An apparatus (100) for mixing a fluid (F) comprises a mixing container (10) with a container wall (11) for holding the fluid (F). One or more acoustic transducers (21, 22) are arranged on the container wall (11) and configured to generate respective acoustic waves (W1, W2) directed into the fluid (F) for causing a respective flow pattern (F1, F2) in the fluid (F) by acoustic streaming. A controller (15) is configured to control the acoustic transducers (21, 22) to automatically switch between generation of different acoustic waves (W1, W2) for causing switching between different flow patterns (F1, F2).

A fluid mixing system includes a support housing having an interior surface bounding a chamber. A flexible bag is disposed within the chamber of the support housing, the flexible bag having an interior surface bounding a compartment. An impeller is disposed within the chamber of the flexible bag. A drive shaft is coupled with the impeller such that rotation of the drive shaft facilitates rotation of the impeller. A drive motor assembly is coupled with the draft shaft and is adapted to rotate the drive shaft. An adjustable arm assembly is coupled with the drive motor assembly and is adapted to move the drive motor assembly which in turn moves the position of the drive shaft and impeller. An electrical controller can control movement of the adjustable arm.

A method for operating a shaking machine, in particular for optimizing an operating state of the shaking machine, including shaking at least one shaking material in at least one shaking vessel; setting at least one target operating parameter to at least one target value or one target range; detecting an adjustment range of at least one additional operating parameter; determining an operating state by means of an optimizer that varies at least one adjustable operating parameter and by using at least one model, such that at least one target operating parameter maintains, achieves, or approaches the target value or target range, wherein at least one operating state of the shaking machine is imaged by at least one model.

A laboratory device (4, 9), in particular a magnetic stirrer, comprises at least one adjustable operating parameter for controlling at least one laboratory device function, and an outer housing (2). The outer housing (2) has a coupling device (11a, 11b) for coupling the laboratory device (4, 9) to at least one further laboratory device (5, 9) for the same at least one laboratory device function, at which further laboratory device the at least one operating parameter can also be adjusted, and the coupling device (11a, 11b) is configured such that by means of the coupling device (11a, 11b) the laboratory device (4, 9) and the at least one further laboratory device (5, 9) can be operated simultaneously and by means of a common adjustment device the at least one operating parameter can be adjusted in a central manner independently and/or consistently for the laboratory device (4, 9) and the at least one further laboratory device (5, 9).

This in-line active and reverse calculating mass balance blending system can maintain a chemical at desired control points, such as with respect to concentration, temperature, and/or pressure, while the output flow rate is changing dynamically to a point of use. A blending unit is configured to receive and blend at least two species and deliver a mixture at selected concentrations to points of use. A controller can be configured to determine a mass balance to maintain the concentrations in the mixture using information from metrology systems and a flow in an output to the at least one point of use. The controller also can be configured to maintain a concentrations in the mixture within a concentration range by controlling flow rates to the blending unit.

Systems and methods have demonstrated the capability of rapidly cooling the contents of pods containing the ingredients for food and drinks.

In some implementations, a device may receive spectroscopic data associated with a dynamic process. The device may generate a principal component analysis (PCA) model based on a first block of spectra from the spectroscopic data. The device may project a second block of spectra from the spectroscopic data to the PCA model generated based on the first block of spectra. The device may determine a value of a metric associated with the second block based on projecting the second block of spectra to the PCA model. The device may determine whether the dynamic process has reached an end point based on the value of the metric associated with the second block.

An ozone water generating device includes a housing, an ozone generator for generating ozone, and an ejector having a water inlet, a water outlet, and an air inlet. The ozone generator and the ejector are installed in the housing. An exit of the ozone generator is connected to the air inlet of the ejector. The ozone water generating device can directly output ozone water, and has a compact structure and is small in size.

The invention provides a system for the preshearing based control of the flow and deformation behavior, i.e., the setting kinetics, and the time dependent shear viscosity, elasticity of aqueous cementitious suspensions that can be used for bone repair and regeneration. The dynamic cement microstructure is tailored to the demands of the surgical tasks (faster/slower setting) or additive manufacturing tasks (lower/higher viscosity) by application of various preshearing conditions. Since the relationships between the preshearing and pressurization conditions and the setting kinetics and the time dependent changes in elasticity and viscosity are complex, a priori characterization of viscoelastic properties using the advanced rheological characterization technique of small-amplitude oscillatory rheometry is needed to enable such tailoring. The preshearing system is intended to give control on the injectability and setting time of any calcium phosphate cement formulation to the surgeon during an orthopedic surgery where a batch of bone cement is processed. Other possible utilizations of the system include controlling the setting kinetics, shear viscosity and facilitating the resultant flow stability of cementitious ceramic suspensions processed in direct ink writing assemblies for additive manufacturing of cement constructs, in injection systems for oil wells, restoration and fracking.

An apparatus for mixing bone cement for use in orthopedic surgeries includes a mixing region and an agitator for mix the cement ingredients. A temperature sensing means of apparatus determines when that the cement mix can no longer be used. The apparatus can be operated or acted on by a power tool for the mixing of the bone cement. The power tool and/or mixing apparatus may include a mechanical torque limiter that inhibits the agitator as a result of mixing torque exceeding a threshold value. A timer of the apparatus may be started by a sensor of the apparatus or by the user in response to a mechanical torque value. When the timer is complete, a cue by the apparatus signals to the user that the mixed cement is ready and able to be applied.