110results about How to "Improve structural features" patented technology

The invention relates to an MCM-22 zeolite molecular sieve containing rare earth heteroatoms in a skeleton and a hydrothermal synthesis method thereof. The method is characterized by comprising the following steps: regulating the pH value of the mixed solution of a silicon source and a rear earth source to perform co-hydrolysis and obtain a silicone gel precursor containing rear earth; then adding an organic template agent to obtain a solution A; mixing water, an aluminum source and an alkali source uniformly according to a certain proportion to obtain a solution B; slowly adding the solution B in the solution A dropwise to obtain a crystallization liquid; and placing the crystallization liquid in a hydrothermal kettle, sealing and performing the static hydrothermal crystallation for 5-30 days at 140-180 DEG C to obtain the skeleton rare-earth heteroatom molecular sieve MCM-22 with the MCM-22 crystal structure. The method avoids the phenomenon that only rare-earth heteroatoms are hydrolyzed to generate oxide precipitate; the crystallization process uses the static method without the stirring step, thereby simplifying the operating condition and reducing the production difficulty. In addition, the product has high crystallization degree and high hydrothermal stability and the preparation method has good repeatability.

The invention discloses a hyperspectral image classification method based on a stratified probability model, and belongs to the technical field of image processing. The hyperspectral image classification process comprises the steps that hyperspectral images are preprocessed to obtain feature image data; data labeled by an expert label are picked out from the feature image data and used for training the stratified probability model; training data and test data are separated by the feature image data according to the expert label and projected to the trained stratified probability model, and new feature representation of the training data and the test data is obtained; a classification result is obtained by conducting supervised classification through a support vector machine. Compared with the existing mode of directly conducting support vector machine classification on original hyperspectral data, the hyperspectral image classification method has the advantages that higher in classification accuracy and more homogeneous classification regions are obtained, and can be applied to hyperspectral image classification.

The silicon chip etching process includes three steps including an initial etching, a main etching and a post etching. The main etching step adopts technological gas of CHF3, O2 and SF6 mixture in the flow rate of 10-500 sccm and pressure of 4-100 material; an upper RF power source SFR to ionize the gas mixture filled into the reaction cavity into plasma and a lower RF power source BFR to accelerate the plasma bombarding the surface of the silicon chip. In the step, F* free radical and Si react to form SiFx; SiFx is oxidized by O2 in the gas mixture to form SiOxFy attached to the side wall of the etched channel to constitute a protecting layer and to make the etched side wall smooth and flat. The process is suitable for etching silicon chips of all types, especially polycrystalline silicon layer in line width smaller than 90 nm.

The invention discloses a bifunctional catalyst containing a multi-stage pore EUO molecular sieve and a preparation method thereof. The catalyst comprises 10 to 90wt% of an H-type multi-stage pore structure EUO molecular sieve, 9.9 to 89.9wt% of a matrix and 0.01 to 2.0wt% of a metal active component. The preparation method comprises: mixing multi-stage pore EUO molecular sieve raw powder, the matrix and a pore-expanding agent, adding an acid solution into the mixture, carrying out mixing kneading shaping, carrying out drying and roasting to remove the pore-expanding agent so that a carrier isformed, and dipping the carrier in a mixed solution containing a metal salt for activation to obtain a shaped catalyst. The multi-stage pore EUO molecular sieve is synthesized by crystallization of along-chain silane compound as a crystallization aid and a double-quaternary ammonium salt as an organic template with a double six-membered heterocyclic group substituted alkane structure. The catalyst exhibits good activity and selectivity in the hydroisomerization reaction of a C8 aromatic hydrocarbon and has a good industrial application prospect and economic value.

The present invention discloses an image super-resolution method based on the sparse regularization technology and the weighted guidance filtering. The method is characterized in that: a new sparse coding objective function is constructed by combining the non-local similarity of the image and the manifold learning theory, so that on one hand, similar image blocks are searched in the initial reconstruction image to construct the no-local similarity regularization term, and non-local redundancy of the image is obtained to maintain the edge information, and on the other hand, the local linear embedding method is used to construct the manifold learning regularization term, and the prior knowledge of the structure of the image is obtained to enhance the structure information; and the global error compensation model of the weighted guidance filtering is used to carry out error compensation on the reconstructed high-resolution image to obtain the image with a smaller reconstruction error andhigher quality.

The invention discloses new ultrafine sand concrete. The new ultrafine sand concrete comprises the following components in parts by weight: 1.3 parts of cementing material, 1.5 parts of fine aggregate, 4 parts of coarse aggregate, 0.01 part of high efficiency water reducing agent and 0.32 part of water. The ultrafine sand concrete also contains expanding agent, water reducing agent, grinding aid, surfactant and reinforced fiber. By adopting the coordination of various components, particularly adding the reinforced fiber in the ultrafine sand concrete disclosed by the invention, the technical defect of the prior art that concrete is easy to crack can be overcome, the anti-seepage function of concrete can be enhanced and the cracking of concrete can be inhibited.

The invention is inter hole molecular sieve containing ª‰zeloite secondary unit. The invention uses mixed aqueous solution of hexadecyl trimethyl ammonium bromide (CTAB, basic ion surfactant) and polyethylene glycol capryl phenyl ether (OP-10, nonionics) as template agent, uses precursor ofª‰zeloite secondary unit as silicon-aluminum source, it synthesizes the sieve whose secondary unit has a high heat and water stability and high acidic property through super molecular self-assembling method of surface active agent. The invention has using value.

An airway device 64 includes a hollow tube 51 having a proximal end 65b and a distal end 71, and is formed with a straight section 65 and a curved section 68. The tube 51 can include a proximal portion 65a, which extends from the proximal end 65b for receipt of a face mask 180. When the airway device 64 is placed in a patient's mouth 28, oral cavity 34 and oropharyngeal area 36, the distal end 71 is located at the patient's glottic opening 46 and vocal cords 40. Inflatable cuffs 75, 73 and 73a may be located individually on the tube 51 in selectable single, double and triple cuff embodiments to form seals in the areas of the patient's mouth 28, oral cavity 34, oropharyngeal area 36, glottic opening 46 and vocal cords 40, esophageal opening 48 and inner nasal-passage opening 33.

The invention discloses a method and system for detecting a drug blister package based on machine vision. The method comprises the following steps of step 1, conducting image acquisition by projectingonto a packaged blister by a laser emitter to acquire image information; step 2, conducting image information processing through image enhancement, recovery, encoding and grey level transformation, and conducting noise removal on an image; step 3, conducting image segmentation and threshold setting; step 4, conducting image edge tracking by using a Canny edge detection algorithm to detect the blister edge; step 5, extracting image features, performing threshold setting on the decomposed image, and extracting image features of a corresponding region by a threshold value; step 6, extracting thecolor, position, size and shape of a segmented drug; step 7, selecting the position, size, shape and surface defect size tolerance of the tablet; step 8, saving a standard template, tablet characteristics and a tolerance value; step 9, labeling the defective tablet and the corresponding blister; step 10, finally saving data.

The invention discloses a three-dimensional structured model reconstruction method based on any view angle pictures. The method comprises the following steps of 1, collecting pictures, and forming a training data set; 2, segmenting object parts of the picture to obtain a bounding box of each part; 3, constructing a deep convolutional network model, and extracting a corresponding depth image from the image; 4, constructing a deep network model, and decoding the structural representation of the object; and 5, constructing and training a deep three-dimensional mesh deformation network, and deforming the bounding box into a three-dimensional model with a good structure. According to the method, the object structure representation is deformed, and a topology self-adaption method is used, so a problem that the topology is not changed when a general graph is used for convolution can be solved, and geometric details and the structure information of object recovery are ensured.

The invention belongs to the technical field of fluid equipment, and particularly relates to a large silicon carbide ceramic impeller for a heavy slag slurry pump. The large silicon carbide ceramic impeller comprises a silicon carbide ceramic and a metal framework inlaid in the silicon carbide ceramic; the metal framework comprises a front cover plate, a metal blade and a rear cover plate, the metal blade is arranged between the front cover plate and the rear cover plate in a clamped mode, an assembling gap is reserved between the metal framework and the silicon carbide ceramic, and the assembling gap is filled with resin adhesive. The large silicon carbide ceramic impeller is suitable for long-term conveying of slurry particles with the diameter larger than 8 mm, has the characteristics of being good in impact resistance, suitable for high-pressure use, long in service life of impeller and the like, and can be conveniently connected and fixed with a main shaft.

The invention discloses an automobile spare tire installing structure, which comprises a spare tire pool arranged on a back floor, wherein the spare tire pool comprises a spare tire pool front part and a spare tire pool back part; the spare tire pool front part is of a circular arc structure; the spare tire pool back part extends out in the tangential direction of the circular arc of the spare tire pool front part; the cross section of the spare tire pool back part is in a U shape; an installing support frame used for installing an automobile spare tire is arranged in a connecting position of the spare tire pool front part and the spare tire pool back part; structure reinforcing structures are arranged on the periphery of the installing support frame and at the spare tire pool front part and the spare tire pool back part. The automobile spare tire installing structure has the advantages that the carrying capability is high; the structure is simple; the manufacturing process is simple; good modal stiffness performance is realized; the light-weight requirements can be met.

The invention discloses an acrylamide hapten, artificial antigen, antibody and a preparation method and application thereof. The acrylamide hapten has the molecular structure shown by the formula (I) or formula (II), wherein n is 0-6. The acrylamide artificial antigen has a molecular structure shown by the formula (III) or formula (IV), wherein n is 0-6. The titer of the antiserum prepared from the antigen disclosed by the invention can reach 1:1,024,000, the minimum detection limit is 1-3ng / mL, and the half inhibition concentration is 8.7ng / mL; the generated antibody has high specificity, high sensitivity and high accuracy; and the antigen and antibody disclosed by the invention have wide application prospects in the residue detection of acrylamide in food.

The invention discloses a preparation method of bead-chain-shaped CuMn2o4 / ZnO composition fiber and an obtained product. The preparation method comprises the steps: dissolving DDAB and EDTA into a mixed solvent of ethyl alcohol and glycerol, then adding Zif-8 nanoparticles and evenly stirring to obtain a Zif-8 solution; slowly dropwise adding the Zif-8 solution into a solution prepared from cupricsalt, manganese salt and PVP to obtain a precursor spinning solution and obtaining a final product by electrostatic spinning and thermal treatment. According to the preparation method disclosed by the invention, the surface modified Zif-8 nanoparticles are introduced into the field of preparing CuMn2O4 / ZnO composition fiber by an electrostatic spinning technology for the first time; by means of designing and preparing a precursor spinning solution system, a micro morphology of the composition fiber is effectively regulated. The preparation method disclosed by the invention has the advantagesof easiness in reaction process control, convenience in operation process and good repeatability; the obtained product has the advantages of special micro structure, high yield, excellent physicochemical property and potential application value in the fields of photocatalysis, gas sensing and the like.

The invention discloses a face image generation method based on GANs, and relates to the technical field of computers, and the face image generated by a generator not only can be associated with a random vector, but also can be associated with a feature vector, thereby indicating that the generated image is directly affected by the features of a training image, and improving the interpretability.Gradient disappearance can be effectively avoided, decoding training can be possibly carried out before binary adversarial training is carried out, the gradient disappearance phenomenon caused by JS divergence optimization can be avoided, and then the quality of a generated image is improved. A decoder can learn good image structure features, so that a generator learns better structure features, face distorted images are reduced, and meanwhile, the definition of the images can be learned more reasonably. Due to the fact that feature decoding constraint is carried out, the gradient descent direction is also constrained to a certain extent when the target function is optimized, and fewer epoch numbers can be used in the training process.

An orthodontic flossing implement for facilitating positioning and manipulating of a portion of a length of dental floss into the interdental space between adjacent teeth and proximate to and beneath an orthodontic wire which defines an arch extending between adjacent orthodontic brackets on the teeth. An elongated handle dependently supports an elongated, slender shaft formed as a unit with, and extending from a proximal end of the handle. The shaft is dimensionally smaller in thickness than that of said handle and preferably oriented at an acute angle to the handle. A tip, formed as a unit with, and extending from a second end of the shaft, is oriented at an acute angle to the handle, the tip having an aperture formed therethrough sized to just receive a length of dental floss. The tip with the dental floss positioned through said aperture, is manipulable by said handle to pass beneath an arch of the orthodontic wire and to floss the interdental tissue.

The invention relates to a directional orifice carbide biological ceramic material and a preparation method thereof, in particular to a directional orifice carbide biological ceramic material and a preparation method with the structure characteristics of the biological orifice of artificial simulation. The directional pore carbide biological ceramic material comprises carbide and vasiform orifices with the orifice sizes from 1 to 20 microns directionally distributed in the carbide, the porosity of the orifice is from 20 percent to 70 percent and the orifice structure is anisotropic and connected by millipores. The preparation method is as follows: first applying the method of freezing in directional movement to the colloidal dispersion system containing a ceramic precursor to solidify a dispersant under control and along with a regulated direction and applying a vacuum drying process to get the directional orifice dried gel containing ceramic precursors and implementing the heat treatment on the dried gel to get the directional orifice carbide biological ceramic material. The invention greatly improves the homogeneity of the components in the material, thereby expanding the scope of application of the product. The material can be applied to orthopedics, plastic surgeon, dental surgery, cardiovascular surgery, ophthalmosurgery, ear-nose-throat department, general surgery and the like.

The invention discloses a judicial judgment case information structural processing system, which is applicable to the fields of information extraction and natural language processing. The system includes a judiciary judgement case information structured presentation module, an establishment judiciary judgement case information sequence annotation model module, an attribute trigger word managementmodule and a generation structured judiciary judgement case information module. According to the case types given by the users, the establishment judiciary judgement case information sequence annotation model module constructs a training set of judicial judgment case information sequence tagging and training sequence tagging model, and combines the attribute trigger word set to generate structuredjudicial judgment case information according to the method of generating structured judicial judgment case information. The system of the invention realizes the structured processing of the case information of the judicial judgment according to the case type and the case information of the judicial judgment provided by the user, and aims at providing an effective mode for extracting the structured information from the unstructured judicial judgment text.

The invention discloses a furaltadone metabolite (AMOZ) derivatization hapten, a preparation method of an artificial antigen and an application of the artificial antigen. An active arm introduced by the hapten completely reserves feature structures of AMOZ derivatives; the electron cloud density is not influenced; active groups capable of being coupled to carrier protein are provided; the reaction condition is mild and the operation step is simple; and the prepared artificial antigen can be specifically combined with an antibody, has the characteristics of high potency, high sensitivity, high accuracy and the like, and can quickly detect residues of AMOZ in various products.

A hanging shoe rack for a closet door or other vertical surface. Frame sections have opposite sides provided with support arms that taper from top to bottom for reduced material requirements. The sections are connected by bars and feet having L-shaped tongues fitting in L-shaped slots with long curved surfaces in contact for enhanced strength. The bars that receive hanger brackets have strong curved connections with the frame sides. The tongues on the bars that hook to the brackets are reinforced by tabs that fit closely in notches in the brackets to resist side to side sway.

Embodiments of the invention disclose an active texture method for linear array binocular 3D imaging. The active texture method comprises the following steps: receiving an external trigger control signal with frequency of 2f, generating a first trigger signal with frequency of f and a second trigger signal with frequency of 2f according to the external trigger control signal, and projecting progressively increasing grating stripe light to a photographed object by a 1 / f periodic trigger structure layer according to the first trigger signal; collecting the photographed object by a 1 / 2f periodic trigger camera according to the second trigger signal; and outputting an original image in which images having grid textures and images having no grid textures are alternatively arranged. According to the active texture method disclosed by the invention, the textures of the progressively increasing grating stripe light have the advantages of high brightness and obvious architectural features and can satisfy the requirements on matching features in 3D information calculation; and in addition, in the output original image, the images having grid textures and the images having no grid textures are alternatively arranged, so that by separating the original image, complete 2D images having no grid textures and complete images containing the matching features and having the grid textures can be obtained.

The invention relates to the technical field of pet appliances, in particular to a pet feeder which comprises a base, a material storage barrel, a grain feeding component, a driving component, a feeding basin and a controller, the material storage barrel, the grain feeding component, the driving component and the feeding basin are sequentially connected on the base from top to bottom, a shell is connected on the base, a positioning column is arranged at the bottom of the base, a weight sensor is connected at the bottom of the material storage barrel and / or the feeding basin, the grain feeding component is positioned in the shell, the material storage barrel is detachably connected with the shell, and the feeding basin has a closing position and an opening position under the action of the driving component. According to the pet feeder, surplus grain in the material storage barrel and the feeding basin are weighed, feeding amount of each time is weighed, surplus grain is weighed, structure of the feeder is greatly simplified, structural design difficulty is reduced, and cost is greatly reduced.

The invention discloses preparation methods and application of semicarbazide SEM derived hapten and artificial antigen. An active arm introduced by the hapten integrally keeps a characteristic structure of an SEM derivative and has no influences on electronic cloud density; the hapten also has an active group capable of being coupled with a carrier protein; reaction conditions are moderate and operation steps are simple; the prepared artificial antigen can be specifically combined with an antibody, and has the characteristics of high valence, high sensitivity, high accuracy and the like; and residues of semicarbazide SEM in various products can be rapidly detected.

The invention relates to a complete technology for treatment and disposal of sludge. The complete technology comprises the following steps of (1) environment-friendly sludge cleaning: cleaning the sludge by an environment-friendly cutter suction method, and centrally treating the sludge; (2) pretreating of sludge slurry: removing foreign matter in the sludge by gravity precipitation and a grillagemachine, enabling the sludge slurry after removal of the foreign matter to flow into a conditioning tank, and naturally settling the sludge slurry; (3) deep conditioning of the sludge slurry: enabling an agent adding system to add a flocculant into the pretreated sludge, mechanically stirring, fully reacting, and completing flocculation and dewatering of the sludge slurry; pumping the slurry after flocculation into a pipeline stirring machine, and enabling the agent adding system to continuously add a solidifying agent; (4) modifying of the sludge: sending the sludge after deep conditioning into a double-shaft continuous type uniform mixing machine, enabling the agent adding system to continuously and quantitatively add a modifying agent, and adjusting the pH (potential of hydrogen) value, total content of nutrients, and porosity of ventilation; (5) curing. The complete technology has the advantages that the technology is simple, and the cost is low; the sludge can be truly properly treated and resourcefully utilized, and the development concept of circular economy is met.

The invention discloses a fast immunological detection method for directly detecting furaltadone metablolite 3-amino-5-morpholinomethyl-2-oxazolidinone (AMOZ). The method comprises preparation and application of an AMOZ half antigen, an artificial antigen, an antibody and the like. The AMOZ half antigen has a molecular structure shown as a formula (I) or a formula (II), and the AMOZ artificial antigen has a molecular structure shown as a formula (III) or a formula (IV). An antibody prepared from the antigen can be used for specifically identifying AMOZ. The valence of the antibody is 1:64000, the lowest detection limit is 0.852ng / mL, and the half inhibiting concentration is 15.26ng / mL. The antibody can be directly applied to the detection of AMOZ. By adopting the method, the defect of derivatization of AMOZ in the conventional enzyme linked immunosorbent assay method is overcome; the method is easy, convenient, rapid and low in cost. The antigen and the antibody can be widely applied to residue detection of AMOZ in foods.

The invention discloses a preparing method of a composite multi-layer multi-functional wall heat-preserving material. The heat-preserving material comprises a protective outer layer, a heat-preserving layer and a protective inner layer. The inner surface and the outer surface of the heat-preserving layer are covered with the protective outer layer and the protective inner layer respectively. The side face of the side, opposite to the heat-preserving layer, of the protective inner layer is of a water ripple or sawtooth structure. The preparing method includes the following steps of (1) preparing the heat-preserving layer, (2) preparing protective inner layer mixed materials, (3) preparing protective outer layer mixed materials, (4) preparing a heat-preserving material and (5) polishing and forming. The preparing method is simple in process procedure and convenient to operate; the prepared heat-preserving material of a three-layer composite structure has excellent fire resistance, heat preservation, weather resistance and anti-compression performance, and by means of the water ripple or sawtooth structure of the inner-layer wall, the composite multi-layer multi-functional wall heat-preserving material can be combined with a wall well. The composite multi-layer multi-functional wall heat-preserving material prepared in the method is obvious in structural feature, excellent in comprehensive effect, low in cost and durable and has wide market prospects.

The invention discloses a dual-function catalyst applied to isomerization of C8 aromatic hydrocarbons and a preparation method of the dual-function catalyst. The catalyst is prepared from the following components: 10-89.9wt% of H type hierarchical-pore structure EUO molecular sieve, 9.9-89.9wt% of matrix and 0.01-2.0wt% of metal active component. The preparation method comprises the following steps: mixing the hierarchical-pore EUO molecular sieve, the matrix and a pore-enlarging agent, then adding an acid solution, kneading and forming, drying and roasting to remove the components such as thepore-enlarging agent to form a carrier, then dipping the carrier in a mixed solution containing metal salt and activating to obtain a formed catalyst. The hierarchical-pore EUO molecular sieve is crystallized and synthesized by taking a long-chain silane compound as a crystallization promoting agent and taking biquaternary ammonium salt with an alkane structure substituted by a di-penta-heterocycle group as an organic template agent. The catalyst shows favorable activity and selectivity in hydroisomerization reaction of C8 aromatic hydrocarbon and has a good industrial application prospect and a good economic value.

The invention discloses a magnetic ring surface defect detection device, which is characterized by comprising a conveying belt, wherein the conveying belt is used for conveying magnetic rings to be detected; a detection position and a rejection product removal position are arranged in a way of corresponding to the conveying belt; a sensor, a light source and a camera are arranged in a way of corresponding to the detection position; a mechanical hand is arranged in a way of corresponding to the rejection product removal position; a conveying belt driving mechanism, the sensor, the light source,the camera and the mechanical hand are connected with one industrial computer; the industrial computer controls the starting and the stopping of the conveying belt according to signals fed back by the sensor, and judges whether the magnetic rings are qualified products or defect products according to self machine vision software; if the magnetic rings are defect products, the mechanical hand in the next station is driven to act; the defect products are removed; if the products are qualified products, the magnetic rings realize the automatic material turning on the conveying belt; then, the magnetic rings enter the detection region for detecting the other end surface; the detection treatment is performed. The invention also discloses a magnetic ring surface defect detection method.

The invention discloses a preparation method of a loaded nano copper mesoporous graphite carbon nitride negative electrode material and a material. The method comprises dispersing g-C3N4 material in deionized water to obtain g-C3N4 dispersion, adding aqueous solution of divalent copper salt dropwise to g- C3N4 dispersion and stirring at room temperature for a period of time to obtain a mixed solution; dropwise adding alkali metal hydroxide aqueous solution into the mixed solution, adjusting the pH value, stirring for a period of time, and then dropwise adding reductant aqueous solution to reduce the divalent copper salt to elemental copper; After filtration, washing and drying, obtaining the loaded nano-copper mesoporous graphite carbon nitride anode material. Compared with the prior art,the mesoporous graphite carbon nitride (g-C3N4) is prepared by a thermal polymerization method, and the microstructure and the electronic state of the material are changed by doping metal, the electric conductivity is enhanced, the electrons are uniformly distributed on the surface of the material, the polarization is reduced, and the large current charging and discharging performance is improved.

The invention relates to an aggregate interface enhancer used for asphalt concrete and a preparation method thereof. The aggregate interface enhancer is prepared from, by weight, 10-50% of an elastomer, 30-50% of synthesized resin, 5-30% of fused oil, 0-0.5% of a color master batch, and 0.25-1.25% of an antioxidant. The preparation method includes the steps of: 1) successively adding the elastomer, the synthesized resin, the color master batch and the antioxidant into a stirring machine, stirring the materials, adding the fused oil, continuously stirring the materials uniformly, and allowing the mixture to stand for 24 h at normal temperature; 2) at 110-180 DEG C, uniformly mixing and melting the mixture through a spiral machine, performing extrusive shaping, and cooling and cutting the product to obtain a cylindrical granular product. Through the high-temperature melting, the aggregate interface enhancer is high in viscosity; when being mechanically stirred with heated aggregate, theenhancer is uniformly dispersed and has excellent combination property with the aggregate. The enhancer is suitable for rolling-type asphalt concrete and pouring-type asphalt concrete with enhanced aggregate interface, thereby improving durability of the asphalt concrete.