A method of generating bubbles of a first fluid in a second fluid, the method comprising: flowing a stream of the second fluid through a microfluidic channel; injecting a stream of the first fluid into the microfluidic channel through an aperture such that bubbles of the first fluid form in the second fluid; and sonicating the microfluidic channel with ultrasound so as to cause the bubbles formed at the aperture to divide.

Disclosed is a wind-driven rotating and shaking breather, comprising an open container having a circular cross section, and a lid covering an opening of the open container and having a wind wheel and a motor. A rotating shaft of the motor is connected to the wind wheel. The wind wheel is mounted on a lower portion of the lid and composed of an impeller and a flat bottom plate disposed below the impeller. The wind wheel, horizontally arranged, is inserted into the open container and located above red wine contained in the open container. An edge of the lid or a side wall of the container is provided with an air outlet. The motor drives the wind wheel to extract air in the open container and discharge the air from the air outlet. By using the breather, the purpose of fast breathing is achieved. Also disclosed is a breathing method.

A dispense tap with integral gas/liquid infusion for dispensing a beverage at a given dispensing point inside a restaurant, a coffee shop, a bar, or a convenience store, features a mixing chamber having at least one gas input port configured to receive at least one incoming gas stream; at least one liquid input port configured to receive at least one incoming liquid or concentrate stream; and an infuser configured to mix the at least one incoming gas stream and the at least one incoming liquid or concentrate stream at the given dispensing point within the dispensing tap, and provide a mixing chamber stream containing a gas infused liquid mixture of the at least one incoming gas stream and the at least one incoming liquid or concentrate stream for dispensing as a beverage. The degree of absorption of the at least one incoming gas stream and the at least one incoming liquid or concentrate stream in the gas infused liquid mixture depends at least in part on sensed gas, liquid or concentrate pressure characteristics of one or more of the at least one incoming gas stream received by the infuser, the at least one incoming liquid or concentrate stream received by the infuser, or the gas infused liquid mixture provided from the infuser.

Fluid mixing system for mixing components for a fluid product comprising a mixing regulator for mixing the components and a feed comprising at least two separate conduits, where a base component can be supplied to the mixing regulator in a first conduit and a component to be admixed in a second conduit, where a first sensor for determining the concentration of a chemical compound in the component to be admixed and a Brix sensor for determining a Brix value of the component to be admixed are disposed upstream of the mixing regulator in the second conduit and where a control unit is provided which can control the mixing process of the components by the mixing regulator in dependence of the concentration measured and the Brix value measured.

An air treatment system is provided which includes an appliance and a replaceable cartridge installable therein. The replaceable cartridge contains a liquid compound to be aerosolized and has a cartridge outlet through which the aerosolized compound is discharged during operation. A pump is provided to supply air to the replaceable cartridge to generate the aerosolized compound from the liquid compound contained in the replaceable cartridge, and a controller is provided for controlling the pump to supply the air to the replaceable cartridge to generate and discharge the aerosolized compound from the appliance. The appliance may further include a lift mechanism to assist in receiving the cartridge and moving the cartridge from a loading position to an operational position. The appliance may also communicate with a smartphone or other external device to provide additional functionality.

The present invention discloses a novel sand mixing device, including an electric motor and a hydraulic system, wherein the electric motor is used as the power source of the hydraulic system, and the hydraulic system drives all the actuating elements in the sand mixing device. Beneficial effects: in the present invention, the traditional diesel engine drive mode is changed into a motor drive mode and a hydraulic system is maintained, and the power is all in the form of an electro-hydraulic system, realizing the advantages of environmental protection and energy saving with the electric motors as the power source, also taking into account the advantages of small size and flexible layout of the drive parts of the hydraulic system. Therefore, the issues of not environmental-friendly, large size, inconvenient transportation, well site layout, and maintenance in the application of traditional sand mixing device can be addressed.

The present invention relates to a mixing apparatus. A production unit produces a working fluid that is in a supercritical state or a subcritical state. A storage unit stores a material. A dissolving unit dissolves the material in the working fluid. A mixer mixes the material together in the presence of the working fluid. A material feed valve opens or closes a flow passage through which the material is to pass to be fed from the storage unit into the dissolving unit. A working fluid inflow valve opens or closes a flow passage through which the working fluid is to pass to flow into the dissolving unit from the production unit. A mixer inflow valve opens or closes a flow passage through which the working fluid and the material are to pass to flow into the mixer from the dissolving unit.

Systems, methods and apparatus for Shear TUrbulence Resuspension Mesocosm (STURM) tanks, with high instantaneous bottom shear stress and realistic water column mixing. The tanks can be programmed to produce tidal or episodic sediment resuspension for extended time periods, over muddy sediments with a variety of infaunal benthic organisms. A resuspension paddle produces substantially uniform bottom shear stress across the sediment surface while gently mixing a 1 m deep overlying water column. The STURM tanks can be programmed to different magnitudes, frequencies, and durations of bottom shear stress and thus resuspension with proportional water column turbulence levels over a wide range of mixing settings for benthic-pelagic coupling experiments.

An insert for a liquid-holding container may include a body comprising a wall, open first and second ends, and a lumen extending from the open first end to the open second end. The insert also may include a plurality of first openings formed in the wall, the first openings being situated between the first and second ends, and each of the first openings defining an area, and one or more second openings formed in the wall, the one or more second openings being situated between the first and second ends, each of the one or more second openings defining an area that is greater than the area defined by any of the first openings, where at least one of the one or more second openings is situated closer to the first end than any of the first openings, and wherein each of the first and second openings is sized to permit the passage of a liquid.

Systems and methods are described for dissolving ammonia gas in deionized water. The system includes a deionized water source and a gas mixing device including a first inlet for receiving ammonia gas, a second inlet for receiving a transfer gas, and a mixed gas outlet for outputting a gas mixture comprising the ammonia gas and the transfer gas. The system includes a contactor that receives the deionized water and the gas mixture and generates deionized water having ammonia gas dissolved therein. The system includes a sensor in fluid communication with at least one inlet of the contactor for measuring a flow rate of the deionized water, and a controller in communication with the sensor. The controller sets a flow rate of the ammonia gas based on the flow rate of the deionized water measured by the sensor, and a predetermined conductivity set point.