162results about How to "Avoid continuity" patented technology

The invention discloses a method, a device and a system for providing media content, which belong to the technical field of multimedia. The method comprises the following steps: receiving media content request from a media terminal; obtaining position information of requested media content slicing files in a plurality of media storage entities according to the media content request; reading the media content slicing files according to the position information and providing the media content slicing files for the media terminal. The device comprises a receiving module, an acquiring module and a providing module. The system comprises a plurality of media storage entities, a media content distribution device and a media content providing device. The invention provides the service quality of the media content, without switching media providing entities, avoids the switching time delay, improves the user service experience, is simpler and can be implemented.

A prosthesis for the treatment of hernias and/or laparoceles via an intraperitoneal route, having a mesh of filaments of non-resorbable and biocompatible polymer material having interstices permitting tissue growth and a sheet of polymer material having barrier properties and low adhesion to sensitive organs and tissues. The sheet is superimposed upon and joined to the mesh so as to form a stratified structure. In particular, the sheet is joined to mesh through a plurality of filaments located alongside each other at a spacing of not more than 5 mm. Each filament has a plurality of attachment sites to the mesh which are not more than 15 mm apart, and each length of filament between two successive attachment sites projects from the surface of the mesh facing sheet and is fused to the sheet.

The invention discloses a preparation method of a SiC/Al composite material. The method comprises the following steps: carrying out ball milling on alumina and/or silicon oxide powder and a dispersant by using a ball milling medium, adding a binder, and continuously carrying out ball milling to obtain a coating slurry, wherein a mass ratio of the powder to the dispersant to water to the ball milling medium to the binder is 1:0.005-0.01:0.1-0.4:2:0.01-0.03; immersing reticulated porous SiC ceramic in the coating slurry for full absorption, centrifuging, and drying; and embedding secondary-coated reticulated porous SiC ceramic into aluminum or aluminum alloy powder, carrying out vacuum pumping heating to fuse the aluminum or aluminum alloy, introducing argon, and carrying out heat insulation and pressure maintenance to obtain the SiC/Al composite material. The SiC/Al composite material obtained through the method is a bicontinuous phase, and the control of an interface structure and an interface reaction is realized through controlling the composition and performances of the coating slurry to realize strong combination between a silicon carbide matrix and the metal Al and uniform continuous distribution in a three dimensional space, so the segregation and the discontinuousness of the silicon carbide reinforcement are avoided, and the performances of the composite material are improved.

The invention provides a remanufacturing method for scrap titanium chips through ball milling-equal channel angular pressing. The remanufacturing method sequentially comprises the step of recovering and pretreating titanium chips, the step of performing ball milling treatment on the titanium chips, the step of loading the titanium chips into an equal channel angular pressing mold, the step of performing preprocessing at a room temperature through the equal channel angular pressing, the step of curing and processing at a high temperature, and the step of quenching. The ball milling-equal channel angular pressing composite technique provided by the invention is simple and practical to operate and high in controllability. Through remanufacturing, not only can nanometer block titanium materials (smaller than 200nanometers) with full densification be obtained, but also the metallurgical defect of the continuous distribution and gathering of large sliced oxides can be eliminated. In addition, the shapes of the titanium chips are refined and reformed, and anisotropy caused by deformation texture in hexagonal close packed titanium materials is restrained. The yield strength of the remanufactured nanometer titanium materials reaches to the level of 5-grade titanium, the distribution of nanometer particles of the oxides presents a dispersed uniform state, and through the isotropy of the properties of the materials, the remanufacturing of scrap titanium resources for value increase at low cost is realized.

The invention discloses a stereoscopic vision matching method based on weak edge and texture classification, and solves a technical problem of achieving quick and precise compact matching. The method comprises the steps: carrying out the division and matching of edge and weak texture regions, carrying out parallax error correction and filling, carrying out the refinement of depth edge parallax errors and carrying out compacting of a parallax map. For MADC matching cost, the method carries out the matching according to different properties of regions, carries out mutual parallax error correction or filling according to a matching result, carries out parallax error refinement for a shade region and a parallax discontinuous region, and obtains the complete and compact parallax map. The beneficial effects of the invention are that the method does not need to carry out global optimization, reduces the operation burden of an algorithm, enables a parallax continuity constraint to be matched with the type of the region, and avoids a conflict of common local optimization with the continuity constraint in the prior art. The method is high in universality, and can be widely used for various types of binocular vision and multi-view 3D imaging algorithms.

The invention provides a text display method and a text display device for an e-book reader. The method includes: recording data about character widths of each character in a vector font library under different font sizes and display setting information of a text, dividing the data of the text into more than one data segment, pre-typesetting each data segment according to the display setting information, determining corresponding starting and ending positions of each display text page displayed on a display screen in the text, searching the starting and ending positions of data corresponding to one received display text page requiring display, reading out the data between the starting position and the ending position, converting the data between the starting position and the ending position into code data, searching corresponding character images from the vector font library according to the code data, and displaying the character images on the display screen according to the display setting information. The device uses the method for displaying texts of e-books. The text display method and the text display device are capable of achieving rapid paging during e-book reading and effectively avoiding content discontinuity or messy codes during paging.

The invention provides a video coding conversion transmission control system based on network state self-evaluation. Aiming at the problems that the network evaluation algorithm judges the network state only by depending on the packet loss rate, the judgment division is too rough, the limitation of serving as a video transmission rate adjustment basis is large and the like, the invention providesa method for combining the packet loss rate, the network delay and the delay jitter as network state evaluation factors, and the judgment of the network state is more scientific and accurate. Aiming at the problem that effective pre-control measures cannot be taken under the condition that a network has an overload trend but is not overloaded, a network overload pre-control method is added, and the network overload problem is skillfully processed at any time. Aiming at the problems that the network overload is too serious and overload control cannot be carried out by simply adjusting coding parameters, the invention provides a non-key frame active abandoning method, so that the video quality is ensured, the transmission quality is also ensured, a frame loss strategy is carried out before coding, the coding workload is reduced, and the robustness and the high efficiency are higher.

A highly reliable LED package mounting structure which can realize improvement in solder fatigue life at low costs is provided. An LED package has a light-emitting surface which is perpendicular to a mounting surface of a circuit board, comprises connection terminal portions on the side face or on the side face and the bottom face of the package, and is joined with the circuit board by soldering via the connection terminal portion. Furthermore, the shape of the solder is optimized by defining the relative position relation between the end of an electrode on the central side of the LED package on the bottom face of an LED package body and the end of a component mounting pad on the circuit board.

Disclosed is a nickel powder having excellent crystallinity and a high shrink temperature, inhibiting sintering contraction even at high temperatures without affecting the decomposition temperature of the resin binder. Also provided is a production method for the nickel powder. The average particle diameter of the nickel powder is 0.05 - 0.3[Mu]m, crystalline diameter is 60% - 90% of specific surface area diameter, sulphur content is 0.1% - 0.5% by weight, and oxygen content is 0.4% - 1.5% by weight. The powder has a 2 - 15nm thick oxygen-containing surface coating layer with an outermost surface formed from a mixture of a nickel-sulphur compound and a nickel-oxygen compound. Furthermore, in x-ray photoelectron spectroscopy analysis, the outermost layer should preferably have an abundance ratio of 50% - 100% nickel sulphide in the sulphur compound and an abundance ratio of 0% - 50% of nickel hydroxide in the nickel-oxygen compound.

The invention provides a downloading method of MAC addresses. The downloading method comprises the following steps: generating an MAC configuration file; generating an MAC address file, wherein the MAC address file consists of multiple specific SNs and MAC addresses; printing, by a server, each SN into a QR code, and sticking the QR codes to terminals of corresponding types; looking up, by the server, the MAC address file according to a rule, so as to obtain the MAC addresses corresponding to the SNs, and after the uniqueness and the effectiveness of the MAC addresses are verified, downloading the MAC addresses to the terminals. The downloading method has the advantages that the downloading method for the SNs and the MAC addresses is simplified; the server is configured to automatically judge the effectiveness and the uniqueness of the SNs and the MAC addresses, so that mistakes caused by a manual judgment procedure are reduced, and MAC fool proofing is effectively realized, namely the problems of repeat, non-continuity and the like of the MAC addresses are prevented, and the uniqueness of the SNs and the MAC addresses of factory terminals is guaranteed.

The invention discloses a system and a method for continuously measuring postures of a rigid bracket (100) at a gravity field by utilizing a two-axis gyroscope as well as a system and a method for measuring a wellbore track of an oil well. The system for continuously measuring the postures by utilizing the two-axis gyroscope comprises a gyroscope sensor (200), an accelerometer (300) and a calculation unit (500). According to the systems and the methods disclosed by the invention, the defects that a gyroscope point measurement operation is complicated and wastes time are overcome, and the disadvantages of continuous measurement of a three-axis gyroscope that the outer diameter is great and the hardware cost is high are avoided; the continuous measurement of the oil field track in a moving process of the rigid bracket (100) can be realized; and the well logging time is shortened, the well logging efficiency is improved and the manufacturing cost of hardware is reduced.

An offset module (130) or navigation positioning estimator (57) determines a reference frame bias between precise point positioning (PPP) reference frame and an RTK reference frame, where the PPP reference frame is associated with relative position estimates generated by the relative position estimator (124) and where the RTK reference frame is associated RTK position estimates generated by the RTK position estimator (122). Upon loss of the RTK correction signal, the navigation positioning estimator (57) or controller switches to a relative position mode based a last available RTK position. The relative position estimator (124) determines an estimated relative position based on time-differenced phase measurements by the mobile receiver (12, 30) in the relative position mode. The relative position estimator (124) or offset module (130) offsets the estimated relative position in the relative position mode.

The invention discloses a heat transfer printing method on an object surface. The method comprises the following steps of: cutting and sewing or enclosing a transfer sheet into a tubular shape to cover an object surface; then, applying pressure on the whole object surface and tightly attaching the transfer sheet to the object surface in vacuum; and heating and baking to transfer patterns on the transfer sheet to the object surface. The invention can tightly attach the transfer sheet to the object surface and avoid staggering or breaking transferring patterns, is not limited by object surface shapes and can transfer patterns on an object in any shape or size.

The invention relates to a multitube pulse detonation combustion chamber communicated with a jet deflector, mainly comprising at least two detonation units, at least one detonation jet deflector and at least one ignition detonating device. Each detonation unit comprises a detonation unit shell and a detonation unit internal cavity, wherein the detonation unit internal cavity mainly comprises a detonation chamber inlet, a detonation chamber and a downstream detonation chamber outlet which are communicated; each detonation jet deflector mainly comprises a detonation jet deflector shell, a detonation jet deflector internal cavity, at least two communicating pipes respectively communicated with the detonation jet deflector internal cavities and at least one propelling agent inlet positioned in the detonation jet deflector; and the detonation jet deflector can temporarily store and transfer a certain quantity of the propelling agent and can also forcibly and alternately complete the propelling agent refilling and dopping and the detonating process of the detonation units by utilizing energy and a substance which are generated by detonation burning. The invention can ensure stable working performance of a pulse detonation motor and improve the cycle efficiency of the pulse detonation motor.

Disclosed is a method for D2D device discovery. The method comprises: a source D2D device determines whether the coverage of a network exists at present, if so, sends a request for discovering an adjacent D2D device, receives wireless resource information, sends bulletin information according to the wireless resource information and monitors response information; and if not, sends bulletin information according to preset wireless resource information in the device and monitors response information. Also disclosed is a system and apparatus for D2D device discovery. The present invention can realize discovery between D2D devices, reduce power consumption of a D2D device, and improve discovery efficiency of a D2D device.

The invention discloses a two-workstation polycrystalline diamond compact polisher and solves the problem that existing polishers are unreliable in polishing quality and low in polishing efficiency due to unreasonable structure. The polisher comprises a polishing wheel base and a polycrystalline diamond compact clamp seat, a polishing wheel set is arranged in the polishing wheel base and comprisesa driving shell fixedly connected with the polishing wheel base, a plurality of eccentric shafts are arranged on the bottom side of the driving shell, the eccentric shafts are in transmission connection through an eccentric shaft seat, a polishing wheel driving shaft in planet motion is arranged in the eccentric shaft seat, a polishing wheel is fixedly arranged at the upper end of the polishing wheel driving shaft, a waterproof cooling shell is arranged on the periphery of the polishing wheel, a labyrinth sealing structure is arranged between the waterproof cooling shell and the polishing wheel, a closed circulating cooling cavity is formed between the waterproof cooling shell and the polishing wheel, and the polycrystalline diamond compact clamp seat has multiple degrees of freedom. Thetwo-workstation polycrystalline diamond compact polisher is novel in structure and convenient and reliable in polishing and has good popularization and application prospect.

The invention relates to a continuous preparation method of biodiesel, which uses waste animal and vegetable grease as the raw material and mainly comprises the following steps: (1) removing impurities and moisture in the raw material; (2) performing continuous esterification reaction in a cation exchange resin fixed bed reactor; (3) separating the esterification product; and (4) performing continuous ester exchange reaction and separation in an anion exchange resin fixed bed reactor. The invention overcomes the problems of severe equipment corrosion, difficult product separation, serious environmental pollution caused by waste acid liquid, failure to realize continuous preparation and the like in the homogeneous catalysis process, is low in cost, high in yield and friendly to environment, and has important market application prospects.

The invention proposes a ball grinding-diameter shrinkage reciprocating extruding method for circular curing of waste titanium chips. The method comprises the following steps: (1) the titanium chips are recovered and preheated; (2) the ball grinding is performed for the titanium chips; (3) the titanium chips are covered and packed; (4) the covered and packed titanium chips are coldly extruded at room temperature; (5) diameter shrinkage reciprocating extrusion high-temperature curing: a mold is heated to reach 570-600 DEG C; an upper punch applies the extruding force of 0.9-1.0 GPa; a lower punch applies the back pressure of -200 MPa; in the same pair of reciprocating extrusion molds, the room-temperature cold extruded titanium chips perform the diameter shrinkage extrusion, the ejection, the compression upsetting and the secondary diameter shrinkage extrusion deformation; and (6) quenching: massive titanium obtained in the diameter shrinkage reciprocating extrusion step is quenched and cooled to reach the room temperature through a water cooling mode. Through ball milling, oxides on the surfaces of the chips are totally crushed under collision and grinding of steel balls; and on the basis, the high-temperature extrusion curing is performed to cure the titanium chips as large-size massive titanium.

The invention provides an ultra-narrow gap TIG (tungsten inert gas) hot wire welding method. The method comprises steps as follows: S1, a groove of a window plate test plate is subjected to machining and assembly work before welding; S2, the window plate test plate is preheated; S3, backing-welding weld bead configuration for the ultra-narrow gap TIG hot wire welding is performed; S4, backing welding parameters are set, and backing welding is performed. According to the ultra-narrow gap TIG hot wire welding method, the problem that the backing welding is difficult and consumes long time during ultra-narrow gap TIG hot wire welding of the window plate is emphatically solved, and the welding defects of incomplete side wall fusion, discontinuity of weld beads, poor weld seam formation and the like generated in the welding process easily are overcome. Therefore, high-efficiency and high-quality ultra-narrow gap backing welding of the window plate is realized; the welding quality and the welding efficiency are improved, the working environment is improved, the preheating frequency is reduced, the production cost is reduced, and high use value and economic benefits are achieved.