Abstract: A microparticle forming device is used to form microparticles with uniform particle size and proper roundness, and includes a collection pipe, a fluid nozzle, a reactor and a filter. The collection pipe includes a fluid passage, an aqueous-phase fluid inlet, an oil-phase fluid inlet and a mixed fluid outlet, all of which communicate with the fluid passage. The oil-phase fluid inlet is located between the aqueous-phase fluid inlet and the mixed fluid outlet. The fluid nozzle has a plurality of oil-phase fluid drop outlets aligned with the oil-phase fluid inlet of the collection pipe. The reactor has a reaction chamber communicating with the mixed fluid outlet of the collection pipe, a mixing member accommodated in the reaction chamber, and a microparticle collection port communicating communicated with the reaction chamber. Two opposite ends of the filter respectively communicate with the reaction chamber of the reactor.

Abstract: A nozzle for producing microparticles includes a nozzle body having an oscillating device and an amplifying portion connected to the oscillating device and located between first and second ends of the nozzle body. A through-hole extends from the first end through the amplifying portion and the second end. A tube assembly is mounted in the through-hole and includes first and second tubes between which a first fluid passageway is defined. A second fluid passageway is defined in the second tube. Two ends of the first tube respectively form a first filling port and a plurality of first outlet ports both of which intercommunicate with the first fluid passageway. Two ends of the second tube respectively form a second filling port and a second outlet port both of which intercommunicate with the second fluid passageway. A formation space is defined between the second outlet port and the first outlet ports.

Abstract: A microparticle forming device is used to form microparticles with uniform particle size and proper roundness, and includes a collection pipe, a fluid nozzle, a reactor and a filter. The collection pipe includes a fluid passage, an aqueous-phase fluid inlet, an oil-phase fluid inlet and a mixed fluid outlet, all of which are communicated with the fluid passage. The oil-phase fluid inlet is located between the aqueous-phase fluid inlet and the mixed fluid outlet. The fluid nozzle has a plurality of oil-phase fluid drop outlets aligned with the oil-phase fluid inlet of the collection pipe. The reactor has a reaction chamber communicated with the mixed fluid outlet of the collection pipe, a mixing member accommodated in the reaction chamber, and a microparticle collection port communicated with the reaction chamber. Two opposite ends of the filter are respectively communicated with the reaction chamber of the reactor.

Abstract: A microcarrier forming apparatus includes a tank having an inner periphery. A plurality of spoilers is disposed on the inner periphery of the tank. A spray generator includes a spraying end facing an interior of the tank. A stirrer includes a shaft and a fluid driving member. The shaft includes a central axis inclined from a horizontal plane. The fluid driving member is coupled to the shaft and is disposed in the interior of the tank.

Abstract: A water-phase composition for producing microparticles includes a water-phase fluid, an amphiphilic polymer stabilizing agent, a water-phase surfactant, and an organic solvent. The amphiphilic polymer stabilizing agent can be polyvinyl alcohol. The water-phase surfactant can be polysorbate 20, polysorbate 80, poloxamer 188, or sodium dodecyl sulfate. The water-phase surfactant can be ethyl acetate, dichloromethane, chloroform, or dimethyl sulfoxide.

Abstract: A nozzle for producing microparticles includes a nozzle body having a first end and a second end opposite to the first end. The nozzle body further includes a through-hole extending from the first end through the second end. A fluid passageway is defined in the through-hole and forms a filling port in the first end of the nozzle body and a plurality of outlet ports in the second end of the nozzle body. The nozzle body further includes an oscillating device and an amplifying portion. The oscillating device is connected to the amplifying portion. The amplifying portion surrounds the fluid passageway and is located adjacent to the second end of the nozzle body.

Abstract: A nozzle, an apparatus, and a method for producing dual-layer microparticles used as microcarriers. The nozzle includes a nozzle body having a first fluid passageway and a cover mounted to the nozzle body and having a second fluid passageway. A plurality of extension tubes is communicated with an end of the first fluid passageway and is spaced from each other. Each extension tube includes an outlet port distant to the first fluid passageway. A plurality of sleeves is communicated with the second fluid passageway. Each sleeve includes an opening distant to the second fluid passageway. Each extension tube extends into one of the sleeves. An outer wall of each extension tube is spaced from an inner wall of one of the sleeves. The outlet port of each extension tube is located between the second fluid passageway and the opening of one of the sleeves.

Abstract: A nozzle includes a nozzle body having a fluid passageway to which extension tubes are communicated. Each extension tube includes an end having an outlet port. The outlet ports are spaced from each other. An apparatus includes the nozzle, a fluid tank into which the extension tubes extends, a fluid shear device mounted in the fluid tank, and a temperature control system in which the fluid tank is mounted. A method includes filling a water phase fluid into the fluid tank. An oil phase fluid flows out of the nozzle body via the outlet ports. The water phase fluid is disturbed and flows out of the outlet ports to form semi-products of microparticles in the fluid tank. Each semi-product has an inner layer formed by the oil phase fluid and an outer layer formed by the water phase fluid. The outer layers of the semi-products are removed to form microparticles.

Abstract: A sieve for microparticles includes a seat having a chamber and a plurality of boards mounted in the chamber. Each of the plurality of boards includes a first face and a second face opposite to the first face. The first face includes at least one notch. The second face includes at least one groove. The first face of each of the plurality of boards abuts the second face of an adjacent board. The at least one notch and the at least one groove respectively of two adjacent boards are partially aligned and intercommunicated with each other.

Abstract: A nozzle, an apparatus, and a method are provided for mass production of dual-layer microparticles used as microcarriers. The nozzle includes a nozzle body having a first fluid passageway and a cover mounted to the nozzle body and having a second fluid passageway. A plurality of extension tubes is communicated with an end of the first fluid passageway and is spaced from each other. Each extension tube includes an outlet port distant to the first fluid passageway. A plurality of sleeves is communicated with the second fluid passageway. Each sleeve includes an opening distant to the second fluid passageway. Each extension tube extends into one of the sleeves. An outer wall of each extension tube is spaced from an inner wall of one of the sleeves. The outlet port of each extension tube is located between the second fluid passageway and the opening of one of the sleeves.

Abstract: A sieve for microparticles includes a seat having a chamber and a plurality of boards mounted in the chamber. Each of the plurality of boards includes a first face and a second face opposite to the first face. The first face includes at least one notch. The second face includes at least one groove. The first face of each of the plurality of boards abuts the second face of an adjacent board. The at least one notch and the at least one groove respectively of two adjacent boards are partially aligned and intercommunicated with each other.

Abstract: A method for producing microparticles includes filling a tank with a first fluid. A nozzle including a plurality of first outlet ports facing the tank is provided. A second fluid forms a plurality of liquid films on the first outlet ports. The liquid films on the first outlet ports absorb a vibrational energy to form a plurality of microdroplets that falls into the first fluid. The first fluid envelops outer layers of the microdroplets to form a plurality of semi-products of microparticles. Each semi-product includes an outer layer formed by the first fluid and an inner layer formed by the second fluid. The semi-products in the tank are collected. The outer layers of the semi-products are removed to form a plurality of microparticle products.

Abstract: A nozzle includes a nozzle body having a fluid passageway to which extension tubes are communicated. Each extension tube includes an end having an outlet port. The outlet ports are spaced from each other. An apparatus includes the nozzle, a fluid tank into which the extension tubes extends, a fluid shear device mounted in the fluid tank, and a temperature control system in which the fluid tank is mounted. A method includes filling a water phase fluid into the fluid tank. An oil phase fluid flows out of the nozzle body via the outlet ports. The water phase fluid is disturbed and flows out of the outlet ports to form semi-products of microparticles in the fluid tank. Each semi-product has an inner layer formed by the oil phase fluid and an outer layer formed by the water phase fluid. The outer layers of the semi-products are removed to form microparticles.

Abstract: A nozzle for producing microparticles includes a nozzle body having an oscillating device and an amplifying portion connected to the oscillating device and located between first and second ends of the nozzle body. A through-hole extends from the first end through the amplifying portion and the second end. A tube assembly is mounted in the through-hole and includes first and second tubes between which a first fluid passageway is defined. A second fluid passageway is defined in the second tube. Two ends of the first tube respectively form a first filling port and a plurality of first outlet ports both of which intercommunicate with the first fluid passageway. Two ends of the second tube respectively form a second filling port and a second outlet port both of which intercommunicate with the second fluid passageway. A formation space is defined between the second outlet port and the first outlet ports.

Abstract: A nozzle for producing microparticles includes a nozzle body having a first end and a second end opposite to the first end. The nozzle body further includes a through-hole extending from the first end through the second end. A fluid passageway is defined in the through-hole and forms a filling port in the first end of the nozzle body and a plurality of outlet ports in the second end of the nozzle body. The nozzle body further includes an oscillating device and an amplifying portion. The oscillating device is connected to the amplifying portion. The amplifying portion surrounds the fluid passageway and is located adjacent to the second end of the nozzle body.

Abstract: A flicker-free dimming circuit for non-point light source has a TRIAC module, an input module, a conversion module and an output module. The TRIAC module adjusts the voltage phase of an external power supply for the input module to export an input voltage, and the conversion module in a boost circuit structure is provided with a conversion coil and a converter to receive and raise the voltage value of the input voltage to a voltage value of an operating voltage and then supplies the operating voltage to the output module. The output module adopts a fly-back circuit structure and induces the operating voltage to form a driving voltage in a constant value and then outputs the driving voltage to a lamp with a relatively wide light source area. In this way, the panel lamp can meet high safety standards and enhance its product adaptability and competiveness.

Abstract: A microstructure forming apparatus is adapted for processing a workpiece and includes: a light source for emitting light toward the workpiece; a first axicon disposed between the light source and the workpiece; and a second axicon disposed between the first axicon and the workpiece. Light emitted from the light source forms a high-order Bessel beam after passing through the first axicon and the second axicon in sequence for processing and forming a microstructure in the workpiece.

Abstract: A self-excited TRIAC dimming circuit applied in a panel light includes a dimming module and at least one conversion module, and a power factor controller (PFC) is installed in the dimming module, and the conversion module is a self-excited electronic isolation transformer, and the TRIAC PFC is integrated with the circuit structure of a self-excited electronic transformer to improve the overall circuit stability, so that the panel light complies with a high safety standard to enhance product applicability and competitiveness.

Abstract: A main micro channel layer with a liquid leading-in plate assembled above and a microsphere leading-out plate assembled below. The liquid leading-in plate has a first and two second fluid outlets, and the microsphere leading-out plate has a microsphere outlet. The main micro channel layer has a main, two secondary, and a hybrid micro channels, the main micro channel being communicated with the first fluid outlet, the two secondary micro channels being located at two sides of the main micro channel and intersecting with the main micro channel at an intersection in a cross or a Y junction, the two secondary micro channels communicated with the two second fluid outlets, and the hybrid micro channel connected to the intersection and having an output end. A channel bottom surface of the main micro channel or the two secondary micro channels has an ascending slope to form an inclined inlet.

Abstract: A self-excited TRIAC dimming circuit applied in a panel light includes a dimming module and at least one conversion module, and a power factor controller (PFC) is installed in the dimming module, and the conversion module is a self-excited electronic isolation transformer, and the TRIAC PFC is integrated with the circuit structure of a self-excited electronic transformer to improve the overall circuit stability, so that the panel light complies with a high safety standard to enhance product applicability and competitiveness.