Abstract: The present invention relates to the technical field of mine fire prevention and extinguishing, in particular to a liquid nitrogen direct injection and low-temperature foaming intelligent filling system based on mine fire area characteristics and an application method, comprising a liquid nitrogen storage tank, a liquid nitrogen direct injection system and a low-temperature foaming system, wherein the liquid nitrogen storage tank communicates with a liquid nitrogen pressurizing device through a main pipeline; a temperature control unit is arranged on the main pipeline; and the liquid nitrogen pressurizing device is connected with the liquid nitrogen direct injection system and the low-temperature foaming system, respectively, liquid nitrogen is directly injected into a foam liquid, to prepare a low-temperature foam type fire preventing and extinguishing material by means of forced convection, membrane boiling, explosion boiling and nucleate boiling between the liquid nitrogen and water.

Abstract: Methods for detecting and extracting plastic contaminants within a water sample, which involve introducing the water sample to a hydrophobic deep eutectic solvent, are provided.

Abstract: This application provides a communication method and a communication apparatus. The communication method includes: a network device sends downlink control information (DCI) to a terminal device, where the DCI indicates a first time domain resource in a first slot, the first time domain resource includes M time domain sub-resources, at least two adjacent time domain sub-resources in the M time domain sub-resources are at an interval of a first time period, and M is an integer greater than or equal to 2. The network device sends a physical downlink shared channel (PDSCH) on the first time domain resource. This method is used in a harmonized communication and sensing system.

Abstract: The present disclosure relates to a data processing method and apparatus, and a storage medium. The method includes: inputting input data into a neural network model to obtain feature data currently output by a network layer in the neural network model (S100); determining, according to transformation parameters of the neural network model, a normalization mode matched with the feature data (S200), wherein the transformation parameters are used for adjusting a statistical range of statistics of the feature data, and the statistical range is used for representing the normalization mode; and performing normalization processing on the feature data according to the determined normalization mode to obtain normalized feature data (S300). According to embodiments of the present disclosure, the purpose of autonomously learning a matched normalization mode for each normalization layer of the neural network model can be implemented without human intervention.

Abstract: An image processing method and apparatus, and a storage medium are provided. The method includes: obtaining a first feature map of an image to be processed (S101); determining a final weight vector of the first feature map (S102); determining a target normalization mode corresponding to the first feature map from a preset normalization set is determined according to the final weight vector (S103); and normalizing the first feature map by means of the target normalization mode to obtain a second feature map (S104).

Abstract: The disclosure discloses an ultra-dry three-phase flue gas foam for oil-gas fields and preparation method thereof. The ultra-dry three-phase flue gas foam is produced by a gas phase, a liquid phase and a solid phase; the gas phase is a flue gas; the foaming solution is an aqueous solution of a surfactant, a pH adjuster, and an inorganic salt; the solid phase is a composite of fly ash and nano silica; the foam quality is 90%-99%. The solid phase foam stabilizer is a compounded system of fly ash particles and nano silica particles, which is not only low in cost but also can form a stable solid particle adsorption layer on the foam film. Thus the instability of the foam such as film rupture, gas diffusion and bubble aggregation can be greatly reduced, and the stability of the foam can be effectively improved.

Abstract: The disclosure discloses an ultra-dry three-phase flue gas foam for oil-gas fields and preparation method thereof. The ultra-dry three-phase flue gas foam is produced by a gas phase, a liquid phase and a solid phase; the gas phase is a flue gas; the foaming solution is an aqueous solution of a surfactant, a pH adjuster, and an inorganic salt; the solid phase is a composite of fly ash and nano silica; the foam quality is 90%-99%. The solid phase foam stabilizer is a compounded system of fly ash particles and nano silica particles, which is not only low in cost but also can form a stable solid particle adsorption layer on the foam film. Thus the instability of the foam such as film rupture, gas diffusion and bubble aggregation can be greatly reduced, and the stability of the foam can be effectively improved.

Abstract: In one embodiment, a method includes sending a request to a computing server from a mobile-client system for a multimedia object. The mobile-client system receives, from the computing server, a query in response to the request for SIM-card information of the mobile-client system. The mobile-client system executes an application in response to the query to access a SIM card of the mobile-client system and retrieve SIM-card information. The mobile-client system sends the retrieved SIM-card information to the computing server. The mobile-client system receives a multimedia object from the computing server, the multimedia object being customized based on the retrieved SIM-card information.

Abstract: In one embodiment, a method includes sending a request to a computing server from a mobile-client system for a multimedia object. The mobile-client system receives, from the computing server, a query in response to the request for SIM-card information of the mobile-client system. The mobile-client system executes an application in response to the query to access a SIM card of the mobile-client system and retrieve SIM-card information. The mobile-client system sends the retrieved SIM-card information to the computing server. The mobile-client system receives a multimedia object from the computing server, the multimedia object being customized based on the retrieved SIM-card information.

Abstract: In one embodiment, a method includes receiving a request for a multimedia object from a mobile-client system of a first user, wherein the request comprises http-header information of the mobile-client system, determining one or more attributes of the mobile-client system based at least on a social-graph information associated with the first user and the http-header information, wherein determining the one or more attributes comprises calculating a probability score the mobile-client system has the one or more attributes by comparing the social-graph information associated with the first user and the http-header information with a database of a social-networking system, and sending the multimedia object to the mobile-client system in response to the request, the multimedia object being customized based on at least the determined one or more attributes of the mobile-client system.

Abstract: In one embodiment, a method includes receiving a request for a multimedia object from a mobile-client system of a first user, wherein the request comprises http-header information of the mobile-client system, determining one or more attributes of the mobile-client system based at least on a social-graph information associated with the first user and the http-header information, wherein determining the one or more attributes comprises calculating a probability score the mobile-client system has the one or more attributes by comparing the social-graph information associated with the first user and the http-header information with a database of a social-networking system, and sending the multimedia object to the mobile-client system in response to the request, the multimedia object being customized based on at least the determined one or more attributes of the mobile-client system.

Abstract: In one embodiment, a method includes receiving a request for a content object from a mobile-client system of a user, accessing SIM-card information associated with the mobile-client system the user, determining a carrier based at least on the SIM-card information, and sending the webpage to the mobile-client system in response to the request, where the content object has been customized based on the determined carrier of the mobile-client system.

Abstract: In one embodiment, a method includes receiving a request for a content object from a mobile-client system of a user, accessing SIM-card information associated with the mobile-client system the user, determining a carrier based at least on the SIM-card information, and sending the webpage to the mobile-client system in response to the request, where the content object has been customized based on the determined carrier of the mobile-client system.