Abstract: The invention provides a two-phase flow active and passive multi-level data center cabinet cooling device and method, wherein the system includes a cabinet cooling device, a condensate system, a waste heat recovery device, a liquid reservoir, a liquid pump, a gas chamber, a fluid working medium, and a corresponding pipeline. The system comprise a closed loop, the loop is filled with nitrogen to maintain a low pressure state, and the pipeline fluid is driven by the liquid pump to flow; the gas chamber maintains a relatively stable air pressure in the two-phase flow loop; the liquid reservoir is connected with the gas chamber, providing an enough gas space to make a phase change occur more easily; the cabinet cooling device can be switched between an active mode and a passive mode to minimize PUE under good heat dissipation capability.

Abstract: A reactive power-voltage control method for integrated transmission and distribution networks is provided. The reactive power-voltage control method includes: establishing a reactive power-voltage control model for a power system consisting of a transmission network and a plurality of distribution networks; performing a second order cone relaxation on a non-convex constraint of the plurality of distribution network constraints to obtain the convex-relaxed reactive power-voltage control model; solving the convex-relaxed reactive power-voltage control model to acquire control variables of the transmission network and control variables of each distribution network; and controlling the transmission network based on the control variables of the transmission network and controlling each distribution network based on the control variables of the distribution network, so as to realize coordinated control of the power system.

Abstract: A method for co-hosting in live streaming includes sending, in response to receiving a co-hosting request from a live streaming account, the co-hosting request to a target user account for co-hosting; and sending, in response to receiving co-hosting grant information from the target user account, a first live data stream and a second live data stream to a viewer account. The first live data stream corresponds to the target user account, the second live data stream corresponds to the live streaming account. The second live data stream is pushed by the live streaming account using a target live streaming tool, and the target live streaming tool is configured to push the second live data stream for the live streaming account and pull the first live data stream for the live streaming account.

Abstract: A method for co-hosting in live streaming includes sending, in response to receiving a co-hosting request from a live streaming account, the co-hosting request to a target user account for co-hosting; and sending, in response to receiving co-hosting grant information from the target user account, a first live data stream and a second live data stream to a viewer account. The first live data stream corresponds to the target user account, the second live data stream corresponds to the live streaming account. The second live data stream is pushed by the live streaming account using a target live streaming tool, and the target live streaming tool is configured to push the second live data stream for the live streaming account and pull the first live data stream for the live streaming account.

Abstract: The present application provides a live streaming method and apparatus, a device and a computer readable medium. The method includes: receiving team forming indication information, wherein the team forming indication information includes account information of at least one object in the same team in a target application; acquiring live streaming identification information of an object corresponding to the account information of the at least one object and participating in the team live stream; and sending the acquired live streaming identification information to a client used for the team live stream and a client playing a media stream of the team live stream to make the client used for the team live stream and the client playing the media stream display part of or all of the live streaming identification information.

Abstract: The present application relates to a live stream playback video generation method, device and apparatus. The method includes: obtaining target data corresponding to live stream in a live stream playing process; judging whether the live stream anchor generates a live stream playback video according to the target data; when the judgment result is that the live stream anchor can generate the live stream playback video, generating first playback data based on the live stream data generated before the reference time point, and generating second playback data based on the live stream data generated after the reference time point in real time; the reference time point is a time point at which the judgment result is obtained; after receiving a live stream playback video generation instruction, generating a live stream playback video based on the first playback data and the second playback data.

Abstract: A system upgrade assessment method based on system parameter correlation coefficients is provided. The problem that the existing system upgrade assessment method cannot accurately assess an upgraded system is solved. For such a purpose, the system upgrade assessment method comprises the following steps: acquiring first data for a plurality of parameters before system upgrade (S110); acquiring second data for the plurality of parameters after the system upgrade (S120); calculating first correlation coefficients of the first data and second correlation coefficients of the second data (S130); calculating third correlation coefficients between the first data and the corresponding second data (S140); and determining, based on the magnitudes of the first correlation coefficients, the second correlation coefficients and the third correlation coefficients, whether the system upgrade succeeds (S150).

Abstract: A system upgrade assessment method based on system parameter correlation coefficients is provided. The problem that the existing system upgrade assessment method cannot accurately assess an upgraded system is solved. For such a purpose, the system upgrade assessment method comprises the following steps: acquiring first data for a plurality of parameters before system upgrade (S110); acquiring second data for the plurality of parameters after the system upgrade (S120); calculating first correlation coefficients of the first data and second correlation coefficients of the second data (S130); calculating third correlation coefficients between the first data and the corresponding second data (S140); and determining, based on the magnitudes of the first correlation coefficients, the second correlation coefficients and the third correlation coefficients, whether the system upgrade succeeds (S150).

Abstract: A new paper composition comprising, a) from 15 wt. % to 70 wt. % a hiding composite comprising based on the total weight of the hiding composite, from 30 wt. % to 75 wt. % pigment particles and from 25 wt. % to 70 wt. % a thermoplastic polymer. The pigment particles are hydrophobically treated with the surface tension of the pigment particles being from 0.1 to 50 mN/m, and the surface tension difference between the pigment particles and the thermoplastic polymer being less than 40 mN/m; and b) from 30 wt. % to 85 wt. % a paper pulp. Process of making such a new paper composition.

Abstract: A method, non-transitory computer readable medium, and apparatus for calculating a transaction quality score of a merchant are disclosed. For example, the method analyzes fraudulent transaction data in a fraudulent transaction data table for each one of a plurality of merchants, calculates a transaction quality score for the each one of the plurality of merchants based on the fraudulent transaction data, filters the plurality of merchants having a respective transaction quality score above a threshold and transmits the plurality of merchants having the respective transaction quality score above the threshold for display.

Abstract: The present application provides audio file acquisition and update notification sending methods, devices, and systems. One audio file acquisition method disclosed herein includes: receiving an audio file update notification by an audio playing device; prompting update by the audio playing device in response to the audio file update notification; receiving an audio file acquisition instruction by the audio playing device; and acquiring an updated audio file by the audio playing device in response to the audio file acquisition instruction. The present application further discloses audio playing devices. Embodiments of the present disclosure can help improve audio file acquisition efficiency and reduce resource consumption.

Abstract: A system and method for identifying perpetrators of ATM fraud. A subscription fee is collected for defined services for collecting, processing, and analyzing facial data. Facial data is acquired from a person conducting a transaction with an automated transaction system having a camera device. The facial data is linked to a transaction identifier including at least time and location associated with the transaction. The facial data and the transaction identifier are stored in a centralized repository. Upon request from an authorized subscriber to identify the person based on the transaction identifier, because the transaction is deemed fraudulent, the facial data associated with the transaction identifier is compared to facial profiles obtained from private, public, and law enforcement databases. Potential identity matches are generated based on the facial profiles. The potential identity matches are output to the authorized subscriber for further prosecutorial and/or investigative actions.

Abstract: A new paper composition comprising, a) from 15 wt. % to 70 wt. % a hiding composite comprising based on the total weight of the hiding composite, from 30 wt. % to 75 wt. % pigment particles and from 25 wt. % to 70 wt. % a thermoplastic polymer. The pigment particles are hydrophobically treated with the surface tension of the pigment particles being from 0.1 to 50 mN/m, and the surface tension difference between the pigment particles and the thermoplastic polymer being less than 40 mN/m; and b) from 30 wt. % to 85 wt. % a paper pulp. Process of making such a new paper composition.

Abstract: A method, non-transitory computer readable medium, and apparatus for calculating a transaction quality score of a merchant are disclosed. For example, the method analyzes fraudulent transaction data in a fraudulent transaction data table for each one of a plurality of merchants, calculates a transaction quality score for the each one of the plurality of merchants based on the fraudulent transaction data, filters the plurality of merchants having a respective transaction quality score above a threshold and transmits the plurality of merchants having the respective transaction quality score above the threshold for display.

Abstract: A method, non-transitory computer readable medium, and apparatus for verifying a validity of a communication from a fraud detection service are disclosed. For example, the method receives the communication from the fraud detection service indicating that a credit card number is associated with potentially fraudulent activity, provides a personal identification to the fraud detection service via a secured connection to request a confirmation that the communication is from the fraud detection service, wherein the personal identification is used to identify the credit card number and receives the confirmation that the communication is valid and was sent from the fraud detection service based upon a verification performed by the fraud detection service that compares the credit card number to a database containing a plurality of credit card numbers that are flagged for potentially fraudulent activity.

Abstract: A graphic self-diagnostic system comprises an input device for inputting a self-diagnostic request and rendering a request of a user; a graphic self-diagnostic device, comprising a failure database module, a failure scan module and a rendering module, for diagnosing one or more parts of the equipment being diagnosed and for generating the graphic diagnostic result; and an output device for outputting the graphic diagnostic result.