Abstract: The present application provides techniques of presenting bullet screens for live broadcast playback. The techniques comprise receiving a request for bullet screens sent from a client computing device during playback of at least one portion of a live broadcast video, wherein the bullet screens comprise comments moving across frames of the live broadcast video, the request comprises a timestamp, and the timestamp is associated with a playback progress of the at least one portion of the live broadcast video; determining a bullet screen segment file among a plurality of bullet screen segment files based on the timestamp, wherein the plurality of bullet screen segment files are generated by segmenting live bullet screen data associated with the live broadcast video into N bullet screen segment files, and the N is a positive integer; and transmitting the bullet screen segment file to the client computing device for display of the bullet screens.

Abstract: The present application provides techniques of presenting bullet screens for live broadcast playback. The techniques comprise receiving a request for bullet screens sent from a client computing device during playback of at least one portion of a live broadcast video, wherein the bullet screens comprise comments moving across frames of the live broadcast video, the request comprises a timestamp, and the timestamp is associated with a playback progress of the at least one portion of the live broadcast video; determining a bullet screen segment file among a plurality of bullet screen segment files based on the timestamp, wherein the plurality of bullet screen segment files are generated by segmenting live bullet screen data associated with the live broadcast video into N bullet screen segment files, and the N is a positive integer; and transmitting the bullet screen segment file to the client computing device for display of the bullet screens.

Abstract: The disclosure claims a magnetizing device and method for preparing magnetized water for dust fall of an underground coal mine. The device is formed by a plurality of magnetic drums in a parallel connection with connecting elbows in a “U”-shaped arrangement manner. Each magnetic drum consists of an external magnet, an internal magnet, a hollow pressure pipe, a spiral blade, a screen magnet cover, a connecting steel column, a pressure pipe, a closed nut and a flange plate. According to the disclosure, the internal and external magnets are arranged on a spiral flow channel consisting of the hollow pressure pipe, the spiral blade and the pressure blade by means of an alternating arrangement, thereby building an efficient magnetization environment combined by pulse cutting magnetization and spiral turbulence, enabling that the water for dust fall flowing through is magnetized continuously and efficiently.

Abstract: Embodiments of the present invention provide a method for input verification, comprising: sending a first picture corresponding to a first semantics and a second picture corresponding to a second semantics to a client, wherein the first semantics and the second semantics are correlated; receiving an operation information sent by the client, wherein, said operation information is information obtained by the client from performing operation on a second picture according to an operation instruction, and said operation instruction is triggered by the user based on the first semantics and the second semantics; performing verification on the operation information based on verification information corresponding to the first picture. The embodiments of the present invention further provide an apparatus for input verification. According to the technical solution provided by the embodiments of the present invention, the security of input verification can be enhanced.

Abstract: A liquid cooler including a heat sink. A hollow body is produced by extrusion having at least one flat outer surface between a first and a second end. At least one elongated cavity passes through the body from the first to the second end. The hollow body includes a plurality of parallel fins directed into and along the at least one cavity. An insert housed in the at least one cavity connects the tops of the fins in a fluid-tight manner thereby forming liquid channels for a coolant liquid between the insert and the hollow body. A lid is attached at both ends of the hollow body for forming a liquid cooling system.

Abstract: A liquid cooler including a heat sink. A hollow body is produced by extrusion having at least one flat outer surface between a first and a second end. At least one elongated cavity passes through the body from the first to the second end. The hollow body includes a plurality of parallel fins directed into and along the at least one cavity. An insert housed in the at least one cavity connects the tops of the fins in a fluid-tight manner thereby forming liquid channels for a coolant liquid between the insert and the hollow body. A lid is attached at both ends of the hollow body for forming a liquid cooling system.

Abstract: The present invention relates to thermosyphons, in particular for use in the cooling of electronic components. In a first embodiment a thermosyphon is manufactured by extruding a base (1) and milling a channel structure in the base to produce a plurality of fins (5) extending vertically from the base. A lid (3) comprising a number of fins (4) extending vertically from the lid is placed over the heat sink channel structure so that a thermosyphon of an expanding channel system is formed. In a second embodiment the evaporator and condenser sections are separated and connected by pipes. To form a leak proof seal between the lid and the base, joining is preferably done by friction stir welding. By providing an extruded thermosyphon, heat transfer is made more efficient than when junctions are used. The present invention provides a new way of efficiently manufacturing an integrated structure, while keeping the heat transfer of the structure high.