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46results about How to "Optimal Control Technology" patented technology

Double-arm transmission robot applied to high-cleanliness environment

The invention relates to a double-arm transmission robot applied to a clean environment, which is used for the transmission and high-precision positioning placement of a large-diameter semiconductor silicon wafer in a high-cleanliness environment. The double-arm transmission robot is in the structural form of R-theta type and has the working principle of a space structure based on a cylindrical coordinate system and the characteristic of independent control of all motion shafts. The double-arm transmission robot mainly comprises an R-axis left arm mechanism, an R-axis right arm mechanism, a T-axis rotating mechanism, a Z-axis lifting mechanism, and the like and seals the pollution of a drive mechanism on an external environment by adopting a special seal device so as to be suitable for the high-cleanliness production environment requirement.
Owner:HARBIN INST OF TECH

Preparation method of human adipose-derived MSCs (mesenchymal stem cells) and application of human adipose-derived mesenchymal stem cell in preparation of medicine for treating diseases

InactiveCN104357383ABroad basic researchSolid basic researchAntipyreticMetabolism disorderAutoimmune conditionSide effect
The invention discloses a preparation method of human adipose-derived MSCs (mesenchymal stem cells) and an application of the human adipose-derived MSCs in preparation of medicine for treating diseases. The preparation method of the human adipose-derived MSCs comprises steps as follows: adipose tissue collection, adipose tissue transportation, adipose tissue connection, adipose tissue microblock preparation, SVF (stromal vascular fraction) extraction, primary culture, subculturing, cell cryopreservation, cell bank establishment and cell recovery. The human adipose-derived MSCs have a powerful immunity regulation function and can be applied to preparation of medicine for treating autoimmune diseases, and compared with conventional medicine, the human adipose-derived MSCs have the advantages as follows: 1, the treatment is convenient, the curative effect is lasting, the variety and the number of medicine for treatment and toxic and side effects caused by medicine treatment can be reduced, even the medicine such as immunosuppressant and the like for treatment is out of service, the death rate and the disability rate are reduced, and life quality is improved; 2, the safety is good, and toxic and side effects are avoided; 3, the source of adipose tissue is wide, the collection is convenient, fundamental research of the human adipose-derived MSCs is solid, the preparation technology is mature, the popularization degree is high, and the technology is controllable; and 4, the preparation cost of the human adipose-derived MSCs is lower than that of other biological preparation and can be accepted by most patients.
Owner:张炳强

Digital twinning application-oriented three-dimensional digital factory modeling method and system

ActiveCN113033001ASupport simulationWith 3D visualization propertiesForecastingDesign optimisation/simulationDigital transformationBusiness enterprise
The invention provides a digital twinning application-oriented three-dimensional digital factory modeling method and system, and the method comprises the steps: carrying out the abstract analysis of a core entity object related to a digital factory, and constructing a basic three-dimensional entity model object; carrying out abstract analysis on a core business process object related to the digital factory, and constructing a basic three-dimensional process business model object; carding an association relationship between the entity model and the business model, and constructing a basic association relationship object; and constructing a composite digital factory service model based on the constructed entity model, the constructed service model and the model relationship. According to the method and system, the dynamic and static models of the digital factory are constructed according to the business attributes, a model basis and a heterogeneous business system and equipment integration application mechanism are provided for digital twinning application, and a basis is provided for digital transformation and digital brocade construction of discrete manufacturing enterprises.
Owner:山东山大华天软件有限公司

Data protector for external memory and data protection method

The invention relates to a data protector for an external memory and a data protection method. The data protector for the external memory comprises a key generator and an address mapping circuit. The code key generator is used for generating a code key for protecting the data of the external memory. The address mapping circuit is used for carrying out encryption operation to an input address for accessing the external memory by using the code key generated by the code key generator so as to generate a target address which corresponds to the input address. The data protector can be used for effectively protecting the data of the external memory.
Owner:北京国睿中数科技股份有限公司

Method, device and system for controlling virtual reality device

The embodiment of the invention discloses a method, device and system for controlling a virtual reality device and relates to the technical field of data processing. The method includes the steps that human body feature parameters of a virtual reality device user are acquired; excitement parameters are extracted according to the human body feature parameters; if the excitement parameters meet an overexcitation condition, current display content of the virtual reality device is adjusted. According to the technical scheme, the technical effect of reminding or restraining real-time excitement of the virtual reality device user is achieved, the existing virtual reality device control technology is optimized, and the use safety of the virtual reality device is improved; especially, by means of the method, illness state relapse, caused by stimulation of immersed experience of virtual reality, of patients with medical history of sudden diseases such as epilepsy, apoplexia, heat diseases and myocardial infarction can be effectively avoided.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD

Touch screen control method and device of mobile terminal and mobile terminal

Embodiments of the invention disclose a touch screen control method and device of a mobile terminal and the mobile terminal. The method comprises the following steps of: detecting a currently operated foreground application program; obtaining an application identifier of the foreground application program; and opening or closing a mistaken touch prevention function of the current terminal. According to the method, the mistaken touch prevention function of the current terminal is opened or closed according currently operated application program, and the opening and closing of the mistaken touch prevention function can be dynamically and self-adaptively controlled, so that the technical problem that the touch screens cannot be normally operated under certain application programs after the mistaken touch prevention function is opened in the prior art is solved, the touch screen control technology of the existing mobile terminals is optimized, and the self-adaptive mistaken touch prevention for the touch screens of the mobile terminals is realized.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Garbage percolate treatment method

InactiveCN101591124ASolve Chroma ProblemsPurify effluent water qualityMultistage water/sewage treatmentContaminated groundwater/leachate treatmentNitrationAnaerobic reactor
The invention discloses a garbage percolate treatment method, and belongs to the technical field of waste resource treatment. The method adopts an anaerobic and aerobic mode to treat garbage percolate, and comprises the following steps that: the garbage percolate is collected in an adjusting tank; after the garbage percolate is evenly stirred, the pH is adjusted, and the garbage percolate is injected into an anaerobic reactor and subjected to anaerobic fermentation at a temperature of between 30 and 39 DEG C; the anaerobic effluent enters a primary aerobic system, the flow rate of the water in an aerobic tank reaches 0.2 to 1 meter per second under the action of an aeration device, then a biochemical environment with a high dispersion system and high transfer mass is formed in a reaction tank, and the wastewater is subjected to high-strength oxidation treatment; the garbage percolate enters a secondary aerobic system and is subjected to anaerobic, facultative aerobic and aerobic multi-level circulating treatment, and ammonia and nitrogen are fully discomposed and removed under the circular action of denitrification and nitration; the secondary aerobic effluent is subjected to coagulation treatment in a sedimentation tank, and the effluent color is solved; and the sludge is used for reflowing and fertilizing gardens and parks. By applying the method, the clean energy source which is methane can be acquired, and the aim of the garbage percolate can be treated at low cost.
Owner:JIANGNAN UNIV

Power/voltage stability margin assessment method of alternating current/direct current mixed-linkage electrical power system with multi-infeed direct current

The invention relates to a power / voltage stability margin assessment method of an electrical power system, and provides a power / voltage stability margin assessment method of an alternating current / direct current mixed-linkage electrical power system with multi-infeed direct current. The method involves an equivalent mode for equalizing a complex power grid as a simple power grid, a calculation method for power / voltage stability margin index (PVSI) of the electrical power system and determination of a power / voltage stability boundary of the electrical power system. The method has the advantagesthat 1, the complex power grid with various elements is equalized as the simple power grid to provide convenience for all sorts of electrical power system analysis and control techniques; 2, the power / voltage stability margin index is adopted for conducting on-line measurement on the power / voltage stability margin of the electrical power system under a dynamic situation, and identifying the weaknodes of a network; 3, the value of the power / voltage stability margin index is compared with the power / voltage stability boundary to judge whether or not the electrical power system is stable, and guidance can be provided for on-line control.
Owner:WUHAN UNIV

Intermetallic compound and carbonitride co-hardened powder metallurgy high-speed steel and preparation method thereof

ActiveCN111793762AReduce grain sizeInterface relationship is goodAlloy elementPowder metallurgy
The invention discloses intermetallic compound and carbonitride co-hardened powder metallurgy high-speed steel, which is prepared by the following steps: strengthening a steel matrix by using an intermetallic compound generated in situ and additional carbonitride, and obtaining the intermetallic compound and carbide co-hardened powder metallurgy high-speed steel by a powder metallurgy method. Theintermetallic compound and carbonitride co-hardened powder metallurgy high-speed steel is obtained by adding specific stable carbonitride and alloy elements and co-strengthening the material by addingthe carbonitride and the in-situ generated intermetallic compound. Due to less carbon in the intermetallic compound and the matrix, the material can keep excellent red hardness and knife sticking resistance, and meanwhile, the addition of the stable high-hardness carbonitride can achieve the effects of obviously refining grains and improving the wear resistance.
Owner:CENT SOUTH UNIV

Floor type isolated switch cabinet for overhead line system

The invention relates to a floor type isolated switch cabinet for an overhead line system. The floor type isolated switch cabinet comprises a stainless steel sealed box, wherein the interior of the stainless steel sealed box is divided into an upper part and a lower part through a partition plate; the upper part is a high-voltage chamber, and the lower part is a control chamber; an air insulation inner cone slide-in cable socket, an electric isolating switch and a supporting insulator are installed in the high-voltage chamber; an electric / manual operating mechanism, an overhead line system isolating switch monitoring device and a high-voltage charged sensor are arranged in the control chamber. The floor type isolated switch cabinet disclosed by the invention is mainly applied to circuits among various sectioned power supply parts in an electrified railway on-off overhead line system in a strong wind area, the power supply flexibility is increased, potential safety hazards are eliminated, the switch body is filled in the closed box, the box is installed at the column bottom, the strong wind speed-increasing area is avoided, sand erosion is avoided, and the reliability of equipment operations is comprehensively improved.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Application control method and device, and mobile terminal

ActiveCN106648737AImprove application management efficiencyAvoid untidy problemsProgram loading/initiatingComputer terminalSoftware engineering
The embodiment of the invention discloses an application control method and device, and a mobile terminal. The method comprises the following steps of: obtaining a set of applications with multiple operated accounts, wherein the set of applications with multiple operated accounts comprises a main application and copy applications of the main application; detecting an identification selection instruction which acts on a main application icon or a main application interface by a user; and according to the identification selection instruction, starting the corresponding main application or the copy applications of the main application. By use of the technical scheme provided by the embodiment of the invention, according to the identification selection instruction which acts on the main application icon or the main application interface by the user, the corresponding main application and the corresponding copy applications are started, so that a starting operation for the main application or the copy applications can be realized in a way that only one main application icon needs to be established on a terminal desktop, an existing application control technology is optimized, and the problems in the prior art that a plurality of copy application icons occupy a large desktop space and the mobile terminal desktop is not tidy since the plurality of copy application icons are established in addition to a situation that the main application icon is established on the desktop are solved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Wind power converter bridge arm multiplex reconstruction control method and system

The invention provides a wind power converter bridge arm multiplex reconstruction control method and system. After a fault occurs, a two-way switch tube on a fault phase is switched on, and a converter enters a bridge arm multiplex reconstruction mode; a network side converter adopts voltage directional control, a machine side converter adopts magnetic field directional control, and three-phase voltage at a machine side and a network side is given; a zero-sequence voltage injection PWM method is used, the given three-phase voltage of the machine side and the network side is converted into modulation voltage of each normal phase bridge arm, and bridge arm multiplex reconstruction control is achieved. A two-way switch is additionally arranged to achieve bridge arm multiplexing, and the control technology of the converter is optimized to achieve bridge arm fault reconstruction control; the reconstruction operation of any bridge arm fault can be achieved, the fault tolerance range is wide,and the response speed is high.
Owner:SHANGHAI JIAO TONG UNIV

Spraying preparation method for Cu/Mo/Cu composite thin plate

The invention discloses a spraying preparation method for a Cu / Mo / Cu composite thin plate. The spraying preparation method comprises the steps: cleaning a molybdenum substrate by adopting alkaline liquid, diluted hydrochloric acid and water in sequence, then performing ultrasonic washing by absolute ethyl alcohol, and blow-drying the substrate after cleaning; selecting Ni powder as transitional layer powder and Cu powder as spraying layer powder; putting the Ni powder and Cu powder into two powder conveyers of a spraying device, adjusting a spraying parameter so as to start spraying, spraying the Ni powder to two sides of the substrate at first to form transitional layers, and spraying the Cu powder on the transitional layers to form spraying layers so as to prepare a Cu / Mo / Cu composite plate blank; performing thermal treatment on the composite plate blank to obtain a Cu / Mo / Cu composite thin plate; performing flattening treatment and thermal treatment on the composite thin film through a fine roller to prepare the Cu / Mo / Cu composite thin plate finished product. The method disclosed by the invention has the advantages of high coating deposition rate, high working efficiency, controllable quality in a preparation process, high energy conservation, environment friendliness, zero pollution and the like and is extremely suitable for industrial application.
Owner:KAIFENG UNIV

Controlling method for scrap steel reeling caused by head part offset at finish rolling exit

A control method for coiling steel scrap caused by the deviation of the exit head of finishing rolling, comprising the following steps: (1), after the strip steel is rolled out from the stand of the finishing rolling mill, after the flatness detection equipment detects the shape of the strip, it is sent into the Coiling position; (2), according to the detection data in the step (1), determine the offset degree of the finishing head; (3), determine whether to issue an opening adjustment command according to the numerical value of the offset degree in the step (2); (4 ), set the opening of the side guide plate to the specified value according to the issued opening adjustment command. The control method not only improves work efficiency and reduces manual intervention; it also avoids wrong intervention and reduces human errors; and effectively reduces accidents of coiling scrap steel.
Owner:BAOSHAN IRON & STEEL CO LTD

Control method and apparatus for virtual reality integrated machine

The embodiment of the invention discloses a control method and device for a virtual reality all-in-one machine. The method includes: the virtual reality all-in-one machine acquires the user's target gesture information collected through the bracelet; the virtual reality all-in-one machine executes an operation associated with the target gesture information according to the target gesture information. The technical solution provided by the embodiment of the present invention uses a virtual reality all-in-one machine to collect the user's gesture information through the bracelet, and executes operations associated with the gesture information according to the technical means, which solves the problems in the prior art. When the user needs to perform certain operations after fixing the virtual reality all-in-one machine, he needs to take off the virtual reality all-in-one machine, resulting in the technical problem that the control operation of the virtual reality all-in-one machine is not convenient and intelligent enough, and optimizes the existing all-in-one virtual reality Machine control technology meets people's growing demand for personalized and convenient virtual reality all-in-one machine control.
Owner:SHANGHAI YUDE COMM TECH

Method and device for controlling restart of loudspeaker boxes, mobile terminal, loudspeaker box and system

ActiveCN105578352ASolve the technical problem of low restart efficiencyOptimal Control TechnologyMicrophonesLoudspeakersWireless mesh networkComputer terminal
The embodiment of the invention discloses a method and a device for controlling the restart of loudspeaker boxes, a mobile terminal, a loudspeaker box and a system. The method comprises the steps of acquiring a restart command which acts on the mobile terminal and is used for restarting at least two loudspeaker boxes to be restarted in a wireless mesh network; and sending the restart command to a current main loudspeaker box in the wireless mesh network, thus allowing the current main loudspeaker box to restart the at least two loudspeaker boxes to be restarted according to the restart command. According to the method provided by the invention, the technical problem that in the prior art, the restart efficiency of the loudspeaker boxes is low due to the fact that only one loudspeaker box can be controlled for restarting and each loudspeaker box needs to be restarted respectively when a plurality of loudspeaker boxes needs to be restarted is solved, the existing loudspeaker box restart control technologies are optimized, and the individual and convenient control requirement on the restart of the loudspeakers is met.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Nanometer agglomerated disc-like mordenite with different densities

The invention relates to nanometer agglomerated disc-like mordenite with different densities. In the prior art, the aggregation density between the nanometer crystals is different when nanometer agglomerated disc-like mordenite spontaneously aggregates to form the special morphology during hydrothermal crystallization. A purpose of the present invention is to mainly overcome the problem in the prior art. The technical scheme comprises that mordenite with a MOR configuration crystallized product is used, the single nanometer mordenite is a short columnar crystal, the three-dimensional size is between 50-600 nm, and the components for glue forming and the hydrothermal crystallization conditions are controlled. With the technical scheme, the problem in the prior art is well solved. Accordingto the present invention, the nanometer agglomerated disc-like mordenite with different densities can be efficiently synthesized.
Owner:CHINA PETROLEUM & CHEM CORP +1

Creased titanium dioxide fiber loaded nanometer silver phosphate composite material and preparation method thereof

The invention belongs to the field of preparation of inorganic nano-materials, and discloses a creased titanium dioxide fiber loaded nanometer silver phosphate composite material and a preparation method thereof. TiO2 / Ag3PO4 composite nano-fibers are prepared by a surfactant-assisted impregnation technology. The preparation method comprises the following steps: dispersing creased TiO2 fibers in deionized water, adding certain amounts of a surfactant and a silver source in proportion, and performing ultrasonic dispersion to obtain a solution A; weighing a phosphorus source according to a stoichiometric ratio, dissolving the phosphorus source in deionized water, and performing stirring to obtain a solution B; and adding the solution B to the solution A, performing stirring in a shady place,filtering the obtained solution, washing the obtained material, and drying the washed material in an oven to obtain the TiO2 / Ag3PO4 composite nano-fibers. In the obtained TiO2 / Ag3PO4 composite nano-fibers, Ag3PO4 particles are uniformly supported on the surface of the TiO2 fibers, and the size of the particles is about 10-20 nm. The light absorption waveband of TiO2 is broadened to the visible light region. The composite material has the advantages of simple preparation process, low cost and controllable morphology and size, and is expected to be widely used in catalytic degradation of organicpollutants.
Owner:JIANGSU UNIV

Synthesis method of nanometer needle-like ZSM-11 and mixed-crystal molecular sieve thereof

The invention provides a synthesis method of a nanometer needle-like ZSM-11 and a mixed-crystal molecular sieve thereof. According to the method, the nanometer needle-like morphology of a ZSM-11 molecular sieve is realized through measures such as aging treatment of a synthetic liquid and successive addition of two synthesis assistants, and the mixed-crystal molecular sieve with the nanometer needle-like morphology containing a ZSM-11 crystal phase can be prepared by adding an induction seed crystal into the synthetic liquid. Compared with a conventional ZSM-11 molecular sieve, the ZSM-11 andthe mixed-crystal molecular sieve prepared by using the method have the advantage of obviously shorter intragranular micropore diffusion path.
Owner:XIANGTAN UNIV

Kit for tracing uterus implanting stem cell prognosis, and preparation method thereof

The invention relates to kit for tracing uterus implanting stem cell prognosis, and a preparation method thereof. A technical scheme is characterized in that the kit comprises nano-particle superparamagnetic iron oxide nanoparticles and near infrared quantum dot silver sulfide labeled umbilical cord mesenchymal stem cells. The defects of long imaging time and limited susceptibility of a magnetic resonance in vivo imaging technology of superparamagnetic iron oxide nanoparticle labeled stem cells and the defects of limited tissue penetrating force and unable organ space structure display of a near infrared quantum dot fluorescence imaging technology are solved in the invention. Outward transfer positions of stem cell colonized tissues can be disclosed 1 week after body positioning stem cells to post-operation. Cell experiments of contrast agents SPIO@SiO2 and Ag2S-QDs prove that the biocompatibility is good, a magnetic resonance apparatus and a near infrared quantum dot fluorescence imager are commercial products, the technology can be highly popularized, and the technology is controllable, is highly safe, is beneficial to scientific researches of stem cell treatment of severe endometrium damages, and protects the welfware of experiment animals.
Owner:THE AFFILIATED DRUM TOWER HOSPITAL MEDICAL SCHOOL OF NANJING UNIV

Rotary camera control method and device, and mobile terminal

The embodiment of the invention discloses a rotary camera control method and device, and a mobile terminal. The method comprises: when it is detected that an access device is accessed into a current mobile terminal, it is determined that the access device is a self-timer auxiliary device or not; and when the access device is a self-timer auxiliary device, the rotary camera of the current mobile terminal is controlled to rotate to the front side of the current mobile terminal. According to the technical scheme provided by the embodiment of the invention, when it is detected that the current access device is a self-timer auxiliary device through a mobile terminal, and the rotary camera of the mobile terminal is controlled to rotate to the front side of the mobile terminal, so that the technical problems are solved that users need to mutually rotate the rotary camera of the mobile terminal to the front side of the mobile terminal for photographing self to cause the complex self-timer and low intelligent degree of the self-timer after the self-timer auxiliary device is accessed into the mobile terminal in the prior art; and moreover, the rotary camera control technology in the prior art is optimized, and the people's control requirement of a customized and convenient rotary camera are satisfied.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Reverse design method, preparation method and application of recycled lightweight concrete

The invention provides a recycled lightweight concrete reverse design method, a preparation method and an application thereof, the reverse design method comprises the following steps: (1) determiningthree component technical indexes of recycled aggregate, recycled light material and recycled powder; (2) obtaining the reference mixing ratio of the recycled lightweight concrete recycled aggregate,the recycled light material and the recycled powder; (3) obtaining the processing volume matching ratio of the regenerated raw materials according to the properties of the three components and the controlled apparent density; and (4) converting the reference mix proportion into a production mix proportion. According to the method, when the regeneration raw materials are replaced or the indexes arechanged, only the processing matching ratio of the regeneration raw materials forming the three components needs to be adjusted, the percent of pass of product performance indexes is increased, stable production is ensured, sufficient reutilization of regeneration resources is achieved, and the application range is wide.
Owner:四川全元新材料科技有限公司

Applied control method, device and mobile terminal

The embodiment of the invention discloses an application control method and device and a mobile terminal. The method comprises the following steps: obtaining a multirun application set; in a master user of a current terminal, accepting the operation, conducted by a user, on a main application and / or a secondary application; according to the operation of the user, conducting processing correspondingly, wherein the main application is installed in the master user and the secondary application is installed in a secondary user. According to the technical scheme in the embodiment, in the master user of the current terminal, the operation, conducted by the user, on the main application installed in the master user and / or the secondary application, installed in the secondary user, of the main application, is accepted, according to the operation of the user, the main application and the secondary application are processed correspondingly so that the terminal can operate the main application and the secondary application in the main user, switching from the main user to the secondary user is not required, an existing application control technology is optimized, and the control efficiency of the main application and secondary application of the terminal is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Nano-aggregated sheet-shaped mordenite

The invention relates to synthesis of nanometer agglomerated sheet-shaped mordenite. In the prior art, during the synthesis of the conventional nanometer molecular sieve, a plurality of nanometer crystals are easily agglomerated to form spheres and other block-like aggregates due to the high surface energy, such that the diffusion speed is slow and the diffusion channel is not smooth in the actualapplication so as to seriously affect the reaction performance of the nanometer molecular sieve and affect the stability of the nanometer molecular sieve. A purpose of the present invention is to mainly overcome the problem in the prior art. According to the present invention, the nanometer agglomerated sheet-shaped mordenite can be efficiently synthesized by adding a small amount of the oxygen-containing organic solvent through the structure-directing action of the organic templating agent tetraethylammonium cation, wherein the composition and the dissociation equilibrium of the silicon-aluminum gel are controlled through the concentration of the tetraethylammonium radical in the synthesis system; and the nanometer agglomerated sheet-shaped mordenite synthesized through the technical scheme can be used for adsorption separation, catalytic conversion in petrochemical industry, and other fields.
Owner:CHINA PETROLEUM & CHEM CORP +1

Formula based on separation and extraction of bakuchiol and industrial production method thereof

The invention discloses a formula based on separation and extraction of bakuchiol and an industrial production method thereof. The method comprises the following steps: firstly, performing supercritical extraction on a raw medicinal material to prepare an oily substance, then stirring an oily sample, prepared according to a ratio of a column mass ratio to a sample of 13.3: 1, with an eluent according to a mass ratio of 1 / 3, uniformly loading the oily sample, and then allowing the oily sample to slowly flow into a dry surface of silica gel along a stirring rod; conducting pressing at a speed of 0.02 column volume per minute to infiltrate the silica gel surface, performing flushing with an eluent having a sample mass ratio of petroleum ether to ethyl acetate of 3:1, and repeatedly adjusting a flow rate according to a polarity principle to separate the sample; and finally, adding an antioxidant, adding 1.5-2.0% of a decolorizing substance according to the properties of the sample, conducting repeated decolorizing at 50 DEG C two times, and finally, conducting concentrating until no solvent smell exists to obtain a red transparent substance. According to the invention, a control technology in the pretreatment and posttreatment of samples and in an experiment process is optimized, and the purposes of reducing cost and greatly improving yield and purity can be achieved.
Owner:张蕊鑫

Microwave absorbent based on synergistic coupling protection and preparation method thereof

The invention relates to a microwave absorbent based on synergistic coupling protection and a preparation method thereof. The preparation method takes ferrite fiber as a carrier to load barium titanate nanoparticles and comprises the following specific preparation steps that metal salt and polyvinylpyrrolidone are dissolved in an ethanol solution, and the ferrite fibers are prepared through a sol electrospinning charge high-temperature calcination technology; and soluble barium salt and tetrabutyl titanate are added into an organic solvent, a surfactant is added, and solvothermal reaction is conducted at 150-180 DEG C to obtain the ferrite and barium titanate composite fiber material. The preparation method has the characteristics of wide raw material source, low cost and excellent performance, the preparation technology is simple and easy to control, and industrial production is easy to realize.
Owner:JIANGSU UNIV +1

Applied control method, device and mobile terminal

The embodiment of the invention discloses an application control method and device and a mobile terminal. The method includes the following steps: according to setting, determining rules, determining a substituted application associated with a main application as an associated substituted application, detecting an operation command acting on an operation interface of the main application, according to the operation command, conducting the corresponding operation on the main application and the associated substituted application, wherein the operation command of the associated substituted application is received through the operation interface of the main application. According to the technical scheme provided in the embodiment, when the operation command acting on the main application is detected, and the corresponding operation is conducted on the main application and the associated substituted application associated with the main application, so that no substituted application icon needs to be created on the desktop of the terminal, the operation on the substituted application icon can still be achieved, an existing control technology of applications is optimized, and the technical problems that the substituted application icon occupies a larger space on the desktop of the mobile terminal and the desktop is not clean and tidy are solved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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