Magnetic suspension tunnel internal zone dividing method

Method for acquiring, encrypting and binding intelligent device information

The invention discloses a method for acquiring and encrypting and binding Android equipment information, which is characterized by comprising the following steps of: extracting a plurality of pieces of static hardware information of user Android equipment, including a hardware manufacturer, an equipment serial number, a baseband version, an MAC (Media Access Control) address, an SDK (Software Development Kit) version number and a mobile equipment identification code (MEID), and encrypting the data by using an MD5 (Message Digest 5) encryption algorithm; and the encrypted data and other data are uploaded to a server. According to the method, the privacy of the user is protected by encrypting the user equipment information, and meanwhile, the user equipment can be identified.

Wind turbine generator layout optimization method based on improved NSGA-III

According to the wind turbine generator layout optimization method based on the improved NSGA-III, wind turbine generator layout optimization is carried out on multiple targets of the annual energy output, the total investment cost and the noise of a wind power plant, the speed and the solution quality are more effective than those of the NSGA-III, multi-population co-evolution is achieved, and the wind turbine generator layout optimization method based on the improved NSGA-III is more efficient. The MPNSGA-III optimal solution is a comprehensive result of multiple populations, the defect that a local minimum value is prone to occurring when a multi-objective optimization problem is solved is avoided, the diversity of the solutions is kept, the MPNSGA-III optimal solution is the comprehensive result of the multiple populations, and the wind turbine generator layout with better benefits can be obtained. The wind turbine generator layout optimization results of the NSGA-III and the MPNSGA-III ...

Technology for secondary recovery of gold from flotation tailings

The invention particularly discloses a technology for the secondary recovery of gold from flotation tailings, which comprises the following steps: conducting cyclone classification on ore pulp of the flotation tailings, grinding the cyclone-classified grit as crude ore, conducting ore pulp mixing on the ground ore powder, conducting cyanide leaching of gold, absorbing the leached gold by active carbon, desorbing gold-loaded carbon after saturated adsorption, and electrolyzing the desorption solution after desorption, thus obtaining gold powder. Unlike conventional processes, the technology only needs investment on the power cost of equipment and material cost instead of implementing pit discharging and pit loading by staff and vehicles, therefore, compared with the conventional treatment method, the technology has the characteristics of low cost, large treatment quantity, continuous operation and the capability of enhancing the ore dressing recovery rate by floatation technology to the ...

Installing method for rail beam structure of magnetic suspension tunnel shoreside section

Fast gold-leaching process by CIP process

The invention belongs to all cyaniding carbon paste adsorption method gold extraction technology, and in particular relates to carbon paste method quick gold extraction technology. The technology comprises the steps of pulping, leaching and adsorption, and is characterized in that the pulping concentration is between 45 and 48 percent; the paste is stirred at the speed of between 250 and 300 revolutions per minute under the condition of pulping; the leaching temperature is controlled to be between 35 and 38 DEG C; and the pH value is between 10 and 12. The technology obviously reduces the pulping time and the leaching time, reduces equipment investment of a leaching tank, consumption of cyanide, the enterprise cost and the energy consumption, and increases the benefit.

Reversible database watermark embedding and extracting method based on integral wavelet transformation

The invention discloses a reversible database watermark embedding and extracting method based on integral wavelet transformation. In a database carrier, numeric attribution values are selected randomly to form a data set, the data set is divided into data subsets of the same size, and accordingly data arrays are formed; according to an overflow prevention mechanism, type groups where the data arrays belong to are determined; furthermore, watermark hiding models are adopted for the data arrays of different types so that watermarks of different intensities are embedded into wavelet domains of the data arrays to form a watermark database; finally, the watermarks are extracted by judging parity of expressions, and a watermark carrier coefficient vector translates reversely in a space formed by orthogonal vectors to restore the database carrier. According to the method, watermark information can be evenly distributed in each part of data in a database to achieve the aims of weakening influences ...

Video deblurring method based on spatial-temporal feature fusion and bidirectional recurrent neural network

The invention discloses a video deblurring method based on spatial-temporal feature fusion and a bidirectional recurrent neural network. The video deblurring method comprises the following steps: S1, dividing a fuzzy video into basic sequence units; s2, building a video deblurring model which comprises a forward unit, a reverse unit and a spatial-temporal feature fusion reconstruction module; s3, calculating loss of an input fuzzy video and a clear video image L1 corresponding to the input fuzzy video, and performing back propagation to train the deblurring model; and S4, inputting the fuzzy video into the trained deblurring model, and outputting and storing the generated reconstructed clear video. The invention provides a frame structure based on a recurrent neural network. Two-way modeling is carried out on time sequence features between video frames; and the spatial-temporal feature fusion reconstruction module captures the time dependency relationship between the adjacent frame and ...

Tensile adjustable connection mechanism for orbit beam

The invention provides a tensile adjustable connection mechanism for railway girders, which comprises a top plate, a bolt, a fastening nut, a pedestal and a fastening screw, wherein the bolt is connected with the pedestal through a screw thread; the fastening nut is screwed on the screw thread of the bolt and is connected with the pedestal through the fastening screw; and the pedestal is connected with a lower pre-embedded plate. The mechanism also includes a lower sliding plate with one convex end face, an upper sliding plate having one concave end face, and an upper buckle plate having a support surface, wherein the other end face of the upper sliding plate is disposed on the support surface; the upper buckle plate is fixedly connected with a top plate; a flange is arranged on one end of the bolt and has a concave end face and a lower convex surface; the lower sliding plate is disposed between the top plate and the bolt through the rotatable matching between the convex surface of the ...

Magnetic suspension tunnel internal partitioned form

Noise-considered multi-objective optimization method for layout and wiring of offshore wind plant

Along with expansion of an offshore wind farm, most wind turbine generators do not consider noise. When the high-dimensional multi-target problem of a wind power plant is solved, the effect of a traditional optimization algorithm is limited. The invention provides a double-layer high-dimensional multi-objective optimization method, and in the method, the position of a wind turbine generator and a cable topological structure can be optimized at the same time, and noise is additionally reduced. The outer layer is expressed as a constraint high-dimensional multi-objective optimization problem so as to obtain the optimal wind power plant layout, and four optimization objectives are the annual energy output, the electric energy quality, the total investment cost and the noise respectively; and then a multi-population non-dominated sorting genetic algorithm-III in different environments is proposed to optimize an outer layer model. The inner layer is a multi-constraint optimization problem, the ...

Tensile adjustable connection mechanism for orbit beam

The invention provides a tensile adjustable connection mechanism for railway girders, which comprises a top plate, a bolt, a fastening nut, a pedestal and a fastening screw, wherein the bolt is connected with the pedestal through a screw thread; the fastening nut is screwed on the screw thread of the bolt and is connected with the pedestal through the fastening screw; and the pedestal is connected with a lower pre-embedded plate. The mechanism also includes a lower sliding plate with one convex end face, an upper sliding plate having one concave end face, and an upper buckle plate having a support surface, wherein the other end face of the upper sliding plate is disposed on the support surface; the upper buckle plate is fixedly connected with a top plate; a flange is arranged on one end of the bolt and has a concave end face and a lower convex surface; the lower sliding plate is disposed between the top plate and the bolt through the rotatable matching between the convex surface of the ...

Lossless image information hiding method for chain type vector space hiding model

The invention discloses a lossless image information hiding method for a chain type vector space hiding model. The method comprises the following steps: partitioning an original gray scale image carrier into image blocks in a non-overlapping way, performing integer wavelet transform on each image block, extracting the high-frequency coefficient of each image block, and performing dimension reduction to form a one-dimensional vector; projecting the vector into a vector space A, and adjusting the coefficient value of the vector to form a new vector so as to realize information hiding; projecting the new vector into a vector space B, and adjusting the coefficient of the vector to generate a new vector so as to realize information hiding; projecting the new vector into the vector space A; and performing the steps circularly till current information is fully hidden or influences the quality of the image blocks including information. According to the method, watermark information can be uniformly ...

Method for recovering gold from molybdenum concentrate

The invention relates to a method for recovering gold from molybdenum concentrate, which comprises: firstly, soaking the molybdenum concentrate into an alkaline solution with the pH value between 12 and 14 for 6 to 8 hours; and secondly, performing cyanidation leaching, adsorption and after-treatment on the molybdenum concentrate after alkaline leaching for recovery of the gold. The method fully utilizes mineral resources on the premise of basically not influencing concentrate after cyanidation and gold extraction, is simple, has high gold recovery rate which can basically reach more than 85 percent, and has obvious economic benefit.

Gold secondary recovery method from cyaniding gold concentrator tailings

The invention relates to a method for secondary gold recovery from cyanide gold tailing. The method comprises the following steps: preparing the cyanide gold tailing into pulp with the concentration of 30-35%, stirring, carrying out flotation, and adopting agents such as aerofloat, xanthate and pine camphor oil to recover gold during the flotation, wherein, the addition amount of the aerofloat is 35-40g/t, the addition amount of the xanthate is 160-180g/t and the addition amount of the pine camphor oil is 6-8g/t. The method combines carbon pulp and the flotation process to make up for each other, further improves the gold recovery rate, reduces the metal losses, minimizes the tailings grade under the existing condition, maximizes the benefits, has short construction period, low investment, fast action and significant economic benefit, and can earn XX yuan per month for an enterprise if an average of 0.15g gold can be recovered from each ton of tailings.

Spatial variable kernel sensing blind super-resolution reconstruction method based on real degradation

The invention discloses a remote sensing image super-resolution reconstruction method based on spatial variable degradation perception. The method comprises the following steps: S1, obtaining a high-resolution remote sensing image data set; s2, constructing an image degradation model; s3, constructing a blind super-division model of spatial variable degradation perception; s4, training a remote sensing image blind super-division model based on spatial variable degradation perception; and S5, reconstructing a high-resolution remote sensing image through the trained blind super-resolution model. The blind super-resolution reconstruction task is decomposed into the degradation process and the reconstruction process, on one hand, the complex degradation process of the image is simulated, on the other hand, the degradation conditions of different spatial positions of the image are considered, the degradation kernel closer to the real world is evaluated while the perception degradation range ...

Digital electronic technology course multifunctional learning board

The utility model discloses a multifunctional learning board for a digital electronic technology course. The circuit comprises an input module, a combinational logic module, a sequential logic moduleand an output module. Only a power line and a ground wire are connected together among the modules to realize unified power supply. The input module comprises a switching value input, a manual clock generation unit and a continuous clock generation unit. The output module comprises an LED lamp and a seven-segment nixie tube. The combinational logic module comprises a gate circuit, a decoder, a data selector, an encoder, a numerical comparator and an adder. The sequential logic module comprises a trigger, a counter and a bidirectional shift register. The utility model has the advantages that the experiment operation is more convenient, the circuit connecting time is shortened, the error probability of the connecting circuit is reduced, students can have more energy to understand, design andverify ...

Hyperspectral image reconstruction method based on dual-path fusion

The invention discloses a hyperspectral image reconstruction method based on dual-path fusion. Firstly, a training set and a test set are constructed by preprocessing a data set; and then constructing a reconstruction model with a double-path structure, including shallow feature extraction, double-path depth feature extraction, and adaptive feature fusion and reconstruction. And optimizing network parameters by minimizing loss, and storing an optimal reconstruction model weight. And finally, inputting the RGB image into the optimal reconstruction model, and outputting a generated hyperspectral image. According to the method, a double-path structure is designed in feature extraction according to the features of the spatial local similarity and the spectral self-similarity of the hyperspectral image, so that targeted extraction is realized, the reconstructed image is clearer, and the texture is more obvious. Besides, the self-adaptive fusion module can measure the importance of the spectral ...

Method for treating cyanogen-containing tailing slurry produced in all-sliming carbon-in-pulp cyanidation process

The invention belongs to the technical field of all-sliming carbon-in-pulp cyanidation processes, and in particular discloses a method for treating cyanogen-containing tailing slurry produced in all-sliming carbon-in-pulp cyanidation process. The method comprises the steps of performing water-slurry separation on cyanogen-containing tailing slurry, filter-pressing separated slurry to be dry residue, directly discharging the dry residue added with water and returning cyanogen-containing wastewater obtained after separation to cyanidation flow for recycling after removing impurities and oil in the cyanogen-containing wastewater. The method is simple and convenient to operate, and returns the cyanogen-containing wastewater to the cyanidation flow for recycling because the cyanogen-containing wastewater contains CN-and OH-, thereby realizing the zero emission of the cyanogen-containing wastewater and reducing pollution on the one hand and reducing the amount of sodium cyanide used in the cyanidation ...

Multi-constraint wait-free hybrid running water scheduling modeling method based on idle matrix

The invention discloses a multi-constraint wait-free hybrid running water scheduling modeling method based on an idle matrix. The multi-constraint wait-free hybrid running water scheduling modeling method comprises the following steps: firstly, carrying out constraint preprocessing: for a constraint which exhibits processing unit skipping, setting the processing time of a task on a unit as 0, adding a big penalty term when a target function value is calculated for the constraint which exhibits preorders or conversion forbidding, and adding the preparation time after previous task processing time for preparation time which exhibits sequential dependency; secondly, for a stage with a parallel machine, processing by adopting a soft compression regulation method based on a Gantt chart to construct the idle matrix; and finally, on the basis of the idle matrix, constructing a scheduling model according a scheduling target. A wait-free hybrid running water scheduling problem with the complex constraint ...