Examples include microfluidic devices. Example microfluidic devices comprise a first microfluidic channel, a second microfluidic channel, and microfluidic output channel fluidly coupled to the first microfluidic channel and the second microfluidic channel via a fluid junction. The example device comprises a fluid actuator disposed in the microfluidic output channel to actuate to thereby pump a first fluid and a second fluid into the microfluidic output channel.

Described herein is a method for producing a sealant. The method includes mixing a first material with a second material at a manufacturing site to produce the sealant. The method also includes applying x-ray energy to the sealant at the manufacturing site. The method includes measuring an amount of fluorescence emitted from the sealant in response to applying the x-ray energy. The method also includes calculating a mix ratio of the first and second materials of the sealant based on the amount of fluorescence. The method includes determining whether the mix ratio is within a predetermined mix ratio range.

Described herein is a method for producing a sealant. The method includes mixing a first material with a second material at a manufacturing site to produce the sealant. The method also includes applying x-ray energy to the sealant at the manufacturing site. The method includes measuring an amount of fluorescence emitted from the sealant in response to applying the x-ray energy. The method also includes calculating a mix ratio of the first and second materials of the sealant based on the amount of fluorescence. The method includes determining whether the mix ratio is within a predetermined mix ratio range.

Disclosed is an automatic ink color blending apparatus, which comprises an apparatus cabinet (1) with a carrying platform (11), an ink bucket moving platform (2) provided on the carrying platform, the ink bucket moving platform including a moving guide rail (21), a weighing device (22) and an ink bucket (23), and wherein the ink bucket is disposed on the weighing device,the weighing device is provided on the moving guide rail and moves along the moving guide rail, an ink supply tank (3) arranged above the ink bucket moving platform,and wherein the ink supply tank includes a plurality of ink supply devices (31), each of which provides inks of different chromaticity and a control terminal (4) provided on the carrying platform, which is electrically connected to the ink supply tank, the moving guide rail and the weighing device respectively, for obtaining target chromaticity information, and generating control information of ink selection to select one or several ink supply devices to inject the corresponding chromaticity ink into the ink bucket sucessively, wherein the control information of ink selection includes selection information of an ink device and information of the amount of ink to be injected.

A wastewater treatment device has: an ozone generator which supplies ozone; a mixer which mixes ozone supplied from the ozone generator with wastewater and supplies ozone mixed wastewater; an ozone oxidation unit which progresses ozone oxidation in the ozone mixed wastewater while passing the ozone mixed wastewater therethrough and discharges wastewater in which the ozone has been consumed; a biological treatment unit which performs biological treatment on the wastewater discharged from the ozone oxidation unit using microorganisms; and an adjusting device which adjusts the amount of ozone to be mixed with the wastewater by the mixer so that ozone in an amount that inhibits the microorganisms of the biological treatment unit does not remain in the wastewater discharged from the ozone oxidation unit.

A chemical liquid preparation method of preparing a chemical liquid for treating a film formed on a substrate, including a gas dissolving process in which an oxygen-containing gas and an inert-gas-containing gas are dissolved in the chemical liquid by supplying the oxygen-containing gas which contains oxygen gas and the inert-gas-containing gas which contains an inert gas to a chemical liquid, wherein in the gas dissolving process, a dissolved oxygen concentration in the chemical liquid is adjusted by setting a mixing ratio between the oxygen-containing gas and the inert-gas-containing gas supplied to the chemical liquid as a mixing ratio corresponding to a predetermined target dissolved oxygen concentration.

Provided is an apparatus and a method for producing a mix of a first type of food products and a second type of food products that fulfills at least two target criteria including a desired weight ratio between the first and second type of food products and a lean/fat ratio of the mix. At least three controllable in-feed channels at an in-feed end of a conveyor supply separate streams of the first and second food products. One of the in-feed channels supplies the first type of food products and two of the in-feed channels supply a second type of food products being distinguished via a different lean/fat ratio estimate. The determined weight of food products and the measured lean/fat ratio of the food products are used as operation parameters so that the mix fulfills the at least two target criteria.

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.

Some embodiments provide a recirculating aquaculture system for aquatic life. The system includes a culture tank, a sensor configured to measure a current dissolved oxygen level in the culture tank, a variable speed pump configured to circulate water through the culture tank, and a controller in communication with the sensor and the variable speed pump. The controller is configured to retrieve a dissolved oxygen threshold level and a maximum gas to liquid ratio in the culture tank, retrieve the current dissolved oxygen level, compare the current dissolved oxygen level with the dissolved oxygen threshold level, and automatically increase one of a current water flow rate and a current oxygen flow through the system when the current dissolved oxygen level is less than the dissolved oxygen threshold level.

Systems, methods, and software program products for detecting an out-of-product condition in a chemical dispensing system. An optical sensor includes a photodetector and a light source configured to generate a beam of light. The light source is positioned such that the beam of light is incident on a supply line at an oblique angle. The supply line displaces the beam of light in dependence on the refractive index of a medium in the supply line. The photodetector is positioned so that it is in the optical path of the displaced beam of light when the refractive index of the of the medium in the supply line is indicative of one of a wet state or a dry state. A detection module receives an electrical signal from the photodetector and determines if the out-of-product conditions exists base thereon.