute at least one symmetric encryption key among a plurality of hosts to enable the hosts to communicate securely with each other. Each host comprises at least a smart network interface card and a central processing unit (CPU) of each host computer supports remote attestation. Distributing the symmetric encryption key among the hosts can include performing a remote attestation operation to establish a trusted channel between the server and a protected region within the CPU of a respective host; and transmitting, over the trusted channel, the symmetric encryption key to the CPU of the respective host, which in turn forwards the symmetric encryption key to the smart network interface card of the respective host over a secure channel established between the protected region within the CPU and the smart network interface card.

Abstract: One embodiment provides a system for establishing a secure network. During operation, a server can distribute at least one symmetric encryption key among a plurality of hosts to enable the hosts to communicate securely with each other. Each host comprises at least a smart network interface card and a central processing unit (CPU) of each host computer supports remote attestation. Distributing the symmetric encryption key among the hosts can include performing a remote attestation operation to establish a trusted channel between the server and a protected region within the CPU of a respective host; and transmitting, over the trusted channel, the symmetric encryption key to the CPU of the respective host, which in turn forwards the symmetric encryption key to the smart network interface card of the respective host over a secure channel established between the protected region within the CPU and the smart network interface card.