30results about How to "No flooding" patented technology

The invention relates to a hemofiltration sample pad. According to a preparation mode, a certain proportion of human erythrocyte antibodies, trihydroxymethyl aminomethane, casein, polyvinylpyrrolidone, surfactants and the like are prepared into a treatment solution according to different product properties in accordance with different sequences; the prepared solution is subjected to pH regulation so as to form a final treatment solution; the prepared treatment solution is uniformly processed on glass fiber and is put into a 37-DEG C drying box to be dried for 8 to 24 hours. The hemofiltration sample pad prepared by the method has the advantages that the whole blood sample is separated under the condition of not influencing the sample running board; a fast diagnosis reagent subjected to sample feeding has clean background without phenomena such as blood residue traces, flooding, line whitening or rail lines.

The invention relates to a catalytic electrode of a proton exchange membrane fuel cell, a cell provided with the same and a preparation method thereof. The catalytic electrode comprises a conductive carrier layer with a net-shaped structure, and a proton conductive monomer and a catalyst which are located on the surface of the conductive carrier layer and in the net-shaped structure; the thickness of the conductive carrier layer is 1-10 microns; the cell provided with the catalytic electrode adopts the catalytic electrode to replace a cathode catalyst layer; the preparation method comprises the following steps of: S1, manufacturing the conductive carrier layer; S2, supporting a catalyst; S3, supporting the proton conductive monomer; and S4, transferring the conductive carrier layer. Almost catalysts, the proton conductive monomer and a pore can form an effective three-phase interface and the utilization efficiency of the catalyst is greatly improved; a water flooding phenomenon caused by the fact that the thickness smaller than 1 micron does not occur and a phenomenon that the conductive property is decreased, caused by the fact that the thickness is more than 10 microns also does not occur; the fuel cell adopting the catalyst can keep relatively long service life in a frequent starting-stopping automobile application environment.

The invention discloses a slurry pipeline transportation system involved in a method for moving mountains and reclaiming land from the sea through wave energy, belongs to the pipeline transportation field of wave energy pure collection and hybrid transfer and particularly relates to a slurry pipeline transportation method and device with pressure seawater serving as power and seawater mixed slurry serving as continuous media. The device comprises a land slurry pipeline transportation mechanism, a sea-level slurry pipeline transportation mechanism, a seafloor slurry pipeline transportation mechanism and a suspended slurry pipeline transportation mechanism. The relevant pipeline transportation mechanisms are connected as required, slurry is jetted from a destination system through the combined action of a pressure seawater manufacturing system, a slurry mixing field system and the slurry pipeline transportation system, soil is deposited, sea water drops away, and the land is formed. According to the slurry pipeline transportation system through opening and closing of an out-degree valve of a three-direction joint structure built on the coast, or through rotation and switching of a rotor of a valve concrete body installed on the seafloor, alternate operation or simultaneous operation is performed on a slurry jetting hull of a bay or a sea island, and therefore the slurry jetting hull can conveniently move when the operation is stopped.

The invention aims to provide a novel tap with convenient use and good air tightness, which comprises a shell and a through pipe, wherein the shell is in a cylindrical shape of which the upper end is opened; both sides of the upper part of the shell are provided with notches; the lower end of the shell is provided with an outlet; the inside of the shell comprises a middle shell and an inner shell; the middle shell is in a cylindrical shape of which the lower end is opened; both sides of the middle shell are provided with notches; the inner shell is in a conical shape with an opened upper end and a gradually narrowed lower end; both sides of the upper end of the inner shell are fixedly provided with two wings; the lower part of the inner shell is provided with an elastic plastic cover; andthe elastic plastic cover is in a conical shape of which the upper end is opened. The elastic plastic cover has elasticity; and when the two wings deviate from initial positions, the plastic cover plays a role of restoring the two wings, the plastic cover does not cut off water flow but not air flow at the moment of blocking the outlet, the phenomenon of air flow backward cannot be generated, andliquid in storage equipment is ensured not to contact air. The novel tap is simple in structure and low in cost, and achieves the aims of convenient use and good air tightness.

The invention discloses a particle dispensing device for PIV based internal flow field measurement of a ventilated cavity. A cavitator in the dispensing device includes an enclosed casing, ventilation holes are formed in the lateral side of the cativator, an air inlet pipe connected to the cativator is communicated with an internal cavity, the internal of the cativator includes a particle caching pipe, the lateral side of the particle caching pipe also includes ventilation holes, an air inlet connecting piece connected to the particle caching pipe is communicated with the cavity, the cavity is formed between the external surface of the particle caching pipe and the internal surface of the cativator, an external pipeline is connected with a particle storage pipe, particles are supplemented timely via two control valves and an air source, and thus, the particles can be dispensed continuously and uniformly. The particle dispensing device can be used for researches on ventilation cavitation of different appearances, and provides convenience for measurement and application of a PIV system.

The invention discloses a digital control system for all plant units in a nuclear power station and a non-nuclear-grade digital control system and method. The non-nuclear-grade digital control system of each unit comprises a first automatic control subsystem and a first operation monitoring subsystem which are in communication connection; the non-nuclear-grade digital control system in the public supply part comprises a second automatic control subsystem; the first automatic control subsystem comprises a plant bus; information exchange between the second automatic control subsystem and the first automatic control subsystem, as well as between the second automatic control subsystem and the first operation monitoring subsystem, is achieved through the plant bus; and the first automatic control subsystem further comprises a network isolating filter module and is used for forwarding a network message to a station related with a physical address according to the physical address in the network message and preventing the network message from being broadcasted to a unit network irrelevant to the physical address. By implementing the technical scheme of the invention, the high efficiency and the stability of network exchange are guaranteed.

A hydroponic vegetable ecological breeding mechanism, which relates to the technical field of vegetable cultivation, includes a platform, a fish pond, a hydroponic breeding box, and a fish tank. A number of hydroponic culture boxes and fish tanks are arranged between them, and the hydroponic culture boxes and the fish tanks are arranged at intervals. The bottom of the fish tank is a funnel-shaped structure, and a vertical pipe is arranged at the bottom of the funnel-shaped structure. The two ends of the connecting pipe are respectively connected with the bottom of the adjacent hydroponic culture box on both sides. There is a vegetable planting plate in the hydroponic culture box. There are vegetable planting holes on the vegetable planting plate, and a flow pump is also provided on the connecting pipe. The hydroponic culture boxes arranged at intervals and the fish tanks are connected end to end to form a closed loop in series through connecting pipes. The invention provides a hydroponic vegetable ecological breeding mechanism, which does not need manual fertilization, can closely combine fish farming and vegetable farming, and implements automatic monitoring and management.

A pull-up circuit for an IO circuit, comprising: an access control module and a pull-up module, connected in series between an IO port and an IO power supply; a switch module, which generates an access control signal according to an IO port signal and a first interface signal, when the IO When the port is input or floating, the voltage value of the IO port signal is equal to the first interface signal, and the access control signal is greater than or equal to the difference between the IO port signal and the preset threshold voltage; the access control module is controlled by the access control signal and the second interface signal When it is turned off or turned on, the voltage value of the second interface signal is equal to the larger one of the voltage value of the IO power supply and the voltage value of the IO port signal. Through the technical scheme of the present invention, when the signal voltage value of the IO port is greater than the voltage value of the IO power supply, it can effectively prevent the current from flowing backward from the IO port to the IO power supply; when the IO port is floating, it is easier to satisfy the potential at the IO port can be pulled up to always be greater than the minimum IO logic output high voltage requirement.