Abstract: Embodiments of this application disclose a software integrity protection method and apparatus. A first device obtains a first software package, where the first software package includes a first signature made by a first party for a second software package by using a first private key; and the first device performs a signing operation on the first software package by using a second private key, to obtain a third software package including a second signature, where the first private key is controlled by the first party, and the second private key is controlled by a second party. The first device sends the third software package to a second device. The second device verifies the first signature and the second signature in the third software package respectively based on a first public key and a second public key that are prestored, to obtain a verification result.

Abstract: Systems and methods for improving output stability of an RFPA. The systems may obtain an initial radio frequency signal to be amplified by the RFPA. The systems may also generate a compensated radio frequency signal by performing, based on a preset compensation rule and a set of compensation parameters, a gain compensation operation for the initial radio frequency signal. The set of compensation parameters may include a supply voltage of the RFPA and a transistor junction temperature of the RFPA. The systems may further generate, by performing a non-linear correction operation on the compensated radio frequency signal, a corrected radio frequency signal, which is transmitted to the RFPA.

Abstract: The present invention provides a federated large model adaptive learning system. Based on the combination of multiobjective optimization and incremental learning, multiple optimization indexes are constructed, and adaptive mini model incremental learning is designed. A gradient scaling method of mini models is proposed for data privacy protection under federated learning, to make full use of gradient information. A correlation between the generalization ability and sampling data is revealed to propose a generalization ability evaluation function. With respect to the real problems of performance degradation and fault faced by industrial equipment during operation, multiple optimization objectives are designed in combination with the generalization ability evaluation function, and the models are updated and repaired adaptively through multiobjective evolutionary learning, to improve the usability of large models in real industrial scenarios.

Abstract: The present application relates to a pyrazole-substituted cyclopentanol ester derivative and use thereof, and in particular to a compound represented by formula (I), an isomer thereof, or a pharmaceutically acceptable salt thereof.

Abstract: A coordinated fueling system satisfying thousand-second pulsed plasma discharge, including a gas puffing system, a supersonic molecular beam injection system, an ice pellet injection system, a fusion device, a gas puffing port of a wave antenna, a divertor and a plasma. The gas puffing system, the supersonic molecular beam injection system and the ice pellet injection system are provided at different positions of the fusion device to perform deuterium-tritium plasma discharge in a magnetic confinement fusion device. Through coordination of different moments, positions and fueling methods in plasma establishment and maintenance stages, of the stable thousand-second density control of the fusion device, boundary parameters adjustment of the plasma required for wave coupling and effective control of a heat flux of the divertor can be satisfied. A coordinated fueling method is also provided.

Abstract: A HHT-based voltage quality disturbance detection method, including: obtaining frequency spectrum information of an original voltage signal, and determining whether the original voltage signal is a closely spaced mode signal; based on the frequency spectrum information, performing a singular value decomposition on the original voltage signal and performing a reconstruction to obtain a reconstructed voltage signal with an interference signal removed; if the original voltage signal is the closely spaced mode signal, performing a frequency modulation on the reconstructed voltage signal to obtain a frequency-modulated signal; adding white noise to the reconstructed voltage signal or the frequency-modulated signal, and then performing an empirical mode decomposition; and performing a Hilbert transform on each intrinsic mode function obtained by the empirical mode decomposition to obtain an amplitude and frequency information of a corresponding intrinsic mode function.

Abstract: A method for preventing cracking of nickel-based superalloy fabricated by selective laser melting (SLM) belongs to the field of additive manufacturing (AM). The method of preparing an as-built part with a high density, no crack defects, and good mechanical properties includes: reducing the content of elements Zr and B forming low melting point phase in a nickel-based superalloy, adjusting the total content of Al and Ti in the alloy to 4.5 wt % or below, and combining with the control of special SLM process parameters. The new method has the advantages of a reasonable component design, a simple preparation process, and good performance of the as-built part, and therefore is suitable for large-scale application.

Abstract: The present disclosure belongs to the field of communications and more particularly relates to a decentralized trusted access method for a cellular base station. The method includes: uploading registration information to a blockchain network to add the cellular base station as a member to the blockchain network; uploading a master information block to the blockchain network, receiving block identification information from the blockchain network; broadcasting the master information block and the block identification information to cellular users within the coverage area; receiving an access request from the cellular user, and in response to the access request, performing uplink synchronization with the cellular user issuing the access request based on a random access procedure.

Abstract: Organic polymer of the structure (AmBn)-(C)x in which A is a polycarboxylic acid with two or more carboxylic groups, B is polyamine with two or more amine groups, m?1, n?1 and x=2-6; C has the structure F(D)y in which F is a urethane, amide and/or ester functional group, D is a C2 to C18 moiety with at least one primary, secondary and/or tertiary hydroxyl group(s) and y=1-6, characterized in that AmBn comprises 3 or more alkylene oxide units and 1 or more ethylene oxide units.

Abstract: The embodiments of the present disclosure provide a method and device for controlling a high-voltage generator, the method includes: obtaining a current output voltage and a target output voltage of the high voltage generator; determining an outer loop control parameter based on the current output voltage and the target output voltage; obtaining one or more internal physical parameters of the high voltage generator; determining one or more inner loop control parameters based on the one or more internal physical parameters and the outer loop control parameter; and determining a closed loop control parameter based on the one or more inner loop control parameters to control the high voltage generator.

Abstract: A lifting and lowering rod device with a water outlet terminal includes: a fixed portion configured to be connected to a wall, a lifting and lowering rod assembly connected to the fixed portion, and a water inflow passage configured to be in communication with an external water source; wherein the water outlet terminal is disposed on the lifting and lowering rod assembly, and the water outlet terminal is in communication with the water inflow passage; and wherein the fixed portion is positioned within the lifting and lowering rod assembly when the lifting and lowering rod assembly slides up and down.

Abstract: This application discloses a software loading method, applied to a network device on which software is deployed. In the method, a software version identifier is indicated by using a version file, and when loading software, the network device compares a version identifier of to-be-loaded software with the version identifier in the version file, to determine whether a version of current to-be-loaded software is a secure version. This implements protection of a software loading process.

Abstract: A method for preparing a nano spherical oxide dispersion strengthening phase using a micron oxide is proposed for the first time. First, a micron oxide is used as a raw material to prepare a nano oxide with a completely amorphous structure/matrix alloy composite powder by mechanical ball milling in stages. In the first stage, ball milling is performed, causing the oxide to break and transform in structure, and achieving nano-sizing and completely amorphization, to prepare a composite powder with a completely amorphous structure nano oxide uniformly distributed in the matrix alloy powder; and in the second stage, the composite powder obtained in the first stage and the remaining matrix alloy powder are uniformly mixed by ball milling. Then, the uniformly mixed powder is sequentially subjected to hot forming, hot rolling, and heat treatment, to obtain a nano spherical oxide dispersion strengthened alloy.

Abstract: Sealing bodies comprising a first body having a top surface and a bottom surface defining a thickness thereof. An inlet conduit and an outlet conduit are in fluid communication with one or more of the top surface, the bottom surface, or a top channel formed in the top surface or a bottom channel formed in the bottom surface.

Abstract: A centrifugal fan for a heating, ventilation, air conditioning, and refrigeration (HVACR) system is disclosed. The centrifugal fan includes a volute housing having an inner surface and a curved inlet shroud. The volute housing defines an air outlet. The curved inlet shroud defines an air inlet. The air inlet has an inlet airflow cross-sectional area that lies substantially perpendicular to an outlet airflow cross-sectional area of the air outlet. The centrifugal fan also includes an impeller mounted for rotation about a rotational axis within the volute housing. The impeller has a plurality of fan blades. The plurality of fan blades has an outer surface. The centrifugal fan further includes a light source. The inner surface of the volute housing and the outer surface of the plurality of fan blades includes a photocatalyst layer. The light source is configured to emit light on the photocatalyst layer.

Abstract: A two-component waterborne coating system includes: a first component including an acid-functional polymer having an acid value of at least 100, based on total resin solids, dispersed in an aqueous medium; and a second component separate from the first component. The second component includes an epoxy-functional compound. A method of preparing a two-component waterborne coating system and two-component waterborne coating system kit are also described herein.

Abstract: A coordinated fueling system satisfying thousand-second pulsed plasma discharge, including a gas puffing system, a supersonic molecular beam injection system, an ice pellet injection system, a fusion device, a gas puffing port of a wave antenna, a divertor and a plasma. The gas puffing system, the supersonic molecular beam injection system and the ice pellet injection system are provided at different positions of the fusion device to perform deuterium-tritium plasma discharge in a magnetic confinement fusion device. Through coordination of different moments, positions and fueling methods in plasma establishment and maintenance stages, of the stable thousand-second density control of the fusion device, boundary parameters adjustment of the plasma required for wave coupling and effective control of a heat flux of the divertor can be satisfied. A coordinated fueling method is also provided.

Abstract: A lifting and lowering rod device with a water outlet terminal comprises one or more fixed portions configured to be connected to a wall, a lifting and lowering rod assembly connected to the one or more fixed portions, and a water inflow passage configured to be in communication with an external water source. The water outlet terminal is disposed on the lifting and lowering rod assembly, and the water outlet terminal is in communication with the water inflow passage.

Abstract: This application discloses a remote attestation method, apparatus, device, and system, and a readable storage medium. The method includes: A first network element device having a route reflection function sends, to a second network element device through a BGP connection, a first BGP packet used to query measurement information of the second network element device. A BGP connection for route reflection is established between the first network element device and the second network element device. The first network element device receives, through the BGP connection, a second BGP packet sent by the second network element device, and parses the second BGP packet to obtain the measurement information carried in the second BGP packet. The first network element device compares the measurement information and a remote attestation baseline file, to obtain a remote attestation result.

Abstract: In accordance with an embodiment, a network device includes a chip including a hardware encryption and decryption circuit and a one-time programmable (OTP) storage area; and a receiver configured to receive a to-be-decrypted file, where the to-be-decrypted file comprises a ciphertext.