313results about How to "Beneficial technical effect" patented technology

The invention discloses an urgent collection method based on the credit score and an urgent collection device thereof. The urgent collection method comprises the steps of collecting urgent collection object credit information, processing the collected credit information, establishing a credit risk scoring model, predicting the overdue debt collection probability and performing the targeted urgent collection strategy. The risk level can be automatically judged according to the urgent collection score result so that the urgent collection strategy of the client can be reasonably determined, the urgent collection effect can be enhanced and the bad debt loss can be reduced. Data mining acts as the analysis technology so that the modeling time can be saved and the data support can be provided for the urgent collection industry. Besides, user information can also be updated in real time, the urgent collection risk score can be more accurately predicted, the most appropriate urgent collection strategy can be performed and the urgent collection task efficiency can be enhanced.

The invention relates to a temperature difference-sediment coupling density flow simulation test system. The test system comprises a muddy water tank, a water pump, a heating device, a water channel, a turbine flowmeter, a plurality of thermographs and a circulating water pond; the water channel is connected with the water pump and the muddy water tank through a duct, the turbine flowmeter is connected with the duct, temperature probes of each thermograph are arranged at two vertical water temperature measurement positions of the side wall inside the water channel, and the heating device is installed above the water channel. The test system is simple in structure and convenient to operate; by the aid of the test system, the interference of the heating device to a flow field inside the water channel at the density flow test stage in the past is reduced, and the motion process of a sediment density flow in a temperature-layered water body is simulated successfully; special phenomena of advancing of the sediment density flow in the middle layer and the surface layer of the water channel under the influence of vertical water temperature laying are achieved, and in addition, the reliability and the accuracy of density flow analysis and research can be improved.

The invention relates to a stratified flow simulation test water channel system which includes a reservoir, a submersible pump, a flowmeter, a valve switch, a water channel, a hydraulic jack, a position regulator in the water channel, a position-adjustable water inlet, a grid net, a pulling gate, a digital temperature chain and a sampling tube, a backwater sand punching pipe, a multi-channel recorder outside the water channel, a pump-absorption water sample acquisition case, a drain aperture elevation adjusting device and a position-adjustable water outlet. The water channel system has a simple structure and is easy to operate. The system can simulate a moving process of a stratified flow at the beginning of an inflow stage, and can also simulate the moving process of a stratified flow under the release of a valve flow, a stratified flow having the water inlets at different depths, a stratified flow having different bottom slop coarse degrees, and a stratified flow caused by different shapes and different factors. The system, through addressing the problem of singularity in stratified flow simulation types in traditional stratified flow tests, successfully achieves tests of different stratified flow simulation types, and increases reliability and accuracy of density flow analysis and research.

The invention discloses a terpolymer containing polyester chain links and polycarbonate chain links and a synthetic method thereof. The synthetic method comprises the following steps: mixing zinc-cobalt double metal cyanide complex catalyst, cyclohexene oxide and dicarboxylic anhydride in a solvent, introducing CO2 under the temperature of 30 to 150 DEG C till the pressure of CO2 is 0.5 to 10.0MPa, carrying out copolyreaction for 0.5 to 48 hours so as to obtain a crude product, and preparing the terpolymer which contains polyester chain links and polycarbonate chain links and has excellent thermal property and easy decomposition after purification. The molar percentage content of the polyester chain links, the polycarbonate chain links and polyether chain links of the terpolymer containing polyester chain links and polycarbonate chain links in the main chain are respectively 5 to 70 percent, 23 to 90 percent and 0.5 to 7 percent.

The invention discloses an oil separator. The oil separator comprises a box body, a solid-liquid separation chamber, a water-oil separation chamber and a water discharge chamber are arranged in the box body, an oil collection trough and an oil-water separation device are arranged in the oil-water separation chamber, the oil-water separation device comprises an oil adsorbing plate, an oil scrapingplate, a vertical driving assembly and a horizontal driving assembly, the lower surface of the oil adsorbing plate is provided with an oil adsorbing sponge layer, the oil-water separation device further comprises an oil guiding tube, one end of the oil guiding tube is connected with the oil scraping plate, the other end of the oil guiding tube extends to the oil collection trough, and the oil guiding tube receives oil scraped off by the oil scraping plate and guides the oil into the oil collecting trough. The vertical driving assembly drives the oil adsorbing plate to contact the liquid surface in the oil-water separation chamber, the oil adsorbing sponge layer adsorbs the oil, the vertical driving assembly drives the oil adsorbing plate to rise, the horizontal driving assembly drives theoil scraping plate to abut against the oil absorbing sponge layer, and the oil adsorbed by the oil adsorbing sponge layer is scraped by the oil scraping plate, goes through the oil guiding tube, and is collected into the oil collecting trough, so the water doped in the separated oil is reduced, and the trouble of secondary oil-water separation is reduced.

The invention provides a method for establishing a machin hyperlipidemia and atherosclerosis model. The method comprises the following steps of (1) preparing a plurality of machin as candidates; (2) detecting four biochemical indexes of the blood of the candidate machin such as TC,TG, HDL-C and LDL-C; (3) selecting the machin for the modeling to be grouped; (4) adding more than one of 5 to 20 percent of yolk powder, 5 to 20 percent of lard oil and 0.5 to 2 percent of cholesterol on the basis of 58 to 89.5 percent of basic feed according to the formula of high-fat feed by weight percent to prepare a plurality of formulas, respectively utilizing one formula to feed one group of machin, and determining an optimal formula according to the variation of the biochemical indexes; (5) completing the establishment of a hyperlipidemia model; and (6) detecting relevant indexes of the model. Through the method for establishing the machin hyperlipidemia and atherosclerosis model, the optimally selected high-fat feed can successfully induce the increase of the blood fat of the machin and is very stable.

The invention discloses a liquid-coated gas desulfurizing/atomizing nozzle which comprises an internal tapered slurry nozzle and an internal tapered gas nozzle, wherein the gas nozzle is arranged in the slurry nozzle, a gap is formed between the outer wall of the gas nozzle and the inner wall of the slurry nozzle, the outer wall of the slurry nozzle is provided with a slurry inlet pipe, and the internal circumferential surface of the slurry nozzle is a thread surface. Pressure gas subjected to pressurization is fed into the gas nozzle with an internal tapered end, further compressed, jetted out from the gas nozzle, and then converged with slurry in a tapered jet chamber of the slurry nozzle so as to form 'liquid-coated gas'; and under the action of high speed and pressure difference, the 'liquid-coated gas' is broken, and liquid drops are separated and broken and finally jetted out by the slurry nozzle, so that the slurry is efficiently atomized, thereby achieving an optimal flue gas desulfurization effect. The slurry inlet pipe is communicated with the gas nozzle in an obliquely-tangential direction, and the installation angle is consistent with the spiral angle of a thread structure, thereby further facilitating the formation of a natural spiral rotational flow when the slurry is fed into a slurry cavity, and facilitating the formation of the 'liquid-coated gas'.

The invention discloses an intelligent pneumatic chuck and a laser cutting machine. The intelligent pneumatic chuck comprises a mounting casing, a rotator assembly and a driving device; the rotator assembly is arranged in the mounting casing; the driving device is arranged at the back end of the mounting casing and is connected with the rotator assembly; the rotator assembly comprises a rotating seat, an air cylinder and a plurality of clamping assemblies; the plurality of clamping assemblies are arranged at the front end of the rotating seat in an evenly distributed manner in the circumferential direction at equal angles; the air cylinder is arranged in the rotating seat; a piston rod of the air cylinder is connected with the clamping assemblies; and a detecting mechanism is further arranged in the rotating seat and is connected with the piston rod of the air cylinder. The intelligent pneumatic chuck and the laser cutting machine have the beneficial effects as follows: when the pistonrod of the air cylinder drives the clamping assemblies to be opened or closed, the detecting mechanism can detect the stroke of the piston rod of the air cylinder, the pipe clamping states of the clamping assemblies can be known through analysis, the problems that the pipes are flattened due to clamping or the models of the pipes are wrong can be fed back timely, mistakes of laser cutting or damage to a laser cutting head can be avoided, the laser cutting efficiency can be improved, and the production cost can be reduced.

The invention relates to a sterilization method capable of preventing a reverse osmosis membrane from being polluted and plugged by microbe. The sterilization method mainly comprises the steps of adding an oxidizing sterilizing agent NaClO (5%) solution to a raw water tank continuously; adding a reducing agent NaHSO3 (35% W/V) solution continuously after ultra-filtration; removing residual chlorine thoroughly; controlling a pH value of inlet water at a reverse osmosis inlet between 7.1 and 7.4; monitoring and controlling ORP before a security filter between 200 mv and 300 mv; and sterilizing by carrying out preventative addition of a non-oxidizing sterilizing agent DBNPA solution with a concentration of 50 ppm continuously for one hour once every week in the above flow according to the quick killing characteristic of the non-oxidizing sterilizing agent DBNPA. Meanwhile, NaClO addition to the raw water tank is stopped. The sterilization method mainly takes use of the oxidizing sterilizing agent accompanied by two non-oxidizing sterilizing agents to carry out preventative sterilization alternatively, controls drug tolerance and resistance of the microbe, can effectively prevent and control propagation and excessive multiplication of the microbe on the surface of the reverse osmosis membrane, thereby preventing the reverse osmosis membrane from being polluted and plugged by the microbe.

The invention discloses a flight robot arm system based on a force feedback device and VR sensing, and a control method. The system comprises a drone part and a ground station part, wherein the dronepart comprises a drone body, a binocular camera, an onboard computer, a robot arm, a control system and a visual label; the control system comprises a flight master and a robot arm master, the onboardcomputer and control system are installed on the drone body; the ground station part comprises a VR head display, a force feedback device and a ground station host, and the onboard computer sends a flight control command and a robot arm control command received from the ground station host to the control system. Through the VR sensing and display technology, the flight robot arm system based on the force feedback device and VR sensing, and the control method observe the stereoscopic scene in front of the drone in real time from the first angle of view, which enables to more accurately observeand locate the target object, and reduces the difficulty of the subsequent robot arm control. The force feedback device is used to control the movement of the robot arm, and the grab technology of the flight robot arm is used to adjust the position of the robot arm in real time and accurately.

The invention discloses a bionic-based robot perception control system and a control method. The system comprises a robot body, a mechanical arm and a visual inertial navigation module, the robot bodyis provided with a mechanical arm base, the mechanical arm is mounted on the mechanical arm base, the mechanical arm is provided with a plurality of rotating joints, one steering gear is arranged ineach rotating joint, the visual inertial navigation module is installed at the end of the mechanical arm, and the visual inertial navigation module uses a visual inertial odometer to establish a cloudmap synchronously in real time. The system adopts the visual inertial navigation module as a visual navigation and positioning system of a bionic robot, utilizes a multi-degree-of-freedom movement ofthe mechanical arm to make a robot visual system free from the limitation of the movement of the robot body so that the robot can cope with complex and varied dynamic scenes, utilizes a visual inertia SLAM technology to achieve real-time navigation and positioning functions, which makes the bionic robot have a strong human-computer interaction function, and can be applied in the various dynamic scenes.

The invention discloses a high-strength high-elasticity copper alloy and a preparation method thereof, belongs to the field of nonferrous metal manufacturing, and particularly relates to copper-based elastic alloy. The high-strength high-elasticity copper alloy is composed of, by weight, 4.8-7.6% of Ni, 0.05-0.10% of Co, 2.3-5.7% of V, 1.7-2.2% of Cr, 3.5-5.7% of Mo, 1.5-2.3% of Zn, 1.2-2.3% of Mn, 0.7-2.5% of Ti and the balance Cu. The tensile strength of the copper alloy can reach 1300-1600 MPa, the percentage elongation is 11.5% to 16.0%, meanwhile, the copper alloy has quite high fatigue strength being no lower than 460 MPa; and the copper alloy obtained through the method is small in fluctuation range of the tensile strength and percentage elongation, the requirement that the insertion and extraction time is greater than or equal to 40000 when the insertion and extraction force is 1.5 N is met, and the copper alloy can be used for electronic elastic elements.

The invention discloses a reaction gas humidifier for a proton exchange membrane fuel cell, comprising a humidification tank, a heating jacket, a thermocouple, a porous metal material, an inlet air pipe, an outlet air pipe, purified water, a temperature controller, a gas flow controller and the like. The humidifier can control the reaction gas humidification of the fuel cell accurately, has the advantages of adjustable humidification amount, ideal humidification effect, no liquid water drops, high humidification speed, simple and practicable device, lower cost and the like, and can be suitable for a test experiment system of the proton exchange membrane fuel cell.

A high-stable and semi-flexible supporting structure for a secondary lens of a space camera comprises a secondary lens bearing frame, three supporting rods and three supporting bases. The secondary lens is fixed to the secondary lens bearing frame in an adhesive connection mode. The three supporting rods are uniformly distributed on the secondary lens bearing frame and located on the back side of the reflecting surface of the secondary lens, the first end of each supporting rod is fixed to the secondary lens bearing frame in the tangential direction of the secondary lens, and the second end of each supporting rod is connected to one corresponding supporting base. The supporting bases are connected to a front lens tube through screws. According to the high-stable and semi-flexible supporting structure, bolt rigid connection is adopted for the front segments of the connecting parts of the supporting bases and the supporting rods, structural adhesive and damping adhesive flexible connection is adopted for the rear segments of the connecting parts of the supporting bases and the supporting rods, and semi-flexible spring structures are arranged between the supporting bases and the supporting rods. Compared with a full-rigid connection structure or a full-flexible connection structure, the high-stable and semi-flexible supporting structure has high dynamic rigidity, static rigidity, damping properties and stability and meets the space environment use requirement of a secondary lens assembly of the large-aperture coaxial three-lens camera.

The invention relates to a composition and a preparation process, a testing process and an application thereof. The composition comprises a therapeutically effective amount of candesartan or pharmaceutically acceptable ester or salt, a therapeutically effective amount of amlodipine or other pharmaceutically acceptable salt, 70-150 parts of mannitol or lactose, 2-5 parts of croscarmellose sodium or cross-calcium carboxymethyl cellulose and 5-40 parts of microcrystalline cellulose or corn starch. The composition is easy to prepare, low in production cost, utilizes accessories of unique prescription, and the like, can be prepared into oral preparation in forms of tablets, capsules, granules and the like by means of pharmaceutics, can be checked by different checking processes, has high quality, has functions of treating hypertension, angina pectoris and kidney diseases and has effect of myocardial protection.

The invention discloses a corrugated bracket of a fan. The corrugated bracket of the fan comprises an air guide ring, a plurality of flow guide blades and a bracket hub, wherein a motor is mounted atone side of the bracket hub; fan blades are connected to the motor through a rotating shaft and are mounted at the other side of the bracket hub. The corrugated bracket of the fan further comprises anopening expansion structure which is arranged at the end part of the air guide ring; the flow guide blades are arranged between the opening expansion structure and the bracket hub; the line of the inner wall of the opening expansion structure is inclined; corrugated noise reducing structures, comprising at least one group of wave crests and wave troughs, are arranged at the rear edges of the flowguide blades; each group of wave crests and wave troughs is arranged in the direction from the rear edges of the flow guide blades to the front edges of the flow guide blades. With the adoption of the corrugated bracket of the fan, the motor can be supported during being mounted, and moreover, the flow guide blades are corrugated, so that air output by the fan can be rectified, and as a result, the fan eddy loss is decreased, the fan efficiency is improved, and the broadband eddy noise is reduced.

The invention provides a laser airtight welding process-based packaged structure of a high-frequency microwave product and a manufacturing method for the packaged structure. The packaged structure comprises a box, an upper cover plate and a lower cover plate; a first groove and a second groove are formed in the open end of the box, and are respectively matched with the two cover plates; by fixing the lower cover plate in the first groove with screws, and fixing the upper cover plate in the second groove in an interference fit and laser welding manner, the moisture-proof and anti-corrosion packaging of the to-be-packaged high-frequency microwave product is realized, the mechanical strength of a to-be-packaged electronic component is improved, and the reliability of the electronic component is guaranteed.

The invention discloses a zipper head passing machine for zippers. The zipper head passing machine for zippers has the scheme that the zipper head passing machine comprises a machine frame, wherein azipper belt conveying assembly, a zipper head conveying assembly, a zipper belt notch detection assembly and a zipper head passing assembly are arranged on the machine frame; the zipper head conveyingassembly comprises a zipper head vibration blanking disc and a zipper head guide slide rail; the tail end of the zipper head guide slide rail is provided with a single zipper head pushing-out assembly; the zipper head passing assembly comprises a horizontal belt guide plate, and also comprises a belt clamping assembly, a zipper belt separating assembly and a zipper head installing assembly; the single zipper head pushing-out assembly is used for conveying the zipper heads to the zipper head installing assembly; the zipper belt conveying assembly drags the zipper belts to be conveyed in the horizontal direction; the horizontal belt guide plate is horizontally and glidingly arranged on the machine frame; the zipper head passing assembly also comprises a horizontal driving assembly; throughthe zipper head passing on the zipper belt in the horizontal direction, the energy consumed in the zipper head passing process is reduced; the efficiency is favorably improved; the influence by gravitational acceleration is reduced; the vibration is reduced; and the use stability of the machine is improved.

The invention relates to a compound jet pump based on the combination of center jet flow and annular jet flow. The compound jet pump comprises a working water pipe, a center nozzle, an annular nozzle,a water suction tube, a suction-in chamber, a throat tube inlet section, a throat tube, a diffusing tube and a water outlet tube. The compound jet pump further comprises a center nozzle control valveand an annular nozzle control valve. The center nozzle is arranged at the center of the annular nozzle. The center jet flow and the annular jet flow are combined. The compound jet pump solves the problems that a single center jet pump or single annular jet pump is low in efficiency, and the properties can be turned to be poor after working condition change. Compared with a traditional center jetpump and annular jet pump which are mostly used at present, the compound jet pump is small in structural change, the required parts are not greatly increased and technological processing can be achieved easily. The working efficiency is high, the problems which cannot be achieved by the traditional single jet pump are solved, and thus the application prospects are broad.

The invention discloses a slider penetrating device for a zipper. According to the technical scheme, the slider penetrating device comprises a rack, feeding mechanisms, a slider penetrating mechanism,a cut-off mechanism and a chain dragging mechanical hand, wherein the feeding mechanisms comprise a chain belt feeding mechanism and a slider feeding mechanism, the slider feeding mechanism comprisesa vibrating plate and a feeding track, the rack is further provided with a single part pushing assembly, a horizontal conveying mechanism is arranged at the tail end of the lower end of the feeding track, the horizontal conveying mechanism comprises a horizontal sliding base, a material receiving plate and a horizontal drive mechanism, the horizontal sliding base is provided with a fixed block and a movable block, the fixed block, the movable block and the material receiving plate form a material receiving cavity for accommodating the slider, the material receiving cavity is arranged just opposite to a discharge hole of the feeding track, the slider is pushed into the material receiving cavity of the horizontal sliding base through the single part pushing assembly, the horizontal siding base is pushed towards the slider penetrating mechanism through the horizontal drive mechanism, thus the stability of the process of conveying the slider to the slider penetrating mechanism is increased, the conditions of blockage and material leak possibly caused by loading of the slider are reduced, and the use reliability of the device is improved.

The invention provides a constant-current source circuit with current monitoring capability. The constant-current source circuit comprises a basic constant-current source circuit, a current detection circuit, a voltage conditioning circuit, a comparison circuit, a signal retaining circuit, a power supply control circuit and a power conversion circuit, wherein the power conversion circuit is used for providing working voltages to the other circuits; the current detection circuit is used for converting output currents of the basic constant-current source circuit into voltage signals and providing the voltage signals to the voltage conditioning circuit; the voltage conditioning circuit is used for conditioning the voltage signals and then outputting the voltage signals to the comparison circuit; the comparison circuit is used for comparing conditioned voltages with a preset voltage and sending an on/off control signal to the signal retaining circuit; the signal retaining circuit is used for outputting the signal to the power supply control circuit; the power supply control circuit is used for controlling the power conversion circuit to perform power supply or power breakdown on the basic constant-current source circuit. The constant-current source circuit can be used for monitoring the output currents of a constant-current source in real time, and cutting off the power supply of the constant-current source when the output current exceeds a set value, thus cutting off the output current of the constant-current source so as to avoid damages on electric equipment.

The invention discloses a wrapping tape locking and releasing device for an expandable antenna. The wrapping tape locking and releasing device is applied to locking and releasing of the expandable antenna. The wrapping tape locking and releasing device comprises a root expanding joint, a pre-tightening device, a composite wrapping tape assembly and an initiating explosive device. The composite wrapping tape assembly comprises two composite wrapping tapes. The two ends of each composite wrapping tape are connected with the root expanding joint and the pre-tightening device respectively, so that the two wrapping tapes are connected together. The pre-tightening device is locked and released through a pin puller of the initiating explosive device so that the wrapping tapes can be locked and released. The wrapping tape locking and releasing device is simple in structure, easy and convenient to operate and high in reliability. The wrapping tape locking and releasing device can solve the problem that a traditional rope tape or steel tape type wrapping tape hooks a reflector, and can be popularized and applied to the field of locking and releasing of various expandable structures to achieve locking and releasing with the requirement for large pre-tightening force, thereby having broad application prospect.

The invention discloses a program evolution model-based object code reverse engineering system. An object code file packaging format can be automatically identified; an object code file code segment is distinguished; analysis is carried out by a disassembly technology and a corresponding program model is generated; analysis is carried out again and a new program model is generated on the basis of the previous program model; the processes are continuously repeated; and gradual refinement is carried out to finally generate an ASM reassemble file. By the program evolution model-based object code reverse engineering system, accurate and effective reverse engineering can be carried out on a self-confused object code file comprising instruction overlapping; the program evolution model-based object code reverse engineering system can be applied to analysis and identification of packed malicious software comprising a self-confusion instruction, instruction overlapping and the like and analysis of anti-disassembly closed-source software.

The invention provides a comprehensive test intelligent interpretation system for a small satellite. The system comprises a parameter subscription module, a data distribution module, an interpretation execution module, a clock service module, a base data access module, a command processing module, an interface display module and a network communication module; the interpretation system receives real-time test data in a satellite test process; after processing and analyzing the real-time test data, and performs logical judgment on remote control command, telemetry parameter, test state, test information flow and the like according to different interpretation modes and interpretation algorithms to generate interpretation process information and interpretation result information. The intelligent interpretation system adopts multiple types of interpretation comprising command interpretation, state interpretation, key parameter interpretation and information flow interpretation, defines that interpretation execution comprises a result, circulation, increment and conversion, and effectively improves the accuracy rate and the coverage performance of the interpretation through the division of the types of the interpretation.

The invention discloses a preparation method of N-lauroyl-L-alanine. The preparation method comprises the following steps: preparing L-alanine salt, preparing pasty N-lauroyl-L-alanine salt, and preparing an N-lauroyl-L-alanine crude product and the like. The invention further provides application of amino acid in the daily chemical field and industries such as agriculture and medicines. The aminoacid provided by the invention has high performance, and has an obvious effect in the aspects of bacterium inhibition, pesticide removal, peculiar smell elimination and the like.