An apparatus for converting a dry material into a liquid concentrate includes a mixing vessel having an outlet opening, a dispenser for dispensing a predetermined weight of a dry material at a predetermined drop rate onto a predetermined drop location within the vessel, an inlet pipe connectable to a source of liquid for introducing a liquid into the vessel; a sensor for sensing the volume of liquid within the vessel; a pump for supplying a pressurized flow of recirculating liquid to the vessel; and a first, a second and a third agitating nozzle mounted within the vessel. Each agitating nozzle is operative to produce a jet of liquid oriented in a predetermined direction within the vessel. The nozzles are cooperable to generate within the vessel a moving body of liquid into which a dry material dispensed into the vessel is able to dissolve or to disperse.

A rotatable sample disk configured for samples of biological material. The sample disk may include a fill chamber for storing a first biological material, a plurality of first sample chambers positioned in the sample disk farther from the rotational axis of the sample disk than the fill chamber, a plurality of second sample chambers, and a plurality of circumferential fill channels. Each of the second sample chambers may be configured to permit fluid communication with a respective first sample chamber. The plurality of circumferential fill conduits may be configured to permit transfer of the first biological material from the fill chamber to the plurality of first sample chambers upon a first rotation of the sample disk about the rotational axis. Methods of loading a plurality of sample chambers in a sample disk are also provided.

The invention relates to a delivery device having two containers (4a, 4b) that are connected with each other and a mixer (3). Preferably, the mixer can be connected with the containers (4a, 4b) by an outer thread (17). Thereby, the mixer has a coupling element (13), a mixer housing (11) rotatable relative to it and a mixing element (12) that is housed in the mixer housing (11).

Systems and methods for the automated demineralization of bone and decellularization of soft tissue include a mixing assembly communicatively coupled with a control and reporting system. The mixing assembly includes a housing that supports a cannister sub-assembly forming a mixing chamber having a reagent inlet, a reagent outlet, and an internal fluid agitator. A motor is operably coupled with the agitator and configured to spin the agitator in first and second directions relative to the cannister, thereby agitating fluid contained within the mixing chamber. At least one pump is configured to progressively inject measured quantities of a plurality of reagents into the mixing chamber. The associated control and reporting system includes a user terminal that displays a graphical user interface enabling a user to initiate an automated demineralization or decellularization procedure in which the mixing assembly demineralizes tissue placed within the mixing chamber. Other embodiments are also disclosed.

A method for producing methanol including a synthesis step and a separation step, wherein the method includes: a synthesis loop including at least two of the synthesis steps and at least two of the separation steps, a raw material gas mixing step of obtaining a make-up gas by mixing a hydrogen rich gas obtained from a hydrogen recovery unit to which at least part of unreacted gas separated from a final reaction mixture in a final separation step is supplied with a raw material gas comprising at least hydrogen and carbon dioxide and having M value (M value=[H.sub.2]/([2CO]+[3CO.sub.2])) being 1 or less in the synthesis loop, a distribution ratio controlling step of controlling a distribution ratio of the make-up gas, supplying more than 0 mol % and 100 mol % or less of the make-up gas to a first mixing step in accordance with the distribution ratio.

A system for dispensing a metered amount of a fiber additive into a concrete mixing system. The system includes a dispensing hopper to hold the fiber additive and to selectively dispense the fiber additive. A discharge outlet is included having an adjustable area formed between a fixed surface and a movable surface. Fiber additive exiting the dispensing hopper passes between the fixed surface and the movable surface. A conveyor and dosing wheel are the fixed and movable surfaces and dispense the fiber additive through the discharge outlet. A sensor senses an amount of fiber additive within the system and a controller controls the amount of fiber additive dispensed from the system. The specific amount is controlled by altering either a speed of the conveyor or dosing wheel or the distance between the fixed surface and the movable surface. As any of the above decrease, fiber additive discharge decreases.

An epoxy resin mixing station for use in applying epoxy mixtures to construction surfaces is described. The epoxy resin mixing station includes inlet pipes for directing epoxy resin and a hardening agent into a mixing chamber, servo motor-driven pumps for pumping the epoxy resin and the hardening agent, and a monitoring system. The monitoring system records data related to the flow of the epoxy resin and the hardening agent. If the monitoring system detects that an actual ratio of the flow rate of the epoxy resin and/or the hardening agent is outside of a tolerance of a predetermined mix ratio, the epoxy resin mixing station automatically adjusts the flow rate of the epoxy resin and/or hardening agent.

The invention relates to a method for humidifying air in a supply air path (2) of a fuel cell system (1) by means of water injection, wherein product water produced on the cathode side is used, with said product water being separated from the humid exhaust air introduced into the exhaust air path (3) with the aid of a water separator (4) integrated into the exhaust air path (3), wherein, depending on the load, the liquid water content of the exhaust air is varied by means of the temperature of the exhaust air.

The invention also relates to a device for humidifying air in a supply air path (2) of a fuel cell system (1) and to a fuel cell system (1) comprising a device according to the invention.

The system, in one aspect, includes a first bulk storage container for holding a first bulk dry flowable material having a first dispensing assembly coupled with a first outlet, and a second bulk storage container for holding a second bulk dry flowable material having a second dispensing assembly coupled with the second outlet. The system, in one aspect, may further include a mixed storage vessel, as well as a controller in communication with the first dispensing assembly and the second dispensing assembly, the controller programmed to cause the first dispensing assembly to discharge the first amount of the first dry flowable material to the mixed storage vessel and cause the second dispensing assembly to discharge the second amount of the second dry flowable material to the mixed storage vessel over a comparable time period based upon weight based readings the controller receives from first and second load cells.

A proportioner comprising one or more proportioner inlets configured to receive a common concentrated proppant fluid comprising a proppant; two or more flow lines fluidly connected to the one or more proportioner inlets; two or more proportioner outlets, each of the two or more proportioner outlets associated with one of the two or more flow lines; one or more fluid inlets, each of the one or more fluid inlets configured to introduce a proppant-free fluid to the proportioner; and a metering system associated with at least one of the two or more flow lines, each at least one metering system upstream of the proportioner outlet of the flow line with which it is associated and each metering system fluidly connected with at least one of the one or more fluid inlets and configured for proportioning one of the proppant-free fluids into the associated flow line at an injection point.