612results about How to "Ensure Structural Integrity" patented technology

The invention provides an additive composition used for a high-ductility fiber-enhanced cement based composite material. The additive composition comprises, by weight percentage, 20-85% of a rheological adjusting component, 2-30% of a setting and hardening adjusting component, 1-20% of an interlayer bonding strength adjusting component, 4-40% of a volume stabilizer, and 1-10% of a water reducer. The invention further provides a high-ductility fiber-enhanced cement based composite material based on the additive composition. Through optimal design of the additive composition and aggregate, the workability and the setting and hardening speed of a material is adjusted, and the printability, constructability, and the interlayer bonding strength of the high-ductility fiber-enhanced cement based composite material in 3D printing are improved. Compared with a 3D printing building material in the prior art, the composite material shows excellent whole performance. A component made from the composite material can meet the ductility of structural requirements without steel bars, thereby solving the problem that a component made from a 3D printing building material in the prior art is finally broken in a brittle failure manner.

The preparation methods of globefish skin active collagen and the peptide of the active collagen are that the globefish skin is cut into small pieces to be frozen, dried, crushed and put into sodium chloride solution to be stirred for 12 hours and then for centrifugation to discard supernatant and remove non-collagen proteins, deposition is put in to acetum, pepsin is added under 0 DEG C to 10 DEG C for enzymolysis and centrifugation, the supernatant is put through an ultrafiltration membrane, and the above part is frozen and dried to obtain the collagen. After the active collagen is prepared, the rest deposition is centrifugated until the pH value is between 2.0 to 7.0, papain is added into the deposition for the enzymolysis, the supernatant is centrifugated and respectively put through the ultrafiltration membrane after enzyme-denaturing to obtain the globefish skin collagen peptide of different molecular weight ranges, and the globefish skin collagen peptide are frozen and dried to obtain the light yellow or white powdery globefish skin collagen active peptide which has good antioxidation character and takes effects of eliminating free radical and reducing the senescence degree.

The invention discloses a high-fidelity digital modeling method of terrain elevation, the steps are as follows: the first step is to carry out push-broom data acquisition; the second step is to carry out grid segmentation of the acquired vector terrain feature data; the third step is to carry out similar DEM grid data organization of PLA, organization management is carried out to the PLA data after the grid segmentation treatment according to grid data structure; the fourth step is to generate a new digital elevation model file to carry out the seamless embedding of the vector feature data; a feature embedded digital elevation model data structure is composed of three sub-files which comprise a grid file, a feature identification file and a feature file; the grid file is a regular grid data structure; the feature identification file is used for spatial data index of a vector grid integrated organization, the structure thereof is consistent with the current national DEM data structure and only records the grids with the features; the feature file records terrain feature information which is contained in one grid unit, and the information comprises feature points and feature lines.

The invention provides a CD-MOF composite microsphere and a preparation method thereof. Specifically, the CD-MOF composite microsphere contains a drug-loaded CD-MOF component (a) of a cubic crystal structure and a component (b) wrapping the component (a). The composite microsphere provided by the invention can overcome the problem that CD-MOF used as a drug storage cavern disintegrates in the presence of water, protects the intactness of a CD-MOF porous skeleton structure, prevents burst release of drugs and realizes slow release of drugs.

The invention discloses a preparation method of a nano-reinforcing metal matrix composite material with high strength and toughness. The preparation method of the nano-reinforcing metal matrix composite material with high strength and toughness is characterized by comprising the steps of jointly ball-milling pure metal powder, alloy powder thereof, elementary-substance element powder for alloyingand a nano-reinforcing body by adopting variable-speed ball milling so as to obtain I-grade composite powder; then mixing with non-ball-milled pure metal or alloy powder so as to obtain II-grade composite powder; and densifying the obtained II-grade composite powder so as to obtain the nano-reinforcing metal matrix composite material. In the composite material, a non-homogeneous grain structure ofa matrix can promote stress stiffening and work hardening, stress-strain concentration is effectively relieved, and strength and plasticity are synchronously improved. The method is capable of regulating and controlling alloy components of the matrix as needed, wide in application range, and capable of realizing macro-quantitative preparation of bulk composite materials, so that the engineering application of the metal matrix composite material is promoted.

The invention relates to a high-specific surface area nanometer mesoporous silicon carbide hollow ball and a preparation method thereof. The preparation method comprises dropwisely adding different amounts of silica precursor tetraethoxysilane into water-anhydrous ethanol mixed solutions with different ratios so that the silica precursor tetraethoxysilane is hydrolyzed into silica solid nanospheres with different diameters, dispersing the silica solid nanospheres in distilled water with different volumes, carrying out thermal insulation for a certain time to obtain nanometer mesoporous silicon carbide hollow balls with different diameters are obtained, coating the inner and outer shells of the nanometer mesoporous silicon carbide hollow ball with an organic matter layer so that the organic matter is insert into the shell walls, carrying out carbonization, mixing the reaction product, magnesium powder and a metal salt to obtain a uniform mixture, and carrying out thermal insulation in an inert atmosphere for some hours to obtain nanometer mesoporous silicon carbide hollow balls with uniform structures and adjustable sizes. The preparation method has a low reaction temperature and a low cost. The obtained hollow silicon carbide has the advantages of uniform structure, adjustable sizes, superhigh specific surface area of 648m<2> / g and excellent mesoporous structure.

An electric machine (2) comprising a rotor (4) and a stator (6) arranged coaxially therewith, at least one of said rotor (4) and stator (6) being formed of a plurality of parts and there being provided a bandage (16) holding together the plurality of parts of said rotor and / or stator (6), wherein the bandage (16) is formed of an electrically non-conducting fiber material having a coefficient of thermal expansion similar to the coefficient of thermal expansion of the parts of said rotor (4) and / or stator (6).

The invention provides a graphene thermal-conductive coating modified radiator and a preparation method thereof. The graphene thermal-conductive coating modified radiator is composed of a heat dissipation base material and multiple fins; a graphene thermal-conductive layer is on the outside surface of the heat dissipation base material; the multiple fins are contacted with the heat dissipation base material; the graphene thermal-conductive layer is at the root parts or on all the outside surfaces of the multiple fins; and the graphene thermal-conductive layer is formed by a composite nano-material, which is formed by graphene oxide quantum dots and liquid-phase stripped graphene. The graphene thermal-conductive coating modified radiator is prepared by coating the dispersion liquid of the composite nano-material formed by the graphene oxide quantum dots and the liquid-phase stripped graphene on the outside surface of the heat dissipation base material and the root parts or all the outside surfaces of the fins contacted with the heat dissipation base material in the manners of dipping, blade coating, spin coating, spray coating, slobbering or electrophoretic deposition. The graphene thermal-conductive coating modified radiator provided by the invention has the advantages of being abundant and cheap in raw material source, high in production efficiency, simple and easy in preparation process, good in heat dissipation effect and the like.

The invention relates to fibers, particularly binder fibers, made from polyesters and the polyesters themselves. The polyesters are the product of a reaction between a glycol component and a dicarboxylic acid component where the glycol component contains at least 50 mole % of a four carbon diol, such as 1,4-butanediol, or a six carbon diol, such as 1,6-hexanediol or a mixture of a four carbon and six carbon diol. Typically, the polyesters of the invention are semicrystalline and / or crystalline and have a specific melting point ranging from about 140 to about 185° C. The polyesters of the invention may be formed into a variety of products, especially binder fibers for nonwoven fabrics, textile / industrial yarns and fabrics, composites and other molded articles.

The invention relates to a lithium-ion-battery composite material and a preparing method of a composite electrode of a lithium ion battery. Nanometer silicon is added into a dopamine hydrochloride solution, and a polydopamine wrapping layer is formed on the surface of silicon; meanwhile, graphene quantum dots are prepared with the one-step solvothermal method, and are doped into sodium alginate binding agent, and a composite electrode material is prepared. In the lithium-ion-battery composite material and the preparing method of the composite electrode of the lithium ion battery, the polydopamine wrapping layer can buffer enormous volume expansion of a silicon ball, and the stability of a silicon-based cathode material is effectively improved. As the graphene quantum dots are doped, a binding agent layer has the higher mechanical performance and the elasticity, the product has the more lasting swelling property in electrolyte accordingly, and can develop the reversible buffering effecton enormous volume changes of silicon after multiple times of cycling, and the structural integrity of an electrode in the charging and discharging process is further guaranteed; meanwhile, the graphene quantum dots have certain conductivity, and therefore the conductivity of the binding agent layer is improved. The electrode shows the good electrochemical performance, and can be widely applied to various high-capacity lithium ion batteries.

The invention provides a flexible fireproof cable. The flexible fireproof cable comprises cable cores, a thermal-collapse-resistant filling layer, a waterproof layer, an outer blocking layer and a sheath layer, wherein each cable core comprises a conductor, an inner blocking layer and an insulating layer from interior to exterior, at least one cable core is wrapped with the waterproof layer, the filling layer is arranged between the waterproof layer and the cable cores, the filling layer is formed by weaving ceramic silicon sealing strips and glass fiber in a winding mode, and the waterproof layer is wrapped with the outer blocking layer and the sheath layer in sequence. According to the flexible fireproof cable, on the premise that a high fireproof level is achieved, traditional technologies such as the wrapping technology and the cabling technology are adopted for all the important structures such as the inner blocking layers, the outer blocking layer and the thermal-collapse-resistant filling layer, and the problems that an existing fireproof cable is high in price, complicated in technology, large in manufacturing difficulty because special devices are needed, not convenient to construct because a metal sheath is hard and low in fireproof performance are effectively solved.

The invention discloses a design and preparation method for a cavity type FBAR (thin-film bulk acoustic resonator) filter. The method comprises the following steps: an FBAR ladder filter based on a Mason model is simulated with ADS (Advanced Design System) software, and physical parameters of each film layer whose transmission performance meets index requirements for insertion loss and out-of-band rejection are obtained; a piezoelectric layer in corresponding thickness and a composite film layer of an electrode layer grow on a preparation substrate, a support substrate is taken additionally for forming cavities, the composite film layer is bonded with the support substrate, the original preparation substrate is stripped off, upper electrode layers with different thicknesses grow, and an electrode / piezoelectric layer / electrode / cavity composite structure is formed. Parameters of the upper electrode film layer on the FBAR filter designed and prepared with the method are controlled precisely, and the performance of the obtained filter is excellent; damage probably caused by introduction of a sacrificial layer and adoption of a chemical mechanical polishing method to a resonance structure in the traditional technology is avoided, and device loss is reduced.

The invention discloses a fusion reactor liquid tritium breeder cladding module for realizing remote replacement by using a single layer guide tube. The fusion reactor liquid tritium breeder cladding module comprises a first wall, wherein parallel first wall helium gas flow channels are distributed in the first wall; the outlets of the first wall helium gas flow channels are communicated with a second-stage helium gas header; the front face of the first wall is provided with a reserved hole; the single layer guide tube passes through a U-shaped tritium breeding zone which is not blocked by any clapboard, and is arranged in the preserved hole in a way of being vertical to the front face of the first wall; the end face of one end of the single layer guide tube is flush with the back walls of the first wall helium gas flow channels; the other end of the single layer guide tube is fixed on an internal back plate; the pipe orifice of one end, which is far away from the preserved hole, of the single layer guide tube is provided with a sealing plate; the single layer guide tube comprises a single layer guide tube which is provided with a branch tube, and a single layer guide tube which is provided with a ventilation hole; and the branch tube and the ventilation hole are communicated with the second-stage helium gas header. The fusion reactor liquid tritium breeder cladding module has the advantages of safety, reliability, simple structure, easiness in processing and manufacturing, and the like, and can be applied to a nuclear fusion device.

An insulated concrete form system for constructing the exterior walls and gable ends of a structure is disclosed using expanded polystyrene forms that interconnect and are bonded to each other and to the structure's slab or foundation with concrete. Internal, substantially columnar voids are provided in each of the panel forms and both the interior and the exterior surfaces of the walls and gable ends may be finished with a variety of finish materials using furring strips that are incorporated into the interior and exterior surfaces of the forms.

The invention belongs to the field of graphene functionalization and application, and relates to an edge functionalized graphene, a preparation method thereof, and applications of the edge functionalized graphene in preparing anticorrosive paint According to the preparation method, a chlorate-concentrated sulfuric acid-hydrogen peroxide system is adopted for functionalization of graphene so as to obtain the edge functionalized graphene, wherein carboxy groups are connected with the lamina edges of a whole structure via selective modification; the edge functionalized graphene is subjected to film formation alone, or is combined with an anticorrosive paint formula component for composite film formation so as to obtain the edge functionalized graphene anticorrosive paint. The preparation method is simple, is high in efficiency, is capable of solving problems that graphene is difficult to treat, and stacking is easily caused, providing graphene solution with processibility and treatability, avoiding destroying of the graphene lamellar structure, and maintaining the graphene lamellar structure and the characteristics; the obtained edge functionalized graphene anticorrosive paint possesses excellent corrosion resistance; and application range is wide.

The invention relates to a resin-based premix and rocket engine housing synchronous thermal-curing and adhesion method, which comprises that a hot vulcanization type mixing rubber sheet coated with an adhesive is placed inside a rocket engine housing and is expanded so as to adhere to the rocket engine housing; and a resin-based premix pressed into a sheet is placed inside the rocket engine housing and is expanded so as to adhered to the hot vulcanization type mixing rubber sheet, such that the premix prepared by adopting the resin as the matrix material and adding the organic or inorganic filler and the rocket engine housing can be subjected to the synchronous one-time thermal-curing molding. The method of the present invention has the following advantages that: the direction adhesion between the resin-based premix and the rocket engine housing is reduced so as to produce the high adhesion stress and reduce the rocket engine housing wall surface temperature increasing rate, the adhesion is reliable, the strength is high, and the process is easy to perform.

The invention discloses a nanocarbon reinforced copper-based composite material for maglev trains. The nanocarbon reinforced copper-based composite material is characterized in that the nanocarbon reinforced copper-based composite material comprises 0.1-5% of surface-modified carbon nanotubes, 0.1-5% of surface modified graphene, 2-10% of graphite powder, 1-4% of chromium powder, 1-8% of lead powder, 2-10% of tin powder, 0.1-1% of zirconium powder, 0.01-0.5% of lanthanum powder, and the balance of copper powder, wherein the surface-modified carbon nanotubes are carbon nanotubes obtained by modifying carbon nanotubes with an aqueous solution of gallic acid, and the surface-modified graphene is graphene modified with an aqueous solution of rutin. A copper-based composite material has low impurity content, and maintains the structure of an added reinforcing phase component complete, and various added components have a co-reinforcing effect, and significantly improve the strength, the hardness and the current-carrying friction and wear properties of the copper-based composite material. The invention also discloses a preparation method of the copper-based composite material. The methodhas the advantages of simple process, easiness in production, and broad application prospect.

The invention belongs to the field of multilevel porous materials and particularly relates to a multilevel porous polylactic acid material and a preparation method thereof. The invention provides a polylactic acid material which is a mesoporous-macroporous material. The invention provides the multilevel porous polylactic acid material which can be degraded. The porous material has a controllable shape and a controllable pore size. The porous material can be applied to selective oil and water separation because of excellent hydrophobicity (a water contact angle can be up to 135 degrees) and lipophilicity. The multilevel porous material still has very good size stability and very good solvent resistance under an environment of which the temperature is up to 210 DEG C, and is still integral in structure when being stood in an acetonitrile solution with 80 DEG C-temperature for 24 hours; and the adsorption quantity of chloroform in an aqueous solution by the multilevel porous material can be up to 1.87 + / - 0.20gg<-1>.

The invention provides a metal vanadate compound co-doped high-nickel ternary precursor and a preparation method thereof. A metal vanadate compound is doped in the coprecipitation reaction process, sothat one or two or more metals are synergistically doped to modify a nickel, cobalt and manganese or aluminum ternary precursor material; in the preparation process, a complexing agent solution and ametal solution are equally divided into an upper liquid inlet pipe and a lower liquid inlet pipe, and added into a reaction kettle; different regulation and control modes and growth process parameters are adopted in different stages of precursor growth; the ternary precursor with special primary particle morphology such as a flower sheet shape, a slender spindle shape, a thick and short rod shapeand the like or loose, porous, dense, hollow and other section morphology inside can be prepared, and the requirements of lithium batteries with different properties on precursors with different physical properties can be met.

Provided is an electric heating glass kettle. The electric heating glass kettle comprises a glass cup body, a handle and a bottom cover, wherein the handle and the bottom cover are arranged on the cup body. The bottom of the cup body is provided with a heating disc. The heating disc comprises a body, a heating element, and a silicon ring, wherein the heating element and the silicon ring are arranged on the body, a neck portion is formed at the bottom of the cup body, the silicon ring and the body are fixedly connected in a sealing mode and wrap the neck portion, the neck portion is provided with a fastening ring, the bottom cover is connected with the fastening ring, and the handle is directly or indirectly connected with the fastening ring. Compared with the prior art, the electric heating glass kettle has the advantages that an embedded portion of the silicon ring and the body of the heating disc are fixedly sealed into one, then an elastic wrapping portion of the silicon ring is used for wrapping the neck portion of the cup body, and therefore flexible sealing connection between the heating disc and the cup body is achieved. The sealing between the heating disc and the cup body is guaranteed, structural uniformity of the cup body, the handle and the bottom cover is guaranteed, meanwhile, technological requirements on the cup body are reduced greatly, and assembly efficiency of products is improved.

Relating to the technical field of composite materials, in order to solve the problems of high price and low catalytic activity of electrode catalytic materials in existing zinc-air batteries, the invention provides a cobalt diselenide / nitrogen-doped carbon nanomaterial composite electrode catalytic material, a preparation method and application thereof. The preparation method includes the steps of: (1) growing Co-MOF on carbon cloth subjected to hydrophilization treatment; (2) growing a nitrogen-doped carbon nanomaterial through CVD process to obtain a Co / nitrogen-doped carbon nanomaterial; wherein the nitrogen-doped carbon nanomaterial is a combination of nitrogen-doped carbon nanotube and nitrogen-doped carbon nanosheet; and (3) carrying out selenylation treatment to obtain the cobalt diselenide / nitrogen-doped carbon nanomaterial composite electrode catalytic material. The composite material provided by the invention retains the structural integrity of the cobalt diselenide porous frame / carbon nanosheet array obtained by taking the triangular lamellar MOF crystal as a template, has excellent properties of both the carbon nanotube and the cobalt diselenide porous frame, and has wide application prospects in the fields of adsorption, sensing, energy storage, catalysis and the like.

A treatment apparatus includes a cannula with a cannula lumen. The cannula has a first average diameter. A probe is positionable in the cannula lumen. The probe has a first section with a second average diameter and a second section with a third average diameter that is less than the second average diameter. At least a portion of the second section has a curved section with at least one radius of curvature. The radius of curvative is selected to provide that as the second section passes through the cannula lumen a first side of the second section is tangential to a first side of the cannula lumen, and a second opposing side of the second section is tangential to a second opposing side of the cannula lumen.

The embodiment of the invention discloses a phase change memory and a manufacturing method of the phase change memory. The phase change memory comprises a first conductive wire, a phase change memoryunit and a second conductive wire which are sequentially stacked from bottom to top, wherein the first conductive wire and the second conductive wire are parallel to the same plane and are perpendicular to each other; the phase change memory unit is perpendicular to the first conductive wire and the second conductive wire; and the phase change memory unit comprises a tunnel barrier layer, a firstelectrode layer, a gating layer, a second electrode layer, a phase change memory layer and a third electrode layer which are sequentially stacked from bottom to top, wherein the first electrode layeris used for blocking diffusion between the tunnel barrier layer and the gating layer; and the tunnel barrier layer has an on state and an off state, wherein the tunnel barrier layer in the on state isconductive, and the tunnel barrier layer in the off state is electrically insulated.

A pneumatic tyre equipped with a radiofrequency transponder and comprising a crown, two sidewalls and two beads, each bead comprising at least one annular bead wire that rotates about a reference axis, at least one annular carcass ply, coaxial to the reference axis, anchored in the beads, separating the pneumatic tyre into two areas, inside and outside the carcass ply, and the radiofrequency transponder comprising at least an electronic chip and a radiating radiocommunication antenna and being arranged radially externally relative to said bead wire, characterised in that the radiofrequency transponder comprises a primary antenna electrically connected to the electronic chip, in that the primary antenna is electromagnetically coupled to the radiating antenna and in that the radiating antenna consists of a single-strand coil spring defining a first longitudinal axis.

The invention discloses a preparation method of a graphene enhanced FCC-type high-entropy alloy. The method comprises the steps that 1, FCC-type high-entropy alloy powder is prepared by a gas atomization method; 2, the FCC-type high-entropy alloy powder is subjected to ball milling and then dried; 3, the dried FCC-type high-entropy alloy powder is mixed with graphene nanoflakes, then composite powder is obtained by ball milling; and 4, the composite powder is subjected to spark plasma sintering, and the graphene enhanced FCC-type high-entropy alloy is obtained after cooled in a furnace. According to the preparation method, short-time high-energy ball milling is adopted, so that the FCC-type high-entropy alloy powder forms multi-scale lamellar structures and produces fine nanocrystals, combined with low-energy ball milling, the graphene nanoflakes are completely and evenly dispersed between the lamellar structures, the graphene enhanced FCC-type high-entropy alloy with multi-scale crystals is prepared, the strengthening effect is effectively enhanced, and the good matching of strength and plasticity is achieved.

A cleanroom cleaning device includes a multi-compartment container having two or more compartments and one or more breakable seals with at least one compartment containing a cleaning implement and at least another compartment containing a liquid capable of saturating the cleaning implement when the seals are broken. Another cleanroom cleaning device includes a nonbreakable / nonburstable outer pouch, a breakable / burstable inner pouch containing a liquid, and a cleaning implement where the inner pouch containing liquid and the cleaning implement are both contained within the outer pouch.

The invention discloses a jointing structure of a composite floor. The jointing structure comprises a precast concrete plate, a lower-layer steel mesh, truss steel bars, additional steel bars, an upper-layer steel mesh and cast-in-place concrete. The truss steel bars are banded on the lower-layer steel mesh poured in the precast concrete plate, the upper-layer steel mesh is erected on the top of the truss steel bars, the additional steel bars are added on the lower layer at the jointing seam of the composite floor, and the composite floor is of integrated cast-in-place concrete. By the aid of the jointing structure, rationalization of plate division and reliability of jointing structure are guaranteed, integrated performances of the structure are guaranteed, and cracks at the joint are prevented from appearing.