37results about How to "Solve large-scale" patented technology

The invention relates to a method for preparing superfine calcium carbonate by adopting glycine as a dissolving agent, a modifying agent and an acid-binding agent, extracting effective calcium from calcium sources, such as carbide slag or lime, and the like and charging carbon dioxide into a reactor for calcifying, filtering and washing and application of the superfine calcium carbonate to paper making, paint production, and the like.

The invention discloses a hierarchical structure applied to a distributed search engine. The hierarchical structure comprises a physical layer, an abstract layer, an application layer and a presentation layer. The invention also discloses a distributed search engine system, which comprises a Web server, an agent node, a query agent pool, an abstract adapter and a plurality of working nodes, wherein the query agent pool consists of a plurality of query nodes. The invention also discloses an implement method for the distributed search engine system, which comprises the following steps of: S1, registration of a query node; S2, registration of working nodes; S3, state update of the nodes; and S4, distribution and retrieval of a query request. The hierarchical structure has the advantages of good performance, high reliability, diversification, specialization, strong applicability and the like.

The invention discloses a web service combination method based on depth reinforcement learning for overcoming the problems of long time consumption, poor flexibility and non-ideal combination effect of the traditional service combination method in large-scale service scenes. The depth reinforcement learning technology and the heuristic thought are applied to the service combination problem. In addition, by considering the partial observability of the real environment, the service combination process is converted into a partially-observable Markov decision process POMDP, the solution problem of the POMDP is solved by using a recurrent neural network, and the method still expresses high efficiency encountering the challenge of curse of dimensionality. By adoption of the method provided by the invention, the solution speed can be effectively improved, the dynamic service combination environment is automatically adapted on the basis of ensuring the quality of the service combination scheme, and the adaptability and the flexibility of the service combination efficiency is effectively improved in a large-scale dynamic service combination scene.

The invention discloses a CT (Computed Tomography) image reconstruction method based on a variational inequality at a sparse sampling angle. The CT image reconstruction method comprises the following steps: (1) carrying out equal-angle interval projection scanning within an angle range of 0-180 degrees by aiming at a fan-beam CT to obtain spare projection data y, wherein an angle interval in a projection direction is between 2 and 6 degrees; (2) calculating a projection matrix A through an X-ray source, a detector and the position information of an object to be reconstructed; (3) according to the projection data y obtained in the step (1) and the projection matrix A obtained in the step (2), simultaneously introducing the sparsity and the non-negativity of an image gradient to serve as priori knowledge to obtain a reconstruction model of an image reconstruction problem at the sparse sampling angle; (4) converting the reconstruction model in the step (3) into a variational inequality form; and (5) solving the variational inequality in the step (4) to obtain a reconstructed image. On the premise that image reconstruction quality is guaranteed, reconstruction convergence speed can be quickened, and single-iteration time is shortened.

The invention relates to a very large scale integration (VLSI) standard unit overall arranging method based on an L1 form model and belongs to the technical field of VLSI physical design automation. The method includes indicating a circuit as a super graph, modeling a VLSI standard unit overall arranging problem which adopts semi-cycle long-line calculation with the density constrained to be non-smooth into an L1 form minimum problem, adopting an optimum selection clustering algorithm applicable to modification of an L1 form model in a clustering stage to conduct clustering on a unit and conducting declustering on clusters in a declustering stage by adopting a nonlinear planning overall arranging method. The VLSI standard unit overall arranging method is reasonable in arrangement, high in efficiency, practical and good in arranging effect.

The invention discloses a forging method for an elliptical seal head of a CAP1400 steam generator. The forging method comprises the steps of 1) manufacturing a blank; 2) heating; 3) assembling a die; 4) preforming; 5) stamping. By adopting the forging method, when the elliptical seal head with ultra-large size cannot be directly forged, firstly a circular plate blank with smaller diameter is preformed through a forging method of rotary drawing to increase the arc length of a workpiece and form an enough large circular-arc-shaped blank, and then the blank is stamped as a whole body to meet the requirement on the final size of the ultra-large size elliptical seal head. Therefore, the forging method for the elliptical seal head of the CAP1400 steam generator can effectively solve the problem that the large-sized and integrated forged piece of the elliptical seal head of the CAP1400 steam generator is difficult to manufacture.

The invention discloses a rare earth fused-salt electrolysis cell for producing rare earth metals and alloys by using a liquid cathode. The rare earth fused-salt electrolysis cell mainly comprises an electrolysis cell body, an anode and the liquid cathode; the anode and the cathode are provided with horizontal planes parallel to and facing each other; the anode is vertically inserted in the electrolysis cell body; the liquid cathode is a liquid metal electrolyzed at the bottom; a tungsten plate is inlaid in the internal bottom of the electrolysis cell body; a molybdenum plate or a niobium plate can be taken as a cathode bottom plate or a rare earth metal catcher for an electrolytic product separated out on the cathode. The rare earth fused-salt electrolysis cell for producing rare earth metals and alloys by using the liquid cathode has the advantages of high current efficiency, low radiant heat losses, high anode utilization rate, long electrolysis cell service life and low investment of the electrolysis cell body; the single plant capacity can reach above 100 KA, the energy consumption per unit product is greatly reduced, and produced products are stable in quality, low in production cost and relatively closed.

The invention discloses a high-altitude tower embedded type vertical type wind power generation system which comprises a high-altitude tower, a global position system (GPS) time service generator excitation grid-connection control system and a vertical type wind power generation system. The vertical type wind power generation system is arranged on the high-altitude tower, a GPS timing excitation grid-connection control mode is used, a GPS time service timer controls an excitation grid-connection control system which controls a wind-collect system and a vertical type generator excitation control system respectively, and a patulous angle of a wind-collect plate is controlled so that supply air rate of a wind power generator, generator speed and amplitude frequency and phase of voltage waveform output by the generator are adjusted. The high-altitude tower embedded type vertical type wind power generation system is small in size, easy to mount and repair, stable in operation performance, high in anti-storm ability, good in power-generation quality and performance, suitable for a high-altitude signal-radiation tower, a high voltage transmission tower and other high-altitude frames which can be used as frames for a vertical wind power generator and fit for power-generation and application in various climates and geographical conditions.

The invention relates to the field of roasting kilns and in particular relates to a sleeve type double-hearth shaft kiln. The sleeve type double-hearth shaft kiln is characterized in that inner sleeves are respectively arranged at the centers of two kiln hearths; the upper ends of the inner sleeves are hinged to the upper sides of the kiln hearths; the end sockets of axial positioning clamps are hinged to kiln hearth shells; the inner sleeves are of steel structure bodies from bottom to top; protection covers made of fireproof materials are built outside the inner sleeves; air channels are formed in the inner sleeves; the specification and the size of the shaft kiln are only related to a regional area of an annular section; basically, heights of a preheating region, a roasting region and the like of the kiln body are not changed along with the change of the specification of the kiln. Compared with the prior art, the sleeve type double-hearth shaft kiln disclosed by the invention has the beneficial effects that the resistance loss of the kiln body is low, the phenomenon that heat cannot be distributed uniformly in a roasting process is improved, the quality of a product is high, electric energy can be saved, and the problem in large sizes of lime and dolomite double-hearth shaft kilns is solved; the sleeve type double-hearth shaft kiln is suitable for new construction, reconstruction and extension and the technical design of the conventional kiln with the daily yield being more than 600 tons and even the daily yield being more than thousands of tons.

The invention provides a multi-target flexible job shop scheduling method, which comprises the following steps of: S10, establishing a mathematical model, generating a corresponding model according to the number of workpieces and the number of equipment, and defining three targets of minimum maximum completion time, minimum load value of a maximum load machine and minimum total machine load at the same time; S20, setting related parameters for processing the flexible workshop scheduling problem; S30, randomly initializing a population, carrying out non-dominated sorting, and initializing a rank value of each individual; and S40, solving the mathematical model by adopting an NSGA-II algorithm to obtain a scheduling optimal solution. The multi-target mathematical model is set, the corresponding parameters are set, the NSGA-II algorithm is adopted to solve the optimal solution of the mathematical model, and production scheduling can be completed through simple and convenient operation while the actual production requirements of enterprises are met.

The invention discloses a novel industrial fluidized bed reactor adopting the inorganic thermal superconducting technology.The novel industrial fluidized bed reactor comprises a barrel body and one or more inorganic thermal superconducting pipes arranged in the barrel body; the barrel body is separated into a thermal insulation area, a heat exchange area and a reaction area from top to bottom through an upper partition plate and a lower partition plate; each inorganic thermal superconducting pipe is internally provided with a casing pipe, a cavity between each casing pipe and the corresponding inorganic thermal superconducting pipe is filled with an inorganic thermal superconducting working medium, each internally-arranged casing pipe comprises an internally-arranged electrical heating pipe on the lower portion and a lead-out wire protective pipe on the upper portion, and the two ends of each inorganic thermal superconducting pipe extend into the thermal insulation area and the reaction area respectively.By means of the novel industrial fluidized bed reactor, the structural form of an existing industrial fluidized bed is changed completely, and the novel industrial fluidized bed reactor had the advantages that a cold medium (or a heat medium) is isolated from the reaction area, heating and heat obtaining are integrated, the structure is simple, maintenance is convenient to conduct, heat transfer efficiency is high, temperature uniformity inside a bed is good, operation safety is high, and the applicable temperature range is wide.

The invention discloses a photoelectric integrated power supply and a preparation method thereof. A magnetron sputtering method is adopted to prepare a photoelectric integrated thin film power supplysystem. The power supply comprises a thin film substrate, a lithium-ion thin film battery arranged on one surface of the thin film substrate in a composite mode and a solar battery arranged on the other surface of the thin film substrate in a composite mode; and a cathode material layer and a light absorption layer are made of a silicon-based material or at least one of sulfide, oxide and selenium-based matter of at least one of copper, zinc, titanium, iron and tin. Through the design method, the defects of large scale, low efficiency and the like, caused by the situation that traditionally anexternal circuit is used to connect a solar battery and a lithium-ion battery, are overcome, and the energy efficiency and portability of the power supply system can be greatly improved. Meanwhile, by use of an electrode material, integrated application of the material is realized; and through the application mode, in the heat treatment process of a thin film made of the same substance, high crystallinity of the substance under the same temperature can be guaranteed, electrochemical properties of the material are improved, and battery conversion efficiency is improved.