97results about How to "The principle is scientific and reliable" patented technology

The invention belongs to the technical field of cross nanofiber preparation, and relates to a method for preparing a cross nanofiber P-N heterojunction array. The method includes the steps of firstly, depositing a layer of P type or N type nanofiber array with the controllable fiber number and the controllable interval on a collector of a three-dimensional adjustable low-voltage near-field in-situ electrostatic spinning device; secondly, rotating the collector by a certain angle; thirdly, depositing a layer of N type or P type orderly-arrayed nanofiber array through the three-dimensional adjustable low-voltage near-field in-situ electrostatic spinning device, and obtaining the cross nanofiber P-N heterojunction array on the collector. The method is simple, scientific and reliable in theory, high in efficiency, accurate in accuracy control, beneficial to large-scale production and environmentally friendly.

The invention belongs to the technical field of intelligent traffic equipment, and particularly relates to an intelligent traffic device for assisting a blind person in going out. A main body structure comprises an intelligent bracelet, a sensor, a dial plate; the intelligent bracelet, the sensor and various functional units of a traffic signal machine can operate independently, can also be linkedto run and do not influence with one another, and even if one functional unit is damaged, use of other functional units is not affected or constrained. The intelligent bracelet reminds the blind person to effectively pass through an intersection through vibration according to information of the sensor, the situation that traffic accidents are caused when voice reminding is influenced by noise andcannot be normally heard is avoided, drivers of vehicles passing through the intersection can be reminded to give way to the blind person while the blind person is reminded, the situation that the blind person cannot go normally according to pedestrian traffic lights and jaywalks and accordingly traffic accidents are caused is effectively avoided, the personal and property safety of traffic participants is improved, and great economic and social benefits are achieved.

The invention belongs to the technical field of automatic vending equipment, and relates to a mobile type goods automatic vending device. A body structure comprises a solar canopy, a presenting window, a goods discharge bin, a wind power generator, a display screen, a control panel, a veering rod, a motor wheel, a gear, an outer cylinder, an inner rod, a bearing, a stop bolt, a vending machine body, a goods storage bin, a camera, a payment window, a password lock, a support, a connecting shaft, a damping spring, a motor, a storage battery and an LED lamp, according to requirements and instructions, the mobile type goods automatic vending device is moved to a set site for vending and goods supplement, the curiosity of customers is attracted, the vending site is flexible, more crowds are satisfied, the investment amount of the automatic vending machine is reduced at the same time, through commodity information and advertisement information played by the display screen, the sales volume and advertisement income can be increased, and through the complementary power generation of solar energy and wind energy, electricity support is provided for operation and movement of the automatic vending machine. The mobile type goods automatic vending device is simple in structure, scientific and reliable in principle, small in operation capital, safe in performance, environmentally friendly and friendly in using environment, and saves energy.

The invention belongs to the intelligent traffic management technical field and relates to an Internet-of-things intelligent traffic law violation management device. The main body structure of the Internet-of-things intelligent traffic law violation management device comprises a video monitoring unit, a speed detection unit, a law violation management unit, an information editing and broadcasting unit, a storage unit, an information distribution unit and a voice broadcasting unit, wherein each unit has independent unit functions, and the units are in electric information communication with one another so as to form the Internet-of-things intelligent traffic law violation management device used for managing traffic law violation behaviors. The management method of the Internet-of-things intelligent traffic law violation management device includes the steps of law violation information acquisition, law violation information processing, law violation information editing and broadcasting and law violation information distribution. According to the Internet-of-things intelligent traffic law violation management device, law violation behaviors of traffic participants can be processed intelligently and distributed timely based on the functions of the Internet of things, and the occurrence rate of traffic law violation behaviors and traffic accidents can be decreased, and the smoothness of traffic intersections can be improved, and intelligent management of traffic accident prevention can be realized. The Internet-of-things intelligent traffic law violation management device has the advantages of simple structure, scientific and reliable principle, easiness in operation and control, excellent warning and intimidating effects, friendly use environment and wide application prospect.

The invention belongs to the technical field of preparation of high polymer nano materials, and relates to a preparation method of polypyrrole nano fibers. The preparation method comprises the following steps of: adopting a diazosulfide fluorescer namely 3,3-bis(4-(4,4-diphenylamine)cinnamenyl)-{1,2,5-}diazosulfide base)-2,2'-dimethoxy-1,1'-binaphthyl (TBB for short) as a doping agent, and doping the diazosulfide fluorescer TBB to a high polymer main chain; and performing self assembly in an aqueous solution to prepare the polypyrrole nano fibers with fluorescence properties and electrical conductivity. The preparation method is simple, scientific and reliable in principle, environment-friendly and suitable for large-scale production; and the prepared polypyrrole nano fibers are good in flexibility, strong in enwinding property and good in stability, have excellent fluorescence properties while keeping good self electrical conductivity, and have wide application prospects in the fields of multifunctional antistatic coatings, display materials, micro and nano material marks, micro and nano light-emitting devices and solar batteries.

The invention belongs to the technical field of radioactive substance treatment equipment and relates to a radioactive organic waste treatment device. A main body structure comprises a waste temporary storage tank, a catalytic degradation kettle, a solid waste collector, a separation tower, a thermal oxidation device, a tail gas processor, an air filter and a discharging pipe, the catalytic degradation kettle and the separation tower are in bidirectional fixed connection through a pipe, the waste temporary storage tank is fixedly connected with the catalytic degradation kettle through a pipe, the separation tower is fixedly connected with the thermal oxidation device through a pipe, the thermal oxidation device is fixedly connected with the tail gas processor through a pipe, the tail gas processor is fixedly connected with the air filter through a pipe, the air filter is fixedly connected with one end of the discharging pipe through a pipe, the other end of the discharging pipe is directly communicated with the atmospheric environment, the catalytic degradation kettle, the thermal oxidation device, the tail gas processor and the air filter are fixedly connected with the solid waste collector through pipes, and organic ingredients in radioactive organic waste are converted into inorganic ingredients according to the catalytic cracking principle. The radioactive organic waste treatment device is simple in structure, scientific and reliable in principle, reasonable in cost, safe in performance, capable of saving energy and protecting the environment and environmentally friendly in use.

The invention belongs to the technical field of coal processing, and relates to a pulverized coal milling device and method. The main structure of the pulverized coal milling device comprises a DCS automatic control system, a coal mill, a raw coal supplier, a pulverized coal collecting and storage system and an induced air negative-pressure drying system, wherein the DCS automatic control system is separately connected with the coal mill, the raw coal supplier, the pulverized coal collecting and storage system and the induced air negative-pressure drying system through electric information and controls the operation of the above devices; and the pulverized coal milling method comprises the three steps of operation debugging, formal pulverized coal production and subsequent processing. One time of input and multiple times of output can be realized for pulverized coal milling data, and the whole process is automatically controlled; the DCS automatic control system controls the temperature and air volume of drying air; pulverized coal during a milling process is dried by utilizing low-temperature drying air circulation; a full-negative-pressure pulverized coal conveying mode is adopted by the induced air negative-pressure drying system; and the pulverized coal milling device is simple in structure, scientific and reliable in principles, simple and convenient in operation, precise in control, high in coal milling efficiency, good in safety performance and low in cost, and is energy-saving and emission-reducing.

The invention discloses a trichosanthes kirilowii pulp and seed separating and cleaning device. The trichosanthes kirilowii pulp and seed separating and cleaning device comprises a crushing cavity, a membrane scraping separation cavity, a rinsing separation cavity and a transmission device, wherein the crushing cavity comprises a feed port, a crushing cavity channel, fixing ribs, a power output shaft, crushing rollers and crushing teeth; the membrane scraping separation cavity comprises a fixed separation sieve, a membrane scraping roller and membrane scraping propelling brushes; the rinsing separation cavity comprises a high-pressure spraying pipe, a high-pressure water supply device, a drain pipe, a drain valve, a rotary screw conveyor mesh sieve, a power wheel, a spiral net block, an outlet, a support shaft, a rinsing tank and a discharge port; the transmission device comprises a motor, a driving belt, a first driving wheel, a second driving wheel and a third driving wheel; the corner type crushing cavity channel formed by fixedly connecting a front wall, a rear wall, a left wall, a right wall and a bottom wall is formed at the lower end of the funnel-shaped feed port, and an included angle ranging from 100 degrees to 150 degrees is formed between the front wall and the bottom wall. The trichosanthes kirilowii pulp and seed separating and cleaning device is precise in separation, small in water consumption, environment-friendly and particularly suitable for separating trichosanthes kirilowii pulp and seed coat.

The invention belongs to the technical field of internet, and particularly relates to an industrial internet system based on an industrial brain. An industrial brain host not only can complete equipment docking, instruction issuing and data acquisition work, but also has the capability of docking and fusing heterogeneous industrial software, and the capability of business scheduling, edge calculation, business processing, big data analysis and platform interconnection. API can be comprehensively opened to the outside, business applications can be written at will, Handle identification analysis standards can be supported, and based on an industrial data chain technology and a business rule chain technology, personalized problems of different industries and different enterprises are solved through modularization and standardization of the industrial brain host, a personalized scheme is provided for the enterprises by using one set of industrial internet system, application industries and applicable enterprises are not definitely limited, and only one industrial brain host needs to be deployed in a machine room, and one or more industrial data gateways can be deployed in a production workshop, so that the system has the popularization advantage of universality.

The invention belongs to the technical field of sensor manufacturing, in particular to a piezoelectric flexible sensing device. The piezoelectric flexible sensing device mainly consists of a piezoelectric flexible sensor, an electromyographic signal preprocessing module, a Bluetooth wireless transmission module, a Bluetooth wireless receiving module, an electromyographic signal analysis processingmodule, a prosthesis motion control module and the like. The piezoelectric flexible sensor collects muscular tension signals and transmits the signals to the electromyographic signal preprocessing module, the electromyographic signal preprocessing module transmits preprocessed electromyographic signals to the electromyographic signal analysis processing module, and the prosthesis motion control module controls the motions of prostheses according to the electromyographic signals processed by the electromyographic signal analysis processing module. The device is reasonable in structure, scientific and reliable in principle, great in product stability, high in sensitivity and capable of greatly improving the life of the disable. By adopting built-in sensors, epidermal tissue can be avoided to directly apply the electromyographic signals, the signals can be more effectively and accurately collected to help manipulation of the prostheses, and therefore the movement functions of the prostheses can be more equivalent to those of original limbs.

The invention belongs to the technical field of rubber wet mixing, and particularly relates to a preparation method of the white carbon black / rubber composite. The technological process comprises three steps of masterbatch mixed liquor preparation, masterbatch preparation and composite preparation. The preparation method comprises the following steps: carrying out pretreatment such as stirring and ultrasonic atomization on fillers to form filler emulsion firstly, next, adopting a sudden temperature crushing technology on filler pre-dispersion, spraying out the filler emulsion through high pressure gas, spraying the filler emulsion on the surface of a high-temperature object, thereby crushing the filler emulsion drop by sudden heating, and realizing secondary dispersion of the filler in the rubber matrix. By adopting the high-temperature flashing drying technology, the wet method mixed rubber prepared from filler pre-dispersion subjected to the sudden temperature crushing technology is placed into high-temperature environment to evaporate moisture instantly, the solid filler is excellently dispersed into the rubber matrix, and finally a traditional internal mixer is adopted to prepare the filler / rubber composite. According to the invention, the principle is scientific and reliable, the implementation is simple and convenient, the preparation efficiency is high, the application prospect is wide and the use environment is friendly.

The invention belongs to the technical field of food processing equipment and relates to a smashing type food stirring cup. The main structure of the smashing type food stirring cup comprises a cup body bottom rubber, a cup body, a handle, an upright post, a smashing knife, a rotating shaft, a bearing, a cup lid, a rotating shaft hole, a discharging spout, a fixing hole, a support plate, a blade, a raised clamp, a clamping groove, a power cavity and a short arm, wherein the upright post is fixedly processed in the center of the bottom end inside the cup body through a fixing hole, the lower end of the smashing knife is in sleeve joint with the upright post in a detachable manner, the annular support plate and the rotating shaft are processed at the upper end of the smashing knife, and the top of the rotating shaft adopts a groove structure so as to be convenient for snap-on butting to external electrodynamic force; and the smashing type food stirring cup is reasonable in structural design, is convenient to operate and use, is fashionable and compact in appearance, conforms to mass aesthetic requirements, is scientific and reliable in principle, is simple and safe to use, is easy to demount, convenient to clean, small in noise, and is multipurpose and environmental-friendly.

The invention belongs to the technical field of electrical detection, and relates to a dual-coil anti-magnetic-type current transformer. A magnetic ring is in the form of a magnetic conductive material cylinder of a closed ring annular structure. The two ends of a primary-side coil are connected with a to-be-measured end respectively. A compensation coil and the primary-side coil are opposite in winding direction, and the winding diameter of the compensation coil is larger than the winding diameter of the primary-side coil. An amplifier drive coil and the primary-side coil are the same in winding direction. The coil diameter of the amplifier drive coil is larger than the coil diameter of the primary-side coil. The input ends of an operational amplifier are respectively connected with the two ends of the amplifier drive coil via a first resistor and a second resistor. The output ends of the operational amplifier are respectively connected with the two ends of the compensation coil via the docked collectors of a first triode and a second triode. The parameters of the first triode and the second triode are symmetrical. The dual-coil anti-magnetic-type current transformer is simple in structure, low in cost, efficient, anti-magnetic, good in linearity, high in precision, good in dynamic performance, high in accuracy, easy in production, and environment-friendly.

The invention belongs to the technical field of pulverized coal combustion, and particularly relates to a novel low-nitrogen pulverized coal combustor. The main structure of the novel low-nitrogen pulverized coal combustor comprises a primary air pipe, a thick pulverized coal passage, a thin pulverized coal passage, rotational flow blades, a secondary air pipe, a tertiary air pipe, a thick and thin pulverized coal separator, separation part openings, a separation part, a flow stabilization part, a flow extending part, flow guiding plates and an ignition device, wherein primary air carries pulverized coal to pass through the thick and thin pulverized coal separator to be separated into a thick pulverized coal primary air flow and a thin pulverized coal primary air flow; the thin pulverized coal primary air flow is mixed with secondary air and then rotational flow air is formed under the action of the rotational flow blades; the thick pulverized coal primary air is subjected to oxygen-deficient combustion in the outlet of the thick and thin pulverized coal separator; the rotational flow air is subjected to oxygen-enriched combustion in the outlet of the thick and thin pulverized coal separator; and tertiary air wraps the outmost periphery for flame adjustment, so that the emission amount of nitric oxides during a pulverized coal combustion process can be lowered. The novel low-nitrogen pulverized coal combustor is simple in structure, scientific and reliable in principles and good in combustion effect; the amount of the generated nitric oxides is smaller; energy is saved, and the environment is protected; and the application is environment-friendly.

The invention is suitable for the technical field of wind tunnel tests, and provides a vertical wind tunnel model pitching-rolling test device and a use method, and the test device comprises a base which is fixedly installed on a vertical wind tunnel test section tunnel wall platform; a stand column, the bottom end of the stand column being fixedly connected with the base; a supporting rod, located between the stand column and the web supporting bent rod, one end of the supporting rod being fixedly connected with the top end of the stand column, the other end of the supporting rod being connected with one end of the web supporting bent rod through a rotating assembly, and the rotating assembly being installed at the end, away from the stand column, of the supporting rod; and a belly supporting bend rod, the end, away from the rotating assembly, of the belly supporting bent rod being fixedly connected with the installation base, and the installation base being fixedly installed on the belly of the aircraft model. Free pitching / rolling motion of the airplane model under the action of aerodynamic force can be achieved, the structure is simple, mechanism rotation damping is small, interference is small, precision is high, and installation is easy, convenient and reliable.

The invention belongs to the technical field of passenger flow intelligent detection equipment, and in particular relates to a passenger flow detection device based on a WiFi technology. The main structure of the device comprises a pole, WiFi probes, PC mainframes, network adapters and a convergence server, the sets of WiFi probes, the PC mainframes and the network adapters can run in a linked manner and also can run independently, without mutual influences; even one set is damaged, the normal use of the other sets is not influenced; the WiFi probes send monitored, detected and collected passenger traffic information to the convergence server; the convergence server is combined with a map for analyzing and computing, a passenger flow hotspot map and a passenger flow running trail map are drawn, and intelligent construction and development of a stadium are achieved; the device is simple in structure, scientific and reliable in principle and easy to implement; the electronic equipment can be monitored by the WiFi probes as long as the wireless functions of the electronic equipment carried by the passenger flow is in open states, so that the device is simple and convenient to operate,environment-protective, energy-saving, high in degree of intelligence, and friendly to using environment.

The invention belongs to the technical field of detection and evaluation, and relates to a method for testing and evaluating the innovation capability of juvenile students. The method is used for judging the inventing and creating thinking and operational ability of the juvenile students at the age from 10 to 16, and guiding the juvenile students to create the interest and confidence in inventing and creating. The technological steps are implemented in a device with a function of computer test base management for testing and evaluating the innovation capability of juvenile students, and the method specifically comprises the following steps: building a question bank, carrying out information recording, selecting examination questions, carrying out the answer testing, carrying out the integration calculation, evaluating the capability, and outputting a result. Compared with the prior art, the method is simple in testing and evaluation, is scientific and simple in principle, is friendly in application environment, can achieve the accurate testing and analysis and evaluation of the innovation capability of juvenile students, and provides reference for the cultivation of the innovation-type juvenile students.

The invention belongs to the technical field of digital image processing, and relates to an underwater image sharpening enhancement method. A color correction strategy and a contrast enhancement strategy are combined to execute a sharpening process of an underwater image, the color correction strategy is used for eliminating attenuation difference caused by propagation attributes of light in a medium or artificial illumination and improving the color cast problem, and the contrast enhancement strategy is used for improving the contrast so as to eliminate the atomized appearance of the image and expose more scene details. The method is simple, the principle is scientific and reliable, the detectable image structure characteristics can be effectively increased, the underwater image definition is enhanced, the variational framework has good coupling, and the method can be combined with other technologies or used as a preprocessing step to be widely applied to the field of computer vision.

The invention belongs to the technical field of additive manufacturing, and particularly relates to a surface quality improving method for DLP photocureable additive manufacturing. The surface qualityimproving method is characterized by comprising the following steps: performing slicing treatment on a three-dimensional digital model, thereby obtaining an inner area and an edge outline of the three-dimensional digital model; separately performing data processing on the inner area and the edge outline of the three-dimensional digital model to obtain a light beam curing scanning path and a DLP curing inner boundary; and performing DLP curing on the inner part of the DLP curing inner boundary to obtain a cured area, utilizing a scanning galvanometer to control a light beam to scan along the light beam curing scanning path, thereby obtaining an outer outline area of the three-dimensional digital model, wherein part of the area in the outer outline area is superposed with the DLP curing boundary, and the curing area is connected to the outer outline area. The surface quality improving method is scientific and reasonable in principle, is simple in curing process, can effectively improvesurface quality of current DLP light source photocureable additive manufacturing, and reduces follow-up processing processes.

The invention belongs to the technical field of a civil engineering material performance test method and relates to a method for measuring resistance of concrete to chloride ion permeability. The method is realized through a device for measuring resistance of concrete to chloride ion permeability, and comprises the following specific five steps: preparation of a concrete test sample, pretreatmentof the concrete test sample, clamping of the concrete test sample, measurement of resistance of the concrete test sample and calculation and analysis of permeability of the concrete test sample. A low-voltage high-frequency alternating current with voltage of 1 v and frequency of 1000 hz is adopted to measure the resistance of the concrete test sample obtained after saturated water pretreatment, and the resistance value reflects the resistance of the concrete test sample to chloride ion permeability, thereby overcoming the disadvantages of the polarization reaction easily existed in a direct current test method and interference on the resistance value caused by heat generated by the solution under long-time voltage action, and improving ASTM C1202 recommended by the American society for testing materials. The method is scientific and reliable in principle, simple in measuring process, fast in measuring speed, accurate in measuring results, and easy to be popularized and used.

The invention belongs to the technical field of rubber wet-method mixing, and particularly relates to a preparation method of a carbon-carbon / rubber composite material. The preparation method of the carbon-carbon / rubber composite material comprises the following three steps: preparation of rubber master batch mixed liquor, preparation of rubber master batch and preparation of the composite material. A filler is pretreated by technical means including stirring and ultrasonic atomization at first to form filler emulsion, then the filler emulsion is sprayed out through high pressure of gas by a filler pre-dispersed material sudden-temperature breaking technology, and is sprayed to the surface of a high-temperature object, filler emulsion droplets are suddenly heated and broken, secondary dispersion of the filler in a rubber matrix is realized, then a high-temperature flashing drying technology is adopted, a wet-method rubber compound prepared by sudden-temperature breakage of the filler pre-dispersed material is placed in a high-temperature environment, water in the wet-method rubber compound is evaporated instantly, the cured filler is excellently dispersed in the rubber matrix, and finally, a filler / rubber composite material is prepared by the conventional internal mixer. The principle is scientific and reliable, the preparation method is practical, simple and convenient, the preparation efficiency is high, the application prospect is wide, and the use environment is friendly.

The invention belongs to the technical field of medical drug manufacturing and particularly relates to a preparation method for temperature-sensitive sol used for treatment of gynecologic inflammation. The preparation method for the temperature-sensitive sol comprises four steps including preparation of a chitosan acetic acid solution, preparation of a carboxymethyl chitosan aqueous solution, preparation of a sodium beta-glycerophospahe aqueous solution and preparation of the temperature-sensitive sol, wherein chitosan powder is dissolved in an acetic acid solution, carboxymethyl chitosan powder is dissolved in ultrapure water, sodium beta-glycerophospahe powder is dissolved in the ultrapure water, then the chitosan acetic acid solution, the carboxymethyl chitosan aqueous solution and the sodium beta-glycerophospahe aqueous solution are obtained, finally the sodium beta-glycerophospahe aqueous solution is dropwise added into the carboxymethyl chitosan aqueous solution, after the mixture is stirred to be uniform, the uniformly-mixed mixture is added into the chitosan acetic acid solution, the obtained mixture is stirred again to be uniform, and then the temperature-sensitive sol is obtained. The preparation method for the temperature-sensitive sol has the advantages that the principle is scientific and reliable, the preparation operation is simple and convenient, the treatment effect is remarkable, the disadvantage that similar products can only be dosed at night is overcome, and the application prospect is wide.

The invention belongs to the technical field of thin film optics, and relates to a deep ultraviolet narrow band filter. The main structure of the deep ultraviolet narrow band filter comprises a base layer, a filter layer, a film layer and a protective layer. According to the deep ultraviolet narrow band filter, a design concept of the F-P band-pass filter film is used for designing a metal-mediumcombined transmission filter, a tandem metal-medium filter is selected to suppress a sideband of a long-wavelength region, an all-media filter is used for reducing the bandwidth, a multilayer film structure composed of a high refractive index material / low refractive index material is in tandem arrangement on the basis of a double half-wave F-P interference filter structure to form an F-P filter with a simple structure, the depth cutoff in a specific deep ultraviolet wave band is achieved in a wavelength band, by changing the shape of the filter layer, the half-bandwidth of the deep ultraviolet narrow band filter is reduced to separate a selected film layer from a film system, the combination of the entire film system is represented by two selected effective interfaces, as long as the multi-beam interference of the selected film layer is considered, the optical properties of the multilayer film are solved, and the method for designing the film system is obtained.

The invention belongs to the technical field of analysis and design of asynchronous motors, and relates to an acquisition method for an asynchronous motor stator end leakage inductance parameter. A model is established according to the structure of a stator winding end, coordinates are determined, numerical calculation is conducted, a conical bell mouth tilt angle of the winding end is processed, and meanwhile, points are determined in one-dimensional space along the edges of coils in the vector magnetic potential calculation process; after air-gap current and image current are introduced, a three-dimensional rectangular coordinate system is established, and coordinates of corresponding points are determined; vector magnetic potentials of all the points are obtained in combination with a numerical method, numerical integration is performed along an integration path, magnetic flow and magnetic linkage are calculated to obtain end leakage inductance between the coils, and end leakage inductance between any two phases of the motor stator winding end with different bell mouth angles is obtained according to the connection relation between a phase winding and the end coils. The acquisition method for the asynchronous motor stator end leakage inductance parameter is simple, the principle is scientific and reliable, the calculation speed is high, errors are small, accuracy and practicability are high, and the application range is wide.

The invention belongs to the technical field of a test device, and relates to a lead and conductor connection device of a strain gauge. The strain gauge is connected with two leads; the tail ends of the two leads are connected with arched soldering lugs; the backs of semitransparent cuboid gels are double sticky tapes; the tail ends of the semitransparent cuboid gels are connected with the arched soldering lugs; the upper half part of a fastening block is equipped with a threaded hole; the threaded hole is connected with a cup head cross-recess bolt; a conductor through hole is opened in the middle part of the fastening block; insulation paint is coated on the lower surface of the fastening block; the upper end of the fastening block is a circular fastening belt; the lower part of the fastening belt is an adhering sheet; the adhering sheet penetrates the fastening belt; the conductor at the outer side of each ring of spring sheet is winded on the spring sheet; one end of the spring sheet is clamped on a spring clamping shaft; the other end is located at the lower outlet of the conductor; the spring clamping slot is connected with an upper enclosure and a lower enclosure; and a triangular prism-shaped lock catch and a blocking shaft are mounted at the lower outlet of the conductor. The device is simple in structure, scientific and reliable in principle, flexible and convenient in operation and regulation mode and wide in application prospect.

The invention discloses a cell feeding method for treating heart disease. The method comprises the following steps: a, culturing treatment cells; b, preparing a suspension of the treatment cells and a culture medium; and c, placing the suspension into pericardial cavity. The method has advantages as follows: it can be ensured that the treatment cells simultaneously have better initial retention rate, in vivo survival rate and cell utilization rate, bioactivity of the treatment cells after transplantation can be well maintained, and cell treatment effect on heart disease can be further enhanced.

The invention belongs to the technical field of natural rubber wet mixing, and relates to a preparation method of a white carbon black / natural rubber composite material. Wet mixing process is adopted,the preparation method comprises the following steps: preparing white carbon black into a uniform dispersion solution through mechanical grinding; mixing the obtained dispersion solution with naturallatex, slowly stirring to enable the natural latex to be in full contact with the white carbon black; carrying out flocculation of negatively charged natural latex with positive charges generated bya high-temperature atomization method, and coating the white carbon black in an obtained flocculate; and carrying out dehydration drying to prepare the white carbon black / natural rubber composite material. The white carbon black / natural rubber composite material and the preparation method thereof have the innovation points that: first, other rubber auxiliaries except afiller and the latex in the formula are added together, so that premixing of the materials in the formula is realized, later processing is facilitated, the mixing time is shortened, and dust pollution generated during mixing is reduced; and second, the processing mode is continuous, aprepared masterbatch is put into a continuous mixing mill, and continuous production can be realized.

The invention belongs to the technical field of intelligent traffic equipment, and relates to an intelligent road linkage system. The main structure comprises a geomagnetic induction vertical rod, a pressure sensor, a charging induction coil, a heating magnetic induction coil, a geomagnetic sensor, a microprocessor, a haze purifier, a photovoltaic charging panel, a mobile phone charging QR code, a mobile phone charging connector, a map QR code and a navigation map. The road state is induced by using the geomagnetic induction vertical rod or the pressure sensor. The geomagnetic sensor induces an automobile and then starts the charging induction coil in a linkage way to charge the electrical automobile. The heating magnetic induction coil performs heating and snow removing on the road surface. The haze purifier can purify the air. The photovoltaic charging panel converts solar energy into electric energy to be stored in the microprocessor. Mobile phone charging and route inquiring can be performed in an intelligent bus shelter. The intelligent road linkage system is simple in structure, scientific and reliable in principle, easy to implement, easy and convenient to operate, environment-friendly and energy-saving, high in intelligent degree, great in traveling safety and friendly in use environment.

The invention discloses an automatic electric welding machine for a closed type circular weld bead. A second insulating plate of the automatic electric welding machine is fixedly arranged in a closed work chamber. A welding clamping device is fixedly arranged above the second insulation plate. A workpiece tool plate is arranged on the welding clamping device. A rotation drive motor arranged on the lower surface of the second insulating plate is connected with the welding clamping device through a motor connection sleeve. The lower portion of an upper top plate of the work chamber is fixedly connected with a cylinder through a U-shaped supporting frame. The bottom of a telescopic rod of the cylinder is fixedly connected with a welding gun supporting arm. A welding gun is installed at the other end of the welding gun supporting arm through a welding gun regulation device. A welding gun extension length adjustment switch, a welding gun height adjustment switch, a welding gun angle adjustment switch and a rotation drive motor rotating speed adjustment switch are arranged on the outer side of the work chamber. A wire feed device is connected with the welding gun, a carbon dioxide feed pipe is connected with the welding gun, and influences of electric welding smoke and splashing welding flux on the welding quality are reduced; the welding quality is improved, and the welding depth is uniform; and it is effectively avoided that workers get an electric shock in the use process.

The invention belongs to the technical field of natural rubber wet mixing, and relates to a preparation method of a white carbon black / natural rubber composite material. Wet mixing process is adopted,the preparation method comprises the following steps: respectively preparing white carbon black and an auxiliary agent into uniform micron-sized dispersion solutions through mechanical grinding; mixing with natural latex, slowly stirring to enable the natural latex to be in full contact with the white carbon black and the auxiliary to reduce the stability of natural latex, continuously stirring to flocculate into a gel; and carrying out extrusion to realize dehydration and drying of the gel to prepare the white carbon black / natural rubber composite material. The advantages that the quality ofa prepared rubber compound is uniform, the physical property and the dynamic mechanical property are obviously improved compared with those of the traditional mixing process, the production period isalso shortened, andmicrocosmic dispersion effect of the white carbon black in the natural rubber is achieved are achieved; the principle is scientific and reliable, the problem ofauxiliary agent andfiller residues caused by acid flocculation can be solved, the rubber internal mixing time is shortened, the problem of flying of rubber assistants is avoided, and the rubber production efficiency isimproved.