The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.

A system and method for introducing a slurry mixture for making gypsum board is disclosed. The system includes, for example, a mixer, a foam injector, and a canister for mixing and moving a slurry mixture of foam and gypsum slurry. Also included in the system is an apparatus having a funnel body constructed and arranged to further mix the slurry mixture. The funnel body includes a number of baffles projecting from its inner wall towards a center and that are spaced around the inner wall. The baffles induce turbulence into the slurry mixture as the slurry mixture moves towards its outlet, thus further mixing the mixture and reducing the flow rate of the slurry mixture before its exits from the outlet for forming the gypsum board.

A system and method for introducing a slurry mixture for making gypsum board is disclosed. The system includes, for example, a mixer, a foam injector, and a canister for mixing and moving a slurry mixture of foam and gypsum slurry. Also included in the system is an apparatus having a funnel body constructed and arranged to further mix the slurry mixture. The funnel body includes a number of baffles projecting from its inner wall towards a center and that are spaced around the inner wall. The baffles induce turbulence into the slurry mixture as the slurry mixture moves towards its outlet, thus further mixing the mixture and reducing the flow rate of the slurry mixture before its exits from the outlet for depositing onto paper to form the gypsum board.

In a fine bubble generator having a structure in which a columnar portion protrudes from an orifice of a tubular member, the presence of the columnar portion inhibits a flow of a fluid, so that a flow rate of the fluid that generates fine bubbles is limited. In addition, foreign matter may be sandwiched between the columnar portions. It takes time and effort to manufacture the columnar portions. Furthermore, when the columnar portion is supported in a cantilever state, it is difficult to ensure mechanical rigidity and also to ensure durability.

A fine bubble generator includes: an inlet portion that gradually reduces in diameter from an inlet of a tubular body; an orifice continuous to the inlet portion; and an enlarged-diameter portion continuous to the orifice, and the inlet portion, the orifice and the enlarged-diameter portion are sequentially formed. A boundary between the orifice and the enlarged-diameter portion is a radially elevation surface, and a diameter of the enlarged-diameter portion is 3 to 10 times a diameter of the orifice. A concave portion is preferably formed in an outlet peripheral wall.

A static mixer for desalting a fluid is disclosed. A static mixer can include a housing, a reduction cone disposed concentrically within the housing; and an expansion cone disposed concentrically within the housing; wherein the static mixer is configured to direct fluid flow through the reduction cone onto the expansion cone, thereby mixing the fluid.

Provided according to an aspect of the invention may be an apparatus for manufacturing cosmetic, which includes a housing which forms an outer appearance; an internal phase container which is provided in the housing, and which stores internal phase fluid excluding surfactant; an external phase container which is provided in the housing, and which stores external phase fluid excluding surfactant; a channel unit which generates emulsion by mixing the internal phase fluid provided from the internal phase container and the external fluid provided from the external phase container; and an operative unit which provides external force required to form and discharge emulsion at the channel unit by manipulation of a user.

The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.

Methods for the detection of components from biological samples are provided. In certain aspects, the methods may be used to detect and/or quantify specific components in a biological sample, such as tumor cells (e.g., circulating tumor cells). Systems and devices for practicing the subject methods are also provided.

An apparatus for dissolving a gas into a liquid includes a liquid inlet for supplying liquid into the apparatus, a gas inlet for supplying gas into the liquid within the apparatus and a venturi arranged to dissolve the gas into the liquid passing through the venturi. The apparatus also includes an outlet for the liquid and dissolved gas downstream of the venturi. At least part of the liquid inlet, at least part of the gas inlet, at least part of the venturi and at least part of the outlet are integrally formed in a single piece of material.

A bubble generating device for sewage purification includes: an outer cylinder 6 vertically placed in water; an injection port 2A placed at a lower central portion in the outer cylinder 6 for upwardly injecting air as bubble flow supplied from an air supply source; and microbubble generating device 3 placed higher than the injection port 2A for refining bubbles injected from the injection port 2A. A throat portion 30 for narrowing a flow path of bubble flow and water flow which rises in the outer cylinder 6 is placed between the injection port 2A and the microbubble generating device 3.