346results about How to "Resolve separability" patented technology

The invention discloses composite technology combining an electrodynamic method and a chemical leaching method, namely a process for performing high speed in situ restoration on heavy metal pollution soil without secondary pollution, wherein a natural organic complexing agent and an acidic anode working solution are used as a leaching agent; a leaching liquid containing heavy metals is migrated to a cathode processing area through electroosmotic flow; and combining the advantages that the electromigration can pass through low-permeability soil and a low pH anode working solution and can strengthen the desorption of solid heavy metals, the leaching agent can be selected as comparably mild natural organic acid so as to avoid the secondary pollution at source; simultaneously, with the repair process, pH jump points formed near a cathode are leached intermittently, an acid migration belt is controlled to advance continuously so that the pH jump points appear in the cathode processing area, and the problem of the reduction of the current efficiency with the time because of the decline of the local conductivity caused by the neutralization reaction between an acid surface and an alkali surface at a restoring part is avoided.

The invention discloses a method for preparing a nanometer photocatalyst material supported embedded composite film. The method comprises the following steps: dissolving an organic polymer base film material, a pore-forming agent and a nanometer catalyst in a solvent, stirring and standing to prepare a casting film solution; dispersing the nanometer photocatalyst in the solvent to obtain dispersion liquid, spreading the dispersion liquid on a plate to prepare a spreading solution, and drying the spreading solution to obtain a spreading film; and covering the spreading film with the casting film solution, scraping a liquid film by utilizing a film scraper, immersing the scraped liquid film in a constant temperature gel bath, and curing the liquid film to prepare the nanometer photocatalyst material supported embedded composite film. The invention also provides the nanometer photocatalyst material supported embedded composite film and application thereof. According to the method, a nanometer photocatalyst coating is uniformly, effectively, stably and firmly supported on the surface of the embedded composite film. Moreover, according to the composite film, the removal rate of pollutants is effectively improved, and film pollution is reduced.

The invention discloses an adjustable-speed magnetic induction coupler, which relates to the technical field of transmission in mechanical engineering, and comprises a driving disk assembly (I) and a driven disk assembly (II), wherein the driven disk assembly (II) comprises a driven disk substrate 1, a driven disk substrate 2, a driven disk substrate 3, sectorial copper plates or rectangular copper bars, a rotary connecting rod, springs, sliding rods and a sleeve 2; the driven disk substrate material is steel disk, the end faces of the driven disk substrates1 and 3 are provided with deep slots of which the depth is greater than half the thickness of the substrates, and the sectorial copper plates or rectangular copper bars, which have the same shape as permanent magnets, are rotationally embedded in the slots; the sliding rods are distributed on the two end faces of the driven disk substrate 2 along a circumferential direction, the springs are sleeved in the sliding rods, and the driven disk substrates 1 and 3 are fixed on the sliding rods and can compress the springs along the sliding rods; and the rotary connecting rods are connected with the driven disk substrates 1 and 3 and are fixed on the driven disk substrate 2 rotationally. The adjustable-speed magnetic induction coupler can be used in power transmission mechanisms between loads and high- vibration motors such as coal mills, crushers and coal belt conveyers and used in transmission systems of other devices.

The invention relates to a time-frequency-transformation-based blind extraction method of fetal electrocardiography, which is based on the characteristic that the time domain of an original signal is relatively sparse. The method comprises the following steps: extracting a plurality of paths of mother-fetal mixed electrocardiosignals from different parts of mother's abdomen, and preprocessing thecollected mixed signal, wherein the preprocessing comprises the steps of correcting the baseline shift of the signals, filtering off 50Hz power frequency interference, filtering off high-frequency noise interference such as myoelectricity and the like; selecting two paths of the mother-fetus mixed electrocardiosignals according to the maximal signal-to-noise ratio and separately searching mother-fetal electrocardio wave group positions of the two paths of mixed signals with an R-wave positioning technology to obtain time intervals in which the mother-fetus electrocardio in the two paths of mixed signals are relatively sparse, converting the obtained relatively sparse time intervals into a time frequency domain by using a fuzzy function, calculating signal items and cross items in each time frequency distribution, constructing a comparison function by using generalized Rayleigh's quotient, and finally separating fetal electrocardiosignals from the two paths of mother-fetal mixed electrocardiosignals. The method provided by the invention is tested on the basis of actual collected data, and can well separate fetal electrocardiosignals.

The invention relates to a magnetic suspension device capable of automatically rotating, which comprises a bracket, an electromagnet, a suspension component, a displacement sensor, a rotating action coil, and a control circuit, wherein the electromagnet is arranged in the bracket; a suspension permanent magnet and a rotating permanent magnet are arranged in the suspension component; the suspension component can be magnetically suspended under the electromagnet and can automatically rotate along two directions; the displacement sensor is arranged in the bracket; the rotating action coil is arranged in the bracket and is used for detecting the rotation of the suspension component and driving the suspension component to rotate; the control circuit is arranged in the bracket; and the electromagnet, the displacement sensor and the rotating action coil are all connected to the control circuit. The suspension component of the device can stably suspend in air and can automatically rotate along two directions, the suspension component is under the power-off protection, and the control structure is simple. The device has the advantages of low power consumption, less emitted heat, and longerservice life. The device provided by the invention can be used as handiwork, showing stand, and the like.

The invention discloses a mechanical product assembly workshop material calling and dispensing management system and method based on an MES system. The system comprises a planning module, a material management module, an andon calling calculating module and a visualization monitoring module. By employing the planning module and the material management module as configuration prerequisites, the andon calling calculating module generates a production line assembly station material calling request according to concrete steps, including calling for the required quantity of material kind and response; meanwhile, the retrieval of materials on that day is connected in real time with tracking assembly station material calling so as to perform better material management. The management system and method can timely and accurately generate material dispensing demands according to real production processes, and perform effective warehouse management on that day so as to create more scientific and effective material dispensing management environment, and to increase an enterprise material dispensing management level.

The invention discloses a method for preparing epoxy chloropropane with the oxidation of chloropropene. The chloropropene, a solvent and fine particles of titanium silicate molecular sieve catalyst are put into a reaction pot and a hydrogen dioxide solution is added at 10 DEG C to 80 DEG C. The method is characterized in that a reaction is carried out under a subacidity condition and after the reaction, materials pass through an intermediate tank for oil-water dissociation to be divided into oil phase and water phase; the oil phase is sent into a rectifying tower for separating the chloropropene and ECH. After the water phase is filtered, a catalyst filter cake is washed by the solvent, regenerated or applied to an epoxidation reaction after being directly beat with the solvent. The ECH is extracted from an aqueous layer after filtration by the chloropropene. An extracted oil layer and an oil layer obtained from the separation of a reaction solution are combined and rectified, or the extracted oil layer is applied to the epoxidation reaction; water left from the extraction is rectified for recycling methanol and applied to the preparation of catalysts; and the method has simple procedures, small consumption amount of solvents, high separation yield of reaction products and easy realization of industrialization.

The invention discloses an all-wet recovery process for waste circuit boards. The all-wet recovery process comprises the following steps of crushing and reselecting the waste circuit boards to obtain multi-metal powder of the waste circuit boards; performing leaching on the multi-metal powder of the waste circuit boards with an acid solution with the concentration of 0.1-4 mol / L, and obtaining leach liquid and leach residues after solid-liquid separation; adding copper compounds and an acid solution with the concentration of 0.5-5 mol / L into the leach residues to replace and strip tin, and obtaining tin-bearing liquid and tin-separated residues after solid-liquid separation; adding an acid solution with the concentration of 0.2-6 mol / L into the tin-separated residues, leading oxygen and / or air into the mixture for an oxidation reaction, and obtaining copper-bearing liquid and precious metal residues after solid-liquid separation; and performing vortex electrodeposition on the copper-bearing liquid to obtain cathode copper. According to the all-wet recovery process for the waste circuit boards, the all-wet recovery process is provided for treating the waste circuit boards, so that directional separation, gathering and extraction of valuable metal in the process steps are achieved, and the problems of the dispersed moving of valuable metal elements of the waste circuit boards, the difficulty in subsequent separation and extraction and the like are solved.

The invention discloses an RFID multi-antenna reader-writer which comprises a central controller module, a radio frequency read-write module, an antenna control module or an antenna array control module, a display module and a communication interface module. The RFID multi-antenna reader-writer can be used for solving the problem that the single antennae can only be used in the existing reader writer and cannot be separated because of being bounded by the reader writer, is wide in working temperature range, strong in anti-interference capability and rapid in data transmission speed and can reliably operate in a complex condition.

On a conventional T-shaped glass chip, a permanent magnet is utilized to fix and decorate a nanometer magnetic bead of a DNA probe in a separation channel of a chip; the rapid, sensitive, high-specific, high-stability, low-cost separation detection on the DNA is realized by utilizing electric drive sampling and combining a laser induced fluorescence detector or an electrochemical detector, thus solving the defects that the time of separating and detecting the DNA by utilizing a microfluidic chip is long, the separation effect is poor, the sensitivity is low, the specific is poor and the stability is poor and the like; the interface manufacturing is avoided by an electric sampling manner; the influence of dead volume is removed; and the sample use amount is reduced in a narrower and uniform micro pipeline, and meanwhile the lower detection limit is ensured.

The present invention belongs to a filtering method and particularly relates to a ground multiline three-dimensional laser radar point cloud data filtering method. The method comprises: 1, establishing a ground curve surface equation, i.e. firstly, determining a ground point, then establishing the ground curve surface equation, and finally, fitting relevant parameters to obtain the ground curve surface equation; and 2, filtering out a misjudgement point. The ground multiline three-dimensional laser radar point cloud data filtering method has the effects that the ground multiline three-dimensional laser radar point cloud data filtering method is simple in implementation, is fast in operation speed, overcomes a limitation of a conventional airborne laser radar and ground single-line laser radar point cloud filtering method, and effectively solves the problem of separation between the ground point and a non-ground point of ground multiline laser radar point cloud data; and a filtering effect of the point cloud data is improved.

The invention discloses a hydrophilic-underwater oleophobic polymer porous membrane, a preparation method and applications thereof. The hydrophilic-underwater oleophobic polymer porous membrane is a polymer matrix membrane. The membrane surface has a coarse micro-nano level porous structure. Nano level, micrometer level and / or sub-micrometer level tunnels are distributed in the membrane. The static contact angle between the membrane and water is less than 10 degrees, and the underwater static contact angle between the membrane and oil is greater than 130 degrees. The provided membrane can be used to separate and purify oil-water mixture and emulsified oil-water generated by chemical engineering production, daily life, crude oil leakage accidents, and the like, and has a very important application value and wide application range.

A process for preparing the high-purity phosphatidylcholine from vegetative phosphatide includes extracting, separating alcohol-soluble components, vacuum centrifugal concentrating, adding it to chromatographic Al2O3 column, eluting with the mixture of water and low-carbon alcohol, vacuum concentrating and drying. Its advantages are high purity and quality, high output rate and no poison and pollution.

The invention discloses a copper-cobalt double-metal organic framework / nano-fiber composite material (CuCo-MOF@NF). A preparation method of the composite material includes the steps: firstly, preparing a copper-cobalt double-metal organic framework by a solvothermal method; secondly, mixing the copper-cobalt double-metal organic framework and a high-molecular polymer to prepare the copper-cobalt double-metal organic framework / nano-fiber composite material by an electrostatic spinning method. The composite material has excellent catalytic effects on azo-dyes such as rhodamine B (cationic dyes)and acid red 1 (anionic dyes) at normal pressure and temperature. The preparation method of the composite material is simple, a catalyst is convenient to operate and recycle, high in catalytic efficiency, good in stability and less in dosage, mass production of the composite material is easily achieved, and the composite material has an excellent application prospect in respects of catalytic degradation of azo-dyes in industrial wastewater and control of other pollutants.

The invention relates to a rapid determination method for oxygen stable isotope of ethanol in an alcoholic beverage, and belongs to the technical field of stable isotope analysis. The method comprises the following steps: 1) using acetone to dilute an alcoholic beverage, and mixing for stand-by; 2) injecting a sample by a liquid injection needle, and using a GC with molecular sieve chromatographic capillary column to separate ethanol, acetone, water and other oxygen-containing compounds; 3) converting ethanol into CO with an on-line pyrolysis device; 4) determining delta 18O in CO produced by ethanol by CF-IRMS; and 5) based on a measured delta 18 O value of an isotopic reference material, correcting and calculating delta 18OVSMOW of the ethanol sample. The invention utilizes GC-TC-IRMS to realize rapid determination of oxygen stable isotope of ethanol in alcoholic beverage, and solves series of existing technical problems in pretreatment, such as ethanol purification before determination of oxygen stable isotope of alcohol in alcoholic beverage. The project can promote technological progress of ethanol oxygen isotope determination, and also provides technical methods for the future research on authentication and metabolic path of alcoholic beverage or biofuel.

The invention discloses a preparation method of a self-assembled folded rGO composite membrane used for dehydration of organic matter and belongs to the field of membrane separation. The method comprises steps as follows: GO (graphene oxide) is sucked to a pretreated porous base membrane with rich amino, then, the base membrane is put in a preheated organic solvent to be modified and put in a glutaraldehyde water solution to be crosslinked, then, a polyelectrolyte is sucked to the surface of the modified GO composite membrane, and finally, the modified GO composite membrane is put in a water solution of a crosslinking agent to be crosslinked. The preparation process is simple, the film forming time is short, the composite membrane is applied to the field of pervaporation, the problems thatthe GO composite membrane has small flux and low separation factor in the pervaporation process are solved, and the composite membrane has uniform and compact surface and can be widely applied to thefield of water treatment.

The invention relates to a signal separation method based on fractional wavelet transform. The signal separation method solves the problem that the traditional wavelet transform method has poor effects on non-stationary signal analysis and treatment. The signal separation method comprises the following steps: determining the order and the layer number of the fractional wavelet transform accordingto parameters of input signals, calculating a transform coefficient of the detailed part of each layer by fractional wavelet transform, calculating signal energy which corresponds to the detailed partof each layer according to the transform coefficient, comparing the signal energy with a set threshold value, retaining the transform coefficient which corresponds to the detailed part of the layer and recording and storing the retained detailed part if the signal energy is larger than the set threshold, and abandoning the transform coefficient which corresponds to the detailed part of the layerif the signal energy is smaller than the set threshold. The signal separation method is applicable to the treatment and analysis occasions of non-stationary signals.

This invention relates to a fabricating method for anisotropically bonded magnet including: step S1 for adjusting the first mixture and the second mixture, where: the first mixture comprises the first magnetic powder, of which the grain size is in the range of 20-150mum, thermosetting resin of 2.0 wt%being added into the anisotropically bonded magnet, the first additive; the second mixture comprises the second magnetic powder, of which the grain size is in the range of 1-20mum, the second additive; step S2 for adjusting the first mixture and the second mixture; step S3 for making the magnetic intensity of the end part of the shaping metal die be under the 0.8T, the magnetic intensity of the central part of the shaping metal die is 5% higher than that of the said end part of the shaping metal die after said mixed compounds being filled into the metal die; step S4 for heating said mixed compounds at the atmosphere of inert gases or nitrogen gases so as to harden compounds.

The invention discloses a magnetic covalent organic frame material and a preparation method and an application thereof. The magnetic covalent organic frame material takes piperazine and cyanuric chloride as the construction units to form a covalent organic frame, and then the covalent organic frame is loaded on the organic frame material formed on the surface of magnetic ferriferrous oxide. The organic frame material better solves the problems of small particle size, poor stability and difficult separating from a water body of the current covalent organic frame materials. The method employs a solvothermal method, and akes the magnetic ferriferrous oxide nano particles as a carrier, the material is immersed into a piperazine-containing ligand solution, a cyanuric chloride ligand solution is dropped, and a hydro-thermal reaction is carried out under constant temperature condition to obtain the magnetic covalent organic frame material. The material has the characteristics of strong separating capability in water, large adsorption quantity on pollutants in the water body, high mechanical strength and environmental friendliness.

The present invention relates to epoxy ethane hydrating process to produce glycol. Unlike available technology, which needs several towers or several reactors and several reaction steps, the process of the present invention has the epoxy ethane hydrating reaction and the separation of glycol completed simultaneously in the reacting and rectifying tower, and thus has greatly simplified technological process, greatly lowered material / water ratio and epoxy ethane consumption, less side reactions and obviously raised glycol selectivity. The present invention has the features of low production cost and high glycol selectivity, and may be used in industrial production.

The invention relates to a process for preparing silk functional fabric, which grafts the cyclodextrin onto the silk fiber through the chemical bond to obtain the silk functional fabric product with cyclodextrin solid chirality hydrophobic cavity, wherein the process can be used for preparing fabric with aromatic and medical health care functions and also can be used in the fields of molecule identification, waste water purification, artificial enzyme system forming and pharmaceutical slow releasing.

The present invention relates to a method for integrated treatment of dyeing wastewater by using magnetic activated carbon. According to the method, an improved magnetic activated carbon adsorption process and an Fe3O4-H2O2 based Fenton-like technology are organically combined based on the preparation of a PAC-Fe3O4 composite material, and a dyeing wastewater treatment technology integrated with adsorption and regeneration is proposed, and the materials after adsorption can be synchronously regenerated by using the Fenton-like technology in the processing system. According to the method, the adsorption property of the PAC-Fe3O4 composite material and the Fe3O4 Fenton-like catalyst characteristic are fully used. At the time that the material performs adsorption effect on the dye pollutants, H2O2 is synchronously added to form a Fe3O4-H2O2 Fenton-like system to perform regeneration, so that the processing ability of the system is effectively improved, and the processing cost is lowered. The advantages of a pure PAC process and a conventional Fenton process are organically combined, so that the shortages that the conventional PAC and the treated wastewater are difficult to separate are easily to be lost, and cannot be regenerated are solved, and the problems that ferric salt needs to be continuously added in the conventional Fenton process, and the sludge output amount is large are improved. The method has the advantages of being simple, efficient, economical and the like, thereby having a large potential market in dyeing wastewater treatment applications.

The invention discloses a regeneration method of an SCR denitration catalyst. The regeneration method includes: (1), performing ash blowing, cleaning and drying on the SCR denitration catalyst which is waste and deactivated; (2), smashing the waste SCR denitration catalyst which is dried well, adding a strong base solution of 10 wt%-40 wt% in mass concentration, and reacting for 3-8 h at temperature of 150-200 DEG C; (3), adjusting pH value of reaction liquid in the step (2) to 9-10, filtering and separating to obtain recovery liquid containing sodium tungstate and sodium vanadate, and adjusting concentration of vanadium in regeneration liquid to 2-10 g / L; (4), soaking the deactivated SCR denitration catalyst dried well in the step (1) in the regeneration liquid with concentration fixed well in the step (3) at room temperature for regeneration, and taking out before placing for 60 min at room temperature; (5), drying, roasting and cooling a catalyst in the step (4) to obtain a regenerated SCR denitration catalyst. The regeneration method has the advantages of good regeneration effect, low SO2 / SO3 conversion rate and low regeneration cost.

The invention discloses a gene for coding a glutamine dipeptide biosynthetic enzyme and application thereof. The nucleotide sequence of the gene is shown as SEQ ID NO.1. The invention further discloses an amino acid sequence coded by the gene, and provides a recombinant vector containing the gene, recombinant escherichia coli, and a method for performing biotransformation to synthesize the glutamine dipeptide by using the gene. The gene and the application of a recombinant bacterial strain of the gene have the advantages of high mol conversion rate, high reaction speed, easy separation, low cost and the like. In the synthesis method, the maximum mol conversion rate of the glutamine dipeptide can reach 83.3 percent; meanwhile, the thalli can be applied to the catalytic synthesis of the glutamine dipeptide again after the circulation recovery; in addition, the catalytic activity is stable. Therefore high market competitive power and application values are realized; a foundation is laid for the industrial production of the glutamine dipeptide.

The invention discloses a magnetically separated bamboo charcoal-based wastewater treatment agent and a preparation method and the application of the treatment agent. The saturation magnetization intensity of the treatment agent is 5-10 emu / g, and the specific surface area of the treatment agent is 90-130 m<2> / g. The treatment agent is prepared via the following steps: (1) cleaning bamboo charcoal, suction filtration, drying, breaking and obtaining bamboo charcoal powder; (2) weighting two or more types of transitional metal salts, adding deionized water, preparing and obtaining a mixed solution; (3) dispersing the bamboo charcoal powder into the mixed solution, ultrasonically and uniformly stirring, dropwise adding precipitant, depositing, regulating pH value to 7-10, heating, stirring at a constant temperature to react, standing, layering, pressure reducing, suction filtration, and obtaining a deposit; and (4) immersing the deposit in hydrochloric acid solution, suction filtration, scrubbing to neutrality, drying and sintering. The treatment agent is applicable to treatment of dye wastewater, fluoride wastewater, or heavy metal ion wastewater, is large in specific surface area, good in absorption performance, time-saving, safe, efficient, inexpensive, environmentally-friendly, economic, and simple in process, and can achieve continuous separation and recovery.

The invention belongs to analytical chemistry region, and relates to the method of measuring chiral isomer of by high efficiency liquid chromatography after pregabalin deriving. The method of precolumn derivation supplied by the invention has advantages of geniality reaction conditions, steady derivation offspring, fast reaction rate, little subsidiary reaction, etc. It could realize separation and measuration for pregabalin and chiral isomer containing pregabalin preparation.

The invention provides a method for separating and purifying functional protein in plasma, which comprises the following steps of: adding soluble inorganic salt and a hydrophilic organic solvent into a plasma solution to form a two-aqueous phase extraction system, and obtaining the upper-phase extraction liquid rich in plasma functional protein; and performing further separation and purification of the extraction liquid through hydrophobic chromatography and ion exchange chromatography to obtain the plasma functional protein of which the electrophoresis purity is higher than 95%. The method provided by the invention simplifies the purifying steps of the plasma functional protein; the organic solvent / salt two-aqueous phase extraction has the advantages of convenience in solvent recovery, low cost and short phase separating time, does not need back-extraction operation and can selectively remove glucose and partial protein in the plasma; and the extraction liquid is directly separated and purified by hydrophobic chromatography and ion exchange chromatography, the complicated steps of desalination are avoided, and the separation and purification effects of the plasma functional protein are remarkably improved. The method provided by the invention solves the problems of complicated separation steps, high cost, low purity and the like in the separation and purification of functional protein in the plasma protein.

The invention relates to a tensioning type satellite-rocket connecting and unlocking mechanism, in particular to a satellite-rocket connecting and unlocking device with an upper body and a lower bodyin butt joint, and belongs to the technical field of machinery. The mechanism comprises a tensioning structure, a locking structure, an explosive bolt, a torsional spring, a pneumatic module and a hinge base. The tensioning structure is composed of two connected cylindrical shafts and a connecting part. The lower end of the tensioning structure is connected with a carrying structure hinge seat through lugs; two ends of the upper part of the tensioning structure are respectively connected with the locking structure through explosive bolts and hinges; a torsional spring is arranged at the jointof the tensioning structure and the locking structure to realize rotary unlocking of the locking structure; the joints of the tensioning structure and the explosive bolts provide downward pressure forthe stacked satellites when the satellites and the rockets are connected; during satellite-rocket connection, the ball head of the locking structure makes contact with the concave circle at the top of a stacked satellite connecting column, downward pressure is applied to the stacked satellite connecting column through locking force generated by connection with the explosive bolt, and satellite-rocket connection is achieved.

A nano-class anticancer polyose material for treating stomach cancer, intestine cancer and liver cancer is prepared from chitosan as basic raw material.

The invention discloses a method for preparing adipate, comprising the following steps of: (1) adding cyclohexane, solvent, an initiator and a solid catalyst into a reactor and mixing to form a mixed suspension; (2) introducing enough amount of oxygen into the mixed suspension to be used as an oxidant; and reacting under the conditions that the pressure is 0.5-5MPa and the temperature is 100-200DEG C for 1-20h; (3) separating the reaction mixture in the step (2) to obtain the solid catalyst and a liquid phase mixture; and (4) separating the adipate from the liquid phase mixture in the step (3). The invention prevents nitric acid from corroding the environment and the equipment, can solve the problems that a homogeneous catalyst is difficult to recover and is deactivated in the oxidation process of the cyclohexane, is free from using noble metals and has high reaction selectivity and favorable activity. The used catalyst can be recycled.