Abstract: A device for handling oil pipes and a method for workover includes a base, which includes an oil pipe bearing area extending in a longitudinal direction, the oil pipe bearing area being provided therein with at least one positioning member arranged in a transverse direction perpendicular to the longitudinal direction of the base, for positioning an oil pipe; and a movable oil pipe grasping assembly, which is located above the base and configured to grasp the oil pipe and place the oil pipe in the oil pipe bearing area, or grasp the oil pipe from the oil pipe bearing area and place the oil pipe in an area outside the oil pipe bearing area. The device for handling oil pipes provided by the present disclosure is able to achieve automatic handling of oil pipes, thereby decreasing labor intensity of operators, and improving working efficiency and safety factors of the work.

Abstract: An optical-lens-set includes a first lens of a convex object surface near the optical-axis, a second lens of negative refractive power of an object surface with a convex portion near the optical-axis and a convex portion near its periphery, a third lens of a convex image surface near its periphery, a fourth lens of a concave object surface near its periphery and a convex image surface near its periphery, a fifth lens of a concave object surface near its periphery and an image surface with a convex portion near the optical-axis and a convex portion near its periphery, a sixth lens of a concave image surface near the optical-axis so that an F-number, the total thickness ALT of all six lens, an air gap G34 between the third lens and the fourth lens and an air gap G45 between the fourth lens and the fifth lens satisfy F-number?1.8 and ALT/(G34+G45)?9.0.

Abstract: An optical lens set includes a first lens element of an object-side surface with a convex portion in a vicinity of an optical axis, a second lens element of an image-side surface with a concave portion in a vicinity of its periphery and a sixth lens element of an image-side surface with a convex portion in a vicinity of its periphery. T5min is the minimal distance from the object-side surface of the fifth lens element to the image-side surface of the fifth lens element and the fifth lens element has a fifth lens element thickness T5 along the optical axis to satisfy T5min/T5?0.6.

Abstract: An optical imaging lens set includes a first lens element with an object-side surface of a convex part in a vicinity of the optical axis, a second lens element with an image-side surface of a concave part in a vicinity of its periphery, the first lens element being glued to the second lens element to eliminate an air gap, a third lens element with an object-side surface of a concave part in a vicinity of its periphery, a fourth lens element and a fifth lens element of plastic material, ALT being the total thickness of the five lens elements and Gmax being the max value of the air gap from the first lens element to the fifth lens element so that ALT/Gmax?2.2.

Abstract: An apparatus for tripping oil pipe and a system for automatic well workover comprises an elevator transfer device for transferring an elevator connected with an oil pipe, the elevator transfer device being structured for enabling continuous, automatic tripping operations of the oil pipe. The elevator transfer device comprises a lifting assembly used for lifting and releasing an oil pipe engaged with the elevator, and an elevator transport assembly used for transferring an elevator at a wellhead and/or an elevator on the lifting assembly. The apparatus for tripping oil pipe can lower the labor intensity and improve operation safety.

Abstract: A mobile multimedia content aggregation and dissemination platform is provided that aims to automate the creation, collection, aggregation, and dissemination of RSS and non-RSS information for and to interested parties. This platform may be used for the construction of a personalized blogging agent as well as for a personalized news aggregator.

Abstract: A video-on-demand (VOD) server in an Internet protocol television (IPTV) network with a network of set-top boxes includes IPTV operational data and an analysis module that selects a content item. The VOD server divides the content item into sequential chunks, divides the chunks into stripes, pre-populates set-top boxes in a peering network with at least one stripe from each chunk, receives a request for the content item, and directs each set-top box to sequentially stream its stripes. A method includes selecting a content item based upon IPTV operational data, dividing the content item into sequential chunks, dividing the chunks into stripes, pre-populating set-top boxes in a peering network with at least one stripe from each chunk, receiving a request for the content item, and directing each set-top box to sequentially stream its stripes.

Abstract: The present invention discloses a mold core assembly. The mold core assembly includes at least one core. The core comprises a main body member and a high temperature-resistant material with a melting point over 1500° C., the length-diameter ratio of the main body member is greater than 50, and the main body member includes a high melting point metal with a melting point over 1500° C. The mold core assembly also includes a shell mold, wherein the shell mold encloses the core to form a cavity between the shell mold and the core, so as to accommodate a molten casting metal. The present invention further discloses an investment casting method.

Abstract: A method includes receiving a request via a peer-to-peer network at a first media device from a second media device. The request indicates a portion of video content and also indicates a time that delivery of the portion of video content to the second media device is to be completed. The method further includes transmitting, based on a data rate, the portion from the first media device to the second media device. The data rate is based on a bandwidth that is less than an available bandwidth usable by the first media device to transmit data and that is greater than or equal to a bandwidth threshold for serving the request. The bandwidth threshold is based on the time indicated by the request.

Abstract: A video-on-demand (VOD) server in an Internet protocol television (IPTV) network with a network of set-top boxes includes IPTV operational data and an analysis module that selects a content item. The VOD server divides the content item into sequential chunks, divides the chunks into stripes, pre-populates set-top boxes in a peering network with at least one stripe from each chunk, receives a request for the content item, and directs each set-top box to sequentially stream its stripes. A method includes selecting a content item based upon IPTV operational data, dividing the content item into sequential chunks, dividing the chunks into stripes, pre-populating set-top boxes in a peering network with at least one stripe from each chunk, receiving a request for the content item, and directing each set-top box to sequentially stream its stripes.

Abstract: A mobile multimedia content aggregation and dissemination platform is provided that aims to automate the creation, collection, aggregation, and dissemination of RSS and non-RSS information for and to interested parties. This platform may be used for the construction of a personalized blogging agent as well as for a personalized news aggregator.

Abstract: A layered syndicated feed or content is provided having layers defined according to a media type (e.g., text, graphic, audio, or video) wherein each layer has a plurality of levels such that each level provides either inclusive or exclusive content of the layer's media type in varying degrees of detail or depth. Furthermore, a system is provided for requesting and storing user and mobile device profiles indicative of the syndicated content layers and levels that the user is interested in receiving and that the user's mobile device is capable of receiving.

Abstract: A plurality of portions of a video content item is distributed to a plurality of peers, respectively, of a peer-to-peer network. Each of the plurality of portions encodes less than an entire portion of the video content item. A peer of the network retrieves at least a subset of the plurality of portions of the video content item from at least a subset of the peers. The at least the subset of the plurality of portions of the video content item enables recovery of the video content item by the peer.

Abstract: A layered syndicated feed or content is provided having layers defined according to a media type (e.g., text, graphic, audio, or video) wherein each layer has a plurality of levels such that each level provides either inclusive or exclusive content of the layer's media type in varying degrees of detail or depth. Furthermore, a system is provided for requesting and storing user and mobile device profiles indicative of the syndicated content layers and levels that the user is interested in receiving and that the user's mobile device is capable of receiving.

Abstract: A device for handling oil pipes and a method for workover includes a base, which includes an oil pipe bearing area extending in a longitudinal direction, the oil pipe bearing area being provided therein with at least one positioning member arranged in a transverse direction perpendicular to the longitudinal direction of the base, for positioning an oil pipe; and a movable oil pipe grasping assembly, which is located above the base and configured to grasp the oil pipe and place the oil pipe in the oil pipe bearing area, or grasp the oil pipe from the oil pipe bearing area and place the oil pipe in an area outside the oil pipe bearing area. The device for handling oil pipes provided by the present disclosure is able to achieve automatic handling of oil pipes, thereby decreasing labor intensity of operators, and improving working efficiency and safety factors of the work.

Abstract: A method, server and computer storage medium for logging in, the method includes: receiving a login request including user's identification; assigning a body identification corresponding to the user's identification according to the login request, and generating a success login message that includes the body identification; returning the success login message including the body identification. The method distributes a corresponding body identification after receiving a login request that includes user's identifications, then returns a success login message containing the body identification to the client. When a same user's identification logs in different terminal clients, corresponding body identifications are distributed to every client, thereby the same user's identification can log in different terminal clients simultaneously without forcing other user's identifications which have logged in other terminals to be logged out.

Abstract: An electro discharge machining apparatus comprises an electrode configured to machine a desired feature in a workpiece, a pulse generator configured to energize the electrode and the workpiece to opposite electrical polarities, a machining solution source configured to pass a machining solution between the electrode and the workpiece, and a servomotor configured to drive the electrode to move relative to the workpiece. The electro discharge machining apparatus further comprises at least one detection element configured to detect machining signals, and a controller. The controller controls the pulse generator and the servomotor to machine the workpiece according to a plurality of first process parameters predetermined therein and analyzes the detected machining signals to generate a first response signal to activate a plurality of second process parameters predetermined therein and different from the first process parameters to machine the workpiece. An electro discharge machining method is also presented.

Abstract: Writing logs in a distributed information system are provided. The logs are related to a transaction instance. A method includes retrieving a log proxy instance from a log server. The log proxy instance includes information related to the transaction instance and information related to currently running component in the transaction instance. The method also includes writing the logs for the transaction instance based on the log proxy instance. Aspects of the present invention further provide a method of facilitating writing logs and analyzing logs. Moreover, the embodiments further provide corresponding apparatuses and system.

Abstract: An apparatus for tripping oil pipe and a system for automatic well workover comprises an elevator transfer device for transferring an elevator connected with an oil pipe, the elevator transfer device being structured for enabling continuous, automatic tripping operations of the oil pipe. The elevator transfer device comprises a lifting assembly used for lifting and releasing an oil pipe engaged with the elevator, and an elevator transport assembly used for transferring an elevator at a wellhead and/or an elevator on the lifting assembly. The apparatus for tripping oil pipe can lower the labour intensity and improve operation safety.

Abstract: Systems, storage medium, and methods associated with transfer of content are disclosed herein. In embodiments, a storage medium may have first and second instructions configured to facilitate operation across two computing devices. In embodiments, the first instructions may be configured to enable a source computing device to recognize a sourcing gesture of a user as a command to initiate a cross-device operation, and in response to recognition of the sourcing gesture, generate and transmit a sourcing message to initiate the cross-device operation. The second instructions may be configured to enable the target computing device to recognize a targeting gesture of the user that is complementary to the sourcing gesture, and in response to recognition of the targeting gesture, generate and transmit a targeting message to facilitate completion of the initiated cross-device operation. Other embodiments may be described and/or claimed.