Fire flood eclectic ignition device

The invention relates to a fire flood eclectic ignition method. An ignition device adopted by the fire flood eclectic ignition method comprises a steam injection pipe column and an ignition system, wherein the steam injection pipe column comprises a flare opening, a check valve, a bracket, an oil pipe and a wellhead device from top to bottom; the electric ignition system comprises a ground part and an underground part, wherein the ground part comprises an intermediate frequency power supply control cabinet, a loop cable, a cable conductor and a cable sealer, and the underground part comprisesa conductor, an igniter, an insulated centralizer, a screen pipe, the cable conductor, an insulated isolation wire connector and the cable conductor from bottom to top. The fire flood eclectic ignition method is easy to operate, the ignition device has high maneuverability, repeatable use, controllable temperature and uniform heating temperature, and fire flood eclectic ignition can obtain good effect ...

Degradable high polymer material of poplar wood pulp cellulose and its preparation method

Automatic production line for nanometer injection molding products

The invention discloses an automatic production line for nano injection molding products, and relates to the technical field of nano injection molding. The automatic production line comprises an injection molding machine and further comprises a heating device, a preheating, heat preservation and positioning device, a first carrying device, a second carrying device and a third carrying device. The heating device is used for heating the first metal piece; the first carrying device is used for carrying the heated first metal piece to the preheating heat preservation positioning device for heat preservation positioning; the second carrying device is used for carrying the second metal piece to the preheating heat preservation positioning device for preheating positioning; the third carrying device is used for carrying the first metal piece subjected to heat preservation positioning and the second metal piece subjected to preheating positioning into the injection mold together; the injection ...

PICTURE PROCESSING METHOD AND APPARATUS FOR INSTANT COMMUNICATION TOOL

A picture processing method and an apparatus for an instant communication tool belong to a computer field. The method includes: obtaining related information of an edit area, wherein the related information at least includes an abscissa range and an ordinate range; when a start notification is received, obtaining position information of a start cursor and recording the position information, wherein the position information at least includes a coordinate; obtaining position information of current cursor in real time, generating a line based on the position information of the current cursor, the recorded position information and the related information, and updating the recorded position information to the position information of the current cursor. The apparatus includes: a first obtaining module, a second obtaining module and a generating module. The invention can draw a line along a cursor moving trace.

Preparation method of high solid content expandable melamine modified urea resin

The invention discloses a preparation method of high solid content expandable melamine modified urea resin. The preparation method is as follows: a non-dehydration preparation process is adopted, paraformaldehyde is depolymerized under the alkaline condition to obtain high concentration formaldehyde solution, and the high concentration formaldehyde solution reacts with urea and melamine to directly prepare the high solid content expandable melamine modified urea resin. The solid content of the prepared urea resin is 70%-80%, the viscosity is 800-1200MPa and the content of free formaldehyde is 0.1%-0.25%. The apparent density of the melamine modified urea resin foam material obtained through foaming is up to 0.03-0.05g/cm<3>, the oxygen index is 50%-70%, the foam material can meet the requirements of the new building material with light weight and fire resistance; and the invention provides a new way for the development and utilization of the fire resistant and environmentally friendly urea ...

PICTURE PROCESSING METHOD AND APPARATUS FOR INSTANT COMMUNICATION TOOL

A picture processing method and an apparatus for an instant communication tool belong to a computer field. The method includes: obtaining related information of an edit area, wherein the related information at least includes an abscissa range and an ordinate range; when a start notification is received, obtaining position information of a start cursor and recording the position information, wherein the position information at least includes a coordinate; obtaining position information of current cursor in real time, generating a line based on the position information of the current cursor, the recorded position information and the related information, and updating the recorded position information to the position information of the current cursor. The apparatus includes: a first obtaining module, a second obtaining module and a generating module. The invention can draw a line along a cursor moving trace.

Biodegradable polymer material compatibilized and blended by lignocellulose and preparation method thereof

The invention discloses a biodegradable polymer material compatibilized and blended by lignocellulose and a preparation method thereof. The biodegradable polymer material is composed of a resin mixture and a compatibilizer. The resin mixture is composed of resin and cellulose acetate or cellulose acetate propionate which is prepared from cellulose of poplar wood pulp. The resin is selected from any one of polycaprolactone, polylactic acid and polyhydroxybutyrate. The compatibilizer is a block copolymer of polycaprolactone-acid anhydride compound and the use amount of the compatibilizer is 2-30% of the total mass of the resin mixture. The preparation method provided by the invention comprises the following steps of: mixing celluosic resins to obtain the resin mixture; then compulsively feeding after adding the resin mixture and the compatibilizer into a feed bin of a double-screw extruder; cooling the extrudate by air and then dicing the extrudate into particles to obtain resin particles ...

Accumulative method and device of air flow

The embodiment of the invention discloses an accumulative method and device of air flow. The method comprises the steps that first, an air flow signal value and an air pressure value and/or air temperature value are acquired, and smoothing processing is conducted on the air flow signal value; then the air pressure value and/or the air temperature value are used for compensating the air flow signal value after smoothing processing, and an instantaneous air flow value is acquired according to the compensated air flow signal value; at last, the remaining fraction value obtained by the last accumulated air total flow value is acquired, the remaining fraction value is accumulated to the instantaneous air flow value, the integer part and the fraction part of the accumulated air flow value are acquired, the integer part is accumulated to the air total flow value, and the fraction part is used as the remaining fraction value.

Automatic feeding device and feeding method for combined vibration disc

The invention provides a combined vibration disc automatic feeding device and method. The device comprises a vibration assembly, a feeding assembly, a material rubbing assembly and an ejection air cylinder. Wherein the to-be-fed materials are placed in the vibration assembly, and the vibration assembly drives the to-be-fed materials to be conveyed out in a one-by-one vibration mode; the feeding assembly is connected with the vibration assembly, and the feeding assembly is used for conveying to-be-fed parts conveyed by the vibration assembly to the material rubbing assembly according to a preset path; the material rubbing assembly is used for conducting material rubbing treatment on the conveyed to-be-fed materials, and the to-be-fed materials are ejected out through ejector pins on an ejection air cylinder so that the to-be-fed materials can be taken away conveniently. By means of the feeding device, the scattered to-be-fed materials can reach the designated position according to the set ...

Preparation of alkali lignin-phenolic composite adhesive for timber industry

The invention relates to a method for preparing an alkali lignin-phenolic resin composite adhesive for wood adhesive, which comprises the steps that hydroxymethylation alkali lignin is prepared; and the alkali lignin-phenolic resin composite adhesive is prepared. The method adopts hydroxymethyl reaction to improve the activation of alkali lignin; the hydroxymethylation alkali lignin is prepared; lignin is selected and added by three batches; the batch addition of the lignin can achieve the function of adjusting the degree of the hydroxymethyl reaction, contribute to the realization of the hydroxymethyl reaction, reduce the condensation reaction between lignin hydroxymethyls and achieve the aim of the farthest activation of the lignin. In the synthetic process, the PH value and viscosity in the reaction are strictly controlled; and the batch feeding method is used to carry out orderly and rapid hydroxymethyl reaction. As the lignin has huge molecular weight, large space steric hindrance ...

Cellulose-based nitrogen-phosphorus flame retardant and preparation method thereof

The invention relates to a cellulose-based nitrogen-phosphorus flame retardant and a preparation method thereof. The preparation method comprises the following steps: dissolving a cellulose derivative into a solvent under the stirring condition that the speed is 100-1000 revolutions per minute so as to form uniform phases, adding micromolecule amine compounds as an acid-binding agent, and introducing nitrogen, wherein the water content of the cellulose derivative is less than 1%; dropwise adding phosphorus oxychloride into the solution, and continuously stirring for 1-10 hours while the reaction temperature is maintained at 25-100 DEG C; washing until no chloride ion exists, adding amino compounds into water which serves as a solvent according to the solid-to-liquid ratio of (1 to 1)-(1 to 50), and continuously stirring for 1-10 hours while the reaction temperature is maintained at 25-100 DEG C; filtering and drying to obtain the cellulose-based nitrogen-phosphorus flame retardant, wherein ...

Acorn powder/polycaprolactone composite material and preparation method thereof

The invention discloses an acorn powder/polycaprolactone composite material which mainly comprises the following components in parts by weight: 10-90 polycaprolactone, 10-90 acorn powder and 10-40 plasticizer. 0-20 acorn shell fibrous filler and 0-30 bulking agents can be also added in the composite material, wherein the acorn shell fibrous filler is selected from any one of natural acorn shell fiber powder and modified acorn shell fiber. In the acorn powder/polycaprolactone composite material, acorn fruits as regenerative plant resources in agriculture and forestry are adopted and converted into a new material with use value. The acorn shell fibrous filler is used as filling material, thereby really realizing the full materialization utilization of the acorn fruits. Compared with common starch, i.e. cornstarch, the composite material has better mechanical property, can be completely degraded and be widely used for manufacturing plastic products.

Imperceptible watermark attack method based on generative adversarial network

The invention discloses an imperceptible watermark attack method based on a generative adversarial network, which relates to the technical field of digital watermarking, and is characterized by comprising the following steps: S1, reinforcing redundant information; a data preprocessing scheme of redundant information enhancement is carried out on the training set; s2, constructing a loss function; on the basis of feature comparison, perception loss is improved, and a peak signal-to-noise ratio is introduced into the perception loss. The technical problem to be solved by the invention is to provide the imperceptible watermark attack method based on the generative adversarial network, and watermark information is effectively attacked while high imperceptibility of watermark attacks is ensured.

Slide rail mechanism for vehicle seat and vehicle

A slide rail mechanism for a vehicle seat and a vehicle, the slide rail mechanism comprising: an upper slide rail assembly for mounting the vehicle seat; the bottom of the upper sliding rail assemblyis movably supported on the lower sliding rail assembly, a plurality of locking holes are formed in the lower sliding rail assembly in the length direction, and vibration isolation pieces are arrangedbetween the two sides of the upper sliding rail assembly and the lower sliding rail assembly; the locking assembly is installed on the upper sliding rail assembly, the locking assembly is provided with a locking claw capable of rotating relative to the upper sliding rail assembly, and the locking claw is suitable for extending into at least one locking hole so that the upper sliding rail assemblyand the lower sliding rail assembly can be locked. According to the sliding rail mechanism for the vehicle seat, the upper sliding rail assembly can smoothly slide relative to the lower sliding railassembly ...

Low-molecular-weight lignin-based adhesive antioxidant conductive hydrogel as well as preparation method and application thereof

The invention discloses low-molecular-weight lignin-based adhesive antioxidant conductive hydrogel as well as a preparation method and application thereof, and belongs to the technical field of bio-based functional hydrogel. The gallic acid modified lignin with low molecular weight and increased phenolic hydroxyl group content is prepared by adding the gallic acid in the process of pretreating and separating the lignin. Dissolving the obtained gallic acid modified lignin and acrylamide in a DMSO/aqueous solution, adding an initiator, a cross-linking agent and a two-dimensional conductive material, and preparing the adhesive antioxidant conductive hydrogel under the condition of heating or ultraviolet irradiation. The low molecular weight and DMSO are utilized to facilitate diffusion and dispersion of lignin in the hydrogel, phenolic hydroxyl groups added in the modified lignin can endow the hydrogel with adhesion and oxidation resistance at the same time, the oxidation resistance of the ...

Double-component soybean meal-based adhesive for fiberboards and application thereof

The invention relates to a double-component bean meal-based adhesive for fiberboards and application thereof. The adhesive comprises the following components in parts by mass: 20-30 parts of soybean meal powder and 30-100 parts of composite modifying solution, wherein the composite modifying solution is at least one of urea, amide polymer, maleic anhydride and polyethyleneimine. With the double-component bean meal-based adhesive for fiberboards and the application thereof, the problems of large viscosity and difficult spraying of the single-component soybean adhesive are solved; the double-component soybean meal-based adhesive is easily sprayed and applied by adjusting the ratio of the dispersant of the composite modifying solution to fit for the existing industrialization requirements; the storage period of the soybean protein adhesive is improved; the storage period of the adhesive is greatly improved due to the double-component combination mode of the soybean meal-based adhesive, and ...

Preparation method for thermoplastic elastomer

The invention provides a preparation method for a thermoplastic elastomer. The preparation method comprises the following steps: (1) dissolving cellulose into an ionic liquid, adding 2-bromoisobutyryl bromide, and synthetising a cellulose base macro-initiator through an ice-water bath method; (2) adding the initiator into a reaction bottle, then adding a catalyst, ligands, rosin-based monosome, fatty acid monosome and an organic solvent in sequence, stirring for dissolving completely, removing the oxygen from the mixed solution through the cyclic processes of freezing, vacuum-pumping and nitrogen charging for three times, reacting for 1-24 hours under thea temperature of 50-110 DEG C, then conducting precipitation on the polymeride in methanol, filtering and drying, so that the thermoplastic elastomer is obtained. The glass transition temperature (Tg is between minus 100 DEG C and 100 DEG C) of the thermoplastic elastomer can be adjusted through the monosome charging rate, and the test ...

Software menu updating method and device

The invention discloses a software menu updating method and a software menu updating device, which belong to the technical field of communication. The embodiment of the invention comprises a state query module and an updating module. The method comprises the following steps of: querying a remote server by using a client, judging whether a menu is required to be updated or not, and downloading a menu updating configuration file if the menu is required to be updated; and updating the menu of software according to menu items and updating rules in the menu updating configuration file. The embodiment of the invention can independently realize menu upgrading without dependence on software version upgrading so as to meet the requirements of high software function updating speed and high menu updating frequency without frequently performing the software version upgrading. The embodiment of the invention can improve the flexibility of a system on the premise of not reducing the sense of experience ...

Full-bio-based tough polyester hot melt adhesive and preparation method thereof

The invention discloses a full-bio-based tough polyester hot melt adhesive and a preparation method thereof. The full-bio-based tough polyester hot melt adhesive is composed of a 2, 5-butanediol furandicarboxylate hard segment and a hydrogenated dimer acid butanediol ester soft segment, the hot melt adhesive disclosed by the invention shows excellent bonding performance on a stainless steel base material, and has wide bonding applicability to glass, plastic, wood and the like; the polyester hot melt adhesive has excellent high-temperature resistance and low-temperature resistance, and can still keep the bonding strength of 10.6 MPa even at the temperature of 70 DEG C below zero; the polyester hot melt adhesive has excellent solvent resistance, and the bonding strength retention rate of the polyester hot melt adhesive is higher than 80% after the polyester hot melt adhesive is soaked in various polar solvents for 24 hours; the copolyester can realize chemical cyclic degradation and regeneration ...

Preparation of cellulose solution

The invention discloses a method for preparing a high-concentration cellulose non-derivatization solution, wherein, the method has few steps in the preparation process, and is simple, easy to operate, green, environment-friendly and quick. The method is realized by the following technical proposal: firstly, 2 to 20 percent of cellulose (w/v), 4 to 10 percent of lithium chloride (w/v) and dimethylacetamide are subjected to ultrasonic treatment for 5 to 20 minutes with a frequency of between 20 and 25KHz and a power of between 400 and 800W, are evenly stirred at room temperature, then are frozen for 3 to 5 hours at a temperature of between 6 and 20 DEG C below zero, and a cellulose solution which can steadily exist at room temperature is obtained. The method is particularly suitable for natural cellulose with a molecular weight lower than 5x10<4>. In the method, the cellulose does not form new derivatives after the ultrasonic treatment and refrigerating treatment. The method provides abetter ...

Fire flood eclectic ignition method

The invention relates to a fire flood eclectic ignition method. An ignition device adopted by the fire flood eclectic ignition method comprises a steam injection pipe column and an ignition system, wherein the steam injection pipe column comprises a flare opening, a check valve, a bracket, an oil pipe and a wellhead device from top to bottom; the electric ignition system comprises a ground part and an underground part, wherein the ground part comprises an intermediate frequency power supply control cabinet, a loop cable, a cable conductor and a cable sealer, and the underground part comprises a conductor, an igniter, an insulated centralizer, a screen pipe, the cable conductor, an insulated isolation wire connector and the cable conductor from bottom to top. The fire flood eclectic ignition method is easy to operate, the ignition device has high maneuverability, repeatable use, controllable temperature and uniform heating temperature, and fire flood eclectic ignition can obtain good effect ...

Elastic network bandwidth service system

The present invention discloses an elastic network bandwidth service system based on cloud. The elastic network bandwidth service system supports the internet protocol IPV6 addresses and IPV4 addresses, supports the separated usage of the IP addresses and the elastic calculating units, and comprises a man-machine interface management system, an integrated DNS domain name service on-line system capable of being accessed by any network browser, an elastic load balance service system and a content acceleration network service system. The elastic network bandwidth service system totally supports the elastic network bandwidth, the elastic calculation and the elastic storage services, and possesses a wide market application prospect.

Method for preparing flame-retardant toughening polyurethane semi-prepolymer for phenolic foam

The invention discloses a method for preparing a flame-retardant toughening polyurethane semi-prepolymer for phenolic foam. The flame-retardant toughening polyurethane semi-prepolymer is prepared by the following steps: carrying out a Mannich reaction among diethanol amine, aldehyde compound and phosphite ester so as to prepare flame-retardant dihydric alcohol; carrying out an esterification reaction between the flame-retardant dihydric alcohol and isocyanate in an inert organic solvent in the presence of a catalyst (tertiary amine or an organic metal catalyst) in a nitrogen atmosphere to obtain terminated isocyanate polyurethane; carrying out an esterification reaction between the terminated isocyanate polyurethane and polymerized dihydric alcohol in the inert organic solvent in the presence of a catalyst (tertiary amine or an organic metal catalyst) in a nitrogen atmosphere; and performing reduced-pressure distillation to remove the inert organic solvent, thus obtaining the flame-retardant ...

Method for synthesizing rosin or rosin derivatives allyl ester

The invention discloses a method for synthesizing rosin or allyl ester which is rosin derivative, which comprises following steps: dissolving one of the rosin or the rosin derivative in aprotic solvent, adding acylate-chloridized agent, heating to enable reaction temperature to be in 0-85 DEG C, reacting for 0.5-5 hours, acylate-chlorizating carboxy group in the rosin or the rosin derivative, adding acid binding agent, polymerization inhibitor and allyl alcohol into the reaction product of the first step, reacting under 10-80 DEG C for 2-5 hours, removing the aprotic solvent, and obtaining the rosin or the rosin derivative, namely, allyl ester, wherein the using amount of the acid binding agent is 100-150% of the molar weight of carboxy group in the rosin or the rosin derivative and the using amount of the polymerization inhibitor is 1% of the allyl alcohol. Synthetical rosin or rosin derivative, namely, allyl ester, can generate radical polymerization and can be applied in the fields of ...

Image two-dimensional reversible information hiding method and system based on double sorting

The invention provides an image two-dimensional reversible information hiding method and system based on double sorting, and relates to the technical field of communication encryption, and the method comprises the steps: obtaining an original carrier JPEG image, and decoding the image to obtain a quantized DCT coefficient; selecting an embedded image block according to a global sorting method in double-layer sorting, and determining an information embedding sequence; calculating a gradient direction of the target block by using a local sorting method, and calculating a predicted value of the target block by using the gradient direction; selecting an embedding coefficient, selecting a prediction error coefficient point to embed secret information through coefficient preprocessing and an embedding algorithm, performing entropy coding on a secret-carrying DCT coefficient, and generating a JPEG image of secret-carrying information; when secret data is extracted, the extraction of secret information ...

Environment-friendly shale inhibitor as well as preparation method and application thereof

The invention provides an environment-friendly shale inhibitor and a preparation method thereof. The preparation method specifically comprises the following steps: S1, preparing cotton straw powder, adding an alkaline solution, heating in a water bath, filtering, adjusting the pH value of slurry to 4-5, adding ethanol for reaction, filtering again, and collecting filtrate; s2, under a protective atmosphere and a vacuum condition, mixing [EM < iM >] CH3COO ionic liquid with the filtrate, stirring, heating, and carrying out suction filtration to obtain filter residues which are crude lignin; s3, extracting by taking tetrahydrofuran as a solvent to obtain refined lignin; and S4, dissolving the refined lignin in water, adding a p-benzenesulfonic acid solution, heating in a water bath, dropwise adding a 2, 3-epoxypropyltrimethylammonium chloride solution, carrying out a heat preservation reaction, after the reaction is finished, carrying out centrifugal separation, taking supernate, and carrying ...

Method for manufacturing E0 level wood veneer

The invention provides a preparation method of plywood of E0 grade. The urea formaldehyde resin adhesive has an advantage of simple preparation technology, good reproducibility, lower cost and long store time. By using the urea formaldehyde resin adhesive, the plywood/three-ply board/overlaying panel/multilayer board accord with the requirements of plywood of E0 in terms of the bonding strength and the formaldehyde emission. The method in the invention has the advantages that: the preparation of the urea formaldehyde resin adopts the alkali-acid-alkali traditional craft; the urea and the melamine are added in three times; the urea is added in three times which adjusts the quality of the resin molecule; especially, the urea, which is added in the second time, not only degrades and resets the large molecules but also decreases the content of the ether linkage and reduces the release of the formaldehyde; during the composite process, the pH value in the condensation polymerization is rigidly ...

Process for preparing cellulose acrylate composited high molecular degradable material

Preparation method of high solid content expandable melamine modified urea resin

The invention discloses a preparation method of high solid content expandable melamine modified urea resin. The preparation method is as follows: a non-dehydration preparation process is adopted, paraformaldehyde is depolymerized under the alkaline condition to obtain high concentration formaldehyde solution, and the high concentration formaldehyde solution reacts with urea and melamine to directly prepare the high solid content expandable melamine modified urea resin. The solid content of the prepared urea resin is 70%-80%, the viscosity is 800-1200Mpa and the content of free formaldehyde is0.1%-0.25%. The apparent density of the melamine modified urea resin foam material obtained through foaming is up to 0.03-0.05g/cm<3>, the oxygen index is 50%-70%, the foam material can meet the requirements of the new building material with light weight and fire resistance; and the invention provides a new way for the development and utilization of the fire resistant and environmentally friendly urea ...

Inductor assembly heat dissipation device, air conditioner outdoor unit and air conditioner

The invention provides an inductor assembly heat dissipation device, an air conditioner outdoor unit and an air conditioner, relates to the technical field of air conditioners, and solves the technical problem that in the prior art, an inductor installation box of an inductor assembly is installed in a manner of being attached to a compressor cavity, although the bearing pressure of an electric appliance box mainboard is reduced, the heat dissipation effect of the inductor assembly is poor. The device comprises a device body, the device body is installed on a partition plate between an air conditioner compressor cavity and a draught fan cavity, a heat dissipation air channel is formed in the device body, and when a draught fan in the draught fan cavity acts, airflow can flow to the draught fan through the heat dissipation air channel so as to be used for cooling an inductance assembly placed in the device body. According to the invention, heat generated by the inductor assembly is taken ...

Manual forcible entry tool

The invention discloses a manual forcible entry tool which comprises a handle assembly and a prying head, and the handle assembly comprises an inner rod and an outer pipe arranged on the periphery of the inner rod in a sleeving mode; the inner rod comprises a first end in the axial direction of the inner rod, and the outer pipe can be close to or away from the first end in the axial direction of the inner rod. The prying head is pivoted with the first end, and the prying head can rotate around the first end to be close to or away from the inner rod. According to the design, the telescopic and folding functions of the manual forcible entry tool can be achieved, and carrying and storage are facilitated.

Alcoholysis method of ethylene-vinyl acetate copolymer

The invention provides a simple and feasible normal pressure alcoholysis method of an ethylene-vinyl acetate copolymer. The introduction of solvent steam to carry out an alcoholysis reaction improves the alcoholysis degree, and EVOH with the alcoholysis degree of above 99% is obtained after the alcoholysis of the ethylene-vinyl acetate copolymer within 1-3h, so the alcoholysis efficiency is improved; and the prepared EVOH has good quality and white color.

Picture processing method and apparatus for instant communication tool

A method and an apparatus for processing a picture of an instant messenger are disclosed, which belong to the field of computers comprising: obtaining related information of an edit region, wherein the related information comprises at least a horizontal coordinate range and a vertical coordinate range; obtaining and recording position information of an initial cursor when a start notice is received, wherein the position information comprises at least coordinates; and obtaining position information of a current cursor in real time, generating a line segment according to the position information of the current cursor, the recorded position information and the related information, and updating the recorded position information into the position information of the current cursor. The apparatus comprises a first obtaining module, a second obtaining module and a generation module. The present disclosure can draw a line according to the movement path of the cursor.

High-liquidity polylactic acid-based wood plastic injection molding composite material and preparation method thereof

The invention discloses a high-liquidity polylactic acid-based wood plastic injection molding composite material and a preparation method thereof. The high-liquidity polylactic acid-based wood plastic injection molding composite material is characterized by comprising the following components in parts by weight: 10-60 parts of poplar fibers, 30-80 parts of polylactic acid, 5-10 parts of polycaprolactone, 0.5-2 parts of a lubricant and 5-20 parts of a bulking agent, wherein the bulking agent is a grafted copolymer obtained by microwave-radiation-induced polymerization of polylactic acid and glycidyl methacrylate. The preparation method of the high-liquidity polylactic acid-based wood plastic injection molding composite material comprises the following process steps: (1), preparing raw materials; (2), preparing the bulking agent; and (3), preparing composite material particles. The preparation method has the advantages of simple and convenient operation, no toxicity and environment friendliness ...

Phenolated lignin modified expandable resorcinol-phenol-formaldehyde resin and preparation method thereof

The invention discloses modified expandable resorcinol-phenol-formaldehyde resin and a preparation method thereof. The preparation method comprises the following steps: adding lignin, phenol and a basic catalyst into a reactor for phenolate and degradation of lignin; adding a formaldehyde solution for condensation reaction with phenolated lignin and phenol; adding paraformaldehyde for further condensation reaction with the basic catalyst; adding resorcinol for condensation polymerization, so as to obtain the phenolated lignin modified expandable resorcinol-phenol-formaldehyde resin. As phenolate and degradation of lignin are carried out in advance, the phenolic hydroxyl group content of lignin is improved. Moreover, high-activity resorcinol is added, so that the prepared lignin-based phenolic resin is high in activity; a foam material made of the modified resin through solidification is high in mechanical properties, and low in scaling off rate. The compression strength of lignin modified ...

Preparation method of phenol-urea-formaldehyde resin adhesive for E0-grade outdoor plywood

Process of preparing ester from rosin and acrylate

Process for preparing cellulose long-chain fatty acid ester

Process for preparing cellulose long-chain fatty acid ester

The invention discloses a method which can rapidly prepare a cellulosic long-chain fatty acid ester, and the method has the advantages of few steps of preparation, simple and easy operation and environmental protection. The technical scheme has two steps; firstly, cellulose accouting for two to four percent of the mass of dimethylacetamide and lithium chloride accounting for six to nine percent of the mass of the dimethylacetamide are added into the dimethylacetamide and undergo ultrasound with the frequency of 20 to 25 KHz and the power of 400 to 800 w for five to thirteen minutes, and after three to five hours of stirring under the environment of nitrogen gas, cellulosic ion solution A is prepared; secondly, according to the molar ratio of 1:2:2:0 to 1:6:6:1, cellulose, long-chain fatty acid, co-reagent and / or catalyst are added into the solution A, which is irradiated by a microwave reaction instrument with power of 300 to 400 w for sixty to one hundred seconds and is stired under ...

Rosin-based ATRP initiator and preparation method and applications thereof

The invention discloses a rosin-based ATRP initiator and a preparation method and applications thereof. The rosin-based ATRP initiator has a structure as shown in the specification, wherein R refers to rosin or rosin derivatives, and n is equal to 1, 2 or 3. The esterification reaction after acrylating chlorination is adopted, so that the esterification reaction and the addition reaction can be synchronously carried out, and the synthesis efficiency of the rosin-based derivatives can be improved; the rosin-based ATRP initiator is clearly distinct from the currently reported ATRP in structure, the final polymer has properties of rosin due to the introduction of rosin, and the additional values of rosin materials can be increased, and the rosin-based ATRP initiator has good application prospects; the preparation method of the rosin-based ATRP initiator is simple, the reaction conditions are mild, other monomers can be initiated to carry out ATRP polymerization reaction, and good reaction ...

Growing data centre and method for constructing growing data center

The invention discloses a growing data center and a method for constructing the growing data center. The growing data center comprises a UPS module, a cloud host module, a cloud database module, a storage module, an air conditioning refrigeration module and an energy efficiency monitoring system, wherein the UPS module is electrically connected with the cloud host module, the cloud database module and the storage module and is used for providing a working power supply for the cloud host module, the cloud database module and the storage module, the air conditioning refrigeration module is used for refrigerating the cloud host module, the cloud database module and the storage module, and the energy efficiency monitoring system is connected with the UPS module, the air conditioning refrigeration module, the cloud host module, the cloud database module and the storage module and is used for conducting energy efficiency monitoring of the data center. The growing data center and the method for ...

Detection method of paper making sludge deodorization effect

The invention discloses a method for detecting deodorizing effect of paper-making sludge. The concrete steps of the method are as follows: deodorizing wet sludge is added with an H2O2 or NaClO treatment solution with a concentration in mass percentage of between 0.10 to 1.00 percent, and the concentration of the NaClO treatment solution is the effective chlorine concentration; the mixing ratio of the wet sludge tothe treatment solution is 0.5g/ml, and after the wet sludge and the treatment solution are mixed with even stirring and the wet sludge is immersed in the treatment solution for 10 to 12 hours. The method of the invention has the advantages of higher removal rate and reliability of deodorizing the paper-making sludge, treating odors with large air flow and high concentration, removing mixed odorsby the multi-stage sharing washing, along with small floor areas, low investment and simple and convenient operation.

Resource management and operation system

The present invention discloses a resource management and operation system used for the cloud computing-infrastructure, namely the services. The resource management and operation system comprises the grade information and life cycle of resources, and also comprises the configuration and configuration change conditions of the resources. A tool of the resource management and operation system collects, corrects, gathers and manages the configuration and maintenance information of the resources used by the cloud computing products, and comprises a mechanism for managing the software resources, hardware devices, virtual resources and network resources. The resource management and operation system of the present invention is suitable for the flexible management and the client data flow management of the cloud computing resources, and possesses a wide market application prospect.

Artificial board produced from papermaking sludge and method for producing the same as well as deodorizing method

The invention discloses an artificial board manufactured from paper-making mud as well as a manufacture method and a deodorization method thereof. The artificial board manufactured from paper-making mud includes at least one basic layer and reinforced layers at the two sides of the basic layer; the basic layer is the mixture of the paper-making mud and phenolic resin glue; the reinforced layers are the mixture of fiberglass cloth and a resin acceptor and the phenolic resin glue. The manufacture method for the artificial board includes: drying the paper-making mud to a absolute dry state; grinding the mud into fine particles with a water content rate of 3 to 5 percent; using a filter screen to filter the impurities of the phenolic resin glue; uniformly mixing the phenolic resin glue into the fine particles of the mud to form the material of the basic layer; drying the fiberglass cloth for three hours under the temperature of 200 DEG C to remove the olefin on the surface; printing the resin ...

Junction temperature calculation method, operational circuit and power switch

The invention discloses a junction temperature calculation method, an operational circuit and a power switch. The method comprises the following steps: calculating the instantaneous heating power, the turn-on instantaneous loss power and the turn-off instantaneous loss power of an IGBT switch tube, and the instantaneous heating power and the reverse recovery loss power of a diode; calculating the heating power of the IGBT switch tube according to the instantaneous heating power, the turn-on instantaneous loss power and the turn-off instantaneous loss power of the IGBT switch tube, and calculating the heating power of the diode according to the instantaneous heating power and the reverse recovery loss power of the diode; and calculating the junction temperature of the IGBT switch tube and the diode according to the heating power of the IGBT switch tube and the heating power of the diode. According to the invention, the junction temperature can be directly calculated through the heating power ...

Manual hydraulic control structure and manual hydraulic equipment

The invention discloses a manual hydraulic control structure and manual hydraulic equipment, the manual hydraulic control structure comprises an oil passing handle, a driving assembly and a rotating piece, the driving assembly is connected with the oil passing handle and comprises a reversing valve rod, a first one-way valve, a second one-way valve and a movable piece between the first one-way valve and the second one-way valve, a first oil supply branch and a second oil supply branch are arranged on the two sides of the reversing valve rod, the first oil supply branch is communicated with an oil passing handle and a first one-way valve, the second oil supply branch is communicated with the oil passing handle and a second one-way valve, and the reversing valve rod is provided with an oil return branch and communicated with the oil passing handle. The rotating piece is connected to the oil passing handle in a sleeving mode and corresponds to the two ends of the reversing valve rod, after ...

Method for preparing melamine formaldehyde molding compound

The invention discloses a method for preparing melamine formaldehyde molding compound, comprising adjusting the pH value of 100 parts by mass of 37% wt formaldehyde by 30% wt of sodium hydroxide to 6-10; heating; adding 30-100 parts by mass of the melamine and the modifying agent, keeping temperature elevation to 80-95 DEG C, reacting for 1-3 hours, cooling and feeding the formaldehyde trapping agent, adding triethanolamine when the temperature is 60 DEG C, then vacuum dewatering and discharging for standby, kneading the resin and the reinforcing material for 15-60 min, obtaining the moist material, putting the moist material at 50-90 DEG C, and 0.01-0.3 MPa vacuum degree for vacuum drying 6-9 hours, obtaining the dry material, smashing the dry material to 40 meshes by a smasher, adding 2-10 parts by mass of inorganic filler, 0.1-2 parts by mass of mold releasing agent in a ball mill for milling 10-30 hours, obtaining the melamine formaldehyde molding compound. The melamine formaldehyde ...

PICTURE PROCESSING METHOD AND APPARATUS FOR INSTANT COMMUNICATION TOOL

A method and an apparatus for processing a picture of an instant messenger are disclosed, which belong to the field of computers comprising: obtaining related information of an edit region, wherein the related information comprises at least a horizontal coordinate range and a vertical coordinate range; obtaining and recording position information of an initial cursor when a start notice is received, wherein the position information comprises at least coordinates; and obtaining position information of a current cursor in real time, generating a line segment according to the position information of the current cursor, the recorded position information and the related information, and updating the recorded position information into the position information of the current cursor. The apparatus comprises a first obtaining module, a second obtaining module and a generation module. The present disclosure can draw a line according to the movement path of the cursor. 1. A method for processing a picture for an instant messenger , wherein the method comprising the following steps of:obtaining related information of an edit area captured by the instant messenger, wherein the related information comprises at least an abscissa range and an ordinate range;obtaining and recording position information of a cursor in real time after a start notification is received and before an end notification is received; andgenerating a line segment according to position information of current cursor, the recorded position information of a previous cursor and the related information of the edit area.2. The method of claim 1 , wherein the line segment is generated within the edit area between the current cursor and the previous cursor according to the position information of the current cursor claim 1 , the recorded position information of the previous cursor and the related information of the edit area.3. The method of claim 2 , wherein if it is determined that both the current cursor and the ...

Customer relation management system

The present invention discloses a cloud computing-infrastructure, namely a service customer relation management system (1000). The customer relation management system comprises a customer-oriented data center zero contact-type service mechanism, so that customers can remotely obtain the cloud computing resources of computing, storage and network bandwidth without needing to contact a server, a switch and a firewall physical device, and to go to a cloud computing data center. The customer relation management system of the present invention is suitable for the flexible management and customer data flow management of the cloud computing resources, and possesses a wide market application prospect.

Color image watermarking method based on quaternion index matrix

The invention discloses a color image watermarking method based on a quaternion index matrix. The color image watermarking method can effectively resist the desynchronizing attack. The method comprises the following steps of calculating the quaternion index matrix of an original color image, reconstructing the original color image according to the quaternion index matrix, selecting a stable low-order quaternion index matrix, adopting a quantization modulation strategy to embed watermarking information into a quaternion index matrix amplitude, reconstructing the color image into which the watermarking information is embedded according to the selected quaternion index matrix and carrying out the margin calculation on the reconstructed image to superpose the obtained differential value into the original image.

Sawtooth oak cup/polylactic acid composite material and preparation method thereof

The invention relates to a sawtooth oak cup/polylactic acid composite material and a preparation method thereof. The composite material is prepared from sawtooth oak cup, polylactic acid, plasticizing agents and compatibilizers. The composite material comprises the following ingredients in percentage by weight: 10 to 90 parts of polylactic acid, 20 to 80 parts of sawtooth oak cup, 0 to 20 parts of compatibilizers, 0 to 2 parts of plasticizing agents, 0 to 5 parts of antioxidizers and 0 to 5 parts of lubricating agents. The sawtooth oak cup/polylactic acid composite material can be widely used for manufacturing disposable plastic products such as environment protection tableware, trays, fruit trays, package containers, packing object foaming filling materials, electric appliance cases, forestry landscape seedling containers and the like, and belongs to a composite material with the actual application value.

Preparation method of chitosan quaternary ammonium salt-silver nanoparticle antibacterial cotton fibers

The invention provides a preparation method of chitosan quaternary ammonium salt-silver nanoparticle antibacterial cotton fibers. The chitosan quaternary ammonium salt-silver nanoparticle antibacterial cotton fibers are prepared through the following steps: (1), preparing chitosan quaternary ammonium salt-silver nanoparticles; (2), preparing chitosan quaternary ammonium salt-silver nanoparticle antibacterial cotton fibers: treating degreased cotton fibers through a silane coupling agent, drying, soaking the degreased cotton fibers into a chitosan quaternary ammonium salt-silver nanoparticle solution, reacting for 10-15 h at 40-60 DEG C, washing with water, and drying, so as to obtain the chitosan quaternary ammonium salt-silver nanoparticle composite cotton fibers. The chitosan quaternary ammonium salt-silver nanoparticle antibacterial cotton fibers have relatively high antibacterial activity and can be applied to the fields of medical care, antibacterial fabrics and the like.

Preparation method for phenolic foam sandwiched composite board

The invention provides a preparation method for a phenolic foam sandwiched composite board. The preparation method comprises preparation of a phenolic resin adhesive and bonding of the phenolic foam sandwiched composite board, wherein the top and bottom of a phenolic foam layer are provided with wooden sheet materials; and sandwiched layer foams and the upper and lower layers of wooden sheet materials form an integrated structure by the phenolic resin adhesive. The phenolic foam sandwiched composite board provided by the invention is prepared by adopting a cold pressing method, and the process is simple, convenient and feasible; and the prepared sandwiched composite board has the characteristics of good heat preservation, light weight, high strength, sound insulation, noise reduction, and the like.

Method for synthesizing rosin or rosin derivatives methacrylic ester

The invention discloses a synthetic method of colophony or vinsol methyl allyl ester. The synthetic method comprises the following steps: the colophony or one kind of the vinsol is dissolved in aprotic solvent, is added with an acyl chlorination reagent and is heated to ensure the temperature to be 0 to 85 DEG C, the reaction time is 0.5 to 5 hours, acyl chlorination is performed to the carboxyl in the colophony or the vinsol, an acid-binding agent, a polymerization retarder and methally alcohol are added into the reaction product in the first step, and are reacted for 2 to 5 hours under 10 to 80 DEG C, the aprotic solvent is removed, the colophony or the vinsol methyl allyl ester can be acquired, the dosage of the acid-binding agent is 100 to 500 percent of the molar mass of the carboxyl in the colophony or the vinsol, and the dosage of the polymerization retarder is one thousandth of the mass of the methally alcohol. The synthetic colophony (vinsol) methyl allyl ester can perform free ...

Elastic storage service system

The invention discloses an elastic storage service system based on cloud. The elastic storage service system comprises a cloud computing server providing elastic storage services, a hardware terminal provided with a network browser, a device providing network access for the hardware terminal, and a network information transmission device. The cloud-based elastic storage service system further comprises a software system, and the software system is used for receiving requests submitted through the browser and the device providing network access by the hardware terminal through the network information transmission device. The software system comprises a man-machine management interface (101) which any network browser can have access to, a storage pool resource management module (102), a storage pool monitoring module (103) and a snapshot backup storage pool system (104). By means of the man-machine management interface (101), the storage pool resource management module (102), the storage ...

Acrylic acid or methylpropenoic acid rosin derivative ester synthesis method

The invention discloses a method for synthesizing acrylic acid or methacrylic acid vinsol ester, comprising the following steps: one of vinsols containing hydroxide radical functional groups, acid-binding agent and addition type polymerization inhibitor are dissolved in non-proton transfer solvent, methacrylic chloride or acryloyl chloride is added into the mixed solution, the reaction temperature is 0-85 DEG C, and the reaction time is 0.5-10h; then, the precipitate is filtered, and vacuum extraction is carried out on the obtained filter liquor to remove solvent, so that acrylic acid or methacrylic acid vinsol ester can be obtained; the mass of the non-proton transfer solvent is 100-500% of that of the vinsol; the molal weight of the methacrylic chloride or the acryloyl chloride is 100-500% of that of hydroxide radical of the vinsol containing hydroxide radical functional groups; the dosage of the acid-binding agent is 100-500% of the molal weight of the hydroxide radical of the vinsol ...

Preparation method for rosinyl composite nano polymer micro-sphere

The invention relates to a preparation method for a rosinyl composite nano polymer micro-sphere. The preparation method comprises the following steps: by taking a polymerizable rosinyl monomer as a stabilizing agent, carrying out an in-situ polymerization reaction with an allyl monomer under the common effect of an emulsifying agent to prepare the rosinyl composite nano polymer micro-sphere. The preparation method comprises the following steps: step 1, by taking the allyl monomer as a solvent, dissolving the polymerizable rosinyl monomer to prepare a polymerizable rosinyl monomer composite solution; step 2, adding the polymerizable rosinyl monomer composite solution into a water solution containing the stabilizing agent and agitating and dispersing; step 3, homogenizing and dispersing at a high speed to prepare a rosinyl composite monomer nano polymer micro-sphere; and step 4, adding an initiator and carrying out in-situ polymerization to prepare the novel rosinyl composite nano micro-sphere ...

Lignin-based starlike thermoplastic elastomer and preparation method thereof

The invention relates to a lignin-based starlike thermoplastic elastomer and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out reaction on lignin and 2-bromoisobutyryl bromide to synthesize a lignin ATRP (atom transfer radical polymerization) macromolecular initiator; and (2) adding a hard monomer, a soft monomer, the lignin ATRP macromolecular initiator, a ligand and a good reaction solvent into a reaction bottle, fully stirring for dissolving, removing oxygen in the mixed solution by virtue of three circulating processes of freezing, vacuumizing and nitrogenization, adding a catalyst for reaction at 55-110 DEG C for 4-48 hours, filtering the collected precipitate by using a mixed liquid or methanol/water as a precipitator and drying to obtain the lignin-based starlike polymer with ultraviolet absorptivity and property of the thermoplastic elastomer. The lignin-based starlike polymer consisting of different monomers can be obtained by ...

Portrait self-service ticket selling and taking machine with low energy consumption

The utility model discloses a portrait self-service ticket selling and taking machine with low energy consumption. The multimedia assembly comprises a power panel and a mainboard. The input end of thepower panel is connected with the mains supply. The output end is connected with a power supply terminal of the mainboard; wherein the main board is respectively connected with the printing host, thetouch screen control card, the liquid crystal display, the backlight constant-current board, the loudspeaker, the portrait acquisition camera and the wireless communication module, the main switch (1) is arranged on a mains supply main circuit, and the light touch starting switch (2) is connected with an enabling end of the power supply board. On the premise of not frequently opening and closingthe main switch and effectively protecting the service life of the printing host, the power consumption of equipment is effectively reduced. According to the utility model, a portrait acquisition function ...

Geotechnical engineering geological data management system

The invention relates to the technical field of geological data management, and discloses a geotechnical engineering geological data management system, which can avoid increasing the operation load of a server side when a plurality of clients access the server side at the same time, and can also timely clean some useless data in all engineering investigation data in a database of the server side, thereby improving the efficiency of data processing. The situation that the running speed of a server is affected due to the fact that data stored in a database of a server side is too large is avoided, and the management system can visually manage and display geological data through the database technology and the GIS technology by establishing an effective engineering geological data management system based on spatial geographic information. And the utilization value and utilization rate of geological data are improved. Retrieval, summarization, statistics, viewing, browsing, digital maps, charts ...

Multispectral image gray feature watermarking method based on sixteen-element fast accurate moment

The invention discloses a multi-spectral image gray feature watermarking method based on a sixteen-element fast precise moment, which relates to the field of image processing and is characterized by comprising the following steps: S1, constructing a gray feature watermark; constructing a gray feature watermark by calculating the FASRHFMs of the original multispectral image; and S11, quickly and accurately calculating the FASRHFMs of the original multispectral image, and calculating the FASRHFMs with the maximum moment order of the original multispectral image in the inscribed circle through a quick and accurate calculation method. The technical problem to be solved by the invention is to provide the multi-spectral image gray feature watermarking method based on the sixteen-element fast accurate moment, so that the verification of the multi-spectral image gray feature watermarking is facilitated.

Method for preparing low-mobility polylactic-acid-base plasticizing wood-plastic composite material

The invention relates to a method for preparing a low-mobility polylactic-acid-base plasticizing wood-plastic composite material, which comprises the following steps: (1) graft modification of polylactic acid: evenly mixing 100 parts by mass of polylactic acid, 5-15 parts by mass of itaconic acid and 0.1-1 part by mass of free-radical initiator at high speed, pouring into a double screw extruder storage bin, extruding, cooling and granulating to obtain an itaconic acid grafted polylactic acid copolymer material; and (2) after previously evenly mixing poplar powder, polylactic acid, itaconic acid grafted polylactic acid copolymer and epoxy plasticizer, extruding with a double screw extruder at 150-210 DEG C at the rate of 200-300 rpm, cooling and granulating to obtain the composite material granules. The method simple to operate; and the prepared composite material plasticizer has the advantages of lower mobility and favorable mechanical properties.

Anonymous method and system for JPEG (Joint Photographic Experts Group) image

The invention relates to the technical field of image information hiding, and provides an anonymity method and system for a JPEG image, and the method comprises the steps: extracting a first noise residual error from an obtained to-be-processed JPEG image, carrying out the discrete cosine transform of the first noise residual error, and extracting an AC part of a transformed coefficient; for the to-be-processed JPEG picture, calculating a DCT coefficient after inverse quantization in the JPEG compression process; and according to an attenuation requirement of an image noise error, adaptively selecting an intensity parameter, making a difference between the inverse quantized DCT coefficient and an alternating current part of the first noise residual transform coefficient multiplied by the intensity parameter, and updating the DCT coefficient to obtain an anonymous image. A discrete cosine transform (DCT) coefficient and a JPEG compression process are combined, and noise residual information ...

Method for synthesizing rosin or rosin derivatives allyl ester

The invention discloses a method for synthesizing rosin or allyl ester which is rosin derivative, which comprises following steps: dissolving one of the rosin or the rosin derivative in aprotic solvent, adding acylate-chloridized agent, heating to enable reaction temperature to be in 0-85 DEG C, reacting for 0.5-5 hours, acylate-chlorizating carboxy group in the rosin or the rosin derivative, adding acid binding agent, polymerization inhibitor and allyl alcohol into the reaction product of the first step, reacting under 10-80 DEG C for 2-5 hours, removing the aprotic solvent, and obtaining the rosin or the rosin derivative, namely, allyl ester, wherein the using amount of the acid binding agent is 100-150% of the molar weight of carboxy group in the rosin or the rosin derivative and the using amount of the polymerization inhibitor is 1% of the allyl alcohol. Synthetical rosin or rosin derivative, namely, allyl ester, can generate radical polymerization and can be applied in the fields of ...

Silicon carbide ceramic product and non-mold casting method thereof

The invention discloses a silicon carbide ceramic product and a non-mold casting method thereof, and relates to the field of material preparation, and the non-mold casting method can be used for solving the problem that the ceramic product with high surface quality, uniform structure and complicated shapes cannot be prepared by an existing preparation process. According to the main technical scheme disclosed by the invention, the non-mold casting method of the silicon carbide ceramic product comprises the following steps: carrying out mixing and ball-milling on raw materials for preparing the silicon carbide ceramic product, so as to prepare a raw material slurry, wherein the raw materials for preparing the ceramic product comprise silicon carbide, carbon black, a dispersing agent, an organic monomer and water; adding an initiating system to the raw material slurry, and mixing evenly, so as to obtain a ceramic slurry; sequentially carrying out vacuum degassing treatment, injection molding ...

Service billing system of cloud computing platform

The invention relates to a service billing system of a cloud computing platform. The service billing system comprises a cloud computing virtual machine support device, a cloud computing elastic storage service support device, a cloud computing elastic computing support device, a cloud computing elastic network bandwidth support device and a cloud computing platform service billing software system, wherein the cloud computing platform service billing software system is used for monitoring, recording and counting using conditions of the cloud computing virtual machine support device, the cloud computing elastic storage service support device, the cloud computing elastic computing support device and the cloud computing elastic network bandwidth support device. The cloud computing platform service billing software system comprises a billing item management sub-system (101), an integral item management sub-system (102), a billing rule management sub-system (103), an integral rule management ...

Visible watermark removing method based on two-stage deep neural network

The invention discloses a visible watermark removing method based on a two-stage deep neural network, and relates to the technical field of digital watermarking, and the method comprises the following steps: S1, building a watermark positioning network, taking an image fusion algorithm as a main network architecture, setting four layers of encoders, and setting an input layer, a feature extraction layer and a feature fusion layer in each layer of encoder; s2, establishing a watermark removing and repairing network, taking ResNet as a main framework of the network, and adding a recursive calculation and attention module; the technical problem to be solved by the invention is to provide a visible watermark removal method based on a two-stage deep neural network, which not only realizes complete removal of watermark information on a visible watermark image, but also repairs the image after watermark removal, thereby recovering content loss caused by watermark removal to the image, and improving ...

Overcurrent protection circuit and electric equipment

The invention discloses an over-current protection circuit and electric equipment, the over-current protection circuit is applied to the electric equipment with an IGBT power switch, the over-current protection circuit comprises an over-current protection module, the first end of the over-current protection module is connected with the emitter of the IGBT power switch, the second end of the over-current protection module is connected with the grid of the IGBT power switch, and the first end of the over-current protection module is connected with the emitter of the IGBT power switch. The third end of the IGBT power switch is connected with an output terminal of a driving chip of the IGBT power switch; the overcurrent protection module is used for detecting current flowing through the IGBT power switch and controlling the grid electrode of the IGBT power switch to be disconnected with the driving chip when the current flowing through the IGBT power switch exceeds a preset threshold value.

Process for preparing cellulose derivatives containing double-bond lateral group

The invention discloses a process for preparing cellulose derivatives containing double-bond lateral group, which includes specific steps as follows: the first step includes performing activation treatment to cellulose, the second step includes utilizing an LiCl/DMAc solvent system and dissolving the cellulose into homogeneous solution at a certain temperature, the third step includes adding catalyst and polymerization inhibitor in a homogeneous system and simultaneously aerating nitrogen to protect, and the fourth step includes adding derivatization reagent, reacting for a certain time at a certain temperature and then adding water to centrifuge, collect, precipitate, wash and dry. The process selects the cellulose which is wide in source and low in price as raw materials to prepare the cellulose derivatives containing double-bond lateral group, and then has wide application prospect in preparation of gel, plastics, coatings and chiral stationary phases.

Wood fiber reinforced flame retardant foam composite plate and manufacturing method thereof

The invention relates to a wood fiber reinforced flame retardant foam composite plate and a preparation method thereof. The external layer of the composite plate is a wood panel, and the foam core plate in the internal layer is a wood fiber reinforced phenol formaldehyde foam material or a melamine modified formaldehyde foam material. The wood fiber is treated by a coupling agent. The invention further relates to a manufacturing method of the plate. The wood panel is adhered to the external layer panel of the foam core plate. The plate can be manufactured by performing lamination thermal composition on the materials by using an adhesive, and also can be manufactured by directly foaming between fixed dual-layer panels. The foam core plate uses wood fiber reinforced phenol formaldehyde foam or melamine modified formaldehyde foam material. The flame retardant performance can accord with the specified standard. The foam core plate is flame retardant and small in smoke amount, generates no harmful ...

Face forgery detection method of convolutional adversarial network based on attention mechanism

The invention discloses a face forgery detection method of a convolutional adversarial network based on an attention mechanism, and relates to the field of face forgery detection, and the method is characterized in that the method comprises the following steps: S1, obtaining a face video; s2, video key frame extraction; s3, extracting a face image from the key frame; and S4, inputting the face image into a pre-trained network, and outputting authenticity classification. The technical problem to be solved by the invention is to provide a face forgery detection method of a convolutional adversarial network based on an attention mechanism, which only extracts an I frame in a video by adopting an ffmpeg multimedia processing tool, and extracts a face picture in the I frame. The attention mechanism and the domain adversarial network are applied to the face detection technology, so that the purpose of improving the accuracy and generalization performance of detection is achieved.

Fine emulsion polymerization method of polyurethane acrylic ester compound emulsion

A process for polymerizing the fine polyurethane-acrylate emulsion includes such steps as dewatering polyol, acrylate and chain enlarging agent, introducing N2 to agitated reactor, adding polyol and catalyst, stirring while dropping polyisocyanate, heating, adding chain enlarging agent and acrylate, adding hydroxyalkyl acrylate, cooling, adding trigger, adding deionized water containing surfactant while stirring, dispersing, adding N2, heating, reaction and cooling.

Preparation method of high-solid-content melamino-formaldehyde-base resin

The invention discloses a preparation method of a high-solid-content melamino-formaldehyde-base resin. By using ethanol as a solvent, polyformaldehyde and melamine direct react by a method of replacing ethanol with micromolecule polyalcohol in vacuum to directly prepare the high-solid-content melamino-formaldehyde-base resin. The preparation method comprises the following steps: 1. by using ethanol as the solvent, depolymerizing and dissolving polyformaldehyde under alkaline conditions; 2. adding melamine, and reacting under alkaline conditions; 3. removing the ethanol in vacuum while adding micromolecule polyalcohol, thereby implementing solvent replacement; 4. regulating the solution system to an acidic state, and carrying out condensation and etherification; and 5. regulating the solution system to an alkaline state, and finishing the reaction. The resin can be used as a flame-retardant assistant for preparing a flame-retardant polyether glycol initiator and a polyurethane foamed material ...

Preparation of urea-melamine-formaldehyde resin adhesive for E0 floor

The invention discloses a method for preparing a urea-melamine-formaldehyde resin adhesive for an E0-level floor. In the first step, formaldehyde solution, melamine and urea are mixed, the pH value of the mixture is regulated, the temperature is raised to 80-95 DEG C, and the reaction lasts 40-60 minutes, wherein, the mol ratio between formaldehyde and the total amount of the urea and the melamine is 2.05-2.12 : 1; in the second step, the pH value is regulated to be 5.0-6.0, and the reaction is underway till the turbidity point; in the third step, the pH value is regulated to be 6.0-6.9, the urea and the melamine are added, and the mol ratio between the formaldehyde and the total amount of the urea and the melamine which are added in the first step and the second step is 1.48-1.74 : 1, and the reaction lasts 30-70 min at a temperature of 90 DEG C; in the fourth step, the pH value is regulated to be 7.5-9.0, the melamine is added, and the reaction lasts 20-80 min at a temperature of 80-90 ...

Preparation method of ENF-grade lignin-based wood adhesive

The invention belongs to the technical field of wood adhesive preparation, and particularly relates to a preparation method of an ENF-grade lignin-based wood adhesive, which comprises the following steps: mixing phenol, water, a first batch of alkaline solution, lignin and a first batch of formaldehyde, and carrying out polymerization reaction to obtain a first-stage reaction product; adding a second batch of formaldehyde into the first-stage reaction product, reacting for 20-30 minutes to obtain an intermediate reactant, then adding a second batch of alkaline solution, and carrying out polymerization reaction to obtain a second-stage reaction product; and adding a third batch of formaldehyde into the second-stage reaction product to react for 15-25 minutes, adding a third batch of alkaline solution, adding a formaldehyde trapping agent after polymerization to target viscosity, and cooling to 40-45 DEG C to obtain the ENF-grade lignin-based wood adhesive. The phenol is used as an active ...

Method of preparing alkali lignin modified phenolic resin

A method for preparing alkali lignin modified phenol-formaldehyde resin comprises the following steps: phenol, a first batch of formaldehyde solution, alkali lignin, metal oxide and dilution water are added into a reactor; a second batch of formaldehyde solution is added into the reactor; and a third batch of formaldehyde solution and a first batch of alkaline solution are added, formaldehyde trapping agent and a second batch of alkaline solution are added, and then material is discharged after cooling. The invention adopts the copolymerization technique to prepare an alkali lignin phenol formaldehyde adhesive, lignin and the phenol are added simultaneously, obtained hydroxymethylated lignin is reacted with hydroxymethyl phenol, a small part of the obtained hydroxymethylated lignin participates in the polycondensation of the hydroxymethyl phenol to form a main chain, and a large part of the obtained hydroxymethylated lignin forms branch chains through graft copolymerization, therefore, ...

Method for preparing hydroxymethylated stalk ethanol byproduct and composite wood adhesive

The invention discloses a method for preparing a hydroxymethylated stalk ethanol byproduct and a composite wood adhesive. The method comprises the following steps: preparing the hydroxymethylated stalk ethanol byproduct: adding water, a stalk ethanol byproduct and a formaldehyde solution into a reactor in parts by mass, adjusting the pH value by using alkali liquor, heating and stirring; adjusting the pH value of the mixed system in the reactor by using alkali liquor, and heating for reacting; adjusting the pH value of the mixed system in the reactor by using alkali liquor, cooling, adding a formaldehyde scavenger, reacting, cooling to room temperature and discharging; preparing the stalk ethanol byproduct composite wood adhesive, namely mixing the prepared hydroxymethylated stalk ethanol byproduct and urea resin or phenolic resin uniformly at room temperature to obtain the composite wood adhesive. The method disclosed by the invention can be used for achieving the purpose of recycling ...

Technology for fishing oil under pressure

The invention relates to a technology for fishing oil under pressure. According to the technical scheme, the technology comprises the following steps: 1, fixing a blowout preventer and a blowout prevention pipe on a flange at the bottom of a wellhead by installing the wellhead on site, connecting a gas receiving pipeline on a cover of an oil fishing well, and leading gas in the well into an oil conveying pipeline between an oil well and an oil production station through the gas receiving pipeline so as to reduce the gas pressure of the oil fishing well; 2, turning off the blowout preventer before fishing oil to prevent the high-pressure gas in the oil well from being communicated with the outside, and disassembling the gas receiving pipeline and the cover of the oil fishing well to enable the blowout prevention pipe to be communicated with the atmosphere to enable the pressure of the blowout prevention pipe reaches normal pressure. According to the technology, the purpose that under the ...

Preparation method of polyurethane prepolymer-toughened modified phenolic foam plastic

The invention relates to a preparation method of polyurethane-prepolymer-toughened modified phenolic foam plastic, which comprises the following steps: vacuumizing and dehydrating polyalcohol, dropwisely adding the polyalcohol into isocyanate to react in a nitrogen atmosphere, and adding a chain extender to react; regulating an alkaline A-stage phenol formaldehyde resin with acid according to parts by mass, adding a toughener polyurethane prepolymer, a surfactant, a foaming agent 1 and a curing agent into the resin to obtain a foamed system; and stirring uniformly the foamed system at room temperature, and heating to cure and form to obtain the polyurethane-prepolymer-modified flame-retardant phenol formaldehyde foam thermal-insulation material. The phenol formaldehyde foam has the advantages of less shedding, high toughness and the like; and the adopted phenol formaldehyde resin has the advantages of low viscosity and favorable compatibility with the polyurethane prepolymer, and can be ...

High-pressure water and air knife Chinese yam harvester under ultra-deep and high-clay conditions

The invention provides a high-pressure water and air knife Chinese yam harvester under ultra-deep and high clay conditions, and mainly relates to the field of agricultural equipment. A high-pressure water and air knife Chinese yam harvester under ultra-deep and high clay conditions comprises a workbench, a high-pressure air pump, a high-pressure water pump and a sewage pump are arranged on the top face of the workbench, two support movable grooves distributed in the left-right direction are formed in the lower portion of the workbench, and a working support is installed in each support movable groove; the working supports can horizontally move along the corresponding support movable grooves, and each working support is provided with a high-pressure water spray nozzle, a high-pressure air spray nozzle and a sewage pipe suction nozzle. The Chinese yam harvester has the advantages that the Chinese yam harvester is simple in structure and convenient to use and is not limited by high-viscosity ...

Elastic calculation service system

The invention discloses a customer-oriented elastic calculation service system based on cloud computing. The elastic calculation service system comprises one or more cloud computing service physical machines providing elastic calculation, a CPU (101) obtained through a resource pool of a virtualization CPU, a memory unit (102) obtained by a virtualization memory pool, and a storage unit (103) obtained by a virtualization storage unit, wherein the virtualization CPU is located at one or more cloud computing service physical machines, and the CPU (101), the memory unit (102) obtained by the virtualization memory pool and the storage unit (103) obtained by the virtualization storage unit are located at one or more cloud computing service physical machines. The elastic calculation service system is suitable for providing elastic cloud computing service and has wide market application prospects.

Alcoholysis method of ethylene-vinyl acetate polymer

The invention provides an alcoholysis method of an ethylene-vinyl acetate polymer. An alcoholysis reaction is maintained under -4-0atm, and concrete steps and parameter selection are provided. The method has the advantages of simple operation, high alcoholysis degree and good product quality; and raw materials adopted in the invention are common, and technological conditions are simple, so industrial production can be extremely easily realized.

Method of synthesizing poplar cellulose derivative containing unsaturated group

Corrosion preventive method and corrosion preventive blanching device for display panel electrode

The invention discloses a corrosion protection method for display panel electrode and a corrosion protection hot iron device for preventing the display panel electrode from being corroded, and the method comprises the following steps: washing a display panel with an electrode, heating the washed display panel to volatilize the residual liquid, then electrically connecting the electrode of the display panel to a driving chip, and finally coating protection glue on the driving chip and the exposed area of the electrode. In the process of the corrosion protection method for display panel electrode, the display panel is heated by the hot iron device before connecting the electrode with the driving chip, in order to volatilize the residual liquid completely and avoid the washing liquid retaining on the electrode, thus preventing the corrosion of the electrode.

Method for preparing sodium carboxymethylcellulose from residues generated by producing biobutanol from maize straw

The invention discloses a method for preparing sodium carboxymethylcellulose from residues generated by producing biobutanol from maize straw. A by-product fiber slurry during production of biobutanol from the maize straw is taken as a raw material, and is subjected to pulverization, basification, etherification, washing, centrifugation, drying, pulverization and sieving to prepare the finished sodium carboxymethylcellulose. The residues generated in the process of producing the biobutanol from the maize straw are utilized fully and changed into treasure, so the industrial development of the production of the biobutanol from the maize straw is promoted, and the problems of deficient raw materials and high production cost during the production of the sodium carboxymethylcellulose are solved. The appearance of the prepared sodium carboxymethylcellulose is white or faint yellow powder, the pH value is between 6.0 and 8.5, the moisture content is less than or equal to 10 percent, the degree ...

Combined mold used for manufacturing heat-preserving wallboard

The invention discloses a combined mold used for manufacturing a heat-preserving wallboard. The mold solves the problems that a mold manufactured from board plastic and steel plates in the prior art is low in strength, materials are wasted, the mold is cumbersome and manufacturing cost is high. The mold comprises a mold plate part and a clamp part, wherein the clamp part is composed of a front stage clamp and a later stage clamp, and the mold plate part comprises two long side plates, two short side plates and a bottom plate; long-side rib bars are arranged at the two ends of each long side plate; rib bars are arranged on the bottom plate along the two ends of each long side, and the long side plates are closely attached to the rib bars; the two ends of each long side plate are respectively provided with two round holes which are used for mounting threaded rods; the front stage clamp is provided with a base, the length and the width of the base are equal to the bottom plate in the mold ...

Overload protection device suitable for combustor of drying equipment

The invention discloses a drying equipment burner overload protection device which comprises a drying equipment body, the drying equipment body comprises a grain storage section, a fan side air duct and a burner side air duct are arranged on the two sides of the grain storage section, and a burner is installed in the burner side air duct and used for heating air in the air ducts; a flame temperature monitoring sensor is installed above the combustor and connected with an overload switch, and the overload switch is connected with a PLC. The invention has the advantages that the flame temperature monitoring sensor is arranged at the upper part of the built-in burner of the drying equipment to monitor and display the flame temperature of the burner, and when the flame temperature exceeds the set temperature (such as 115 DEG C), the overload switch is triggered, the PLC sends an instruction to close the gas supply electromagnetic valve and the air induction electromagnetic valve of the burner ...

Method and device for predicting blast furnace gas occurrence amount

The invention discloses a method and device for predicting a blast furnace gas occurrence amount. The method includes the steps of obtaining blast furnace condition information, intensified smelting information and blast furnace gas occurrence amount data, setting up a BP neural network, selecting an input variable of the neural network according to the blast furnace condition information and the intensified smelting information, dividing the input variable into a first training set and a first test set, taking the blast furnace gas occurrence amount data as output of the neural network, dividing the blast furnace gas occurrence amount data into a second training set and a second test set, taking an input variable in the first training set and a blast furnace gas occurrence amount in the second training set as input data of the neural network and output data of the neural network respectively to conduct model training till the neural network is converged, inputting an input variable in ...

Precise positioning method and system for photovoltaic array position based on image recognition

The invention provides a photovoltaic array position accurate positioning method and system based on image recognition, and the method comprises the steps: collecting a photovoltaic array image in real time, and carrying out the detection of a lower left edge line of a photovoltaic array based on the image; when the left lower edge line is obtained, it is judged that a photovoltaic module detection area is entered; adopting a sub-pixel image matching method to accurately position the position of the photovoltaic module; based on the obtained position, the position of the detector is adjusted through a telescopic rod; obtaining the temperature data of the photovoltaic module through the detector, and carrying out the judgment of the shielding fault of the photovoltaic module based on the temperature data; the telescopic rod is adjusted upwards until the edge line of the upper end of the photovoltaic array is obtained from the photovoltaic array image, and routing inspection of the current ...

Anti-screen-shooting robust watermark embedding and extracting method and system based on feature point detection

The invention provides an anti-screen-shooting robust watermark embedding and extracting method and system based on feature point detection, relates to the technical field of digital media copyright protection, and provides an image correction algorithm based on PCA and SURF when a carrier image is shot and a watermark is extracted, so that a good correction effect can be achieved on generated distortion, and the watermark embedding and extracting efficiency is improved. And the robustness of the screen shooting watermark is indirectly ensured. According to the method, the image after screen shooting can be corrected so as to restore the image into a state in the screen, and meanwhile, the feature region before and after correction is selected so as to improve the embedding effect of the watermark. The invention aims to improve the robustness of screen-shooting watermarks. In the aspect of embedding of the screen shooting watermark, DCT is carried out on a carrier image, and then a DCT ...

Hidden watermark attack algorithm based on wavelet transform and attention mechanism

The invention discloses a hidden watermark attack algorithm based on wavelet transform and an attention mechanism, and relates to the technical field of digital watermarking, and the algorithm comprises the following steps: S1, obtaining a data set; using a DIV2K data set to cut all images into a uniform size, and using a QPHFMs watermark embedding algorithm to obtain a watermark-containing image as a data set of the network; s2, constructing a watermark attack network; s3, constructing a loss function; and S4, establishing an evaluation index. The technical problem to be solved by the invention is to provide a hidden watermark attack algorithm based on wavelet transform and an attention mechanism, which not only can effectively remove watermark information, but also can ensure the visual quality of an image without influencing the practical value of the image, and can enable the attack to have good imperceptibility and concealment.

Object data query method, device and equipment and computer readable storage medium

The embodiment of the invention discloses an object data query method, device and equipment and a computer readable storage medium. The object data query method comprises the steps that input position information is acquired; a cache value corresponding to the input position information is obtained according to the input position information, and the cache value comprises object data; whether the cache value needs to be refreshed or not is determined according to the cache value, if yes, an asynchronous updating thread is triggered to conduct cache data updating, meanwhile, the cache value serves as an object data query result to be returned, and if not, the cache value serves as the object data query result to be returned directly. According to the technical scheme, the problem of task logic abnormity caused by the fact that cache values read at part of positions in the same Geohash area are not consistent with actual task values due to inconsistent investment and bearing can be reduced ...

Method and device for processing picture for instant communication tool

The invention discloses a method and a device for processing pictures for an instant communication tool, belonging to the technical field of computers. The method comprises the following steps: obtaining the relevant information of an editing zone, wherein the relevant information comprises an abscissa range and an ordinate range; when a starting notice is received, obtaining the position information of a starting cursor, wherein the position information at least comprises a coordinate; recording the position information; obtaining the position information of the current cursor; according to the position information of the current cursor, the recorded position information and the relevant information, generating a line segment; and updating the recorded position information into the position information of the current cursor. The device comprises a first acquisition module, a second acquisition module, a third acquisition module and a generation module. According to the device and the method ...

Preparation method of phenol-urea-formaldehyde resin adhesive for E0-grade outdoor plywood

The invention discloses a preparation method of a phenol-urea-formaldehyde resin adhesive for E0-grade outdoor plywood. The preparation method comprises the following steps: step 1, mixing phenol, a formaldehyde solution and urea, adding a catalyst, and rising the temperature for reaction; step 2, adding the formaldehyde solution and urea which can also be added in the step 3 again, adding an alkali metal hydroxide solution for reaction; step 3, continuing to add the formaldehyde solution and the alkali metal hydroxide solution, if the urea is not added in the former step, adding the urea forreaction at the moment; and step 4, adding the urea and the alkali metal hydroxide solution for reaction until the viscosity is 1.5-2.0 seconds measured by a gardner-holdt tube reverse bubble measurement method, and then discharging. The adhesive-making process is mild in reaction and is easy to control, repeatability is good, and the storage life of the adhesive is more than 30 days. The strength of ...

Forcible entry equipment

The invention relates to forcible entry equipment which comprises a forcible entry device, a power device and a connecting assembly, the forcible entry device comprises an input shaft, the power device comprises an output shaft, and the input shaft and the output shaft are detachably connected. The connecting assembly comprises a first connecting part, a second connecting part, a limiting piece and a driving piece. The first connecting part is fixed to the forcible entry device, and the second connecting part is fixed to the power device. By moving the driving piece, the first connecting part and the second connecting part are kept in a connecting state under the action of the limiting piece or the first connecting part and the second connecting part are separated, so that the disassembly and assembly efficiency of the forcible entry device and the power device is improved, and the working efficiency of field rescue is improved.

Paper making sludge deodorization method

The invention discloses a method for deodorizing paper-making sludge. The concrete steps of the method are as follows: deodorizing wet sludge is added with an H2O2 or NaClO treatment solution with a concentration in mass percentage of between 0.10 to 1.00 percent, and the concentration of the NaClO treatment solution is the effective chlorine concentration; the mixing ratio of the wet sludge to the treatment solution is 0.5g/ml, and after the wet sludge and the treatment solution are mixed with even stirring and the wet sludge is immersed in the treatment solution for 10 to 12 hours. The method of the invention has the advantages of higher removal rate and reliability of deodorizing the paper-making sludge, treating odors with large air flow and high concentration, removing mixed odors by the multi-stage sharing washing, along with small floor areas, low investment and simple and convenient operation.

Binder for silicon carbide ceramic online reaction joint and preparation method thereof

The invention discloses a binder for silicon carbide ceramic online reaction joint and a preparation method thereof. The composition of the binder for silicon carbide ceramic online reaction joint comprises the following components in percentage by weight: 25-35% of water, 5-7% of polyacrylamide, 1-2% of adhesive, 30-45% of silicon carbide micro-powder, 10-20% of silicon powder and 5-8% of carbon powder. The method comprises the following steps: (1) adding polyacrylamide in water, stirring to adequately dissolve polyacrylamide, and then adding the adhesive to prepare polyacrylamide solution; (2) sequentially adding Si powder, C powder and the silicon carbide micro-powder in the polyacrylamide solution to prepare slurry; (3) carrying out ball-milling on the slurry to obtain the binder. The binder disclosed by the invention has the same ingredients with a blank, thus avoiding the sintering deformation due to non-uniform ingredients; the solid content is proper, thus ensuring the flowability ...

Thermosensitive polymeric microcapsules and preparation method and use thereof

The invention discloses thermosensitive polymeric microcapsules and a preparation method and use thereof. The thermosensitive polymeric microcapsules are microcapsules with a hollow structure, the wall material of the microcapsules is polyacrylic acid-poly(N-isopropylacrylamide), and the average size of the thermosensitive polymeric microcapsules is 80 to 2,000 nanometers; and cellulose ether-polyacrylic acid composite colloid particles serving as templates are polymerized with an N-isopropylacrylamide monomer on the surfaces of the templates, cellulose ether then is removed and thus, the microcapsules are obtained. The thermosensitive polymeric microcapsules can be used as carriers for medicines, particularly carriers for protein medicines and antitumor medicines. In the invention, in the presence of N,N'-methylenebisacrylamide serving as a crosslinking agent, the cellulose ether-polyacrylic acid composite colloid particles serving as the templates are polymerized with the N-isopropylacrylamide ...

Foam lignin resol resin and preparation method thereof

The invention discloses a foam lignin resol resin and a preparation method thereof. The resin is prepared from the following raw materials according to weight parts: 25-50 parts of phenol, 15-30 parts of paraformaldehyde, 1.5-4 parts of basic catalyst, 6-20 parts of lignin and 10-20 parts of water, wherein the lignin is crude enzymatic hydrolysis lignin which is the by-product of fermenting maize straw to prepare biological butanol and polysaccharide products, and the enzymatic hydrolysis lignin content is more than or equal to 70%. The preparation method comprises the following steps: adding the phenol, the water, part of the paraformaldehyde and a catalyst into a reaction flask for reaction; adding the enzymatic hydrolysis lignin, part of the paraformaldehyde and the catalyst into reaction liquid; and adding the rest of the paraformaldehyde and the catalyst, continuously carrying out copolycondensation on the mixture for a period of time, cooling and discharging. In the method, the lignin ...

Method for performing toughening modification on urea resin

The invention discloses a method for performing toughening modification on a urea resin. The method comprises the following steps: uniformly mixing toughening agents such as acrylic polymers, vinyl polymers or acetal polymers and the urea resin through dispersing equipment to obtain urea resin molding powder, wherein the ratio of the toughening agents such as acrylic polymers, vinyl polymers or acetal polymers which account for the mass of the mixture does not exceed 80 percent; pressing the urea resin molding powder with the granularity of 60-200 meshes under the conditions of 80-200 DEG C and 5-60MPa for 2-20 minutes by using a press vulcanizer, and preparing impact splines or bending splines. The urea resin is subjected to toughening modification by using the self-made toughening agents such as acrylic polymers or commercially available vinyl polymers or acetal polymers, wherein the self-made toughening agents such as acrylic polymers have the best toughening effect, the impact strength ...

Method and Apparatus for Managing Message

The present invention provides a method and an apparatus for managing message, including: receiving a request to perform a predetermined operation by a first user on a first message, the first message published by a second user and was previously obtained by the first user before the request to perform the predetermined operation, the request comprising information associated with the predetermined operation on the first message; determining status information of the first message based on a first index of the first message; sending the first message to the first user based on the status information. 1. A method for managing message in a computer network , the method comprising:receiving a request to perform a predetermined operation by a first user on a first message, the first message published by a second user and has been previously obtained by the first user before the request to perform the predetermined operation, the request comprising information associated with the predetermined operation on the first message;determining, based on a first index corresponding to the first message, status information of the first message;if the status information indicates that the first message is in a normal status,generating a second index and a second message, the second message corresponding to the second index and comprising the first index, the information associated with the predetermined operation, and the second index,sending, to the first user, the first message and the information associated with the predetermined operation; andif the status information indicates that the first message is in a deleted status,prompting the first user about failure of the predetermined operation.2. The method of claim 1 , wherein the predetermined operation on the first message comprises one of: forwarding the first message and starting conversation from the first message; wherein the information associated with the predetermined operation is comment message by the first user when ...

METHOD AND APPARATUS FOR DISPLAYING DATA

The embodiments of the present invention disclose a method and apparatus for displaying data, which relate to computer technologies. The method includes: determining a location where a scroll box is located; updating a data block displayed on at least one control through moving data blocks according to the location where the scroll box is located; and for each of the at least one control, adjusting the size of the control according to the size of the data block displayed on the control. Through adjusting the size of the control according to the size of the data blocks, the number of the control is adjusted, thus resources can be saved and calculation efforts can be reduced. In addition, since the height of the control is adjusted according to the size of the data block, diversified data services can be supported so as to meet the requirements of practical services. 1. A method for displaying data , comprising:determining a location in a display interface where a scroll box is located;updating a data block displayed on at least one control in the display interface through moving data blocks according to the location in the display interface where the scroll box is located; andfor each of the at least one control, adjusting the size of the control according to the size of the data block displayed on the control.2. The method of claim 1 , before determining the location in the display interface where the scroll box is located claim 1 , further comprising:creating a limited number of controls which can fill the display interface.3. The method of claim 1 , wherein a process of updating a data block displayed on at least one control in the display interface through moving data blocks claim 1 , and for each of the at least one control claim 1 , adjusting the size of the control according to the size of the data block displayed on the control claim 1 , comprises:{'sup': 'th', 'when determining that the scroll box is located in the jlattice, performing Step A{'sup': 'th', ' ...

Optical fiber connector plug assembly, optical fiber connector assembly and communication device

This application provides a fiber connector plug assembly, a fiber connector assembly, and a communication device. The fiber connector assembly includes a connector main part and at least two kits, a front section of a ferrule in the connector main part is entirely located outside a main housing, and the at least two kits are capable of being detachably connected to the main housing to block the front section of the ferrule. The connector main part is selectively connected to one of the at least two kits to form a fiber connector plug, a slot is formed between the kit and the front section, and when the ferrule is inserted into a ferrule sleeve of a fiber adapter, an open end of the ferrule sleeve of the fiber adapter is located in the slot. A fiber connector plug assembly provided in this application can adapt to fiber connectors of different types, has possibility, and can avoid a waste of materials.

Fiber Connector Plug Assembly, Fiber Connector Assembly, and Communication Device

This application provides a fiber connector plug assembly, a fiber connector assembly, and a communication device. The fiber connector assembly includes a connector main part and at least two kits, a front section of a ferrule in the connector main part is entirely located outside a main housing, and the at least two kits are capable of being detachably connected to the main housing to block the front section of the ferrule. The connector main part is selectively connected to one of the at least two kits to form a fiber connector plug, a slot is formed between the kit and the front section, and when the ferrule is inserted into a ferrule sleeve of a fiber adapter, an open end of the ferrule sleeve of the fiber adapter is located in the s

Optical fiber connector plug assembly, optical fiber connector assembly and communication device

Conjunto de enchufe de conector de fibra, conjunto de conector de fibra y dispositivo de comunicacion

Esta aplicacion proporciona un conjunto de enchufe de conector de fibra, un conjunto de conector de fibra y un dispositivo de comunicacion. El conjunto del conector de fibra incluye una parte principal del conector y al menos dos kits, una seccion frontal de un casquillo en la parte principal del conector esta completamente ubicada fuera de la carcasa principal, y los al menos dos kits se pueden conectar de forma desmontable a la carcasa principal. para bloquear la seccion frontal del casquillo. La parte principal del conector se conecta selectivamente a uno de los al menos dos kits para formar un enchufe de conector de fibra, se forma una ranura entre el kit y la seccion frontal, y cuando el casquillo se inserta en un manguito de casquillo de un adaptador de fibra, un El extremo abierto del manguito del casquillo del adaptador de fibra se encuentra en la ranura. Un conjunto de enchufe de conector de fibra proporcionado en esta solicitud puede adaptarse a conectores de fibra de diferentes tipos, tiene posibilidades y puede evitar el desperdicio de materiales.

Conjunto de enchufe de conector de fibra, conjunto de conector de fibra y dispositivo de comunicación.

Esta aplicación proporciona un conjunto de enchufe de conector de fibra, un conjunto de conector de fibra y un dispositivo de comunicación. El conjunto del conector de fibra incluye una parte principal del conector y al menos dos kits, una sección frontal de un casquillo en la parte principal del conector está completamente ubicada fuera de la carcasa principal, y los al menos dos kits se pueden conectar de forma desmontable a la carcasa principal. para bloquear la sección frontal del casquillo. La parte principal del conector se conecta selectivamente a uno de los al menos dos kits para formar un enchufe de conector de fibra, se forma una ranura entre el kit y la sección frontal, y cuando el casquillo se inserta en un manguito de casquillo de un adaptador de fibra, un El extremo abierto del manguito del casquillo del adaptador de fibra se encuentra en la ranura. Un conjunto de enchufe de conector de fibra proporcionado en esta solicitud puede adaptarse a conectores de fibra de diferentes tipos, tiene posibilidades y puede evitar el desperdicio de materiales.

Conjunto de enchufe de conector de fibra, conjunto de conector de fibra y dispositivo de comunicación

Esta aplicación proporciona un conjunto de enchufe de conector de fibra, un conjunto de conector de fibra y un dispositivo de comunicación. El conjunto del conector de fibra incluye una parte principal del conector y al menos dos kits, una sección frontal de un casquillo en la parte principal del conector está completamente ubicada fuera de la carcasa principal, y los al menos dos kits se pueden conectar de forma desmontable a la carcasa principal. para bloquear la sección frontal del casquillo. La parte principal del conector se conecta selectivamente a uno de los al menos dos kits para formar un enchufe de conector de fibra, se forma una ranura entre el kit y la sección frontal, y cuando el casquillo se inserta en un manguito de casquillo de un adaptador de fibra, un El extremo abierto del manguito del casquillo del adaptador de fibra se encuentra en la ranura. Un conjunto de enchufe de conector de fibra proporcionado en esta solicitud puede adaptarse a conectores de fibra de diferentes tipos, tiene posibilidades y puede evitar el desperdicio de materiales.

método e aparelho para exibir dados

método e aparelho para exibir dados. as concretizações da presente invenção revelam um método e aparelho para exibir dados, os quais se relacionam com tecnologias de computador. o método inclui: determinar uma localização onde uma caixa de rolagem está localizada; atualizar um bloco exibido em pelo menos um controle por mover os blocos de dados de acordo com a localização onde a caixa de rolagem está localizada; e, para cada um dos pelo menos um controle, ajustar o tamanho do controle de acordo com o tamanho do bloco de dados exibido no controle. através do ajuste do tamanho de acordo com o tamanho dos blocos de dados, o número do controle é ajustado, assim recursos podem ser economizados e esforços de cálculo podem ser reduzidos. em adição, desde que a altura, do controle é ajustada de acordo com o tamanho do bloco de dados, serviços diversificados podem ser suportador de modo a satisfazer os requerimentos de serviços práticos.

汽车座椅

本实用新型适用于汽车零部件技术领域，提供了一种汽车座椅，包括座椅本体、桌板以及复位和限位组件。桌板设置于座椅本体的后侧并与座椅本体转动连接，复位和限位组件用于使所述桌板产生具有贴合在所述座椅本体后侧的趋势且能够使桌板相对座椅本体保持锁定状态。本实用新型提供的汽车座椅，通过在座椅本体的后侧设置能够与座椅本体转动连接的桌板以及使桌板产生贴合在座椅本体后侧的趋势且使桌板相对座椅本体保持锁定状态的复位和限位组件，使后排乘客能够在需要乘车旅行中根据需求使用或者收起桌板，提高乘客的乘车体验，提高汽车便利性。

método e aparelho para exibir dados

método e aparelho para exibir dados. as concretizações da presente invenção revelam um método e aparelho para exibir dados, os quais se relacionam com tecnologias de computador. o método inclui: determinar uma localização onde uma caixa de rolagem está localizada; atualizar um bloco exibido em pelo menos um controle por mover os blocos de dados de acordo com a localização onde a caixa de rolagem está localizada; e, para cada um dos pelo menos um controle, ajustar o tamanho do controle de acordo com o tamanho do bloco de dados exibido no controle. através do ajuste do tamanho de acordo com o tamanho dos blocos de dados, o número do controle é ajustado, assim recursos podem ser economizados e esforços de cálculo podem ser reduzidos. em adição, desde que a altura, do controle é ajustada de acordo com o tamanho do bloco de dados, serviços diversificados podem ser suportador de modo a satisfazer os requerimentos de serviços práticos.

Method for preparing biomass-based conductive hydrogel by 3d printing

A method for preparing a biomass-based conductive hydrogel by 3D printing is provided. Firstly, a cellulose-based macromonomer, a rosin-based monomer, an acrylic acid monomer and an initiator are mixed in a certain proportion, stirred, and dissolved at 25-70° C. Then, diisocyanate in an amount of 5-10 wt % of a total mass of the monomers is added to the mixed solution and mixed uniformly to prepare a 3D printing photosensitive resin solution. An SLA light-curing 3D printer is used to print a hydrogel precursor 1 with a complex shape. Next, the hydrogel precursor 1 is heated to obtain a hydrogel precursor 2 with a dual-curing network. Finally, the obtained hydrogel precursor 2 is swelled in a 1-15 wt % alkaline solution at 5-60° C. for 0.1-10 hours to obtain the biomass-based conductive hydrogel.