106results about How to "Has a blocking effect" patented technology

The invention relates to a low-toxicity or nontoxic multi-functional drilling fluid finishing agent used for the drilling operation of an oil-gas field. The invention has no pollution to the environment, is nontoxic and has the functions of preventing collapse, blocking, lowering the water loss, protecting the wall of a well, protecting an oil-gas layer, generating no fluorescence and the like. The invention has the following technical scheme of: firstly, putting water into a reaction tank, adding a dispersant MV-CMC and a glue protection agent JT888 slowly in circulation, adding an emulsifying agent OP-10 once after dissolving, circulating for 10 minutes, adding liquid paraffin slowly and then emulsifying for 30 minutes; then, adding a defoaming agent YHP-008 and then circulating for 5-10 minutes continuously; and finally, adding 36% of formaldehyde as a preservative and then circulating for 5 minutes so as to obtain a product of the low-toxicity or nontoxic multi-functional drillingfluid finishing agent. The finishing agent is used for water-base drilling fluid, especially polymer drilling fluid, can effectively improve the quality of a mud cake of the water-base drilling fluid, lowers the water loss, has the functions of clamping prevention, lubrication, collapse prevention, blockage and the like, has no pollution to the environment and can be widely used in the drilling operation.

The invention belongs to the field of molecular biology, and relates to a hybridoma cell strain capable of secreting a CPIV3 antibody and an ELISA kit. A caprine parainfluenza virus 3 CPIV3 immunogen used in the invention is a CPIV3 JS2013 viral strain isolated clinically, and a hybridoma cell strain 2E6 is screened from an established hybridoma cell bank capable of secreting the CPIV3 antibody. The monoclonal antibody secreted by the hybridoma cell strain has the blocking effect, and is applied to the CPIV3 blocking ELISA kit. The CPIV3 blocking ELISA kit can specifically detect the antibody generated after the CPIV3 infection or caprine immunization. 212 caprine clinical serum samples are colleted, and the CPIV3 antibody in the serum is tested by the established blocking ELISA method and a neutralization test. Through the comparison between the result of the blocking ELISA method and the result of the neutralization test, the coincidence rate is 98.8%.

The invention discloses a light-emitting diode epitaxial wafer and a growth method thereof, and belongs to the technical field of semiconductors. The light-emitting diode epitaxial wafer comprises a sapphire substrate, a low-temperature buffer layer, a high-temperature buffer layer, an N-type layer, a defect blocking layer, an active layer, an electron blocking layer and a P-type layer, wherein the defect blocking layer comprises a first sub-layer and a second sub-layer; the first sub-layer comprises first AlGaN layers and GaN layers which are alternately stacked; the second sub-layer comprises second AlGaN layers and third AlGaN layers which are alternately stacked; the Al content in the first AlGaN layers gradually changes along the growth direction of the light-emitting diode epitaxial wafer; and the Al content in the second AlGaN layers and the Al content in the third AlGaN layers remain unchanged, are different and are smaller than that in the first AlGaN layers. The light-emitting diode epitaxial wafer has a blocking effect on extension of defects.

The invention relates to a building block for forming a wall structure. A plurality of similar building blocks are alternately superposed continuously in the wall. The building block is a longitudinal section material and comprises a top surface, a bottom surface and two end surfaces; the cross section of the building block is integrally in a downward horn mouth shape; the middle part of the top surface has a ridge, and two sides of the top surface are low, thereby forming a left supporting slope and a right supporting slope; the building block has the shape and the size, thus when three similar building blocks are superposed from top to bottom, the ridge of the undermost building block is higher than the base part of the topmost building block; the lower part of each supporting slope is provided with a shoulder table which comprises an upper table surface, a table bottom surface and a transverse lateral surface; the upper table surface, the upper slope and the middle ridge form the top surface; and when the building block is superposed with the upper similar building blocks to form the wall, protrusions formed by slopes at two sides are bonded with horn notches on the bottom surfaces of the upper similar building blocks. The invention can prevent water leakage of any surface of the formed wall, simultaneously enables the wall to have stable shock resistance, and is suitable for various buildings and various construction methods.

The invention relates to a processing and storing method of rhizoma gastrodiae decoction pieces, and belongs to the fields of processing and storage of traditional Chinese medicines. The processing and storing method comprises the following steps: (1) weighing raw materials, washing the raw materials to be clean, and carrying out draining; (2) preparing extracting solutions of fructus schisandrae,Chinese wolfberry fruits, radix astragali, radix codonopsis and poria cocos, and carrying out filtering for later use; (3) carrying out pre-freezing; (4) carrying out slicing; (5) spraying the extracting solutions of fructus schisandrae, Chinese wolfberry fruits, radix astragali, radix codonopsis and poria cocos; (6) spraying a protection agent; (7) carrying out microwave vacuum freeze drying; (8) carrying out packaging; and (9) carrying out storage. The processing and storing method of the rhizoma gastrodiae decoction pieces is simple, and pollution-free and environmentally friendly, energyconsumption is saved, for the rhizoma gastrodiae decoction pieces processed through the method, sulphur fumigation is not adopted in the whole course of processing, thus the defects of sulphur fumigation adopted in the prior art are overcome, and the prepared rhizoma gastrodiae decoction pieces have stronger efficacies and better health effects.

The invention relates to cement capable of slowing setting by additives. The cement comprises at least one first microcapsule and at least one second microcapsule; the first microcapsule has a hollowstructure, the interior of the first microcapsule is provided with a first additive, and the first microcapsule is put in the cement; the interior of the first microcapsule is provided with at least one second microcapsule, and the interior of the second microcapsule is filled by a second additive; and the first microcapsule and the second microcapsule can be slightly exploded by energization of ahigh-frequency coil, after the second microcapsule is slightly exploded, the first additive and the second additive are mixed, and after the first microcapsule is slightly exploded, the mixed additive and the cement is mixed. According to the concrete disclosed by the invention, the high-frequency coil generates a magnetic field after being energized, the first microcapsule and the second microcapsule can be prepared by mixing high-molecular organic matter and metal particles, when the metal particles generate an eddy flow in the magnetic field, the second microcapsule and the first microcapsule are slightly exploded in sequence, and after the mixed material and the cement are mixed, setting time of the cement is delayed; and the concrete is convenient to use.

The invention discloses a circulating sprinkling irrigation apparatus with a rainwater collecting function for the greening of a light roof, which relates to the technical field of light roof greening. The circulating sprinkling irrigation apparatus specifically comprises a first collecting box and a supporting frame, wherein a second collecting box is arranged at the right side of the first collecting box; a slide block is arranged in a slide chute; the supporting frame is fixedly welded on the upper ends of the first collecting box and the second collecting box respectively; a driving mechanism is fixedly installed on the side wall of the supporting frame; fixing blocks are respectively fixedly welded inside the first collecting box and the second collecting box; water pumps are installed at the inner tail ends of the first collecting box and the second collecting box; and the output ends of the water pipes are connected with water collecting pipes in an injection molding manner. Thecirculating sprinkling irrigation apparatus with the rainwater collecting function for the greening of the light roof has a filtering effect for the rainwater entering the water pipes because the surface of a water inlet pipe is hollowed out, so that the situation that larger impurities in the rainwater block the inside of the connecting pipe can be avoided, and the conveying efficiency of the connecting pipe is prevented from being influenced.

The invention discloses a building smashing device. The building smashing device comprises a smashing chamber, a sieve plate device, sieve holes, a driving shaft and a smashing device body; the sieve plate device is fixed to the inner wall of the smashing chamber and located in the center; the smashing device body is fixed to the surface of the driving shaft; pressing blocks are slidably connected to the tops of sieve plate bodies; and arc-shaped ejector rods are rotationally connected into the sieve plate bodies, the top ends of the arc-shaped ejector rods are hinged to the bottom ends of the pressing blocks, and flapping devices are arranged in the sieve plate bodies and located at the positions of the sieve holes. According to the building smashing device, the purposes of preventing blockage and removing dust are achieved, wet dust adhesion is reduced, the blockage condition is avoided, the smashing efficiency is high, meanwhile, dust can be collected, dust diffusion is reduced, the dust suction amount of workers is reduced, human health is facilitated, air pollution is reduced, and the use performance is improved.

The invention discloses a cadmium telluride thin film solar cell module and a preparation method thereof. The cadmium telluride thin film solar cell module comprises a substrate glass layer, a TCO thin film layer, a CdS thin film layer, a CdTe thin film layer, a diffusion barrier layer, a Mo electrode layer, and a backplane glass layer which are arranged in order from bottom to top. The diffusionbarrier layer is a TiN layer. A TiN thin film is used as a back electrode buffer layer instead of Cu. Since the work function of the TiN is 4.7eV and the work function can be deepened by adjusting theratio of Ti to N, the Schottky barrier of the metal back electrode and the cadmium telluride thin film can be reduced, and the contact between the metal back electrode and the cadmium telluride thinfilm can be optimized. In addition, the TiN layer has good stability and has a stopping effect on Na diffusion in the glass, so that the diffusion of the alkali metal Na in the cadmium telluride thinfilm cell is controllable, and is different from the diffusion of doped copper which may diffuse to an interface between the cadmium telluride and the cadmium sulfide in a late stage, destroys a p-n junction characteristics, and greatly reduces efficiency, thereby prolonging a service life.

The invention provides a multi-chamber rotational-flow stepped high-efficiency heat exchanging system of a rotary pyrolyzing furnace. The multi-chamber rotational-flow stepped high-efficiency heat exchanging system comprises a heating chamber, wherein the heating chamber is divided by a separation plate into two or more heating chambers, the bottoms of two adjacent heating chambers are provided with a hot gas outlet communicating the two heating chambers, and a plurality of fins arranged in an annular shape are arranged in the heating chamber. By adopting the multi-chamber rotational-flow stepped high-efficiency heat exchanging system, the heating process is processed in a sectional manner by virtue of various chambers on the basis of external heating way, so that the remaining time and route of the heated gas in the chamber can be manually increased, the heated gas performs sufficiently heat exchange with a tube wall wraping biomass, the stable and sufficient heating is realized, and the utilization rate of energy is increased.

The invention discloses a hydraulic cylinder with a gap dynamic sealing piston. The hydraulic cylinder comprises a cylinder body, a piston, a piston rod, a guide sleeve and a cylinder cover; a grooveset which is arranged along the circumferential direction of the piston is arranged on the outer circumferential surface of the piston, the groove set comprises a plurality of concave grooves which are uniformly distributed in the circumferential direction, the inner concave groove comprises an oil groove and a V-shaped conical surface, the oil groove is located in the middle of the inner concavegroove, the length trend of the oil groove is arranged in the circumferential direction of the piston, the V-shaped conical surface is symmetrically arranged on the front conical surface and the rearconical surface in a front-back symmetry manner relative to the oil groove, the top ends of the front conical surface and the rear conical surface are connected with the outer circumferential surfaceof the piston respectively , the bottom ends of the front conical surface and the rear conical surface are connected with the top ends of the ledges of the oil groove respectively, the top end of thefront conical surface or the top end of the rear conical surface is not connected with the front end surface of the piston, and the top end of the rear conical surface or the top end of the front conical surface is not connected with the rear end surface of the piston. According to the hydraulic cylinder with the gap dynamic sealing piston, liquid lubrication between the piston and the cylinder body can be ensured, and the phenomena of piston jammed and piston scraping are avoided on the premise of effectively reducing internal leakage of the piston.

The invention relates to the field of spinning equipment, and specifically discloses a fabric disinfecting device. The device comprises a rack, an air box, a disinfecting table rotatably connected tothe rack, and a motor, wherein a piston is arranged in the air box; a crank is fixedly connected to an output shaft of the motor; the crank and the piston form a crank sliding block mechanism; an airpipe is fixed to the bottom of the piston, and the air pipe comprises an inlet section, a throat channel and an expanding section which are sequentially arranged from top to bottom; a sleeve which sleeves the air pipe is fixedly arranged in the air box; the air pipe is provided with an air inlet which is communicated with the inlet section; an air guide hole which is communicated with the air inlet is formed in the sleeve; a liquid groove is formed in the piston and is communicated with the throat channel through a guide pipe; a valve is arranged at the end part, in the throat channel, of theguide pipe; a pressure detecting device for controlling the valve to open and close is arranged at the throat part; a spiral groove is formed in the periphery of the lower part of the air pipe; a driving ring which is fixed to the disinfecting platform is arranged above the disinfecting platform; a spiral convex edge which fits the spiral groove is arranged on the driving ring. The device is capable of timely dewatering a fabric after disinfecting.