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889 results about "Recovery effect" patented technology

The recovery effect is a phenomenon observed in battery usage where the available energy is less than the difference between energy charged and energy consumed. Intuitively, this is because the energy has been consumed from the edge of the battery and the charge has not yet diffused evenly around the battery.

Active carbon fiber organic gas recovery method and system using nitrogen as desorption medium

The invention relates to a method for recovering active carbon fibre organic waste gas by taking nitrogen as desorption medium, belonging to the field of environmental protection. The method for recovering active carbon fibre organic waste gas by taking nitrogen as desorption medium takes the active carbon fibre as a fixed bed adsorber of the adsorbent, adopts thermal nitrogen desorption and can recover and reuse the organic waste gas and nitrogen at the same time. The method of the invention adopts the thermal nitrogen adsorption, generates no secondary contaminant, realizes that the exhaust reaches the standard of the environmental protection, leads the adsorption layer to keep dry at the same time, improves the utilization ratio of the active carbon fibre and prolongs the service life of the active carbon fibre. As vapour is not used for desorption, the equipment has no corrosion problem, thus greatly reducing the manufacture cost of the equipment. The method of the invention has extremely good recovery effects on solvent with large water solubility and easy hydrolysis performance and organic waste gas with high boiling point, has low water content in the recovered products, high quality of the solvent and reduces the running cost.
Owner:中节能天辰(北京)环保科技有限公司

Depth image denoising and enhancing method based on deep learning

The present invention discloses a depth image denoising and enhancing method based on deep learning. The method comprises the steps of establishing a depth image denoising and enhancing convolutional neural network, wherein the network is composed of three layers of convolution units which finish the functions of feature extraction, non-linear mapping and image reconstruction of the input images respectively; jointly using the depth and visual images as the input of the convolutional neural network, wherein firstly the visual images are processed into the grayscale images in a grayscale processing manner; and enhancing the edge information and taking out the redundant information by the image preprocessing; segmenting the depth images into the image blocks according to certain intervals, adding the effective data by a rotation and pixel overturning data amplification method, and discarding the interference blocks and the redundant blocks; and improving the learning efficiency of the network adaptively based on a loss training depth image enhancement convolutional neural network of a weight map. According to the method of the present invention, the black spot filling and the denoising operations can be carried out on the depth images with noise real-timely, and the good visual effect and depth value recovery effect can be realized.
Owner:SOUTH CHINA UNIV OF TECH

Power system harmonious wave compressed signal reconstruction and detection method based on compressed sensing

The invention discloses a power system harmonious wave compressed signal reconstruction and detection method based on compressed sensing. The power system harmonious wave compressed signal reconstruction and detection method based on compressed sensing comprises the steps that harmonious wave original signals of a power system and a measurement matrix with a binary sparse random measurement matrix serving as a power system harmonious wave data compressed sample are sent to a frequency mixer for compressed sampling in a simulation domain, then A/D conversion is carried out on the simulation signals, and a compressed sampling value is obtained; it is determined that a compressed sensing sparse base is a discrete Fourier transform base; initialization of fundamental wave filtering is carried out; fundamental wave filtering is carried out; the frequency, amplitude and phase of a fundamental component are detected; the fundamental wave constituent in the compressed sampling value is filtered away; parameter initialization is carried out on a spectrum projection gradient method; a sparse vector estimation value of a harmonious wave component is reconstructed through the spectrum projection gradient method; the frequency, amplitude and phase of the harmonious wave component are detected; reconstruction of the harmonious wave original signals of the power system is finished. The power system harmonious wave compressed signal reconstruction and detection method based on compressed sensing overcomes the defect that all existing recovery algorithms do not take the influence of the fundamental wave component in the harmonious wave signals on signal reconstruction into account, so that the recovery effect is not ideal.
Owner:TIANJIN UNIV

Noise-possessing movement fuzzy image restoration method based on radial basis nerve network

The invention discloses a noise motion blurred picture recovery method based on radial neural net, which comprises the following steps: (1) making the noise motion blurred picture y(m, n) generate the corresponding smoothing picture s(m, n) after low-pass filtering with the two-dimensional median filter; (2) calculating the inaccuracy picture e(m, n)=y(m, n)-s(m, n) between the noise motion blurred picture and the smoothing picture; (3) detecting the edge with Canny operator in order to estimate the gradient f' (m, n) of y(m, n); (4) calculating regular parameter lambda (m, n) of every picture element according to the size of f' (m, n) and generating interpolation picture f lambda (m, n) by radial neural net RBFN according to the inaccuracy picture e(m, n); (5) acquiring the silent motion blurred picture f(m, n) by superimposing the interpolation picture f lambda (m, n) to the smoothing picture s(m, n) after low-pass filtering; (6) acquiring the width HL and the height VL of two-dimensional blurred picture by identifying the motion blurred direction and the motion blurred length of the motion blurred picture automatically and acquiring the recovery picture with the picture recovery method. The invention provides the automatic identification, the low complicated calculation and the good recovery effect.
Owner:ZHEJIANG NORMAL UNIVERSITY

Foam drainage gas recovery method for natural gas horizontal well

InactiveCN102587865AThe effect of drainage and gas recovery is obviousSimple and safe operationFluid removalDrilling compositionRecovery methodPolyethylene glycol
The invention relates to a foam drainage gas recovery method used for a natural gas horizontal well. The method is capable of injecting a foam scrubbing agent into the bottommost end of a gas well shaft, so that the whole shaft is filled with foam fluid and optimal drainage gas recovery effect is achieved. The technical scheme of the method comprises the following steps: firstly, manufacturing a dynamical underground foam scrubbing bar which consists of a gas nozzle, a tail wing, a boosting agent, a shell and a protection head sleeve, wherein the material for manufacturing the tail wing, the shell and the protection head sleeve is the solid foam scrubbing agent which consists of polyoxyethylene alkyl ethers, polyethylene glycol, urea, imidazoline, sodium dodecyl benzene sulfonate and saturated alcohol sulfate; and the boosting agent is one of dry ice, sodium hydride or potassium oxide; and secondly, throwing the dynamical underground foam scrubbing bar to the bottom of the well, wherein the boosting agent is in contact with water to generate a large amount of gas, so that the foam scrubbing bar is pushed to the bottommost end; and as the foam scrubbing agent is dissolved, a large amount of foam is formed to achieve the optimal effect of drainage gas recovery. The method disclosed by the invention has a wide application range without any wellhead equipment and energy, is simpleand safe in operation, low in cost and has no pollution to the environment.
Owner:SOUTHWEST PETROLEUM UNIV

Stratum catalytic oxidation thick oil thermal recovery method

The invention relates to a stratum catalytic oxidation thick oil thermal recovery method which is as follows: a catalyst with a catalytic oxidation function and a cracking function is injected during a thick oil steam gorge and disgorge or steam drive process, and a certain amount of air is injected in an auxiliary way; catalytic oxidation and cracking reaction is generated inside a stratum during soaking and the steam drive to enable crude oil to lightly reduce viscosity, and a surface active agent which can improve the liquidity of the crude oil is also generated, thus the purpose of enhancing the thick oil recovery effect of thick oil is achieved. The invention is integrated with multiple modes such as the thick oil steam gorge and disgorge or the steam oil drive, stack gas oil drive, surface active agent oil drive and thin oil dilution method oil recovery and is a compound high-efficiency oil recovery technique; the thick oil inside an oil layer generates stack gas, hydrocracks, reduces the viscosity, generates the surface active agent and reduces the tension of an oil-water boundary on the spot under the action of the catalytic oxidation; and in addition, the stratum catalytic oxidation thick oil thermal recovery method can reduce the steam usage amount, the heating temperature of the oil layer and the thick oil recovery cost.
Owner:LIAOHE GASOLINEEUM EXPLORATION BUREAU

System on chip (SOC) estimation method for lithium ion battery and hardware implementation of estimation method

The invention discloses a system on chip (SOC) estimation method for a lithium ion battery. The method comprises the following steps: 1, performing SOC real-time update; 2, introducing a dynamic variable; 3, identifying parameters in a battery circuit model; 4, realizing SOC estimation of the lithium ion battery by using an unscented Kalman filter algorithm according to the identified model parameters; 5, implementing the SOC estimation algorithm of the lithium ion battery based on the unscented Kalman filter. The method disclosed by the invention has the following advantages: (1), an improved second order RC equivalent circuit considers the rate capacity effect and recovery effect of the lithium ion battery compared with other circuit models, and compared with the traditional second order equivalent circuit, the dynamic and static characteristics of the battery are well simulated; (2), compared with the other algorithms, the unscented Kalman filter algorithm is low in initial value dependence, accurate in prediction and capable of well solving the nonlinear problem; (3), by utilizing the characteristics of flexibility and convenience of Xilinx FPGA development, the SOC estimation algorithm of the lithium ion battery is implemented on a hardware platform, so that the algorithm is not only theoretical, but also can be applied to portable equipment.
Owner:CAPITAL NORMAL UNIVERSITY

Limb coordination rehabilitation training device for neurology department

InactiveCN108186286AGood for coordination trainingGood for body coordinationChiropractic devicesVibration massageNeurology departmentNervous system
The invention relates to the technical field of medical instruments, in particular to a limb coordination rehabilitation training device for a neurology department. The limb coordination rehabilitation training device comprises a base, a seat, driving devices and a leg training device. The driving devices are positioned on two sides of the base which is positioned at one end above the base, and the leg training device is positioned at the other end above the base. The driving device comprises a left driving part and a right driving part, the leg training device comprises a left training part and a right training part, the left driving part is used for driving the right training part, and the right driving part is used for driving the left training part. An ultrasonic massaging part is arranged on the seat. By right leg training under left hand drive and left leg training under right hand drive, accordance with human nervous system tissues is realized, and coordination training of upperand lower limbs of patients is benefited; high training pertinence and great recovery effects are achieved; by the ultrasonic massaging part for ultrasonic massaging of thighs and cervical vertebra of the patients, blood circulation is promoted, metabolism rate is increased, and recovery of the patients is benefited.
Owner:QINGDAO CENT HOSPITAL

Method for synchronously extracting boron and iron in paigeite

ActiveCN102899434AHigh reactivitySolve the shortcomings of insignificant separation effectChemical industryProcess efficiency improvementSteelmakingSodium sulfate
The invention provides a method for synchronously extracting boron and iron in paigeite. The method comprises the following steps: fully mixing a paigeite powder and an additive composed of sodium carbonate, sodium sulfate, natrium humate, sodium fulvate and sodium oxalate by mixing, agglomerating, performing reduction roasting on dried paigeite agglomerates which take coal as a reducing agent, cooling the roasting agglomerates and placing in a bowl mill, synchronously grinding ore and leaching by water, performing solid-liquid separation on a pulp to obtain a filtrate containing sodium metaborate and filter residues containing metallic iron powder, evaporating and crystallizing a filtrate to obtain the sodium metaborate crystals; employ a wet type weak magnetic separation on the filter residue to obtain the directly reduced metallic iron powder with iron grade greater than 90%, wherein the metallic iron powder is a high-quality furnace material used for making steel of an electric furnace; and treating the magnetic separation nonmagnetic products to recover the valuable components such as magnesium and silicon. The method has the advantages of strong raw material adaptability, simple process flow, high production efficiency, less energy consumption, low cost, good comprehensive recovery effect of ferroboron and high product added value. The method provided by the invention can provide technical support for efficiently using the paigeite with abundant reserve volume for our country, and has wide popularization and application prospects.
Owner:CENT SOUTH UNIV

Process for all-wet recovery of valuable elements in complex low-grade sulphide ore

A process for all-wet recovery of valuable elements in a complex low-grade sulphide ore comprises the following steps: crushing and grinding a raw material, sieving the crushed and ground raw material, performing size mixing by use of a sodium hydroxide solution, and after that, performing pressurized oxidizing leaching to obtain an alkaline-leached solution and alkaline-leached residues; acidizing the alkaline-leached solution to obtain a lead sulfate product and a heavy lead solution, and performing potential reduction control step by step on the heavy lead solution to obtain crude selenium powder, crude tellurium powder and a post-reduction solution; performing copper-soaking on the alkaline-leached residues by use of a sulfuric acid solution to obtain copper-leached residues and a copper-leached solution; performing antimony and bismuth soaking on the copper-leached residues by use of an acid liquor containing chloride ions to obtain an antimony-leached solution and antimony-leached residues, feeding the antimony-leached slags to noble metals for recovery, and adjusting the pH of the antimony-leached solution step by step to obtain antimony residues and bismuth residues; adjusting the pH of the copper-leached solution to obtain iron residues and an iron-removed solution, wherein the iron residues serve as a waste water treatment additive, and the iron-removed solution is subjected to zinc dust replacement to obtain copper powder and a post-replacement solution; and merging the post-reduction solution and the post-replacement solution, and performing concentration and crystallization to obtain heptahydrate. The process is good in comprehensive recovery effect, strong in adaptation to the raw material, clean and environment-friendly in process, low in demand on equipment, adjustable in implementation scale and high in practicability.
Owner:JIANGXI COPPER CORP

Method for comprehensive recovery of valuable metals from tin anode mud

Belonging to the technical field of wet metallurgy, the invention especially relates to a method for comprehensive recovery of valuable metals from tin anode mud. The method comprises the following technical key points of: mixing the tin anode mud with one or more of an alkali metal hydroxide aqueous solution and an alkali metal sulfide aqueous solution, keeping the pH value of the mixed feed solution greater than 12, placing the feed solution into a sealed reactor, conducting heating to a temperature of 100-300DEG C, carrying out stirring reaction, then performing filtration, recovering valuable metals, mainly tin, from the filtrate, and recovering various valuable metals from the filter residue by means of oxidizing roasting transformation, copper leaching by sulfuric acid, silver leaching by nitric acid, bismuth leaching by hydrochloric acid. The invention is particularly suitable for treatment of tin anode mud with high antimony and low silver, and can achieve a good comprehensive recovery effect for various valuable metals. The leaching rate of tin is greater than 90%, the removal rate of antimony is greater than 85%, and silver, bismuth, copper, as well as lead are enriched over 4 times. And the method generates a relative small amount of ''three wastes'', thus being in favor of environmental protection.
Owner:云南锡业研究院有限公司研究设计院

Atomizing device and foam discharging starting atomization water discharging gas recovery method thereof

ActiveCN104100239ARestore energyEnhance gas recovery effectFluid removalRecovery methodCyclone
The invention discloses an atomizing device and a foam discharging starting atomization water discharging gas recovery method thereof. The atomizing device comprises a dropping head, a first pin, a fishing head, a lock ring, a second pin, a cutting ring, a clamp seat, a suspension sleeve, a clamp, a cone, a rubber sleeve, a pressure-bearing sleeve, a third pin, a core pipe, a resonantor, a nozzle, a cyclone, an outer tube and a sand filter tube. The water discharging gas recovery method comprises the steps of dropping and seating the atomizing device, discharging the water, recovering the gas and fishing. The atomizing device further stretches an oil pipe to be below a liquid surface of accumulated liquid so as to realize the tertiary atomization of the accumulated liquid, the atomizing degree of the liquid drop is high, and the atomizing water discharging and gas recovery effect is improved; the locking of a horse-tooth buckle is matched with the unlocking of the pins, so that reliability in anchoring is achieved; the removal of the sealing and anchoring of the clamp and the rubber sleeve can be realized by adopting a way for withdrawing the cone, so that reliability in unlocking and success in fishing can be achieved; the water discharging and gas recovery construction requirement of a low-pressure low gas recovery well can be well met.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Building-out circuit and testing method for testing negative bias temperature instability

The invention provides a building-out circuit and a testing method for testing the negative bias temperature instability (NBTI). The building-out circuit is respectively connected with a source-measurement unit and a PMOS (P-channel Metal Oxide Semiconductor) to be measured; the building-out circuit comprises an NMOS (N-channel metal oxide semiconductor); a base electrode of the NMOS is electrically connected with a source electrode of the NMOS by a resistor R0; a drain electrode fo the NMOS is electrically connected with a grid electrode of the PMOS to be measured by a resistor R1; a grid electrode fo the NMOS is electrically connected with the grid electrode of the PMOS to be measured by a resistor R2; the potential of the base electrode of the NMOS is set into a value of less than 0V; and the voltage input end of the source-measurement unit is connected with the grid electrode of the NMOS. When an input voltage of the source-measurement unit is changed into 0V, due to the voltage division of the resistor R2, the voltage of the grid electrode of the PMOS to be measured is less than 0V, i.e. when the NBTI recovery effect occurs after the stress voltage is switched off, a partial pressure of the R2 is still applied to the grid electrode of the PMOS to be measured to inhibit the NBTI recovery effect in the PMOS, so that the measurement result is more accurate.
Owner:SEMICON MFG INT (SHANGHAI) CORP
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