10 results about "Negatively 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.

Systems and methods are provided for locating hydrocarbons near a wellbore, determining petrochemical properties of a reservoir, and assessing hydrocarbon saturation between reservoirs. The nanoparticles can be positively charged and have properties that make them explode upon contacting crude oil. Sensors can be strategically placed near the wellbore to measure micro tremors caused by nanoparticle explosions. When the fluid is pumped into the wellbore, the fluid is forced into the surrounding rock formations. The fluid can contact crude oil in the rock formations, and the nanoparticles can attract to the fluid / oil interface due to negatively charged particles in the crude oil. When the nanoparticles reach the fluid / oil interface, they can contact the crude oil and explode. The seismic sensors can detect micro tremors caused by the nanoparticle explosions. The seismic sensor readings can be superimposed to identify the location of the crude oil and assess hydrocarbon saturation.

An energy harvesting device mainly consists of a high-potential metal, a low-potential metal, and multiple electrode spacings. The high-potential metal is composed of a ferromagnetic material disposed at an odd number of positions, and multiple high-charge particles exist within the ferromagnetic material. The low-potential metal is composed of a paramagnetic material disposed at an even number of positions, and multiple negatively charged particles exist within the paramagnetic material for collecting electron conduction. The high-potential metal and the low-potential metal have different potentials, creating a potential difference. The high-potential metal and the low-potential metal work together to capture an external time-varying magnetic field from the surrounding environment. This external time-varying magnetic field drives the high-charge particles to flow towards the negatively charged particles, forming electron transitions to generate electrical energy. After the low-potential metal reaches electron saturation, it outputs electrical energy.

The invention discloses a process for removing a residual flocculating agent from household garbage incineration fly ash by washing, which comprises the following steps: carrying out a multi-stage washing process on the household garbage incineration fly ash, adding cation PAM (Polyacrylamide) into a washing system for flocculation, and carrying out countercurrent rinsing after floc is formed; wastewater generated by washing is sequentially subjected to the following treatment: adding negative charge particles for coagulating sedimentation, and then carrying out ultraviolet catalytic oxidation. According to the invention, the content of the flocculating agent in the waste incineration fly ash washing liquid can be obviously reduced after the processes of coagulating sedimentation and ultraviolet catalytic oxidation by adding the charge-loaded particulate matters. After the fly ash washing wastewater is treated by the process, the flocculant residue in the fly ash washing wastewater does not influence the normal operation of a subsequent membrane module, the salt quality is improved, the residual quantity of monomer acrylamide is reduced by more than 90% (technical conditions and test methods of GB / T31246-2014 water treatment agent cationic polyacrylamide), the stable operation of the whole washing system production line is ensured, and the production efficiency is improved. And the process is stable in operation.

The present disclosure generally relates to the methods of treating solid tumors using negatively 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.

This invention relates to a bipolar multi-stage DMA, a particle size distribution measurement device, and a particle size distribution measurement method. The DMA includes an inlet stage, a sieving stage, and an outlet stage arranged sequentially. The inlet stage includes a sheath gas inlet mixing chamber and a laminar flow device disposed within the sheath gas inlet mixing chamber. The sieving stage includes a sieving chamber connected to the sheath gas inlet mixing chamber and a nozzle installed within the sieving chamber. The outlet stage includes a sheath gas outlet mixing chamber connected to the sieving chamber and a mixer installed within the sheath gas outlet mixing chamber. The bipolar multi-stage DMA of this invention can simultaneously sieve multiple groups of bipolar monodisperse particles, that is, simultaneously sieve positively charged and negatively charged particles, obtain the measured number concentrations, and sum them, thereby reducing the measurement error caused by the change in unipolar charge probability and improving the accuracy of particle size distribution measurement.

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 application relates to a method and device for removing particles from an ion beam etching system, which comprises a metal grid added to the bottom of the reaction chamber of the ion beam etching system, the grid being connected to a DC power supply to generate a positive voltage, the voltage value of the applied positive voltage being adjusted within 100kv according to the size of the particles to be removed. The material of the metal grid c is a hard metal such as molybdenum or nickel, and the mesh size is less than 5mm. After the etching process is completed, the ion source of the ion beam etching system is disconnected, and the lower electrode is rotated to be perpendicular to the grid c; the neutralizer is turned on to generate a large number of electrons attached to the particles to be removed to make the particles negatively charged; the grid c applies a positive voltage through the DC power supply c, and the negatively charged particles move towards the grid c under the action of the electric field; the particles pass through the mesh of the grid c and are pumped out of the chamber by the molecular pump, so that the particles are quickly and effectively removed, the deposition of particles in the interior of the reaction chamber is prevented, and the production efficiency of the ion beam etching system is improved.

The present disclosure relates to an adhesive kit comprising a first emulsion and a second emulsion configured to reversibly adhere to each other. The present disclosure also provides methods for using the kit. The present disclosure also provides an aqueous emulsion comprising positively or negatively charged particles dispersed in an aqueous phase, the particles comprising a hydrophobic polymer.