439results about How to "Convenient time control" patented technology

The invention discloses a multi-missile time cooperative guidance method with collision angle constraint. A new missile and target dynamic equation is built under the reference coordinate system, andon the basis of the optimal control theory, a guidance rule of the tail end collision angle constraint is designed; the error between current remaining flying time of missiles and the expected remaining flying time serves as a sliding mode surface, the remaining flying time of the missiles has tendency to the expected remaining flying time, on the basis of the sliding mode control theory, the timecontrollable guidance rule is designed; the switching strategy of the tail end collision angle controllable guidance rule and the time controllable guidance rule is designed for enabling the missilesto hit the target at the expected time and angle; a multi-missile time cooperative communication network is built, on the basis of a dual-layer cooperative guidance framework, coordinated variable isdesigned to enable the remaining flying time of the missiles to tend to be consistent, the missiles can hit the target at the same time at the expected collision angles, and multi-missile time cooperation in real meaning is achieved.

The invention provides an internet-based intelligent kitchen terminal product and a configuration method thereof. The product is characterized in that any one or more than one types of the following combinations from 1-1 to 1-5 and any one or more than one types of the following combinations from 1-6 to 1-9 are arranged on a terminal displayer; and the combinations from 1-1 to 1-5 include a display device used for guiding users to perform kitchen operation; built-in intelligent kitchen terminal application programs which are equipped with multiple input and output interfaces; multiple types of built-in wireless connecting modules; a processor; a memory; a power supply; a terminal display interface; and system programs. The combinations from 1-6 to 1-9 include multiple configured installing modes; and an intelligent kitchen terminal with an LED or liquid crystal display screen (LCD) for display, wherein the intelligent kitchen terminal includes any one of a square interface, a rectangular interface, a circular interface and an elliptical interface, and the boundary dimension has the appropriate size of length*width and at least covers or belongs to the range of 5.0-50cm*5.0-50cm.

The invention discloses a case-based reasoning method facing hazardous chemical accident emergency aid decision making. The method includes the steps: 1, structurally expressing accident characteristics of accident cases of dangerous chemicals and the emergency rescue process thereof, and serving as sample cases of emergency aid decision-making; 2, acquiring feature information parameters of the incident to be determined at a site, and converting text information of the feature information parameters into numerical attributes on the basis of the parameter numerical attribute extraction rule toconstitute a reasoning evaluation set; 3, setting a weight, calculating the local similarity of each accident feature parameter in the reasoning evaluation set and the overall similarity of the sample cases, and selecting a certain number of decision alternative cases; and 4, reconstructing emergency rescue parameter information of the stage of alternative cases with the highest similarity through comparison and giving the emergency rescue parameter information to the incident to be determined as an emergency aid decision making result. The invention can ensure the effectiveness and applicability of the emergency aid decision-making information to a certain extent, and improve the efficiency of emergency treatment.

The invention relates to an ultrasonic assisted flame brazing method for titanium and aluminum dissimilar metal, which comprises the steps of conducting hot dip aluminum plating on a titanium plate before brazing to form an aluminizing layer in a certain thickness on the surface of the titanium plate, heating with combustible gas flame to melt an NOCOLOK brazing flux and aluminum silicon brazing filler metal, applying ultrasonic vibration on an overlapping part of a joint till the aluminum silicon brazing filler metal is solidified, and obtaining a titanium and aluminum overlap joint. The method has the main characteristics that the subsequent titanium and aluminum brazing is changed into the brazing of an aluminum plate and the aluminizing layer; the method improves wet spreading ability of the aluminum silicon brazing filler metal on the surface of the aluminized titanium plate and solves the problem that the aluminum silicon brazing filler metal difficultly wets a titanium base during the brazing; layered continuous distribution of an intermetallic compound on a brazing interface reaction layer of the joint is broken; the intermetallic compound is granulated and diffused; and the method facilitates acquirement of the high-quality titanium and aluminum dissimilar metal brazed joint.

The invention discloses an injection mold cavity pressure control system and method. The injection mold cavity pressure control system comprises a high-pressure nitrogen source, wherein the high-pressure nitrogen source is connected with a mould air inlet through a pipeline, a first pressure reducing valve is arranged on the part, which is close to the high-pressure nitrogen source, of the pipeline, the pipeline is divided into two paths after passing through the first pressure reducing valve, one path is connected with an air control regulating valve through a second pressure reducing valve, a first pressure meter and an electronic pressure controller, the other path is connected with the air control regulating valve through a second pressure meter, the outlet of the air control regulating valve is connected with the mould air inlet, a third pressure meter, a pressure sensor and a pressure relieving pipeline unit are sequentially arranged on the pipeline, the electronic pressure controller, the pressure relieving pipeline unit and the pressure sensor are connected with a data processing and controlling system, and the data processing and controlling system is connected with an injection molding machine signal unit. The invention also discloses a control method of the injection mold cavity pressure control system. The injection mold cavity pressure control system has the characteristics of high pressurizing rate and pressure relieving rate of a mould cavity, capabilities of maintaining high pressure of the mould cavity and controlling the acting time of the high pressure of the mould cavity, and the like.

The invention discloses an automatic gain control device and a method thereof. The automatic gain control device comprises a simulation VGA, an ADC, a downsampling unit, a digital VGA, a simulation AGC controller, a digital AGC controller and a power calculating unit, wherein the simulation VGA, the ADC, the downsampling unit and the digital VGA are sequentially connected, the simulation AGC controller is connected with the simulation VGA and the digital AGC controller, the digital AGC controller is connected with the digital VGA, and the power calculating unit is connected with the downsampling unit, the simulation AGC controller and the digital AGC controller. The method comprises the steps of downsampling analog-digital conversion output signals, calculating the power average value for downsampled data, calculating the gain coefficient of the simulation VGA in a logarithm domain based on the power average value, using the gain coefficient of the simulation VGA to gain the power average value, and calculating the amplitude gain coefficient based on the gained power average value. The automatic gain control device can reduce downsampling operation amount and signal distortion, widens an automatic gain dynamic range, enables coefficient updating time to be controllable, solves the problem of loop convergence time and is small in resource consumption of hardware.

The invention discloses an organic inorganic nanometer composite hybrid waterproof leak stopping gel, and a preparation method thereof, and belongs to the technical field of municipal and building engineering new material. According to the preparation method, a silicon precursor is subjected to sol gel method so as to obtain an inorganic silicon network, at the same time, an acrylate is subjectedto double bond free radical polymerization reaction under the effect of a promoter and an initiator so as to generate a linear high molecular product; under the effect of a crosslinking agent, the linear high molecular product is subjected to crosslinking so as to obtain a gel body with a network structure, wherein the gel body is capable of absorbing water of the sizes of a plurality of times ofthe size of the gel body, is capable of swelling, and is not dissolved in water. The organic inorganic nanometer composite hybrid waterproof leak stopping gel is capable of improving gel water absorbing performance and strength, the problems in the prior art that single organic acrylate grouting material is low in compression strength, and cracking is easily caused are solved; at a drying and watering cycle environment, adhesion onto the surface of concrete is realized, shrinkage and peeling from concrete surface or fracture caused by water lose are prevented; re-swelling is realized after contact with water; leakage is not caused after long term cracking, shrinkage, and swelling circulation, and permanent leak stopping effect is achieved.

The invention provides a readily-foaming emulsifying agent. The readily-foaming emulsifying agent consists of the following components in percentage by weight: 60 to 40 percent of surfactant and 40 to 60 percent of wetting and stabilizing agent, wherein the surfactant at least comprises S-80 with high hydroxyl value. The main components and compounded products of the emulsifying agent are dissolved into oil easily; and the emulsifying agent is emulsified with aqueous solution of ammonium nitrate inorganic salt to form a latex matrix, and after the latex matrix is added into aqueous solution of sodium nitrite, bubbles are generated to sensitize the latex matrix into emulsion explosive.

The invention relates to a casting process of a nodular cast iron planet carrier, which comprises the following procedures of modeling, iron melt melting, spheroidizing, modifying, casting and stress relieving and annealing. The design of a casting system adopts a step casting method which takes consideration of both bottom casting and top casting to improve the finished product rate of castings, and also adopts technical schemes of placing chill iron at the position of thick walls, adding Sn element in the iron melt, optimizing, spheroidizing, modifying, casting and the like, so that the produced planet carrier not only meets the high demands on property, but also achieves great improvement in production cost and efficiency.

The invention relates to a high-strength temporary blocking agent for oil and gas wells and a preparation method and application thereof. The temporary blocking agent for oil and gas wells is prepared from the following ingredients through crosslinking reaction: thickening agent, dispersing agent, adhesive and a temperature resistant material with mass ratio of (2.5-3):(1.3-2):(2.8-3):(1.7-2), preferentially, 3:2:3:2. The temporary blocking agent for oil and gas wells has the advantages of high strength, filter cake formation, good solubility and controllable time, flowback is facilitated and the method is simple to operate.

The invention relates to a portable medical cold compress device which comprises a host and a cold compress bag, wherein a water circulating module, a refrigerating module and a detection control module are arranged in the host; the water circulating module comprises a water tank, a heat exchanger, an impeller pump, a three-way reversing valve and a two-way valve; the refrigerating module mainly comprises a micro compressor, a condenser, a throttle valve, an evaporator and a fan; the detection control module mainly comprises a temperature sensor, a pressure sensor, a power supply and a control circuit on the basis of ATmega32; the detection control module detects the temperature and the pressure inside a liquid circuit of the water circulating module, compares the detected temperature and pressure with set cold compress temperature and pressure, enables the water circulating module to operate in different modes and controls the refrigerating module to be started or shut down. The portable medical cold compress device is rapid to refrigerate, is controllable in the cold compress temperature, time and pressure, can implement multi-parameter regulation and is suitable for treatment in hospitals and outdoor on-site rescue.

Preparation of a copper based metal organic framework material which has electrocatalytic hydrogen evolution performance. The invention belongs to the technical field of crystalline materials. The chemical molecular formula of the material is [Cu3(Ddpb)1.5(H2O)3], wherein H4Ddpb refers to 1,3-bis(3',5'-dicarboxylphenyl)benzene; one Cu<2+> is connected to four oxygen atoms of carboxyl groups of the H4Ddpb ligand and is connected to another Cu<2+> to form a binuclear wheel paddle structure. A two-dimensional surface being (10.0351*9.9731) Angstrom<2> is formed on the b-c surface of the crystalline material, and then through connection by means of extension of the organic ligand, a three-dimensional network framework being 68.5% in porosity is formed. The metal organic framework material is simple in synthesis process, is high in crystallization purity, has novel structure and large porosity, and has high-effective electrocatalytic hydrogen evolution performance.

The invention provides a semiconductor structure and a manufacturing method thereof, belonging to the technical field of semiconductors. The structure comprises a substrate and one or more layers of interconnection structures, wherein the top layer of interconnection structure comprises a plurality of bottom metal wires, a plurality of contact plugs, an interlayer dielectric layer, a top metal wire, a metal fuse and an insulating layer. The metal fuse comprises a cathode, an anode and a fusing region, wherein the cathode is arranged on at least one residual contact plug, the anode is arranged on at least one residual contact plug, the contact plug below the cathode and the contact plug below the anode are arranged at different bottom metal wires, and the fusing region is respectively connected with the cathode and the anode. The semiconductor structure and the manufacturing method thereof disclosed by the invention are simple; through the manufacturing method disclosed by the invention, the thickness of the manufactured fuse by is easier to control and is thinner, thus the fuse can be fused by using low-energy laser or current.

The invention provides a sintering method, and in particular relates to a method for rapidly sintering a solar wafer. A rapid thermal processing way is adopted to sinter large-area cells of silk-screen printing. The method comprises the following steps of: conveying, drying and exhausting cokes, rapidly heating to sinter as well as sintering at a high temperature and cooling. The method has the beneficial effects that the passivation effect is good, the minority carrier lifetime is improved greatly, the contact resistance of a Ag (silver) electrode and the quality of Al-BSFs (aluminum back surface fields) for the cells can be improved, the thermal stress is reduced, the contact resistances of solar cells are reduced obviously so as to improve the utilization of short wave spectra, the evenly good Al-BSFs are formed to improve the open-circuit voltages and filling factors of the cells, the warping of the cells is reduced, and the conversion efficiency and finished product ratio of the cells can be improved.

The invention relates to a full-automatic tester for a slump degree of cement concrete. The full-automatic tester comprises an environmental box, as well as a slump degree cylinder, a scraping apparatus and an inserting and pounding apparatus which are successively arranged in the environmental box from bottom to top, wherein the slump degree cylinder is connected with a vertical traction apparatus; the scraping apparatus is provided with a through hole capable of being communicated with the upper end of the slump degree cylinder, and the scraping apparatus is connected with the horizontal traction apparatus; the lower end of the inserting and pounding apparatus can stretch into the slump degree cylinder, and the upper end of the inserting and pounding apparatus is connected with a liftingapparatus; a feeding apparatus for feeding materials into the slump degree cylinder is also arranged above the slump degree cylinder; the vertical traction apparatus, the horizontal traction apparatus and the lifting apparatus are respectively connected with a power apparatus, and the power apparatus is connected with a controller; and a measurement apparatus for acquiring a slump degree of cement concrete is also installed in the environmental box. By adopting the full-automatic tester for the slump degree of the cement concrete, the accuracy of a test result can be ensured, the automatic operation can be realized, the experiment continuity is good, and the accuracy and reality of a measured result are good.

The invention relates to a marine polysaccharide inorganic and organic composite controlled release fertilizer and a process for producing the same, belonging to the technical filed of fertilizer for corps. The marine polysaccharide inorganic and organic composite controlled release fertilizer comprises the following raw materials: 0.5-10wt% marine polysaccharide, 8-15wt% urea, 10-14wt% calcium superphosphate, 6-15wt% complex potassium salt and 30-65wt% seaweed meal, nitrogen-enriched bacterium and bacillus mucilaginosus are used as effective microbes, and others are common household organic fertilizers. The process comprises the following steps: (1) weighing the raw materials in certain mass percent; (2) homogenizing the raw materials for 10-20min; (3) granulating by disc atomizing; (4) drying the particles obtained by the step (3); (5) cooling the dried particles by normal temperature air cooling; (6) grading the cooled particles by a rotary screen; (7) coating the product surface with mixed water solution spray of marine polysaccharides and seaweed meals; and (8) measuring and packaging. The process has the advantage of scientific and reasonable process technique, and the produced fertilizer has the advantages of quick-acting, long-acting, synergy, water holding and controlled release. Various effects which can effect long time are achieved by fertilizing one time, so that the labor intensity of farmers is lightened, and the effectiveness and economy of fertilizing is improved.

A robot joint space point-to-point movement trajectory planning method. Joint space trajectory planning is performed according to the displacement of a robot from a start point to a target point during PTP movement and a limitation condition of a preset movement parameter physical quantity of each axis in a robot control system. An n-dimensional space is constructed by taking each axis of the robot as a vector, wherein n ≥2, and the movement parameter physical quantity of each axis of the robot is verified according to a vector relationship between the n axes of the robot, so that a trajectory planning curve of each axis of the robot satisfies the limitation condition of the preset movement parameter physical quantity. The method has a small amount of calculations and strong real-time performance, the movement curves are mild, the control time is optimal, and the algorithm execution effect is good.

When chip is in stand by mode, system operation timer of the chip is closed so that each module in the chip stops working. Control is started up under slow timer to maintain save mode so as to reach purpose of reducing power consumption and saving electricity. In order to keep synchronization to base station when save mode exits, the invention designs a calculation method to keep good synchronization to base station when save mode exits, and to possess very small frequency deviation. Comparing with prior art, the invention possesses advantages of few control signals, easy of implementation, controllable time in save mode, and small frequency deviation.

The invention discloses a method for rapidly determining the content of organic matter in soil. The method comprises steps as follows: 0.05-0.5 g of a soil sample is weighed and added to a digestion tube, 0.1-0.3 g of bismuth nitrate is added, and 10-15 mL of a potassium dichromate-concentrated sulfuric acid solution with the concentration being 0.4 mol/L and 3-5 mL of strong phosphoric acid are added; the digestion tube is placed in a digestion device provided with a graphite heating plate and suitable for simultaneous digestion of large batches of determined samples, accurate heating at 180 DEG C is performed, and organic carbon in the soil is oxidized; residual potassium dichromate in the digestion tube is titrated with a ferrous sulfate standard solution under electromagnetic stirring; then the amount of potassium dichromate consumed by the sample is multiplied by an oxidation correction coefficient, and the content of the organic matter in the soil is calculated. The method has the advantages of being high in accuracy, good in repeatability, simple to operate, low in energy consumption, low in cost, capable of saving time and labor, reliable in determined results and the like.

The invention discloses a method and a device for inhibiting generation of dioxin from incineration flue gas. The method comprises the steps of controlled cooling and quenching process. Flue gas with the temperature higher than 1100 DEG C from an incinerator is cooled to 600 DEG C by a way of waste heat recovery, through the power of an induced draft fan and the function of a distribution plate, an inert carrier in a spray-fluidization quenching tower is in a fluidization state, meanwhile cooling water is continuously sprayed into the tower; by utilizing the characteristic of high heat transfer efficiency of a fluidized bed, the incineration flue gas is instantly cooled to below 200 DEG C from 600 DEG C in less than 0.1s to inhibit the resynthesis of the dioxin. The method and the device provided by the invention have the characteristics of controllable quenching time and temperature, good quenching effect, non-generation of waste solids and waste water, and the like, are applicable to the purification of the incineration flue gas of various wastes, and realize the emission reduction of the dioxin.