9 results about "Fluid layer" patented technology

This invention discloses a skin organ-on-a-chip, relating to the fields of biomedical engineering and microfluidics. The chip includes a drive module integrating a reservoir with a fixed height difference, a culture layer with arrayed independent skin culture units, and a fluid layer separated by a porous membrane. The drive module utilizes the hydrostatic pressure generated by the liquid level difference to drive the culture medium to form a stable laminar flow in an optimized fluid channel network, achieving pump-free perfusion. This invention achieves stable pump-free drive through a reservoir with a fixed height difference; the integrated sealed structure eliminates the risk of contamination and ensures complete isolation between units; the simulation-optimized uniform flow channel network, in synergy with the drive, ensures high consistency in high-throughput parallel culture, enabling the chip to provide a long-term stable biomimetic perfusion microenvironment. A single experiment can efficiently complete multiple replicates and multi-condition transdermal drug screening, toxicity testing, and disease model construction, improving experimental throughput, data reliability, and ease of operation.

A method for manufacturing a substrate of a carrier plate, a bearing structure is formed in a mold, a plurality of columns are inserted, a fluid layer is formed on the bearing structure, a molten glass is covered on the fluid layer and covers the plurality of columns, after the molten glass is cooled to solidify into a glass substrate, the fluid layer, the mold, the bearing structure and the plurality of columns are sequentially removed to form a plurality of through holes on the glass substrate, so that the plurality of columns are removed to form the through holes, which is not only simple in process, but also short in process time, thus facilitating mass production.

This invention provides an effective structure for maintaining a suitable temperature in a robot. The robot (100) includes: a frame (500); a skin (502) covering the frame (500); a heat source for heating a fluid; and a pressurizing unit that pressurizes a space (504) surrounded by the frame (500) to allow the heated fluid to flow out of the space (504), thereby forming a fluid layer (506) between the skin (502) covering the frame (500) and the frame (500). The pressurizing unit draws in external air from the interior of the frame (500) to pressurize the space (504).

A chip lab cartridge, preferably for single use, in particular for a modular medical analysis system, has a layer structure with a pneumatic layer and a fluidic layer, which are arranged in layers in an extension plane and are separated by an elastic membrane. The pneumatic layer and the fluidic layer form a first cavity, which is formed in a first part in the pneumatic layer and in a second part in the fluidic layer. A first sample chamber is bounded by the elastic membrane and is formed in the first cavity, which is connected in a fluid-conducting manner to a first fluid channel and a second fluid channel formed in the fluidic layer. A liquid is introduced into the first sample chamber by the first fluid channel and / or the second fluid channel.

The present application relates to a kind of inertial bounce suppression high conductivity impact device and force transmission method and engineering machinery, belong to impact breaking hammer, rock drilling, pile driving, deep sea pile driving, dynamic compaction, metal forming and other impact operation machinery technical field.Solve the problem of serious bounce and energy waste produced by prior art.Impact hammer and impacted part, impact hammer is provided with impact end face, and impacted part is provided with impact end face;Impact end face and impact end face form cavity for accommodating medium between them, cavity is used to fill incompressible fluid medium to form fluid layer, and constraint structure is arranged to prevent medium from escaping laterally.When impact hammer is buffered to impact impacted part through fluid layer, bounce can be basically eliminated, energy transmission efficiency can be significantly improved, noise can be significantly reduced, impact surface temperature can be significantly reduced, and equipment life can be extended.The present application can be applied to breaking hammer, rock drill, pile driver, dynamic compaction machine, handheld electric hammer, deep sea pile hammer and other engineering machinery.

The present application relates to the field of metal casting, and discloses a slag removal and purification process in gray cast iron production, which comprises the following steps: obtaining a metal liquid stream with a tapping temperature of 1450 DEG C to 1480 DEG C, and spraying a mixed material composed of asymmetric particle size graded ferrosilicon inoculant particles and silicon-based slag remover powder in the pouring runner, using discrete liquid phase droplets formed by melting of the slag remover to capture micrometer-sized inclusions, and using latent heat released by dissolution of the inoculant to establish a micro area temperature gradient, inducing micro thermal capillary convection to shear and strip the viscous fluid layer on the surface of the inclusions, pumping the dispersed inclusions into the droplets to aggregate into large particle slag clusters, and removing the slag clusters by standing, so that the present application uses endogenous latent heat compensation mechanism to solve the contradiction between purification kinetics and heat dissipation, makes the inclusions change from random collision to directional enrichment, and improves the quality of the castings.

The application discloses a charging pile power supply structure with excellent heat dissipation performance and belongs to the field of charging pile heat dissipation. The charging pile power supply structure with excellent heat dissipation performance comprises a charging pile body, a power supply shell is arranged in the charging pile body, characterized in that an intermediate water cooling assembly is arranged in the power supply shell, a mounting shell is arranged on the side wall of the charging pile body, and a circulating pump is arranged in the mounting shell. The M-shaped water cooling flow channel is provided, turbulence protrusions are equidistantly arranged in the M-shaped water cooling flow channel, and the sawtooth vortex grooves of the bottom wall of the flow channel are matched, so that the heat dissipation efficiency and the scale prevention capability are doubled. The M-shaped shape and the turbulence protrusions can break the fluid laminar state and thin the heat exchange boundary layer, the continuous shear force generated by the micro vortex is utilized by the sawtooth vortex grooves, the solid particles are effectively prevented from adhering to the wall surface and the scale is prevented from accumulating at the bending part and the back water surface of the protrusions, and the heat balance of the high-power power supply module during full-load operation is ensured.

This disclosure relates to a liquid processing apparatus, the liquid processing apparatus comprising: a fluid layer comprising a plurality of channels and openings in the surface of the fluid layer, extending through at least a portion of the thickness of the fluid layer to one of the plurality of channels; a rigid layer comprising an actuated portion; and a liquid storage capsule positioned between the fluid layer and the actuated portion, the liquid storage capsule comprising a body defining a volume in which a liquid is stored, the body comprising a first deformable portion, a main liquid storage portion, and a limiting portion connecting the first deformable portion to the main liquid storage portion; and a sealing layer configured to seal the volume, the liquid storage capsule being positioned above the opening such that a portion of the sealing layer covers the opening, the actuated portion comprising a projection extending toward the liquid storage capsule, the actuated portion being actuated from a first position in which the projection does not deform the first deformable portion to a second position in which the projection deforms the first deformable portion and brings into contact with a portion of the sealing layer, causing the portion of the sealing layer to rupture, and when the actuated portion is in the second position, the projection does not deform the limiting portion.

The present application provides a microfluidic channel structure and a microfluidic chip comprising same. The microfluidic channel structure comprises a plurality of liquid inlet channels arranged in parallel and a front-end main channel; one end of each of the plurality of liquid inlet channels is used for liquid feed; and the other ends of the plurality of liquid inlet channels converge and are communicated with the front-end main channel. The microfluidic channel structure further comprises a mixing channel consisting of a plurality of Ω-shaped structure channels connected in sequence; one end of the mixing channel is communicated with the end of the front-end main channel away from the liquid inlet channels; the other end of the mixing channel is communicated with a liquid outlet channel; and the cross-sectional area of the front-end main channel is not greater than that of the single liquid inlet channel. The mixing channel uses the Ω-shaped structure channels, so that when fluid passes through each of bends of the Ω-shaped structure channels, a shear force can be generated due to the velocity difference between fluid layers, enhancing the interaction between different fluid layers; the bent portions of the Ω-shaped structure channels form vortexes, further breaking the layering of the fluid, promoting mixing, and helping to improve mixing efficiency.