38 results about "Random mixing" patented technology

The invention provides a method for utilizing base metal catalytic ink to manufacture a printed circuit. The method is characterized in that: the ink mainly is composed of 10% to 90% of functional materials, 2% to 18% of organic carriers and 8% to 72% of organic solvents, wherein the functional materials are formed by metal or / and metal oxide powder, the metal is one selected from the group of iron, nickel, aluminum, and zinc, or a mixture of at least two metals in random mixing proportion selected from the group of iron, nickel, aluminum, zinc, and copper, and a metal oxide is selected from ferrous oxide or / and cuprous oxide. According to the invention, traditional printing modes of screen printing, gravure printing and the like can be employed to manufacture lines on insulation base material, and then the insulation base material is put into a replacement reaction solution for a displacement reaction to form a conductor printed circuit. The method has the following advantages: (1) the ink does not contain precious metals of silver, gold and the like, and manufacture cost of related products is greatly reduced; (2) the method is simple; (3) the manufactured printed circuit is reliable, electric conductivity is good, and application is wide.

A system and method of the present invention randomly mixes and palletizes various containers received from a conveyor. A control system received an order in advance to cooperate with an automatic storage and retrieval system to pick the containers, ordered by various customers, and to place them on a second conveyor. A robotic device, such as a robotic arm or a gantry system, selectively picks the containers from the second conveyor and places the containers on a pallet in a mixed fashion. The pallets are delivered to the respective customers.

The invention discloses a DWT-SVD-ICA-based digital audio watermarking algorithm. The algorithm is performed according to the following steps: the first step, preprocessing is performed on an original audio signal, and a watermark is embedded in a selected appropriate segment; the second step, when the watermark is embedded, three-level wavelet conversion is performed on the original audio signal, singular value decomposition is performed on an approximate component of the wavelet conversion, and then watermark embedment is completed by utilizing a random mixing method; and the third step, when the watermark is extracted, wavelet conversion and singular value decomposition are performed on the audio signal embedded with the watermark, and then watermark blind detection is achieved by utilizing a negentropy maximization fixed point algorithm. Compared with a traditional ICA-based audio watermarking algorithm, the DWT-SVD-ICA-based digital audio watermarking algorithm is advantageous in that watermark robustness is improved to some extent, that is to say, the watermark robustness is high; and imperceptibility of the watermark can be guaranteed, and blind extraction of the watermark can also be guaranteed.

The invention relates to a random hybrid explicit and implicit time domain finite difference method, which comprises the following steps: defining random electromagnetic parameters, and determining the statistical law of the mean value and the standard deviation according to experimental data; performing linear expectation operation on the Maxwell equation to obtain an iterative solution formula of electric field and magnetic field expectations; performing variance operation on the Maxwell equation to obtain an iterative solution formula of the electric field variance and the magnetic field variance; inputting the mean value and the standard deviation of random electromagnetic parameters, and iteratively solving the expectation and the standard deviation of an electric field and a magneticfield in the Maxwell equation; and electromagnetic responses such as expectations and variances of the electric field and the magnetic field are subjected to post-processing to obtain broadband electromagnetic scattering characteristics. According to the method, the electromagnetic scattering characteristic of the target broadband can be obtained only by one-time operation, so that the calculation time is greatly saved; The method has great advantages and higher calculation efficiency when being used for processing materials with high spatial resolutions; according to the method, the calculation precision is ensured while the calculation efficiency is relatively high.

The invention provides a colorful anti-counterfeiting film, in particular to a colorful anti-counterfeiting film with colors and patterns formed randomly. The colorful anti-counterfeiting film is a plastic thin film formed by random combination of multiple colors. The color combination of the plastic thin film is randomly formed by feeding plastic materials of various colors into a same plastic film forming machine, rather than being reprinted afterwards. In the process of producing the plastic thin film, the plastic materials of different colors are mixed and added, the plastic thin film which is colorful and varied in color and pattern is made by making use of the characteristic that the materials of various colors cannot be controlled on respective trend and extension shapes during forming, and the formed colors and patterns are uncontrollable and even uncopiable. Thus, counterfeiters are incapable of copying the plastic thin film which is made of the materials of various colors by means of random mixing, and an anti-counterfeiting function is realized.

The present invention describes a method that is comprised of creating a set of synthetic samples that mimic a dynamic process or a specific process step or a variation thereof, to be used to develop multivariate monitoring calibrations and process supervisory control systems. In order to enhance calibration models accuracy and robustness the introduction of randomly spiked, programed spiked, random mixing and orthogonal experimental designed samples is also described. The new method works by using prior knowledge of dynamic processes expressed by their available data and quality control data and using such data to build mixtures profiles that can be used to build synthetic samples that mimic the process dynamics. A novel methodology to overcome calibration developments drawbacks of the prior art can be provided comprising designed synthetic multicomponent samples that mimic dynamic processes and using orthogonal design of experiments or random spikes or programed spikes or random mixing to enhance calibration models performance. With such multicomponent synthetic-samples which approximate accurately the matrix main components composition of real-samples we have demonstrated a novel use of PAT monitoring tools to estimate the dynamic process state (process supervision). The capability to derive multivariate process trajectories with multiparametric analysis of synthetic-samples prepared to span the multivariate design-space of a process allows for process supervisory control strategies to be established during process development and optimization.

The invention provides an ecological colored spun yarn production device and method. In a spinning process, three pieces of acrylic fiber rough yarn colored by a stock solution in three primary colorsincluding red, blue and green are fed by a back roller through three horn mouths which are vertically arranged in parallel, grooves are formed in the axial direction of roller sleeves of back and middle rollers, rubber covered roller sleeves of back and middle rubber covered rollers are sleeved with bulge grooves, the three pieces of rough yarn fed through the horn months are fed sequentially through the groove of the back roller, pressed, output through the groove of the middle groove and pressed, extrusion mixing of acrylic fibers in three different colors is realized, loose and random mixing of a mixed fiber bundle after drafting is immediately realized under the blowing action of positive wind pressure, inside and outside transfer mixing of fibers by weak twist aggregation is realizedunder the gathering action of high negative pressure, and finally, the fibers are directly twisted into yarn under the action of heavy twist of a spinning frame, so that inside and outside transfer mixing of the acrylic fibers in three different colors is realized.

A system and method for controlling the temperature setpoints in a furnace such that a random mixture of slabs with different compositions, sizes, initial temperatures, temperature requirements, and anticipated residence times are all discharged at an appropriate temperature, with emphasis upon ensuring that no slab is insufficiently heated (rejected) per rolling and quality requirements. This is to be accomplished with minimized fuel use. This system can be implemented in a graphical programming environment, where real-time tuning, configuration, logic changes, model replacement, model retraining and other programming changes can be made without interruption of control.

The invention discloses steam condensate pipeline vibration eliminating equipment which comprises a conical pipeline. N guide plates which are radially symmetrically distributed along the circumference of the pipeline are uniformly arranged on the inner surface of the conical pipeline. The steam condensate pipeline vibration eliminating equipment has the advantages that liquid which flows through the pipeline is regularly and radially mixed by the guide plates, the thickness of laminar flow at a pipe wall of the pipeline is reduced, the liquid of the laminar flow at the pipe wall is changed, vortex formed on the surface of the pipe wall can be effectively broken, flow paths have certain geometric shapes, and optional random mixing can be prevented; a small-diameter end of the conical pipeline is communicated with condensates I, an elbow which is used for being communicated with condensates II is obliquely inserted in the conical pipeline, the direction of an output end of the elbow is identical to a flow direction of media which are formed after the condensates I in the conical pipeline and the condensates II are gathered, liquid of the condensates II flows along the axial direction of a medium pipeline and can flow out in a form identical to a flow state of a header pipe, change of the internal flow state of the header pipe can be eliminated, and steam and liquid phase state conversion can be prevented; a medium outlet for the media which are formed after the condensates I and the condensates II are gathered is formed in a large-diameter end of the conical pipeline.

The invention discloses a DWT-SVD-ICA-based digital audio watermarking algorithm. The algorithm is performed according to the following steps: the first step, preprocessing is performed on an original audio signal, and a watermark is embedded in a selected appropriate segment; the second step, when the watermark is embedded, three-level wavelet conversion is performed on the original audio signal, singular value decomposition is performed on an approximate component of the wavelet conversion, and then watermark embedment is completed by utilizing a random mixing method; and the third step, when the watermark is extracted, wavelet conversion and singular value decomposition are performed on the audio signal embedded with the watermark, and then watermark blind detection is achieved by utilizing a negentropy maximization fixed point algorithm. Compared with a traditional ICA-based audio watermarking algorithm, the DWT-SVD-ICA-based digital audio watermarking algorithm is advantageous in that watermark robustness is improved to some extent, that is to say, the watermark robustness is high; and imperceptibility of the watermark can be guaranteed, and blind extraction of the watermark can also be guaranteed.

The invention discloses a method for preparing p-tosyloxymethyl diethyl phosphonate. The method obtains the p-tosyloxymethyl diethyl phosphonate through the following steps: reacting diethyl phosphite and triethylamine with paraformaldehyde at a temperature of 80-110 DEG C, adding an organic solvent after the reaction is completed, cooling to 0-5 DEG C, and adding p-tosylchloride to perform a reaction. The used organic solvent is any one of N,N-dimethyl formamide, tetrahydrofuran, or dioxane, or a mixture mixed by several above solvents with a random mixing ratio. The amount of the organic solvent is 400 g organic solvent per 1 mole p-tosylchloride. The molar ratio of diethyl phosphate, triethylamine, paraformaldehyde and p-tosylchloride is 437:1000:500:500. Paraformaldehyde is added for 2-4 times. The temperature for the reaction performed after p-tosylchloride is added is room temperature, and the reaction time is 10-20 hours. The operation of the method is safe; the product has a correct structure, a high purity, and a high yield; the pollution cost is low; and the method is applicable to industrial production.

A random mixer for making color brick has a mixing drum with filling inlets on its top, discharging outlet on its lower end and electrically controlled air inlet on its lateral wall. Its mixing method includes such steps as connecting the air inlet to compressed air source, electrically connecting the electric controller, turning on the controller, filling particles with different colors, spraying the randomly changed airflow for mixing, and discharging the mixture.

The present invention provides an artificial glacier jade tile, and the weight percentage of the principal raw material is as follows: high-silicon low-temperature and 19-30%, low-temperature sodium porcelain sand 20-40%, water-cleaning black mud 8-21%, water-cleaning sphere dust 12-25%, high-silicon high-temperature sand 14.5-28.5%, and liquefacient 0.5-1%. The weight percentage of the particle size of the powder is as follows: 40 mu screen residue: 40-50%; 60 mu screen residue: 36-39%; and 100 mu screen residue: 9-29%. The present invention adopts the high light transmitting material, the adopted high-proportion (mass percentage is not lower than 80% of the mass percentage of the total component of the tile blank) leads to that the baked product has high light transmitting property. In material distributing the invention adopts a high overlap-grade cylinder for dropping the material and cause that the natural stone grain is generated with random mixing when the small material is dropped with a waterfall type; the product performance is stable and the service lifetime is long; the anticipated profit can be increased for about 100% and the market economic benefit is wide.