40results about How to "Increase lateral flow" patented technology

The present invention relates to the use of amphipathic polymers to enhance lateral flow and reagent mixing on assay devices. More specifically, the invention relates to use of an amphipathic polymer in assay methods including a device for determining the concentration of lipids in blood serum or plasma.

The invention discloses a non-groove rolling method for high speed wire rod roughing mill group and mainly solves rolling technical problem of the high speed wire rod roughing mill group. The non-groove rolling method comprises two pass non-groove rolling, four pass non-groove rolling or six pass non-groove rolling; the ratio of height and width of the rolling component is 0.90 to 1.58, reduction rate of pass is 15 percent to 45 percent, rolling temperature is 1000 celsius degree to 1100 celsius degree, the adaptation range of blank is 120*120mm to 180*180mm, and the absolute spread coefficient range is 0.25 to 0.45. The invention adopts a pass-free flat roller to replace a rough rolling pass roller of the prior art and realizes non-groove rolling of the high speed wire rod roughing mill group. The invention aims to provide the non-groove rolling method for the high speed wire rod roughing mill group adopting the flat roller to replace the rough pass roller, meanwhile, decreasing production cost, improving product quality and productivity of the mill and expanding the adaptation range of blank.

The invention provides an LED chip which comprises a substrate, a buffer layer, an N-type semiconductor layer, a light-emitting layer partially covering the N-type semiconductor layer, a P-type semiconductor layer formed on the light-emitting layer, a P electrode and an N electrode, wherein the buffer layer, the N-type semiconductor layer, the light-emitting layer and the P-type semiconductor layer are formed on the substrate in sequence; the region, uncovered by the light-emitting layer, of the N-type semiconductor layer is an N electrode installation region; the N electrode installation region is provided with a step; the step comprises a first step surface, a second step surface, the height of which is smaller than that of the first step surface, and a step side surface arranged between the first step surface and the second step surface; the P electrode is formed on the P-type semiconductor layer; and the N electrode is formed on the second step surface and is contacted with the step side surface. According to the LED chip, a step structure is formed in the N electrode installation region, and the N electrode is formed on the step structure, so that compared with a conventional same-side-electrode-structure LED chip, the LED chip in the invention, allowing the N electrode to be contacted with the side wall of the N-type semiconductor layer, enhances current transverse flow, improves current distribution uniformity and effectively improves LED chip light-emitting performance.

The present invention provides a double-sided cooling annular fuel rod with a wrapping wire. The annular fuel rod comprises an upper end plug, a lower end plug, an inner cladding, an outer cladding and an annular fuel pellet, wherein a cavity formed by nesting the inner cladding and the outer cladding is used is for accommodating the annular fuel pellet, the upper parts of the inner cladding and the outer cladding are connected with the upper end plug, and the lower parts of the inner cladding and the outer cladding are connected with the lower end plug; the outer surface of the outer claddingis wound with one or more wrapping wires, that is the wrapping wire(s) is / are spirally wound around the outer surface of the outer cladding; and the two ends of the wrapping wire(s) are respectivelyfixed to the upper end plug and the lower end plug. The wrapping wire(s) wound around the annular fuel rod can significantly enhance the lateral flow of a coolant and enhance the heat transfer effectof the fuel rod to the coolant, and turbulent flow of the coolant takes away a large amount of channel heat, so the temperature of the fuel rod is reduced, the DNBR (departure from nucleate boiling ratio) is improved, and the safety of the fuel rod is enhanced.

The invention provides an LED chip comprising a substrate, a buffer layer, an N-type semiconductor layer, a light-emitting layer that partially covers the N-type semiconductor layer, a P-type semiconductor layer and a conductive layer, wherein the above layers are formed on the substrate in turn. The region of the N-type semiconductor layer, which is not covered by the light-emitting layer, serves as an N electrode mounting region. The N electrode mounting region is provided with a step and the step is composed of a first step surface, a second step lower than the first step surface, and a step side surface positioned between the first step surface and the second step surface. The LED chip further comprises a P electrode and an N electrode. The P electrode is formed on the conductive layer. The N electrode is formed on the second step surface and is in contact with the step side surface. The N electrode mounting region of the LED chip is provided with the step structure, and an N electrode is formed on the step structure. Compared with a conventional LED chip with electrodes formed on the same side thereof, the N electrode is in contact with the sidewall of the N-type semiconductor layer, so that the current lateral flow is enhanced. The current distribution uniformity is improved. Meanwhile, the light emitting performance of the LED chip is effectively improved.

The invention relates to a continuous extrusion mold for a C-shaped slot row. The continuous extrusion mold for the C-shaped slot row comprises a front cover, a rear cover and a mold core, wherein the front cover and the rear cover are connected with each other in a closed manner to form a cavity; the mold core is arranged in the cavity; a circular channel is formed in the center of the front cover; a C-shaped mold cavity is formed in the center of the mold core; a rectangular channel is formed in the center of the rear cover; the circular channel, the C-shaped mold cavity and the rectangular channel are communicated with one another in sequence; taper angles are arranged at the outlets of the circular channel to increase the transverse flow of a material; an outer taper angle and an inner taper angle are arranged at the inlet and the outlet of the C-shaped mold cavity so as to effectively reduce the load of the middle part of the C-shaped slot row; a boss is additionally arranged on the rear cover of a cavity body, so that the middle part of the C-shaped slot row is effectively supported, the continuous extrusion of the C-shaped slot row is guaranteed, and the product quality is stable.

Provided herein are integrated devices that improve sensitivity of rapid diagnostic tests. The devices described herein integrate sample separation with rapid diagnostic tests and improve signal intensity of the rapid diagnostic tests.

The invention provides a fuel assembly of a light-water reactor. The fuel assembly comprises a plurality of fuel rods and a grid rack, wherein the grid rack is separated into a plurality of grid elements which are arrayed in a rectangular array; the fuel rods are respectively inserted into the corresponding grid elements and form a plurality of rows and a plurality of arrays in parallel; and at least parts of the fuel rods are arranged in a manner of being deviated from the centers of the corresponding grid elements, so that the distance between the centers of the two adjacent fuel rods in parts of the arrays of the fuel rods is greater than the distance between the centers of the two adjacent grid elements corresponding to the two adjacent fuel rods. According to the fuel assembly of the light-water reactor disclosed by the invention, the distance between the two adjacent fuel rods can be increased after the fuel rods are eccentric and the fuel rods have a trend to be crossly arrayed; the transverse flowing resistance is reduced and the transverse flow is enhanced and a disturbance effect of the transverse flow can be sufficiently expressed; and the heat exchanging capability of fluid is enhanced and the thermo-technical residual amount is increased.

The invention relates to a spraying plate, an MOCVD (Metal Organic Chemical Vapor Deposition) reaction system provided with the spraying plate and a use method of the MOCVD reaction system. The MOCVD reaction system comprises a heating substrate, the spraying plate, an MOCVD reaction cavity, a cooler and an extraction opening, a source reaction gas flow channel which is located in the middle of the width of the spraying plate and extends in the length direction of the spraying plate is formed in the spraying plate, and a plurality of source reaction gas spraying holes which extend downwards to the lower surface of the spraying plate are formed in the inner wall face of the source reaction gas flow channel. According to the application, the mixing uniformity of the metal organic source gas and the source reaction gas in the reaction cavity and the temperature uniformity of the spraying plate can be improved, so that the production quality of the superconducting tape is improved.

The invention discloses a turbulence roller. The turbulence roller comprises a roller core, the roller core is sleeved with multiple annular friction pieces detachably, a spacer sleeve is detachably installed between every two adjacent annular friction pieces, the roller core, the annular friction pieces and the spacer sleeves are arranged coaxially, multiple protruding strips are distributed on both surfaces of each annular friction piece, the protruding strips are arrayed in a radialized mode on the surfaces of each annular friction piece, and the protruding strips of the two opposite surfaces of every two adjacent annular friction pieces are arranged in a staggered mode. By means of the turbulence roller, turbulence which is small in size and high in intensity can be generated, large transverse flow does not occur, when the deviation of basis weight in cross direction of paper sheets is adjusted through dilution water, the range of transverse diffusion of the dilution water added at certain points can not be excessively large, so that accurate adjustment is achieved, the transverse array of fibers in the paper sheets can be increased, and therefore the tensile force difference between the longitudinal direction and the transverse direction can be decreased.

The invention discloses a device for producing hollow fiber membranes. The device comprises a support. A spinneret, a lower joint and an upper joint are arranged successively from bottom to top on the support. A membrane material liquid inlet is arranged on the upper joint, and a membrane core liquid inlet is arranged on the lower joint. The upper joint and the lower joint are sealed through seal rings, and a spinneret orifice is arranged on the spinneret. The device for producing hollow fiber membranes is characterized in that the spinneret is a rotary spinneret, and rotary bearings are arranged at connection positions of the rotary spinneret with the lower joint and the support. The device further comprises a power unit and a transmission unit. The power unit is arranged on the support and connected with the rotary spinneret through the transmission unit. The invention further comprises a method for producing hollow fiber membranes. The device for producing hollow fiber membranes can be used for producing hollow fiber membranes through an immersion precipitation phase process or a thermal induced phase separation process, the structure is simple, manual adjustment is not used, the quality and the stability of hollow fiber membranes are improved greatly.

A flue gas swirl strong mixing diversion filter board is used in a power station pulverized coal fired boiler at a grizzly screen for spraying ammonia of a flue gas selective catalyctic reduction (SCR) denitration device; the swirl strong mixing diversion filter board (4) are arranged along the outer surface of a metallic conduit (2) of the grizzly screen for spraying ammonia and is divided into an upper board and a lower board, the lengths of which are equal to or slightly longer than that of a spray pipe; the swirl strong mixing diversion filter board (4) installed on the metallic conduit (2) of the grizzly screen for spraying ammonia is close to an ammonia gas jet orifice (3) and forms the angle of 40-60 degrees, and the upper board and the lower board of the swirl strong mixing diversion filter board (4) are symmetrical and connected and supported with each other by a filter board support (5). The ammonia gas is gradually mixed with the flue gas in the process of flowing along the filter board (4) and gradually flows into flue gas flow field at rear along a round hole to be diverted by the round hole. The mixture of the ammonia gas and the flue gas form a great deal of swirl under the action of an ostiole of the filter board and the sawtooth edge of the filter board, and is rapidly mixed in the flow.

A tip filter with gate for cigarette is composed of a filtering fiber rod consisting of two segments, a cylindrical gate with one or more through holes between said two segments of filtering fiber rod, and packing paper. Said cylindrical gate made of wood or paper can change the flow state and route of smoke for filtering the harmful substances from smoke well.

The invention discloses a ten-gate holeless rod continuous rolling process, and belongs to a metal rolling process. The ten-gate holeless rod continuous rolling process is characterized in that hole rollers in previous ten gates of rod continuous rolling are replaced by flat rollers; hole rolling of rods in the previous ten gates is replaced by holeless rolling; holeless rolling in the previous ten gates is adopted to roll the rods; the rolling parameters are as follows: the rolling height-width ratio is 0.90-1.8; the reduction rate in each gate is 20%-60%; the rolling temperature is 950 DEG C-1100 DEG C; the height*width range of blanks is 150 mm*150 mm-165 mm*165 mm; the absolute broadsiding coefficient range is 0.18-0.45; holeless rolling of the rods in the previous ten gates is realized; the production cost is reduced; the product quality and the utilization rate of a rolling mill are improved; and the application range of the blanks is widened.

The invention discloses a blowing type water purifier which comprises an electric flocculation device, a negative electrode, a positive electrode, a plurality of ultrasonic probes, a filtering device, a water collecting barrel and a controller. The electric flocculation device comprises a shell of a hollow cylindrical structure, a water inlet is formed in one side of the shell, a water outlet is formed in the other side of the shell, a plurality of gas holes are formed in the shell and communicated with a gas source through a ventilating pipe, and an electromagnetic valve is arranged on the ventilating pipe. The negative electrode comprises a first metal pipe. The positive electrode comprises a second metal pipe and a plurality of flexible metal wires. The filtering device comprises a pipe body and a plurality of membrane wires. The controller is connected with the electromagnetic valve and the ultrasonic generator and used for controlling the ultrasonic generator to radiate ultrasonic waves into the shell for 10 minutes after controlling the gas source to supply gas into the shell for 30 seconds. Iron ions generated by the positive electrode can fully enter a water body and can be evenly dispersed into the water body.

The invention discloses a light emitting device inserted with a current homogenizing structure and a manufacturing method thereof. The light emitting device inserted with the current homogenizing structure comprises a first electrode layer, a p type degeneration semiconductor layer on the first electrode layer, an n type degeneration semiconductor layer on the p type degeneration semiconductor layer, a p type semiconductor layer on the n type degeneration semiconductor layer, an active layer on the p type semiconductor layer, an n type semiconductor layer on the active layer, and a second electrode layer on the n type semiconductor layer. By adopting the light emitting device, the current distribution uniformity during working of the semiconductor device can be improved effectively, the photo, electrical and thermal performance of the semiconductor device is improved, and the service life is prolonged.

The invention relates to the field of insulation board manufacturing, in particular to an additive formula for improving the performance of an insulation board, which comprises P.O525R ordinary Portland cement, graphite powder, glass beads, an organic silicon water repellent, a cement composite early strength agent, silica fume, water, ethylene-vinyl acetate copolymer emulsion, a polyether defoaming agent and a sodium gluconate retarder. The production method for improving the performance of the insulation board comprises the following steps: step 1, pretreating polystyrene foam particles by using phenolic aldehyde epoxy resin; step 2, preparing equipment; step 3, coating an inorganic cementing material on a substrate; and step 4, making the inorganic cementing material permeate the substrate. When the technical scheme is adopted, the strength index of the insulation board can be improved.

The invention relates to a large-area perovskite solar cell. The large-area perovskite solar cell comprises a conductive glass; a hole transport layer positioned on the conductive glass; a composite perovskite light absorption layer located on the hole transport layer; an electron transport layer located on the composite perovskite light absorption layer; a hole blocking layer located on the electron transport layer; and a counter electrode positioned on the hole blocking layer. According to the embodiment of the invention, the composite perovskite light absorption layer is arranged, the perovskite films made of different materials are arranged on the hole transport layer at intervals, and the transverse flow of the photon-generated carriers in the perovskite light absorption layer can bepromoted, so that the carriers in the perovskite film are uniformly distributed, the interface defects of the perovskite film are overcome, and the problems of poor continuity and uniformity of the perovskite film are improved, and accordingly the conversion efficiency of the solar energy is improved, and a foundation is laid for the preparation of the large-area perovskite film.

The present invention discloses one new kind of filter tip for cigarette, and belongs to the field of cigarette producing technology. Before the filter tip forming paper and the filtering fiber tow, one layer of high permeability filter paper with special channels is set. When the cigarette is smoked, negative pressure is formed in the channel area to filter partial smoke and form S-shaped smoke flow path in longer distance. The present invention has increased collision possibility between the harmful smoke components and the filtering fiber and effective interception of harmful matter. Compared with traditional filter tip, the present invention has raised tar-reducing and harm-decreasing effect.

The invention belongs to the technical field of reactor engineering, and concretely relates to a fuel assembly, and a lower tube seat and a bottom device thereof. The lower tube seat comprises a lowertube seat frame body, support legs arranged at the lower portion of the lower tube seat frame body, a plurality of equal-diameter through holes arranged in the upper end surface of the lower tube seat frame body in a crisscrossed parallel manner, a plugging hole for the lower end of a neutron flux tube, and plugging holes for the lower ends of guiding tubes; and the equal-diameter through holes are circular. The bottom device comprises the lower tube seat and a foreign body-resistant assembly connected thereto, and the lower tube seat is the lower tube seat in any claim of the description. The fuel assembly includes an upper tube seat, fuel rods, positioning grids, guiding tubes, an instrument tube and the bottom device; the fuel rods, the guiding tubes and the instrument tube are inserted into the positioning grids; the quantity of the positioning grids is more than one, and the positioning grids are sequentially arranged axially; the upper ends of the guiding tubes and the instrument tube are fixedly connected with the upper tube seat, and the lower ends of the guiding tubes and the instrument tube are fixedly connected with the bottom device; the bottom device further comprisesthe lower tube seat and the foreign body-resistant assembly; and the lower tube seat is the lower tube seat in any claim of the description.

The invention belongs to the technical field of reactor engineering, and concretely relates to a fuel assembly, and a bottom device and foreign body-resistant assembly thereof. The foreign body-resistant assembly comprises a foreign body-resistant screen frame body and a foreign body-resistant screen connected with the foreign body-resistant screen frame body, and the foreign body-resistant screenis provided with a plurality of filtering units; and the foreign body-resistant screen frame body is a square structure wholly, and four corners of the foreign body-resistant screen frame body are provided with grooves. The bottom device comprises a lower tube seat and the foreign body-resistant assembly connected thereto, and the foreign body-resistant assembly is the foreign body-resistant assembly in any claim of the description. The fuel assembly includes an upper tube seat, fuel rods, positioning grids, guiding tubes, an instrument tube and the bottom device; the fuel rods, the guiding tubes and an instrument tube are inserted into the positioning grids; the quantity of the positioning grids is more than one, and the positioning grids are sequentially arranged axially; the upper endsof the guiding tubes and the instrument tube are fixedly connected with the upper tube seat, and the lower ends of the guiding tubes and the instrument tube are fixedly connected with the bottom device; the bottom device further comprises a lower tube seat and the foreign body-resistant assembly; and the foreign body-resistant assembly is the foreign body-resistant assembly in any claim of the description.

The invention belongs to the technical field of reactor engineering, and concretely relates to a fuel assembly, a bottom device thereof, and a lower tube seat applied to the bottom device. The lower tube seat comprises a lower tube seat frame body, support legs arranged at the lower portion of the lower tube frame body, a plurality of equal-diameter through holes arranged in the upper end surfaceof the lower tube seat frame body in a crisscrossed parallel manner, a tap hole for the lower end of a neutron flux tube, and tap holes for the lower end of guiding tubes; and the equal-diameter through holes are circular. The bottom device comprises the lower tube seat and a foreign body-resistant assembly connected thereto. The fuel assembly includes an upper tube seat, fuel rods, positioning grids, the guiding tubes, an instrument tube and the bottom device; the fuel rods, the guiding tubes and the instrument tube are inserted into the positioning grids; the quantity of the positioning grids is more than one, and the positioning grids are sequentially arranged axially; the upper ends of the guiding tubes and the instrument tube are fixedly connected with the upper tube seat, and the lower ends of the guiding tubes and the instrument tube are fixedly connected with the bottom device; the bottom device is the bottom device in any claim of the description.

The invention relates to a friction plate carrier for a dual clutch assembly of a motor vehicle, which comprises a hollow cylindrical portion with a circumferentially meandering cylinder-shaped jacket. The bending part of the cylinder-shaped jacket is provided with teeth, namely radially and outwardly directed outer teeth for the engagement with the inner teeth of a set of inner friction plates on an radially outer clutch of the dual clutch assembly, and radially and inwardly directed inner teeth for the engagement with the outer teeth of the set of inner friction plates on the radially outer clutch of the dual clutch assembly. Tooth gaps directly adjacent to the teeth are arranged on both sides of the teeth. The teeth are composed of circumferentially adjacent inner tooth sets separated by the tooth gaps, and circumferentially adjacent outer tooth sets separated by the tooth gaps, wherein the numbers of the two tooth sets are the same. Each inner tooth set is composed of one or more circumferentially adjacent inner teeth. The tooth gaps of the inner teeth and the tooth gaps of the outer teeth radially do not overlap. The inner tooth sets and the outer tooth sets are arranged alternately in the circumferential direction and are adjacent to each other.

The present invention discloses one new kind of filter tip for cigarette, and belongs to the field of cigarette producing technology. Before the filter tip forming paper and the filtering fiber tow, one layer of high permeability filter paper with special channels is set. When the cigarette is smoked, negative pressure is formed in the channel area to filter partial smoke and form S-shaped smoke flow path in longer distance. The present invention has increased collision possibility between the harmful smoke components and the filtering fiber and effective interception of harmful matter. Compared with traditional filter tip, the present invention has raised tar-reducing and harm-decreasing effect.

The invention relates to a large-scale circulating fluid bed boiler with a buffering bed, and relates to a structural design of the circulating fluid bed boiler. The circulating fluid bed boiler provided by the invention is provided with two hearths which are adjacently arranged in parallel, the upper parts of two hearths are completely separated, and the lower parts of the two hearths are communicated through the buffering bed; the buffering bed consists of a buffering bed top, a buffering bed front wall and a material channel formed by front and rear walls of the buffering bed and a buffering bed grid plate, the buffering bed is formed by extending and expanding two-side hearths, the structure is simple, and the buffering bed is of a membrane wall structure; materials in the lower parts of the two-side hearths transversely flow through the buffering bed, the concentration distribution uniformity and the of the temperature distribution uniformity of the materials in the two-side hearths are improved; the upper parts of the hearths are completely separated, so that extended heating surfaces such as airfoil-shaped walls and the like are conveniently distributed in the hearths; the water cooled wall heating condition at the periphery of each hearth is coincident, the water power security of the boiler is improved. The bed pressure on the two-side hearths of the boiler is self-balancing through the buffering, a ' bed turning' phenomenon is basically eliminated, and the operational security of the boiler is improved.