37results about How to "Avoid multiple uses" patented technology

The invention relates to a microcapsule suspending agent compounded by chlorpyrifos and pymetrozine, and a preparation method thereof, and belongs to the pesticide production technology field. The pesticide takes the chlorpyrifos and the pymetrozine as the main active substances, a small amount of organic solvent and emulsifier as the auxiliary material, and takes urea-formaldehyde resin as the cyst membrane material, and is prepared through the interfacial polymerization-solidification method. The toxic components of the compound microcapsule suspending agent are packaged by the urea-formaldehyde resin, and the microcapsule suspending agent has the advantages of security, low-toxicity, high-efficiency, stabilization, etc.; meanwhile, the pesticide ingredient in the product slowly releases through the wrapping material, therefore, the control time of the product is prolonged, and the availability of the pesticide ingredient is improved; and the product is suitable for preventing and controlling pests, such as rice plant hoppers and Chinese chives maggot, etc.

Radio frequency ablation is a common method in minimally invasive treatment of the modern medicine. Aiming at the problems of the common ablation instrument and the common probe in application, the invention discloses an intelligent radio frequency ablation probe for treatment. The inside of the probe is embedded with an electronic subsystem. The probe provides various intelligent functions which comprises a function of wirelessly recording the using process of the probe, a function of storing and reading and writing a spurious impedance of the probe, a function of storing and reading and writing sensor parameters and the like when realizing ablation function so as to be more favorable to standardization of a using programme of the invasive probe. Moreover, the radio frequency ablation probe can improve the impedance and the accuracy of sensing the temperature during the treatment by a labeling process so as to help doctors to monitor the treatment process more conveniently, accurately and reliably.

The invention discloses a preparation method of (S)-3-(4-bromophenyl)piperidine as a Niraparib intermediate. The method comprises the following steps: carrying out nucleophilic reaction via ethyl p-bromobenzoacetate and N-boc-3-aminopropyl bromide under the action of alkali, carrying out cyclization under the alkaline condition, reducing through a reducing agent to obtain 3-(4-bromophenyl)piperidine and using a chiral resolving agent to obtain (S)-3-(4-bromophenyl)piperidine. The method is short in synthetic route, high in yield, free of hydrogen and metal catalysts and relatively low in production cost, is safe and environmentally friendly, and provides technical support for further preparation of high-purity Niraparib.

The invention relates to a time-domain seismic waveform inversion method by utilizing variable-step-length grid acoustic wave field simulation in the field of seismic data depth modeling. The method is characterized by carrying out subdivision by utilizing a variable-step-length grid in continuation depth direction; increasing calculating grid points on grid diagonals of a star convolution operator; obtaining an accurate relational expression of a wave field evolved with the time in a time-wave number domain; calculating convolution coefficients of the grid points according to wave field propagation speed of spatial points and time continuation step length to enable the error of wave number domain time evolution relationship corresponding to each point to be minimum; in the simulation space range, establishing speed indexes and calculating convolution operators corresponding to the speeds; and carrying out wave field forward simulation by utilizing the convolution operators and the speed indexes to enable error of a seismic wave field recorded in the field and a seismic wave field obtained through forward simulation to be reduced, and iteratively updating a speed model and finishing inversion. The method solves the problem of poor precision of time derivative approximate calculation caused by an existing algorithm and solves the problem of heavy wave field simulation calculation burden and low calculating efficiency.

The invention belongs to the technical field of biopesticides and in particular relates to a new azadirachtin microcapsule suspension and a preparation method and application thereof. The microcapsule suspension is characterized by comprising the following main ingredients in parts by weight: 0.1-5 parts of azadirachtin, 0.5-20 parts of organic solvent, 1-25 parts of wall material, 1-20 parts of emulsifying and dispersing agent, 0.2-6 parts of antifreezing agent, 0.01-1 part of preservative and the balance of purified water, wherein the total parts by weight are 100. The invention aims to solve the problem of environmental pollution and the problems in pest control effects caused by the deficiency of the biopesticide dosage forms in China. The microcapsule suspension has the following advantages: azadirachtin has the characteristics of lasting and stable efficacy and wide range of application; and the safety of existing azadirachtin cream during production and storage and transportation is improved.

The invention relates to a GPS-based intelligent pre-warning system for a hybrid power automobile. The functions of safety distance measurement, signal identification and warning in the running process of the automobile are achieved. The system structurally comprises a millimeter wave range radar, a GPS processor, a voice prompt system, an LCD, a temperature sensor, a humidity sensor, a radio receiving module and a storage module, wherein the millimeter wave radar is installed at the front end of the automobile, the GPS processor is responsible for calculating and comparing safety distance and controlling the millimeter wave radar, a voice warning device and the LCD to work by sending a signal, after the voice warning device receives the signal, a voice prompt is given to a driver, the current automobile speed and the distance between two automobiles are displayed by the LCD, input of the temperature sensor and input of the humidity sensor are used for correcting theoretical safety distance, parameters needed for calculation of the safety distance are stored in the storage module and can be called out by the processor, and the radio receiving module receives satellite signals for navigation.

The invention discloses a spinosad and chlopyrifos compound microsphere suspending agent and a preparation method thereof, and belongs to the technical field of pesticide production. The preparation method comprises the steps of taking spinosad and chlopyrifos as active substances, namely core materials, taking biodegradable polylactic acid as a sphere forming material, namely a wall material, dissolving the core materials and the wall material in a recoverable volatile organic solvent, preparing spinosad and chlopyrifos compound microspheres by a modified emulsification-solvent volatilization / extraction method, and preparing the spinosad and chlopyrifos compound microsphere suspending agent with stable performances with a wetting disperser, a thickener, an antifreezer, an antifoaming agent and water. In the compound microsphere suspending agent, the compounding ratio of the spinosad to the chlopyrifos has an obvious synergetic effect according to an indoor pesticide toxicity test, and as the suspending agent is wrapped by polylactic acid, the suspending agent has the advantages of safety, low toxicity, high efficiency, long lasting period, good stability and the like.

The invention discloses a biodegradable emamectin benzoate microsphere and a preparation method thereof. Emamectin benzoate serves as an active substance namely a core material, and a biodegradable material serves as a balling material namely a wall material. The biodegradable emamectin benzoate microsphere has the advantages of safety, low toxicity, high efficiency, long lasting period, high stability and the like. Compared with a conventional common high-polymer wall material microsphere, the biodegradable emamectin benzoate microsphere has the advantages of high environment compatibility and good material mechanics property; meanwhile, by changing a ratio of polylactic acid to polypropylene carbonate in the wall material, the slow release performance and the particle size of the microsphere can be regulated and controlled, the drug release performance is improved, the environmental friendliness is improved, the production cost is reduced, and requirements on pollution-free agricultural production are met.

The invention provides a device and a method for recognizing a microwave ablation needle; the microwave ablation needle comprises an ablation needle head, an ablation needle tube and a handle, wherein a tetrafluoroethylene insulator is arranged between the ablation needle head and one end of the ablation needle tube; the other end of the ablation needle tube is connected with the head of the handle; the ablation needle tube is internally provided with a microwave coaxial cable connected with the ablation needle head; the device for recognizing the microwave ablation needle comprises a memory and a controller, wherein the memory is arranged in the handle and is connected with the microwave coaxial cable; the model parameters of the microwave ablation needle are preset in the memory; and the controller is arranged in a microwave therapy apparatus and is connected with the memory by a cable. The method for recognizing the microwave ablation needle comprises the steps that the usage record of the microwave ablation needle is recorded by the memory, and the controller is used for reading and recognizing the information in the memory. The invention can be used for recognizing the microwave ablation needle in the using process, and distinguishing whether the microwave ablation needle is in accordance with the model or not.

The invention discloses a mobile phone wireless charging device with a street lamp as a carrier, and relates to the technical field of wireless charging devices. The mobile phone wireless charging device with the street lamp as the carrier solves the technical problem that a wireless charging device in the prior art has inconvenient maintenance and low popularity. The mobile phone wireless charging device includes a power source, the street lamp and a wireless charging device body. The street lamp and the wireless charging device body are connected in parallel with the power source, wherein the wireless charging device body comprises a smart manager, a power controller, a mobile phone detection and recognition module, a wireless charging transmitter, a wireless charging receiver and a codescanning terminal. A server pre-generates a two-dimensional code, a mobile phone scans and selects a wireless charging mode, the smart manager sends information to the server, the server responses and recognizes the operation and sends an instruction to a NB-IOT module of the smart manager, a control / communication circuit of the smart manager sends the instruction to the power controller, the hardware dormancy of the wireless charging transmitter is turned on, and charging is started. The mobile phone wireless charging device has a wide application range and low maintenance cost, and has wider application prospects compared with existing similar equipment.

The invention discloses a metaflumizone and chlorpyrifos mixture insecticide belonging to the agricultural chemical preparation technical field. Components and weight percentage content of the insecticide are: 0.5% to 10% of metaflumizone, 20% to 40% of chlorpyrifos, 8% to 15% of emulsifier, 5% to 15% of latent solvent, 1% to 5% of antifreeze, 0.3% to 8% of stabilizing agent, 0.2% to 4% of potentiating agent, 20% to 60% of solvent, 0.1% to 0.3% of pH value regulator. The mixture insecticide has obvious synergism when maintaining advantages of single dosage. The whole toxicity coefficient reaches 170 above. The mixture insecticide is more rapid than metaflumizone single dosage and longer than chlorpyrifos single dosage in lasting effect, which has obvious insecticidal activity for rice leafroller, pink stem borer and Chilo suppressalis. Compared with metaflumizone single dosage, the mixture insecticide has low agricultural chemical cost which reduces 30% above. The invention can be widely applied in field production and agricultural chemical manufacturing companies.

The invention provides a stage lighting cutting device capable of changing a light spot shape. The stage lighting cutting device capable of changing the light spot shape is mounted in a stage lamp. The stage lighting cutting device capable of changing the light spot shape comprises a machine body, a cutting plate component and a pushing device, wherein the machine body is fixedly mounted in the stage lamp, the cutting plate component is movably mounted on the machine body, and the pushing device is fixedly mounted on the machine body; the cutting plate component can shield and cut light beamsof a light source during moving on the machine body; the pushing device comprises a fixing base, a fixing sleeve and a movable sleeve, wherein the fixing base is fixedly mounted on the machine body, the fixing sleeve is fixedly mounted on the fixing base and arranged far away from the machine body, and the movable sleeve sleeves the fixing sleeve in a slideable manner; and a plurality of pushing rods are movably inserted in the side wall of the movable sleeve. Through the movable sleeve, the pushing rods can be driven to move to drive the machine body to move; after the machine body moves faraway from or approaches the light source of the stage lamp, the distance between the machine body and the light source can be changed to change the brightness of the light spot.

The invention discloses a manufacturing method of a counterweight block easy to weld. The method comprises the following steps of A1, selecting a metal or alloy material with the melting point approximate to that of a golf club head material, and using the metal or alloy material for casting an outer thin shell of the counterweight block; A2, filling the outer thin shell with a tungsten-based alloy; A3, sintering the outer thin shell and the tungsten-based alloy in a vacuum furnace. According to the manufacturing method, manufacturing methods of welded counterweight blocks in the prior art areimproved; firstly, the metal or alloy material with the melting point approximate to that of the golf club head material is selected to cast the outer thin shell of the counterweight block, and the metal thin shell is filled with the tungsten-based alloy in a spraying mode, so that the firmness and precision of welding are ensured. Besides, compared with the prior art, the manufacturing method avoids repeated use of dies during sintering, decreases the costs of die development and consumption, integrally reduces the production cost and enlarges the application range of the welded counterweight block.

The invention discloses an automobile safe distance automatic measuring and anti-collision device based on a GPS. The device comprises a sensing part, a sensor unit, a control unit and a display and warning unit, wherein a GPS processor is adopted in the control unit, a radio receiving module (5) receives a satellite signal and is connected with the input end of the GPS processor (6), the GPS processor (6) controls the sensing part (1) to transmit a beat frequency signal to a signal processing part (2), the signal processing part (2) feeds vehicle distance information to the GPS processor (6), the sensor unit and the GPS processor (6) modify the theoretical safe distance through an input bus, an LED displayer (9) is connected with the GPS processor (6) through an output bus to display current vehicle speed and the safe distance, and a voice prompt system (8) sends out a sound warning signal.

The invention provides a GPS-based electric automobile safety distance intelligent warning device comprising a millimeter wave ranging radar, a GPS processor, a voice prompt system, an LCD, a temperature sensor, a humidity sensor, a radio receiving module, and a storage module. The millimeter wave radar is installed at the front end of an automobile. The GPS processor is responsible for calculating and comparing safety distance, and controlling the millimeter wave radar, a voice warning device and the LCD to work by sending a signal. After receiving the signal, the voice warning device can prompt a driver with voice. The LCD displays the current automobile speed and distance between two automobiles. Input of the temperature sensor and input of the humidity sensor are used for correcting the theoretical safety distance. Parameters needed for calculation of the safety distance are stored in the storage module and can be called by the processor. The radio receiving module receives satellite signals and carries out navigation. By adopting the existing speed measuring function of the GPS, the structure is simplified, and the accuracy of measurement is improved.

The invention discloses a synergystic pleocidin microsphere suspending agent and a preparation method thereof. Pleocidin synergystic microspheres are prepared by taking pleocidin and piperonyl butoxide as core materials and taking biodegradable material polylactic acid as a wall material, and then the pleocidin synergystic microspheres are mixed with a wetting dispersant, aluminum-magnesium silicate being as a thickening agent, ethylene glycol being as an anti-freezing agent, an organic silicon defoamer and water so as to prepare the synergystic pleocidin microsphere suspending agent. According to the synergystic pleocidin microsphere suspending agent and the preparation method thereof, the disadvantages in the prior art are overcome, and higher biological activity can be achieved only by needing the low content of the prepared synergystic pleocidin microsphere suspending agent, and thus multiple problems in production application caused by low contents of effective components of the microsphere suspending agent are solved. The synergystic pleocidin microsphere suspending agent disclosed by the invention has a wide prevention and cure spectrum, is high in pesticide effect, high in stability, low in environmental pollution, long in lasting period, low in prevention and cure cost, and accords with the requirement on pollution-free agricultural production.

The invention discloses a Pyraclostrobin / Isoprothiolane microcapsule suspension, a preparation method therefor and an application of the Pyraclostrobin / Isoprothiolane microcapsule suspension. The microcapsule suspension is prepared from the following ingredients in percentage by weight: 2.5% to 5% of Pyraclostrobin, 10% to 21% of Isoprothiolane, 3% to 10% of capsule-core solvent, 15% to 25% of capsule wall material, 3% to 7.5% of emulsifier, 3.4% to 4.7% of auxiliaries and the balance of water. Compared with the prior art, the microcapsule suspension has the advantages that the microcapsule suspension is prepared from Pyraclostrobin and Isoprothiolane crude pesticides through compounding and microcapsulation technologies, and the two kinds of pesticide ingredients are encapsulated in non-toxic capsule membranes, so that the contact toxicity of pesticide products can be lowered, and the stability of effective ingredients is further improved greatly; in addition, the effective control time of the products can be prolonged obviously, so that the repeated consumption of pesticides can be effectively avoided, and the pollution to environments is alleviated; and the conventional chemical raw materials are used, so that the comprehensive cost is low, the microcapsule suspension is in line with the direction of development of pesticide preparations, and the application prospect is relatively extensive.

The invention relates to the technical field of official seal management, and discloses a unit official seal use management system, which comprises a main system which is connected with an applicationclient port, a principal port, a unit leader port, an official seal administrator port, scanning equipment and an official seal protection mechanism; the use method of the system comprises the following steps: applying for a client port to upload information, auditing a responsible person port of a related department, and submitting the information to a corresponding unit leader port after the information passes the auditing; after the auditing is passed, issuing an approval order number by a unit leader, or generating a two-dimensional code; and meanwhile, enabling the unit leader port to input the generated approval order number or two-dimensional code to the main system. According to the official seal management method and system, a single-approval and single-effect mode is adopted, sothat the phenomena of one-code multi-swiping and one-order multi-purpose are avoided, and the security of official seal management is improved; meanwhile, after being used, the official seal is automatically locked immediately, and the phenomenon of abuse of the official seal is avoided.

The invention discloses a bar code generation and identification method. The method comprises the following steps: (1) a user determines a bar code instruction according to requirements and sends thebar code instruction to a server; (2) the server receives the instruction and then processes the instruction to generate a random bar code; and (3) barcode recognition and application are carried outby using the intelligent equipment terminal. The method can effectively avoid the conditions of repeated errors of barcodes and multiple purposes of one code, is high in encryption degree, low in costand high in efficiency, and is convenient for large-scale popularization and application.

The invention provides a glaucoma aqueous humor drainage device, relates to the technical field of medical apparatuses and instruments, and solves the problems that when a person accidentally touches a handle for liquid suction, the handle is easily adjusted greatly, and then eyes of a patient are easily injured due to violent suction force; the repeated use phenomenon cannot be effectively avoided, and the repeated use phenomenon cannot be avoided through structural improvement. A glaucoma aqueous humor drainage device comprises a liquid pumping structure. And a cleaning structure is installed on the liquid pumping structure, a suction pipe is further installed on the liquid pumping structure, and an auxiliary structure is further installed on the liquid pumping structure. Due to the fact that the head end of the cutter is of the sharp structure, the cutter makes contact with the threads on the threaded rod, and the cutter forms a damage structure of the threads on the threaded rod, the threads on the threaded rod can be damaged through the cutter when the threaded rod is rotated, and repeated use of the liquid pumping structure is avoided.

The present invention provides a stage light cutting device capable of changing the shape of the light spot, which is installed in the stage light. The stage light cutting device includes a body fixedly installed in the stage light, and a cutting plate movably mounted on the body. assembly and a pushing device fixedly installed on the body, the cutting plate assembly can block and cut the light beam of the light source when moving on the body, the pushing device includes a fixed base fixedly mounted on the body, A fixed sleeve fixedly installed on the fixed base and set away from the body, and a movable sleeve slidably sleeved on the fixed sleeve, the side wall of the movable sleeve is movably interspersed with a number of pushing The rod can drive the push rod to move through the movable sleeve, thereby driving the body to move. After the body is away from or close to the stage light source, the distance between the body and the light source can be changed, thereby changing the brightness of the light spot.

The invention discloses an N-type monocrystalline silicon HBC solar cell structure and a preparation method thereof. The cell structure comprises a monocrystalline silicon substrate, a front surface structure and a back surface structure, the front surface structure comprises a silicon nitride layer, a silicon oxide layer and an n+ type crystalline silicon layer which are arranged from top to bottom, and the back surface structure comprises two unit structures which are alternately arranged left and right. Each unit structure comprises a p+ type crystalline silicon layer, a TCO conducting film and a metal electrode which are arranged from top to bottom, the other unit structure comprises an intrinsic amorphous silicon layer, an n+ amorphous silicon layer, a TCO conducting film and a metal electrode which are arranged from top to bottom, and the thickness of the p+ type crystalline silicon layer is equal to the sum of the thickness of the intrinsic amorphous silicon layer and the thickness of the n+ amorphous silicon layer. The TCO conducting films of the two unit structures are equal in thickness and are arranged in parallel, and a gap is reserved between the TCO conducting films. The cell structure can improve the passivation effect and the antireflection effect of the front surface. The invention also discloses the preparation method of the battery structure.

The invention discloses a synergistic spinosyn microsphere suspension and a preparation method thereof. Spinosyn is prepared by using spinosyn and piperonyl butyl ether as core materials and polylactic acid, a biodegradable material, as wall materials. Synergistic microspheres, and then mix spinosad synergistic microspheres with wetting and dispersing agent, thickener magnesium aluminum silicate, antifreeze ethylene glycol, silicone defoamer and water to make the synergistic type Spinosyn Microsphere Suspension Concentrate. The present invention overcomes the deficiencies of the prior art, and the prepared synergistic spinosad microsphere suspension only needs a relatively low content to possess high biological activity, thus solving the problem of low active ingredient content of the microsphere suspension Many problems in production and application are brought about. The synergistic spinosad microsphere suspension of the present invention has broad control spectrum, high drug efficacy, strong stability, little environmental pollution, long effective period, low control cost, and meets the requirements of pollution-free agricultural production.

The invention discloses a metaflumizone and chlorpyrifos mixture insecticide belonging to the agricultural chemical preparation technical field. Components and weight percentage content of the insecticide are: 0.5% to 10% of metaflumizone, 20% to 40% of chlorpyrifos, 8% to 15% of emulsifier, 5% to 15% of latent solvent, 1% to 5% of antifreeze, 0.3% to 8% of stabilizing agent, 0.2% to 4% of potentiating agent, 20% to 60% of solvent, 0.1% to 0.3% of pH value regulator. The mixture insecticide has obvious synergism when maintaining advantages of single dosage. The whole toxicity coefficient reaches 170 above. The mixture insecticide is more rapid than metaflumizone single dosage and longer than chlorpyrifos single dosage in lasting effect, which has obvious insecticidal activity for rice leafroller, pink stem borer and Chilo suppressalis. Compared with metaflumizone single dosage, the mixture insecticide has low agricultural chemical cost which reduces 30% above. The invention can be widely applied in field production and agricultural chemical manufacturing companies.