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 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 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 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.

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 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.