20 results about "Positively charged particle" patented technology

This invention discloses an electrophoretic electronic paper, comprising an electrode plate, a capsule, and charged particles. There is only one electrode plate, and the capsule is disposed on one side of the electrode plate. Multiple charged particles are encapsulated within the capsule. Each charged particle includes a positively charged particle and a negatively charged particle that can combine to form a whole. Each of the positively and negatively charged particles is half of the whole, and the positively and negatively charged particles are of different colors. By applying a positive voltage to the electrode plate, the half of the particle with the negative charge will rotate towards the electrode plate, while the half with the positive charge will rotate away from the electrode plate, displaying the color of the negatively charged particle, and vice versa. Furthermore, since the positively and negatively charged particles are encapsulated as a whole, only one type of charged particle is encapsulated within the capsule, allowing for a single encapsulation per capsule. By adjusting the structure of the charged particles, the number of encapsulation steps and electrode plates is reduced, simplifying the manufacturing process and wiring.

The application discloses a cleaning method for removing a suction pen mark on a surface of a silicon carbide substrate and the silicon carbide substrate, and belongs to the technical field of silicon carbide detection. The cleaning method comprises the following steps: (1) using a mixed solution of ammonia and hydrogen peroxide to clean the surface of the substrate, so as to pre-oxidize the surface of the substrate; (2) using ozone water to clean the pre-oxidized substrate, so as to obtain a substrate containing an oxidation layer; and (3) using an acidic cleaning solution with a pH value of 2.0-3.5 to clean the substrate containing the oxidation layer, and then performing water washing and blowing dry, so as to obtain a cleaned silicon carbide substrate. The method can change the Zeta potential of the oxidation layer on the surface of the substrate, so that the surface potential of the substrate is not lower than 0 mV, thereby reducing the adsorption of positively charged particles on the suction pen, achieving the technical effect of completely removing the suction pen mark, and improving the quality of the silicon carbide substrate.

The utility model discloses environment-friendly waterproof wear-resistant nylon cloth which comprises a base cloth layer, the base cloth layer is formed by weaving spinning threads, the spinning threads are composed of nylon wires and conductive wires, the nylon wires and the conductive wires are connected in a twisting and weaving mode, light-resistant materials are immersed in the base cloth layer, a lining layer is arranged on the inner surface of the base cloth layer, and the lining layer is arranged on the outer surface of the base cloth layer. And the lining layer is connected with the base cloth layer through the adhesive layer. According to the environment-friendly waterproof wear-resistant nylon cloth, through cooperation of the base cloth layer, the spinning threads, the light-resistant material, the lining layer and the adhesive layer, the durability can be improved, in addition, the conductive wires mixed into the base cloth layer can eliminate static electricity on the base cloth layer through corona discharge and leakage effects, and through cooperation of the negative ion release function of the lining layer, the durability of the nylon cloth is improved. Positively charged particles such as bacteria and dust in surrounding air can be combined with negative oxygen ions and then gathered into balls to fall on the ground, so that the surface of the nylon fabric is not easily attached by the particles such as bacteria and dust.

There is disclosed a method of vectoring a rocket propulsion system producing a partly ionized exhaust jet along a longitudinal jet axis and through a nozzle. One or more pairs of electrodes may straddle the exhaust jet inside the nozzle or at a nozzle exit. A high-voltage DC supply may energize one or more of the electrode pairs with a strong electric field. A field intensity of the electric field may be scaled by the DC supply to proportionately deflect the exhaust jet away the longitudinal axis by a desired vectoring angle. The particular pair voltages sent to each pair of electrodes by the DC supply may be weighted for establishing a desired azimuth for the deflection. The strong electric field may laterally accelerate positively charged particles in the exhaust jet toward a negatively charged side of the one or more electrode pairs, thereby achieving the desired deflection and azimuth.

The invention discloses a graphene oxide cationic anti-haze agent, and relates to the technical field of air pollution abatement, and the graphene oxide cationic anti-haze agent comprises the following raw materials by mass: 6-60% of highly substituted cationic starch; 0.01 to 1 percent of graphene oxide; 1 to 10% of N, N-dimethyl formamide; 0.5 to 10 percent of cationic polyvinylpyrrolidone; 0.1%-1% of an antioxidant; 0.1 to 3 percent of halogenated ammonium salt; 0.1 to 3 percent of a cosolvent; 1.0 to 20 percent of low carbon polyol; 0.1 to 10 percent of methylal; 5.0%-50% of absolute ethyl alcohol; 5.0 to 60 percent of deionized water; when being sprayed (atomized) in the atmosphere with serious haze, the haze-removing agent can destroy negatively charged aerosol, generate demulsification and accelerate coagulation and sedimentation of positively charged particles, so that the air quality is improved, the haze is eliminated, and transparent and fresh air is restored.

A vacuum layer deposition apparatus includes a vacuum coating chamber with an inner space; a material source to generate electrically positively charged particles of a material to be deposited on a substrate in said inner space; a substrate holder with an extended metal or dielectric material surface exposed to said inner space; and a Rf plasma source comprising: first and second electrodes Rf-connectable or Rf-connected to first and second taps of a Rf generator, respectively. Said first and second electrodes include first and second electrode surfaces, respectively, of metal or of a dielectric material which are freely exposed to said inner space. Said extended surface of said substrate holder is at least a part of said first electrode surface and said second electrode surface is larger than said first electrode surface by at least a factor of 1.5. A method includes vacuum-process depositing a layer on a substrate.

The present invention discloses an air purification system based on the Internet of Things, comprising a detection module, a control module, and an execution module. In the present invention, the purification system is provided with an ionization chamber and an adsorption chamber, a separation chamber is provided between the ionization chamber and the adsorption chamber, and a negative ion atomizer is provided on the air intake pipe. The negative ion atomizer can generate a large amount of water mist. The negative ions in the water mist attract the positively charged particles, causing the oil fume particles to combine with the water mist to form larger mixed particles. Under the action of centrifugal force and gravity, the oil and gas are separated, thereby reducing the oil fume particles in the gas and the oil fume entering the adsorption chamber, thereby reducing the amount of adsorption on the adsorption plate, helping to reduce the oil stains on the adsorption plate, thereby maintaining a good purification effect and high purification efficiency for the purification system for a long time, and at the same time reducing the frequency of cleaning the adsorption plate and reducing the maintenance cost of the purification system.

The utility model provides an anti-charged particle pollution object carrying workbench, which comprises a laser emitter and an object carrying table, an insulating plate is arranged at the bottom of the object carrying table, the object carrying table is made of metal, the object carrying table is positively charged, and the object carrying table is positioned on the lower side of the laser emitter. When the laser processing device is used, the binding posts are positively charged, so that the objective table is positively charged, a laser processing product generates positively charged particles without electrons, and due to the fact that the objective table is positively charged, the positively charged particles repel each other and cannot be deposited on the objective table. The cleanliness of the objective table is improved, and the product machining quality is improved.

There is disclosed a method of vectoring a rocket propulsion system producing a partly ionized exhaust jet along a longitudinal jet axis and through a nozzle. One or more pairs of electrodes may straddle the exhaust jet inside the nozzle or at a nozzle exit. A high-voltage DC supply may energize one or more of the electrode pairs with a strong electric field. A field intensity of the electric field may be scaled by the DC supply to proportionately deflect the exhaust jet away the longitudinal axis by a desired vectoring angle. The particular pair voltages sent to each pair of electrodes by the DC supply may be weighted for establishing a desired azimuth for the deflection. The strong electric field may laterally accelerate positively charged particles in the exhaust jet toward a negatively charged side of the one or more electrode pairs, thereby achieving the desired deflection and azimuth.

The invention relates to a non-woven fabric and / or fabric structure infiltrated and / or infiltrated with macroscopic three-dimensional positively charged particles, the macroscopic three-dimensional positively charged particles being tetrapod zinc oxide and in the fabric structure and / or the non-woven fabric structure, there is an occlusion structure having macroscopically three-dimensional positively charged particles disposed on the surface of the fabric structure and / or non-woven fabric structure. The invention further relates to a method for producing a non-woven fabric structure and / or a fabric structure having macroscopically three-dimensional positively charged particles. The invention also relates to a method for producing a non-woven fabric structure and / or a fabric structure having macroscopically three-dimensional positively charged particles.

The present application relates to a non-contact detection device for detecting whether an object's surface is charged, which includes: a walking device, an insulating telescopic rod, a first electric field sensing component, a second electric field sensing component, a first signal receiving device, a second signal receiving device, and a power supply device. Since the first electric field sensing component and the first signal receiving device are arranged in correspondence, the device uses an electric field sensor to detect whether the surface of an object is charged; the second electric field sensing component and the second signal receiving device are arranged in correspondence, and two separated spaces are provided in the second electric field sensing component, and the two spaces are respectively provided with positively charged particles and negatively charged particles. The device uses the characteristic that the charged particles are arranged in a certain direction under the influence of the electric field force in the electric field to detect whether the surface of the object is charged. The device will not be damaged by high voltage electricity, and uses two methods to adapt to high voltage electricity and ordinary electricity scenarios respectively, and uses the walking device and the insulating telescopic rod to expand the detection range, which is convenient for safety detection.

The application provides a semiconductor process equipment, comprising: a process chamber and a vacuum pumping device, the process chamber comprising a generating cavity, a processing cavity, a first channel and a shunt channel, the generating cavity being used for generating plasma, the processing cavity being used for carrying out etching process of a wafer, two ends of the first channel being communicated with the generating cavity and the processing cavity respectively, the processing cavity being located at the side of the first channel, two ends of the shunt channel being communicated with the first channel and the vacuum pumping device respectively; a deflection device, used for generating at least one deflection field in the first channel, so that at least part of the positively charged particles in the plasma generated in the generating cavity enter into the processing cavity, the shunt channel being used for guiding at least part of the neutral particles separated by the deflection device to the vacuum pumping device; and a focusing device, arranged in the processing cavity, used for focusing the positively charged particles entering into the processing cavity to form a charged particle beam, so as to carry out etching on the wafer through the charged particle beam, thereby realizing maskless patterning etching.

Provided is an in-vehicle installation capable of reducing the situation that a driver slightly feels uncomfortable due to the fact that particles, gas or the like floating in a vehicle are positively charged. A vehicle interior object (1) is provided with a charged object (10) having a negatively charged surface. At least the surface layer (12) of the charged object (10) is composed of a fiber assembly (12A) containing a plurality of conductive fibers (12a, 12a,...). The conductive fibers (12a, 12a,...) are fibers in which the conductive material (14) is negatively charged by exposing the conductive material (14) from the resin material (13).

This invention discloses a purification device for ultra-high vacuum environments, comprising a cylinder, an isolator, a magnet, and an ionization filament. The cylinder has an open first end and a closed second end. The isolator is disposed within the cylinder, dividing the internal cavity of the cylinder into an ionization cavity near the first end and a collection cavity near the second end along the axial direction of the cylinder. The magnet passes through the isolator and has a perforation connecting the ionization cavity and the collection cavity. The two magnetic poles of the magnet are distributed along a direction perpendicular to the central axis of the cylinder. The ionization filament is at least partially disposed within the ionization cavity for ionizing the gas within the ionization cavity. The ionization filament of this invention can ionize the gas into negatively charged particles and positively charged particles. These negatively charged and positively charged particles, influenced by the magnetic field, undergo spiral motion within the perforation on the magnet and are collected into the collection cavity.

The present specification relates to accelerating electrically charged particles. Gas is introduced into a vacuum chamber through at least one nozzle which opens into said vacuum chamber. Focusing an ionizing beam into the gas generates a plasma having a spatial distribution determined by the duration and manner of focusing the ionizing beam's laser pulses. Linearly polarized electromagnetic pulses of a wavelength at least ten times the wavelength of the ionizing beam's laser pulses tear electrons off the plasma, wherein said electromagnetic pulses include at most five optical cycles. The tearing-off of electrons is performed along a straight line defined by the resulting electric field strength of the electromagnetic pulses and simultaneously with the tearing-off of electrons, the positively charged particles of the remaining plasma with a net positive total charge are accelerated through exposure to Coulomb electrostatic forces.

The present invention relates to the technical field of ESD protection circuits, and discloses a silicon-gate MOS integrated circuit ESD protection circuit structure, comprising an input circuit, the input circuit being electrically connected to a protection resistor, the protection resistor being electrically connected to a MOS integrated circuit tube on a side away from the input circuit, and the outer wall of the MOS integrated circuit tube being uniformly fixedly connected to a discharge needle. When in use, the silicon-gate MOS integrated circuit ESD protection circuit structure allows air from a cooling fan to enter an air inlet, evenly blowing negative ions generated by a negative ion generator into the interior of the protection tube. These negative ions can eliminate positively charged particles near the MOS integrated circuit tube, thereby preventing the MOS integrated circuit from generating static electricity. When static electricity occurs in the circuit and affects the MOS integrated circuit tube, the static electricity in the circuit can be promptly eliminated through the discharge needle, preventing the MOS integrated circuit from being affected by the static electricity.

The invention provides a cutting line cleaning device and a slicing machine, and relates to the technical field of cutting lines, the cutting line cleaning device comprises a fan and a cleaning mechanism, the cleaning mechanism comprises a cleaning cavity allowing a cutting line to penetrate through, the extending direction of the cutting line is perpendicular to the vertical direction, and negative ions are released in the cleaning cavity; the negative ions can be combined with the positively charged particles on the surfaces of the cutting lines, so that the positively charged particles settle; the cleaning cavity comprises an air inlet, the air inlet communicates with an air supply pipeline of the fan, and directional airflow parallel to the vertical direction is formed in the cleaning cavity and used for cleaning impurities on the surfaces of the cutting lines. Impurities and positively charged particles adhered to the surface of the cutting line are brought into the negative pressure environment at the bottom of the cleaning chamber through the dual effects of directional airflow in the positive pressure direction and negative ion cleaning, and cleaning of the surface of the cutting line is achieved; the cutting device does not need to be closed during cleaning, and the surface of the cutting line is cleaned online in real time before the cutting line cuts materials.

The invention discloses a lithium / sodium metal battery electrolyte functional additive and a preparation method and application thereof, and relates to the technical field of lithium / sodium battery electrolyte preparation. The functional additive is a peelable layered material with permanent positive charges, and is stably suspended in the lithium / sodium metal battery electrolyte. The functional additive provided by the invention has both anion adsorption selectivity and migration targeting. A layer of compact solid electrolyte interface film rich in sodium fluoride is constructed in situ on the surface of a sodium metal negative electrode by utilizing an interface electrostatic adsorption-electric field driven migration mechanism of suspended state positively charged particles, and dendritic crystal growth is remarkably inhibited, so that the cycle life of the battery is prolonged, and the coulombic efficiency of the battery is improved. According to the invention, the problem of dendritic crystal growth of the existing lithium / sodium metal battery is solved.

A vacuum layer deposition apparatus includes a vacuum coating chamber with an inner space; a material source to generate electrically positively charged particles of a material to be deposited on a substrate in said inner space; a substrate holder with an extended metal or dielectric material surface exposed to said inner space; and a Rf plasma source comprising: first and second electrodes Rf-connectable or Rf-connected to first and second taps of a Rf generator, respectively. Said first and second electrodes include first and second electrode surfaces, respectively, of metal or of a dielectric material which are freely exposed to said inner space. Said extended surface of said substrate holder is at least a part of said first electrode surface and said second electrode surface is larger than said first electrode surface by at least a factor of 1.5. A method includes vacuum-process depositing a layer on a substrate.

To provide a pollen catching performance-improved charged wire net screen 2d capable of easily catch negatively charged particles (negatively charged pollen 5d) when a wire net 12 is positively charged and positively charged particles (positively charged pollen 5c) when the wire net 12 is negatively charged by switching the charged state of the wire net 12 between positive and negative with the elapse of time.SOLUTION: Provided is a charged wire net screen 2b with a conductive net and a sash 8 for supporting the net, and the net repeats positive electrification and negative electrification with the elapse of time.SELECTED DRAWING: Figure 1C