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The invention discloses a hybrid automatic repeat request transmission method based on a polarization code. The hybrid automatic repeat request transmission method based on the polarization code comprises the following steps: after a coding bit sequence obtained after polarization coding is carried out to a sent information bit sequence is punched via a sending end, sending into a channel to be transmitted; decoding a received signal by a receiving end for CRC (cyclic redundancy check); if the received signal passes the check, feeding back an ACK (acknowledgement character) signal to the sending end, and otherwise, sending a NACK (negative acknowledgement) signal; if the sending end receives the NACK signal, sending one part of uncoded information bits to a receiving end again; according to the coding bit received for the first time and a newly-received information bit, decoding again by the receiving end; if a decoding result still does not pass the CRC, sending the other part of uncoded information bits to the receiving end again by the sending end; according to the coding bit received for the first time, the information bit received in the previous time and the newly-received information bit, decoding again by the receiving end; continuously executing the process; and finishing one whole transmission process until the sending end receives the ACK signal or the number of sending times reaches a preset maximum value.

The invention relates to a liquid phase chip for joint detection of multiple tumor markers and a preparation method thereof. The liquid phase chip comprises micro-balloons of a coupled antibody (at least two of the followings: AFP, CEA, CA125, CA153, CA19-9, CA242, CA72-4, PSA, HGH, Beta-HCG), corresponding biotin-labeled detection antibodies, streptavidin phycoerythrin and vegetable hydrosol or polysaccharide hydrosol which has a solute content of 1-10 wt per thousand and does not contain protein. The preparation of the liquid phase chip comprises refining and purification of hydrosol, coupling between captured antibodies and micro-balloons, preparation of biotin-labeled antibodies, dispersing the coupled micro-balloons into the vegetable hydrosol or the polysaccharide hydrosol, and the like. The liquid phase chip has the advantages of stable performance, good micro-balloon dispersivity, long preservation time, fast and convenient use and operation, small amount of samples in use, high detection sensitivity, wide linear scope and low detection cost, can detect ten tumor markers at most at one time, and requires a cost which is a quarter of the total fee of conventional methods.

The invention relates to a perovskite / polymer composite luminescent material and a preparation method thereof, which belong to the technical field of composite materials and luminescent materials, wherein the structural formula of the perovskite is R1NH3AB3 or (R2NH3)2AB4, A and B form a ligand octahedral structure, R1NH3 or R2NH3 are filled into gaps of the ligand octahedral structure which is formed through the A and the B, R1 is methyl, R2 is a long-chain organic molecular group, the A is any one of metal Ge, Sn, Pb, Cu, Mn, Sb and Bi, the B is any one of Cl, Br and I. The perovskite / polymer composite luminescent material which is made through the preparation method is high in luminescent intensity, high in luminescent color purity, excellent in light and thermal stability and excellent chemical resistant property and mechanical property, and lays the foundation for theory research and application of the perovskite / polymer composite luminescent material in high-performance photoluminescence devices, flexible display, lasers, nonlinear optical devices. The preparation method can obtain composite materials which can cover a whole visible region through luminescent wavelengths, and has wide application prospect in the fields of wide gamut light emitting diode (LED) and high performance displays and the like.

The invention relates to a 3D printing cement-based material and a preparation method thereof. The 3D printing cement-based material is composed of a powder form gelling material and an aggregate, the powder form gelling material is composed of cement, an active admixture, a water reducer, a hardening accelerator, an adjustable solidification agent, an expanding agent, a binder, an air-entrainer, a plasticity-maintaining agent, a water repellent, starch ether, a powder filling material and fiber, and the aggregate is composed of a fine aggregate and a crude aggregate. Compared with prior art, the 3D printing cement-based material has the advantages of good work performance, constructability performance, mechanical property and endurance performance.

The invention discloses a preparation method for propellant fuel. The preparation method comprises the following steps: uniformly mixing hydrazine or a methyl derivative thereof with a tetrahydrofuransolution of borane to perform a reaction, and after the reaction, performing rotary evaporation on the tetrahydrofuran solution to obtain a first product; adding a first solvent into the first product, then performing washing, and then performing rotary evaporation to remove the first solvent, so as to obtain a hydrazinoborane derivative. According to the method, hydroboration is carried out on ahighly-volatile hydrazine fuel and a methylated derivative of hydrazine, the obtained borohydride of the hydrazine is a colorless non-volatile liquid or a white solid, has no volatility and greatly reduces hazard of the hydrazine fuel, and is a novel aerospace propellant fuel since the ignition delay time of the hydrazine borofluoride is extremely short.

The invention discloses surface anti-corrosion sol for an aeronautic aluminum alloy material and a treatment method thereof in the technical field of aluminum alloy surface treatment. The sol comprises the following components in percentage by weight: 1-15 percent of organosiloxane, 45-93 percent of organic solvent, 0.1-10 percent of additive, 0.5-10 percent of rare earth salt, 5-50 percent of deionized water and 0.1-5 percent of catalyst. In the invention, a coating with a compact netlike crosslinking structure is formed on the surface of an aluminum alloy matrix and has high chemical stability and thermal stability, so that influence of an external acidic and alkaline environment and temperature variation on the coating can be resisted; and the coating has higher mechanical strength, rain washing resistance, friction resistance and scratch resistance. The technical method is simple, is easy and convenient to operate, does not have high requirement on equipment and is environmentally-friendly and pollution-free.

The invention discloses an interactive method based on multimedia programs, a terminal, a server and a system and belongs to the technical field of networks. The interactive method comprises the steps of obtaining at least segment image information of the multimedia programs in the multimedia program playing process; sending the segment image information, wherein the segment image information are used for being matched with corresponding multimedia programs; receiving interactive information corresponding to the multimedia program information; outputting an interactive interface and performing interaction with the multimedia programs based on interactive operations of the interactive interface. The operations are simple and convenient, and the interactive efficiency is improved.

The invention discloses a method for preparing antithrombotic medicament apixaban. The method comprises the following steps of: obtaining a compound V by performing an amidation-cyclization two-step one-pot reaction on paranitroaniline serving as a raw material and a general purpose reagent 5-chlorine valeryl chloride under an alkaline condition; performing di-chlorination on the alpha-hydrogen of the V by using phosphorus pentachloride; performing a condensation-elimination reaction with excess morpholine to obtain a compound VI; reducing the VI into a compound VII by using sodium sulfide; performing the amidation-cyclization two-step one-pot reaction on the VII and the 5-chlorine valeryl chloride to obtain a key intermediate III; obtaining II by performing a [3+2] cyclization-elimination reaction on the III and another intermediate IV; and finally, obtaining I by performing aminolysis on the II. The method has the advantages that: process design is reasonable, expensive reagent is not used, reaction yield is high, raw material cost is low, and the method is simple and convenient to operate, has no harsh reaction condition, and is easy to perform large-scale production.

The invention provides a subcritical liquid extraction device and a subcritical liquid extraction method of active ingredients of natural products, relating to a device and a method for extracting active ingredients of natural products. The device comprises a control system part and a leaching system part, wherein the leaching system part comprises an extraction tank 1, an evaporating tank 2, a buffer tank 3, a condenser 4, a solvent tank 5, an ultrasound generating device 11, a vacuum pump 9, a fire arrester 10, a compressor 8, a hot water pump 7 and a hot water box 6; the control system partcomprises a leaching temperature controller, a leaching time controller, a leaching frequency controller, a material dissolving ratio controller, an exsolution temperature regulation controller, an exsolution pressure feedback controller, an electric appliance controller of the device and an excess-temperature excess-pressure leaking alarm. The method can select different subcritical extraction media according to different extraction products, combines a subcritical liquid extraction technology and an ultrasonic extraction technology to increase extraction rate and reduce extraction time andis a new high-efficiency low-consumption environment-friendly technology for extracting active ingredients of natural products.

The invention discloses hot pepper and a determining method for 96 pesticide residues in a product of the hot pepper. The determining method comprises the following steps: homogenously extracting residual pesticide in a sample with 1% acetic acid-acetonitrile solution, purifying the extracting solution with a Florisil solid phase extraction column, dispersing and purifying the extracting solution with ethylenediamine-N-propyl silane (PSA) and octadecyl silane bonded phase (C18) substrate, detecting 69 pesticide residuals in the purified concentrated liquid of the Florisil column by GC-MS (gaschromatographic mass spectrometry), detecting 27 pesticide residuals in the substrate dispersed purified liquid by liquid chromatography-tandem mass spectrometry (LC-MS / MS), using the black substrate solution dilution standard to construct the updated calibration curves, adopting an internal standard method to quantify when using GC / MS to detect the residuals, and adopting an external standard method to quantify when using LC-MS / MS to detect the residuals. The average recovery rate of the method is 70.7-118.6%; the average relative standard deviation (RSD) is 3.2-11.4%; the detection limit is 0.13-28.2 ug / kg. The determining method has the advantages of simplicity and convenience in operation, high speed, accuracy, high sensitivity and good repeatability.

The present invention provides a preparation method of (S)-4-hydroxyl-2-oxo-1-pyrrolidine acetamide. The preparation method comprises: (S)-4-halogen-3-hydroxyl butyric ester as a raw material reacts under the conditions with polar solvent and alkalinity to prepare the crude product of (S)-4-hydroxyl-2-oxo-1-pyrrolidine acetamide; and the crude product is purified. The preparation method is characterized in that inorganic alkali is added for a plurality of times in the reaction process under the condition with alkalinity so as to control the pH value in the reaction to be less than or equal to 8.5. A large quantity of repeated tests are completed to determine that the optimum pH value of the reaction under the condition with alkalinity is less than or equal to 8.5, and the alkali is added in batches to strictly control the pH value of the whole reaction process, so that the alkali conditions required in the reaction can be satisfied and the reaction can be performed completely, and the target product (S)-oxiracetam is prevented from being damaged in the alkaline solution, thereby improving the yield rate of the target product (S)-oxiracetam and reducing the cost.

The invention discloses a method for producing aromatic hydrocarbon by adopting raw materials containing methanol. The raw material containing methanol comprises the methanol and Fischer-Tropsch synthesis naphtha. In the method, the raw materials containing methanol and a catalyst undergo a contact reaction under the condition of producing the aromatic hydrocarbon by using the methanol. By adopting the method disclosed by the invention, the problem that great removed heat is needed to be adopted in the prior art is solved; and the method has the advantages of simple flow and simpleness and convenience for operation. By adopting the method provided by the invention and a good method for processing and utilizing Fischer-Tropsch synthesis naphtha components, aromatic hydrocarbon products are produced or the octane value of the Fischer-Tropsch synthesis naphtha components is increased to gasoline mediated components with a high octane value.

The invention discloses an automatic generation method used for a single line diagram of a distribution network and based on topological hierarchy. The method comprises the following steps: deleting related equipment in a topological structure of the distribution network, and simplifying the topological structure of the distribution network; acquiring key nodes of the topological structure of the distribution network, and generating a main framework of the topological structure of the distribution network; arranging the positions of the key nodes based on a gravitation-repulsion model, and obtaining a skeletal structure based on the gravitation-repulsion; describing the topological structure of the distribution network through an outgoing line-trunk line-T-shaped key node-branch line model of a power station; finishing the arrangement and the automatic mapping of the equipment in the power station on the basis of the topological structure of the equipment in the power station; and performing routing mapping without overlap or intersection on decibels of the trunk line and the branch line respectively. The automatic generation method achieves automatic generation of the single line diagram of the distribution network above a certain scale, and simultaneously, the generated single line diagram is clearer and more attractive through the routing algorithm without overlap or intersection.

The invention relates to a foldable flexible display device which comprises a supporting mechanism used for supporting a bending part of a flexible display screen, wherein the supporting mechanism comprises a first supporting plate and a second supporting plate; when the display device is located in an unfolding position, the first supporting plate and the second supporting plate slide to the positions under the bending part so as to jointly support the bending part; and when the display device is located in a folded position, the first supporting plate and the second supporting plate are departed from the positions under the bending part. Compared with the prior art, the foldable flexible display device provided by the invention can solve the problem that the bending part of the flexible display screen is not supported in an unfolded state, and meanwhile, the bending part is prevented from being tightly bent in a folded state; and the structure is simple, and the operation is simple and convenient.

The present invention provides a visible and controllable intelligent household control system and a control method thereof. The control system utilizes an instant image of the intelligent household electrical appliances which is caught on the spot to identify the intelligent household electrical appliances, then generates a virtual entity operation interface and / or auxiliary operation interface based on the intelligent household electrical appliance instant image or a preset image, and then users can operate and control the intelligent household electrical appliances. The control system of the present invention utilizes the instant image of the intelligent household electrical appliances to identify the to-be-controlled intelligent household electrical appliances of users, so that users do not need to select the intelligent household electrical appliances needing to be controlled from a household electrical appliance list any more, and can control the intelligent household electrical appliances as long as seeing the intelligent household electrical appliances. The virtual entity operation interface provided by the control system of the present invention is completely same with an entity operation interface, so that users have the feelings of operating the intelligent household electrical appliance entities directly. The control system is strong in visibility and good in user experience, is convenient to operate and easy to use, even can be used by the illiteracy. In addition, the control system of the present invention can be realized by a portable intelligent terminal, is simple and easy in equipment, good in universality and low in cost.

The invention relates to high optical spectral image technique without harm to agricultural products. It can reflect the appearance of the agriculture products like color, shape, texture, dimension, scar and son on, and internal features like hardness, protein content and connected with knowledge base and experience of experts to make judgment. It can make quick, accurate, timely judgment of products, controlling the overall production with guarantee of the agriculture quality.

A method for preparing aromatic hydrocarbons by methanol-containing raw materials. The methanol-containing raw materials comprise methanol and distilled gasoline. The method comprises that the methanol-containing raw materials and catalysts undergo a reaction under conditions of preparing aromatic hydrocarbons by methanol. The method provided by the invention solves the problems that in the prior arts, heat in a reactor is removed through an intermediate cooler and a multitubular reactor is utilized for heat removal or cold product gas is transmitted back to a raw material inlet to remove heat or a diluting material is added to control reaction heat. The method has the advantages of simple processes, and simple and convenient operation.

The invention discloses a method for preparing bi-(sulfonyl fluoride) imine and (fluorinated alkyl sulfonyl fluorine sulfonyl) imine alkali metal salt. The method comprises the following steps of: reacting sulfamide and thionyl chloride and chlorosulfonic acid to prepare bi-(sulfonyl chlorine) imine and (fluorinated alkyl sulfonyl chlorine sulfonyl) imine, reacting with antimony trifluoride and potassium carbonate (rubidium or caesium) to obtain corresponding high-purity bi-(sulfonyl fluoride) imine potassium (rubidium or caesium) salt or (fluorinated alkyl sulfonyl fluorine sulfonyl) imine potassium (rubidium or caesium) salt, performing double decomposition exchange reaction using the potassium (rubidium or caesium) salt with the lithium perchlorate (or sodium) or lithium tetrafluoroborate (or sodium) in the aprotic polar solvent to obtain corresponding lithium (or sodium) salt with high purity. The method in the invention has the characteristics of simple operating steps, easy separation and extraction of output, high purity and yield, no environmental pollution, and the like, and is suitable for mass industrial production.

The invention discloses a preparation method of a core-shell structured synthetic polymer-natural polymer composite fiber, and the method comprises the steps of: (1) selecting one or several of synthetic polymers to dissolve in a solvent, and conducting stirring until complete dissolution; (2) selecting a natural polymer to dissolve in a solvent, or adding a spinning assistant, and carrying out stirring until complete dissolution; and (3) taking the solution prepared in step (1) as an outer tube spinning solution, adopting the solution prepared in step (2) as an inner tube spinning solution, injecting them into the inner tube and the outer tube of a coaxial spinneret, and performing coaxial electrospinning at room temperature. The core-shell structured nano-fiber prepared by the invention selects the synthetic polymer as the shell layer, and can inhibit water molecules from penetrating the natural polymer as the core layer. The natural polymer as the core layer can more effectively encapsulate active substances to avoid inactivation of the active substances in the presence of an organic solvent, so that the core-shell structured composite fiber can play a good drug sustained release role in the drug carrier field, and an integral activity can be maintained.

The invention discloses a method for quickly identifying and distinguishing the variety of corn, which belongs to the technical field of the detection of agricultural products. The method identifies the variety of the corn by an image processing technology quickly. Seed image information is obtained by a scanner, corn seeds are identified by a corn variety identification system on a computer, original image information is read, the image information of each pixel in each corn is stored as a 24-bit bmp format file, and the variety of the corn is distinguished by a trained neural network classifier after image processing and feature extraction are completed. The variety distinguishing rate of the model to an unknown sample is greater than 90%, which shows that a condition that the variety of the corn seeds is distinguished by image feature information is feasible. The invention has the characteristics of high automatization degree and quick, simple and convenient operation.

The invention discloses a Bluetooth interconnection method and system for a wearable device and a mobile terminal. Bluetooth of the wearable device broadcasts custom broadcast information to the periphery in a low power consumption mode in a connectable and non-directional way, wherein the custom broadcast information includes a corresponding Bluetooth address and a Bluetooth name; the mobile terminal scans and acquires the custom broadcast information of each wearable device, and records the corresponding Bluetooth address and Bluetooth name of each wearable device and a Bluetooth received signal strength value; Bluetooth of the mobile terminal transmits a custom connecting request to the Bluetooth of the wearable device with the largest Bluetooth received signal strength value; the wearable device receives a connection confirmation message and transfers the connection confirmation message to the Bluetooth of the mobile terminal through a general attribute protocol layer to finish interconnection; and the mobile terminal is close to the wearable device, then the mobile terminal can be automatically connected to the wearable device. In the whole process, the user operation is simple and convenient and any manual setting is not required, thus the use is very convenient and the interconnection is convenient.

The invention relates to the graphene composite material field, and particularly to a graphene foam / polymer high-conductivity composite material, a preparation method and applications thereof. Steps of the method comprises as follows: providing a fully communicated three-dimension grapheme foam network and a precursor solution of a high-molecular polymer; mixing the graphene foam with the precursor solution of the high-molecular polymer to form a graphene foam / high-molecule polymer precursor mixture; and solidifying the precursor of the high-molecular polymer in the mixture to form a high-conductivity graphene foam composite material. The invention adopts the three-dimension graphene foam to form a fully- communicated graphite rapid transmission network by a seamless connection, which enables the graphene foam composite material to possess great conductivity and mechanical property and can be widely applied to the conductive composite materials and elasticity conductor field.

An embodiment of the invention discloses a photo sharing method and device. The photo sharing method includes performing clustering according to shooting time of photos in a photo base to obtain at least one photo cluster; based on information (such as shooting places) of photos in the photo clusters, determining a to-be-shared photo cluster from each photo cluster; sharing the to-be-shared photos with users corresponding to people in the to-be-shared photos. In this way, the photos to be shared with friends are automatically recognized from the photo base, without manual one-by-one selection from the photo base; the photos are automatically sent to the friends in the photos, and manual one-by-one selection of the friends from a friend list is omitted. The photo sharing method and device is easy to operate and high in efficiency.

The present invention discloses a laser induced composite cladding measure and device for the automatic powder feeder. The present invention couples the laser beam and the high frequency electromagnetic induction heating so as to realize the composite cladding between the laser and the induction heating. The device comprises a laser, a laser light guide device, a laser gathering system, a high frequency induction heater, a digital control machine tool and a workpiece holding device. In work, the distance between the surface of workpiece under treatment and the induction heating coil is 1 to 10 mm. The present invention has a strong commonality and can conduct surface treatment of laser induced composite cladding high performance material coat toward the surface of the solid components in various materials and the inner and outer surfaces of the tubular spare parts. The cladding measure is characterized in that: the high frequency induction heater heats up the workpieces simultaneously and the automatic power feeder is applied to deliver the cladding powder to the laser irradiation area on the surface of the workpiece, so the alloy powder is instantaneously melted under the action of laser beam to form an alloy layer; and the maximum cladding speed reaches 10 m / min and the cladding efficiency is improved by one to ten times than the regular laser cladding and the powder utilization rate exceeds 90 percent; the applicable cladding materials have a wide range, comprising various wear resistant, corrosion resistant materials or high temperature resistant oxidizing materials as well as the composite materials; moreover, the cladding layer has no pores and crackles.

The invention relates to a kit for determining heart-type fatty acid binding protein in serum or urine by latex enhanced turbidimetric immunoassay. Specifically, the kit for determining the heart-type fatty acid binding protein comprises a reagent R1, a reagent R2 and a calibrator, wherein the reagent R1 contains a reaction promoter, an antiseptic, a surfactant, a stabilizing agent, an electrolyte and a buffer; the reagent R2 contains latex particles with binding of anti-heart-type fatty acid binding protein monoclonal antibody and polyclonal antibody, an antiseptic, a surfactant, a stabilizing agent, an electrolyte and a buffer; and the calibrator contains an antiseptic, an electrolyte, a stabilizing agent, a heart-type fatty acid binding protein pure product and a buffer. By the complex coating method of latex particles with the monoclonal antibody and the polyclonal antibody, high sensitivity and wide linear range of the kit are guaranteed. Simultaneously, the kit also has advantages of high accuracy, good repeatability, strong singularity, easy operation and the like, and is applicable to an automatic biochemical analyzer which is commonly used in clinic.

The invention provides sustained-release chlorine dioxide gel comprising the following components by weight percent: 0.1% to 5.0% of chlorine dioxide precursor, 1.0% to 10.0% of gel, 0.01% to 2.0% of chelating agent, 0.1% to 10.0% of inclusion agent, 30% to 70% of activating agent, 0.1% to 5.0% of sustained-release agent, 0.1% to 5.0% of stabilizing agent and deionized water in balancing amount. The sustained-release chlorine dioxide gel of the invention is capable of conducting the stable sustained-release process at a certain rate for 3 to 6 months, so the sustained-release chlorine dioxidegel has the advantages of long release period, uniform and stable release rate and lasting effect; the sustained-release chlorine dioxide gel is capable of not only removing formaldehyde from indoor air in an effective, safe and lasting way and ensuring the high removal rate of formaldehyde, but also disinfecting and sterilizing the indoor air continuously and thoroughly purifying the indoor air;moreover, the invention dispenses with high-purity chlorine dioxide gas and further has the advantages of simple preparation method and convenient operation.

The invention relates to an enzyme-linked immune analysis method and a fully-automatic enzyme-linked immune analyzer. The analyzer comprises a rack component, a washing component, a sample adding / reagent adding component, a heating and temperature control component, a fluid path system, an input and output device, an optical measurement component and a control system, wherein the rack component comprises a rack soleplate; a pillar is arranged on the rack soleplate; a lower fixed plate and an upper fixed plate are arranged on the pillar from bottom to top in sequence; a circular reaction plate is arranged between the lower fixed plate and the upper fixed plate; the circular reaction plate is connected with the upper fixed plate and the lower fixed plate through a central shaft; a first motor is fixedly arranged at the lower part of the lower fixed plate; and the first motor is used for driving the circular reaction plate to rotate through a first transmission mechanism. When in use, the enzyme-linked immune analysis method and the fully-automatic enzyme-linked immune analyzer can carry out the detection of corresponding projects without wasting reagent through only one sample; and detection reagents need not to be respectively contained in different reagent bottles, so that the operation is very convenient, and the operation error is not easily caused, thereby ensuring the accuracy of the detection results.

The invention relates to a three-dimensional circuit manufacturing process, in particular to a packaged technology which utilizes laser scanning to selectively deposit an accurate and tight conductive circuit pattern and directly welds electronic components on a plastic surface. The method comprises the following steps: 1, synthesizing the laser plastic material containing an organic metal compound; 2, carrying out injection molding on the laser plastic material to obtain plastic pieces; 3, selectively scanning the plastic pieces by laser to form a pattern reducing metal particles; 4, carrying out rapid ultrasonic electroless plating to thicken the metal layer on the pattern and form a continuous conductive pattern; and 5, carrying out plasma chemical polishing. The invention also fuses a laser layering sintering (SLS) rapid forming technology and contains a laser direct structuring (LDS), provides process and equipment innovation, and becomes an environmental-friendly and flexible intelligent manufacturing core technology for a new generation of electronic, electrical and electromechanical integrated products; and the invention can be applied to electronic industries, aerospace, transportation, industrial control and other fields.

The invention relates to a cloud-platform-based remote operation and maintenance system characterized by comprising a cloud gateway located at an industrial field, a cloud platform located at a cloudend, a mobile operation terminal device and a monitoring Web client. The cloud-platform-based remote operation and maintenance system provided by the invention is simple in structure and good in universality, and can be widely applied to equipment or production line operation and maintenance systems. The cloud platform of the invention has an online configuration function, and can quickly configure a real-time monitoring interface according to field requirements for different application fields. The cloud gateway is adaptable to different industrial field applications. Further, the system is flexible, easy to operate and good in maintainability.