A method of dispensing a graded material includes generating droplets of a first working material, the droplets having a size in the range of 10 nanometers to 10 micrometers, adding the droplets of the first working material into a carrier fluid to create a first emulsion, wherein addition of the droplets of the first working material is controlled to create gradient in the emulsion, mixing the first emulsion to create a homogenous, graded mixture, and dispensing the homogenous, graded mixture onto a surface.

A modular flow monitoring package (MFMP) is provided for use in an additive delivery system. The MFMP may be manufactured as an add-on to be added to an existing additive delivery system, or may be incorporated into a cartridge or container structure. The MFMP includes a flow sensor for sensing flow of a base fluid and user actuator position sensors for sensing the position of one or more user actuated additive flow adjustment levers. A visual display, which may comprise an array of multi-color LED's may convey information to a user that is relevant to a user's use of the additive delivery system or the user's nutritional needs. Such information may include a current dosage of additive, being delivered, whether a recommended dosage of additive has been consumed, remaining life of a cartridge or supply of additive, and other data relative to health or performance monitoring.

A dispensing machine for dispensing fluid products comprising a dispensing zone (15) in which elongated support means (12) are disposed, configured to support a plurality of removable containing units (11) of the fluid products in a stationary manner along a longitudinal axis (X) is disclosed. The dispensing zone (15) further includes translation means (20) configured to allow moving a receptacle (18) positioned on a metering unit and disposed on the translation means (20) substantially parallel to the longitudinal direction (X) to delivery positions substantially vertically below said containing units (11) and measurement means (16) configured to meter a quantity of fluid product that is delivered from a containing unit (11) to the receptacle (18) in a delivery position corresponding to the respective containing unit. Also disclosed is the use of such dispensing machine for preparing customized formulations of fluid products as well as a method for preparing user-defined target formulation from a plurality of dispensable fluid products.

A multi-reservoir feeding/dosing apparatus for the delivery of at least two substances in discrete form includes first and second conveying elements in which the discharge end thereof are a close fit in a discharge bushing thereby to ensure that the correct dosage of each substance is discharged on a consistent basis. Each conveying element is in its respective reservoir. At least one motor drives both conveying elements, with each rotational direction of the motor actuating a corresponding one of the conveying elements.

A portable foam brush includes a soap reservoir, such as optionally in a base or in a wand, a foaming chamber, and an air compressor, such as optionally battery-operated air compressor. The compressor is configured for supplying air to act upon the soap from the reservoir to cause dispensing of soap to the foaming chamber. In some embodiments, the compressor may also supply air to the foaming chamber. In use, the soap and the air in the foaming chamber combine to form an air and soap foam. The brush includes a brush end configured for receiving foam from the foaming chamber and dispensing the foam.

Disclosed herein is a cell culture device and its applications of creating gradient of chemicals or gradient of cells to mimic the in vivo physiological conditions of homeostasis.

A bio emulsion fuel manufacturing apparatus and method using vegetable oil is provided, including an oil tank unit configured to refine a vegetable oil introduced from an oil inlet by using a coagulant agent and a centrifugal decanter; a water tank unit configured to pretreat a water introduced from a water inlet by using a water tank catalyst; a mixed oil unit connected to the oil tank unit and the water tank unit, and configured to produce a mixed oil by using an inline mixer; and an ionization catalyst unit connected to the mixed oil unit and configured to convert the mixed oil to a bio emulsion fuel by using an ionization catalyst group.

A material dispensing system can comprise a first and second supply container housing a first and second material, respectively, comprising a first and second fluid, respectively; a first and second metering cylinder fluidly connected to the first and second supply container, respectively, the second metering cylinder configured to move from a first to a second stroke position in unison with the first metering cylinder; a dispensing head configured to receive a first and second liquid of the first and second fluids, respectively; a first recycling valve positioned between the first metering cylinder and the dispensing head; and a second recycling valve positioned between the second metering cylinder and the dispensing head, the first and second recirculating valves configured to draw a portion of the first and second fluids back into the first and second supply containers, respectively, in an open position.

A system for producing a high precision blended gas product (BGP), the system comprising: a supply of a volatile analyte in liquid form; a supply of an inert carrier gas; a supply of at least one diluent gas; an analyte gasifier (AG) subsystem for receiving the volatile analyte in liquid form, nebulizing the volatile analyte and mixing the nebulized volatile analyte with the inert carrier gas so as to form an analyte gas stream (AGS); and a gas mixer (GM) subsystem for receiving the AGS from the AG subsystem and mixing the AGS with the supply of at least one diluent gas so as to produce the BGP, wherein the GM subsystem comprises: a gas analyzer (GA) for receiving the AGS and analyzing the same; a gas proportioner for receiving the AGS from the GA, receiving the at least one diluent gas, and proportioning the AGS and the at least one diluent gas based on the results of the GA so as to provide a proportioned AGS and a proportioned at least one diluent gas; and a gas mixing chamber for receiving the proportioned AGS and the proportioned at least one diluent from the gas proportioner so as to produce the BGP.

Embodiments of the present invention include a blending system that delivers granular material directly from designated storage containers into a blender based on the liquid flow rate into the blender and the blender slurry flow rate exiting the blender. The blending system utilizes a blender controller system in communication with a blender slurry flow meter, a blender liquid flow meter, a conveyor load cell, a conveyor motor, and a conveyor speed sensor, wherein the blender control system is configured to regulate the amount of granular material entering the hopper based on the entrance rate of liquid into the blender and the exit rate of the fracturing fluid slurry from the blender.