Abstract: An acoustic core may include an array of resonant cells configured as a plurality of resonant cell groups. The resonant cell groups may include a plurality of resonant cells configured as a partitioned resonant cell that include a converging resonant cell and a diverging resonant cell. The converging resonant cell and the diverging resonant cell may be defined by a plurality of cell walls integrally formed with one another and a partition integrally formed with the plurality of cell walls. The partition may at least partially delimit the converging resonant cell from the diverging resonant cell. The converging resonant cell may define an upper resonant space delimited by the partition and a top face of the array of resonant cells. The diverging resonant cell may define a lower resonant space delimited by the partition and a bottom face of the array of resonant cells.

Abstract: Acoustic turbofan airfoil apparatus are disclosed. An example apparatus includes a platform of a turbofan engine, the platform including perforations to receive acoustic waves, acoustic chambers protruding from a first side of the platform, the acoustic chambers aligned with the perforations in a radial direction defined by the turbofan engine, the acoustic chambers to attenuate the acoustic waves, and an airfoil protruding from a second side of the platform opposite the first side of the platform.

Abstract: An acoustic panel is provided that includes a perforated first skin, a second skin and a core. The core is between and connected to the perforated first skin and the second skin. The core includes a plurality of chambers, a first corrugated structure and a second corrugated structure. The chambers includes a first chamber. The first chamber extends from the perforated first skin, through the first corrugated structure and the second corrugated structure, to the second skin.

Abstract: The invention relates to a manufacturing method for a crash frame of a battery compartment for electric drive vehicles by using metallic sheets which are arranged on top of one another and fixed together and which form in a following step a space by using an inner active media forming process to create walls of a crash frame whereby the space works as a deformation space to protect the battery modules inside the battery compartment against an impact. The invention further relates to the use of the crash frame for a battery compartment.

Abstract: Insulation panel made from an insulation panel precursor comprising at least one modified layered silicate.

Abstract: Described herein is a panel with a layered structure having: a first outer layer; an intermediate layer; a second outer layer; and an interface layer between the intermediate layer and the second outer layer, the interface layer being configured for enabling adhesion of the layers between which it is set, wherein the second outer layer is obtained as a fabric with continuous fibres that have a tensile modulus of elasticity higher than or equal to 40 GPa measured according to the ASTM C1557 standard.

Abstract: An annular or semi-annular acoustic attenuation structure includes an inner skin and an outer skin, defining between them an annular or semi-annular volume, and a plurality of partitions extending in the space in a radial direction perpendicular to the inner and outer skins and in a circumferential direction. The inner and outer skins and the partitions are made of composite material including a fibrous reinforcement densified by a matrix. The fibrous reinforcement of each partition includes yarns or fibers extending into the fibrous reinforcement of at least one of the inner or outer skins.

Abstract: Instead of focusing solely on material insulation as a solution for energy efficiency, a wall construction, or other opaque structure of a building, can include a sequence of highly reflective insulation elements that block heat energy exchange across air spaces, combined with material insulation supporting a heat energy highly reflective surface of the highly reflective insulation element. A highly reflective insulation element is formed by enclosing an air space between surfaces, of which one or both of those surfaces is a heat energy highly reflective surface. The heat energy highly reflective surface can be provided by a layer applied to a material. In an opaque building structure, two or more such highly reflective insulation elements, using three or more heat energy highly reflective surfaces, and two or more air spaces, where the material supporting at least one of the heat energy highly reflective surfaces is a material insulator, can improve energy efficiency.

Abstract: A method of preparing a casting article for use in manufacturing a gas turbine engine part according to an exemplary aspect of the present disclosure includes, among other things, communicating a powdered material to an additive manufacturing system and preparing a casting article that includes at least one trunk and a skin core that extends from the at least one trunk out of the powdered material. A casting article is also disclosed.

Abstract: A method, a food container, a lid, and absorbent pad for a food container that actively removes moisture in the food container without changing the food temperature inside the container in a meaningful way are disclosed herein. The removal of moisture is achieved by introducing a cold spot (below the dew point temperature) at or within the absorbent pad, which is inside the food container. This cold spot forces condensation of moisture from the air to form locally on the absorbent pad. The condensed moisture is then captured by an absorbent element placed below, and preferably adjacent to/collocated with, the cold spot and between the cold spot and the stored food. The cold spot is preferably achieved by a properly chosen frozen substance such as an ice cube or a frozen gel packet or ice suspended inside an absorbent pad.

Abstract: A sound absorber is configured as a rectangular hexahedral box and forms a porous double-layer Helmholtz resonance sound absorbing structure, at the same time, the sound absorber in the form of a box forms a structural resonance sound absorbing device itself, and the first-order natural mode frequency of the device is identical to that of a wheel air chamber. When the box-type sound absorbing structure is assembled in a wheel, double functions of absorbing acoustic resonance of the wheel air chamber under the organic combination of Helmholtz resonance sound absorption and structural resonance sound absorption can be realized.

Abstract: An acoustic panel comprising a cellular structure, such as a honeycomb structure, having cells that open at least onto a first frontal face of the structure. The panel comprises a capsular skin which is fastened to the first frontal face of the cellular structure next to a plurality of cells. The capsular skin including a continuous layer of material, in one piece, forming capsules that extend into the cellular structure. At least one channel is provided at the apex of each capsule for the passage of acoustic waves. Such a panel effectively attenuates the noise of aircraft engines, in particular, the low frequencies. It is extremely easy to manufacture industrially, the capsular skin being able to be obtained by molding with polymerization in situ, the polymerizable material then adhering to the cellular structure while it polymerizes.

Abstract: A nanoscale plate structure includes base plates and rib plates with nanoscale thickness and macroscopic lateral dimensions. The base plate resides in the first plane, the ribs can reside out-of-plane and form at least one strengthening rib, and additional base plates can reside in planes parallel to the first plane. The strengthening rib can be patterned such that there is no straight line path extending through a lateral dimension of the plate structure that does not intersect the at least one base plate and the at least one strengthening rib. The plates and ribs used in the structure have a thickness between about 1 nm and about 100 nm. The plate structures can be fabricated using a conformal deposition method including atomic layer deposition.

Abstract: CERMET fuel element includes a fuel meat of consolidated ceramic fuel particles (preferably refractory-metal coated HALEU fuel kernels) and an array of axially-oriented coolant flow channels. Formation and lateral positions of coolant flow channels in the fuel meat are controlled during manufacturing by spacer structures that include ceramic fuel particles. In one embodiment, a coating on a sacrificial rod (the rod being subsequently removed) forms the coolant channel and the spacer structures are affixed to the coating; in a second embodiment, a metal tube forms the coolant channel and the spacer structures are affixed to the metal tube. The spacer structures laterally position the coolant channels in spaced-apart relation and are consolidated with the ceramic fuel particles to form CERMET fuel meat of a fuel element, which are subsequently incorporated into fuel assemblies that are distributively arranged in a moderator block within a nuclear fission reactor, in particular for propulsion.

Abstract: A method for manufacturing a soundproofing assembly involving providing a first panel of honeycomb structure, fastening an intermediate plate against a second face of the first panel, adhesive-coating a layer of adhesive on the intermediate plate, providing a second panel of honeycomb structure, bonding the first face of the second panel to the layer of adhesive, and perforating the intermediate plate and the layer of adhesive through the cells of the first panel or the cells of the second panel at the bonding zone of the second panel. Such a method makes it possible to save time by dispensing with additional preparation steps.

Abstract: A joint for a composite frame includes a first composite rod, a first shell abutting the first composite rod, a second shell abutting the first composite rod and disposed opposite the first shell relative to the first composite rod. The first and second shells are joined together such that composite rod is fixed therebetween. A method of forming joints of composite frame includes forming a composite frame by interconnecting a plurality of composite rods formed by an Automated Fiber Placement (AFP) manufacturing method around a mandrel, applying a first shell to the plurality of composite rods at a first location where composite rods are interconnected, applying a second shell at the first location opposite the first shell relative to the composite rods, and joining the first and second shells together with the composite rods at the first location disposed between the first and second shells.

Abstract: A sandwich panel for an aircraft turbojet nacelle includes an outer skin in contact with an air flow, an inner skin opposed to the outer skin, and an intermediate system comprising partitions connecting the inner and outer skins so as to form cells, the inner skin of at least one cell having at least one corrugation configured to allow the materials making up the sandwich panel to deform in the event of thermal variation.

Abstract: An acoustic attenuation liner includes a porous coating with a mesh structure, an acoustically absorbent material covered with the porous coating and having a first volume, and at least one cavity created between the acoustically absorbent material and the porous coating and which has a second volume, such as Vcav>3%, wherein the mesh structure has wires separating between them openings passing through the structure, some of which have, when flat, a minimum elementary surface area.

Abstract: A method for forming a fiber-reinforced thermoplastic control surface includes forming first and second skins from a fiber-reinforced thermoplastic resin. The method further includes overmolding fiber-reinforced thermoplastic features onto the first skin and/or second skin, including stiffener structures, sidewalls, and/or hinges. The method further comprises welding or consolidating the first and second skins together, along with the associated internal features overmolded thereon to form a single-piece, stiffened, fiber-reinforced thermoplastic control surface.

Abstract: A sound absorbing and insulating member alternately brought into contact with a first partition member and a second partition member. The sound absorbing and insulating member has a plurality of hollow protrusions protruding so as to traverse a gap between the partition members. There is a first and second space between the first and second partition member. The first space is formed in each protrusion and is closed by the first partition member. The second space is provided between adjacent protrusions and is closed by the second partition member. The first and second spaces communicate with each other through a communication part formed as a part of the protrusion. The communication part is configured to communicate an inside of the protrusion with an outside. An opening of the communication part opened to the second space is provided at a side wall of the protrusion.

Abstract: A support grid for filling material packing and to a component set for producing such a support grid, including support strips and top strips which are inclined relative to one another in opposite directions. The support strips and top strips intersect one another, the inclination of each top strip is defined by at least one top strip receiving groove which is made in at least one support strip and in which the top strip is received, and the orientation of each support strip is stabilised by at least one support strip receiving groove in which the support strip is received.

Abstract: It is a feature of a porous body (10, 20) comprising a three-dimensional network of node points (200) joined to one another by struts (100), and a void volume (300) present between the struts (100), that the struts (100) have an average length of ?200 to ?50 mm, the struts (100) have an average thickness of ?100 ?m to ?5 mm, and that the porous body has a compression hardness (40% compression, DIN EN ISO 3386-1: 2010-09) in at least one spatial direction of ?10 to ?100 kPa. The porous body according to the invention combines the advantages of a conventional mattress or cushion with ventilatability which results from its porous structure and is not achievable in conventional foams. The invention further relates to a method of producing such a porous body (10, 20) and to an apparatus comprising said body (10, 20) for supporting and/or bearing a person.

Abstract: An acoustic liner is provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer defining a cellular structure disposed between the face sheet and the back sheet. The core layer includes a plurality of first resonant cells coupled to the back sheet. Each of the first resonant cells includes a first cell wall coupled to the back sheet along a first cell wall base edge, the first cell wall extending from the back sheet toward the face sheet, the first cell wall further coupled to the face sheet along a first cell wall top edge, wherein the first cell wall of each of the first resonant cells comprises a surface extension that extends from a surface of the first cell wall.

Abstract: A hydrophobic film is provided. The hydrophobic film includes a flexible substrate; a hydrophobic layer located on the flexible substrate, a heating layer, a first electrode and a second electrode spaced apart from the first electrode. The hydrophobic layer comprises a base and a patterned bulge layer on a surface of the base away from the flexible substrate. The heating layer is on a surface of the flexible substrate away from the hydrophobic layer. The first electrode and the second electrode are electrically connected to and in direct contact with the heating layer.

Abstract: Embodiments of the disclosure are directed towards a composite stiffener that is incorporated into panelized products to create stronger bonding, greater adhesion between laminated layers and less warping sandwich panels. In addition, the resulting products incorporating composite stiffeners can be lightweight, yet stronger than other lightweight panels.

Abstract: A power conversion device includes a base, a first stage, a first support portion, and a support member. At least one first power conversion unit is mounted on the first stage. The first support portion extends in a normal direction of the base and is fixed to the base and the first stage. The support member includes a first panel and a second panel. The first panel and the second panel are disposed on the base to support the first stage in the Z-axis direction. The first panel and the second panel are integrally formed to intersect with each other.

Abstract: A ceramic honeycomb body comprising a peripheral skin layer and a fiber extending around the outer periphery of a honeycomb core, the fiber embedded in the peripheral skin layer is described. A method of making a honeycomb body having a fiber extending around the outer periphery of a honeycomb core and embedded in the peripheral skin layer is also described.

Abstract: An assembly for a gas turbine engine according to an aspect of the present disclosure includes a metallic damper including a first contact surface and a gas turbine engine component. The gas turbine engine component includes a main body extending in a first direction between a gaspath surface and a second contact surface. The first and second contact surfaces oppose each other along an interface extending in a second direction. The first and second contact surfaces are dimensioned to contact each other along the interface in a hot assembly state. The main body is established by a composite including fibers in a matrix material. At least some of the fibers are arranged to establish a plurality of cooling passages aligned with the interface relative to the second direction. A method of damping for a gas turbine engine is also disclosed.

Abstract: A Helmholtz resonator having a plurality of resonator chamber modules formed into an array. The array is configured to dampen sound. A module of the plurality of resonator chamber modules includes a first chamber and a second chamber. The first and second chambers have different lengths and are tuned to dampen different frequencies of sound.

Abstract: A trailer frame constructed from a polymer that cannot rust or corrode. The trailer employs a support plate that reinforces an inner and outer wall forming beams that includes a matrix of crisscrossed support walls. A top deck is releasably secured to the frame allowing refinishing of the trailer should the deck be damaged without replacement of the frame. Alternatively the top deck can be a foundation for an enclosure, shield, fence or any other known securement structures.

Abstract: A seat assembly that includes a main body portion having a seat portion and a back portion extending upwardly from the seat portion. The main body portion includes an inner layer and an outer layer. A middle layer is positioned between the inner and outer layers. The middle layer includes a plurality of rings that are not co-axial with one another.

Abstract: A ceramic honeycomb structure includes: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the plurality of cells to form a fluid flow path extending from one end face to other end face. The honeycomb structure contains: 1) particles including one or more selected from silicon carbide, silicon nitride and aluminum nitride; and 2) silicon doped with a dopant. The dopant is a Group 13 element or a Group 15 element. The honeycomb structure has a silicon content (B) of from 20 to 80% by mass, and the honeycomb structure has a porosity of 30% or less.

Abstract: A silicon carbide ceramic honeycomb structure having large numbers of axially penetrating flow paths partitioned by porous silicon carbide cell walls, the cell walls comprising silicon carbide particles as aggregate and binder layers for binding the silicon carbide particles, the binder layers having at least a cordierite phase and a spinel phase, and the molar ratio M1 of the cordierite phase [=cordierite phase/(cordierite phase+spinel phase)] being 0.4-0.9.

Abstract: A substrate processing method of thinning a substrate having a protective tape attached on a front surface thereof includes measuring a thickness of the protective tape; and grinding, by using a grinder, a rear surface of the substrate held by a substrate holder.

Abstract: A method for producing a honeycomb structure 1 having a slit 12 includes: a first step of preparing a honeycomb structure 1 being free from slit, and forming the slit 12 leaving at least a part of the outer peripheral wall 10 or the partition wall 11; after the first step, a second step of filling the slit 12 with a joining material 13; and after the second step, a third step of removing at least a part of the outer peripheral wall 10 or the partition wall 11 left in the first step to obtain the honeycomb structure 1 having the slit 12 that divides the honeycomb structure 1.

Abstract: Helmets and methods for manufacturing a helmet are described. An example helmet includes a shell and a shock absorbing liner attached to the shell. The shock absorbing liner includes a cavity. The helmet a shock absorbing insert formed of a material different than the material of the shock absorbing liner. The cavity is configured to retain the shock absorbing insert.

Abstract: A shipping pallet apparatus (10) comprises an upper deck (12) comprising a plurality of corrugate sheets bonded in lamination to one another, a plurality of stringers (18) or blocks (19) adhesively secured to a lower surface of the upper deck (12), and a plurality of reinforcing plates (16) secured between adjacent corrugate sheets of the plurality of corrugate sheets, each reinforcing plate (16) of the plurality of reinforcing plates positioned between two stringers (18) or two blocks (19) of the plurality of stringers or blocks to define a medial gap (32) and a lateral gap (34), and each reinforcing plate (16) defining an impact edge aligned with an edge of the upper deck (12) to absorb a force from a tine.

Abstract: A pallet assembly includes a top plate and a runner having four side surfaces. The pallet assembly includes a pallet integrated module mounted to the pallet assembly and configured to collect journey data for transmission to a cloud. The pallet assembly includes a load-force plate disposed between the top plate and the runner. The load-force plate is configured to increase load bearing capacity of the top plate while adding strength to the pallet assembly. An antenna for the pallet integrated module is integrated with the load-force plate. The pallet assembly includes multiple load blocks disposed between the load-force plate and the runner. The load blocks are symmetrically positioned such that a forklift can enter from any of the four side surfaces of the runner. The runner is disposed under the load blocks. The pallet assembly includes a coating material that protects shipment of products that require sanitary conditions.

Abstract: A foldable insulated bag includes: a bag main body including a bottom surface portion and a side surface portion; a lid body attached to the bag main body; and a bottom surface insulating member and a side surface insulating member provided to the bag main body, wherein the side surface insulating member has an end portion, closer to the bottom surface insulating member, provided with a fold back portion that is configured to be provided to cover at least a part of the bottom surface insulating member during use of the insulated bag.

Abstract: A laser-based coating removal apparatus to remove a coating from a surface without damaging the surface. The apparatus comprises a laser source to provide a laser light, a routing element coupled to the laser source and configured to direct the laser light onto a target region of the surface thereby removing the coating from the target region, and a detection element to detect the coating as the coating separates from the target region of the surface. The detection element is able to prevent the surface from being damaged by limiting or eliminating the laser light directed onto the target region after all the coating has been removed. The detection element is able to detect the separation of the coating from the target region by detecting incandescence, acoustic signature, motion, fluorescence and/or chemical properties produced by the separation of the coating from the surface.

Abstract: An exhaust gas purification catalyst including an alkaline-earth metal carried on a porous carrier in a highly dispersed state. The catalyst layer of the exhaust gas purification catalyst has an alkaline-earth metal carrying region including a porous carrier, Pt, and a sulfuric acid salt of at least one alkaline-earth metal carried on the porous carrier, wherein a value of RAe/Pt is 0.5 or more, where RAe/Pt represents the Pearson's correlation coefficient calculated using ? and ? in each pixel obtained by, for a cross section of the region, performing the area analysis by FE-EPMA under the conditions of: pixel size 0.34 ?m×0.34 ?m; and number of measured pixels 256×256; and measuring an intensity (?: cps) of a characteristic X ray of an element (Ae) of the alkaline-earth metal and an intensity (?: cps) of a characteristic X ray of Pt for each pixel.

Abstract: A comfort layer for a bedding or seating product has liquid pods sandwiched between plies of fabric. The plies of fabric are joined with seams thereby creating pockets, at least one liquid pod being inside each pocket. Each seam joining opposed plies of fabric around each of the liquid pods of the comfort layer may be segmented or solid, depending upon the fabric and type of seam.

Abstract: An athletic footwear with improved midsole that is having a helical network. The helical network can morph itself under compressive force. The helical network is made from units of an hourglass shape geometry, each unit having an upper member and a lower member. Each unit is of a wireframe geometry that is integrated with adjacent units to form a networked layer. When an external pressure is applied to the networked layer, such as when the feet wearing the footwear land on a ground, the wireframe legs in the upper member and lower member twists for providing cushioning and resiliency.

Abstract: A device for treating exhaust gases of an internal combustion engine includes: a heating disk arranged in a housing; and a main catalytic converter arranged downstream of the heating disk in the flow direction in the housing. The flow can pass through the heating disk and the main catalytic converter in the flow direction along a plurality of flow channels. The heating disk is formed from a metallic honeycomb body and the main catalytic converter is formed from a ceramic honeycomb body fixed in relation to the housing by a fixing structure. The heating disk is electrically contacted by an electrical feedthrough guided through the housing from the outside to the inside.

Abstract: The invention relates to a device for hydroentangling and/or structuring webs that includes an suctioning rotating drum and a structured shell, including at least two rings which can be pushed on and attached to the drum, is disposed at a distance from the cylindrical surface of the drum around. A web can be at least partially looped around the structured shell. At least one water bar including a nozzle strip with a plurality of nozzles is arranged relative to the structured shell to entangle and/or to structure and/or to perforate the web by the water jets. The invention further relates to the structured shell.

Abstract: A splash pad has a plurality of interlocking pallet assembly modules with each pallet assembly module having a supporting body and a water permeable layer and each water permeable layer connects to at least one adjacent water permeable layer to form a continuous water permeable walking surface. At least one tubular dispenser has at least one nozzle extending through the splash pad continuous water permeable walking surface. A pumping station has at least one pump and at least one water intake device. The splash pad, the tubular dispenser, and the pumping station inserts into a recession having water therein. The water intake device provides water from the recession to the at least one pump, so that the pump can drive water through the tubular dispenser to project through the nozzle onto the splash pad continuous water permeable walking surface.

Abstract: A drive shaft extending along a central axis is configured to operate under dominant unidirectional torsional load. The drive shaft has an asymmetrically-structured composite body which is configured to have a greater torque-carrying capability in a first torsional direction than in a second torsional direction that is opposite the first torsional direction.

Abstract: A method, comprising i) contacting an aqueous solution of an organic ligand salt of the formula AX(L?X) with a mesoporous material (MPM) to form an impregnated mesoporous salt material of the formula AX(L?X)/MPM, ii) treating the impregnated mesoporous salt material with an aqueous acidic solution to form an impregnated mesoporous acid material of the formula HX(L?X)/MPM, iii) contacting an aqueous solution of a metal precursor of the formula M+y(B)y with the impregnated mesoporous acid material to form an impregnated mesoporous metal organic framework precursor of the formula [M+y(B)y][Hx(L?x)]/MPM, and iv) at least one of 1) heating the impregnated mesoporous metal organic framework precursor in the absence of a solvent or 2) exposing the impregnated mesoporous metal organic framework precursor to a volatile vapor in the absence of a solvent such that the heating or the exposing forms a hybrid material of the formula (M+yL?x)/MPM, wherein the hybrid material comprises a nano-crystalline metal organic framew

Abstract: A rib-stiffened composite structure includes a composite face sheet having a continuous reinforcing fiber in a polymer matrix. A polymer core is in a grid pattern disposed on the composite face sheet, the grid pattern having a first series of paths crossing over a second series of paths. Material voids are formed in the spaces between the series of paths. A composite rib-cap is disposed upon an upper surface of the polymer core. The composite rib-cap includes a continuous reinforcing fiber in a polymer matrix. The fibers of the continuous reinforcing fiber of the polymer matrix of the composite rib cap are oriented in a direction along the first and second series of paths of the grid pattern of the extruded polymer core.

Abstract: A display device according to the present embodiment includes a display panel; and a corrugated panel facing a rear surface of the display panel and having a corrugated core disposed between a front skin and a rear skin.