Abstract: Various techniques are provided to utilize nanostructures for process monitoring and feedback control. In one example, a method includes forming a layer of material including nanostructures distributed therein. Each nanostructure includes a quantum dot and a shell encompassing the quantum dot. The shells and quantum dots are configured to emit a first and second wavelength, respectively, in response to an excitation signal. The method further includes applying the excitation signal to at least a portion of the layer of material. The method further includes detecting an emitted signal from the portion of the layer of material, where the emitted signal is provided by at least a subset of the nanostructures in response to the excitation signal. The method further includes determining whether a manufacturing characteristic has been satisfied based at least on a wavelength of the emitted signal. Related systems and products are also provided.

Abstract: A method for preparing an article includes at least a first component of a polyolefin in conjunction with a second component of a polymer made by ring-opening metathesis polymerisation of norbornene type monomers. The method includes pre-treating a surface of the first component, applying a ring-opening metathesis polymerisable mixture of norbornene type monomers and a catalyst to the surface, and curing the ring-opening metathesis polymerisable mixture in contact with the surface, wherein the ring-opening metathesis polymerisable mixture has a ?1000 at 30° C. of more than 9 sec. Articles such as a pipe line field joint or a protective element for a concrete tunnel lining element can be made using the method.

Abstract: A method of forming a mud motor stator having a passage including a first end defining a first opening, a second end defining a second opening and an intermediate portion extending therebetween includes introducing a liner material into the passage at one of the first end and the second end of the stator, inserting a mandrel having a contoured surface into the passage through one of the first end and the second end of the stator, shifting one of the mandrel and the stator relative to the other of the mandrel and the stator, and flowing the liner material over the contoured surface of the mandrel from the one of the first and second ends toward the other of the first and second ends to form a liner on the inner surface of the passage.

Abstract: Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an conduit nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to drag the filament from the conduit nozzle.

Abstract: A bonding jig used for bonding a gas diffusion layer or a fuel cell constituent member including the gas diffusion layer to be sandwiched between separators and an adhesive sheet for joining the separators to the gas diffusion layer or fuel cell constituent member, the bonding jig being capable of simultaneously performing bonding and eliminating fluffy fibers on the gas diffusion layer. The bonding jig includes a loading area (recess) where the gas diffusion layer is loaded when the bonding is performed, and the recess has a plurality of communication holes that communicate with the outside and that are coupled to a suction pump. While the adhesive sheet is placed on the side of the upper face of the bonding jig so as to be integrated with the gas diffusion layer, the suction pump is actuated to eliminate fluffy fibers on the gas diffusion layer.

Abstract: A pneumatic tire comprises at least four main grooves extending in the tire circumferential direction on the tread surface, circumferential land portions and shoulder land portions partitioned and formed by these main grooves, and designation of a mounting direction with respect to a vehicle, wherein a plurality of lug grooves is formed at intervals in the tire circumferential direction in each of the plurality of circumferential land portions, extending in the tire width direction, communicating with the main groove on the vehicle inner side, not communicating with the main groove on the vehicle outer side, and terminating within the circumferential land portion.

Abstract: Layers of build and support material on an intermediate transfer surface are exposed to a solvent using a solvent application station to make the build material tacky, without affecting the support material. Then, the intermediate transfer surface moves past a transfuse station (the transfuse station is positioned to receive the layers after exposure to the solvent) and a platen moves relative to the intermediate transfer surface to contact the platen to one of the layers on the intermediate transfer surface. The intermediate transfer surface transfers a layer of the build material and the support material to the platen each time the platen contacts the layers on the intermediate transfer surface at the transfuse station to successively form a freestanding stack of the layers of build and support material on the platen.

Abstract: A method of manufacture for a carbon/carbon part including a method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing a gaseous reducing agent hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures. A method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures.

Abstract: A heating apparatus includes an emitter that emits light to a thermal expansion sheet that expands according to a heating amount absorbed, the light being converted into heat by the thermal expansion sheet; a relative mover that causes the thermal expansion sheet to move relative to the emitter in a predetermined direction or that causes the emitter to move relative to the thermal expansion sheet in the predetermined direction; and a controller that gradually changes an amount of the light emitted by the emitter according to a rise in temperature in the emitter, the rise in temperature being caused by the emission of light by the emitter, when the relative mover causes the thermal expansion sheet to move relative to the emitter in the predetermined direction or causes the emitter to move relative to the thermal expansion sheet in the predetermined direction while the light is being emitted by the emitter.

Abstract: The present disclosure relates to a method for performing a three dimensional (3D) printing process. A primary light beam having a wavelength sufficient to initiate polymerization of a photoresin is generated and patterned into a patterned primary beam. The patterned primary beam is directed toward an ultraviolet (UV) or visible light sensitive photoresin to initiate polymerization of select areas of the photoresin. The photoresin is also illuminated with a secondary light beam having a wavelength of at least one of about 765 nm, 1064 nm, or 1273 nm. The secondary light beam stimulates triplet oxygen into singlet oxygen, which controls oxygen inhibition in additional areas bordering the select areas, to enable controlled polymerization inhibition in the additional areas bordering the select areas.

Abstract: Provided is a novel transparent adhesive material having low relative permittivity as well as excellent adhesive characteristics, whereby an olefinic polymer resin layer and an acrylic polymer adhesive layer can be suitably integrated. Suggested is a transparent adhesive material provided with an outermost surface layer containing an acrylic polymer (B) and a photocrosslinking initiator, and an intermediate layer containing an olefinic polymer (A), a crosslinking agent, and a photocrosslinking initiator, in which the intermediate layer contains a (meth)acrylate monomer as the crosslinking agent.

Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.

Abstract: A method for producing a rubber member according to the present invention includes the steps of: supplying a rubber composition to a cylinder provided in an extruder; extruding the rubber composition to a downstream side of the cylinder while kneading the rubber composition in an internal space of the cylinder that includes a plurality of protruding members protruding from an inner wall surface of the cylinder; compressing the rubber composition at least once in the step of extruding the rubber composition to the downstream side; discharging a gas generated from the compressed rubber composition to outside of the cylinder; discharging, through a discharge outlet of the cylinder, the rubber composition after the gas has been generated; and molding the rubber composition that has been discharged through the discharge outlet into a predetermined rubber member shape.

Abstract: A method and device for preparing karst caves based on 3D printing technology. The method includes the following steps: determining size of a sample according to test requirements, constructing a 3D karst cave digital model based on three-dimensional karst cave scanning result, and carrying out 3D printing by using alloy to form primary karst cave sample; preparing rock similar material mixture according to proportioning scheme; pouring mixture into sample mold while burying karst cave model into mixture according to position of a karst cave; curing sample together with mold at room temperature until rock similar materials get hardened, removing mold, curing formed karst cave rock sample at constant temperature and constant humidity and then baking or heating same by electrifying heating wire in alloy to form rock sample with hollow karst cave; and filling hollow karst cave with different fillings to form different type of karst cave sample.

Abstract: A method of molding a component includes the steps of providing a plurality of fibers, applying the fibers with a low temperature sizing to form a plurality of sized fibers, forming a preform from the plurality of sized fibers, placing the preform in a mold, and de-sizing the preform by heating the mold to an initial temperature that is sufficient to break down the low temperature sizing to a gaseous phase. A molding apparatus is also disclosed.

Abstract: A method for recycling concrete mass in a slipform casting process, where the concrete mass is first cast and compacted with a slipform casting machine comprising a restricted cross-section to form a concrete product to be cast and at least one concrete mass tank for feeding concrete mass to the restricted cross-section, and the cast concrete mass is removed from areas of the fresh cast portion of the concrete product, wherein the removed fresh concrete mass is conveyed and dosed back to the at least one concrete mass tank of the slipform casting machine. The invention also relates to a system and a casting machine for implementing the method.

Abstract: A laser beam applying unit of a laser processing apparatus includes a laser oscillator, a condenser adapted to focus the laser beam emitted from the laser oscillator and apply the laser beam to a workpiece, and a liquid jetting apparatus disposed at a lower end portion of the condenser and adapted to jet a liquid to an upper surface of the workpiece. The liquid jetting apparatus includes: a transparent plate disposed at the lower end portion of the condenser and permitting transmission therethrough of the laser beam; a casing provided with a space defined by a ceiling wall composed of the transparent plate, side walls, and a bottom wall; an opening formed in the bottom plate, extending in a processing feeding direction, and permitting passage therethrough of the laser beam focused by the condenser; and a liquid supply section adapted to supply the liquid to the casing.

Abstract: A method of making an antimicrobial composite article, including the steps: providing a matrix comprising a polymeric material; providing a plurality of second phase particles comprising an antimicrobial agent; melting the matrix to form a matrix melt; distributing the plurality of second phase particles in the matrix melt at a second phase volume fraction to form a composite melt; forming a composite article from the composite melt; and treating the composite article to form an antimicrobial composite article having an exterior surface comprising an exposed portion of the matrix and the plurality of second phase particles. The distributing step can employ an extrusion process. The forming a composite article step can employ an injection molding process. The treating step can employ abrading and plasma-treating the article to define the exterior surface.

Abstract: Methods and systems are provided for heating a dielectric preform material. An exemplary method includes inserting the preform material into a microwave cavity along a longitudinal axis of the microwave cavity and supplying the microwave cavity with microwave power having a frequency that corresponds to an axial wavelength along the longitudinal axis of the microwave cavity. The axial wavelength is greater than a length of the preform material along the longitudinal axis. The method includes heating the preform material within the microwave cavity by the microwave power and determining temperatures of the preform material at one or more locations on a surface of the preform material. The method further includes adjusting, based on the temperatures of the preform material, the microwave frequency to achieve substantially uniform heating at least on a sidewall of the preform material along the longitudinal axis.

Abstract: A film frame, a system for manufacturing a display substrate, and a method of manufacturing a display substrate, the film frame including a pair of frame edges extending lengthwise in a first direction and arranged opposite to each other; a fixed end clamp connected to the pair of frame edges and extending lengthwise in a second direction perpendicular to the first direction; and a free end clamp between the pair of frame edges, the free end clamp extending lengthwise in the second direction and configured to be detachably coupled with the pair of frame edges, wherein the fixed end clamp includes a first magnetic fixer extending lengthwise in the second direction and a second magnetic fixer on the first magnetic fixer, and the free end clamp includes a third magnetic fixer extending lengthwise in the second direction and a fourth magnetic fixer on the third magnetic fixer.