A method and a device for air injection into a vinification tank (1) use air injection nozzles (2) installed therein. A rule is applied for automatic variation of injections with time, by a coordinated and combined action of the nozzles, so that for each of the installed nozzles the delivered air jets may be modulated in duration and frequency and combined with the jets delivered by the other nozzles according to a programmable sequence.

A microfluidic device (100) for mixing a liquid L is provided. The microfluidic device (100) comprises a microfluidic chamber (20), having an inlet (30), and arranged to receive the liquid L therein. In use, the microfluidic device (100) is arranged to control translation through the liquid L of a body B introduced therein, wherein the translation of the body B is due to a potential field acting on the body. In this way, the controlled translation of the body B mixes the liquid L in the microfluidic chamber (20).

A method and system for treating wastewater is disclosed. In one example the method comprises activating a mixing system that imparts a motive force on wastewater in a vessel, measuring at least one property of a first portion of the wastewater at a first time, measuring the at least one property of a second portion of the wastewater at a second time subsequent to the first time, calculating a difference between the at least one property measured at the first time and the at least one property measured at the second time, performing a determination of whether the difference is within a predetermined allowable range of differences, and responsive to a result of the determination, controlling a component of the mixing system.

A sample introduction system provides mixing of a sample and a diluent within the container via gas injection. In one or more implementations, the sample introduction system causes a probe of an autosampler to be inserted into a container containing a sample and a diluent so that an end of the probe is submerged beneath a surface of the diluent and the sample. Gas is then injected through the probe to mix the sample and the diluent within the container. An aliquot of the mixed sample and diluent is then withdrawn through the probe.

Provided is a bubble volume control method and apparatus, and more particularly, to a bubble volume control method and apparatus for controlling the volume of a bubble by increasing or decreasing the volume of the bubble by emitting an ultrasonic wave having a resonance frequency corresponding to the size of the bubble located at the bottom of a container containing a liquid, such as water with bubbles composed of air, vapor, etc., toward the bubble by using an ultrasonic generator above the container, and maximizing a function of adjusting the volume of a bubble through a resonance effect by adjusting a liquid surface height of a liquid with the bubble according to a wavelength of an emitted ultrasonic wave.

A method and a device for air injection into a vinification tank (1) use air injection nozzles (2) installed therein. A rule is applied for automatic variation of injections with time, by a coordinated and combined action of the nozzles, so that for each of the installed nozzles the delivered air jets may be modulated in duration and frequency and combined with the jets delivered by the other nozzles according to a programmable sequence.

Apparatus for controlling flow of fluid in a fluid body containing a first fluid, the apparatus including: a baffle at least partially submerged in the fluid body, the baffle including: in inlet that in use is coupled to a fluid supply adapted to supply a second fluid; at least one outlet; at least one internal channel extending from the inlet to the at least one outlet to thereby allow second fluid to be expelled from the at least one outlet; and, an outer surface which acts with the at least one outlet to at least partially guide second fluid expelled from the outlet to induce flow within the fluid body and thereby agitate the fluid body.

According to various embodiments, a method is provided that comprises washing an array of DNA-coated beads on a substrate, with a wash solution to remove stacked beads from the substrate. The wash solution can include inert solid beads in a carrier. The DNA-coated beads can have an average diameter and the solid beads in the wash solution can have an average diameter that is at least twice the diameter of the DNA-coated beads. The washing can form dislodged DNA-coated beads and a monolayer of DNA-coated beads. In some embodiments, first beads for forming an array are contacted with a poly(ethylene glycol) (PEG) solution comprising a PEG having a molecular weight of about 350 Da or less. In some embodiments, slides for forming bead arrays are provided as are systems for imaging the same.

A preparation apparatus includes a first tank, a second tank, a preparation tank, and a computer having a hardware processor. The first tank contains a first liquid. The second tank contains a second liquid having a lower viscosity than the first liquid. The preparation tank stirs the first liquid supplied from the first tank and the second liquid supplied from the second tank to prepare a preparation liquid. The hardware processor measures a viscosity of the first liquid based on a supply time required to supply a specified amount of the first liquid at a constant pressure from the first tank to the preparation tank, and supplies an amount of the second liquid to the preparation tank based on the measured viscosity of the first liquid so as to cause the preparation liquid to have a target viscosity.

Various embodiments of a low-volume sequencing system are provided herein. The system can include a low-volume flowcell having at least one reaction chamber of a defined volume (e.g., less than about 100 l). The system can also include an automated reagent delivery mechanism configured to reversibly couple with the inlet port corresponding to a target reaction chamber thereby placing allowing for reagent to be accurately moved from a storage container to the reaction chamber with minimal reagent waste. The flowcells can include a plurality of reaction chambers (e.g., 6) thereby allowing for parallel analysis of multiple samples. Various methods of analyzing a biomolecule are also provided herein.