A process dilutes an aerosol by feeding an input aerosol through an inlet pipe surrounded by an annular space to a first mixing stage. An output aerosol leaves purified via an outlet as a particle-free clean gas. The particle-free clean gas is fed to the annular space upstream of the outlet and is mixed with the aerosol. A mixing stage includes an inlet pipe feeding aerosol as inlet aerosol. A downstream purification device purifies outlet aerosol leaving the mixing stage via an outlet pipe to form the particle-free clean gas. A mass flow controller and a pump suction off the outlet aerosol from the outlet pipe. A return line, for the clean gas, leads upstream into the annular space.

Mixing systems and methods include a mixing device comprising a primary tube having a proximal end, a distal end, an outer surface and an inner lumen and at least one secondary tube having a proximal end, a distal end, an outer surface and an inner lumen. The at least one secondary tube is substantially parallel to the primary tube. The distal end of the at least one secondary tube is fluidly connected to the primary tube at a junction located on the primary tube close to the distal end of the primary tube.

A process for separation of a slurry by radially injecting a stream of a nanogas solution at a shear-focus volume within a pipe; passing an aqueous slurry through the pipe along a direction of flow and through the shear-focus volume; and shearing and/or admixing the slurry with the nanogas solution within the shear-focus volume.

The invention provides kits, devices, methods, and systems for forming droplets or particles and methods of their use. The devices may be used to form droplets of a size suitable for utilization as microscale chemical reactors, e.g., for genetic sequencing. In general, droplets are formed in a device by flowing a first liquid through a channel and into a droplet formation region including a second liquid, i.e., the continuous phase. The invention allows for more efficient recovery of droplets or processed droplets.

The present disclosure generally provides methods of providing at least metastable radical molecular species and/or radical atomic species to a processing volume of a process chamber during an electronic device fabrication process, and apparatus related thereto. In one embodiment, the apparatus is a gas injection assembly disposed between a remote plasma source and a process chamber. The gas injection assembly includes a body, a dielectric liner disposed in the body that defines a gas mixing volume, a first flange to couple the gas injection assembly to a process chamber, and a second flange to couple the gas injection assembly to the remote plasma source. The gas injection assembly further includes one or more gas injection ports formed through the body and the liner.

The present device is a gas-liquid mixing device having a venturi structure A in which a throttle portion and a conical portion are provided in a main passage through which a liquid passes, including: a gas mixing passage for taking in gas from a tangential direction with respect to the main passage having a circular cross section; and a protruding portion provided on a downstream side of the gas mixing passage of an inner wall forming the main passage and extending in a central axis direction of the main passage. It is preferable that the protruding portion is provided on an inner wall forming the conical portion, and is formed such that a protruding height from the inner wall increases toward the downstream side.

A gas/liquid dissolution device includes: a dissolution case of a cylindrical shape; an introduction port outside a side surface of the dissolution case, where a dissolution water is introduced into the dissolution case and a different kind of gas is mixed through the introducing port; a gas/liquid separation inducer in the dissolution case, the gas/liquid separation inducer inducing the dissolution water and an insoluble gas introduced into the dissolution case to be separated to a gas and a liquid by a centrifugal force; and a discharge port outside an end portion of the dissolution case. The dissolution water and the insoluble gas are discharged from the dissolution case through the discharge port.

A bubble generating device is disclosed which includes: a bubble generator including a tubular body, a liquid introduction port, a gas introduction port, and a discharge port; and a gas supply unit including a gas supply port, a pressurized gas being supplied to the bubble generator through the gas supply port, wherein the flow passage of the bubble generator extends substantially along a same axis, a plurality of reduced diameter portions each having an inner diameter reduced are provided along a direction along which the liquid flows, and gas-liquid mixing portions are provided downstream of the respective reduced diameter portions in a contiguous manner, each of the gas-liquid mixing portions having an inner diameter larger than a minimum inner diameter of each of the plurality of reduced diameter portions, and the gas introduction port of the bubble generator is formed of a plurality of through holes.

Devices, systems, and their methods of use, for generating droplets are provided. One or more geometric parameters of a microfluidic channel can be selected to generate droplets of a desired and predictable droplet size.

An exhaust gas post-treatment device for an internal combustion engine mixes exhaust gas with a reducing agent. The exhaust gas post-treatment device comprises a mixing chamber through which the exhaust gas circulates and a reducing agent sprayer that sprays a reducing agent in the mixing chamber. The reducing agent sprayer comprises at least one first nozzle and at least one second nozzle, where said at least one first nozzle is designed to produce small droplets, and said at least one second nozzle is designed to produce large droplets.