Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

665results about How to "Guaranteed capacity" patented technology

Transmitting and receiving device and method for continuous outer-loop power control while in DTX mode in a CDMA mobile communication system

A device and method for continuous outer-loop power control on a physical channel which transmits only power control bits and no data while in discontinuous transmission (DTX) mode in a CDMA mobile communication system is disclosed. In the power controlling device according to one aspect of the present invention, a frame error detector detects an error from a frame of predetermined length and generates an error signal indicating whether an error has been generated. A closed-loop power controller compares a threshold with the signal-to-noise ratio (SNR) in each power control group (PCG) in a plurality of periods of the frame and generates power control information according to the comparison result. An outer-loop power controller increases the threshold in order to generate power control information that commands a power increase in response to an error signal indicating the existence of a frame error, and decreases the threshold in order to generate power control information that commands a power decrease in response to an error signal indicating the absence of a frame error. An offset controlling unit, which is connected to the outer-loop power controller, receives gating information about the gated transmission of data in a frame at a predetermined rate, and generates an offset signal, which indicates an offset corresponding to a changed gating rate if the gating rate is changed.
Owner:SAMSUNG ELECTRONICS CO LTD

Graded high-nickel ternary anode material, and preparation method and application thereof

The invention discloses a graded high-nickel ternary anode material, and a preparation method and an application thereof. The graded high-nickel ternary anode material is prepared by the following method: 1) mixing a high-nickel polycrystalline precursor with anhydrous LiOH and a doping additive, performing sintering, mixing the obtained product with a coating additive, and performing sintering toobtain a high-nickel polycrystalline material; 2) mixing a ternary monocrystalline silicon precursor with a lithium source and the doping additive, performing sintering, mixing the obtained product with the coating additive, and performing sintering to obtain a ternary monocrystalline silicon material; and 3) mixing the high-nickel polycrystalline material with the ternary monocrystalline siliconmaterial, or mixing the mixed material with the coating additive, and then performing sintering. The invention further discloses an application of the graded high-nickel ternary anode material in lithium batteries. The graded material prepared by the method provided by the invention has higher compaction and cycle stability than the single polycrystalline material, has higher capacity than the single monocrystalline silicon, and the gas production and service life problems of the battery can be effectively improved after the grading modification.
Owner:GUANGDONG BRUNP RECYCLING TECH +2

Multi-core core-shell-structure silicon carbon composite negative pole material and preparation method thereof

The invention relates to a multi-core core-shell-structure silicon carbon composite negative pole material and a preparation method thereof. The preparation method comprises the following steps: 1. preparation method of high-dispersivity multi-core porous spheres; 2. preparation of high-dispersivity asphalt suspension; and 3. preparation of multi-core core-shell-structure silicon carbon composite negative pole material: adding the porous spheres prepared in the step 1 into the high-dispersivity asphalt suspension prepared in the step 2, carrying out ultrasonic dispersion, heating and drying by distillation while intensely stirring to remove the solvent, transferring the powder particles into a protective atmosphere, and holding at low temperature so that the asphalt liquid enters the inside of the porous spheres to enhance the binding strength between the silicon source and the conducting carbon mesh, carry out secondary coating on the silicon source, overcome the defects in the coating in the step 1 and enhance the capacity performance of the silicon; and carrying out high-heat treatment. The invention is simple and easy to implement, and has the advantage of high practicality. The prepared silicon carbon composite material has the advantages of high reversible capacity, designable capacity, favorable cycle performance, favorable heavy-current discharge capacity, high tap density and the like.
Owner:CENT SOUTH UNIV

Traffic flow capacity increasing control method for comprehensive waiting area at road intersection

The invention discloses a traffic flow capacity increasing control method for a comprehensive waiting area at a road intersection, comprising the following steps: S1, adding a comprehensive waiting area, setting a primary stopping line and a secondary stopping line at the end of the comprehensive waiting area, and setting the distance between the primary stopping line and the secondary stopping line as the length of the comprehensive waiting area; and S2, adding a variable information board, pre-signal lamps and an induction coil buried under the road surface to the medial strip of the road opposite the comprehensive waiting area, wherein the pre-signal lamps include a pre-signal red lamp and a pre-signal green lamp, and the pre-signal red lamp goes on 10-12 seconds earlier than an original go-straight or turn-left traffic signal green lamp at the intersection. By adopting the method of the invention, the traffic capacity of the intersection is improved greatly, and the space resources of the intersection are prevented from lying idle.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD

Well-killing workover method used with water plugging

InactiveCN105041261AFew componentsSimple on-site configurationDrilling compositionSealing/packingPolymer gelOil well
The invention discloses a well-killing workover method used with water plugging. The well-killing workover method sequentially comprises the following steps of (1) calculating the use level of required well-killing fluid according to volume of a shaft; (2) determining the density of the well-killing fluid according to formation pressure; (3) determining polymer gel formula which is not easy to degrade in an operation period at formation temperature according to the formation temperature, or determining a gel particle type matched with the size of a pore throat according to characteristics of porosity-permeability of a reservoir; (4) preparing polymer gel or gel particle liquor; and (5) pumping the well-killing fluid into the shaft to perform underground construction operation. By the well-killing workover method, thinking limitation that temporary plugging or lost circulation prevention is often used to recover capacity in existing well-killing workover is overcome, the polymer gel or gel particles with a selective water plugging function serves as the well-killing fluid, two yield increasing technologies comprising oil well water plugging and reservoir temporary plugging protection are combined, a synergistic effect of the two yield increasing technologies is achieved, the capacity after workover of an oil well is improved to a maximum extent, and the well-killing workover method has a wide application prospect in the field of workover of intermediate-high water cut oilfields.
Owner:SOUTHWEST PETROLEUM UNIV

Micro grid energy storage device design method based on capacity limit value constrain

A micro grid energy storage device design method based on capacity limit value constrain includes 1, inputting the planning area distribution-type power supply allocation capacity and the type and distribution situation of an energy storage device; 2, inputting the planning area load and historical weather data; 3, establishing a distribution-type power supply force model and an energy storage charging and discharging module; 4, calculating the lower limit of the energy storage device allocation capacity; 5, calculating the upper limit of the energy storage device allocation capacity; 6, calculating the optimal value of the energy storage device allocation capacity in the range of the limit value. By the aid of the method, on the basis that the energy storage device capacity limit value of a connected-type micro grid is met, the optimal energy storage device capacity allocation matching with distribution type power generation is calculated, the requirements on reliability and economy of the micro grid can be met through the energy storage device capacity to the utmost extent, and clean, safe and reliable power is provided for loading.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID

Image forming apparatus and developing agent cartridge

An image forming apparatus is described. The image forming apparatus may include: a casing; a plurality of image carriers parallelly arranged along one direction in the casing, and formed with an electrostatic latent image; a plurality of developing agent carriers opposed to the image carriers, for visualizing the electrostatic latent image by feeding a developing agent to the image carriers; and a plurality of developing agent cartridges, parallelly arranged in the one direction to be opposed to the developing agent carriers in the longitudinal direction of the developing agent carriers, and configured to be together attachable / detachable to / from the casing along the one direction, for accommodating the developing agent fed to the developing agent carriers.
Owner:BROTHER KOGYO KK

Two-user NOMA (Non-Orthogonal Multiple Access) downlink energy efficiency optimization method in consideration of SIC (Successive Interference Cancellation) energy consumption

The invention discloses a two-user NOMA (Non-Orthogonal Multiple Access) downlink energy efficiency optimization method in consideration of SIC (Successive Interference Cancellation) energy consumption. The method comprises steps: firstly, transmitting power P of a base station, a channel condition H1 between a user 1 and the base station, a channel condition H2 between a user 2 and the base station and a signal voltage difference threshold theta for multiplex signal separation needed when a user receiver executes the SIC are acquired; and the user with a good channel condition executes the SIC, a power distribution coefficient is optimized according to the channel condition of the user with the good channel condition, and the optimal power distribution scheme is obtained. The method of the invention is applicable to a two-user NOMA downlink system in consideration of SIC energy consumption, and compared with a two-user NOMA system in no consideration of SIC energy consumption, while the total system capacity is ensured, and the total energy efficiency of the system can be well enhanced.
Owner:HUAZHONG UNIV OF SCI & TECH

Cell-oriented amorphous coverage small base station deployment method in cellular network

The invention discloses a cell-oriented amorphous coverage small base station deployment method in a cellular network. The method aims at maximizing multi-user distribution system average throughout capacity. The multi-user distribution system average throughout capacity under different small base station position vectors is calculated by means of a given collaborative cell building and resource scheduling method; a small base station deployment position enabling the throughout capacity to be maximum is found based on a given position updating algorithm, and multi-user distribution is considered to the greatest degree. Compared with a traditional method, the cell-oriented amorphous coverage small base station deployment method is more applicable to an actual site; in consideration of the user distribution tidal phenomenon, when user distribution is changed, the determined small base station position enables adjacent small base stations to change the collaboration way more effectively in real time, so that a traditional fixed cell shape is changed, and the system performance requirement for distribution of different users is met. By the adoption of the cell-oriented amorphous coverage small base station deployment method, the system average throughout capacity, margin user performance and user fairness can be effectively improved.
Owner:CERTUS NETWORK TECHNANJING

Anode gradual-entering type microarc oxidation treatment method and device with low energy consumption

The invention discloses an anode gradual-entering type microarc oxidation treatment method with low energy consumption. Before a large-area workpiece contacts electrolyte, an electric field with voltage higher than an arcing voltage is applied to the two ends of an electrode, and constant voltage control is adopted for a microarc oxidation power supply. In the process that the workpiece is gradually soaked into the electrolyte, the speed of the workpiece to soak in the electrolyte is correspondingly regulated through detecting the consumed current of the workpiece to realize quick microarc oxidation of the surface of the workpiece. After the workpiece is completely soaked in the electrolyte, the microarc oxidation power supply finishes the microarc oxidation treatment by adopting a constant voltage, constant current or constant power control mode. The invention also discloses a device used by the anode gradual-entering type microarc oxidation treatment method with low energy consumption, and the device comprises a traveling crane, a feiba and an electrobath with an anode capable of ascending and descending. By utilizing the method and the device thereof to carry out the microarc oxidation treatment, quick film forming for large-area workpieces can be easily realized, the resource is saved, the production efficiency and the yield can be improved, and the power supply capacity can be furthest exerted.
Owner:XIAN UNIV OF TECH

Cleaning equipment of semiconductor silicon chip and cleaning method thereof

The invention discloses cleaning equipment of a semiconductor silicon chip and a cleaning method thereof. The cleaning equipment comprises a plurality of process cavities which are connected in series, lift separators, rotatable platforms, mechanical arms and cleaning cantilevers, wherein the lift separators are arranged among a plurality of process cavities; the rotatable platforms are arranged in the plurality process cavities for supporting the silicon chip; the mechanical arms are arranged in the plurality of process cavities for conveying the silicon chip among the plurality of process cavities; the cleaning cantilevers are arranged in the plurality of process cavities, and are provided with nozzles which are connected with cleaning agent feed pipelines and inert gas feed pipelines; each process cavity is subjected to different cleaning steps, and is provided with the cleaning agent feed pipeline and the inert gas feed pipeline required by different cleaning steps, thereby greatly simplifying the equipment structure, reducing equipment cost, and improving production efficiency.
Owner:SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT

Active equalizing system and equalizing method for power lithium ion battery pack

The invention relates to an active equalizing system and an active equalizing method, in particular to an active equalizing system and an active equalizing method for a power lithium ion battery pack. The active equalizing system comprises a battery module (1), a matrix control circuit (4), a DC/DC (Direct Current to Direct Current) unit (6), a PWM (Pulse Width Modulation) control unit (5), a main control unit (3) and a voltage temperature sampling unit (2); and by control on the DC/DC unit (6) and the matrix control circuit (4), the charging and discharging direction of a transformer T1 is changed and functions of upper limit equalizing, lower limit equalizing and energy compensation on electrical quantities of unit cells in the battery module (1) are implemented. The active equalizing system and the active equalizing method have the following advantages that (1) due to the adoption of a low-loss equalizing technology, service life is prolonged; (2) the current equalizing capacity of a large current equalizing technology reaches over lOA; (3) due to the adoption of a bidirectional equalizing technology, direct bidirectional energy transfer between one random unit cell in the battery pack and the battery module can be implemented; and (4) the active equalizing system adopts a distributed design and has a simple and practical structure and very good expandability.
Owner:CETHIK GRP

Mixed lead paste capable of improving binding force of positive grid of lead-acid storage battery and lead paste and preparation method of mixed lead paste

The invention discloses mixed lead paste capable of improving the binding force of a positive grid of a lead-acid storage battery and lead paste and a preparation method of the mixed lead paste. The method comprises the following steps of adding lead powder which is 80-90% of total mass to a paste mixing machine, adding the following raw materials by percentages: 8-10% of sulfuric acid, 0.1-0.3% of stannous sulfate, 0.08-0.10% of conductive fiber, 0.3-0.5% of colloidal graphite, 0.05-0.15% of sodium borate and 1.0-1.2% of antimonic oxide, carrying out dry mixing for 8-10min, adding deionized water, carrying out wet mixing for 2min, adding residual paste and carrying out wet mixing for 8-10min; and dropwise adding the sulfuric acid which is 8-10% of total mass and stirring for 10-12min to obtain the lead paste of which the apparent density is 4.4+/-0.02g/cm<3>. According to the mixed lead paste, the interface problem between an existing battery grid and an active material of the lead paste can be effectively solved, the bonding force between the positive grid and the lead paste is improved, the strength of a polar plate is improved and the cycle life of the battery is prolonged.
Owner:HENAN CHAOWEI POWER SUPPLY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products