101results about How to "Improve distribution speed" patented technology

An exhaust nozzle assembly for a gas turbine engine, the assembly comprises a main axis, an inner nozzle, an outer nozzle, a translatable centre-body and an actuator for translating the centre-body between a forward position and a rearward position. The centre-body is disposed radially inwardly of the inner nozzle thereby partly defining an inner duct for a core engine gas flow, an outer duct for a bypass gas flow is defined by the inner nozzle and the outer nozzle. The outer nozzle extends downstream of the inner nozzle and with the centre-body defines a final mixing duct having a final exhaust exit area. When the centre-body is in the forward position the final exhaust exit area is at a maximum area, and when the centre-body is in a rearward position the final exhaust exit area is at a minimum area.

A live telecast system of reciprocal-connected stream media comprises collection server, index server, a numbers of client ends and a numbers of super-seed nodes. It is featured as making said super-seed nodes have more strong download-service ability than that of client ends and forming high speed distribution network of stream media data to speed up transmission of stream media data by utilizing super-seed nodes distributed on network.

An improved nozzle vane for a gas turbine engine, comprising a vane wall having inner and outer wall surfaces, the wall surfaces being spaced from one another to define a plurality of fluid passageways for a cooling medium; discreet cavities formed by interior wall members disposed between the inner and outer wall surfaces and within the fluid passageway for the cooling medium; a plurality of impingement cooling sleeves disposed in the discreet cavities defined by the inner and outer wall surfaces and by interior wall members; and a plurality of non-round, e.g., serrated, openings in each of the impingement cooling sleeves, with the openings being sufficient in size and number to accommodate the flow of a cooling media.

The invention discloses a prefetch method for fixed-point data in Peer-to-Peer on demand system, comprising the steps of: (1) the time interval of a pointing device is decided by analyzing user's behavior and experience improvement; a medial head file and a data file are resolved by a file analyzer, metadata information is recorded and a corresponding index file is created; (2) according to media index file information, in condition of acquiring current playing data, prefetching point data is acquired from partner node or source server on 'Minimum Redundancy First' principle with residual bandwidth,; and (3) according to the drag position, integrating the media acquiring data in current channel cache window, a client automatically adjusts the play position to the user-appointed time point, or nearest prefetching point. The invention is based on observation of user's behavior and makes full use of the characteristic of Peer-to-Peer, realizes effective share of fixed-point data, lowers bandwidth consumption of a stream media server, improves user's watch experience, and is suitable for large-scale application.

The invention discloses a file releasing method and system based on point-to-point. The file releasing method comprises the following steps: obtaining pre-generated fragmented file package linking information; obtaining a pre-stored fragmented file package source data according to the obtained fragmented file package linking information and downloading the pre-stored fragmented file package source data; after downloading a fragmented file package, registering a client side downloading the fragmented file package to a fragmented file package P2P(peer-to-peer) torrent; and updating the fragmented file package interlinking information according to the registered fragmented file P2P torrent information. By use of the method and the system, the peek bandwidth of a server and the user cost can be reduced during the initial releasing of the file.

The invention discloses a method for selecting neighbor nodes for peer-to-peer network transmission. The method comprises the following steps: establishing a connection between a central node and target nodes, which download target files, in a cluster, and judging whether the target nodes have non-downloaded file fragmentations or not; if YES, inquiring network usage amounts and total network card bandwidths of the target nodes; calculating residual bandwidths of the target nodes according to the network usage amounts and the total network card bandwidths of the target nodes, and sequencing the target nodes according to an order of the residual bandwidths from large to small to obtain a sequence table; selecting the previous N target nodes in the sequence table as the neighbor nodes. The method can increase the data distribution speed on the premise of reducing the influence on normal operation of tasks of the cluster. The invention further discloses a system for selecting the neighbor nodes for peer-to-peer network transmission, a computer readable storage medium and a server which have the above beneficial effects.

The invention discloses a latent gaming-based method for distributing frequency spectrums in a cognition wireless system, for improving a frequency spectrum distribution speed in the cognition wireless system, and relates to the technical field of frequency spectrum distribution in a communication system. The method comprises: comparing a user randomly selected by a system and the last gaming user before each gaming begins, and if the two are the same user, commanding the system to reselect another user for this round of gaming, otherwise, performing next round of gaming. Since, repeated gaming of the same user cam not improve a signal-to-interference ratio, in the method provided by the invention, under the condition that system communication quality is ensured, the gaming frequency is reduced so that the system processing speed is enhanced. The provided method is suitable for the frequency spectrum distribution in the cognition wireless system.

The invention relates to the computer network field, more specifically a P2P acceleration content distribution network system and method. The system comprises a distribution task obtaining module, a resource management server, a resource memory, a resource tracking dispatch server and a plurality of cloud acceleration edge nodes. The distribution task obtaining module logs the information of distribution tasks in the resource management server through an operation interface by a hardware input device; the resource memory downloads and stores distribution task files, and distributes the distribution tasks to the cloud acceleration edge nodes; the resource tracking dispatch server performs P2P acceleration task distribution, monitors and records each process of task distribution, and feeds back data to the resource management server. Compared with the prior art, the system and method combine the advantages of P2P and cloud acceleration, perform MD5 verification on distribution tasks, monitor task distribution processes in real time, select an optimum download path for nodes, increase task distribution speed and improve system reliability.

The invention provides a double windows based client fragment scheduling method and system. The method is applied to a P2P SVC streaming media system for scheduling data fragments in case of an equal time length or when the play time length between each layer changes in proportion. The method comprises the following steps: (101), a step for downloading a fragment needing a request again in an Emergent Window subwindow; (102) a step for downloading a fragment in a General Window subwindow; and (103), a window sliding, and returning to step (101) until fragment downloading is finished, wherein the Emergent Window subwindow and the General Window subwindow are two subwindows obtained by dividing a client sliding window according to a distance from a play point, the size of each subwindow is equal, the Emergent Window subwindow comprises all data fragments in the General Window subwindow before window sliding, and when download of some data fragments fails in the General Window subwindow before the window sliding, the Emergent Window subwindow after the window sliding requests to download failed fragments again.

The invention discloses a method for designing a centrifugal impeller splitter blade. The method includes the steps that a middle cross section, a front cover plate cross section and a rear cover plate cross section of an impeller are determined; three split flow points on the three cross sections are determined on the three cross sections respectively according to the principle that flows on the two sides of each split flow point are equal, and three bone lines on the three cross sections are obtained; and the three bone lines are mixed and scanned into a curved surface, the curved surface extends towards a front cover plate and a rear cover plate of the impeller till the curved surface intersects with the front cover plate and the rear cover plate, a work face of the impeller splitter blade is obtained, and the thickness of the work face is increased to obtain the back side of the splitter blade. The designed splitter blade can equally divide water flow in a flow channel between two adjacent long blades into two parts equal in flow, speed distribution at an outlet of the impeller can be effectively improved, hydraulic loss in the impeller is reduced, and the lift and the efficiency of the centrifugal impeller are improved.

A heat transfer panel, or multiple panels, utilized to absorbed heat from the turbine exhaust gas as part of the Rankin cycle which simultaneously distributes the exhaust gas through the waste heat boiler. The panel varies the gas flow characteristics across a transverse and longitudinal plane, thereby eliminating the need for a separate flow distribution device.

The invention discloses a container mirror image processing method and device, computer equipment and a storage medium. The method comprises the steps of acquiring required file information used for generating a container mirror image, and constructing a complete mirror image according to the required file information; determining a to-be-deleted specified directory in the complete mirror image, and compressing the complete mirror image based on the to-be-deleted specified directory to obtain a compressed mirror image; obtaining directory content of a to-be-deleted specified directory, and generating to-be-mounted content based on the to-be-deleted directory content; and storing the to-be-mounted content to a block device file system, and mounting the compressed mirror image to the block device file system. According to the method, a specified directory in a constructed complete mirror image is deleted to compress the mirror image. The deleted directory content of the specified directory is used as the to-be-mounted content to be stored in the block device file system, and the compressed mirror image is mounted to the block device file system, so that the size of the to-be-distributed mirror image file is reduced, and the distribution speed of the container mirror image is increased.

The embodiment of the invention provides a network service method and device, electronic equipment and a readable storage medium, applied to the technical field of the Internet. The method comprises the steps of extracting a key feature in each user request, and according to the key feature and a pre-built corresponding relation between ISP network groups and the key features, determining the ISPnetwork group corresponding to each user request; aiming at each user request in each ISP network group, cyclically executing the steps of selecting an ISP cache node, computing the gain of the ISP network group and updating a strategy parameter in sequence according to a deep reinforcement learning algorithm, determining whether the target ISP cache node which maximizes the gain of the ISP network group and meets a user request condition exists, and if yes, responding to the user request via the target ISP cache node and transmitting request data to a user; and otherwise, responding to the user request via a CDN and transmitting the request data to the user. According to the method and device provided by the invention, the network service quality can be improved.

The invention provides a wind turbine energizer (1) based on aerodynamics for a wind driven generator. The wind turbine energizer comprises a guide plate (3) arranged in front of a wind turbine and provided with a streamline section and a supporting structure (2) thereof. Based on different hub heights and blade lengths of the wind turbine, on the premise of not interfering in rotation of wind turbine blades and not generating harmful pneumatic interference, the wind turbine energizer (1) which is proper in size is arranged near the front of the wind turbine. By forming a shrinking channel inthe upstream part of an impeller of the wind turbine, the average speed of an air flow in a region of the impeller of the wind turbine is improved, the speed is more uniformly distributed, and therefore, the efficiency of the wind turbine is improved, the starting air speed of the wind turbine is reduced, the operation stability of a wind wheel is improved, the external torque subjected to a rotary shaft of the wind wheel is reduced, and the service lives of the blades, hubs and a transmission system are prolonged.

The invention discloses a data piece equipartition selecting system and method based on the number of client-sides and belongs to the information technology processing field. The system comprises a server-side, a Tracker server and the client-sides. The method comprises the following steps: the server-side encoding data to form a seed document, and analyzing the seed document to be connected to the Tracker server; the server-side sending parameters of selection orders of the seed document and data pieces to the client-sides; after receiving the parameters of the selection orders of the seed document and the data pieces, the client-ends analyzing the seed document and conducting data pieces selection and data loading according to the number of the data pieces of the seed document and the parameters of the selection orders of the data pieces. The data piece equipartition selecting system and method solves the problem that in a data piece random selection strategy, data pieces in a BitTorrrent system is not evenly distributed.