Abstract: A method for use in a Digital Living Network Alliance (DLNA) server, for controlling access to the DLNA server, includes: receiving an access request sent from a DLNA client to access the DLNA server; obtaining a media access control (MAC) address used by the DLNA client; detecting whether the MAC address exists in a preset blacklist; and denying access of the DLNA client, if the MAC address exists in the preset blacklist.

Abstract: The present disclosure relates to a method and an apparatus for finding a file in a storage device, and a router. The method includes: establishing an index for a specified file in the storage device according to file classifications or an identification of a device that uploaded the file, the storage device being a storage device configured in the router; and providing a classification view of the specified file for a user device, the classification view including identifications of the respective file classifications. The present disclosure provides the classification of the specified file for the user device by according to file types or the identification of the device for uploading the file, so that different user devices may more flexibly perform classification finding when viewing files in the storage device of the router, whereby it is convenient for a user to find the file, the operation is simple and efficient, and the user's experience is good.

Abstract: A router can be configured to serve web resources in response to expected web resource requests without requesting such resources from a corresponding remote web server. In an example, this functionality can be achieved by the router, wherein the router is configured to: receive a web resource access request from a terminal device, the web resource access request including a target uniform resource locator (URL); perform a search in a data structure containing a plurality of local URLs according to the target URL; identify a local URL of the plurality of URLs corresponding to the target URL according to the performed search; acquire a local version of a target web resource corresponding to the target URL from locally stored web resources according to the identified local URL; and communicate the local version of the target web resource to the terminal device.

Abstract: A method for use in a Digital Living Network Alliance (DLNA) server, for controlling access to the DLNA server, includes: receiving an access request sent from a DLNA client to access the DLNA server; obtaining a media access control (MAC) address used by the DLNA client; detecting whether the MAC address exists in a preset blacklist; and denying access of the DLNA client, if the MAC address exists in the preset blacklist.

Abstract: The invention provides a roll profile for work rolls for both shape control and free ruled rolling. Each of the work rolls has a tapered end. The curve of respective tapered end is a quartic curve represented by a formula y(x)=a0+a1x+a2x2+a3x3+a4x4, x?[0,Le], y(x)?[0,He]. It is possible to partially eliminate the asymmetric deformation due to the difference between abrasion of the upper and lower rolls. Further, closed type abrasion of conventional roll is changed into open type abrasion and box shaped abrasion of conventional roll is eliminated, which eliminating “cat ear” hole and fulfilling the requirements of free ruled rolling.

Abstract: Disclosed herein is a roll profile for work rolls for both shape control and free ruled rolling. Each of the work rolls has a tapered end. Providing starting point of the tapered end of the rolls being origin of coordinates, the curve of respective tapered end is a quartic curve represented by a formula y(x)=a0+a1x+a2x2+a3x3+a4x4, x?[0,Le], y(x)?[0,He]. Because the transition between the tapered end and the roll body is smooth, asymmetric deformation due to the difference between abrasion of the upper and lower rolls is eliminated, which reducing wedged shape of strip and reducing unstable rolling due to asymmetrical strip stresses caused by the axial shifting of the roll.