In the case of a rotor (109) for a device for mixing powder and liquid, which device has a stator which interacts with the rotor (109), at least some shear blades (124) are of wedge-shaped form and are inclined with one face side (233) in a flow direction (239). This has the result, in the case of an effective diversion at side walls (227) situated at the front in a flow direction (239), of an intense shear action at the face sides (233) and of a relatively low risk of formation of deposits and adherent accumulations on the side walls (230) situated at the rear in the flow direction (239).

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for operating a terminal in a wireless communication system includes receiving configuration information regarding a random access channel (RACH) from a base station, and transmitting a RACH preamble based on the configuration information. The configuration information includes information indicating the number of RACH transmission occasions in a frequency axis. A terminal includes a processor configured to receive configuration information regarding a RACH from a base station, and transmit a RACH preamble according to the configuration information, wherein the configuration information includes information indicating the number of RACH transmission occasions in a frequency axis.

A nanobubble-infused liquid is mixed into a dry concrete mix to form an infused wet concrete, where the nanobubble-infused liquid includes a concentration of nanobubbles of a gas at least double a natural concentration of nanobubbles of the gas within a natural state of the liquid. The nanobubble-infused liquid is preferably liquid water infused with a desired concentration of carbon-dioxide (CO.sub.2) nanobubbles sized within a certain prescribed range. The infused wet concrete is then transported to the mold of a concrete products forming machine to form a molded product that has enhanced qualities including increased carbon capture within the resulting concrete product, improved curing times, increased flowability, self-healing, and improved release from the product mold.

A metering and mixing system has at least one mixing device, in particular a continuous mixing device, which has at least one mixing container with a receiving region for receiving a mixing product and at least one mixing unit for mixing the mixing product which is in the mixing container, with at least one first metering device which has at least one first metering container having a receiving region for receiving a first mixing product component and at least one conveying unit for conveying the first mixing product component from the first metering container to the mixing container, and with at least one second metering device which has at least one second metering container having a receiving region for receiving a second mixing product component and at least one metering unit.

A metering and mixing system has at least one mixing device, in particular a continuous mixing device, which has at least one mixing container with a receiving region for receiving a mixing product and at least one mixing unit for mixing the mixing product which is in the mixing container, with at least one first metering device which has at least one first metering container having a receiving region for receiving a first mixing product component and at least one conveying unit for conveying the first mixing product component from the first metering container to the mixing container, and with at least one second metering device which has at least one second metering container having a receiving region for receiving a second mixing product component and at least one metering unit.

Described herein is a method and a system for dispersing particles in a fluid. The method includes stirring a fluid including particles in a stirring container using stirring means. During stirring the fluid is recirculated by continuously retrieving an amount of fluid from a retrieving position. Further, the particles are milled, where during each pass through the milling means a size of particles in the retrieved fluid is reduced. The retrieved fluid having passed through the milling means is continuously reintroduced into the stirring container at a reintroduction position. The reintroduced fluid is mixed with the fluid in the stirring container in a mixing region defined by the stirring means, and the retrieving position is determined such that the retrieved fluid includes particles with an average particle size differing from the average particle size of particles in the mixing region.

Described herein is a method and a system for dispersing particles in a fluid. The method includes stirring a fluid including particles in a stirring container using stirring means. During stirring the fluid is recirculated by continuously retrieving an amount of fluid from a retrieving position. Further, the particles are milled, where during each pass through the milling means a size of particles in the retrieved fluid is reduced. The retrieved fluid having passed through the milling means is continuously reintroduced into the stirring container at a reintroduction position. The reintroduced fluid is mixed with the fluid in the stirring container in a mixing region defined by the stirring means, and the retrieving position is determined such that the retrieved fluid includes particles with an average particle size differing from the average particle size of particles in the mixing region.

Presented and described herein is a stroke system (1) for dosing a fluid from a container (3), comprising a piston pump (5) with a piston (7), so that a fluid can be dosed from a container (3) by displacement of the piston (7), and a temperature control device (29) for controlling the temperature of the fluid to be dosed by means of the stroke system (1).

An apparatus for mixing is disclosed. In embodiments, the apparatus includes a head, a shaft, and a base. In embodiments, the shaft couples to the head and includes a first opening at a bottom portion of the shaft. In embodiments, the base couples to the bottom portion of the shaft and includes a second opening that extends through the base and is aligned to the first opening. In embodiments, the first and second openings are configured to receive a reciprocating motor shaft.

The invention relates to a method for monitoring and controlling the operation of a liquid flow generator (1) configured for operation in a tank (18) housing in a liquid comprising solid matter. The flow generator (1) comprises a propeller (3) and a main body (7) having a drive unit (4), wherein a control unit (4) is operatively connected to the flow generator (1) in order to monitor and control the operation of the flow generator (1), the method comprises the steps of: a) driving the propeller (3) in a normal direction of rotation, wherein the liquid flow is directed from an upstream side of the propeller (3) towards a downstream side of the propeller (3), wherein the main body (7) is located at the upstream side of the propeller (3), b) performing a cleaning sequence in response to a main body cleaning signal, wherein the cleaning sequence comprises the steps of: i) stopping the propeller (3) from rotating in the normal direction of rotation, ii) driving the propeller (3) in a reverse direction of rotation, wherein the liquid flow is directed from the downstream side of the propeller (3) towards the upstream side of the propeller (3) and along the main body (7) in order to remove any solid matter accumulated on the main body (7), and iii) stopping the propeller (3) from rotating in the reverse direction of rotation, c) resume driving of the propeller (3) in the normal direction of rotation.