57results about How to "Consistency is easy to control" patented technology

The invention discloses an array ion migration tube, which is designed and manufactured by array integration. The migration tube can simultaneously provide a plurality of detection channels with same electric fields and ion gate pulses, achieve the integrated application of a variety of detection means, and improve the detection capability of a migration spectrometer. The migration tube is characterized in that the integrated array structure consists of an array sampling channel, ionization sources, a reaction zone, an ion gate, a drift area, a grid, a Faraday plate, and the like. The new ion migration tube can use different ionization sources, drift gas, doping gas, and the like, and therefore realizes the high-selective determination to a material to be detected and the uniformity of influencing factors of the migration rate in the influencing factors, and greatly reduces the false alarm rate of the migration spectrometer.

The invention discloses an electroporated chip and a porous plate device for electroporation. The porous plate device comprises a plurality of electroporated chips, a porous plate, a voltage source and an electrical connecting part, wherein the electroporated chip comprises a baseplate and electrodes, the baseplate is used for bearing the electrodes, every two electrodes are used as a pair, each electrode comprises an anode and a cathode which are oppositely arranged, and the anode and the cathode are mutually nested; the porous plate comprises a plurality of holes, the porous plate is placedon the baseplate of each electroporated chip to form a cavity body, and the bottom of each hole corresponds to one electroporated chip; the voltage source is used for setting and generating pulse voltages; and the electrical connecting part is used for connecting the voltage source and the electroporated chips. The device of the invention has higher electroporation effect and can realize large-batch high-efficiency sample processing.

The invention discloses a flow electroporation device and a system. The system comprises a flow electroporation device, an injection pump and a voltage source, wherein the flow electroporation device comprises a substrate, electrodes arranged on the substrate, a channel for limiting fluid to flow, a top cover of an inlet and an outlet of fluid, the electrodes are arranged in a crossing way; each pair of electrodes comprise an anode and an cathode which are oppositely arranged, and the channel is arranged on the electrodes; the top cover is arranged above the channel, and the injection pump isconnected to the inlet and the outlet of the top cover in the flow electroporation device through a pipeline and is used for controlling the flow rate of the fluid; and the voltage source is connected with the electrodes through electric connecting pieces and is used for setting and producing pulse voltage. The flow electroporation system utilizes the fluid channel and the injection pump connected with the fluid channel to realize the continuous flow of various suspensions in the fluid channel, so that the fast treatment of a large number of samples can be continuously realized in the processthat cells are electroporated.

The invention relates to the technical field of sensor processing, and especially relates to a composite sensor and a production method. The composite sensor comprises a silicon substrate, and at least one first preset cavity, at least one second preset cavity and at least one third preset cavity in the silicon substrate. A plurality of semiconductor doped resistors for forming an acceleration sensor, a pressure sensor and a temperature sensor are formed at preset positions on the surface of the silicon substrate. The semiconductor doped resistors are electrically connected with conductive wires. A first release slot is formed on suspended silicon film at the upper side of the at least one first preset cavity. A second release slot is formed on suspended silicon film at the upper side of the at least one third preset cavity. The first release slot is combined with the second release slot, thus forming a suspended release structure. A limiting baffle plate is arranged out of the movable structure of the acceleration sensor. The limiting baffle plate has precise overload limiting protection effect. Moreover, an overload limiting device is simple in structure. The production process is relatively easy to grasp. The batch production of the product can be realized.

The invention discloses a multiplexer-demultiplexer for the mode multiplexing-wavelength division multiplexing hybrid technology. The multiplexer-demultiplexer comprises a multi-mode input waveguide, a 1*2M mode multiplexer with an input port and 2M output ports, and M two-way (P+1)*(P+1) array waveguide grating wavelength division multiplexers with the same structures. The input port of the 1*2M mode multiplexer is connected with the multi-mode input waveguide. The 2M output ports of the 1*2M mode multiplexer are divided into M pairs with every two sequentially adjacent ports as a group, and the two input ends of each two-way (P+1)*(P+1) array waveguide grating wavelength division multiplexer are connected with a pair of output ports of the 1*2M mode multiplexer. The multiplexer-demultiplexer has the advantages that the structure is simple, design is convenient, the number of required array waveguide grating wavelength division multiplexer-demultiplexers is only half of the number in an original scheme, the device size is greatly reduced, and the consistency of the array waveguide grating wavelength division multiplexer-demultiplexers is easier to control.

The invention discloses a light emitting diode (LED) fluorescent powder spraying process, which comprises the following steps: (1) uniformly mixing fluorescent powder, a glue material and a volatile solvent to prepare mixed solution of the fluorescent powder, and loading the mixed solution in a glue spraying machine; (2) fixing the bracket of an LED chip which is soldered with a wire on a clamp; (3) making a mold according to the structure of the LED bracket and the LED chip, wherein the baffle plates of the mold are positioned on the upper part of the LED chip and form a certain gap with the upper part of the LED chip, and the horizontal distances between the baffle plates and the periphery of the LED chip are equal; (4) the glue spraying machine sprays the mixed solution of the fluorescent powder onto the surface of the chip through the baffle plates, wherein the mixed solution of the fluorescent powder covers the side faces and the top part of the chip completely; and (5) violating the volatile solvent with the left fluorescent powder coated on the chip, and loading and forming the appearance glue. Compared with the prior art, the LED chip manufactured by using the LED fluorescent powder spraying process has the advantages that: the thickness of fluorescent powder is more uniform; the color zones of the product are centralized; and the consistency is easier to control.

The invention belongs to the field of medicine and relates to a profile model for simulating the performance of the tumor contrast-enhanced ultrasonography and applied in the tumor diagnosis and treatment study. The profile model is characterized by comprising a tumor gel used for simulating a tumor, and a normal tissue gel used for simulating the surrounding normal tissue. The tumor gel comprises a nano micro-bubble ultrasonic contrast agent. The nano micro-bubble ultrasonic contrast agent is distributed uniformly, good in dispersibility, strong in imaging effect in vivo and in vitro, and better in stability in the high/low-frequency ultrasonic sound field. Therefore, the profile model facilitates the contrast-enhanced ultrasonic scanning process of a user, the practice of the tumor aspiration biopsy and the practice of the tumor ablation therapy with the help of the high/low-frequency ultrasonic guidance.

The invention relates to a simulator model used for simulating tumor ultrasonic radiography, comprising a tumor gum for simulating a tumor and a normal tissue gum for simulating the normal tissue around; the tumor gum shows high echo under a two dimension ultrasonic imaging mode and a harmonic wave ultrasonic imaging mode and then shows equal echo and no echo; and the normal tissues always shows the equal echo and no echo under the two dimension ultrasonic imaging mode and the harmonic wave ultrasonic imaging mode. The simulator can simulate the acoustics characteristics of the liver cancer under the ultrasonic radiography, which benefits the usage of the ultrasonic radiography scanning method and the exercise of tumor puncture biopsy and tumor ablation treatment under the guiding of the ultrasonic wave.

The invention belongs to the field of medicine, and relates to a simulation model for evaluating a tumor ablation range through ultrasonic mono-modal image fusion. Tumor glue is embedded in normal tissue glue, so that a pre-ablation model is formed for ablation; and after the ablation, the dissolved tumor glue and some dissolved normal tissue glue around are absorbed out, and ablation glue is poured, so that a post-ablation model is formed which is available for evaluation of the tumor ablation range through ultrasonic mono-modal image fusion. The normal tissue glue includes carrageenan, and the normal tissue glue, under a two-dimensional ultrasonic imaging mode, shows equal echo. The tumor glue, under the two-dimensional ultrasonic imaging mode, shows high echo. The ablation glue includes carrageenan, a special dye and an ultrasonic contrast agent, and the ablation glue, under the two-dimensional ultrasonic imaging mode, shows high echo. When the simulation model is generally observed by naked eyes, the normal tissue glue is represented to be colorless and semitransparent, the tumor glue is white and non-transparent and while the ablation glue is colored and non-transparent, showing strong contrast and facilitating distinguishing. Therefore, by virtue of the simulation model, the tumor ablation range can be accurately evaluated; and the simulation model is suitable for teaching and training of tumor ablation technology.

The invention discloses a feed for injection molding of a zirconium oxide ceramic and a preparation method thereof. The feed is prepared from yttrium-stabilized zirconium oxide powder and an organic mixture, wherein the yttrium-stabilized zirconium oxide powder accounts for 75 wt%-92 wt%, and the organic mixture accounts for 8 wt%-25 wt%. According to the invention, an organic zirconium precursoris creatively introduced, so the zirconium oxide ceramic feed is optimized; the organic zirconium precursor has good flowability and brings about 30 wt% of zirconium oxide yield after sintering; and thus, the problems of high organic matter content and considerable sintering defects of traditional zirconium oxide ceramic feeds are solved, and the zirconium oxide ceramic feed with high solid content and good flowability is obtained.

The invention discloses a microphone. The microphone comprises a first substrate with an inner cavity with an opened end, and further comprises a vibrating diaphragm and at least one cantilever arranged on the first substrate and suspended at the upper side of the inner cavity; the cantilever and the vibrating diaphragm are separated through an interval part, and the vibrating diaphragm and the inner cavity of the first substrate form an acoustic sealing cavity in a surrounding way; and a detection structure is arranged on the vibrating diaphragm and the cantilever. By adopting the cantileverstructure design, the space between the vibrating diaphragm and the cantilever is opened, and the airflow can smoothly pass through the cantilever when the vibrating diaphragm is in vibration, therebygreatly improving the signal-to-noise ratio of the microphone. Furthermore, the vibrating diaphragm and the inner cavity of the first substrate form the acoustic sealing cavity in the surrounding way, the air elasticity in the acoustic sealing cavity leads the sensitivity of the whole microphone; in the manufacturing the microphone, the parameter consistency of the acoustic sealing cavity can beeasily controlled, and the sensitivity consistency of the microphone can be guaranteed.

The invention provides silver electrocondution slurry for a solar battery. Based on the mass percentage content of the silver electrocondution slurry, the silver electrocondution slurry comprises, by mass, 74-86% of silver powder, 1-3% of aluminum powder, 2-8% of lead oxide powder, and 5-20% of organic carriers. The electrocondution slurry is strong in adhesive force, a prepared solar battery piece is small in ohmic resistance, and the solar battery piece is high in photon-to-current conversion efficiency. The silver electrocondution slurry for the solar battery lays a foundation for the further development of the solar energy. Meanwhile, material is simple and easy to obtain, so that compared with existing adhesion agent made of glass powder, the silver electrocondution slurry for the solar battery simplifies an adopted complicated process and reduces cost. Besides, the performance of the material, such as consistency, is easy to control, and the prepared electrocondution slurry is stable in performance.

The invention discloses an LED (light emitting diode) lamp which comprises a baseplate, wherein the baseplate is provided with an LED assembly, the surface of the LED assembly covers a transparent heat conductor, and the periphery of the LED assembly is provided with a retaining wall; the LED assembly is also connected with a transparent lamp shade, the transparent lamp shade is provided with a reflecting aperture, and the baseplate and the transparent lamp shade form a seal cavity chamber; and the LED assembly is arranged in the seal cavity chamber, the transparent lamp shade is provided with a phosphor powder mixture, and the phosphor powder mixture is not contacted with the LED assembly. According to the invention, a spotlight transparent lamp shade can effectively lead an irradiate ray light beam of the LED lamp to concentrate, the penetrating power is strong and the illumination intensity is enough, thereby realizing spotlight effects of different angles; and a light expanding transparent lamp shade can effectively lead the rays of the LED lamp to irradiate in an angle greater than 270 degrees, the irradiation is uniform, and a glare problem is solved.

The invention relates to a metal coiled pipe fan assembly device. A metal coiled pipe fan assembly machine comprises a stander, and a bracket, a transverse guide rail, a power transmission mechanism,a lateral plate locking mechanism and an enclosure plate pressing mechanism which are mounted on the stander. The transverse guide rail is mounted on the bracket. The metal coiled pipe fan assembly machine has the advantages of high production efficiency, high assembly quality, low product rejection rate, reduction of production cost, good service performance and high automatization degree.

The invention provides an induction heating device, which comprises a device shell, a power supply and a control unit, and is characterized in that the device shell comprises a cavity for accommodating at least one part of an aerosol generating substance, a heating base body arranged in the cavity, and an inductor capable of generating a magnetic field axis; the control unit is connected to the inductor and is configured to provide high-frequency alternating current for the inductor; the inductor is a metal sheet with high conductivity, and the metal sheet is arranged to surround at least onepart of the outer surface of the cavity to form at least one layer of winding. The inductor is larger in effective cross section and better in electromagnetic conversion efficiency, the temperature measurement circuit is printed on the heating base body, temperature detection of the heating base body is more accurate and convenient, the manufacturing process is mature and simple, consistency is excellent, and the defects of butt welding of thermocouple wires on the surface of a heating body in the prior art are overcome.

The invention relates to a method for preparing a ruthenium nitrosyl nitrate solution, and belongs to the technical field of precious metal compound preparation. The method comprises: introducing ruthenium tetroxide gas into a nitric acid aqueous solution, and carrying out an absorption reaction to prepare a ruthenium absorption liquid; adding a reducing agent into the ruthenium absorption liquid,and reacting at 5-15 DEG C to obtain a ruthenium absorption liquid containing nitrosyl; adding a pH regulator A, regulating the pH value to 5-7, adding a pH regulator B, regulating the pH value to 8-10 to obtain a ruthenium precipitate, and repeatedly filtering and washing to remove impurities; and adding a nitric acid aqueous solution, and carrying out a reflux reaction for more than 2 hours toobtain a ruthenium nitrosyl nitrate solution; According to the invention, the ruthenium nitrosyl nitrate solution prepared by the method has the characteristics of low chlorine content, low nitric acid content, low metal impurity content, low corrosion and high stability.

The invention relates to a light diffusion light-emitting diode (LED) lamp, which aims at solving the problems that the effect is not good, the luminous flux and the color temperature are not stable when the existing light diffusion cover diffuses light of the LED lamp; and since aluminum blocks are mostly used for the radiation of the existing LED lamp, the amount of the used materials is large and the cost is high. The light diffusion LED lamp mainly comprises an LED blue light chip and a transparent light guide column, wherein an enclosing wall which is made of a light reflecting and heat conducting material is arranged on the substrate of the LED blue light chip, the chip is arranged in the enclosing wall and the upper surface of the substrate in the enclosing wall is covered with a transparent heat conducting layer; and a cover plate is arranged at the lower part of the transparent light guide column, step slots which are matched with the LED blue light chip are arranged on the bottom surface of the cover plate, light reflecting layers are arranged on the side wall of a second step slot and the upper surface of the cover plate, a fluorescent layer is arranged on the top surface of the second step slot and a light reflecting structure is arranged at the top of the transparent light guide column. The light diffusion LED lamp has the advantages that the light distribution effect of different curves can be realized, the stability of the luminous flux, color temperature and electric parameters of the entire system is improved, the light attenuation is reduced and the luminous flux maintenance factor is improved.

The invention discloses a processing method for processing a rectangular photovoltaic cell silicon wafer by using a primary single crystal silicon rod. The method comprises the following steps of step 1, determining eight longitudinal tangent lines formed by four straight lines shaped like a Chinese character "jing" and four edge straight lines on a cross section plane of the primary single crystal silicon rod; step 2, longitudinally cutting the primary single crystal silicon rod to obtain rectangular silicon ingots; step 3, splicing the rectangular silicon ingots to obtain a spliced silicon ingot; and step 4, cutting the spliced silicon ingot by using multiple planes to obtain the silicon wafer of a single crystal silicon photovoltaic cell. Compared with the prior art, the processing method is favorable for using a large-diameter single crystal silicon rod, is favorable for improving the distribution uniformity and symmetry of impurities doped in the silicon wafer, is favorable for improving the working production efficiency, and is favorable for reducing the head and tail slice loss; and in the slicing process, cutting silicon powder can be discharged, the cutting environment is improved, the production efficiency is improved, and the product quality is improved.

The invention discloses an automatic centering alignment device and an alignment method for assembling a torque sensor. The automatic centering alignment device comprises a working platform and a control cabinet, wherein the control cabinet is internally provided with a computer and a control center; the working platform is provided with a servo motor, a reducer, a coupling, a cylinder, a fixture and an EPS assembly; the EPS assembly comprises a torque sensor; the computer is internally provided with a signal processing module, and the control center is internally provided with a servo execution module, a pneumatic execution module, and a control input and output module. The invention has high production efficiency, accurate centering alignment, and easy control of centering consistence.

Disclosed is a testing method for judging consistency of original emission performance of an engine. The testing method includes taking out exhaust gas directly from an engine exhaust pipe to perform an analytical test of exhaust pollutant samplings, and drawing an exhaust emission curve graph according to test data of sampling analysis 40 seconds before the test prior to determining an emission peak value T; and comparing a total amount of emission S, the Peak value T and an emission performance set value according to the total amount of the emission S calculated from the exhaust emission curve graph to judge the consistency of the original emission performances of the engine. Compared with emission tests of a whole vehicle hub-turning rack in the prior art, the testing method for judging the consistency of the original emission performance of the engine is simple and free of affects of factors of a post-processing system, electronic control unit data and personnel operating and the like when the whole vehicle is tested; the amount of the original emission of the engine data can be directly and objectively reflected, a production consistency of the engine can be measured and evaluated, and basis for controlling the production consistency of the engine can be provided.

The invention relates to an application of a traditional Chinese medicinal composition in preparing medicines for reducing blood fat or reducing uric acid. The traditional Chinese medicinal composition consists of the following components in parts by weight: 20 parts of folium cortex eucommiae, 0.05-2 parts of rhizoma gastrodiae and 1-10 parts of flos chrysanthemi or flos chrysanthemi indici. Preferably, the traditional Chinese medicinal composition consists of the following components in parts by weight: 20 parts of the folium cortex eucommiae, 0.1-1 part of the rhizoma gastrodiae and 1-5 parts of the flos chrysanthemi or flos chrysanthemi indici. The flos chrysanthemi is any one or any mixtures of Hao chrysanthemum (flos chrysanthemi produced from Hao County of Anhui Province), Chuzhou chrysanthemum (flos chrysanthemi produced from Chuzhou of Anhui Province), florists chrysanthemum and chrysanthemum morifolium. The medicines for preventing or treating hyperlipidemia or hyperuricemia further comprise pharmaceutically acceptable medicinal adjuvants. with the application of the traditional Chinese medicinal composition provided by the invention, the problems of existing chemically synthetic medicines which, on reducing the blood fat and reducing the uric acid, can damage metabolic mechanism of body and cause side effects to the body and the problems that the chemically synthetic medicines are frequently taken, complex in Chinese parent medicine prescription, poor in compatibility and are consistently taken can be effectively solved.