Abstract: The disclosure provides a composite anode electrode material and a preparation method thereof, an anode electrode material and a lithium ion battery. The composite anode electrode material includes a defect-type transition metal oxide and a lithium titanate, wherein the lithium titanate is compounded with the defect-type transition metal oxide in the manner of coating and/or doping, the defect-type transition metal oxide is a secondary particle, and a transition metal element in the defect-type transition metal oxide is selected from any one of tungsten, yttrium and tin. The probability of a side reaction between the defect-type transition metal oxide and an electrolyte is greatly reduced and a volume expansion effect of an anode electrode of a battery in the process of deintercalating lithium ions is greatly reduced, thereby the lithium ion battery including the composite anode electrode material has a higher capacity retention rate after cycling.

Abstract: A content distribution server, including a central server and a plurality of edge servers. The central server may be configured to obtain popularity ranking information of the video files according to video file requesting history of user terminals, and obtain sections of multiple video files based on the popularity ranking information from a content server and transmit the sections to the edge server. The plurality of edge servers may include a file caching server and a mobile edge computing server of a user terminal, and each of the edge server(s) may be configured to cache sections of the multiple video files which are received from the central server, and send a video file requested by the user terminal to the user terminal.

Abstract: The present application discloses a method and system for interactive transmission of panoramic video, wherein the method comprises: determining, by a client, the location information of a user's current region of interest; requesting a server for video information of the region of interest by using the location information; and, acquiring, by the server, a panoramic video slice corresponding to the region of interest according to the location information, and transmitting the panoramic video slice to the client. With the present invention, resource overhead and a delay of transmission of panoramic video can be reduced.

Abstract: The present application discloses a method and system for interactive transmission of panoramic video, wherein the method comprises: determining, by a client, the location information of a user's current region of interest; requesting a server for video information of the region of interest by using the location information; and, acquiring, by the server, a panoramic video slice corresponding to the region of interest according to the location information, and transmitting the panoramic video slice to the client. With the present invention, resource overhead and a delay of transmission of panoramic video can be reduced.

Abstract: A method of sampling ingredients of an oil-bearing inclusion includes a) providing a first container and a second container, an external diameter of the first container being smaller than an internal diameter of the second container, and the first and second containers both being transparent; b) adding a solvent into the first container and sealing said first container; c) adding an oil-bearing inclusion sample into the second container, and putting the first container that contains the solvent and is sealed in step b) into the second container; and d) using a laser to ablate the oil-bearing inclusion sample contained in the second container that is sealed in step c), and using the laser to break an end portion of the first container close to the sample on condition that the second container is maintained complete, so as to allow the solvent in the first container to enter the second container.

Abstract: The present invention relates to a sample chamber for laser ablation analysis of fluid inclusions, comprising a sample cell having a sample cell through-hole extending along the vertical direction and a sample channel extending through the sample cell in a direction transverse to the vertical direction and communicating with the sample cell through-hole. A transparent element is arranged on each of the top and bottom sides of the sample cell through-hole, and is fixed to the sample cell through a fixing ring. The sample chamber further comprises a base comprising a viewing hole and a receiving portion for receiving the sample cell, wherein the viewing hole is coaxially aligned with the sample cell through-hole when the sample cell is placed within the receiving portion. According to the sample chamber of the present invention, it is only necessary to change the sample cell during replacement of the sample chamber, which leads to a convenient operation.

Abstract: A method of sampling ingredients of an oil-bearing inclusion includes a) providing a first container and a second container, an external diameter of the first container being smaller than an internal diameter of the second container, and the first and second containers both being transparent; b) adding a solvent into the first container and sealing said first container; c) adding an oil-bearing inclusion sample into the second container, and putting the first container that contains the solvent and is sealed in step b) into the second container; and d) using a laser to ablate the oil-bearing inclusion sample contained in the second container that is sealed in step c), and using the laser to break an end portion of the first container close to the sample on condition that the second container is maintained complete, so as to allow the solvent in the first container to enter the second container.