Abstract: The present invention provides a multi-load wireless power transfer system based on high-order Anti-PT symmetry. By introducing a “W-shaped” anti-resonance mode into a basic WPT platform, an effective Anti-PT non-Hermitian system is conveniently constructed. The “level attraction” of the anti-resonance mode is combined with the “level splitting” of the anti-resonance mode and the resonance mode, to study the “level pinning” effect of high-order Anti-PT symmetry. Compared with the traditional resonant WPT, the anti-resonant WPT has higher security, stability, transfer efficiency, and flexibility. Considering the miniaturization and integration of devices, a “meta coil” is designed by using a “synthetic dimension”, and used to construct a high-order Anti-PT symmetric system, thereby achieving multi-load efficient WPT. The new WPT technology based on the “level pinning” effect of high-order Anti-PT symmetry provides a good application research platform for enriching non-Hermitian physics.

Abstract: The present application discloses a key providing method, a video playing method, a server and a client, in which the video playing method includes: sending a download request to the server and receiving an index file of a target video data delivered by the server; constructing an access request based on a specified string in the index file, and sending the access request to the server to acquire from the server a preset key which the access request is directed to; sending to the server a file acquisition request including a file address to acquire from the server encrypted fragmented data which the file address of the fragmented data is directed to; decrypting the acquired encrypted fragmented data by using the preset key, and playing the decrypted fragmented data. The technical solutions provided in the present application can effectively protect copyrights of video data.

Abstract: The present disclosure provides a page processing method and device thereof. In particular, the method comprises: receiving a first command, where the first command is configured to instruct and visit a first page and, the first page is a page visited on a terminal; reading a cached resource of the first page from a terminal memory; based on the cached resource of the first page, re-loading the first page; and displaying the re-loaded first page on the terminal. The present disclosure solves the technical issue of a low processing speed when a backward operation is executed in the page.

Abstract: A method and a device for restoring pages of a browser are provided. The method includes: receiving, by a browser, a command to open page One; receiving, by the browser, a command to store script state (ScriptState) data of the page One, leave the page One, and open page Two; and receiving, by the browser, a command to store ScriptState data of the page Two, leave the page Two, re-open the page One, and restore running of script of the page One.

Abstract: The present disclosure discloses a method and terminal for playing a video file in the technical field of playing a video. The method comprises: a video client receives a video playing instruction for a target video, constructs a video playing request directed to a preset decryption proxy module, and invokes a system hardware player to process the video playing request; the decryption proxy module acquires a download request of the system hardware player for an index file of the target video; the decryption proxy module downloads an index file of the target video, reconstructs an encrypted key storage address in the index file, returns the reconstructed index file to the system hardware player; the system hardware player acquires a key through the reconstructed key storage address, plays the video file of the target video according to the key. The system hardware player may play a video file encrypted twice.

Abstract: The present application discloses a key providing method, a video playing method, a server and a client, in which the video playing method includes: sending a download request to the server and receiving an index file of a target video data delivered by the server; constructing an access request based on a specified string in the index file, and sending the access request to the server to acquire from the server a preset key which the access request is directed to; sending to the server a file acquisition request including a file address to acquire from the server encrypted fragmented data which the file address of the fragmented data is directed to; decrypting the acquired encrypted fragmented data by using the preset key, and playing the decrypted fragmented data. The technical solutions provided in the present application can effectively protect copyrights of video data.

Abstract: The present disclosure provides a page processing method and device thereof. In particular, the method comprises: receiving a first command, where the first command is configured to instruct and visit a first page and, the first page is a page visited on a terminal; reading a cached resource of the first page from a terminal memory; based on the cached resource of the first page, re-loading the first page; and displaying the re-loaded first page on the terminal. The present disclosure solves the technical issue of a low processing speed when a backward operation is executed in the page.

Abstract: The present disclosure provides a method and a device for restoring pages of a browser. The method includes the following steps: receiving, by a browser, a command to open page One; receiving, by the browser, a command to store script state (ScriptState) data of the page One, leave the page One, and open page Two; and receiving, by the browser, a command to store ScriptState data of the page Two, leave the page Two, re-open the page One, and restore running of script of the page One. Directed towards the issues such as the occurrence of missing of certain webpage events because most existing browsers only cache the webpage main resources but don't cache the javascript scripts correspondingly, the present disclosure provides a method to cache the content and state of javascript in a V8 engine of the browsers based on the CrossWalk kernel and to restore state.

Abstract: A bendable transferring bed has a bed frame, multiple bed-panel units, and at least one coupling. Each two adjacent ones of the bed-panel units are pivotally connected to each other. Each bed-panel units has a moveable bed-panel and a transmission shaft. The moveable bed-panel is moved relative to the mounting frame through the rotating of the transmission shaft. The two transmission shafts of each two adjacent ones of the bed-panel units are connected by one of the couplings, and thus the moveable bed-panels of all the bed-panel units can be moved together. The moveable bed-panels of the bed-panel units are bendable relative to each other to keep the patient in a sitting position or other positions. The moveable bed-panels can be moved when the moveable bed-panels are bent relative to each other by the coupling, such that the patient can be moved when in the sitting position.

Abstract: The invention relates to a new technology which uses a surface modification method for ultra-precision machining, and in particular relates to a particle beam-assisted ultraprecision machining method for single-crystal brittle materials. The invention, the particle beam-assisted ultra-precision machining method for single-crystal brittle materials, can significantly improve machining accuracy, reduce surface finish and greatly reduce tool wear during ultra-precision machining of brittle materials.

Abstract: The invention relates to a new technology which uses a surface modification method for ultra-precision machining, and in particular relates to a particle beam-assisted ultraprecision machining method for single-crystal brittle materials. The invention, the particle beam-assisted ultra-precision machining method for single-crystal brittle materials, can significantly improve machining accuracy, reduce surface finish and greatly reduce tool wear during ultra-precision machining of brittle materials.