Abstract:
An apparatus and method for forming a bubble (30) within a microchannel of a microinjector (12) to function as a valve mechanism between the chamber (14) and manifold (16), that provides for a high resistance to liquid exiting the chamber through the manifold during fluid ejection through an orifice (18) and that also provides a low resistance to refilling of liquid into the chamber after ejection of fluid and collapse of the bubble. This effectively minimizes cross talk between adjacent chambers and increases injection frequency of the microinjector. The formation of a second bubble (32) within the chamber (14) coalesces with a first formed bubble (30) between the chamber (14) and manifold (16) to abruptly terminate the ejection of fluid, thereby eliminating satellite droplets.
Abstract:
A paint injector (300) for digital printing in which paint is deposited in metered amounts on a print medium comprising a wheel (304) rotatable by a shaft (303) of a motor (324), an idler (308) disposed in a paint reservoir (306), and a segment of wire (302) disposed around the wheel (304) and the idler (308). The motor (324) is preferably computer controlled (350) such that the rotation of the wheel (304) and thus movement of the wire (302) is selectively controlled. As the wheel (304) is rotated, paint contained within the paint reservoir (306) coats the wire (302) and is thus drawn by the wire (302) in front of an air stream. The air stream pulls the paint from the wire (302) and carries it toward the print medium.
Abstract:
A method for continuously supplying a uniform vapor of a polymerizable and/or cross-linkable material. A continuous liquid flow of said material is supplied at a temperature below both the decomposition temperature and the polymerization temperature of said material and atomized into a continuous flow of liquid droplets having a particle size from about 1 to about 50 microns. The droplets are continuously vaporized upon contact with a heated surface which is maintained at a temperature at or above the boiling point for said material, but below the temperature at which said droplets would undergo pyrolysis before vaporizing. The vapor may be deposited onto a substrate and subsequently polymerized or cross-linked.
Abstract:
A method of preparing a Metal Organic Framework (MOF), the method comprising (i) depositing a liquid comprising MOF precursors on a surface of a piezoelectric substrate, the MOF precursors comprising a metal ion and an organic ligand, and (ii) applying an electrical input to the piezoelectric substrate to induce propagation of acoustic waves across the piezoelectric substrate, which in turn causes the liquid to form an acoustowetting film on the piezoelectric substrate, within which the MOF precipitates.
Abstract:
Sistema de nebulización en línea por ultrasonido, útil en la dispensación de agentes agroquímicos para fruta de postcosecha que comprende: una cámara de nebulización compuesta por un tanque cerrado que contiene el líquido a nebulizar, un agitador; dos transductores de ultrasonido; y un ventilador; una cámara de aplicación de la nube en la fruta, compuesta por una cámara cerrada dispuesta sobre la línea de proceso, la cual posee compuertas con lamas para la entrada y salida de la fruta, un aplicador cilíndrico del agroquímico, el que está conectado a la cámara de nebulización por medio de un ducto; y una cámara de recuperación de la nube compuesta por un tanque cerrado acoplado a la cámara de aplicación, bajo la línea de proceso que está conectado a la cámara de nebulización por un ducto, y donde la nube recuperada es impulsada por el ventilador. Además, del proceso para operar el sistema.
Abstract:
The present application describes apparatus (100) for colouring an additively manufactured polymer part, comprising a chamber (106) for locating at least one additively manufactured polymer part (105) to be coloured, a first reservoir (102) for containing dye pigment particles to be suspended in a gas, and fluidly coupled to the chamber, and a further reservoir (104) for containing a solvent vapour, and fluidly coupled to the chamber. A method of colouring an additively manufactured polymer part is also described.
Abstract:
Изобретение относится к способам получения лекарственного аэрозоля. Задача - разработка более эффективного способа доставки лекарственных средств в виде аэрозоля, решается благодаря генерации лекарственного средства в виде аэрозоля и включает подачу затравочных наночастиц вместе с атмосферным воздухом в нагревательный канал ингаляционного устройства-, подачу нагретого воздуха с затравочными частицами к лекарственному средству, испарение исходной субстанции лекарственного средства с последующей гетерогенной куклеацией полученного пересыщенного пара и конденсационным ростом образованных аэрозольных частиц и подачу в легкие пациенту в виде аэрозоля. Положительный эффект предложенного способа достигается тем, что затравочные частицы NaCl являются ядрами гетерогенной нуклеации, существенно ускоряя образование целевых аэрозольных частиц при пониженных температурах. Преимущества: исключается термическое разложение исходного вещества, что, в свою очередь, позволяет избежать побочных продуктов разложения в- целевом аэрозоле.