240results about How to "Overcome instability" patented technology

The invention discloses a multifunctional concrete structure endurance protective agent as well as the preparation and application method thereof. The protective agent provided by the invention contains the following ingredients of: an organic / inorganic composite fluorosilicone-acrylate copolymer, lithium silicate, sodium silicate, lithium molybdate, sodium tetraborate, sal glauberi, 1,2-aminoazophenylene, nanometer titanium dioxide, anhydrous ethanol and water. The protective agent can penetrate inside concrete, wherein a densification ingredient can minimize internal holes and cracks to raise the compactness of concrete, and a rust-resistant ingredient can penetrate into concrete and be adsorbed on the surface of steel bar so as to passivate and protect the steel bar; the low-surface energy silicon fluoride ingredient can be solidified to form a cured film on the surface of concrete so as to endow the protective agent with the hydrophobic performance; a nanometer ingredient can endow the cured film layer with properties of resisting ultraviolet and ageing and improving the organic polymer performance as well as the self-cleaning performance. In addition, hydroxy generated from the hydrolysis of siloxane group can perform a condensation reaction with hydroxy on the surface of concrete to produce chemical bond, so as to raise the anchoring strength between the film and concrete and improve the interface combination. The protective agent provided by the invention can be widely applied in various concrete structure engineering protections to raise the service life of concrete.

The present invention relates to a method and a system for detecting and tracking a multi-pose face. The method includes the following steps of :1) decoding an image acquired by a camera, and restoring the decoded image into a frame picture, and performing pre-process of illumination compensation on the frame picture; 2) acquiring a facial picture from the pre-processed frame picture; 3) determining whether a face in the facial picture is a false face or not, if not, predicting a moving track of the face, and tracking the face and judging whether the track is missing or not according to a predicted result, if not, positioning and acquiring a location of a next facial picture in a next frame picture according to the predicted result, and repeating the operations from step 1) to step 3), if yes, selecting five facial pictures with optimal rotation angles and definitions; and discarding the facial picture if the face is a false face. The method and the system provided in the invention can overcome influences of instability of facial poses and changes in ambient light, distinguish the facial poses in a real-time manner and screen out facial pictures with optimal poses.

The invention discloses a deoxyribonucleic acid (DNA) sequencing device based on a graphene nanopore-microcavity-solid-state nanopore and a manufacturing method. The manufacturing method comprises the steps of etching an inverted-pyramid-shaped microcavity in the upper part of a silicon on insulator (SOI) silicon wafer; etching a columnar hole on the lower part of the SOI silicon wafer, wherein the tower top of the inverted-pyramid-shaped microcavity is the solid-state nanopore; etching the graphene on the upper part of the inverted-pyramid-shaped microcavity; etching the graphene nanopore in the center of the graphene, wherein a platinum electrode and a longitudinal weak current measurement device as well as a power supply form a longitudinal weak current measurement loop, and a gold electrode and a transverse weak current measurement device as well as the power supply form a transverse weak current measurement loop; etching an inverted cone cavity in the front side of the SOI silicon wafer; etching a vertical columnar hole at the back of the SOI silicon wafer; corroding an oxidized buried layer on the SOI silicon wafer to form the solid-state nanopore; transferring the prepared graphene to the surface of the SOI silicon wafer; etching the graphene nanopore coaxial to the fixed nanopore in the center of the graphene; and enabling a chip, the power supply and an ampere meter to form a circuit so as to realize the sequencing of the DNA by testing the change of current intensity in the circuit when the DNA penetrates through the nanopore.

A footwear assembly requires a wearer to adjust in order to maintain stability while standing, walking, etc. The assembly includes an outer sole having a flexible shell surrounding a hollow interior substantially filled by a plurality of unconnected, substantially non-deformable particles. Foot pressure applied to the outer sole results in movement of the plurality of particles, and the resiliency of the shell allows it to assume a variety of different configurations based in part on the portion to which pressure is applied. The resiliency of the shell further facilitates normal biasing thereof and the particles therein into a normal, non-compressed orientation. The tendency of the outer sole to assume a variety of different configurations will, in some circumstances, require a wearer to adjust the corresponding foot and / or leg in order to maintain normal stability, at least when foot pressure is applied to the outer sole.

The invention discloses a rapid object recognition method for a mobile robot based on deep learning, and the method comprises the following steps: 1), the obtaining of a mobile image; 2), the preprocessing of image data; 3), the extracting of the features of the image; 4), image prediction output; 5), environment constrained optimization; 6), image recognition output. Through the unified integration of detection and recognition results, the method overcomes the shortcomings of the complexity and instability of a conventional object recognition system which needs to employ an object. Through a multilayer residual error network design and the generation of environment gravity constraint conditions, the method irons out the defect that an integrated object recognition system is poor in accuracy. The integration of detection and recognition tasks can guarantee the processing efficiency of a system, and improves the sensing capability of the robot in a moving process.

The invention provides a nontoxic, anti-heat shrinkable polyvinyl chloride material, comprising the following components in parts by weight: 100 parts of polyvinyl chloride resin, 20-30 parts of filling, 10-60 parts of plasticizer, 1-2 parts of lubricating agent, 2-12 parts of compound stabilizer, 3-10 parts of fire retardant and 10-15 parts of anti-heat shrinkable agent. The invention also provides a manufacturing technology of the nontoxic, anti-heat shrinkable polyvinyl chloride material. The nontoxic compound stabilizer and the anti-heat shrinkable agent are added to the nontoxic, anti-heat shrinkable polyvinyl chloride material, which dramatically improves various thermostabilization performances of the polyvinylchloride material, especially the anti-heat shrinkable performances. The raw material of the invention has low cost and is environment friendly, thus having wide application prospect.

The invention discloses a planting method of a compound ecological tea garden, comprising the following steps of: (1) planting garden trees along the surrounding area of a tea garden; (2) planting rare or endangered tree species along the surrounding area of the tea garden; (3) planting leguminous crops between the rows of young tea trees and around the adult tea trees; (4) applying organic fertilizer and bio-fertilizer in the tea garden; and (5) carrying out crop straw covering in the tea garden. Through carrying out combination of multi timing sequences and multistage recycling of materials, the planting method of the compound ecological tea garden has the advantages of overcoming the vulnerability and the instability of the ecosystem of the tea garden, enhancing the resource utilization efficiency, enriching the biocoenosis of the tea garden, keeping the ecological balance, restraining injurious insect and realizing the low consumption, the safety, the high quality and the high efficiency of planting the tea trees.

This invention is directed to a process for electrolessly metallizing an article, as well as to a plating bath and the subsequent plated substrate. The process comprises contacting the surface of an article with an electroless metallizing bath which may be essentially free of toxic and / or heavy metals.

The invention discloses a protective agent for a bridge with a steel structure, a preparation method thereof and application thereof. The protective agent comprises the following components: an organic / inorganic composite fluorosilicone styrene polymer, lithium silicate, sodium molybdate, benzotriazole, nanometer titanium dioxide, sodium gluconate, ethanolamine, absolute ethanol and distilled water. Corrosion inhibiting ingredients contained in the protective agent can be attached to the metal surface of the bridge with the steel structure, so that a compact protective film is formed on the metal surface due to a passivating reaction for corrosion inhibition and corrosion prevention; a low-surface energy fluorosilicone styrene polymer component contained in the protective agent can be cured to form a film for playing the hydrophobic and protective roles; a nanometer component can improve the performance of ultraviolet aging resistance of a film layer, improve the performance of the polymer and provide the excellent self-cleaning performance and the like for the cured film; and hydroxyl generated by hydrolyzing siloxane groups can perform a condensation reaction with hydroxyl on the surface of the bridge with the steel structure to generate a chemical bond so as to improve adhesive power between the film layer and a matrix material and improve interface bonding. The protective agent is high in stability, non-toxic, environment-friendly, multiple in functions and easy to construct, can be widely used for the protection of the structural engineering of various bridges with the steel structures, and is favorable for improving the service life of the bridge with the steel structure.

The invention provides a combined sewage treatment device which integrates the activated sludge process and the biofilm process, organically combines the advantages of the suspension growth technology and the attached growth technology, combines anaerobic and aerobic properties in one device, leads the two to promote each other and improves the sewage treatment capacity and the treatment efficiency. The combined sewage treatment device is characterized in that the combined sewage treatment device comprises a biological phosphorus removal zone, a denitrification zone, a nitrification zone and a sludge-water separation zone positioned in a tank body structure, the biological phosphorus removal zone is connected with a sewage inlet pipe, the sludge-water separation zone is provided with a water outlet pipe, a residual sludge discharge pipe and a return sludge hole, and the return sludge hole leads to the biological phosphorus removal zone and / or the denitrification zone; and a rotating biological disk is arranged in the nitrification zone.