1240results about How to "Creative" patented technology

The invention discloses a manufacturing method of a multilayer shell-core composite structural part, which comprises the following steps of: (1) respectively preparing feed for injection forming of a core layer, a transition layer and a shell layer, wherein powder in the feed of the core layer and the powder in the feed of the shell layer are selected from one or a mixture of some of metal powder, ceramic powder, or toughened ceramic powder and are different from each other, and the powder in the feed of the transition layer is gradient composite powder; (2) respectively manufacturing blanks of the multilayer shell-core composite structural part layer by layer with a powder injection forming method; (3) degreasing the blanks; and (4) sintering the blanks to obtain the multilayer shell-core composite structural part. The multilayer shell-core composite structural part is manufactured with the powder injection forming method, and has the advantages of high surface hardness, abrasion resistance, uniform thickness of the shell layer, stable and persistent performance, strong binding force between the shell layer and the core layer due to the transition layer, good integral bending strength and good impact toughness and is difficult to crack.

A method for preparing magnetic biochar from straw includes the step of selecting of a straw material, wherein wheat straw, corn straw, rice straw or cotton straw is selected as the straw material, the straw material is pretreated by cleaning, then the straw material is dipped with a trivalent iron salt solution, and filtered by vacuum, then a filter cake is dried, and a finished magnetic biochar product can be obtained by carbonization treatment in inert gas conditions. The magnetic biochar can be obtained by dipping the straw material in the trivalent iron salt solution by a pyrolysis process, and a new way for the use of straw is provided.

The invention relates to a testing machine for simulating the fatigue life in a full scale mode in the marine environment of a harbor pipeline, and the testing machine belongs to the technical fields of new pipeline material development and structure design and mechanics performance testing, wherein two guide rail beams are fixedly connected with a workbench; two movable supports are respectively in sliding connection with the guide rail beams; two servo loading units are respectively in sliding connection with the guide rail beams; and an internal pressure loading unit is fixedly connected with the workbench. The testing machine provided by the invention has the advantages that the performance of the harbor pipeline is comprehensively and reliably analyzed; the loading type of any combination is realized; the mechanics performance, welding performance, fatigue life and the like of the pipeline are tested more comprehensively and more accurately by simulating the stress conditions of the harbor pipeline in a full-scale and full-direction mode; and the testing machine has important significance in effectively preventing the harbor pipeline from fracturing.

The invention discloses a frozen bovine semen diluent, and the consumption amounts of all the raw materials in 100ml of the diluent are: 0.8 to 1.2g of fructose, 1.4 to 1.6g of sodium citrate, 2.3 to 2.6g of TRIS, 7.5 to 9.5g of low-density lipoprotein, 5 to 8ml of glycerol, 0.085 to 0.12 million IU of penicillin and the rest is distilled water. The preparation method is that: the fructose, the sodium citrate and the TRIS are dissolved in the distilled water to be prepared into a base liquid; penicillin G sodium and the low-density lipoprotein are added in the base liquid to prepare a I liquid; the glycerol is added in the I liquid to prepare a II liquid; then the pH value is adjusted to 6 to 7.5, then a filtration and a sterilization are carried out, and the liquid is cooled until reaching the room temperature and then arranged in a refrigerator of 2 - 5 DEG C for standby. The frozen bovine semen diluent of the invention has good and reliable effect, which can provide high-quality and excellent straw frozen semen for bovine artificial insemination and have very broad market application prospect.

The invention discloses a method for adjusting/reducing the internal stress of a laser additive manufacturing part. The method is used for laser coaxial powder feeding additive manufacturing, and comprises the following steps that (1) a three-dimensional additive manufacturing part model is established, and contour level information of the part is obtained; (2) a workbench is moved to a fusion covering station, and coaxial powder feeding laser additive manufacturing is conducted through a fusion covering head, and after processing of a fusion covering layer is completed, the workbench is descended by the height of one layer; (3) the workbench is moved to an impacting station, bulk heating is conducted on the fusion covering layer, after the fusion covering layer reaches the set temperature, laser impacting and strengthening are conducted on the fusion covering layer through an impacting head, and the set temperature is higher than the recrystallization temperature of a material and lower than the melting point of the material; and (4) the steps (2) and (3) are conducted repeatedly till the three-dimensional part is manufactured. According to the method, the residual compressive stress introduced by the laser impacting and strengthening technology is utilized to adjust and counteract the pulling stress in the hot melting process, and the laser thermal composite additive manufacturing method controllable in internal stress is achieved.

The invention provides an anti-counterfeiting method by utilizing an intelligent mobile phone to identify code saw-teeth. The method comprises the steps of amplifying and photographing saw-teeth of a product code and image-text margin; storing the photographed saw-tooth characteristic information into an anti-counterfeiting system database to be used as anti-counterfeiting characteristic filing information. The method is simple and easy to implement, and for the user product of the existing drug electronic supervision code, the amplified picture of the saw-teeth is stored when the product is under the automatic quality inspection and is used as the anti-counterfeiting characteristic filing information to be stored. By implementing the method, the equipment investment is not increased, the procedure is not increased, the cost is not increased, an effective anti-counterfeiting function of the product can be realized, and the bug of the digital anti-counterfeiting technology such as the telegram code anti-counterfeiting technology can be blocked up.

The invention discloses alumina-based chemical mechanical polishing slurry. In terms of the total mass of the chemical mechanical polishing slurry, the chemical mechanical polishing slurry comprises components in percentage as follows: 0.1-30wt% of polishing particles, 0.01-10wt% of a surfactant and the balance of a pH regulator and an aqueous medium. The polishing speed of the chemical mechanical polishing slurry to a sapphire substrate material can be controlled to range from 50 nm/min to 200 nm/min, and meanwhile, the surface roughness is decreased to below 15 angstroms; speed-controllable, low-surface-damage and residue-free polishing can be performed on the sapphire substrate material by the aid of the polishing slurry.

The invention relates to a preparation method of aluminum oxide metal ceramic reinforced iron-based composite, namely, aluminum-oxide-based metal ceramic is used as a structural framework and one of effective components to prepare metal ceramic iron-based composite, which is consistent in structure, even in metal phase distribution, high in mechanical performance, and high in wear resistance, under certain pressure by melt casting and further processing. The preparation method includes the steps of firstly, preparing aluminum oxide metal ceramic framework base pretreated by activated Si into surface-modified prefabricated ceramic part with a silk-screen-shaped pore structure by high-temperature sintering; secondly, preparing a pouring sand module; thirdly, placing the pouring sand module into a casting sand box for pretreating, pouring, vacuumizing, and allowing iron-based molten metal to fully permeate into pores of the prefabricated ceramic part to form a rigid integrity; and fourthly, performing heat treatment and air cooling to obtain the iron-based composite with closely combined aluminum oxide metal ceramic and iron base.

A manufacturing method for cordyceps sinensis (Berk.) sacc polysaccharide relates to the technical field of food microorganism application, and comprises the following steps: weighing raw materials, wherein rice bran is 1-3 g per 100 ml, bran is 1-3 g per 100 ml, potassium dihydrogen phosphate is 0.09-0.18 g per 100 ml, and magnesium sulphate is 0.04-0.08 g per 100 ml; material filling with natural pH after adding required water, and sterilizing and cooking at the temperature of 121 DEG C for 30 min; inoculating cordyceps sinensis (Berk.) sacc CCTCCM2013285 liquid seed after cooling, wherein the inoculation amount is 8-10%, the fermentation temperature is 23-28 DEG C, and the fermentation time is 4-7 d; respectively obtaining exopolysaccharides and mycelia polysaccharide after conducting deproteinization, alcohol precipitation, centrifugal separation, and vacuum drying on centrifugal separation liquid extracted through breaking cell wall hot water of fermentation material centrifugal separation liquid and hypha. The method better realizes the purpose that rice bran and bran are efficiently and high-valuedly transformed to cordyceps sinensis (Berk.) sacc polysaccharide after being subjected to liquid state fermentation.

The invention relates to a design method of a line unwinding constant tension control device in a line winding system. A servomotor and a line unwinding wheel are arranged on a frame, the line unwinding wheel is driven by the servomotor, a pulley block which comprises two fixed pulleys and a movable pulley is arranged on the frame behind the line unwinding wheel, the movable pulley is arranged between the two fixed pulleys and is arranged on a swing rod, the swing rod is articulated with the frame, an air cylinder is articulated on the frame, a piston rod of the air cylinder is connected with the swing rod in a driving mode, a tension sensor is arranged on the frame behind the pulley block, lines output by the line unwinding wheel are introduced into the tension sensor by the pulley block, and the lines which pass through the tension sensor are towed to a line winding host machine. The loading force of the air cylinder has a proportional relation with force and a force arm which act on the movable pulley of the swing rod, and the constant tension is ensured in a small angle. When the swing rod is lower than a balance position, inverse voltage is output to control the servomotor to wind the lines; when the swing rod is higher than the balance position, positive voltage is output to control the servomotor to unwinding the lines; and when used, the line unwinding content tension control device has higher stability.

The invention provides a concrete releasing agent for an aluminum alloy template of a building. The releasing agent comprises the following components in parts by weight: 8-15 parts of grease, 1-3 parts of fatty acid monoglyceride or fatty acid diglyceride, 2-5 parts of fatty acid, 1-3 parts of resin, 0.05-0.5 parts of basic metal compound, 3-5 parts of inorganic filler and 1-5 parts of solvent. The releasing agent coats the aluminum alloy template of the building and is used in the concrete pouring technology, the concrete releasing quality is good without obvious blister, and the releasing agent residue surface matter is easily removed and the releasing agent is suitable for use for single or multiple times, and the service life of the template is prolonged.

The present invention provides an optical signal and a relay method, apparatus, system and application of luminous energy transmission, relating to a wireless optical communication signal and a connection relay method, apparatus, mechanism, system, network and Internet of wireless luminous energy transmission. In one embodiment, inputted optical signal and luminous energy irradiate a photovoltaic receiving converter assembly portion, and an electrical signal and electrical energy are generated; through an electric signal processing assembly portion and an electrical energy assembly portion, a reproduced electric signal and electrical energy are recovered and then are sent to a luminescent light source assembly portion through an electrical signal bus circuit to be converted into an optical signal and luminous energy output, and functions of a relay signal and relay energy can be reached at the same time. In other embodiments, a local oscillator light source assembly, an electrical signal access device and a programmable device are added respectively. A mechanism embodiment explains that the relay apparatus of the invention can convert a space layout method and system of a communication link. According to the invention, functions of utilizing a repeater to relay bridging between various networks and providing the Internet are revealed.

The invention relates to a process and a device for recovering and recycling protective gas of a bell-type bright annealing furnace. The process comprises the following steps of: performing cooling and condensation of oil and gas in refluxing protective gas of a bell-type bright annealing furnace group; allowing the cooled and condensed protective gas to enter a water separator to remove most of water and oil; allowing the cooled protective gas from which the oil and the gas are removed to enter a preceding stage buffer tank; after the protective gas is buffered by the preceding stage buffer tank, pressurizing by using a roots blower; allowing the pressurized protective gas to enter an oil absorption device to remove oil and enter a deaerator to remove oxygen; reacting in the deaerator to generate water and discharge heat; cooling the protective gas by using a cooler and removing water from the protective gas by using a condenser; allowing the cooled and dehydrated protective gas to enter the water separator to separate water; allowing the protective gas to enter an absorption regeneration drying device for removing water and impurities deeply; and performing decompression and voltage stabilization on the purified gas by using a post-stage buffering tank and then supplying the purified gas to the bell-type bright annealing furnace group. Through the process and the device, the refluxing protective gas of the bell-type bright annealing furnace group is recovered and purified and enters the annealing furnace to be recycled as the protective gas again.

The invention belongs to the technical field of biological fermentation and distillation and specifically relates to a solid-state vertical anaerobic (aerobic) fermentation, self-circulation cooling and distillation integrated device and method. The device adopts a technical scheme comprising a solid-state vertical fermentation tank, a washing tower, a washing pump, a gas cabinet, a circulating gas cooler, a circulating fan, a filter and a distillation product cooler, wherein the solid-state vertical fermentation tank comprises a tank body, a stirring device arranged at the bottom of the tank, a discharge device, a feed port, a distillation product gas outlet, a biochemical reaction gas outlet, a manhole, a discharge rake, a distillation steam inlet and a circulating gas cooling air inlet. The solid-state vertical fermentation tank with high fill rate is firstly adopted, automatic discharge, high production efficiency and controllable temperature can be realized, and the device is simultaneously suitable for anaerobic and aerobic solid-state fermentation; and at the end of fermentation, the device can be utilized for performing distillation on materials to be distilled, reduce the handling of the materials and simultaneously reduce the loss of distillation products caused by volatilization in transit.

The invention discloses a method for easing distributed denial of service attacks, which solves the defects in the prior detection or defense technologies. The method provided by the invention comprises the following steps of: presetting a group of regional scope presented by an IP (Internet Protocol) address block, and a threshold of the number of messages of a protocol type or a message property allowed by each sub-region in the regional scope; when receiving one message of the corresponding protocol type or message property, searching the sub-region to which the message belongs according to a source IP address; if a cv (current value) of the number of the messages of the protocol type or message property corresponding to the sub-region to which the message belongs is more than 0, subtracting 1 from the cv, and further processing the received messages regularly according to the protocol type or message property; if the cv is equal to 0, or directly discarding the messages or discarding the messages after recording related information of the messages; aiming at the request on easing different types of distributed denial of service attacks, concurrently executing different recovery processing for the cv of the number of the messages of the corresponding protocol type or message property in corresponding sub-region within a given scope. The method is used in an IP network.

The invention discloses a method for preparing fuel brick with pyrolysis and taking city waste as raw material, and it aslo relates to special device- pyrolysis retort. The invention is to thermal decompose the organic matter in city waste, produce anoxic uindirect heating condition through proper engineering technology during pyrolysis, control heating temperature, heating speed and thermal insulating time to make the organic matter in city waste form into solid carbon, and converse carbonized city waste into fuel brick.

The invention discloses an automatic assembly method for orthotropic plate unit U-shaped ribs. The method comprises: S1, molding U-shaped ribs; S2, blanking a bridge deck slab and forming a U-shaped rib assembly locating line; S3, locating the U-shaped ribs on an area to be welded on the bridge deck slab through a U-shaped rib assembly locating device; S4, clamping the U-shaped ribs through the U-shaped rib assembly locating device; S5, using a welding robot for U-shaped rib fillet welding positioned welding; and S6, repeating the steps till U-shaped ribs on the whole plate unit are assembled and subjected to positioned welding. The method has the advantages of being high in assembly accuracy and assembly production efficiency, stable in welding quality and the like of orthotropic plate unit U-shaped ribs and is high in applicability, capable of being popularized and applied in manufacture fields of steel structures such as ship steel structures, mechanical steel structures and building steel structures and wide in the application range.

The invention discloses a warrantable privacy protection space crowdsourcing task distribution system and method, and the system comprises an SC server, an encryption service provider, a space task requester, and workers. The encryption service provider generates a secret key, and employs a Paillier password and ElGamal password system. The space task requester creates a space task, and returns the position of the task to the SC server. The SC server encrypts the position of the task, and each worker calculates the distance between the position of the task and the position of the worker. The speed of each worker is encrypted and transmitted to the SC server, and each worker calculates the travel time of his own, and encrypts the travel time and transmits the encrypted travel time to the SC server. The SC server calculates the winning workers through the encryption service provider, and the encryption service provider enables the winning worker set comprising a plurality of winning workers to be encrypted and returned to the SC server. The SC server encrypts the position of the task, and broadcasts the encrypted position of the task to all workers, and the winning workers arrive at the specified position to execute the task. According to the invention, the system achieves the double-side privacy protection in the space crowdsourcing, greatly reduces the calculation, and can guarantee that the task is accepted at high probability.

The present invention relates to a device for testing digital communication bit error rate, comprising a communication interface module for connecting to external computers or controllers; a bit error processing module for analyzing bit error of a device or system to be tested, and transmitting result to an external computer or controller; a clock generating module for selecting operation clock according to instruction of the communication interface module, and supplying the operation clock to the bit error processing module; an opto-electrical/electro-optical converter module for converting optical signal from outside into electric signal and transmitting the same to the bit error processing module, and converting high-speed electric signal generated with the bit error module into optical signal to output; a software system module for controlling the integral testing device. The device, including a bit error testing function for electric interface and optical interface, can be used as independent testing apparatus, also can be remote controlled or integrated onto an automatic testing system.

This invention relates to a telescopic dual-rotor wind-electric excitation mode, its control system and its motor, in which, a magnet inner rotor rotating corresponding to a stator is set on the sub-drive shaft of the generator and driven by it, a ring rotor driven by the primary drive shaft and rotating against the stator is set on the primary drive shaft, and the ring rotor is in the structure of surrounding the magnet inner rotor and rotating around it, the pole logarithm of the inside winding of the ring rotor is the same with the magnet inner rotor as Pe and the pole logarithm of the outside winding of the ring rotor is the same with the stator winding as Pg and the outer winding and the inside winding are connected in phase reversion, a primary vane rev testing device and a sub-vane rev testing device are set on the main and sub-vanes transferring rev signals to the integrated control device of the set, and the crab controller and the integrated control device are connected in the mode of controlling rotation of wind direction under the main vane.

The invention relates to a brown coal dry-distillation method using a coal hot air furnace to supply heat. The brown coal dry-distillation method comprises the following steps of: adding brown coal in a drying furnace to be heated and dried, sending the heated coal into a dry-distillation furnace to be heated and dry-distilled to obtain thermal carbocoal, cooling and quenching the thermal carbocoal in a quenching furnace to obtain a carbocoal product; purifying high-temperature smoke produced by the coal hot air furnace in a purifying room, making dry-distilled coal gas enter into the purifying room, consuming residual oxygen in the high-temperature smoke to produce high-temperature hot air with a low oxygen content as all or partial heating sources of the drying furnace used for coal drying, wherein the dry-distilled heat source in the dry-distillation furnace partially or all comes from the high-temperature smoke produced by burning the dry-distilled coal gas in a burner, and obtaining crude tar and clean dry-distilled normal-temperature coal gas after the following treatments: de-dusting and cooling the dry-distilled coal gas and tar steam, and separating tar and on the like. Compared with the method taking the dry-distilled coal gas as the heat source drying heat source, the high-temperature smoke of the coal hot air furnace is used as the brown coal drying heat source, a lot of dry-distilled coal gas is surplus, such that the saved plenty of dry-distilled coal gas can be for other uses and thus the economic value is high.

The invention provides a continuous multi-layer full-automatic energy-saving curing kiln. A plurality of raceways arranged in an matrix shape are positioned in a kiln body so as to form a layer structure; left and right sides of the kiln body are connected with a left lift and a right lift; the left lift is connected with a brick-receiving rolling plate-moving carriage on which a supporting plate is arranged; the right lift is connected with a stacker through a brick-delivering rolling plate-moving carriage; a brick stacking bracket used for stacking bricks is arranged on a bottom plate of the stacker; and a plate grabbing mechanical arm is arranged above the brick-delivering rolling plate-moving carriage; therefore, the brick-receiving rolling plate-moving carriage, the left lift, the kiln body, the right lift, the brick-delivering rolling plate-moving carriage and the stacker are connected into an automatic production line. The continuous multi-layer full-automatic energy-saving curing kiln integrates functions of transfer, curing, deliver, storage and the like, continuously and automatically completes the curing of bricks, can greatly save energy, and is very practical.