Abstract: A benzotriazole organic compound, a preparation method thereof, and use thereof. The benzotriazole organic compound has a structure represented by formula (1): wherein each Ar independently includes a substituted or unsubstituted aryl, or a substituted or unsubstituted heteroaryl; R1 and R2 are each independently selected from a substituted or unsubstituted alkyl group, or a substituted or unsubstituted alkoxy group; R3 and R4 are each independently selected from a halogen, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkylthio group; and R5 is selected from a substituted or unsubstituted alkyl group.

Abstract: A photovoltaic module and an encapsulation method thereof. The photovoltaic module includes a photovoltaic main body and an encapsulation assembly. The photovoltaic main body includes a perovskite solar cell layer. The encapsulation assembly includes a first substrate, a second substrate, a first encapsulation portion, and a second encapsulation portion. The first substrate is located on a side of the photovoltaic main body along a first direction. The second substrate is located on another side of the photovoltaic main body along the first direction. The first encapsulation portion is disposed around the photovoltaic main body. The first encapsulation portion is connected to and located between the first substrate and the second substrate. The second encapsulation portion is located on a side of the first encapsulation portion away from the photovoltaic main body.

Abstract: A voltage regulation method for a multi-converter parallel connection system is provided. The multi-converter parallel connection system includes N converters. Alternating-current sides of the N converters are connected to an alternating-current bus. N is an integer greater than or equal to 2. M converters among the N converters are switched from a current-source operation mode to a voltage-source operation mode to form an alternating-current bus voltage, when the N converters are disconnected from a power grid or the power grid fails. M is an integer less than or equal to N. Remaining N-M converters among the N converters are switched from the current-source operation mode to the voltage-source operation mode after the alternating-current bus voltage is formed.

Abstract: A CBTC-based interstation remote train door-opening control method, a system, a device, and a storage medium. The method comprises: a central operator interacts with an ATS sub-system via an HMI, the ATS sub-system receives an instruction from the central operator and issues a remote interstation door-opening instruction; and after receiving the instruction and according to current-state information of a train, an onboard controller performs train door-opening control, comprising: if the train has stopped completely and the current positioning of the train is located at an evacuation platform, the onboard controller authorizes the opening of train doors on the evacuation platform side; and if the train has not stopped completely, or if the train has stopped completely but the current positioning of the train is not located at an evacuation platform, determining that the train does not meet remote door-opening conditions and providing feedback to the central operator.

Abstract: A flow-coating apparatus is configured to flow-coat a member to be flow-coated with an insulation layer, where the member to be flow-coated includes a first surface and an outer peripheral surface surrounding a periphery of the first surface, the first surface being perpendicular to a vertical direction. The flow-coating apparatus includes a first flow-coating mechanism and a second flow-coating mechanism, where a flow-coating opening of the first flow-coating mechanism faces the first surface and is configured to flow-coat the first surface with the insulation layer; and a flow-coating opening of the second flow-coating mechanism faces the outer peripheral surface and is configured to flow-coat the outer peripheral surface with the insulation layer.

Abstract: A CBTC system based on interval protection and heterogeneous redundancy, the system comprising a communication subsystem DCS, and an onboard ATP subsystem MVTP and a trackside ATP interval protection subsystem MWSP, both of which communicate with the communication subsystem DCS, wherein the onboard ATP subsystem MVTP receives movement authorization information from the trackside ATP interval protection subsystem MWSP, and when movement authorization information is unavailable, receives target distance or speed code information to protect train operation safety; and the trackside ATP interval protection subsystem MWSP automatically identifies and uses a corresponding block mode on the basis of information that is sent by the onboard ATP subsystem MVTP, uses the corresponding block mode to perform movement authorization and target distance or speed code calculation, and sends the calculation result to a corresponding train.

Abstract: The present invention provides a magnet mount for securely holding a firearm. The magnet mount includes a top mounting plate, a trigger shield, and one or more magnets affixed to the top mounting plate. One or two trigger shields are extended downwardly from the top mounting plate along one or both sides of the firearm and configured for blocking at least 50% of a trigger accessing area of the firearm, to prevent a finger from accessing & touching the trigger and causing accidental discharge. Also provided is a method of securely holding a firearm using the magnet mount.

Abstract: The present disclosure relates to a rail transit signal system with multi-network integration, including: a wayside train control subsystem for simultaneously supporting mixed tracking operation of a China train control system (CTCS)-based national railway train and a communication based train control (CBTC)-based urban rail transit train; a compatible carborne subsystem for realizing cross-line operation of a national railway line network, an intercity railway network, a municipal railway network, and an urban rail transit network; a networked intelligent dispatching subsystem for realizing intelligent dispatching management of rail transit line networks and cooperation of line network operation plans between different rail transit line networks; an interlocking subsystem being respectively communicatively connected to and interacting with the wayside train control subsystem, the compatible carborne subsystem, and the networked intelligent dispatching subsystem; and a wireless train-ground communication subs

Abstract: A power distribution system, a power distribution method and a charging pile are disclosed. The power distribution system includes a first annular structure, a second annular structure, several power modules and M output terminals. The first annular structure includes M first relay groups connected end to end in a ring, with a first connector set between every two adjacent first relay groups. The second annular structure includes M second relay groups connected end to end in a ring, with a second connector set between every two adjacent second relay groups. Several power modules are distributed to connect with the first connectors and second connectors. Among the M output terminals, one output terminal corresponds to and is directly connected with one first connector and one second connector, and each output terminal is at least directly connected to one power module.

Abstract: The present invention relates to a safety check method and device for coupling of multiple train units in rail transit, and medium, the method including: determining train formation information to obtain the length, weight and traction braking characteristics of the whole train, so as to automatically protect the running of the train on a route and realize automatic driving. Compared with the prior art, the present invention can detect the coupling states of more than 2 marshalled trains.

Abstract: Some embodiments improve the security of service principals, service accounts, and other application identity accounts by detecting compromise of account credentials. Application identity accounts provide computational services with access to resources, as opposed to human identity accounts which operate on behalf of a particular person. Authentication attempt access data is submitted to a machine learning model which is trained specifically to detect application identity account anomalies. Heuristic rules are applied to the anomaly detection result to reduce false positives, yielding a compromise assessment suitable for access control mechanism usage. Embodiments reflect differences between application identity accounts and human identity accounts, in order to avoid inadvertent service interruptions, improve compromise detection for application identity accounts, and facilitate compromise containment and recovery efforts by focusing on credentials individually.

Abstract: A voltage regulation method for a multi-converter parallel connection system is provided. The multi-converter parallel connection system includes N converters. Alternating-current sides of the N converters are connected to an alternating-current bus. N is an integer greater than or equal to 2. M converters among the N converters are switched from a current-source operation mode to a voltage-source operation mode to form an alternating-current bus voltage, when the N converters are disconnected from a power grid or the power grid fails. M is an integer less than or equal to N. Remaining N-M converters among the N converters are switched from the current-source operation mode to the voltage-source operation mode after the alternating-current bus voltage is formed.

Abstract: A welding structure, comprising: a first cover plate (10), a second cover plate (20), web plates (30), and rib plates (40). The first cover plate (10) and the second cover plate (20) are arranged at an interval. Multiple web plates (30) are arranged at intervals in a first direction, and are insertingly fitted to the first cover plate (10) and the second cover plate (20), respectively. Multiple rib plates (40) are arranged at intervals in a second direction, and are insertingly fitted to the first cover plate (10) and the second cover plate (20), respectively. The first direction and the second direction are perpendicular to each other. The web plates (30) and the rib plates (40) are insertingly fitted to each other. According to the welding structure, upper and lower cover plates of a box-shaped structure are insertingly connected and interlocked to form a stable closed box-shaped structure, so that the rigidity of the structure is improved. Also provided are a welding device and a welding method.

Abstract: The present invention provides a magnet mount for securely holding a firearm. The magnet mount includes a mounting plate, one or more magnets affixed to the mounting plate, and a barrel insert that is substantially in parallel with the surface of the mounting plate. The magnets are configured for providing a holding power to support at least a portion of the weight of the firearm. The barrel insert can be inserted into the barrel of the firearm and stabilizes the firearm. Also provided is a method of securely holding a firearm using the magnet mount.

Abstract: The present invention belongs to the pharmaceutical field, and discloses an anti-ovarian cancer pharmaceutical composition and an action target thereof. The anti-tumor pharmaceutical composition includes a Curcuma zedoaria extract and an Astragalus membranaceus extract, which synergistically enhance the efficacy by combining calycosin and bisdemethoxycurcumin to reduce the pharmaceutical dosage, minimize side effects, and save costs. An MCM2 gene, as an action target of the anti-ovarian cancer pharmaceutical composition, has been discovered. This gene has a significant impact on the proliferation, migration, and invasion abilities of ovarian cancer, providing guidance for the development and screening of a drug for preventing or treating ovarian cancer.

Abstract: A trained machine learning model distinguishes between human-driven accounts and machine-driven accounts by performing anomaly detection based on sign-in data and optionally also based on directory data. This machine versus human distinction supports security improvements that apply security controls and other risk management tools and techniques which are specifically tailored to the kind of account being secured. Formulation heuristics can improve account classification accuracy by supplementing a machine learning model anomaly detection result, e.g., based on directory information, kind of IP address, kind of authentication, or various sign-in source characteristics. Machine-driven accounts masquerading as human-driven may be identified as machine-driven. Reviewed classifications may serve as feedback to improve the model's accuracy. A precursor machine learning model may generate training data for training a production account classification machine learning model.

Abstract: The present invention provides a magnet mount for securely holding a firearm. The magnet mount includes a side mounting plate, one or more magnets are affixed to the side mounting plate, and a firearm holder. The firearm includes (a) a firearm seat, (b) a connector extending upwardly from the firearm seat and connecting to the side mounting plate, and (c) a trigger shield extending upwardly from the firearm seat. The trigger shield is configured for blocking at least 50% of a trigger accessing area of the firearm to prevent accidental discharge. Also provided is a method of securely holding a firearm using the magnet mount.

Abstract: A foldable table includes a support assembly, a tabletop assembly, a rotating assembly and a buffer member. The tabletop assembly is rotatably connected to the support assembly through the rotating assembly and is rotatable between a use position and a storage position. One end of the buffer member is connected to the support assembly, and the other end of the buffer member is connected to the tabletop assembly. When the tabletop assembly rotates from the use position to the storage position, the buffer member generates a resistance opposite to a rotation direction of the tabletop assembly, and a magnitude of the resistance is less than a force driving the rotation of the tabletop assembly. Through the arrangement of the above structure, when folding the foldable table of the present invention, it can not only ensure the integrity of its own structure, but also prevent accidental injury to the user.

Abstract: Methods, systems, apparatuses, and computer-readable storage mediums described herein are configured to detect anomalous post-authentication behavior/state change(s) with respect to a workload identity. For example, audit logs that specify actions performed with respect to the workload identity of a platform-based identity service, a causing state change(s), while another identity is authenticated with the platform-based identity service, are analyzed. The audit log(s) are analyzed via a model for anomaly prediction based on actions. The model generates an anomaly score indicating a probability whether a particular sequence of the actions is indicative of anomalous behavior/state change(s). A determination is made that an anomalous behavior has occurred based on the anomaly score, and when anomalous behavior has occurred, a mitigation action may be performed that mitigates the anomalous behavior.