177results about How to "Fill the void" patented technology

An artificial flagstone for use in combination with other similar flagstones for covering a surface with a natural random look, the flagstone having a generally hexagonal body comprising a first, second, third, fourth, fifth and sixth consecutive vertices; a first pair of generally congruent irregularly-shaped first and second sides extending radially from the first vertex and being rotationally spaced from each other by an angle α of approximately 120°; a second pair of generally congruent irregularly shaped third and fourth sides extending radially from the third vertex and being rotationally spaced from each other by an angle β of approximately 120°; a third pair of generally congruent irregularly shaped fifth and sixth sides extending radially from the fifth vertex and being rotationally spaced from each other by an angle ω of approximately 120°; wherein the sides of each of the first, second and third pair of sides have at least one split deviation along their length and are respectively rotational images of each other, whereby in use in combination with other flagstones, each one of the sides is matingly engageable with the sides of an equivalent pair of sides of a neighbouring flagstone.

A geospatial modeling system may include a geospatial data storage device, and a processor cooperating with the geospatial data storage device for selectively inpainting data into at least one void in geospatial model data using a partial differential equation (PDE) algorithm and an exemplar algorithm.

The invention discloses graphene composite copper thick film conductive slurry. The graphene composite copper thick film conductive slurry comprises the following components in percentage by mass: 60%-80% of conductive phase, 0.5%-5% of glass phase, 15%-39.5% of organic carrier, totaling 100%. The preparation method comprises the steps of mixing the components, heating to 35-40 DEG C, and uniformly stirring. According to the graphene composite copper thick film conductive slurry disclosed by the invention, by adding graphene with an excellent conductive property, the conductive property of the slurry is improved; by bismuth oxide low-melting glass, the conductive thick film slurry has excellent electrical properties and adhesion force even when being sintered at a low temperature. The slurry has the advantages of good conductivity and small printing thickness, can be effectively applied to production of a conductive material for various products, has the advantages of simple preparation process, convenience in operation, good conductivity, uniform distribution of particle sizes and easiness in coating, and is suitable for mass production of enterprises.

The invention aims to provide a fingerprint enhancement method. The fingerprint enhancement method includes the following steps that A, a fingerprint image is normalized to obtain a normalized fingerprint image, and the continuous directional diagram of the fingerprint image is calculated; B, a fingerprint enhancement image is obtained after the normalized fingerprint image is subjected to Gabor filtration, and an initial filtering image is obtained by recombining a continuous directional diagram; C, Gaussian blur is performed on the initial filtering image to obtain a Gaussian blur image, and Gaussian difference is performed on the Gaussian blur image to obtain a Gaussian difference image; D, after being mapped in the opposite direction, the Gaussian difference image is reconstructed to obtain a final filtering image. The invention further provides a fingerprint recognition device. According to the fingerprint enhancement algorithm, the Gabor filtering and the Gaussian difference are combined, and thus the denoising capacity is enhanced, and the defects that an existing fingerprint enhancement algorithm is large in calculation amount and poor in enhancement effect are overcome. Through the fingerprint enhancement method, the fingerprint recognition device is combined with the processing structure of a DSP and the processing structure of an FPGA, and thus the fingerprint recognition efficiency and the fingerprint storage efficiency are improved.

Disclosed herein are patient-specific craniofacial implants structured for filling bone voids in the cranium as well as for simultaneously providing soft tissue reconstruction and / or augmentation for improved aesthetic symmetry and appearance. Pterional voids or defects generally result from a chromic skull deformity along with a compromised temporalis muscle or soft tissue distortion from previous surgery. When muscle atrophy occurs in the pterion, temporal hollowing generally results where there would be soft tissue but for the atrophy. The patient-specific temporal implants herein are configured to have an augmented region adjacent the temporal region of the cranium in order to account for and correct any such temporal hollowing.

The invention discloses a preparation method of a bismuth sodium titanate-barium titanate lead-free composite piezoelectric thick film and belongs to the technical field of the preparation of piezoelectric materials. The preparation method includes the following steps: 1) preparing a micro-nano bismuth sodium titanate-barium titanate powder according to a stoichiometric ratio of (1-x) Bi0.5Na0.5TiO3-xBaTiO3; 2) preparing a sodium bismuth titanate precursor sol according to a stoichiometric ratio of Bi0.5Na0.5TiO3; 3) dispersing the bismuth sodium titanate-barium titanate powder in the sodium bismuth titanate precursor sol to prepare a mixed slurry; 4) conducting spin coating deposition of the bismuth sodium titanate precursor sol, heat treatment, spin coating deposition of the mixed slurry and heat treatment, so as to prepare a single-layer composite film; and 5) repeating the step 4) to prepare the sodium bismuth titanate-barium titanate lead-free composite piezoelectric thick film with thickness of 1-20 mum. The invention makes improvement to the existing sol gel technology, has the advanategs of low process cost, flexible film thickness and good repeatability, and breaks the critical thickness restriction of the ordinary sol-gel technology.

The invention discloses a robot disordered grabbing method and system based on machine vision. The method comprises the steps that a kinect camera and a grabbing system of a robot are built, the kinect camera is used for collecting image data of the surface of a target object, and the image data are preprocessed to obtain three-dimensional point cloud data; target detection, target segmentation, target clustering, key point feature extraction, feature registration and target object recognition are performed on the acquired three-dimensional point cloud data to obtain pose information of the target object; and according to the calibration result of the hand-eye system, coordinate conversion is carried out on the pose information, and a control instruction is sent to a robot to grab the target object. By analyzing the defects of the algorithm in the disordered grabbing process of the robot and improving the existing algorithm, the complex environment where the robot is located is adapted, and therefore the disordered grabbing accuracy of the robot and the flexibility of the robot are improved.

The invention discloses high-compressive-strength recycled concrete and a preparation process thereof. The high-compressive-strength recycled concrete comprises the following components in parts by weight: 300-420 parts of reinforced recycled aggregate, 25-35 parts of recycled micro powder, 100-200 parts of natural coarse aggregate, 120-200 parts of natural fine sand, 120-170 parts of cement, 50-130 parts of fly ash, 50-120 parts of mineral powder, 6-12 parts of a waterproof agent, 0.8-2.2 parts of an air entraining agent, 120-160 parts of water and 20-35 parts of polypropylene mixed filler. The preparation process comprises the following steps: S1, weighing corresponding amounts of cement and natural fine sand, putting the cement and the natural fine sand into a stirrer, and stirring for40-60 seconds; S2, weighing the regenerated micro-powder, the fly ash, the mineral powder and the polypropylene mixed filler according to corresponding proportions, adding the weighed materials into the stirrer in the step S1, continuing to stir and mix for 30-40 seconds, adding half of the water according to the proportion, continuing to stir for 30-40 seconds, and mixing to obtain mortar with uniform color; and S3, adding the rest half of the water, the reinforced recycled aggregate, the natural coarse aggregate, the air entraining agent and the waterproof agent according to the proportion in the step S2, and continuously stirring for 60-80 seconds until the mixture is uniform.

The present invention discloses an iron tailings mixing sand concrete, which comprises, by mass, 16-20% of 52.5-grade cement, 22-27% of iron tailings mixing sand, 45-48% of crushed stone, 5.5-6.5% of an admixture, 7.3-8.1% of water, and 0.2-0.3% of a polycarboxylic acid efficient water reducer. The iron tailings mixing sand concrete of the present invention has characteristics of good water retention property, easy vibration molding, and good workability.

The invention relates to the technical field of coatings and in particular to a thermal-insulating flame-retardant waterproof coating which comprises the following substances in parts by weight: 100 parts of an epoxy resin, 10-25 parts of amino modified quartz powder, 20-42 parts of sepiolite, 5-10 parts of a flame retardant, 80-150 parts of reinforcing fibers, 0.5-3 parts of a surfactant and 100-150 parts of a solvent, wherein the reinforcing fibers comprise a reinforcing fiber A and a reinforcing fiber B; the diameter of the reinforcing fiber A is 10-50nm; the length of the reinforcing fiberA is 0.5-2mu m; the diameter of the reinforcing fiber B is 100-300nm; the length of the reinforcing fiber B is 3-5mu m. As an epoxy substrate is doped with reinforcing fibers which are different in diameter and length, a meshed structure is formed, and the coating is excellent in thermal insulation effect; meanwhile the amino modified quartz powder can be matched with the reinforcing fibers to form a reinforced framework, the overall toughness and the strength of the coating are improved.

The invention discloses a modified light-cured resin and a preparation method thereof. The modified light-cured resin composition is prepared from acrylic resin, epoxy resin, reactive diluent, radical initiator, kation initiator, polyhydric alcohols, flatting agent, flatting agent, wetting dispersant, half-cage type POSS, nanosilicon dioxide, and pigment. Compared with the prior art, the invention applies the half-cage type POSS to modify the light-cured resin; the POSS resin has excellent temperature resistance, and is able to effectively improve the vitrification transformation temperature of the resin system, and the aging resistance is good; moreover, the POSS can effectively fill gaps in the polymer, and reduce the contraction of the polymer. Meanwhile, the half-cage type POSS is in good compatibility with resin, and can completely dissolve in the epoxy resin, thus the dispersing problem during the resin preparation process is reduced. Therefore, the modified light-cured resin prepared by the invention is featured by high temperature resistance, high strength, aging resistance, and stable dimension.

The subject invention provides a unique and advantageous system for providing travel companion services, thereby effectively filling customer service need for travelers. In another aspect the subject invention provides an effective business model that is beneficial to travelers, travel companion providers, and the travel industry.

The invention discloses a method for improving an antioxidation performance of a graphite electrode with surface modification. The method comprises: a graphite electrode is embedded in Si powder to carry out high-temperature reaction, so that a SiC surface protective layer is obtained; and a vacuum plasma spraying technology is applied to spray a fusing SiC coating on the surface of the obtained SiC protective layer, so that a surface defect of the SiC protective layer obtained by the embedding method is filled up and modified and thus the quality of the surface protective layer is improved. According to the method provided in the invention, surface modification processing is carried out on the graphite electrode, so that the high-temperature antioxidation performance of the graphite electrode can be substantially improved. Moreover, the method can be widely applied to the manufacturing industry of graphite electrodes used for steelmaking of an arc furnace and external refinement.

The present invention relates to a vehicular seat assembly that may be configured in four different arrangements to accommodate an adult in its first position, a youth in its second position, a toddler in its third position, and infant in its fourth position. When configured to seat an infant, the infant is retrained using a restraint system that is integral to the seat assembly, and when configured to seat a toddler, the toddler is restrained by a separate and distinct restraint system that is also integral to the seat assembly.

The invention provides a method for forming an insulating layer on an overhead power transmission line. The method includes painting solventless coatings on the power transmission line to form a first coating, winding an electric insulating rubber tape on the first coating to form a rubber tape layer after the first coating is half-dry or dry, and painting the solventless coatings on the rubber tape layer to form a second coating. Gaps among guide lines of the overhead power transmission line are filled, and the rubber tape and the coatings are provided to form the insulating layer, so that good insulating and waterproof effects are realized.

A seepage-proofing aerated concrete building block and a preparation method thereof are disclosed. The building block is composed of following raw materials in parts by weight: 20 to 25 parts of cement, 15 to 20 parts of quicklime, 10 to 15 parts of gypsum, 40 to 45 parts of fly ash, 0.1 to 0.2 part of aluminum powder, 1 to 2 parts of sulfonated lignin, 20 to 25 parts of slag, 10 to 15 parts of cotton straw powder, 10 to 15 parts of grapevine powder, 2 to 3 parts of waste engine oil, 1 to 2 parts of sodium persulfate, 2 to 3 parts of sweet rice flour, and a right amount of water. The aerated concrete building block adopts oil foot and waster engine oil components, which have been modified by initiator, to increase water-resistance ability of the building block, and the seepage-proofing ability of the building block is also largely improved. The seepage-proofing aerated concrete building block has been used in an outer wall body of a community for more than 3 years, and no seepage phenomenon has been found. But adopting conventional aerated concrete building blocks, every spring resident houses have seepage phenomenon. Sweet rice flour is used to prepare pulp, which can fill the cracks in the building block to reduce the possibility of seepage.

The invention relates to a formed part preparation method based on a reduced graphene oxide and copper composite material. According to the method, graphene oxide / copper mixed powder is prepared through wet ball milling; then, the mixed powder is reduced under hydrogen atmosphere; and finally, the reduced graphene oxide and copper composite material is obtained through a repressing and resinteringpowder metallurgy method. By means of the method, reduced graphene oxide is well and evenly scattered in a copper matrix, the prepared reduced graphene oxide / copper composite material has the advantages of being high in strength, high in plasticity and high in conductivity, the repressing and resintering sintering forming method is simple and controllable in process, low in production cost and high in production efficiency, and large-scale industrialized production is easy to achieve. Formed pieces prepared through the formed part preparation method are little in oxide, less in pore and highin compactness and has excellent comprehensive performance such as high strength, high conductivity and high plasticity.

The invention provides a dyeing and finishing method for a soft and breathable down-proof fabric. The fabric is obtained by interweaving warp and weft, wherein both the warp and the weft are cross-blended yarn of staple cotton and tencel G100. The dyeing and finishing method comprises the steps of conducting refining on gray fabric, and carrying out stentering and whitening, softening and shaping, and pre-shrinking sequentially. The down-proof fabric processed according to the dyeing and finishing method touches soft and exquisite, is excellent in down-proof performance, safe and environmentally friendly.

A vibratory concrete finishing tool includes an elongated handle formed with a cylindrical configuration having an uppermost end and a lowermost end. A concrete working device has a planar bottom surface adapted to engage a wet concrete surface, and a receiver for removably receiving the lowermost end of the handle. A clamping and vibration transmitting arrangement is coupled externally to the lowermost end of the handle. An engine-driven vibratory mechanism is fixed to the clamping and vibration transmitting arrangement so that the vibratory mechanism is held in spaced relationship with the handle. The vibratory mechanism has a spinning crankshaft assembly with an eccentric weight mounted thereon.