55 results about "Cellular material" patented technology

The present application relates to the field of intelligent protection, and particularly relates to a 4D printing system and method of a bionic energy-absorbing honeycomb structure with adjustable configuration, which can consider deformation and efficient energy absorption when facing different collision conditions, fully protect the integrity of the passenger cabin or cargo cabin, and effectively reduce the injury of passengers or goods. The printing device contains a double-material extrusion system, a control system and a dynamic forming platform. The double-material extrusion system integrates a digital magnetic control system with an auxiliary magnetic field material extrusion system. In the printing process, by planning the printing path and applying a magnetic field, a patterned ferromagnetic domain pattern can be obtained while forming a complex honeycomb structure. Under the coupling effect of a high-frequency induction heater and a driving magnetic field, combined with the dynamic chemical properties of the base material, the obtained honeycomb structure can adjust the cell structure and material stiffness of the honeycomb material to cope with different collision conditions, realize active intelligent protection, and has great application potential in the field of transportation.

Disclosed herein, inter alia, are devices and methods for efficient transfer and analyses of cellular material, tissue samples, such as tissue sections, using carrier substrates and devices.

The invention belongs to the technical field of composite materials, and relates to foaming wave-absorbing slurry, a foam filling honeycomb material and a preparation method thereof. A specific wave-absorbing foaming slurry is filled into a wave-absorbing honeycomb core to prepare a target foam-filled honeycomb material, and a physical foaming method is adopted, so that the improvement of broadband wave-absorbing performance and effective bearing can be realized, and the characteristic of light weight can be exerted; by filling the wave-absorbing foam into the wave-absorbing honeycomb core and using the microspheres expanded by heating as the foaming medium, compared with a chemical foaming method, the foaming process does not involve chemical reaction, so that the generation of harmful gas is completely avoided, the precipitation of chemical foaming agent residues in the product is avoided, and the service life of the product is prolonged. Therefore, the dual problems of environmental pollution and product pollution caused by chemical foaming are solved.

The application discloses a kind of X waveband wave-absorbing honeycomb composite layer structures based on graphene derivative, composite material and preparation method and application thereof, method steps include: honeycomb material processing: cutting and washing to honeycomb material;Configuration wave-absorbing slurry: configuration graphene derivative wave-absorbing slurry, and stirring and sanding are carried out;Two times of impregnation: aramid paper honeycomb sheet is impregnated into graphene derivative wave-absorbing slurry, then drying is carried out, and two times of impregnation are carried out;Surface bonding treatment: glass fibre and / or epoxy resin skin are bonded on the upper surface of honeycomb sheet, and conductive carbon fibre and / or epoxy resin skin are bonded on the lower surface of honeycomb sheet.The application can realize the strong absorption (RL<-15dB) characteristics of X waveband electromagnetic wave under thin thickness (8mm), and the material has good structural strength and environmental adaptability, and the preparation method is simple, the cost is moderate, and is suitable for large-scale industrial production.

This utility model discloses a vacuum clamping device for honeycomb materials, relating to the field of honeycomb material processing technology. It includes a base and a baffle. The base has an internal pore cleaning mechanism, which includes a cylinder. A lifting plate is located at the top of the cylinder. This utility model, through the pore cleaning mechanism, can clean impurities stuck in the pores of a square-hole plate. During use, the cylinder is activated to insert a top block into the corresponding pore, pushing out the impurities. Then, a fan is activated to blow away the impurities. This avoids the situation where some pores in the square-hole plate are blocked by impurities due to difficulty in cleaning them, resulting in uneven force during clamping and a poor clamping effect. It also avoids the difficulty of manual cleaning due to the small pore diameter, thus ensuring the working effect of the vacuum clamping device.

Large volume cellular material may be preserved by combining the cellular material with a cryoprotectant formulation / medium / solution containing at least one mNP and then subjecting the cellular material to a vitrification preservation protocol including nanowarming. This preservation method is particularly effective for cartilage tissues.

A system for extracting and analysing cellular material, the system comprising an integrated lab-on-a-chip (LOC) 1 and an instrument 2. The instrument comprises an interface or recess 4 for holding th

Disclosed herein, inter alia, are devices and methods for efficient transfer and analyses of cellular material, tissue samples, such as tissue sections.

The application discloses 3D printing aramid wave-absorbing honeycomb material and a preparation method and application thereof, utilizes wave-absorbing agents with nano-scale structure and excellent electrical properties and aramid nanofibers with excellent mechanical properties to be tightly combined through hydrogen bonds, and advantages that the surface of the wave-absorbing agents and the aramid nanofibers is easy to produce a strong network cross-linking structure, and the mechanical properties of the 3D printing aramid wave-absorbing honeycomb material are improved, a new aramid nanofiber-based material with good wave-absorbing performance and mechanical properties is developed, and the defects of the current wave-absorbing honeycomb material, such as a large weight of a surface coating and easy peeling, are solved, and the application demand in the fields of aerospace, radar stealth technology and the like can be met. The 3D printing technology is used to print aramid wave-absorbing honeycomb materials with different sizes and densities, energy consumption is low, printing precision is high, the process is simple, the 3D printing aramid wave-absorbing honeycomb material has excellent mechanical properties, good wave-absorbing performance, strong structure designability, and a wide application prospect.

The present invention is a camper configured to fit in the bed of a truck. The camper is made with an external frame comprised of L-shaped angled metal members which provide structural support and help seal the joints between sections of the camper walls. The camper walls are comprised of honeycomb material which function as both walls and insulation. The novel combination of these materials allows for the functions of many elements to be achieved by only two components.

The invention relates to the field of milling, in particular to a composite holding base material and a preparation method and application thereof. According to the invention, low-freezing-point agar and gelatin hydrogel with a mass ratio of 9: 1-1: 1 are used as a composite immobilization base material for the first time to be applied to the field of milling, so that stable immobilization and convenient disassembly of the honeycomb material are realized; the problems of high cutter cost, harsh parameters, unreasonable holding mode and poor process universality in the milling of the existing 3D printing honeycomb composite material are solved, the industrial pain points of difficult disassembly, easy workpiece damage and residual influence on performance in the traditional holding mode are solved, and powerful support is provided for diversified application of the 3D printing honeycomb composite material; and the method has wide industrial popularization value.

According to the composite component, the vehicle body frame and the vehicle, the composite component comprises a first component body, a second component body and a third component body which are sequentially arranged in a stacked mode from outside to inside, the first component body, the second component body and the third component body are independently arranged, and the second component body is connected with the first component body and the third component body; wherein the first component, the second component and the third component are all configured to be made of honeycomb materials, the density of the first component is set to be rho1, the yield strength of the first component is set to be Rp1, the density of the second component is set to be rho2, the yield strength of the second component is set to be Rp2, the density of the third component is set to be rho3, the yield strength of the third component is set to be Rp3, rho1, rho2 and rho3 meet rho1 < rho2 < rho3, and Rp1, Rp2 and Rp3 meet Rp1 < Rp2 < Rp3. In this way, differentiation and self-adaptive protection of low-speed, medium-speed and high-speed full-scene collision are achieved, overall light weight can be achieved due to the adoption of the variable design, and therefore the design requirement for light weight of the vehicle body frame is met while safety is guaranteed.

Methods and systems for analysis and isolation of tissue and cellular material are provided, including to isolate nucleic acid from a sample.

An apparatus for the production of iron through reduction of iron ore by an electrolysis reaction, the electrolysis reaction emitting a gas, the apparatus including a casing including a gas-permeable anode plate being made of a cellular material, a cathode plate, both facing each other and being separated by an electrolyte chamber, the gas-permeable anode plate being made of a cellular material including a plurality of cells, each cell being delimited by a circumferential wall and being open on the two opposite sides of the gas-permeable anode plate, the circumferential wall being made from a plurality of metallic sheets which are interlocked together with interlocking means.

The utility model relates to the technical field of boards, in particular to a composite board, which comprises a buffer layer, a heat insulation layer and a heat insulation layer. The modified layers are arranged on the two sides of the buffer layer, and each modified layer comprises a fiber reinforced material layer. The composite board has the advantage of light weight and certain mechanical properties, and has the benefit of reducing cost; compared with a traditional aluminum alloy material, the light weight degree of the composite board can be larger than 92%, and compared with a traditional glass fiber injection molding fiber, the light weight degree of the composite board can be larger than 85%.

This method provides a more efficient way to produce extracellular vesicles from minimal cellular material, including not only individual cells in suspension but also cells in a three-dimensional structure. [Solution] The present invention provides a method for producing extracellular vesicles from producing cells, comprising: a) placing producing cells in a liquid culture medium in a container having a baffle structure inside; b) rotating the container, thereby generating extracellular vesicles from the producing cells; and c) collecting the generated extracellular vesicles, wherein step b) of rotating the container includes a sub-step of repeatedly changing the rotational motion of the container.

The invention belongs to the field of power-resistant wave-absorbing materials, and particularly relates to an electromagnetic-thermal performance analysis method of a honeycomb wave-absorbing material. Aiming at electromagnetic-thermal multi-physical field performance evaluation of the wave-absorbing honeycomb material, a complex porous multi-scale wave-absorbing honeycomb material is equivalent to a uniform block wave-absorbing material, equivalent electromagnetic parameters and equivalent thermal physical parameters are deduced, and then an equivalent electromagnetic-thermal analysis model is established; the method is not only suitable for single-layer uniform honeycomb wave-absorbing materials, but also suitable for multi-layer gradient gradient honeycomb wave-absorbing materials. According to the electromagnetic-thermal performance analysis method of the honeycomb wave-absorbing material, calculation precision and efficiency are both considered, fine modeling of the honeycomb structure is not needed, grid division of the equivalent block is simple, the number of grids is small, the electromagnetic-thermal performance of the honeycomb is efficiently and rapidly evaluated, and the method is suitable for large-scale popularization and application. And a support is provided for electromagnetic-thermal integrated collaborative design of the honeycomb wave-absorbing material in a high-power application scene.

A kit of parts for manufacturing at least part of a cellular core of a wind turbine blade. The kit of parts includes a plurality of core sections 102, 104 composed of cellular material, each core sect

An optical detection assembly for monitoring a fluid in a vessel includes a light source, a light detector array and a controller programmed to receive the light transmission intensity signals from the light detector array over a predetermined time interval, measure light transmission intensity over the predetermined time interval based on the light transmission intensity signals, calculate a frequency and / or an amplitude of the light transmission intensity signals over the predetermined time interval, compare the calculated frequency to a threshold frequency and / or the calculated amplitude to a threshold amplitude, and determine whether cellular material is present in the fluid based on the comparison of the calculated frequency to the threshold frequency and / or the calculated amplitude to the threshold amplitude.

The invention discloses a preparation method and application of a high-performance environment-friendly honeycomb material. The preparation method specifically comprises the following steps: firstly, cutting a rigid polyurethane foam board into a trapezoidal core material with a specific specification; roller-coating mixed glue containing epoxy resin, a reactive diluent, an imidazole latent curing agent and a modified inorganic flame retardant on two sides of the alkali-free glass fiber cloth through a dipping and gluing process, and combining vacuum treatment to prepare dipped glass fiber cloth; then, the trapezoid core material wraps the impregnated glass fiber cloth and is vertically staggered to build an integral honeycomb carrier, and the honeycomb profile is formed through heating, pressurizing and curing; and finally, cutting and slotting to obtain a finished product. The high-performance environment-friendly honeycomb material effectively solves the problem that an existing material is insufficient in mechanical property and flame retardant property, and can be widely applied to the fields of building partition walls and cold-chain logistics.

The present invention discloses a method for preparing high-temperature resistant, broadband wave-absorbing inorganic polymer-based composite material components by 3D printing. The method is to solve the problem of low heat resistance temperature of existing aluminum wave-absorbing honeycomb materials. The method for preparing inorganic polymer-based composite material components by 3D printing includes the following steps: 1. adding aluminum hydroxide powder to a phosphoric acid activator solution, heating the solution for reaction, and then adding a ceramic powder containing aluminum to obtain an inorganic polymer slurry; 2. adding wave-absorbing particles to the inorganic polymer slurry; 3. adding a rheology control agent to the inorganic polymer-based composite material slurry; 4. performing additive manufacturing on the modified inorganic polymer-based composite material slurry using an extrusion-type 3D printer; 5. performing a curing treatment; 6. performing a high-temperature treatment on the composite material blank. The broadband wave-absorbing inorganic polymer-based composite material component prepared by 3D printing of the present invention is resistant to high temperatures and exhibits broadband wave-absorbing characteristics, with a reflection loss of ≤-10dB in the frequency range of 2 to 18 GHz.

The invention relates to a chamber for steam moulding expanded or cellular materials or foams comprising an enclosure comprising at least two parts (3a, 3b), at least one part being movable to allow it to be opened and closed, and the surfaces of which are partially covered with an insulating coating, in particular the inner surface of the enclosure or the outer surface of the steam inlets.

This invention discloses a combined honeycomb design method that can achieve planar boundary curvature matching. The method mainly includes the following aspects: First, the boundary curvature of the target shape is used to divide the area; based on the area division results, appropriate honeycomb materials and honeycomb structures are selected. Simultaneously, deformation analysis is performed on the honeycomb structure to determine the relationship between the honeycomb angle, Poisson's ratio, and lateral displacement, obtaining the influence law of the honeycomb angle on deformation and Poisson's ratio, and establishing a mathematical model of the relationship between honeycomb angle, Poisson's ratio, and deformation. Further, based on the combined honeycomb boundary connection method, a suitable connection method is selected, and finally, honeycombs of different types and geometric parameters are filled into the corresponding areas. The design method of this invention is simple to operate, has a clear design mechanism, avoids a large amount of mechanical and mathematical calculations, and can quickly and accurately match complex planar states, possessing a wide range of applications and practical value.

The application provides a paper-folding type honeycomb energy-absorbing material and a preparation method thereof. The paper-folding type honeycomb material is obtained by spatial topology of a paper-folding type honeycomb cell. The honeycomb cell can be divided into two connected cells and two Miura cells. The upper, middle and lower neck ends of the honeycomb cell are regular hexagons, and the three regular hexagons are congruent. The honeycomb cell is axisymmetric in the height direction according to the central plane. When the paper-folding type honeycomb is subjected to out-of-plane pressure, the honeycomb will deform due to external compression, achieving the effect of energy absorption and shock absorption. Based on the principle of paper cutting, a paper-folding type honeycomb energy-absorbing material preparation method is provided. The honeycomb sheet is cut into a predetermined shape by a machine cutter, the sheet is bent into a corrugated sheet through a fixed folding mode, and the corrugated sheet is glued to form a paper-folding type honeycomb. This method is expected to realize mass production of the paper-folding type honeycomb energy-absorbing material.

Provided herein are composite scaffold biomaterials including two or more scaffold biomaterial subunits, each including a decellularized plant or fungal tissue from which cellular materials and nucleic acids of the tissue are removed, the decellularized plant or fungal tissue having a 3-dimensional porous structure, the two or more scaffold biomaterial subunits being assembled into the composite scaffold biomaterial and held together via gel casting using a hydrogel glue; via complementary interlocking geometry of the two or more scaffold biomaterial subunits; via guided assembly based biolithography (GAB); via chemical cross-linking; or any combinations thereof. Methods for producing such scaffold biomaterials, as well as methods and uses thereof, are also provided.

Disclosed herein, inter alia, are devices and methods for efficient transfer and analyses of cellular material, tissue samples, such as tissue sections.

The application relates to the technical field of surface defect detection, and discloses a detection device and a detection method for surface tearing and crushing defects of honeycomb materials, the method comprising the following steps: extracting a morphological line diagram of a honeycomb material to be detected according to a to-be-detected image; splitting the morphological line diagram into a plurality of to-be-detected subgraphs with the same shape; extracting a to-be-detected feature vector of the to-be-detected subgraph through a trained feature extraction network; inputting the to-be-detected feature vector into a Gaussian model to obtain a Gaussian probability of the to-be-detected subgraph, wherein the Gaussian model is obtained by fitting feature vectors of a plurality of defect-free training subgraphs; restoring a plurality of to-be-detected subgraphs into the to-be-detected image, and marking and outputting a detection result of the restored to-be-detected image based on the Gaussian probability. The embodiment of the application realizes automatic detection of whether tearing and crushing defects exist on the surface of the honeycomb material to be detected, and improves the detection efficiency.

Embodiments of the present application provide a method and device for constitutive model construction and parameter optimization of honeycomb materials, computer equipment and medium, relating to the technical field of electronic digital data processing, wherein the method comprises the following steps: obtaining original experimental data sets generated by mechanical experiments of the honeycomb material under multiple different working conditions; fitting to obtain a shape function representing the stress-strain relationship under a reference working condition, constructing a density function representing the influence of density on mechanical properties, using an exponential nonlinear function, constructing a strain rate function representing the influence of strain rate on mechanical properties, and constructing a temperature function representing the influence of temperature on mechanical properties; constructing a constitutive model of the honeycomb material based on multi-factor correction factors; taking the minimum mean square error between the stress-strain curve predicted by the constitutive model and the target curve as the optimization target, performing global iterative optimization and outputting. Through the constructed constitutive model, the problem of strong dependence of traditional model parameter fitting and poor universality is solved.

According to the flexible material processing method based on the removable filler, the phase change salt serves as a strengthening component, strengthening supporting during flexible material processing and efficient and convenient removal after processing are achieved by controlling the phase state of the phase change salt, the problem that a honeycomb material is prone to deformation during processing can be effectively solved, and the processing quality of the honeycomb material is improved. And operation is simple, cost is low, and removal is easy. Furthermore, a controllable initiation curing system is added into the filling solution at the same time, the supporting strength of the filler is greatly improved through a dual curing and strengthening synergistic mechanism, the process is simple and convenient, removal is efficient, environmental protection is achieved, and the problem that the flexible material is prone to deformation in the machining process is effectively solved.

There is provided a kit of parts for manufacturing at least part of a cellular core of a wind turbine blade The kit of parts includes a plurality of core sections (102, 104) composed of cellular material, each core section (102, 104) having a peripheral surface (111) which comprises a first side face (106), a second side face (108) and a third side face (110). Each core section (102, 104) has at least one hole (126) extending inwardly from at least one of first and second end faces (122, 124). The kit of parts further includes at least one dowel (130) composed of cellular material, the dowel (130) being shaped and dimensioned to fit within a respective hole of each of two adjacent core sections (102, 104) so that the at least one dowel (130) connects together the two adjacent core sections (102, 104).