Abstract: The disclosure relates to a cell electrochemical sensor based on a 3D printing technology and application thereof and belongs to the technical field of electrochemical sensors and toxin detection. The cell electrochemical sensor of the disclosure is constructed based on a 3D printing technology, and the construction method comprises the following steps: precisely depositing a cell/carbon nanofiber/GelMA composite hydrogel on a working electrode of a screen-printed carbon electrode through 3D printing, and carrying out curing to obtain the cell electrochemical sensor. The disclosure constructs a cell electrochemical sensor with a three-dimensional cell growth environment and rapid and sensitive response. The cell electrochemical sensor constructed by the disclosure can be used for quickly and effectively determining the combined effect type and effect degree of deoxynivalenol family toxins by combining an electrochemical impedance method and a combination index method.

Abstract: An apparatus for forming a container from a preform and delivering a predetermined volume of a liquid end product, formed by the addition of first and second liquid products, into the container. The apparatus includes a heating oven to heat the preform, a mold defining a cavity in the shape of the container, a stretch member coupled to an actuator to stretch the preform in the mold, an injection head configured to inject the second liquid product through the mouth of the preform so as to cause expansion of the preform within the mold thereby obtaining the container, and a preform filler to at least partially fill the preform with the first liquid prior to injecting of the second liquid product and before expanding of the preform into the container.

Abstract: Provided is a method for manufacturing a container 10 made of resin, the method including an injection molding step S1, a temperature adjustment step S2, and a blow molding step S3. In the temperature adjustment step S2, a preform 11 is accommodated in a cavity mold 31, an air introduction member 32 is brought into airtight contact with the preform 11, the air is supplied from a blowing port of the air introduction member 32 into the preform 11, and the air is discharged from a discharge port of the air introduction member 32 to an outside of the preform 11, so that the preform 11 is in close contact with an inner wall of the cavity mold 31 and is cooled.

Abstract: A method for producing products made of composite material, including the following operating steps: placing between a first mould and at least a second mould at least one layer of composite material fibre fabric and at least a first layer of composite material fibres, wherein a layer of non-polymerized, composite material resin, substantially free of hardener, is placed between the fabric layer and the first mould; injecting resin and hardener between the first mould and the second mould to impregnate the layer and the first fibre layer with the injected resin and polymerizing the injected resin and the resin layer with the injected hardener. A semi-finished item which can be used in this method and to a product made using this method and/or with this semi-finished item.

Abstract: A method of producing multiple batches of objects by stereolithography, includes the steps of: (a) dispensing an initial or subsequent batch of dual cure resin into a stereolithography apparatus (11), the resin including a light polymerizable component and a heat polymerizable component; (b) producing an intermediate object by light polymerization of the resin in the apparatus (12), wherein the intermediate object retains excess resin on a surface thereof; then (c) separating excess resin from the intermediate object (13); (d) blending the excess resin with additional dual cure resin to produce a subsequent batch of dual cure resin (15); (e) repeating steps (a) through (c), and optionally repeating step (d), to produce additional object(s); and (f) baking the objects, together or separately, to produce multiple batches of objects (14).

Abstract: The invention relates to a method for making a nonwoven fabric comprising forming polymer fibers from a melt of the polymer material and using these fibers to obtain a nonwoven fabric during a subsequent nonwoven fabric formation procedure, wherein the melt of the polymer material comprises a melt additive, wherein the method comprises thermal bonding at a temperature higher than 40° C. below the melting point of the polymer material and, additionally, one or both of the following steps: a. improving the mobility of the additive by heat-treating the nonwoven fabric at 100° C. or more for 0.1 seconds or more after the nonwoven fabric formation procedure and/or including a filler having a higher thermal conductivity than the polymer material to the polymer material; b. influencing the polymer crystallinity by including a nucleating agent, branched polymers and/or random co-polymers to the polymer material.

Abstract: An additive manufactured part is formed as a solid body of material including additive manufacturing powder, binder material supporting the powder in the shape of the solid body, and strengthening resin infused within the solid body. The additive manufacturing powder can be sand. The infused resin can be a two-part resin wherein an inert gas is added to the mixture of the two parts of the two-part resin during mixing. The infused resin can be infused inwardly from the peripheral surface of the solid body and can penetrate partially or fully through the thickness of the solid body.

Abstract: A mobile polystyrene foam waste recycling method and system are disclosed. The system includes a mobile housing or mobile container that houses a polystyrene foam densifying machine. The foam densifying machine reduces the size of Expanded Polystyrene (EPS) and PS polystyrene material into a marketable product. The mobile container includes secure access doors, electrical connections, lighting, exhaust fans, and storage bins for EPS waste. The waste recycling system provides a mobile outdoor or indoor recycling facility and collection center where EPS/PS may be recycled instead of being sent to a landfill.

Abstract: A method for manufacturing a hyper-elastic three-dimensional (3D) sandwich panel is disclosed, the method comprising printing a plurality of layers, the plurality of layers comprising a central composite core and upper and lower sandwich face layers; and regulating a temperature of each printed layer to match melting point temperature of a consecutive layer being subsequently printed on top of a previously printed layer, wherein the plurality of layers are printed one layer at a time. The multi-layered and multi-material hyper-elastic three-dimensional (3D) sandwich panel is a central composite rubber core stacked between upper and lower sandwich face layers made of reinforced glass-fiber, wherein the central composite rubber core further comprises a core lower face layer, a central core layer and a core upper face layer.

Abstract: Fixtures for industrial tooling that may be made by additive manufacturing techniques, and systems and methods for making the same, are described. A fixture for industrial tooling may include a plurality of support columns that defines an intermediate area having at least 10% empty space between a contoured surface and a base structure. The fixtures may be made through a draping method instead of a slicing technique. A fixture for industrial tooling may alternatively be made by applying an extruded layer over a core of foam, balsawood, or other lightweight material, through a non-slicing process.

Abstract: A method and apparatus for delaminating a polymer film from a carrier plate is disclosed. The carrier plate is at least partially transparent and has deposited on it a pixelated pattern layer of light-absorptive material, upon which is deposited a layer of light-reflective material. A polymer film, which is to be delaminated, is deposited on the light-reflecting material layer. Next, a pulsed light source is utilized to irradiate through the carrier plate from the side opposite the polymer film to heat the light-absorptive material layer. The heated areas of the light-absorptive material layer, in turn, heat the polymer film through conduction at the interface between the light-absorptive material layer and the polymer film, thereby generating gas from the polymer film by its thermal decomposition, which allows the polymer film to be released from the carrier plate.

Abstract: Systems and methods for producing a preform for a composite member. An exemplary method includes preparing a lay-up of reinforcement layers and thermoplastic interlayers, and transferring the lay-up to a preform tool. The method further includes inducing heat in the preform tool to a transition-temperature range that causes the thermoplastic interlayers to become tacky or viscous, and applying pressure to the lay-up with the preform tool to shape the lay-up into the preform.

Abstract: An additive manufacturing method for fabricating a component having a surface substantially free of imperfections may include providing a mold having a configuration corresponding to the component, and depositing a material on at least one surface of the mold to fabricate the component having the surface substantially free of imperfections.

Abstract: A method of operating an extruder assembly in a three-dimensional object printer translates and rotates an extruder body having an extrusion slot to produce three-dimensional objects more quickly and with greater precision. The method also includes rotating and moving one or more shutter bodies with respect to the extrusion slot to form a continuous filament of material of various sizes and shapes.

Abstract: It is disclosed a method for the production of a sealing module (1) for a pipe or a cable, the sealing module having a hollow body (10) and a plurality of inner layers (11a-11h) superimposed one to the other provided within said body (10), the layers (11a-11h) being removable one from the other to define the size of the cross-section of a housing (14) extending between two opposite surfaces (S1, S2) of the sealing module to house cables or pipes of different sizes, wherein said plurality of layers (11a-11h) are made of a thermoplastic material, or both said body (10) and said plurality of layers (11a-11h) are made of a thermoplastic material. It is also disclosed an apparatus for the production of a sealing module, and a sealing module made of thermoplastic material.

Abstract: According to one embodiment, of the present disclosure, a stereolithography apparatus is a 3D printer of various kinds used to form a solid object (a mockup of a tennis racket or a golf club) on the basis of original design data (CAD data). In this apparatus, markers (MKa, or MKb1 to MKb4) corresponding to one or more sinkers are disposed at one or more positions of an object formed to be lighter than a design weight of the solid object formed on the basis of the original design data. In the structure, one or more sinkers having a certain weight, size, and shape, are disposed in one or more marker positions of the object.

Abstract: The present invention relates to a three-dimensional bioprinter for printing and/or patterning a single type or multiple types of cells into different geometrical arrangements and other three-dimensional structures, such as tissues. The bioprinter comprises multiple heads that can each be loaded with a different cartridge containing a biomaterial or biological material such as cells in a solution or cells in a hydrogel. Each bioprinter head and cartridge has the ability to heat or cool using Peltier technology. The bioprinter also has the ability to auto calibrate on a bed plate configured to accept a petri dish or microtiter plate.

Abstract: An absorbent disposable article, such as a diaper, panty diaper, panty liner, sanitary napkin or incontinence device is disclosed. The article has a porous polymer-based structure obtainable by a process of: (a) depositing and photopolymerizing, layer-by-layer in accordance with a predetermined 3D model, an emulsion having an external continuous phase surrounding droplets of an internal phase having has one or more photopolymerizable monomers and/or oligomers and a photopolymerization initiator; and (b) removing the internal phase from the continuous polymer phase formed from the one or more photopolymerizable monomers and/or oligomers. The process produces a monolithic porous structure having three types of pores: (i) pores resulting from the location from which the internal phase was removed, (ii) pores interconnecting the pores according to (i), and (iii) pores as predetermined by the 3D model. The invention also relates to a method of making the article.

Abstract: The present invention relates to a 3D printer wherein a printing material is placed and hardened on a transparent film and a 3D printing method using the same. The 3D printer of the present invention is composed of the film supplying part to provide a transparent film; the material supplying part to provide a printing material on the transparent film; the photo-hardening part to solidify the printing material provided onto the transparent film as a designed form; and the film collecting part to collect the transparent film and the remaining printing material after the printing material has been hardened by the photo-hardening part.

Abstract: Apparatuses, systems and methods capable of controlling an additive manufacturing print process on an additive manufacturing printer. The disclosed embodiments may include: a plurality of sensors capable of monitoring at least one of an input of print filament to a print head of the printer, and a temperature of a nozzle of the printer, as indicative of a state of the additive manufacturing print process; at least one processor associated with at least one controller and capable of receiving sensor data regarding the monitoring from the plurality of sensors, and comprising non-transitory computing code for applying to the sensor data at least one correct one of the state of the additive manufacturing print process; a comparator embedded in the non-transitory computing code for assessing a lack of compliance of the print process to the correct one of the state; and at least one modifying output of the at least one controller to revise the compliance of the print process to the correct one of the state.