Abstract: An inspection system, including: at least one ray source rotatable between at least two scanning positions around a rotation axis, and a rotation angle of at least one ray source between two adjacent scanning positions is greater than an angle of adjacent target spots of each ray source relative to the rotation axis; a detector assembly, and a conveying device configured to carry an object to be inspected. At least one ray source and the detector assembly are movable in a traveling direction relative to the conveying device, so that the object to be inspected may enter an inspection region. When at least one ray source is located at one scanning positions, at least one ray source and the detector assembly move in the traveling direction relative to the conveying device and at least one ray source emits X-rays; after moving a predetermined distance, at least one ray source rotates around the rotation axis to another scanning position.

Abstract: A method for evaluating a downhole working condition of a PDC bit includes: performing an indoor test, including performing a drilling test in different full-sized cores by using the PDC bit with different degrees of abrasion and balling under condition of given WOB and rotational speed, to acquire change characteristics of a WOB, a rotational speed, a torque, a ROP and a bit vibration of the PDC bit in different time domains; improving and perfecting an existing prediction model and evaluation method for the downhole working condition through data obtained by the test to obtain the method; reading parameters of the WOB, the rotational speed, the torque and the ROP in real time during drilling; determining the downhole working condition of the PDC bit by using the method in the improving and perfecting.

Abstract: The present disclosure provides a variable-frequency compressor with adaptive heating power control and a method for operating the same. According to an embodiment of the present disclosure, the variable-frequency compressor includes: a compression unit, for compressing a medium entering the variable-frequency compressor; a motor, including a stator and a rotor, for driving the compression unit; and a controller, configured to adaptively control a heating power of a winding of the stator according to information of the variable-frequency compressor.

Abstract: A picture processing method and apparatus, a device, and a storage medium are provided. The method includes: detecting, in response to an image editing trigger operation, a target processing part in a to-be-processed picture; determining an image region comprising the target processing part, in the to-be-processed picture; and zooming in on the image region, on an image editing interface. Hence, according to the embodiments, when an image editing operation is triggered, the target processing part on the to-be-processed picture can be quickly positioned, and be zoomed in on the image editing interface, so that a user can conveniently perform image editing on the target processing part, and the picture processing efficiency is improved to a certain extent.

Abstract: The present application provides an audio and video playing system, a playing method and a playing device. The system comprises: a display device; a directional sound output module configured to output a directional sound signal; a tracking element configured to monitor a target visual area and to monitor the target display area on the display screen; and a processor, connected with the directional sound output module and the tracking element respectively, and configured to acquire a first audio and video data to be output in the target display area, display image information of the first audio and video data in the target display area, and output sound information of the first audio and video data to the directional sound output module such that the directional sound output module output a directional sound signal towards the target visual area.

Abstract: At least one computer processor can replace visual words of an unsupervised machine learning classification model with visual objects of an image. At least two co-occurring single visual objects adjacent to each other in pixels of the image can be combined to obtain a compound visual object. The unsupervised machine learning classification model can be augmented to model the image as a mixture of subjects, where each subject is represented through placements of the visual objects in a mixture of concentric spheres centering on a mixture of intersections on a mixture of horizontal layers. At least one processor can learn latent relationships between the placements of the visual objects in a three-dimensional space depicted in the image and image semantics. Learning the latent relationships trains the unsupervised machine learning classification model to perform image subject classification through the placements of the visual objects in a new image.

Abstract: Aspects of the invention include detecting an error alert from a target computer system. In response to detecting the error alert, performance data is then retrieved from the target computer system. A gated recurrent unit (GRU) neural network is used to generate a prediction of a root cause of the error alert based on the performance data. The weights of a reset gate of the GRU neural network are adjusted based on received feedback of the prediction.

Abstract: The present disclosure relates to a static CT detection device, including: a shielding body, formed with a detection channel through which an object under detection can pass; a ray source, emitting rays for detecting the object under detection when the object under detection passes through the detection channel; and a detector, for acquiring the rays emitted by the ray source and having passed through the detection channel, wherein the shielding body is formed with an opening portion, and the opening portion extends from an inlet of the detection channel to an outlet of the detection channel.

Abstract: A system for generating a geographically-clustered routing solution includes a computer system configured to receive a plurality of orders. Each order in the plurality of orders comprises a geographic location. The plurality of orders are clustered into a plurality of clusters based on the geographic location of each order and a routing solution is generated for each of the plurality of clusters. Each routing solution is transmitted to at least one vehicle system.

Abstract: Various embodiments include an encoder for a motor. The encoder may include: a sensor module for collecting sensor data of the motor with a sensor while the motor is running; a storage module storing motor running records; and a microcontroller unit. The microcontroller is programmed to determine a running state of the motor using the sensor data, storing information about the running state into the storage module as a motor running record in response to a determination that the running state is a predefined running state, and providing at least one of the motor running records stored in the storage module via a communication interface in response to a reading request received from the communication interface.

Abstract: A lockable orthodontic appliance, comprising a main body. An arch wire groove is formed on the main body, the main body is provided with a movable accessory, the accessory comprises a traction portion and a space occupying portion, the accessory can move between an available position and an unavailable position, and during the movement, the traction portion can drive the space occupying portion to enter the arch wire groove; or a traction member and a space occupying member are provided on the main body, the traction member can move, and during the movement, the traction member drives the space occupying member to enter the arch wire groove. The orthodontic appliance may have a plurality of states, the first is a locked state, the second is a traction state, the third is a traction locked state, and the fourth is a non-locked and non-traction state.

Abstract: A semiconductor structure includes a substrate having a doped silicon substrate, a buried oxide layer, and a silicon device layer. A trench capacitor having an inner electrode and a node dielectric layer is formed in a trench of the substrate. The inner electrode and the node dielectric layer extend into the doped silicon substrate. A select transistor is disposed in the silicon device layer. An embedded contact is disposed atop the trench capacitor to electrically couple a doped region of the select transistor with the inner electrode. A first dielectric layer is disposed around the select transistor. A second dielectric layer is deposited on the first dielectric layer. A contact plug is formed in the second dielectric layer and the first dielectric layer and is in direct contact with the embedded contact. A memory stack with a MTJ element is disposed on the contact plug.

Abstract: Described embodiments generally relate to a hydrocyclone for isolating particles within a fluid. The hydrocyclone comprises an upper conical section defining at least one inlet to receive the fluid, a vortex finder extending into the upper conical section, and an overflow port fluidly connected to the vortex finder and configured to expel a portion of the fluid out of the upper conical section; and a lower conical section defining an underflow port to expel the remaining fluid out of the lower conical section, the lower conical section being fluidly connected to the upper conical section to define a single hollow volume. The shape of the hydrocyclone causes particles smaller than a predetermined size to be isolated by expelling the particles from the overflow port.

Abstract: The present disclosure relates to a preparation method of a niobium diselenide (NbSe2) film with ultra-low friction and low electrical noise under sliding electrical contact in vacuum. The method uses a direct current (DC) closed field magnetron sputtering method for preparation. Through process design of low deposition pressure and low sputtering energy, on one hand, a purity of an NbSe2 sputtered product is kept, generation of interference phases such as NbSe3 is avoided, and electrical conductivity of the sputtered NbSe2 film is greatly improved, and on the other hand, a nanocrystalline/amorphous superlattice composite structure is formed, and excellent mechanical and lubricating properties are achieved. Under sliding electrical contact in vacuum, compared with those of a common electroplated gold coating, a friction coefficient of the film is reduced to 0.02 from 0.25, a wear life is prolonged by at least 7 times, and the electrical noise is reduced by about 50%.

Abstract: Disclosed are methods, systems, and computer-readable medium for facilitating remote user airspace communication. For instance, the method may include: connecting with a user device associated with and remote from a first vehicle in a shared air traffic control sector; receiving voice communication data from at least one of the user device, a second vehicle in the shared air traffic control sector, and an air traffic control station in the shared air traffic control sector; generating analog data or digital data based on the received voice communication data; determining a recipient for the generated analog data or generated digital data in the shared air traffic control sector; transmitting the generated analog data or generated digital data to the recipient; and terminating the connection with the user device as the first vehicle leaves the shared air traffic control sector.

Abstract: Disclosed are a high-entropy carbide ceramic material and a preparation method thereof, and also a ceramic coating and its preparation method and use. The high-entropy carbide ceramic material has a chemical composition of (ZrCrTiVNb)C and includes Zr, Cr, Ti, V, and Nb, with a same mole fraction of 6-10%.

Abstract: Example data processing methods and apparatuses are disclosed. In one example data processing method, a first terminal obtains packet delay budget adjustment information, where the packet delay budget adjustment information is used to indicate an adjusted packet delay budget, a packet delay budget adjustment amount, or a packet delay budget adjustment range. The first terminal adjusts a size of a jitter buffer based on the packet delay budget adjustment information, and then buffers data based on the adjusted jitter buffer.

Abstract: The present disclosure belongs to the technical field of functional films, and in particular relates to a self-lubricating film over wide temperature ranges in vacuum and a preparation method and use thereof. The present disclosure provides a self-lubricating film over wide temperature ranges in vacuum, including: a bonding layer, a transition layer and a lubricating layer laminated in sequence, wherein the bonding layer has a chemical composition of Ti; the transition layer has a chemical composition of Ti and TiB2; the lubricating layer has a chemical composition of Ti, TiB2 and MoS2. In the present disclosure, when the self-lubricating films over wide temperature ranges in vacuum are exposed to different temperatures, different components of Ti, TiB2 and MoS2 in the films may be correspondingly excited to enrich in frictional contact areas.

Abstract: Disclosed is a method and apparatus for enabling interactive visualization of three-dimensional volumetric models. The method involves maintaining three-dimensional volumetric models represented by explicit surfaces. In accordance with an embodiment of the disclosure, the method also involves, for a current point of view, generating and displaying images of the volumetric models in a manner that clarifies internal structures by accounting for light attenuation inside the volumetric models as a function of spatial positions of the explicit surfaces. The method also involves, upon receiving user input that adjusts a display variable, repeating the generating and the displaying of the images in accordance with the display variable that has been adjusted, thereby enabling interactive visualization of the volumetric models while simultaneously clarifying the internal structures by accounting for the light attenuation inside the volumetric models.

Abstract: An orthodontic appliance, includes a main body having an archwire groove and a movable part, and further includes a fixing structure for fixing the movable part at least in the closed position. The fixing structure includes an elastic member and a movable element which are located in one of the main body or the movable part. The movable element includes at least one protruding end, which is received in another of the main body and the movable part, the movable element cooperates with the elastic member to fix the movable part at least in the closed position, and the movable element acquires a moving space by squeezing the elastic member. During the opening and closing of the movable part, the wear-resistant movable element replaces the elastic element to cause friction with the movable part, which improves the wear resistance and service life of the appliance.