2748results about How to "Strong process controllability" patented technology

The invention discloses a preparation method of titanium alloy bars. The finished titanium alloy bars are prepared through the following steps: heating prepared TC4-DT titanium alloy ingots to 1150 to 1200 DEG C; cogging and forging a beta phase zone of the ingots with a fast forging press; heating forging stocks to Tbeta-50 to Tbeta-20 DEG C through a resistance furnace; carrying out repeated upsetting and extension forging by the fast forging press; forging forged stocks to required dimensions at a forging temperature of Tbeta-70 to Tbeta-40 DEG C to obtain titanium alloy bars with uniform tissues; and carrying out duplex annealing on the obtained titanium alloy bars with the uniform tissues. The preparation method has the advantages of convenient operation, strong controllable technology, high stability of batches of prepared bars, and good repeatability. The titanium alloy bars prepared through the method of the present invention has the advantages of strong plasticity, qualified macrostructure, high strength and fracture toughness, and low fatigue crack growth rate.

The invention relates to a method for preparing a metal organic frame supported film. The method comprises the following steps of: reacting a metal source provided by an inorganic supporting body with an organic ligand so as to generate a layer of crystal seeds on the surface of the supporting body; and preparing a continuous film layer through a secondary reaction. The method integrates a synthetic process and a coating process of the crystal seeds, and the crystal seeds generated through an in-situ chemical reaction are evenly distributed on the surface of the supporting body and have strong bonding force with the supporting body, and thus, a metal organic frame supported film with good integrity and high stability can be prepared successfully. The method can effectively solve the problem that a metal organic frame material can hardly form a film on the inorganic supporting body. The filming method of the invention has important meaning to the mass preparation and the practical application of the metal organic frame supported film.

The invention relates to a high-voltage mono-crystal lithium nickel cobalt manganese oxide anode material and a preparation method thereof. The molecular formula of the anode material is LiNixCoyMn1-x-yMzO2, wherein M is one or more of Ti, Mg, Al, Zr, La, Ce, B and Sn, and the values of x, y and z meet the conditions as below simultaneously: 0<=x<=1, 0<=y<=0.3, and 0<=z<=0.8. The prepared high-voltage LiNixCoyMn1-x-yMzO2 is made up of micron-sized mono-crystal particles, and the average size of the mono-crystal particles is 2 to 15 microns. The LiNixCoyMn1-x-yMzO2 anode material has the advantages of high electrochemical property, high compaction density, good property of processing pole pieces, good high/low-temperature circulating property and rate capability, good high-temperature storage property and safety property and wide voltage application range of 4.35V to 4.6V, and the anode material can be used in the CE and EV markets widely.

The invention discloses a method for preparing a carbon nanofiber-based non-noble-metal catalyst through oxidation improved electrostatic spinning in the technical field of carbon nanofibers and fuel cell catalysts. The method disclosed by the invention comprises the following steps: dissolving at least one transition metal salt and polyacrylonitrile in a solvent to form a precursor solution; carrying out electrostatic spinning on the precursor solution under certain parameter conditions to obtain iron-containing polyacrylonitrile nanofibers; and heat treating the iron-containing polyacrylonitrile nanofibers in an atmosphere containing a small amount of oxidizing gas to obtain carbon nanofibers containing transition metal and nitrogen element and improved by the small amount of oxidizing gas. According to the method, the cost of the raw materials is low, the operation is convenient and controllable, the operation is easy, the surface structure of the catalyst can be regulated and controlled, and the prepared oxidation improved carbon nanofiber based non-noble-metal catalyst has good catalytic activity on oxygen reduction reaction. The whole preparation process can be combined with a traditional carbon fiber technique, and the method has a prospect that large scale and industrialization of the non-noble metal catalyst can be realized.

The present invention belongs to rapid molding field of technology, which especially relates to a rapid shaping method and a device of metal. Inert gas used by the present invention is bled into a crucible and a vacuum tight chamber that can obtain steady differential pressure by means of pressure control system, which makes mental fusant ejected in the form of laminar jet from a micro-nozzle that is positioned on a bottom of the crucible. Vibration disturbance mental shooting flow produced by a piezoelectric oscillator turns metal shooting flow into uniform droplets. And real-time size parameters of the droplets mentioned-above can be obtained by monitoring system and computer analysis system. Subject to the size parameters of part that are input in advance, micro-computer control system has the real-time control for electrical field parameters of a deflexion polar plate, thus, controlling flight profile of the metal droplets and manufacturing metal parts with good quality in cooperation with a three-dimensional control station. The present invention is able to directly turn liquid metal into close-finished metal parts that are provided with rapid coagulation and delicate structure. The present invention has short technological process and products have good quality, which greatly reduces equipment investments.

The invention provides a self-pressurized high-speed polishing method for the inner surface of a hole by means of abrasive particles and a magnetic flow. According to the method, the abrasive particles are coated with and restrained on the inner surface of the hole of a workpiece by the aid of ferromagnetic particles in a magnetorheological polishing fluid, which flows at a high speed, under the effect of a magnetic field produced by moving magnetic bodies, a flexible polishing abrasive brush flowing at a high speed is formed and reciprocates to rub against the inner surface of the hole of the machined workpiece to remove burrs and reduce the roughness of the inner surface of the hole, and burr removal and deterministic polishing are realized for various types of inner surfaces of holes. The invention further provides a self-pressurized high-speed polishing device for the inner surface of the hole by means of the abrasive particles and the magnetic flow. The device comprises a polishing mechanism, the magnetic bodies, a clamping mechanism, a sliding guide rail and a driving motor, wherein the driving motor drives the magnetic bodies to enable the polishing fluid to reciprocate in the hole at the high speed for polishing. The method and the device can solve problems that special holes are difficult to polish and the polishing efficiency is low, and have the advantages of high precision, high machining efficiency, low damage and low cost.

Provided is a making method of a tunable semiconductor laser and a tunable semiconductor laser, wherein the making method comprises the following procedures: growing lower waveguide layer, multiple quantum trap structure, upper waveguide layer and indium phosphide layer epitaxially and sequentially on the n type substrate; growing earth silicon dielectric membrane on the epitaxial layer; dividing into active waveguide region and raster region; butting passive waveguide portion; removing earth silicon dielectric membrane and indium phosphide layer on the surface of the active waveguide region; growing ridge waveguide indium phosphide material and low resistivity InGaAs ternary layer sequentially; growing earth silicon dielectric membrane; making raster graphic of the ridge waveguide and the ridge waveguide on the raster region; etching raster of the ridge waveguide and the ridge waveguide on the raster region; growing earth silicon dielectric membrane continuously; opening the window separately on active waveguide region and raster region in order to make electrode isolation ditch; making P face and N face electrode of laser. The invention has good product property and high automation degree of the product making, which simplifies the technology process and has good product ratio.

The invention provides a nitrogenous niobium vanadium microalloying 500MPa and 550MPa high-intensity aseismic reinforcing steel bar and a melting method. The high-intensity aseismic reinforcing steel bar comprises the following ingredients in percentage by mass: 0.20 to 0.25 wt percent of C, 0.35 to 0.55 wt percent of Si, 1.35 to 1.58 wt percent of Mn, 0.013 to 0.025 wt percent of V, 0.019 to 0.032 wt percent of Nb, 0.065 to 0.085 wt percent of N, at most 0.040 wt percent of S, at most 0.040 wt percent of P and the balance Fe and unavoidable impurities. The reinforcement effect of microalloy V and Nb is sufficiently exerted through increasing the N and decreasing the V and the Nb, the addition of the ferrocolumbium and vanadium nitrogen alloy is reduced, and the addition of noble alloy issaved. Compared with the traditional vanadium nitrogen alloy microalloying 500MPa high-intensity reinforcing steel bar , the nitrogenous niobium vanadium microalloying 500MPa and 550MPa high-intensity aseismic reinforcing steel bar provided by the invention has the advantages that the alloying cost of the process is reduced by 65 to 75 Yuan/t steel over the same periods, the economic benefit is obvious, the process production cost is low, the applicability and the controllability are high, the produced 500MPa and 550MPa high-intensity reinforcing steel bar is widely applicable to highrise andlarge-scale constructional engineering, and the aseismic performance and the welding performance of the reinforcing steel bar are good.

The invention relates to an ultraviolet detector, in particular to a visible-blind ultraviolet detector based on a Beta-Ga2O3/SiC heterojunction thin film and a fabrication method of the visible-blind ultraviolet detector. According to the fabrication method, a layer of Beta-Ga2O3 thin film is deposited on an n-type 6H-SiC substrate by a laser molecular beam epitaxial technique, and then a layer of Ti/Au thin film is deposited on the n-type 6H-SiC substrate and the Beta-Ga2O3 thin film through a mask by a radio frequency magnetron sputtering to be used as an electrode. The fabricated visible-blind ultraviolet detector has the advantages of stable performance, response sensitivity, small dark current and high potential application; and moreover, the fabrication method has the characteristics of high process controllability, simplicity in operation, high universality, restorability of repeated test and the like, and has great application prospect.

The invention relates to an automatic stringer which comprises a power transmission device, an automatic meat slicing device with a propelling automatic meat locking box, a knurling tool meat cutting device, a shearing and feeding device and an automatic prod punching device, wherein the device integrates slicing, slitting, bar-cutting and prod-stringing, so that the production efficiency is improved, automation and multi-functionalization can be further realized, the automatic stringer is multipurpose, and the consumption of manpower and material resources as well as financial resources is greatly reduced. The automatic stringer not only can string meat, but also can string various foods such as balls and the like. Moreover, meat in different thicknesses and different sizes can be stringed. The mechanical degree and the production efficiency are improved, and the automatic stringer is easy to operate and maintain, low in cost, small in size and high in degree of automation.

The invention provides a short text classification method based on CHI and a classified association rule algorithm. The frequencies of frequent word sets of different types of texts are measured, a category frequent factor (LFF) is introduced, the minimum support threshold values of text categories are reasonably allocated through the LFF, the phenomenon that frequent word set categories mined by adopting a traditional FP-Growth algorithm are deflective is avoided, meanwhile category tendency judgment is conducted on the frequent word sets, a CHI checking algorithm is adopted to measure the relevance degree of characteristic words and the categories instead of measurement based on simple word frequency statistics, the step that best parameters are determined through manual parameter setting and experiments is omitted, and the controllability of a classification system is enhanced. In addition, the invention further provides a parallel characteristic extension short text classification algorithm based on a Hadoop/MapReduce big data computing platform. MapReduce parallelization design is conducted on a category frequent factor calculating and characteristic extension method, the short text classification accuracy rate and classification efficiency are improved, and the controllability of the system is improved.

The invention discloses an AC/DC (Alternating Current/Direct Current) hybrid modularized microgrid network structure based on hybrid energy storage and a networking method of the structure. The AC/DC hybrid modularized microgrid network structure based on hybrid energy storage is characterized in that a back-to-back converter is connected in parallel to a grid-side converter and a microgrid-side converter by use of a DC bus, the AC side of the grid-side converter is connected to a large power grid orderly through a filter circuit and an isolation transformer, and the three-phase AC output end of the microgrid-side converter serves as an AC bus via an LC filter circuit. The AC/DC hybrid modularized microgrid network structure based on hybrid energy storage has the advantages that the modularized packaging of loads of a plurality of types and distributed power sources of a plurality of types in the AC/DC hybrid microgrid is realized and the modularized microgrid initiatively joins in the dispatching operation of the large power grid as an independently controllable power source/load unit, and moreover, due to reasonable design of the hybrid energy storage system structure and the connection manner thereof, seamless switching of two modes of grid connection and island becomes the natural attribute of the modularized microgrid without complex control algorithm.

The invention relates to an electronic payment system and a remote-based or near-field-based payment method. The electronic payment system comprises a remote payment subsystem and a near-field payment subsystem, each of the subsystem comprises a payment card, a payment terminal, a collection card, a collection terminal, a payment server and a collection server. According to the remote-based payment method, remote payment can be achieved through a bound remote payment account, the payment terminal, the payment card and payment passwords, remote payment collection can be achieved through a bound remote collection account, the collection terminal and the collection card, and the payment server receives payment amount and the payment passwords. According to the near-field-based payment method, near-field payment can be achieved through a bound near-field payment account, the payment terminal and the payment card, near-field payment collection can be achieved through a bound near-field collection account, the collection terminal and the collection card, the payment information of the payment terminal and the payment information of the payment card are mutually backed up, and the collection information of the collection terminal and the collection information of the collection card are mutually backed up.

The invention provides a processing method of dynamic data of an embedded browser. A JavaScript engine of the browser is used in a web page for expanding a non-standard JavaScript method for calling back a dynamic data acquisition module; acquisition of dynamic data is specifically realized in the dynamic data acquisition module in an application procedure; layout is carried out on the dynamic data in the web page for realizing the combination of the dynamic data with the web page, and the browser analyzes the layout of the web page for completing the layout and display of the dynamic data. The method carries out the interaction by the related method of calling the JavaScript engine for expansion in the web page, the callback way and the dynamic data acquisition module of the application procedure which is independent out of the browser, realizes the acquisition of the dynamic data and determines the display form; and the layout of the dynamic data is completed by the independent layout in the web page, and the management of the browser is carried out by the browser without the need of external application procedure for intervention, thereby being capable of separating the data acquisition of the browser, the layout and the display, reducing the coupling degree of the browser with the external application procedure and simplifying the complexity.

The invention discloses a correcting method for high speed railway ballastless track subgrade in a soft soil area. The correcting method comprises the following steps that 1, when the lateral displacement of the high speed railway embankment occurs , a deformation groove and a plurality of stress relief apertures are formed in an asymmetrical load region, the deformation groove is filled with rigid foam, and the stress relief apertures are filled with grits and rubbles; 2, a first row jet-grouting pile is arranged in a second soft stratum area, the instantaneous injection pressure generated by the construction of the first row jet-grouting pile is utilized to drive a pile foundation reinforcement area located at the bottom of the high speed railway embankment to conduct the displacement from the second soft stratum area to a first soft stratum area, the pile foundation reinforcement area drives a subgrade reinforcement bed course located above the pile foundation reinforcement area and the high speed railway embankment to move simultaneously, and the correcting for the high speed railway subgrade is achieved; 3, the deformation groove is densely filled with the rubbles plus 5% of cement. An acting force is applied on subgrade deeps, the subgrade drives the subgrade body to conduct a movement, so that the purpose of correcting the lateral displacement of the subgrade is achieved.

The invention, belonging to the field of dispatching and management of a distribution network, provides a method and system for switching a microgrid between an island mode and a grid connected mode. When an external electric network has a fault, distributed power in a microgrid system is cut off, a grid connected contact breaker of the microgrid system and the external electric network is opened, a voltage and a frequency of the microgrid system are regenerated by a main power switching control mode in the microgrid system, and the microgrid system works independently; and when the external electric network returns to normal, if the electric network side voltage of the grid connected contact breaker is monitored to be normal and is lasted for a certain time, operations of a fan, a photovoltaic power generation system and an energy storage system of a storage battery are stopped, the grid connected contact breaker of the microgrid system is closed, a load is powered with the external electric network, the devices such as the fan and the like are reconnected to the grid for operation, so that a stable operation of the microgrid system in a transient state process of switching between the island mode and the grid connected mode is satisfied, the transient time is shortened, and the requirements of the microgrid system in safety, reliability and quick response are satisfied. The method and system have the characteristics of quickness, stability and reliability.

The invention discloses an ejecting-type jet flow cavitation generator and a cavitation cell disruption device. The cavitation generator comprises a nozzle, a suction chamber, a throat pipe, a diffuser and an outlet pipe. The nozzle is connected in the suction chamber in a sleeved manner, and a suction pipe is arranged on the side of the suction chamber. The cavitation cell disruption device comprises a container, a high-pressure centrifugal pump and the above cavitation generator, wherein the container is used for storing cells to be disrupted, the high-pressure centrifugal pump is connected with the container through a water pipe, and the cavitation generator is connected with the high-pressure centrifugal pump through the pipe. Valves are respectively arranged on an entrance of the nozzle, the suction pipe and the outlet pipe to control degree of cavitation. In the cavitation cell disruption device, high-pressure liquid sucks up low-pressure liquid to cause cavitation to happen in the tail end of the suction chamber and the throat pipe, cells are disrupted by microjet and shock waves produced from bubble collapse, and drastic shearing actions between the other two fluids can also have tearing effect to the cells. The ejecting-type jet flow cavitation generator and the cell disruption device for cavitation cells are simple in structure, low in cost, free of moving components, reliable in operating, strong in cavitation transport, high in crushing efficiency, and thereby applicable to mass application.

The invention relates to equipment for producing reconstituted tobacco through a dry-method paper making method. The equipment comprises a fiber decomposing device, a basal piece forming device, a pulp spraying device and a drying device. The production equipment is provided with various types of material ports and a built-in pipeline humidifying device, and a multi-pipeline feeding mode is adopted to enable the feeding uniformity and controllability to be improved; sprayed pulp contains much tobacco powder, tobacco extracts and adhesives and is large in viscosity; through the equipment, the pulp can be fully dispersed, and the phenomenon that hot air flowing in a drying oven is distributed unevenly to cause the pulp to be partially over-dried can be avoided.

The invention discloses a method for repairing a fused quartz optical damage component, which belongs to the technical field of the optical material and the optical component, in particular to a method for repairing and processing laser damage of a fused quartz optical component. The method comprises the following steps: firstly adopting infrared carbon dioxide laser to carry out laser fusion repair on the damage part of the fused quartz optical damage component; and then carrying out annealing treatment on the fused quartz optical damage component subjected to laser fusion repair. The method can carry out complete repair on the fused quartz optical damage component and eliminate residual stress caused by the laser fusion repairing process. The fused quartz optical component repaired by the method can revert to the state of the ideal fused quartz optical component. And the method also can inhibit the increase of the damage points of the fused quartz optical component. The method can prolong the service life of the fused quartz optical component, greatly reduces operation cost and has the characteristics of strong process controllability, high repetitiveness and stable performance.

The embodiment of the invention discloses a service filtering method and device based on a default bearer. By applying the technical scheme of the embodiment of the invention, a PGW (packet data network gateway) is used for configuring the corresponding TFT (traffic flow template) rules for the default bearer according to APN (access point name) information, and services on the default bearer are filtered according to the TFT rules, so that the corresponding service flows, such as the service flow of the services with the lower added value, can be filtered out according to the corresponding rules, the management, the control and the optimization of the services on the default bearer can be realized, an operator can perform the flexible management and the control on the services of different users, which are connected into a PDN (packet data network) and the controllability of the PGW to the network as a core network interface can be improved.

The invention discloses a piezoelectric cantilever vibration energy harvester and a preparation method thereof, belonging to the technical field of micro electro mechanical system (MEM). The harvester comprises an upper cantilever, a lower cantilever, a mass block and a fixing device, wherein the mass block is arranged at one end of the lower cantilever, and the fixing device is fixed at the other end of the lower cantilever; the upper cantilever is arranged on the mass block and the fixing device and is symmetrical with the lower cantilever; the mass block and the fixing device are respectively and fixedly connected with the upper cantilever; distance from the fixing device to the mass block is L; the upper cantilever comprises a first support layer, a first lower electrode layer, a first upper electrode layer and a first PZT layer; the lower cantilever comprises a second support layer, a second layer electrode layer, a second upper electrode layer and a second PTZ layer; and the support layer comprises a first SiO2 layer, an Si layer and a second SiO2 layer. The invention improves mechanical transformation ability, can collect more electrical energy from mechanical vibration, has controllable preparation method and improves the production success rate of the devices.