Abstract: Disclosed are target for screening anti-tumor drug, application use thereof and screening method therefor. Disclosed are a target for screening a drug for treating and/or preventing tumors, the target for screening the drug for treating and/or preventing tumors comprise selenoprotein; and a target for screening a drug for preventing tumor metastasis, the target for screening the drug for preventing the tumor metastasis comprising selenoprotein. Also disclosed is a method for screening a drug for treating and/or preventing tumors or a drug for preventing tumor metastasis, the method comprising: interacting a candidate drug with the selenoprotein; and screening the drug for treating and/or preventing tumors or the drug for preventing tumor metastasis according to an affinity between the candidate drug and the selenoprotein; and the candidate drug with a high affinity with the selenoprotein is taken as a candidate primarily screened drug.

Abstract: The present invention relates to the technical field of catalyst preparation, disclosing a preparation method and application of a coated vanadium-tungsten-titanium oxide monolithic SCR catalyst. The method includes the steps of mixing a vanadium oxide precursor, a tungsten oxide precursor, titanium dioxide, an inorganic adhesive, an organic adhesive and a macromolecular surfactant with deionized water and stirring them to obtain a thick liquid; adding a pH adjuster to the thick liquid to make its pH 1.5-4.5; impregnating a cordierite honeycomb carrier in the thick liquid to obtain a preliminarily-impregnated catalyst and dried and calcined the preliminarily-impregnated catalyst to obtain a finished catalyst. The method has advantages such as simple operation, easy repetition and short time-consuming, so it can be applied to exhaust gas post-treatment of a marine diesel engine, and provide a good choice for catalysts used to denitrify medium and high temperature exhausted gas from marine engines.

Abstract: The technology of this application relates to a user data management method and a related device, to improve user information security. The method in embodiments of this application includes a data request device sends a first request to a blockchain platform, where the first request indicates that the data request device needs to access a data storage device. The data request device receives first permission information sent by the blockchain platform, where the first permission information indicates whether the data request device has permission to access the data storage device. If the first permission information indicates that the data request device has the permission to access the data storage device, the data request device sends a second request to the data storage device, where the second request includes an access address.

Abstract: Embodiments of this application provide a user data management method and a related device, to improve user data security. The method includes: A data request device sends a first request to a blockchain platform, where the first request indicates that the data request device needs to access a data storage device. The data request device receives first permission information sent by the blockchain platform, where the first permission information indicates whether the data request device has permission to access the data storage device, and the permission is related to signature information of the data request device, an access type, and an operator public key; and sends a second request to the data storage device if the first permission information indicates that the data request device has the permission to access the data storage device, where the second request includes an access address and an operator private key signature.

Abstract: Embodiments of the disclosure provide a method, device and computer readable medium for protecting MAC addresses. According to embodiments of the present disclosure, the terminal device may obtain a set of virtual MAC addressed from a network device and may connect with a further network device (for example, Wi-Fi AP or Bluetooth devices) using the virtual MAC addresses. In this way, tracking the terminal device with MAC address is prevented so that user privacy protection could be enhanced.

Abstract: This disclosure provides a communication system and a communication method. The communication system may include a network service node (NSN) and a user service node (USN). The NSN communicates with the USN through an external interface. The NSN includes an authentication function entity and/or an access management function entity. The USN is associated with one more terminal devices. The USN includes the following function entities: a data forwarding function entity, a session management function entity, and a user data storage function entity. The function entities included in the USN communicate with each other through an internal interface. Based on the function entities included in the USN, the USN may provide a basic network service for the associated one or more terminal devices.

Abstract: A communication method and a communication system. The method may include: A first network device generates a node identifier, where the node identifier includes a global part and a local part, and the global part is determined based on geographical location information of a region covered by a second network device in which a node is located, for example, the second network device may be a device in mobile edge computing (MEC), and the local part is determined based on identity information of a terminal device associated with the node. The first network device sends the node identifier to the terminal device. In embodiments of this application, the geographical location information is introduced into the node identifier, so that a node that is identified nearby in space can also be short-distance in a physical network, thereby reducing an end-to-end latency.

Abstract: This application provides methods and apparatuses for communication. In an example method, a first digital reflection (DR) receives a first message, where the first message includes data to be sent to a first terminal device and an identifier of the first terminal device, and the first DR is associated with the first terminal device. The first DR transmits the data to the first terminal device based on a local locator (LLOC) of the first terminal device, where the first DR stores a twin-globally unique temporary identity (TWIN-GUTI) of the first terminal device, the TWIN-GUTI includes the LLOC, the LLOC corresponds to the identifier of the first terminal device, the first DR is deployed on first multi-access edge computing (MEC), and the TWIN-GUTI is generated by the first MEC.

Abstract: This disclosure provides methods and apparatuses for association between communication devices. One method includes: sending, by a terminal device to a network device, a first message for establishment of an association relationship between the terminal device and a digital reflection (DR), wherein the first message comprises a first twin-globally unique temporary identity (TWIN-GUTI) of the terminal device, and wherein the first TWIN-GUTI comprises a first temporary identity (DRTI) of the DR and a globally unique identity (GUMEI) of first multi-access edge computing (MEC), and receiving, by the terminal device from the DR, a response message.

Abstract: The present disclosure relates to mutual authentication methods and apparatuses. In one example method, a digital reflection (DR) sends a first message to a terminal device, where the first message includes a first DR public key that is a public key of the DR signed by using a private key of a home network. The DR encrypts a first random number by using a second terminal device public key. The DR sends a second message to the terminal device, where the second message includes the first random number encrypted by using the second terminal device public key. The DR receives a second response message sent by the terminal device, where the second response message includes an encrypted first random number encrypted by using a second DR public key. The DR decrypts the encrypted first random number by using a private key of the DR to obtain the first random number.

Abstract: A computation offloading method and an apparatus. In network edge computation offloading, an edge node receives states of computational tasks sent by one or more served terminal devices and determines allocation of computing resources based on received states of one or more computational tasks. Then, the edge node broadcasts the allocation of the computing resources to the served terminal devices, and the terminal devices each determine, based on the resource allocation, whether to offload the computational task to the edge node for computing. Therefore, the edge node and the terminal device each can have a wider capability of sensing an environment in actual decision-making, thereby effectively improving decision-making benefits of the edge node and the terminal device.

Abstract: This disclosure relates to the field of communication technologies, and provides a communication system, a server, and a communication method and apparatus. The communication system includes a multi-access edge computing MEC and a digital reflection DR, at least one DR is deployed on the MEC, the DR corresponds to one group of terminal devices, and one group of terminal devices include at least one terminal device. The DR may provide a service for the group of terminal devices corresponding to the DR. The DR has at least one core network function, where the core network function includes at least one of mobility management, unified data management, session management, policy management, and access authentication and authorization.

Abstract: Embodiments of the present disclosure relate to method and device for interworking between service function chain (i.e., service chain) domains In some embodiments, there is provided a communication method comprising: receiving, at a first logic node of a first service chain in a first domain, a first packet associated with a second service chain in a second domain; converting the first packet into a second packet comprising first interworking information between the first service chain and the second service chain, the first interworking information comprising a flag indicating that the second packet is an interworking packet, an address of the first logic node, a first flow identifier of the second packet, a first service path identifier of the second packet and metadata associated with the second service chain; transmitting the second packet to a second logic node in the second domain; and receiving from the second logic node a response to the metadata.

Abstract: Embodiments of the disclosure provide a method, device and computer readable medium for protecting MAC addresses. According to embodiments of the present disclosure, the terminal device may obtain a set of virtual MAC addressed from a network device and may connect with a further network device (for example, Wi-Fi AP or Bluetooth devices) using the virtual MAC addresses. In this way, tracking the terminal device with MAC address is prevented so that user privacy protection could be enhanced.

Abstract: Embodiments of the present disclosure relate to method and device for interworking between service function chain (i.e., service chain) domains In some embodiments, there is provided a communication method comprising: receiving, at a first logic node of a first service chain in a first domain, a first packet associated with a second service chain in a second domain; converting the first packet into a second packet comprising first interworking information between the first service chain and the second service chain, the first interworking information comprising a flag indicating that the second packet is an interworking packet, an address of the first logic node, a first flow identifier of the second packet, a first service path identifier of the second packet and metadata associated with the second service chain; transmitting the second packet to a second logic node in the second domain; and receiving from the second logic node a response to the metadata.