522 results about "Fluid cell" patented technology

The invention provides a liquid cell for an atomic force microscope. The liquid cell includes a liquid cell housing with an internal cavity to contain a fluid, a plurality of conductive feedthroughs traversing the liquid cell housing between the internal cavity and a dry side of the liquid cell, a cantilevered probe coupled to the liquid cell housing, and a piezoelectric drive element disposed on the cantilevered probe. The cantilevered probe is actuated when a drive voltage is applied to the piezoelectric drive element through at least one of the conductive feedthroughs. A method of imaging an object in a liquid medium and a method of sensing a target species with the liquid cell are also disclosed.

A mattress or another type of support surface which allows for discrete manipulation of the pressure on a supported body. The present invention includes resilient fluid cells having a spring bias, grouped to allow adjustable dynamic control of the pressure exerted on various locations of the body support. Each of the fluid cells has a multiple port air distribution system, either integral to the fluid cell or attached to the fluid cell. The multiple port air distribution system includes ports and allows for the control of intake flow, outflow, and sound. A harnessing system is attached to the ports of the multiple port air distribution system and interconnects the fluid cells in a pattern desired by the user. The harnessing system controls the directions and flow volume of air into the fluid cells creating selected zones. The harnessing configuration is customizable to a particular patient. The fluid cells are held together by a casing. The casing supports, houses, and prevents movement of the fluid cells and the harnessing system.

The utility model relates to a zinc-nickel sap fluid cell, which comprises a galvanic pile which is a multi-section series connection of cell monomers, electrolyte, a storage tank, a liquid pump and a plurality of pipelines; wherein, the cell monomer comprises a nickel electrode anode, a cathode current collector of deposit zinc, and electrolyte; wherein, the electrolyte is a zincous alkaline solution, and two cell monomers are connected in series via a bipolar plate. In the process of charge and discharge, the electrolyte continuously flows between the storage tank and the galvanic pile via the pipelines driven by the liquid pump. Zinc settles onto the cathode current collector and becomes a cathode active substance from the electrolyte at the time of charging, while zinc dissolves into the electrolyte from the cathode current collector at the time of discharging. The utility model has the advantages of simple fabrication technology, low cost, high cycle life and other advantages.

Reactant supply and effluent storage cartridges adapted for use with a closed liquid feed fuel cell system, as well as closed liquid feed fuel cell systems. The cartridge includes at least first and second volumes and comprises: a first reactant reservoir for holding a first reactant, the first reactant reservoir being configured to occupy substantially all of the first volume when filled with the first reactant; a second reactant reservoir for holding a second reactant, the second reactant reservoir being configured to occupy substantially all of the second volume when filled with the second reactant; and an effluent reservoir for holding effluent produced by the fuel cell system, the effluent reservoir being configured to occupy, when filled with the effluent produced by the fuel cell system, a portion of the first volume, a portion of the second volume, or a portion of the first and second volumes. The reactant supply cartridge of may further comprise an electrolyte reservoir for holding an electrolyte. In other embodiments, the present invention is directed to a computer system comprising the detachable cartridges and closed liquid feed fuel cell systems disclosed herein.

A heat and humidity exchanger stack formed by stacking at least one reactant gas source half-cell and at least one reactant gas exhaust half-cell, with each half-cell comprising a porous flowfield, wherein each pair of adjacent half-cells of the stacked heat and humidity exchanger are separated by a member selected from a water permeable/heat conducting member, a water impermeable/heat conducting member, or a water impermeable/heat insulating member and wherein at least one of the members is a water permeable/heat conducting member separating a reactant gas supply half-cell from an adjacent reactant gas exhaust half-cell. The stack may further comprise at least one thermal management fluid cell and/or a heat sink cell separated from the adjacent half-cells in the stack with one of the heat conducting or heat insulating members.

A liner adapted to be interposed between the interior surface of a protective headgear and a wearer's head includes a plurality of networked fluid cells adapted to distribute and dissipate an impact force to the liner, and/or headgear with which the liner is used, across a larger area of the wearer's head as compared with the impact location, and also to dampen the tendency of the wearer's head from rebounding back from the impact location by transferring fluid through the network from fluid cells at the impact location to those in an opposed region. Discrete fluid cells interspersed among the networked fluid cells maintain the liner and/or the headgear in a predetermined orientation on the wearer's head. Fluid flow within the liner may be restricted or directed by configuring the fluid passageways. A liner may further include means for moving fluid into or out of the fluid cells.

A system and method for shallow water simulation may provide a framework for solving General Shallow Wave Equations (GSWE) to efficiently simulate 3D fluid effects on arbitrary surfaces using a height field representation. The height field representation may include height columns constructed along surface normals, which may be dependent on a condition of boundary cells adjacent to fluid cells and/or artificial viscosity effects. The framework may provide implicit schemes for solving for the effects of external forces applied to the fluid, including gravity and surface tension, and explicit schemes for solving for advection effects. The system and method may be implemented on general-purpose CPU(s) and/or GPU(s) and may be capable of simulating a variety of fluid effects including: waves, rivulets and streams, drops, and capillary events. In some embodiments, the system and method may achieve real-time fluid control and fluid shape design through user-interaction (e.g., in a graphical painting application).

The present invention provides a method of performing analyses and assays involving multiple interactions of reagent-containing fluid flows with liquid and solid target substances. The methods of the invention allow the simultaneous manipulation of different fluids on a small planar surface. The invention also provides a flow cell and method of use thereof for analyzing fluid-fluid and fluid-solid interactions in a substantially planar system. The flow cell contains at least one chamber and a plurality of inlets thereto allowing the introduction of a plurality of fluids in fluidic contact. The cell depth is the smallest dimension of the flow cell, and is of a magnitude, from about 50 to about 1000 microns such that any mixing of adjacent fluids in the chamber is substantially limited to mixing by passive diffusion. Interactions between reagents in fluids and target substances maintained in the fluid cell, or interactions between diffusion-mixed reagents in adjacent fluids, may be analyzed by standard analysis methods.

A portable device for enhancing circulation in a limb by applying intermittent squeezing force on the limb, the device comprising at least one inflatable fluid-cell having a proximal face and a distal face; a rigid member juxtaposed with the distal face of the air-cell, the rigid member is having two lateral sides; at least one adjustable strap connectable to the lateral ends of the rigid member for encircling the limb; and a mechanism for intermittently inflating and deflating the at least one fluid cell.

The invention discloses a micro-fluidic chip achieving multi-index detection, and relates to the field of micro-fluidic chip medical treatment detection. The micro-fluidic chip achieving multi-index detection comprises a gas control channel layer, an organic macromolecular polymer film layer and a micro-fluid channel layer. All the layers of materials are integrated, bonded and sealed to form the chip structure. The micro-fluidic chip is characterized in that the gas control channel layer comprises a sample inlet hole, a gas outlet hole, two pneumatic micro valves and upper portions of multiple liquid storage pools connected in series; holes are formed in the portions, corresponding to the sample inlet hole, the pneumatic micro valve structures, the liquid storage pools and the gas outlet hole, of the organic macromolecular polymer film; the micro-fluid channel layer is provided with lower portions of the liquid storage pools connected in series, multiple reaction pools, a liquid channel making all the liquid storage pools communicated and a liquid channel making the liquid storage pools and the reaction pools communicated. The micro-fluidic chip is simple in structure and convenient to use, the pneumatic micro valves are utilized for making the liquid storage pools and the reaction pools independent, mutual pollution of liquid among the reaction pools is avoided, the precision of a sample amount is improved, and reliability of detection results is guaranteed.

The present application is directed to a method and apparatus for monitoring soil hydraulic properties, and for collecting soil pore-water samples, in relatively undisturbed soil conditions, by means of a vadose zone probe (10) adapted to be mounted on an inflatable sleeve (18) for installation in a borehole (14) formed in the vadose zone, said vadose zone probe comprises a fluid cell (15) having one or more conduits (13a, 13b, 13c) connected thereto for externally accessing its interior, and a porous medium (11) installed in, or formed on, one of its walls for allowing passage of liquid between the interior of said fluid cell and the borehole soil, wherein said vadose zone probe is made from an elongated body having a front (10f) and rear (10r) sides, and wherein said rear side is substantially flat and said front side is made from a deformable and permeable material, or having a curvature corresponding to the curvature of said borehole.

Apparatus and method are disclosed for detecting gas in return fluids. A semi-permeable interface is disposed on a tool sub, the semi-permeable interface being in communication with a fluid cell and with a return fluid in an annular region defined by an outside the tool sub and a borehole wall. A sensor responsive to a gas carried by the return fluid is disposed in the fluid cell to sense the gas that enters the fluid cell from the return fluid via the semi-permeable interface.

An apparatus for delivering a tool into a nuclear reactor jet pump submerged in a reactor pool includes a frame, and a propulsion unit for controlling the movement of the tool delivery apparatus within a pool of liquid. A guide assembly provides for delivery and insertion of the tool into an inlet of the jet pump and includes a bore insertion portion. A tool position driver provides for controlling the vertical position of the tool in relation to the guide assembly.

A method for preparing flow cytometer -micro carrier clinical diagnosis chip includes fixing different biological molecules on micro carrier then labeling them with fluorescence in different intensity to form a fluorescent gradient, using micro carrier-biological molecule to culture with sample and combining it with ligand, confirming micro carrier with different size and obtaining micro carrier in different diameter region when flow cytometer is on gravest, selecting micro carrier in different size and using its own fluorescence to compare with detection fluorescence for determining ligand to be tested, providing said chip for clinically diagnose infectivity disease, taraxy disease, autoimmune disease, etc..

A thermoelectric power generation type high-temperature drilling fluid cooling and circulating system comprises a refrigerating unit, a refrigerating unit pump, a first valve, a second valve, a cooling fluid loading box, a cooling fluid delivering pump, a heat exchanger, a steam-turbine generator, an electricity storage box, electric equipment, a condenser, a well, a drilling fluid pond, a first drilling fluid delivering pump and a second drilling fluid delivering pump; the first drilling fluid delivering pump is positioned between the well and the drilling fluid pond, and pumps the high-temperature drilling fluid upwards returning from the well to the drilling fluid pond; and the second drilling fluid delivering pump is positioned between the drilling fluid pond and the heat exchanger, and delivers the high-temperature drilling fluid to the heat exchanger. By the heat exchanger, the high-temperature drilling fluid and the cooling fluid are subjected to heat exchange, the exchanged cooling fluid becomes high-temperature and high-pressure gas which enters the steam-turbine generator to drive the generator to generate power, and the generated electric energy is stored in the electricity storage box and supplies power for the electric equipment. After the high-temperature drilling fluid becomes low-temperature drilling fluid by exchange through the heat exchanger, the low-temperature drilling fluid enters the well through a sixth pipeline.

The invention relates to an electroslag casting device additionally provided with electromagnetic stirring and a method thereof. The electroslag casting device belongs to the technical field of special steel electroslag metallurgy and comprises a crystallizer, a crystallizer water jacket and an electromagnetic stirrer; an annular magnet is sleeved on the outer wall of the crystallizer and positioned at the middle-upper part of the crystallizer, a loop is wound on an iron core of the annular magnet, an electromagnetic stirrer water jacket is arranged at the periphery of the annular electromagnet, and the electromagnetic stirrer water jacket is communicated with the crystallizer water jacket; a melting consumable electrode forms molten steel drops which then enter a slag layer; the molten steel drops fall down in a spiral line way in the slag layer under the action of the rotary electromagnetic field and then enter a steel ingot liquid tank; the steel ingot liquid tank raises continuously and also enters into an effective magnetic field action region of the electromagnetic stirrer; and meanwhile, electric current in the molten steel is acted with the rotary magnetic field to produce the electromagnetic force which then drives the molten steel to rotate. The invention has simple equipment, and has the obvious functions of improving the surface quality, the subsurface quality and the solidifying tissue of a casting blank and the isometric crystal ratio, and lightening the internal defects, such as the center segregation, the center looseness, and the like.

A method of determining springback in metal forming with a fluid cell press through establishing a computational formulation to determine bend angle and compensated die radius based on factors of geometry of the part being formed, material properties of the sheet material and the forming process, and computing additional iterations of springback until a specific tolerance between the formed part angle and the desired part angle are reached.

The invention discloses a ground-type tidal Irrigation system, which is used for irrigating potted plants with water or nutrient solution and comprises an upper water supply and drainage trench which is arranged at the upper part of a seedbed, a lower water supply and drainage pipeline which is arranged below the seedbed and is connected with the upper water supply and drainage trench, a water supply system and a water drainage system which are respectively connected with the lower water supply and drainage pipeline and a nutrient solution pond, and a comprehensive control system which are connected with the water supply system, the water drainage system and the nutrient solution pond. An ultraviolet ozone disinfection system and an electric floor heating system are additionally arranged in the system. The ground-type tidal Irrigation system can simulate tide rising and tide falling to irrigate the plants from roots, realizes the continuous cyclic use of the nutrient solution through the ultraviolet ozone disinfection system, reduces the spreading of soil-borne diseases and improves the production benefit of crops; good ground temperature can be provided for the growth and the irrigation of the crops in cold seasons and the situation that the crops grow slowly is avoided; and the comprehensive control system can realize the comprehensive control of the irrigation system, the disinfection system and the electric floor heating system to enable the application to be more convenient and faster.

The invention discloses an efficient desulfurization single-tower double-circulation system and method. The efficient desulfurization single-tower double-circulation system comprises a primary slurry pool in a desulfurization tower and a secondary slurry pool outside the desulfurization tower, and the two slurry pools are connected by virtue of a pipeline, so as to form a multiregion pH control double-circulation desulfurization system, wherein limestone slurry is supplemented from the secondary slurry pool to the primary slurry pool, and cypsum slurry is discharged from the primary slurry pool of the desulfurization tower. According to the efficient desulfurization single-tower double-circulation system, the region control can be performed on the pH of the two slurry pools, the slurry at different spraying layers is respectively supplied by the two slurry pools, the slurry with a high pH value is favorable for absorbing SO2, so that the desulphurization efficiency of a desulfurization system is more than 99%, and the slurry with a low pH value is favorable for sulfite oxidation and gypsum crystallization, so that the gypsum dehydration rate and the gypsum purity are increased.