43results about How to "Distributed control" patented technology

The invention provides array optical tweezers based on multicore polarization-preserving fiber and a manufacturing method thereof. The array optical tweezers comprise the multicore polarization-preserving fiber, standard single-mode fiber and a laser light source, wherein the laser light source is connected with one end of the standard single-mode fiber, the other end of the standard single-mode fiber is connected with the multicore polarization-preserving fiber in a fusion conical pull coupling mode, and the other end of the multicore polarization-preserving fiber is manufactured into a centrum shape through fusion conical pull processing equipment. In the invention, a plurality of optical waveguide fiber cores are integrated in one fiber, thus not only saving physical space but also significantly reducing system input light power and reducing harm on particles to be captured. Meanwhile, the multicore fiber composite optical tweezers can capture particles more flexibly and accurately, and has adjustability, thus greatly improving the practicability of fiber and optical tweezers technologies. More importantly, the array optical tweezers can form a compact interference grid opticalfield array, so as to form optical potential wells at coherence enforcement points to realize functions such as filtering particles.

The invention relates to a method for preparing silicon carbide nanometer particle and a composite material thereof by evaporating solid raw materials and belongs to the technical field and application field of nanometer material. The method for preparing silicon carbide nanometer particle and the composite material thereof by evaporating solid raw materials is characterized in that automatically controlled direct-current arc plasma equipment is utilized to uniformly mix the solid raw materials which are micron silica powder and carbon powder according to a certain ratio and shape the same into blocks by compressing to obtain an anode, a graphite rod is utilized as a cathode, then the raw materials are evaporated at an atmosphere mixed by inert gas and hydrogen gas by a certain ratio to obtain single-phase silicon carbide nanometer particle or multi-phase composite material. The method for preparing silicon carbide nanometer particle and the composite material thereof by evaporating solid raw materials is simple in preparation technology, low in cost, applicable to large-scale preparation, and capable of controlling phase composition and sizes and shapes of prepared particles.

The invention relates to a method for preparing a microcapsule taking a hydrophobic substance as a core material by a complex coacervation method. The method has the advantages of simple process and relatively lower cost, and the product has relatively higher encapsulation efficiency. The method comprises the following steps of: (1) weighing gelatin and carboxymethylcellulose in certain proportion, and stirring and dissolving the gelatin and the carboxymethylcellulose in hot water; (2) adding hydrophobic substance in certain mass ratio and dispersing the hydrophobic substance for 2 minutes ata high speed to form emulsion; (3) stirring the emulsion at the constant temperature of 45 DEG C, adjusting the pH of the emulsion to be 4.4 to 4.8 with a 10 percent ethylic acid and reacting the emulsion with the ethylic acid for 5 minutes; (4) cooling the emulsion until the temperature is below 15 DEG , adjusting the pH of the emulsion to be 6.0 and adding glutamine transaminase for solidification; and (5) filtering the mixed solution to obtain a wet microcapsule product, and freeze-drying or spray-drying the wet microcapsule product to obtain a dried microcapsule product.

The invention discloses a method and system for active replication for a Cache of a multi-core processor. The method comprises the following steps: S1, a host node analyzes the position and access times of a processor core which accesses to a data block in a shared L2 Cache, and selects a candidate replica node; S2, if the accessed times of the data block reach a replica threshold, the data blockis replicated in the replica node and the position of a replica is recorded; S3, if receiving a read request for the replicated data block, the host node forwards the read request to the nearest replica node, and the replica node responds to the data block; S4, after receiving the response, a request node can record the position of the replica node in an address mapping table, and transmits a follow-up read request for the data block to the replica node. The method and the system avoid replica redundancy and unreasonable distribution caused by blind replication, and have the access delay which is close to the low delay of a private L2 Cache, and the capacity which is approximate to the large capacity of the shared L2 Cache.

The present invention relates to a process for the capture of carbon dioxide CO2 by carbonization in a circulating fluidized bed (CFB) carbonization reactor (10) by recycling the solid fractions of metal oxide MeO and metal carbonate MeCO3 to the CFB The carbonization reactor (10) adjusts the temperature distribution. The present invention also provides a system (1) for recycling metal oxide MeO and metal carbonate MeCO3.

The invention discloses a method for rapidly preparing large-area surface-enhanced Raman scattering substrate. The method comprises the steps that 1, light solidification glue is prepared on a transparent substrate; 2, the transparent substrate with the light solidification glue is arranged on the upper portion of a target material, a laser pulse penetrates through the transparent substrate and the light solidification glue and then is focused on the target material surface, and the target material absorbs the laser pulse and then generates nano-particles which is deposited on the light solidification glue surface; 3, the light solidification glue is cured through exposure, and then the deposited nano-particles are fixed to the transparent substrate; 4, a metal thin film is deposited on the nano-particles to form a metal nanostructure, and the surface-enhanced Raman scattering substrate is obtained. Accordingly, pulse laser is used for directly depositing the nano-particles generated by the target material onto the transparent substrate surface, the sizes of the nano-particles can be selected by regulating the distance between the target material and the transparent substrate, the controllability is good, the large-area SERS substrate can be prepared in a low-cost, efficient and rapid mode, and the prepared SERS substrate is high in sensitivity, good in consistency and pure in background signal.

An unsupported catalyst and a preparation method therefor. The catalyst comprises an active metal oxide and an auxiliary agent embedded on the outer surface of the active metal oxide. The active metal oxide is one or more selected from oxides of the following metals: ferrum, cobalt, nickel, and copper. The auxiliary agent is one or more selected from the following elements: ferrum, cobalt, nickel, copper, rhodium, manganese, potassium, silver, calcium, magnesium, zirconium, aluminum, zinc, ruthenium, platinum, sodium, and phosphorus. The auxiliary agent is present in the form of a simple substance or an oxide.

The invention discloses a dual-channel broadband signal device for changing field distribution, which belongs to the technical field of electromagnetic fields and circuits. The dual-channel broadband signal device includes a dual-channel broadband adjustable power signal source and an electromagnetic radiation device; the dual-channel broadband adjustable power signal source includes: a single-chip microcomputer, a signal source, a power splitter, a first adjustable gain amplifier, a second adjustable The gain amplifier, the first phase shifter, the second phase shifter, the phase-locked loop and the power supply module for supplying power to each device, the power divider is connected with the signal source, and is used to divide the signal output by the signal source into A and B. , respectively enter the radiation experiment cavity of the electromagnetic radiation device from both ends. The present invention uses the broadband electromagnetic radiation cavity as the carrier of the electromagnetic wave. The electromagnetic field generated by it is evenly distributed, and the internal electromagnetic field distribution can be controlled and changed to provide a DC-6GHz broadband electromagnetic radiation field, which has good broadband characteristics; the signal device can Controllability, convenient experimental operation, better cell radiation experiment.

The invention relates to a filter element for discharging mud cakes by virtue of hydraulic squeezing and extrusion for solid-liquid treatment of viscous and fine grained materials. Along the direction of squeezing force, a group of filter elements are clamped in a pressure bearing structure of a flexible pipe squeezer, wherein each filter element comprises an upper flange, a lower flange and a filter pipe unit; the upper flange comprises a raw material inlet, an upper filter chamber sealing structure and a traveling mechanism; each filter element is provided with at least one water permeation plate in a filter chamber, the front and rear surfaces of the water permeation plate are water-permeable filter surfaces, a raw material supply regulator is arranged on the upper flange, and the other end of the raw material inlet is communicated with the filter chamber by virtue of the raw material supply regulator; and the raw material supply regulator comprises at least one regulating valve. According to the filter element disclosed by the invention, because each filter element is provided with the raw material supply regulator, the distribution of raw materials in the filter chamber can be effectively controlled, thin-layer pressure filtration can be more easily met, the retention of the raw materials in the filter chamber can be avoided, and the moisture of filter cakes can be greatly reduced; and compared with a plate-and-frame filter press and a belt filter, the energy consumption of each filter element disclosed by the invention for filter chamber sealing is minimum, and the filter efficiency can be improved.

The invention discloses a rolling device and method for preparing a functionally graded material based on Hall effect. The rolling device is based on a conventional rolling mill, a coil is additionally arranged to generate a magnetic field, electrode plates are additionally arranged on a bearing seat to introduce a pulse current, a binding post is additionally arranged to measure the potential difference between two ends of a metal plate to control the condition of current distributed in a gradient mode, the upper electrode plate is connected to a positive electrode of a power supply, the lower electrode plate is connected to a negative electrode of the power supply, and the pulse current is introduced from the upper electrode plate and back to the negative electrode of the power supply after passing through an upper roller, the metal plate and a lower roller, when the pulse current passes through a plastic deformation zone of the metal plate, the pulse current is distributed in a gradient mode in the plastic deformation zone of the metal plate by the influence of the magnetic field in the broadsiding direction, the properties of the metal plate are further distributed in a gradient mode, so that the functionally graded material is prepared, the current distributed in a gradient mode is controllable, and the properties of the material are further controllable.