28results about How to "Low transparency" patented technology

The invention provides a digital watermark embedding and detecting method, equipment and a medium, and aims to solve the problems of easy perception, opaqueness and low robustness of the existing text digital watermark technology. The method comprises the steps that an Nth target clause is predicted, and at least two (N + 1) th candidate clauses are generated; according to the Nth target clause and a preset first watermark feature coding sequence, a first watermark feature coding value of an (N + 1) th target clause is determined, and the (N + 1) th target clause is the next clause of the Nth target clause; determining the (N + 1) th target clause according to the prediction probability of the at least two (N + 1) th candidate clauses, the first watermark feature coding value and a preset readability threshold; under the condition that the N + 1 target clauses comprise text end characters, a full text embedded with watermarks is determined, the full text embedded with watermarks comprises the N + 1 target clauses, and N is an integer larger than 0. According to the invention, low perception, transparency and robustness of digital watermark embedding can be realized.

The invention discloses a regenerated polypropylene composite material, which comprises the following components: 90-97 parts of regenerated polypropylene; 0.3 to 0.8 part of nano porous silicate; 3-8 parts of a toughening / transparent agent; 0.05 to 0.2 part of an anti-precipitation agent; and the anti-precipitation agent is selected from bis (2, 6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate ester. By adding the nano-porous silicate with specific parameters, the odor of the regenerated polypropylene can be effectively adsorbed, the dissolved substance can be reduced, and the transparency cannot be obviously reduced; meanwhile, the anti-precipitation agent can improve the formation of impurities in the processing process, and the impurities are precipitated on the surface, so that the haze is remarkably reduced, and the light transmittance is improved; furthermore, by selecting a toughening / transparent agent, not only can the toughness be improved, but also the transparency of the regenerated polypropylene composite material can be improved, and compared with other types of toughening agents, xylene soluble substances can be further reduced. The regenerated polypropylene composite material provided by the invention has the advantages of qualified dissolved substance detection, high transparency, low odor and good toughness.

The application belongs to the field of polyvinyl chloride functional film materials, and particularly relates to a temperature-variable light-adjusting PVC film with multiple physical barrier functions and a preparation method. The PVC film comprises a PVC continuous phase, temperature-variable light-adjusting functional particles dispersed in the PVC continuous phase, lamellar barrier fillers arranged in the direction of the film surface, and an interface compatible locking component. The temperature-variable light-adjusting functional particles and the lamellar barrier fillers form a spatial coupling structure in the PVC continuous phase, the lamellar barrier fillers constitute in-plane oriented labyrinth diffusion channels, and the interface compatible locking component forms an interface bridging layer between the PVC continuous phase, the temperature-variable light-adjusting functional particles and the lamellar barrier fillers. The application realizes the cooperation of temperature response optical adjustment, lamellar labyrinth barrier and interface migration locking, so that the film material can produce changes in visible light transmittance, haze, color and / or near-infrared transmittance when the temperature changes, and the transmittance or migration of water vapor, oxygen and plasticizers is reduced.

The invention provides a new strain XP1 of Leuconostoc lactis, and the preservation number of the new strain XP1 of the Leuconostoc lactis is CGMCC (China General Microbiological Culture Collection Center) No.31789. The invention also provides a preparation method of the new strain XP1 of the Leuconostoc lactis. The novel leuconostoc lactis strain XP1 provided by the invention has relatively good pullulanase production activity and acid production characteristic; in a hemolysis experiment, no hemolysis phenomenon is generated, hemolysis is avoided, and safety and non-toxicity are achieved; the compound has drug resistance to rifampicin and has an inhibition effect on pathogenic bacteria such as staphylococcus aureus and escherichia coli; the strain XP1 has good oxidation resistance, the DPPH free radical scavenging rate is 85.20%, the superoxide anion free radical scavenging rate is 63.50%, the ABTS < + > free radical scavenging rate is 55.12%, and the strain XP1 has good application prospects in food development, health care product preparation and medicine preparation.

The present invention provides a dental ceramic coloring solution with which the desired shade can be imparted to a dental ceramic while improving the strength of the dental ceramic. The present invention relates to a coloring solution for coloring a dental ceramic, comprising a coloring component, a solvent, and a Zr component.

The invention relates to the field of new packaging materials, and provides a composite film for fresh-keeping of green leaf vegetables and a preparation method thereof, the main raw materials of the composite film comprise a base material, citric acid, glacial acetic acid and nicotinamide; wherein the base material is a mixture of chitosan and polyvinyl alcohol; the preparation method comprises the following steps: dissolving and mixing the chitosan and the polyvinyl alcohol, adding a nicotinamide solution, stirring and carrying out ultrasonic treatment to uniformly distribute the components, and finally forming the film by adopting a tape casting process. The composite film can effectively delay oxidation and decay of the green vegetables and remarkably prolong the shelf life of the green vegetables. The composite film has good mechanical properties and flexibility, and is suitable for various fresh-keeping applications. The preparation process is simple, large-scale production is easy, and the material is environment-friendly and biodegradable and has a wide application prospect.

The present invention relates to the field of radiation cooling technology, and in particular to a radiation cooling test device, including a test device body, a temperature measuring device, and a bracket, wherein the test device body includes a top support rod and a plurality of vertical rods, wherein the top support rod and the plurality of vertical rods together form a cavity, wherein a transparent mesh layer for placing a test sample is provided at the bottom of the cavity, and the periphery of the cavity is covered with a transparent film, wherein the temperature measuring device is provided below the cavity, and wherein the bracket includes a plurality of support rods connected to the vertical rods. The present invention has a simple structure, an ingenious construction, a low manufacturing cost, a low solar radiation absorption rate, a high light transmittance, good sealing, and good test accuracy.

The invention discloses a preparation method of a zinc aluminum oxide transparent conductive oxide film. Preparing defective nano aluminum oxide sol; preparing a zinc oxide precursor solution; preparing defect aluminum oxide modulated and doped zinc oxide sol to obtain homogeneous zinc oxide aluminum precursor sol; spin-coating by a sol-gel method; the six dried glass sheets are respectively spin-coated with five different zinc oxide aluminum precursor sols with the doping ratio of 2%-10% and an undoped zinc oxide precursor solution, the spin-coating speed is 2000 rpm, the time is 30 s, and annealing treatment is conducted for 10 min at the temperature of 250 DEG C; detecting the mobility; the problem that the overall performance is affected due to non-uniform conductivity and transparency caused by non-uniform doping in an existing alternative doping technology is solved; and the transparency may be reduced by increasing the doping concentration to improve the conductivity, and traditional doping causes lattice distortion, changes the lattice constant, influences the grain size and shape and the like.

Provided are an X-ray opaque filler that can impart X-ray opacity required for a dental curable composition, and besides, hardly reduces the transparency of a cured body and thus enables aesthetic restoration, a method of producing the X-ray opaque filler, and a dental curable composition using the X-ray opaque filler. Specifically, provided are an X-ray opaque filler, which is blended in a curable composition including a polymerizable monomer to impart X-ray opacity to the curable composition and a cured body thereof, the X-ray opaque filler including any powder selected from the group consisting of: first powder including crystalline rare earth metal fluoride particles as a main component and having a full width at half maximum of a maximum intensity peak derived from the crystalline rare earth metal fluoride particles of 0.3° or more in an X-ray diffraction pattern; and second powder obtained by subjecting the first powder to surface treatment, a method of producing the X-ray opaque filler, and a dental curable composition using the X-ray opaque filler.

The present invention discloses an unmanned ecological active water bath control method and equipment, comprising the following steps: step one, liquid absorption: extending the water absorption pipe to the bottom of the riverbed, and the high-pressure pump sucks the muddy and water mixed sewage liquid into the reaction chamber; step two, oxidation disinfection treatment: turning on the micro-nano bubble generator and the high-pressure ionization gasification generator, pre-treating the muddy and water mixed sewage liquid to form a gas-liquid mixed liquid; step three, liquid spraying: pumping the gas-liquid mixed liquid to the bottom of the riverbed to form a muddy and water mixed liquid; step four, secondary liquid absorption and stirring: pumping the muddy and water mixed liquid and part of the nano bubbles at the bottom of the water area again, and transporting them to the high-pressure agitator for stirring to obtain a uniform mixed liquid; step five, spraying aeration: spraying the uniform mixed liquid on the water surface. The present invention has the following advantages and effects: it has the effects of safety and environmental protection, effective bath control, and improving the self-healing ability of water bodies.

The application relates to the field of new packaging materials, and provides a composite film for fresh-keeping of green leaf vegetables and a preparation method thereof, main raw materials of the composite film including a base material, citric acid, glacial acetic acid and nicotinamide; the base material is a mixture of chitosan and polyvinyl alcohol; the preparation method is that chitosan and polyvinyl alcohol are dissolved and mixed, then a nicotinamide solution is added, stirring and ultrasonic treatment are conducted to uniformly distribute the components, and finally a flow casting process is adopted to form a film. The composite film can effectively delay oxidation and corruption of green leaf vegetables, and significantly prolong the shelf life of the green leaf vegetables. The composite film has good mechanical properties and flexibility, and is suitable for various fresh-keeping applications. The preparation process is simple, easy for large-scale production, the material is environment-friendly and biodegradable, and the composite film has a wide application prospect.

The utility model discloses a belong to partition structure technical field, concretely is a kind of single-layer heat insulation fireproof glass partition structure, including installation frame and spray component, the installation frame is provided with bearing groove, the bearing groove bottom is equipped with liquid collecting groove, the liquid collecting groove both sides are equipped with drain port, the bearing groove top is equipped with spray pipe hole and spray component, the spray component includes miniature water pump, the water inlet end of miniature water pump is connected with water tank by inlet tube, the lateral wall of water tank is connected with water suction pipe, the other end of water suction pipe is connected with drain port, the water outlet end of miniature water pump is connected with outlet tube, the outlet tube is connected with spray pipe, and the spray pipe is installed with shower nozzle, water in water tank can be pumped out by spray component, and water is evenly sprayed on fireproof glass by outlet tube, spray pipe and shower nozzle.In fire, spray can cool fireproof glass, prevent high-temperature damage, and reduce its transparency to enhance partition effect.

The invention provides a waveguide color-changing driving circuit and intelligent glasses, and relates to the technical field of intelligent glasses, the waveguide color-changing driving circuit comprises a power supply switching circuit, the power supply switching circuit is provided with an input end used for accessing a first voltage, and an output end of the power supply switching circuit is electrically connected with a power supply end of a waveguide element; the power supply switching circuit is used for enabling a first voltage to flow through the waveguide element along a first voltage direction or enabling the first voltage to flow through the waveguide element along a second voltage direction; the first voltage direction is a forward voltage direction corresponding to the waveguide element, and the second voltage direction is a backward voltage direction corresponding to the waveguide element; the transparency of the waveguide element is reduced under the condition that the first voltage flows through the waveguide element along the first voltage direction; the waveguide element increases its transparency when the first voltage flows through the waveguide element in the second voltage direction. According to the invention, the transparency of the waveguide sheet can be changed by using the electric field, so that the intelligent glasses can better adapt to application in different scenes.

The invention belongs to the technical field of packaging materials, and particularly relates to an ultrathin high-speed packaging biaxially oriented polypropylene film and a preparation method thereof. The polypropylene film comprises an extrusion layer I, an extrusion layer II, a core layer, an extrusion layer III and an extrusion layer IV which are sequentially connected from outside to inside. The sealing temperature of the polypropylene film is lower than 90 DEG C, and the sealing requirement of a high-speed packaging machine can be met; the bending modulus of the film exceeds 1800 Mpa, and the high-speed film feeding requirement of a packaging machine is met; meanwhile, the advantages of low friction, high transparency, low shrinkage and the like are realized.

The invention relates to the technical field of electrical data processing, and discloses a mechanical performance optimization method and system for a fast vacuum switch, and the method comprises the steps: obtaining a vacuum state data set in the use process of the fast vacuum switch, and obtaining a vacuum state evaluation value based on the analysis of the vacuum state data set; acquiring a component state data set in the use process of the quick vacuum switch, and analyzing based on the component state data set to obtain a component state evaluation value; acquiring a mechanical motion data set in the use process of the rapid vacuum switch, and analyzing based on the mechanical motion data set to obtain a mechanical motion evaluation value; based on the vacuum state evaluation value, the component state evaluation value and the mechanical motion evaluation value, the optimization condition of the rapid vacuum switch is judged; optimizing the mechanical performance of the quick vacuum switch needing to be optimized based on the optimization condition judgment result of the quick vacuum switch; the problems that an existing vacuum switch mechanical performance optimization method is low in optimization result accuracy and optimization efficiency are solved.

A method for routing homologous Binlog messages belongs to the technical field of database management. The method includes configuring a message source, which includes applications running in different application deployment environments; all applications are connected to the same database through user names associated with the application deployment environments; configuring a database, which routes Binlog messages under different user names to corresponding message queues or topics; configuring a consumer client; the application of the consumer client can automatically monitor the corresponding message queue or topic according to the application deployment environment in which it runs, and consume the Binlog messages in the message queue or topic. This solution ensures that messages can be accurately classified and delivered to the corresponding message queue or topic, effectively avoiding cross-environment message interference and improving the accuracy and efficiency of message processing.

The invention belongs to the technical field of coatings, and particularly relates to a low-temperature extinction transparent polyester resin composition as well as a preparation method and application thereof. The polyester resin composition comprises carboxyl-terminated polyester resin with a high acid value and carboxyl-terminated polyester resin with a low acid value, the high-acid-value carboxyl-terminated polyester resin is prepared from the following raw material components: dihydric alcohol A, polyhydric alcohol, nitrogen-containing dihydric alcohol, polyatomic acid A, an acidolysis agent A and an esterification catalyst, the low-acid-value carboxyl-terminated polyester resin is prepared from the following raw material components: dihydric alcohol B, nitrogen-containing dihydric alcohol, polyacid B, an acidolysis agent B and an esterification catalyst, the polyol does not include a diol. After the carboxyl-terminated polyester resin with the high acid value and the low acid value is applied to a powder coating, the powder coating can have extinction and low-temperature curing (140-160 DEG C curing) performance at the same time and has good spraying powdering rate, and an obtained coating is low in gloss (lower than 40 GU), high in transparency and excellent in impact resistance.

The present invention discloses a silicon dioxide-based composite material and a preparation method and application thereof, and relates to the technical field of inorganic materials. The present invention constructs and obtains a new silicon dioxide-based composite material, wherein the silicon dioxide-based composite material has a core-shell structure, wherein the core layer is zinc oxide and the shell layer is silicon dioxide polymer; 50 The particle size is less than 20 μm. The silica-based composite material obtained by the present invention has a core-shell structure, can reflect and scatter external light twice, has high hiding power and low transparency, and can be used as a toothpaste abrasive to prepare a white paste, making up for the defect that silica cannot be used alone when preparing white paste in the oral field.

The present application relates to a kind of biaxial stretching flow polypropylene composite film and its preparation method, belong to packaging material technical field;The present application is prepared with homopolymerization polypropylene, copolymerization polypropylene, slip agent, nucleating agent, antioxidant, modified nanosilica as raw material a kind of biaxial stretching flow polypropylene composite film of high transparency and with good antistatic property and ultraviolet resistance performance, which can be used in food packaging field, the present application is modified to nanosilica, ultraviolet absorber is grafted on the surface of nanosilica, not only solve the problem of nanosilica easy to agglomerate, also solve the problem of ultraviolet absorber easy to migrate, by quaternary ammonium salt structure conjugation, ultraviolet absorber has better ultraviolet absorption performance and antistatic property.

The embodiment of the utility model discloses an invisible salient-point-preventing nipple sticker with a thin edge and a thick middle part, which comprises a nipple sticker body, and one surface of the nipple sticker body, which is attached to a user, is a circular surface; the thickness is gradually reduced from the central point of the circular surface to the edge of the circular surface; wherein the breast patch body is tangent along the direction perpendicular to the circular surface, and a line, far away from a user, of the tangent surface is an arc-shaped line; the curvature of the arc line ranges from 0.016 / mm to 0.018 / mm. According to the embodiment of the utility model, the structure of the breast patch body is adjusted, so that the breast patch body is smoother, when the breast patch is attached to a user, the breast patch can fit the breast curve of the user, the breast shape is more natural and round after the breast patch is worn on the upper body, and the breast patch is comfortable and attractive to wear.

The invention provides ternary copolymerized polyimide, a polyimide film and a preparation method and application thereof, the ternary copolymerized polyimide is prepared from the following monomer raw materials through polymerization and imidization reaction: diamine monomer: 9, 9-bis (4-aminophenyl) fluorene; the dianhydride monomer comprises hexafluorodianhydride and 9, 9-bis (3, 4-dicarboxyphenyl) fluorene dianhydride; wherein the total molar weight ratio of the diamine monomer to the dianhydride monomer is 1: 1; in the dianhydride monomer, the molar ratio of the 6FDA to the BPAF is (0.8-1.2): 1. According to the present invention, the traditional thought that the transparency is improved by introducing the fluorenyl monomer at the low content is abandoned, and the high-proportion rigid double fluorenyl structure (BAFL and BPAF) and the flexible fluorine-containing structure (6FDA) are innovatively adopted to perform the ternary polymerization at the specific ratio so as to produce the significant synergistic effect; the obtained polyimide film has high heat resistance (Tg is greater than or equal to 420 DEG C), low thermal expansion coefficient (CTE is less than or equal to 20 ppm / K), low dielectric constant (Dk is less than or equal to 3.5 under 10 GHz) and high transparency (light transmittance at 450 nm is greater than or equal to 85%), and is especially suitable for high-performance flexible display substrates.

The manufacturing method of the electronic equipment protection shell comprises the steps that a PET sheet and a PC sheet are bonded through a photosensitive adhesive to form a back plate; the back plate is placed in an injection mold for injection molding, the PC sheet and the injection molding material are welded, and a frame surrounding the back plate is formed; and releasing the injection mold to obtain the electronic equipment protection shell. According to the invention, injection molding is carried out by bonding the PET sheet and the PC sheet, the PC sheet and the injection molding material are welded during injection molding, and a hot melt high-temperature reaction is not directly generated on the surface of the PET sheet, so that on one hand, the welding defect possibly generated by hot melt adhesive welding is avoided, and on the other hand, the reduction of the transparency of the PET sheet due to injection molding is avoided; compared with the prior art, the device has prominent substantive features and remarkable progress.

The invention discloses a full-printing flexible metal oxide neuromorphic transistor device capable of being prepared on a large scale, which adopts a vertical structural design and sequentially comprises a PI (Polyimide) film substrate, a metal silver conductive layer (gate), a zirconium oxide (ZrOx) gate dielectric layer, an amorphous indium gallium zinc oxide (a-IGZO) metal oxide channel layer and a metal silver conductive layer (source and drain) from bottom to top. Wherein a grid electrode (G) of the neuromorphic transistor is a port signal input end of the transistor and is used for simulating a presynaptic membrane of a biological synapse. The conductance between the source electrode (S) and the drain electrode (D) is used for simulating the weight of biological synapses, and has good PFF simulation, SNDP, SDDP and SRDP synapses characteristics. By introducing the printing technology of full ink-jet printing, multiple layers of functional materials are directly deposited in the normal-temperature and normal-pressure environment, the large-scale preparation technological process is remarkably simplified, the production cost is reduced, and the requirement for large-scale integration is met.

This invention discloses a KASP molecular marker primer set for improving the quality of semi-glutinous rice and its application, belonging to the field of bio-breeding technology. The development method of the KASP molecular marker primer set for improving the quality of semi-glutinous rice disclosed in this invention is as follows: target gene sequencing is performed on donor and recurrent parents; the BEIIb, SSIV-1, SSI, SSIIa, and PUL gene sequences are compared between the donor and recipient parents to screen for SNP mutation sites for KASP molecular marker development; the primer set for KASP molecular markers is synthesized; KASP molecular marker detection is performed on the segregating population; and finally, six new rice lines are obtained. Compared with the recurrent parents, the appearance quality of the rice in the five lines showed significantly reduced chalkiness rate, chalkiness degree, and transparency, and significantly increased amylose content. Compared with the donor parents, the gel consistency increased, the gelatinization temperature decreased, and the protein content remained unchanged.

The invention discloses a real-time process control system and method, and the system comprises a data obtaining module which is used for obtaining the process collection parameters of a target process in real time at a target interval moment in the process flow of semiconductor photoetching process equipment for semiconductors, and the process flow of the semiconductors is used for representing the process cycle of a single semiconductor; the photoetching analysis module is used for receiving the process acquisition parameters transmitted by the data acquisition module and then performing data analysis on the process acquisition parameters so as to obtain process adjustment parameters and then feed back the process adjustment parameters to the semiconductor photoetching process equipment; and after the semiconductor photoetching process equipment receives the fed back process adjustment parameters, the process acquisition parameters at the target moment are updated. Real-time monitoring and parameter adjustment feedback of the manufacturing process can be achieved in the manufacturing process of the single semiconductor, compared with batch adjustment in the prior art, the convergence degree is higher, the product quality problem caused by parameter deviation can be reduced, and the production efficiency and the product quality are improved.

The invention discloses a phenoxy triazine sulfonate flame retardant as well as a preparation method and application thereof, relates to the field of sulfonate flame retardants, and aims to solve the problems that an existing sulfonate flame retardant is relatively high in water solubility, short in timeliness and easy to separate out. The preparation method of the phenoxy triazine sulfonate flame retardant comprises the following steps: 1, mixing cyanuric chloride and a solvent, and stirring until cyanuric chloride and the solvent are dissolved; 2, dissolving a bisphenol organic matter and an acid-binding agent in water, and dropwise adding to obtain an intermediate 1; 3, dissolving p-hydroxybenzene sulfonate and an acid-binding agent in water, dropwise adding to obtain an intermediate 2 when the dropwise adding amount reaches half, continuously dropwise adding, heating, and carrying out reflux reaction; and 4, stopping heating, cooling, carrying out suction filtration, washing and drying to obtain the phenoxy triazine sulfonate flame retardant. The flame retardant provided by the invention has water insolubility, has better compatibility with PC, has less influence on transparency and haze, and is not easy to separate out in a PC matrix. The flame retardant is used for flame retardance of bisphenol A polycarbonate.

The utility model provides a chip blocking device for a bench drill, which relates to the technical field of bench drills and comprises a lifting type chip blocking device body, an anti-scratch window and an air curtain generating mechanism. According to the device, chippings generated in the bench drill machining process are blocked through the lifting type chipping blocking device body, the blocking height can be adjusted, the lifting type chipping blocking device body observes the bench drill machining process through the scratch-resistant window, and the scratch-resistant window improves the scratch-resistant performance; an air curtain is formed on the inner side of the anti-scratch window in cooperation with the air curtain generation mechanism, splashed chippings are blocked by the air curtain and then fall on the anti-scratch window, and the situation that the transparency is reduced due to the fact that the window is scratched is avoided through double protection.

The utility model provides a double-color quartz tube liquid level meter which comprises a liquid level tube, the top and the bottom of the liquid level tube are both connected with connecting blocks, defrosting mechanisms are arranged on the outer sides of the connecting blocks, one sides of the connecting blocks are connected with pressure relief mechanisms, and the defrosting mechanisms are used for increasing the temperature around the liquid level tube. The defrosting mechanism comprises a sleeve block screwed to the outer side of the connecting block, the top of the sleeve block is connected with a connecting column, one end of the connecting column penetrates through the top of the sleeve block, extends into the sleeve block and is connected with a heat conduction disc, and the bottom of the heat conduction disc is connected with an inserting block. According to the double-color quartz tube liquid level meter, the problems that in the process that a defrosting mechanism generates heat, liquid in the liquid level tube is heated and volatilized to generate steam, the pressure intensity in the liquid level tube is increased, and negative influences are generated on the structural stability are solved.