68results about How to "Overcome application flaws" patented technology

The invention relates to a ferrum (Fe)-based amorphous alloy material, in particular to a Fe-based amorphous alloy strip for treating printing and dyeing wastewater and a preparation method thereof. According to the conventional literatures and technical data, an alloy component with Fe-based amorphous alloy strip forming capacity is selected; and general requirements show that the selected alloy component comprises more than 50 percent of Fe atoms, preferably 60 to 85 percent, so the reduction decoloring capacity of the Fe atoms is exerted. The amorphous alloy strip is obtained by adding a small amount of other elements and performing rapid solidification by using melt spinning equipment. The decrystallization of zero-valent Fe is realized by preprocessing technology; the decoloring capacity of the Fe atoms is kept; the rusting consumption of the Fe in the wastewater treatment process is effectively reduced; the strip is repeatedly and persistently utilized on the premise of guaranteeing the decoloring rate; the technical defects and the application defects in the conventional method for treating the printing and dyeing wastewater by using reducing Fe powder or waste cast Fe scraps are overcome; and the Fe-based amorphous alloy strip relates to the field of potential application of decrystallization technology in the industrial field, and has an extremely high application prospect.

The invention provides a printing and dyeing wastewater treatment method. An iron-base alloy raw material being capable of forming an amorphous alloy strip is employed in the method and is processed to form an iron-base amorphous alloy strip. The iron-base amorphous alloy strip then is embrittled and smashed to obtain iron-base amorphous alloy powder. The iron-base amorphous alloy powder is used in printing and dyeing wastewater treatment. Compared with the prior art, the iron-base amorphous alloy powder has a high specific surface area and can form a nano porous structure on surface when being reacted with printing and dyeing wastewater. The nano porous structure can not only increase the specific surface area of the iron-base amorphous alloy further but also has the effects of adsorb azo dyes and reaction products during a reaction process, thereby increasing efficiency of the iron-base amorphous alloy powder in printing and dyeing wastewater treatment.

The invention relates to an elastomer material and in particular relates to high-abrasion-resistance polyurethane elastomer and a preparation method thereof. The high-abrasion-resistance polyurethane elastomer comprises the following materials in percentage by mass (in terms of the weight of prepolymer): 45%-79% of polyether polyol, 1%-5% of abrasion resisting powder, 10%-20 of chain extender, and 10%-30% of polyisocyanate. The preparation method of the high-abrasion-resistance polyurethane elastomer comprises the following steps of: adding the polyether polyol to a three-necked bottle; heating up and dehydrating in vacuum; synthesizing the prepolymer by adding 10%-30% of polyisocyanate after cooling; equally dividing the synthesized prepolymer into a group A and a group B, wherein abrasion resisting powder is added to the prepolymer A, and the abrasion resisting powder is not added in the prepolymer B; respectively adding the components A and the B to a chain extender and uniformly stirring; pouring a mixture to a mould for vulcanization, de-moulding to obtain a product, then placing the product to an oven for vulcanization; and respectively carrying out standard test after vulcanizing for 5-10 days at the room temperature. According to the high-abrasion-resistance polyurethane elastomer and the preparation method thereof, ultra-high molecular weight ethylene powder is adopted for improving the abrasive resistance of the elastomer and tensile strength, so that the application defects at the existing stage are overcome, and the application field of polyurethane is broadened.

The invention relates to the field of digital image measurement, and proposes a plant three-dimensional measurement method and system based on PTZ camera system parameters and video frames. The method comprises the steps: S1, the calibration of PTZ camera system parameters: an axial image distance, image space and object space corresponding coefficients, an image shift rate pitching value fitting equation and coefficients; S2, a corresponding image point rectification model: an inter-frame image vector conversion model, an optical axis movement vector, a corresponding image point two-dimensional rectification matrix, and differential optimization verification; S3, point cloud world coordinate algorithm: a corresponding image point three-dimensional matrix, an inter-frame double-optical-system vector projection relation model, a PTZ camera system movement vector measurement model, three-dimensional point cloud coordinate obtaining, and a gray scale material correction factor; S4, plant local measurement method. The system comprises the following parts: S1, a PTZ camera system parameter obtaining module; S2, a corresponding image point rectification module; S3, a three-dimensional measurement module; S4, a plant local measurement module. Compared with other digital mapping technologies, the method does not need an object space control point, is strong in environmental adaptation, is high in equipment compatibility, and reduces the cost.

The invention provides a functionalized polyethylenimine-grafted porous nano-fiber adsorption material and preparation thereof. The functionalized polyethylenimine-grafted porous nano-fiber adsorption material is characterized by being prepared from porous polyacrylonitrile nano-fibers; the porous polyacrylonitrile nano-fibers are grafted with functionalized polyethylenimine after being hydrolyzed. After the porous polyacrylonitrile nano-fiber material is subjected to graft modification by using the functionalized polyethylenimine, the carbon dioxide adsorption performance and adsorption and desorption cycling stability of the porous polyacrylonitrile nano-fiber material are greatly improved; therefore, the porous nano-fiber high-efficient adsorption material with certain flexibility and strength can be prepared, and has great utilization potentiality in the field of adsorption.

The invention relates to a humic acid organic-inorganic medicine fertilizer composition containing bacillus subtilis and/or bacillus megatherium utilizing waste of a sugar refinery and an alcohol plant. The fertilizer comprises active humic acid, inorganic fertilizer, microelement fertilizer, tea saponin, microorganism bactericide bacillus subtilis and/or bacillus megatherium and the like. The humic acid organic-inorganic medicine fertilizer composition can obviously promote crops to root and increase yield.

The invention belongs to the chemical field and in particular relates to regenerated sponge rubber and a preparation method thereof. The regenerated sponge rubber is prepared from the following raw materials in parts by weight: 45-85 parts of polyether polyol, 1.5-4.0 parts of a catalyst, 20-25 parts of a diluent and 10-15 parts of polyisocyanate, wherein NCO percent of a synthetic product is 5.0-7.0 percent. The preparation method comprises the following steps: raising temperature of the polyether polyol until 100-110 DEG C, carrying out vacuum dewatering for 2-2.5h, cooling to 50-60 DEG C, adding the polyisocyanate, raising temperature until 80-85 DEG C, reacting for 2-3h, cooling below 50 DEG C, adding the diluent and the catalyst, and stirring for 20-30min to obtain the synthetic product. The regenerated sponge rubber has the advantages of high bonding degree, good toughness, large tear strength, no peculiar smell, environmental protection, no three wastes discharge in production of the product and the like.

The invention discloses an olaquindox slow release particle and a preparing method and application thereof. The olaquindox slow release particle is prepared by an olaquindox raw material, a dispersing agent and a release retardant. The preparing method includes the steps of weighing the dispersing agent according to formula proportion, and heating and fusing the dispersing agent to be evenly mixed; adding olaquindox to be evenly stirred; adding the release retardant to be evenly stirred; and conducting fluidized-bed spray granulation nodulizing, cooling, screening and collecting through a scientific process. By means of the olaquindox slow release particle, absorption of olaquindox in the intestinal tract of a target animal can be reduced, the bioavailability of the olaquindox is reduced by about 10%-50%; after the animal eats the olaquindox slow release particle, the olaquindox slow release particle can be released in the intestinal tract in the whole process, and the action concentration and the action time of the olaquindox in the intestinal tract are prolonged. According to the preparing method, in the production process, dust and static electricity are not generated, and cross contamination of feed production is effectively avoided; the slow release particle is good in mobility and dispersibility, feed and drugs can be conveniently mixed, and drug application is convenient.

The invention discloses a human face identification method and system. The human face identification method mainly comprises a human face identification process and a key verification process. The human face identification process comprises the steps of collecting a human face image or video of a user; detecting out a human face region and determining facial feature information required for identification; matching the collected facial feature information with facial feature information pre-stored in the system; and if the matching succeeds, sending human face identification success information. The key verification process comprises the steps of randomly generating a new key after the human face identification success information is received; sending the new key to a mobile terminal of the user and an information library of the system; inputting the received key by the user; comparing the key with a key pre-stored in the system; and if the key is correct, performing information recording. The human face identification and random key double verification method is adopted, so that system application defects possibly occurring in depending on single human face identification method or key verification method are overcome, and the security and validity of the system are simply and effectively improved.

The invention relates to a humic acid type water-retaining slow-release controlled-release organic fertilizer prepared from wastes of sugar mills and alcohol plants. The fertilizer contains active humic acid, a water-retaining agent, an organic fertilizer and a bactericide. The water-retaining slow-release controlled-release organic fertilizer can effectively promote crops to take root and increase production.

The invention provides a fluorescent transparent ceramic capable of emitting blue-green light and a preparation method of the fluorescent transparent ceramic, belonging to the technical field of luminescent materials. The chemical formula of the transparent ceramic is as shown in (I): (Ca<1-x-y>Ce<x>R<y>)<3>(Sc<1-z>L<z>)<2>(Si<1-m>K<m>)<3>O<12>, wherein R is one or more selected from the group consisting of elemental Y, Gd, La, Lu, Tb, Li and Na; L is one or more selected from the group consisting of elemental Zr, Hf and Mg; K is one or two selected from the group consisting of elemental Al and P; x is greater than or equal to 0.0002 and less than or equal to 0.02; y is greater than or equal to 0 and less than or equal to 0.03; z is greater than or equal to 0 and less than or equal to 0.02; m is greater than or equal to 0 and less than or equal to 0.02; and the sum of y, z and m is greater than 0 and less than 0.05. The invention also provides a preparation method of the fluorescent transparent ceramic capable of emitting blue-green light. The transparent ceramic disclosed by the invention can be effectively excited by blue light and emits broadband blue-green light with a peak value of 505 nm, so high-power monochromatic green light LED/LD can be prepared.

The invention provides a preparation method of a water-soluble composite organosilane passive film on the surface of pyrite, and belongs to the technical field of environmental protection. The preparation method comprises the following steps: firstly, preparing hydrolysate with the concentration of methyltrimethoxysilane being 6-8%, adjusting the pH value of the solution to 3 by using hydrochloric acid, and conducting stirring at the water temperature of 40 DEG C for 45 minutes or more; adding pyrite powder and 3-aminopropyltrimethoxysilane sequentially into the hydrolysate, adjusting the pH to 6.5-7.0 with ammonia water, and conducting stirring for 100 min or above at the water temperature of 15-30 DEG C; and filtering and taking out the passivated pyrite, and conducting curing at the atmospheric temperature of 15-30 DEG C for 3 days or more to finally obtain the water-soluble composite organosilane passivated pyrite. According to the preparation method, water serves as a solvent of organosilane, the production cost is low, no safety risk exists, a surface passivation film can be formed in a normal-temperature environment to inhibit oxidation of pyrite, and large-scale application is facilitated.

The invention discloses a PPS composite material which comprises the following components in parts by weight: 100 parts of PPS resin, and 0.1-10 parts of a phosphorous acid metal salt. By adding the phosphorous acid metal salt, the crystallization rate of the PPS composite material can be increased. The PPS composite material has the advantage of rapid crystallization, and the melt flow rate of the PPS composite material can be increased.

The invention discloses a judgment method of a line-to-ground fault. A device used in the judgment method comprises a converging unit of an externally applied signal generation device and a transientwave recording type fault indicator which are in communication connection with a master station and mounted on a distribution network line as well as at least one collecting unit with a wave recordingfunction; whether the fault happens is judged by the externally applied signal generation device and the transient wave recording type fault indicator, characteristic waveforms are emitted by the externally applied signal generation device, the at least one collecting unit performs wave recording on the line and uploads wave recording information to the master station, and the master station analyzes whether the ground fault occurs at a corresponding line node according to the wave recording information. According to the method, the advantages of the existing two fault indicators are combined, application defects of the two fault indicators are overcome by mutual complementation, and the judgment accuracy rate of the ground fault is remarkably increased.

The invention relates to a minimally invasive surgery mechanical arm used in an LESS (laparo-endoscopic single site surgery) environment. The minimally invasive surgery mechanical arm comprises an operating unit and a drive unit, wherein the drive unit and the operating unit are connected through a drive thread group used for controlling the operating unit to move; the drive thread group comprisesa forceps clip joint drive thread, an upper arm drive thread, a lower arm drive thread and a hollow drive thread; the operating unit comprises a forceps clip mechanism and a hollow joint; the forcepsclip mechanism is connected with the hollow joint through two semi-circular meshing gears arranged at the top end of a hollow cylinder of the drive unit; the forceps clip mechanism comprises a lowerarm swing joint, an upper swing joint and a forceps clip joint which are connected from bottom to top in sequence; the forceps clip joint comprises left forceps and right forceps; each of the left forceps and the right forceps comprises a forceps clip and a forceps clip handle. The minimally invasive surgery mechanical arm is simple in structure, small in size, low in weight and low in cost.

The invention discloses a process method for preparing zinc borate. The method comprises the following steps: adding water into solid zinc sulfate to prepare a zinc sulfate solution, and regulating the pH value of the zinc sulfate solution to be 2-4; adding borax, zinc oxide, zinc borate crystal seed and water to enable the solid-liquid mass ratio to be (1-1.5):1, heating and reacting; and addingwater having the same mass to the solid, cooling, maintaining the temperature, crystallizing, and performing after-treatment, thereby obtaining the product. According to the process method disclosed by the invention, zinc borate is prepared by taking borax, zinc sulfate solution and zinc oxide as main raw materials, the product quality is greatly improved by methods for regulating the pH value ofthe reaction, controlling the solid-liquid ratio of the reaction and the like, and the product of uniform size is prepared by adding the screened crystal seed of a special particle size range to guidethe zinc borate crystal growth process. The zinc borate prepared by the method disclosed by the invention has excellent thermal stability, and 1% of dehydration temperature reaches 345 DEG C.

The invention discloses a preparation method and application of a magnolol-carboxyl terminal polyamide controlled release formulation. The preparation method comprises the following steps: mixing dimethyl sulfoxide and double distilled water according to a volume ratio of 1:7 so as to obtain a mixed solution; taking the mixed solution, adding carboxyl terminal polyamide according to a ratio of 6mg/mL, and adding magnolol according to a ratio of 2.0mg/mL; performing ultrasonic oscillation, and fully stirring; adding water and centrifuging to remove the precipitate, and freeze-drying the supernatant, thereby obtaining the needed magnolol-carboxyl terminal polyamide controlled release formulation, namely M-PAMAM-COOH. The preparation method disclosed by the invention is simple in operation and high in feasibility; the prepared M-PAMAM-COOH overcomes the application defects of the magnolol, and the high polymer material PAMAM-COOH is combined with a drug, so that an excellent effect of thedrug can be achieved, the drug release time is prolonged, clinical application is facilitated, and the prepared M-PAMAM-COOH has an effect of inhibiting streptococcus mutans and bio-membranes and canbe used for prevention and treatment of dental caries.