Abstract: An electrospinning apparatus for producing ultrafine fibers according to the present invention comprises: a cylindrical metal guide disposed to surround a hollow tube needle, which receives a charged solution and discharges the charged solution in the form of a filament, wherein a high voltage is applied to the cylindrical metal guide to control droplet stability of the charged solution; and a strip-shaped metal guide including a plurality of strip-shaped metal plates, which extend outward from the cylindrical metal guide and are radially arranged to control the direction of a charged filament, whereby discharge droplets of the charged solution are stably maintained, and the charged filament formed therefrom maintains a constant directionality with respect to a substrate, so that a uniform pattern having ultrafine fibers can be manufactured on a collection part.

Abstract: In one embodiment, an electrospinning head has a nozzle unit and a control body. The nozzle unit is arranged opposite to a base material, is applied with a voltage, and thereby is capable of discharging a raw material liquid of fiber. The control body is arranged in the vicinity of the nozzle unit so as to extend to an outside of a spinning space between the base material and the nozzle unit. Further, the control body is applied with a voltage of the same polarity as the voltage to be applied to the nozzle unit, and thereby is capable of making an electric field to be generated at the periphery of the nozzle unit.

Abstract: The present invention relates to an apparatus for the mass production of polymeric nanofibres and their uniform deposition over any substrate. The present invention also provides a method for the manufacture of droplet free polymeric nanofibres by electrospinning process using multi-hole spinnerets. The droplet free polymeric nanofibres of the present invention are preferably of a diameter in the range of 50 nm to 850 nm.

Abstract: A method for manufacturing a structure material is a method for manufacturing a structure material that includes a thermoplastic resin, reinforced fibers, and voids. The method includes: a first process for arranging a structure precursor comprising the thermoplastic resin and the reinforced fibers in a mold with a surface temperature of 80° C. or less; a second process for raising the surface temperature of the mold up to a temperature at which a storage elastic modulus (G?) of the structure precursor is less than 1.2×108 Pa; a third process for lowering the surface temperature of the mold down to a temperature at which the storage elastic modulus (G?) of the structure precursor is 1.2×108 Pa or more; and a fourth process for removing a structure material obtained after end of the third process from the mold.

Abstract: The present invention discloses a concrete construction method for controlling setting time and special equipment thereof. The technical solution comprises processes of mixing, pumping, extruding, forming, setting and hardening. An electric treatment of applying an external electric field to a concrete mixture is provided between the pumping and the extruding process. The mixture treated by the external electric field is immediately extruded through an extrusion outlet. The special equipment comprises a transporting pump, a transporting pipeline and an extrusion device. The extrusion device comprises an equipment for electrical process and the extrusion outlet. By adopting the construction solution and equipment in the present technical solution, an effect on rapid controlling or adjusting the concrete setting time is achieved and an early strength of concrete is rapidly and rationally enhanced. A requirement of adjusting concrete setting time at will before the forming process is met.

Abstract: The invention discloses a multifunctional spinning device, comprising a solution storage apparatus, a solution spraying apparatus, a solution delivery apparatus, a drive apparatus, a high-voltage power supply apparatus, and a fiber collecting apparatus. The device not only realizes production of micron and nano fibers with multiple structures or a mixture thereof on one device, but also greatly improves the production yield thereof, tremendously reduces a voltage value of the required high-voltage electrostatic field, even does not require involvement of the high-voltage electrostatic field, reduces costs, and improves production safety.

Abstract: The present disclosure is directed to a method of forming a composite component. The method includes laying one or more layers of uncured composite material onto a mandrel. The mandrel which includes a plurality of conductive media dispersed in a thermoplastic material. An electric current is supplied to the mandrel to resistively heat the one or more layers of uncured composite material to a temperature sufficient to cure the one or more layers of uncured composite material to form a cured composite component. The mandrel is removed from the cured composite component.

Abstract: The invention relates to a press furnace for a denture or partial denture, having a combustion chamber in which a press mold, in particular a muffle, having a press channel for the introduction of a ram can be positioned, and a drive for driving the ram, wherein, in order to improve the drive of the press furnace, the drive provided is an electromagnet, the magnetic armature or magnetic coil of which drives the ram.

Abstract: A method and apparatus for manufacturing a connector for a container for medical use intended to administer fluid, the connector including a main body defining an inner channel for fluid to pass through and at least one continuous or discontinuous bead, projecting inside the channel. The method includes: a) producing a tubular conduit with no bead projecting inside the channel, b) inserting at least partially into the tubular conduit a mandrel having, on its outer surface, at least one continuous or discontinuous annular recess, whose dimensions and shape correspond to those of a continuous or discontinuous bead to be formed in the inner channel, c) partially heating the tubular conduit, the part including at least the conduit portion placed at the at least one recess when the mandrel has been positioned in the tubular conduit, such that the material of the tubular conduit fills the at least one recess.

Abstract: Methods and apparatus for forming non-woven fiber mats from polymers and monomers that are traditionally difficult to use for fiber formation are shown and described. Applicable techniques include electrospinning and other traditional fiber formation methods. Suitable polymers and monomers include those having low molecular weight, a low melting point, and/or a low glass transition temperature.

Abstract: The present invention features the present invention features a tablet including at least one pharmaceutically active ingredient, wherein the shape of said tablet includes at least one major face wherein: (i) the peak penetration resistance at the perimeter of said major face of the tablet is at least about 10% greater than the peak penetration resistance at the center of said major face; and (ii) the tablet disintegrates in the mouth when placed on the tongue in less than about 30 seconds, and a machine and method for manufacture of such tablet.

Abstract: The present invention features the present invention features a machine for the production of a solid dosage form including: (a) a die platen having one or more forming cavities each having an inner wall, a first opening at the surface of one side of the die platen, and a second opening at the surface on the opposite side of the die platen; (b) one or more first forming tools each adapted to move into one of the forming cavities through the first opening of the forming cavity; (c) one or more second forming tools each adapted to move adjacent to one of the second openings or into one of the forming cavities through the second opening of the forming cavity; (d) at least one first RF electrode operably associated with the one or more first forming tools, the one or more second forming tools, or the inner wall of the one or more forming cavities; and (e) at least one second RF electrode operably associated with the one or more first forming tools.

Abstract: Provided is an electret having high piezoelectric properties. An electret sheet of the invention is characterized in that it comprises a synthetic resin sheet is electrified by injecting electric charges thereinto, that the synthetic resin sheet comprises two types of synthetic resins incompatible with each other, and that these synthetic resins form a phase separated structure and are cross-linked through a polyfunctional monomer. Therefore, positive and negative charges in an apparently polarized state are present in the interfacial portions between the two types of synthetic resins incompatible with each other. By applying an external force to the electret sheet to deform it, the relative positions of these positive and negative charges are changed, and these changes cause a favorable electrical response. Therefore, the electret sheet has high piezoelectric properties.

Abstract: An apparatus for extruding a block product from a feed material. A barrel includes an output end. A screw is at least partially disposed within the barrel. The screw flows the feed material in the barrel towards the output end. A die is in fluid communication with the output end of the barrel. The die receives the feed material and heats the feed material to produce the block product. At least one electrically conductive element passes electric current through the feed material to heat the feed material by resistive heating. The feed material may include activated carbon and at least one binder, to produce a carbon block product.

Abstract: Disclosed is a device for preparing preforms of carbon fiber-reinforced components including a preforming mold that can be immobilized on a work bench in an electrically insulated manner, and provided with at least two electrodes in positions in which they contact opposite end areas of the preform to generate a resistive electrical circuit through the carbon fibers to activate a binder present in the preform by heating, a leak-tight elastically deformable compacting membrane capable of adapting to the outer geometry of a preform arranged on the mold, and a pneumatic connection means connected to the compacting device to force the membrane to exert a compacting force on the preform.

Abstract: A spinneret for producing nanofibers from a viscous liquid using electrostatic spinning in an electric field is described. The spinneret includes one or more narrow annular bodies radially centered about and axially spaced along a central axis. The annular bodies may be discs, rings, or coils.

Abstract: According to one embodiment, a fine processing method includes determining a resist amount required for each first region of a pattern formation surface and a total amount of resist. The method include dividing the total amount of resist by a volume of one resist drop to determine the resist drops total number. The method include determining a provisional position for the resist drop of the total number. The method include assigning the each first region to nearest one resist drop, and partitioning again the pattern formation surface into second regions assigned to the each resist drop. The method include determining a divided value by dividing the volume of the one resist drop by the required total amount of resist determined. The method include finalizing a final position of the each resist drop, if a distribution of the divided value in the pattern formation surface falls within a target range.

Abstract: There is disclosed herein a method of designing a mold, the mold being at least part of a unitary body to be formed from a plurality of layers by 3D printing, the method comprising: defining an inner surface of the mold corresponding to at least part of an outer surface of an object to be molded in the mold; selecting a first material from which at least part of the mold is to be printed; and selecting a second material from which at least another part of the mold is to be printed, the second material having a higher thermal and/or electrical conductivity than the first material, wherein at least one of the layers from which the mold is to be formed by 3D printing includes areas to be printed from each of the first and second materials.

Abstract: Embodiments of the present disclosure provide electrospinning devices, methods of use, uncompressed fibrous mesh, and the like, are disclosed.

Abstract: A roller type electrostatic spinning apparatus is disclosed, which includes an electrostatic spinning solution impregnation mechanism having a tank for containing an electrostatic spinning solution and a sizing roller rolled in the tank, a chain emitting electrode touching the sizing roller to coat the electrostatic spinning solution onto the chain emitting electrode, a collecting electrode, and a high-voltage power supply connected to the chain emitting electrode and the collecting electrodes respectively.

Abstract: Processing a composite material includes combining a nanomaterial with a matrix to yield a composite material. The nanomaterial comprises nanotubes. An electric current is applied to the composite material to align and disperse the nanotubes in the matrix.

Abstract: Apparatus and method are provided for heat treatment of a tubular preform material that is loaded onto the outer surface of an electrically conductive mandrel forming a rotatable tubular shaped resistance heater.

Abstract: An endoluminal prosthesis and systems and methods for making the prosthesis are provided. In one example, a patterned graft material for a prosthesis includes a network of electrospun fibers. The network of electrospun fibers may include a plurality of continuous electrospun fibers. The fibers may be collected on a collector plate using an electrospinning process to form the network of fibers. The patterned graft material also may include a plurality of openings in the network of electrospun fibers. The plurality of openings may be arranged in a pattern. The network of electrospun fibers may include a plurality of edges, each surrounding a corresponding one of the plurality of openings. Each of the plurality of edges may include at least one electrospun fiber of the network of electrospun fibers. A majority of the electrospun fibers of the plurality of edges may be continuous at the edges.

Abstract: The present invention provides a method for producing a non-woven fiber fabric by spinning a molten polymer. Thus, a non-woven fiber fabric which is substantially free from a solvent, different from the case of spinning a polymer solution, but yet has an extremely small fiber size (diameter of 0.5 ?m or less) is provided. The non-woven fiber fabric comprises an olefin-based thermoplastic resin fiber, said fiber having an average fiber size of 0.01-0.5 ?m, and said non-woven fiber fabric having an average pore size of 0.01-10.0 ?m and being free from a solvent component.

Abstract: Methods of forming polycrystalline diamond compacts include employing field assisted sintering techniques with high temperature and high pressure sintering techniques. For example, a particle mixture that includes diamond particles may be sintered by subjecting the particle mixture to a high temperature and high pressure sintering cycle, and pulsing direct electrical current through the particle mixture during at least a portion of the high temperature and high pressure sintering cycle. The polycrystalline diamond compacts may be used to form cutting elements for earth-boring tools. Sintering systems are configured to perform such sintering processes.

Abstract: A process for electroblowing a multiple layered sheet using multiple spinning beams to produce different component webs wherein the sheet doesn't stick to the forming screen and has improved web stability.

Abstract: System for practicing a method of making a low cost, light weight impact deflecting material, comprising directionally aligned single walled carbon nanotubes in an epoxy resin composition, that is near impervious to bullets fired at close range at all angles of incidence, that does not deteriorate upon abrasion or when exposed to wide ranges of temperature and humidity, and that when used to construct a protective shield for a body armor vest protects the wearer from blunt trauma effects.

Abstract: An electrospinning apparatus for spinning polymer fibers from a fluid delivered by a jet supply device, which apparatus comprises at least one collector of a plurality of collectors in electrical communication with an electrode of the jet supply device. Collectors are insulated from each other. At least one collector comprises a stretcher adapted to stretch polymer fibers. The stretcher is an integral part of at least one collector. A controller controls sequence and time duration at which collectors are in electrical communication with the electrode of the jet supply device creating a non-woven polymer fabric or weaving polymer fibers into a fabric. The electrospinning apparatus comprises a rotator adapted to rotate the stretcher.

Abstract: A system and method for forming biodegradable ultra-porous hollow fibers are disclosed. The fibers are formed by electrospinning a liquid polymer composition (e.g., solution) of a high molecular weight aliphatic polyester in a controlled environment.

Abstract: An injection molding machine includes a hydraulic driving system providing hydraulic power; a molding system configured for molding a workpiece; and an injection system configured for injecting a molten material to the molding system with the hydraulic power. The injection system includes a cylinder and a piston movably received in the cylinder. The cylinder is surrounded by one of an alternating current-charged coil of wire and a closed-loop coil of wire, and the piston is surrounded by the other, whereby the piston receives acceleration for movement in the cylinder.

Abstract: An electrospinning process and apparatus for forming aligned electrospun fibers. A time-dependent (AC) voltage is applied to a multi-electrode collector in order to temporally control the location and orientation of fiber deposition.

Abstract: Provided is an apparatus for manufacturing a vitreous silica crucible which has a structure which can reduce gaps between a partition wall and electrodes inserted into through-holes formed in the partition wall while enabling electrodes to move to adjust a heating temperature of arc discharge. A plate-shaped partition wall 15 is placed above the rotating mold 10. Electrodes 13 for heating and fusing are inserted into through-holes 16 penetrating in a thickness direction, and are directed toward the rotating mold 10. A rocking unit 40 is provided on an upper side of the partition wall 15 and rocks the electrodes 13 around virtual rocking axes P, and the virtual rocking axes P pass through the through-holes 16.

Abstract: A mold heating/cooling structure for a mold configured with a die base and an insert, comprising: a heat insulating layer, disposed surrounding a die impression of the die base for insulating the heat conduction between the die base and the insert; a magnetic powder layer, disposed against the heat insulating layer; a coil, being disposed on the magnetic powder layer in a manner that it is circling from the outside in toward the center of the magnetic powder layer; and a cooling plate, configured with a plurality of second fluid channels provided fro a fluid to flow therein. With the aforesaid structure, the insert can be heated directly by the coil the it is subject to a high-frequency current, and the heated coil as well as the insert can be cool down with high efficiency as soon as the fluid is fed into the second fluid channels.

Abstract: The present invention features the present invention features a tablet including at least one pharmaceutically active ingredient, wherein the shape of said tablet includes at least one major face wherein: (i) the peak penetration resistance at the perimeter of said major face of the tablet is at least about 10% greater than the peak penetration resistance at the center of said major face; and (ii) the tablet disintegrates in the mouth when placed on the tongue in less than about 30 seconds, and a machine and method for manufacture of such tablet.

Abstract: The present invention relates to a method of generating a hole or recess or well in an electrically insulating or semiconducting substrate, and to a hole or recess or well in a substrate generated by this method. The invention also relates to an array of holes or recesses or wells in a substrate generated by the method. The invention also relates to a device for performing the method according to the present invention.

Abstract: A method of producing carbon nanotubes includes directing a flow of a gas over a substrate to provide growth of at least one carbon nanotube in a carbon-nanotube-growth region of the substrate; applying an electric field to the carbon-nanotube-growth region of the substrate after the at least one carbon nanotube has begun to grow in the carbon-nanotube-growth region, the electric field being substantially in a first direction in the carbon-nanotube-growth region; and changing the electric field at a preselected time to be substantially in a second direction in the carbon-nanotube-growth region during growth of the at least one carbon nanotube. The second direction is different from the first direction resulting in a bend substantially at a selected position of the at least one carbon nanotube, the method of producing carbon nanotubes providing the production of the at least one carbon nanotube having at least one bend substantially at a selected position along the at least one carbon nanotube.

Abstract: In order to realize a device and a method each capable of forming a lens with high accuracy and low costs, a lens forming device of the present invention includes a metal mold, an insulating substrate, a stage, a power source, a switch, and a UV radiating device. Dielectric resin is supplied onto the insulating substrate and a transfer surface of the metal mold is pressed to the dielectric resin so as to transfer a lens shape to the dielectric resin. At that time, the power source applies a voltage on the metal mold to generate an electric field between the metal mold and the insulating substrate so that an electrostatic attraction causes the dielectric resin to be attracted toward the transfer surface of the metal mold while the top of the dielectric resin has a sharp cuspate shape. Consequently, bubbles are less likely to be invade between the transfer surface and the dielectric resin, allowing transferring a highly accurate lens shape to the dielectric resin.

Abstract: The present invention features the present invention features a machine for the production of a solid dosage form including: (a) a die platen having one or more forming cavities each having an inner wall, a first opening at the surface of one side of the die platen, and a second opening at the surface on the opposite side of the die platen; (b) one or more first forming tools each adapted to move into one of the forming cavities through the first opening of the forming cavity; (c) one or more second forming tools each adapted to move adjacent to one of the second openings or into one of the forming cavities through the second opening of the forming cavity; (d) at least one first RF electrode operably associated with the one or more first forming tools, the one or more second forming tools, or the inner wall of the one or more forming cavities; and (e) at least one second RF electrode operably associated with the one or more first forming tools.

Abstract: A mold protecting system for an injection molding machine includes a voltage source, a controller, a first mold, a second mold, a fixed platen, and a movable platen. The first mold is fixed to the movable platen. The second mold is fixed to the fixed platen. The controller from the voltage source to charge the first and second molds, and detects the capacitance between the first and second molds when the distance between the first and second molds equals a pre-set value. If the capacitance between the first and second molds is greater than a reference value, the controller controls the movable platen to stop moving.

Abstract: A method for manufacturing a fine polymer including: generating superheated steam by a superheated steam generating unit (101); adjusting the pressure of the generated superheated steam by a pressure adjusting unit (102); receiving a polymer by a reception unit (103); heating the received polymer to a predetermined temperature by a heating unit (104); discharging the heated polymer through a first discharge port (111); and discharging the superheated steam through a second discharge port (121) at the same time as the time when the heated polymer is discharged. Here, the second discharge port (121) surrounds the first discharge port (111), and the first discharge port (111) and the second discharge port (121) face the same direction.

Abstract: The present invention pertains to plants for producing inorganic fibers from melted rocks, advantageously, with narrow working interval and low diathermy, for example, basalts, diabases, amphibolites, andesites, dacites, rhyolites and other rocks. The plant comprises the furnace for obtaining the melt connected to the feeder, working aperture and a warmed feeder with draw dies located below working aperture where, according to the invention, transition chamber is installed on the feeder exit, such transition chamber is intended for creation of thin layer melt flow, its enclosure contains working aperture, the transition chamber has the heater, the threshold installed at its entrance and adjustable damper located over the threshold, and these components are intended for obtaining the melt flow of needed thickness and quality. The feature of the proposed invention is also the bottom of the transition chamber which has an inclination directed towards the working aperture.

Abstract: An object of the present invention is to stabilize the properties of nanofibers produced. Solution prepared by dissolving a polymeric substance in a solvent is supplied into a conductive ejection container having a plurality of ejection holes. The ejection container is rotated and electrostatic explosions of the solution discharged through the ejection holes are caused so that nanofibers are produced. In the above method for producing nanofibers, in the case where the amount of the solution contained in the ejection container exceeds a predetermined amount, the amount of the solution exceeding the predetermined amount overflow the ejection container. The overflowed solution is collected and resupplied to the ejection container.

Abstract: Method and device for inactivating a microbiologically contaminated mass containing solid particles. The method includes mixing the mass containing solid particles with a gelatinizing agent, transporting the mixed mass of solid particles and gelatinizing agent through a shaping device structured so that the mixed mass, at least in one area, is shaped to form a lamellar volume with a layer thickness of between 1 mm and 3 mm, and impinging the formed lamellar volume of the mixed mass with accelerated electrons.

Abstract: This invention discloses methods and apparatus for providing an ophthalmic lens with an energy source incorporated therein.

Abstract: The present invention relates to a capacitive measurement method and system for a nanoimprint process, which arranges a plurality of electrode plates on both the backside of the master mold and the surface of the supporting base carrying the wafer substrate to form a plurality of capacitive structures. By monitoring the capacitance variation signal caused by the continuous variations in the thickness and the material properties of the resist during the imprint process, the status of the resist can be monitored and recorded, which is used as the references for determining the timing to demold in the nanoimprint process and for maintaining the flatness of the resist. Accordingly, the nanoimprint process can be automated easier and the quality and the throughput of of the nanometer scaled imprint product can be improved.

Abstract: A fine structure imprinting machine is provided which can surely and easily eliminate static electricity in removing a stamper from an imprinting object. The fine structure imprinting machine is adapted to bring the stamper with a fine concavo-convex pattern formed thereon into contact with the imprinting object, thereby to imprint the fine concavo-convex pattern of the stamper onto a surface of the imprinting object. The stamper has a conductive film on at least a pattern formation surface thereof. The stamper is fixed by a conductive holding member, the conductive film is connected to the holding member via the conductor, and the holding member is connected to a ground within the machine.

Abstract: An aspect of the present invention provides a method for producing a saturated norbornene resin film by melt film-forming method comprising discharging a molten resin molten in an extruder in a form of a sheet onto a traveling or rotating cooling support from a die so as to be solidified by cooling, wherein the molten resin discharged from the die is subjected to a close contact treatment which allows only the both end parts of the full width of the molten resin to closely contact to the cooling support. According to the aspect, a close contact treatment which allows only the both end parts of the full width of the molten resin discharged from the die to closely contact to the cooling support is conducted in the melt film-forming of a saturated norbornene resin film, a saturated norbornene resin film having an excellent surface quality without the surface quality defects such as step irregularities can be produced.

Abstract: The present invention provides a nano-precision sintering system 1 for sintering a nano-sized powder of a material in the pulse energization and pressure sintering process to obtain a highly purified sintered compact having a nano-sized grain structure, said nano-precision sintering system 1 comprising: at least one pre-process chamber 20 defined by at least one sealed housing 21 having at least one glove and designed to be controlled into a predetermined atmosphere; a sintering process chamber 30 defined by a sealed housing 31 having at least one glove and designed to be controlled into a predetermined atmosphere; a shut-off system 26 disposed in a passage providing communication between the pre-process chamber and the sintering process chamber so as to block the communication between the two chambers selectively while keeping it in an air tight condition; and a pulse energization and pressure sintering machine 50 having a vacuum chamber “C” allowing for the sintering process to be carried out under a vacuum

Abstract: A directional neutron detector consisting of very thin plastic scintillation fibers and optically coupled to a photo-sensor array, where the directionality of Neutrons is estimated from the sequence of fibers traversed by the scattered protons and energy deposited in each one of them . Several fabrication methods of the large thin fiber arrays are described.

Abstract: A mold for the interior surfaces of one or more spirals is rotated and heated to a temperature sufficient to melt a weldable plastic such as LLDP or HDP plastic in a predetermined amount deposited thereon. Plastic powder not melted is recovered and redeposited until all the plastic powder is melted. The mold or molds are then actively cooled and the formed spiral is removed. An insulation layer is used to improve heating and cooling efficiency, and to control the areas where plastic is deposited. A cover closes the back of the mold.