66 results about "Particle transfer" patented technology

In a mass cytometer or mass spectrometer, a sample of elemental tagged particles is transferred from a dispersion to a gas flow through a carrier aerosol spray for atomization and ionization by inductively coupled plasma (ICP) source. The configuration of the sample transfer apparatus allow for total consumption of the sample by passing the sample spray through a deceleration stage to decelerate the spray of particles from its high velocity expansion. Following the deceleration stage, the decelerated sample of particles can be accelerated and focused through an acceleration stage for transferring into the ICP. This effectively improves the particle transfer between the sample spray and the ICP.

A tip for a biomagnetic particle transfer device generally includes a solid body made from a highly magnetically permeable material and having a shape adapted to concentrate a magnetic field generated by the transfer device on the body. The tip body preferably includes a truncated cone-shaped portion and a solid probe portion. The cone-shaped portion defines an attachment end engageable with an end of the transfer device and an apex opposite the attachment end. The probe portion extends from the apex of the cone-shaped portion, and the magnetic field is concentrated on the probe portion.

Moving bed hydrocarbon conversion processes are provided for contacting a catalyst moving downward through a reaction zone with a hydrocarbon feed, withdrawing the catalyst from the reaction zone and conveying the catalyst to a regeneration zone wherein the catalyst moves downward. The catalyst is withdrawn from the regeneration zone and passed downward to an upper zone of a particle transfer apparatus wherein the transfer of catalyst from the upper zone through a middle zone to a lower zone is regulated by varying the pressure of the middle zone, the flow rate of gas passing through an upper valveless conduit, and a valve in a lower valved conduit. The catalyst from the lower zone of the particle transfer apparatus is conveyed to the reactions zone.

The invention provides a method for transferring nano-particles from an oil phase into an aqueous phase. The method includes the steps of mixing nano-particle solution dispersed in the non-polar oil phase with water, a stabilizer and cosurfactant solution, enabling the mixture to be subjected to ultrasonic emulsification and made into oil-in-water microemulsion, carrying out evaporation and drying on the microemulsion in a baking oven to obtain stabilizer-nano-particle composite dry jelly, adding polar solvent capable of dissolving the stabilizer into the dry jelly, slightly shaking so as to enable the dry jelly to be dissolved and dispersed into the solvent, and finally achieving the purpose of dispersion of the nano-particles transferred from the non-polar oil phase to the polar solvent. The method is simple in process, simple, convenient and quick in operation, and capable of effectively transferring the nano-particles dispersed in the oil phase to the aqueous phase.

A facility for depositing a film of ordered particles onto a moving substrate, the facility configured to allow deposition, onto the substrate, of a film of ordered particles escaping from a particle outlet of a transfer zone having a first width. The facility further includes an accessory device in a form of a deposit head, provided to seal the particle outlet and configured to allow the deposition, onto the substrate, of a film of ordered particles escaping from an end of a particle transfer channel of the deposit head, the end having a second width strictly lower than the first width.

The invention discloses an electronic paper displaying device and a manufacturing method thereof. The electronic paper displaying device comprises an upper substrate and a lower substrate arranged oppositely and displaying layers filled between the upper substrate and the lower substrate, the electronic displaying device is provided with a plurality of displaying units arranged in a shape of a plurality of arrays, in every displaying unit, the displaying layer comprises microgel particles of a hole-shaped structure and sensitive to an electric field, electrolyte and colored particles transferred between the hole-shaped structure of the microgel particles and the electrolyte, the upper substrate and/or the lower substrate are/is provided with an electrode structure, wherein the electronic structure provided in every displaying unit can generate an electronic field capable of controlling the swelling states of the microgel particles and enabling the colored particles to transfer between the hole-shaped structure of the microgel particles and the electrolyte, due to the fact that microgel particles can swell or deswell when the electronic field generated by the electrode structure changes to further absorb or release colored particles, and black and white, grey or color display can be achieved and display refresh rate can be adjusted due to the controlled release of the colored particles.

The invention, which relates to the micro/nano particle operation technology, relates to a micro/nano particle transfer method having micro force sensing and liquid drop self-calibration functions, and an apparatus for realizing the same. Therefore, a problem that capillary force detection can not be realized by using the existing capillary-force-based micro/nano particle transfer method can be solved. According to the method, one operating liquid drop is allocated at a micro/nano particle to-be-released position; an operating probe having a micro force sensing function is used for dipping and taking the liquid drop, the operating probe is moved above the micro/nano particle, and picking up of the micro/nano particle is realized by the capillary force for picking up the liquid drop; and the operating probe is moved to a to-be-released position and releasing of the micro/nano particle is realized by using the capillary force for releasing the liquid drop. According to the invention, the liquid bridge capillary force during the micro/nano particle transfer process can be detected in real time and the precision is at an nN order; on the basis of the self-calibration characteristic of the capillary force and the liquid drop, reliable releasing of the micro/nano particle can be realized; and a proper liquid drop operating condition can be created by controlling the speed of liquid drop dipping by the probe and changing the structural morphology of the end effector.

The invention discloses a preparation method for co-modified copper bismuthate nanorod photocathodes. The preparation method includes the following steps: (1) performing hydro-thermal synthesis of a CuBi2O4 nanorod under an alkaline condition by utilizing abundant and cheap bismuth sources and copper sources; (2) loading silver ions on the CuBi2O4 nanorod by adopting an ion alternating physical adsorption method; (3) taking FTO conductive glass as a substrate, forming a CuBi2O4/Ag film by adopting a drop-coating method, and performing annealing processing through a CVD method; and (4) peelinga material by adopting a particle transfer technology to transfer to second FTO glass, performing ultrasonic processing, and preparing a nitrogen doped carbon quantum dot and sliver co-modified CuBi2O4 nanorod photocathode through the physical adsorption of nitrogen-doped carbon quantum dots. The photocathode prepared through the method can show good photo-electrocatalytic activity and visible light response characteristics under visible light, and stability can be improved, so that the preparation method can be effectively applied to the field of photo-electrocatalytic water decomposition forhydrogen production.

The invention discloses a method for phase transferring and three-dimensional assembling of precious metal nano-particles. The method comprises the following steps that after centrifugation is carried out on the aqueous solutions of the precious metal nano-particles, the aqueous solutions of 2 (diethyl aminoethyl acyl methyl ethyl) octadecylamine are added to sediments acquired through the centrifugation for ultrasonication, obtained dispersion liquid and the organic solutions of the 2 (diethyl aminoethyl acyl methyl ethyl) octadecylamine are mixed and vibrated, standing is carried out, and the precious metal nano-particles are transferred from a water phase to an oil phase. Centrifugation is carried out on the precious metal nano-particles transferred to the oil phase for the first time, the organic solutions of the 2 (diethyl aminoethyl acyl methyl ethyl) octadecylamine are added to the sediments acquired through the centrifugation for the ultrasonication, then obtained dispersion liquid and the organic solutions of silicon dioxide balls decorated by sulfydryl are mixed and stirred, centrifugation is carried out for the second time, obtained sediments are the precious metal nano-particles after the three-dimensional assembling, and the three-dimensional assembling of the precious metal nano-particles is achieved. The method is simple in operation, balance time for the phase transferring is short, and repeatability and controllability are better.

An apparatus for the transfer of solid particulate matter from a low pressure system to a high pressure system is presented. The apparatus simplifies the particle transfer process, and is useful for systems where solid catalyst particles are cycled through a reactor and a regenerator.

The present invention belongs to a mobile object visual tracking technology of a mechanical visual field to solve a problem of missing a tracked object resulted from a size change of an object image in an object tracking of a particle filter. Provided is a visual object tracking method based on a particle filter of triple particles. Specifically an improvement reflects in tracking an object using three groups of particles in the particle filter, wherein the differences among the three groups of particles are the difference in the number and the form of contained pixels, and parameters of three groups of particle transfer models are set differently in a process of a state transfer of particles. When a distance between the tracked object and a shooting lens is changed resulting in the size change of the object image, at least one group of the three groups of particles have a larger weight so that the group of particles can describe the tracked object more accurately. Thereby, the method in the invention can reduce a tracking error and enhance a tracking precision.

Moving bed hydrocarbon conversion processes are provided for contacting a catalyst moving downward through a reaction zone with a hydrocarbon feed, withdrawing the catalyst from the reaction zone and conveying the catalyst to a regeneration zone wherein the catalyst moves downward. The catalyst is withdrawn from the regeneration zone and passed downward to an upper zone of a particle transfer apparatus wherein the transfer of catalyst from the upper zone through an intermediate zone to a lower zone is regulated by varying the pressure of the intermediate zone and the flow rate of gas passing through the valveless conduits. A container within the second zone is in catalyst communication with a valveless conduit and provides more consistent catalyst flows. The catalyst from the lower zone of the particle transfer apparatus is conveyed to the reactions zone.

The invention discloses an oleanolic acid nanometer oral system with an inhibiting effect on insulin resistance. A hydrophilic substance polygalacturonic acid (PGA) and a hydrophobic substance oleanolic acid (OA) are connected together via esterification reaction and then are self-assembled to form nano-scale micelle particles OA-PGA. The micelle particles increase the utilization rate of medicines while maintaining the characteristics of the two substances; serving as an insulin resistance nanometer targeted oral delivery system, the micelle particles can realize targeted transportation of the medicines and can convey the medicines into a body well, and the nanoparticles have high stability, so the sensitivity of the insulin can be improved, the activity of islet cells can be improved, and effects of inhibiting and relieving insulin resistance and organ damage are obvious; the OA-PGA micelle particles transfer natural insulin sensitizers harmless to a body by taking natural substances as carriers, do not have toxicity on cells, and have great potential and application prospect in the aspect of treating type II diabetes.

A particle delivery system of an agricultural row unit includes a first particle belt configured to receive a particle from a particle metering and singulation unit, a second particle belt configured to receive the particle from the first particle belt and to expel the particle to a trench in soil, and a particle transfer assembly configured to facilitate transfer of the particle from the first particle belt to the second particle belt. The first particle belt is configured to accelerate the particle to a target particle transfer speed, and the second particle belt is configured to accelerate the particle to a target particle exit speed greater than the target particle transfer speed.

An apparatus for the transfer of solid particulate matter from a low pressure system to a high pressure system is presented. The apparatus simplifies the particle transfer process, and is useful for systems where solid catalyst particles are cycled through a reactor and a regenerator.

A method is provided of driving an electronic device comprising an array of device elements, each device element comprising particles which are moved to control a device element state, and each device element comprising a collector electrode, and an output electrode. The method comprises: in a reset phase, applying a first set of control signals to control the device to move the particles to the a reset electrode; and in an addressing phase, applying a second set of control signals to control the device to move the particles from the reset electrode such that a desired number of particles are at the output electrode. The second set of control signals comprises a pulse waveform oscillating between first and second voltages in which the first voltage is for attracting the particles to the reset electrode and the second voltage is for attracting the particles from the reset electrode to the output electrode, and wherein the duty cycle of the pulse waveform determines the proportion of particles transferred to the output electrode in the addressing phase. This control method provides well-controlled packets of particles which are collected in a vortex at the reset electrode before being passed on, in part, towards the output electrode (for example via the gate electrode).