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 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 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 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.

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 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 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.