Abstract: The present invention is directed towards a process for upgrading lignite comprising: prior to production pre-assess the calorific value of the coal, by selecting a relational expression between a calorific value of lignite and a degree of metamorphism, a moisture content and an ash content thereof based on a ratio of the ash content to the moisture content, pre-assess the calorific value of the coal; combining a relational expression between a production cost and the ash content and moisture content to make a cost budget; determining degrees of deashing and drying; selecting and implementing a lignite ash reduction pretreatment process; and implementing dry sorting first and then drying. The upgrading process has high sorting efficiency, high drying efficiency and low production cost, and meets the requirement for the surface moisture of the raw coal in the dry sorting operation.

Abstract: Provided is an infrared thermal emitter, which includes a first Bragg Grating layer comprising a first film and a second film stacked alternately, wherein the first film and the second film has a refractive index difference greater than 1.5; a second Bragg Grating layer including a film of silicon and a film of chromium stacked in a structure of (Si/Cr/Si)n, where n is an integer and represents a number of repeating period; and a heater layer; wherein the first Bragg Grating layer, second Bragg Grating layer and the heater layer are stacked sequentially from top on down. The infrared thermal emitters have unique advantage of greatly enhancing infrared light emissivity and significantly suppressing visible light radiation simultaneously.

Abstract: The present disclosure provides a backlight module assembly, structural adjustment method thereof and display device. The backlight module assembly includes a plastic frame, a film and an adjustment sheet. The plastic frame is presented in a box shape with an opening on the top, and has side walls and a bottom wall, and a space enclosed by the side walls and the bottom wall being a mounting groove. The film is arranged on the bottom wall and received within the mounting groove. The adjustment sheet is arranged on an inner side of the side wall of the mounting groove.

Abstract: A protection circuit of a USB device can interrupt and restore the electrical coupling between a first interface and a second interface of the USB device as a user requires. A controlling module of the protection circuit outputs a first low-level signal or a second high-level signal according to a user operation, a switching module thereby connects or disconnects the first interface to or from the second interface according to the signal received. A USB device is also disclosed.

Abstract: This application provides a key configuration method. A session management network element receives a request for end-to-end communication and obtains a security policy, where the security policy is determined based on at least one of: a user security requirement that is of the user equipment and that is preconfigured on a home subscriber server, a service security requirement from the user equipment, a security capability requirement supported by the user equipment, a security capability requirement from a carrier network, and a security requirement of a device on the other end of the end-to-end communication. The session management network element obtains a protection key used for protecting the end-to-end communication. The session management network element sends the security policy to the devices on two ends of the end-to-end communication.

Abstract: In an approach to quarantining source code to prevent confidential information exposure, one or more computer processors store a pushed codebase associated with a user to an isolated quarantine area, wherein access to the quarantine area is restricted to the user through user interface code visibility enforcement and protocol code visibility enforcement. The one or more computer processors dynamically adjust a timeout period based on codebase complexity, user preferences, associated dependencies, codebase size, minimum execution temporal period for one or more scans, and system specifications. The one or more computer processors responsive to identifying one or more instances of confidential information, perform one or more remedial actions.

Abstract: A computer-implemented method, system and computer program product for identifying implicit dependencies between code artifacts. Co-defect association rules between code artifacts are generated, where such co-defect association rules include a prediction of how likely there will be a defect in a code artifact when there is a defect in an associated code artifact. After detecting a defect in a first code artifact, the co-defect association rules are reviewed to identify any code artifacts associated with the first code artifact. If there is a code artifact associated with the first code artifact, and if the probability of the associated code artifact being defected when the first code artifact is defected exceeds a threshold value, then a recommendation is made to the user to review not only the first code artifact that was defected but also its associated code artifact for a potential defect.

Abstract: Adjustments to be made to a system for authenticating users may be made by performing the following operations: obtaining a stochastic model of the system, wherein the stochastic model includes two or more classes of requests; obtaining a set of preferences for handling authentication requests and a set of operational parameter values; determining, based at least in part on the stochastic model and the set of operational parameter values, that adjusting an authentication scheme will improve a probable degree to which the authentication system will meet the set of preferences; responsive to the determination that adjusting the authentication scheme will improve the probable degree to which the system for authenticating users will meet the set of preferences, adjusting the authentication scheme of the system for authenticating users; and performing an authentication of a user based on the adjusted authentication scheme.

Abstract: Embodiments of this application provide a method for making recommendations to a user and an apparatus, a computing device, and a storage medium. The method includes obtaining user attribute information, reading attribute information, reading history information, and candidate items; performing intra-group information fusion on the reading attribute information according to preset groupings to obtain reading feature information; obtaining a reading history weight according to the reading history information; obtaining history feature information according to the reading history weight and the reading history information; obtaining user feature information according to the user attribute information, the reading feature information, and the history feature information; and selecting a recommendation item from the candidate items according to the user feature information.

Abstract: A video recommendation method is provided, including: inputting a video to a first feature extraction network, performing feature extraction on at least one consecutive video frame in the video, and outputting a video feature of the video; inputting user data of a user to a second feature extraction network, performing feature extraction on the discrete user data, and outputting a user feature of the user; performing feature fusion based on the video feature and the user feature, and obtaining a recommendation probability of recommending the video to the user; and determining, according to the recommendation probability, whether to recommend the video to the user.

Abstract: Embodiments of the present disclosure provide a pressurized two-product dense-medium separation process for oil shale, and belongs to the field of oil shale industry, in particular to the processing and utilization of oil shale. This process includes: pre-screening a raw oil shale ore through a 25 mm screen; crushing an oversize product, mixing with an undersize product, and separating by a pressurized two-product dense-medium cyclone; and subjecting an underflow and an overflow of the pressurized two-product dense-medium cyclone to dewatering and medium draining respectively to obtain a concentrate and a tailing. The present disclosure has a simple process flow, high separation efficiency and low energy consumption and can reduce the cost of oil refining and achieve better economic benefits.

Abstract: A diaphragm structure is used for an audio signal output device. The diaphragm structure includes a film substrate, a polymer fiber structure and a thin film metallic glass. The film substrate includes a first surface and a second surface opposite to the first surface. The polymer fiber structure is combined with the first surface of the film substrate. The thin film metallic glass is formed on at least a part of the second surface of the film substrate.

Abstract: A low specific on-resistance (Ron,sp) power semiconductor device includes a power device and a transient voltage suppressor (TVS); wherein the power device comprises a gate electrode, a drain electrode, a bulk electrode, a source electrode and a parasitic body diode, the bulk electrode and the source electrode are shorted, the TVS comprises an anode electrode and a cathode electrode, the drain electrode of the power device and the anode electrode of the TVS are connected by a first metal to form a high-voltage terminal electrode, the source electrode of the power device and the cathode electrode of the TVS are connected by a second metal to form a low-voltage terminal electrode.

Abstract: A security implementation method includes obtaining, by a first device, a security policy of a session and at least one key, and sending, by the first device, protected data to a second device, where the protected data is obtained by protecting security of session data of the session using the at least one key based on the security policy of the session, and the second device is configured to restore the protected data using the at least one key based on the security policy to obtain the session data, where when the first device is a terminal device, the second device is an access network node or a user plane node, or when the first device is an access network node or a user plane node, the second device is a terminal device.

Abstract: An object recognition device includes a memory, a processor and a computer program stored in the memory and executed by the processor. When the computer program is executed by the processor, the processor implements the following steps: extracting object recognition feature vectors based on at least one frame image of the video on the first tracking target; matching the extracted object recognition feature vectors with object feature vectors of registered objects in a registration object library, the registration object library being established based on pre-learning of the object feature vectors in images of the registered objects; and taking one of the registered objects as a recognition result if the extracted object recognition feature vectors match with the object feature vectors of the one of the registered objects.

Abstract: Embodiments of the present disclosure disclose a network roaming protection method and related device. The method includes: receiving, by a visited session management device, a first session establishment request that includes a first security requirement; obtaining, by the visited session management device, a target security policy, where the target security policy is obtained by processing the first security requirement set and a second security requirement set using a preset rule; and sending the target security policy to the UE instructing the UE to generate a target shared key based on a reference shared key and according to a rule defined by the target security policy, where the target shared key is used to protect secure end-to-end data transmission between the UE and the visited gateway.

Abstract: A parallel control method and a parallel control system for single-phase inverters and an inverter. Acquiring an output voltage and an output current of each of the single-phase inverters; transforming a voltage and a current in static abc coordinates into dq coordinates by reconstruction and coordinate transformation so as to realize decoupling of the voltage and the current; transforming an output voltage command value of a current loop in dq coordinates into abc coordinates by coordinate transformation; and modulating and generating modulation waves according to an output voltage command value in abc coordinates to control a switching of a power device.

Abstract: An anchor key generation method, device, and system, where the method includes generating, by a unified data management network element (UDM), an intermediate key based on a cipher key (CK), an integrity key (IK), and indication information regarding an operator; sending, by the UDM, the intermediate key to an authentication server function (AUSF); receiving, by the AUSF, the intermediate key; generating, by the AUSF, an anchor key based on the intermediate key; sending, by the AUSF, the anchor key to a security anchor function (SEAF); and generating, by the SEAF, a key (Kamf) based on the anchor key, where the Kamf is used to derive a 3rd Generation Partnership Project (3GPP) key.