55results about How to "Avoid or reduce the occurrence of" patented technology

The invention is a method for avoiding or reducing V-type defect of blue-green light emitting diode material which has in turn sapphire substrate, low-temperature grown GaN buffer layer, high-temperature grown n-GaN layer, InGa1-Yn / GaN multi-quantum trap layer, and p-Alx Ga1-xN / p-GaN layer, characterized in that: there is a grown n-AlxGa1-xN / GaN superlattice layer between the high-temperature grown n-GaN layer and InGa1-Yn / GaN multi-quantum trap layer, where 0<x<1, the growth temperature is between 1100deg.C and 1200deg.C, the pressure is 30Torr-100Torr, the AlxGa1-xN layer is 1nm-5nm thick, the GaN layer is 1nm-5nm thick, the periodicity is 5-10, the doping concentration is between 1*1016cm-3 and 1*1018cm-3; there is also a weak n-type doped GaN layer between the high-temperature grown n-GaN layer and InGa1-Yn / GaN multi-quantum trap layer, where the growth temperature is 1150 deg.C-1200 deg.C, the growth pressure is 30Torr-80Torr, and the thickness is 1m-50nm, the doping concentration is between 1*1016cm-3 and 5*1017cm-3. And it can avoid or reduce V-type defect and reverse leakage current generated by this.

The invention relates to the technical field of composite board manufacturing, and discloses a preparation technology for a light and high-strength jute fiber composite board and a production system.The preparation technology for the light and high-strength jute fiber composite board comprises the following steps of raw material preparing and preprocessing, metering matching, impurity removal mixing, combing, air laying, needling felt forming, vacuum peculiar smell processing and thermoplastic reinforcing; the production system of the preparation technology for the light and high-strength jute fiber composite board comprises a bale opener, a coarse opener, a dust removal system, a high-speed combing machine, an air laying machine, a pre-puncturing machine, a main puncturing machine, a vacuum peculiar smell removal machine, a drying oven, a six-channel continuous heating roller head machine and an automatic sorting sizing cutter which are sequentially arranged from input to output. Thelight, high-strength and high-environment-friendly performance of the jute fiber composite board is achieved.

A provided refining technology for molten medium-high carbon steel comprises: during the process that molten steel is subjected to tapping from a converter to a steel ladle, adding the first batch of a carburant into the molten steel to enable the carbon content of the molten steel to be 0.20%-0.30%; during cyclic vacuum degassing treatment of the molten steel, adding the second batch of the carburant into the molten steel for deoxidation; and then alloying the molten steel to enable the oxygen content, the carbon content and the alloy content of the molten steel to reach target values. The refining technology is capable of reducing viscosity of steel slag, avoiding or reducing generation of Al2O3 to improve molten steel cleanliness, improving the yielding rate of alloy elements as well as reducing metal oxide inclusions in the molten steel, and / or reducing treatment cost.

The invention provides a heat treatment system and method using superheated steam as a heat transfer carrier. The system comprises a steam boiler, a superheated steam generator and a heat treatment boiler, wherein the steam boiler generates saturated steam having the corresponding relationship of the temperature of 100 DEG C-200 DEG C and the pressure, the superheated steam generator heats the superheated steam with the temperature ranging from 100 DEG C to 200 DEG C to 200 DEG C-1,000 DEG C, the heat treatment boiler is inflated with the superheated steam with the temperature ranging from 200 DEG C to 1,000 DEG C, the inflated superheated steam serves as a heat transfer medium, the steam boiler and the superheated steam generator are both connected with the heat treatment boiler, and the steam boiler is connected with the superheated steam generator. According to the heat treatment system and method using superheated steam as the heat transfer carrier, the application range is enlarged. The saturated steam, the superheated steam and the heat treatment boiler are organically connected into a whole, the low-temperature superheated steam, the medium-temperature superheated steam and the high-temperature superheated steam can be produced, the application range is wide, the temperature rise is fast, and the temperature in the boiler is uniform; and through design of a cyclic recycling system, energy can be saved, and the emission load is reduced to the great extent.

The invention provides an aerosol generating product. The aerosol generating product comprises a bearing pipe, aerosol generating substance arranged in an inner cavity of the bearing pipe, and an antiseep layer at least arranged at one end of the bearing pipe, wherein the aerosol generating substance is configured to be heated by a heater to generate aerosol. The antiseep layer is arranged for theaerosol generating product, so that gas or liquid substance generated due to heating can not flow in from the aerosol generating product and pollute the heating cavity. Meanwhile, the antiseep layeris arranged at the end part of the aerosol generating product, so that the phenomenon that the solid substances including tobacco shreds fall off from the product and remain in the heating cavity is prevented, therefore, sediment or residue in the heating cavity is greatly reduced, then the impurities and foreign smell in aerosol are reduced, and the mouthfeel is improved. The cleaning frequency of the aerosol generating device is greatly reduced, and the maintenance cost is reduced. The invention further provides an aerosol generating system, which comprises the aerosol generating product andan aerosol generating device matched for use and used for providing energy for heating.

The invention discloses a low-temperature magnetic cooling erbium-based bulk amorphous material and belongs to the field of magnetic cooling alloys of functional materials. The low-temperature magnetic cooling erbium-based bulk amorphous material is characterized by comprising the following chemical components in percentage by atom: 55 to 65 percent of Er, 14 to 24 percent of Al and 18 to 28 percent of Co. The material can form bulk amorphous alloys under a common suction casting condition, has magnetic entropy change and magnetic cooling capability higher than those of metal Er, has a cost price lower than magnetic cooling materials such as Er-based crystalline and giant magnetic material Gd5Si2Ge2, of the same magnetic entropy change and magnetic cooling capability and is a high quality magnetic cooling material in a 2 to 50 K range.

The invention discloses an environment-friendly intelligent unloading system applied to a gravel material field. The environment-friendly intelligent unloading system applied to the gravel material field comprises a material receiving device, at least one material storing bin, a material conveying device, an atomizing device, a sound sensing device, a dust collecting device, a belt cleaning deviceand a controlling module, wherein the material conveying device comprises a conveyor belt, the atomizing device is automatically turned on or off under the control of the controlling module accordingto the suspended particle content of the unit volume of air in the air, the sound sensing device is used for recording generated audio when different materials pass through a material receiving hopper and analyzing the audio by the controlling device to determine the types of the materials, and the controlling device controls the material conveying device to convey the different materials into the different material storing bins according to the types of the determined materials. According to the environment-friendly intelligent unloading system, the intelligent controlling system is used fordistinguishing the types of the materials, meanwhile, the generation of dust is avoided or reduced as much as possible in the material unloading and conveying process, so that the whole system is safe and ordered, and the production efficiency can be improved.

The invention relates to the technical field of Cr-containing wastewater treatment, and discloses a magnetic Fe3O4 / biochar adsorbent so as to overcome the defects of a magnetic biochar material prepared by an existing traditional pyrolysis method; FeCl3.6H2O and FeCl2.4H2O are dispersed in an organic solvent, biochar and alkali liquor are added, the mixture is mixed and then placed in a microwave environment for a reaction, and after the reaction, a product is washed and dried to obtain the magnetic Fe3O4 / biochar adsorbent. According to the magnetic Fe3O4 / biochar adsorbent disclosed by the invention, a specific microwave environment is introduced into magnetic particles prepared by a chemical coprecipitation method, so that the magnetic particles are rapidly generated and loaded on the surface of biochar in situ, the generation of a byproduct ferric oxide is avoided or reduced, secondary modification of the biochar through the magnetic particles and microwaves is realized, the functional group structure on the surface of the biochar is enriched, and the removal performance of Cr in a water body is obviously improved.

The invention discloses a pharmaceutical preparation for avoiding or reducing generation of N-nitrosamine genotoxic substances, and belongs to the technical field of medicine. According to the invention, a suitable antioxidant is used in combination with effective components of a drug using or producing a substance or precursor substance that can degrade into N-nitrosamine genotoxic components during production and storage of active pharmaceutical ingredients or preparations, so that the generation of the N-nitrosamine genotoxic substances in the drug is effectively avoided or reduced; the drug safety is obviously improved.

The invention relates to the field of discharge electrode purification, and discloses a purification device and a refrigerator. The purification device comprises a discharge electrode structure and apower supply connected with the discharge electrode structure, wherein the discharge electrode structure comprises a first electrode, a second electrode and an insulating medium (3); and the insulating medium (3) is located between the first electrode and the second electrode, and the insulating medium (3) is of a porous structure. Through the technical scheme, the insulating medium arranged between the first electrode and the second electrode can optimize and improve discharge to a certain extent, thus line discharge between the first electrode and the second electrode is converted into surface discharge, the efficiency of decomposing organic matter is improved, the discharge voltage is relatively low, generation of ozone is avoided or reduced, secondary pollution of the ozone is reduced,and the electrodes and surrounding components are protected.

The invention provides a screen body structure, a display screen preparation method, a display device and a leveling device. The screen body preparation method includes the steps of arranging a protection coating on the surface of a screen body, wherein the surface is opposite to the surface, used for display, of the screen body; forming an exhaust pattern on the protection coating; arranging a buffer structure on the side, away from the screen body, of the protection coating. According to the method, by forming the exhaust pattern on the protection coating, the exhaust effect of the screen body can be improved, and the display screen quality can be improved.

The present invention discloses an antimony-based compound flame retardant for silicate fiberboard and a preparation method thereof, and belongs to the fields of material and chemical engineering. The antimony-based compound flame retardant comprises the following components by weight: 50-60 parts of antimony trioxide, 20-30 parts of calcium silicate, 4-10 parts of zinc borate, 3-10 parts of hydrotalcite and 3-5 parts of a modifier. The antimony-based compound flame retardant is prepared by the steps of antimony trioxide modification, raw material mixing and screening. The present invention employs antimony trioxide, zinc borate, hydrotalcite and modifier for the preparation of the compound flame retardant, and improves the refractoriness and processing property of the fireproof plate in reducing the amount of antimony. Meanwhile, the raw materials do not contain halogen or heavy metals such as lead and mercury, and do not produce harmful gases or waste in usage.

The invention relates to a wrapping paper indentation detecting device. The device is arranged on a bracket. A template is arranged at the bottom of the bracket and is provided with a sample model hole. A sample clamping plate is arranged above the template and is fixed by a nut. A paper sample to be detected is fixed between a clamping plate and the template. The indentation of the paper sample exactly faces the model hole. The clamping plate is provided with a through hole, and the through hole exactly faces the model hole. A positioning hole is arranged above the bracket. A pressure rod is inserted in the positioning hole. The lower end of the pressure rod exactly faces the through hole on the fixing plate. The upper end of the pressure rod is provided with a support plate. A weight is arranged on the support plate. By adopting the technical scheme, the paper sample to be detected is fixed between the clamping plate and the template, the pressure rod is pressed on the cutting mark of the paper sample, and then the instant and direct pressure detection can be carried out on the cutting mark by putting the weight on the support plate.

The invention discloses a novel cryo-scanning electron microscope sample table, which comprises a base, lower sample tubes and upper sample tubes, wherein a plurality of sample mounting grooves are formed in the base and vertically penetrate through the upper side surface and the lower side surface of the base; the lower sample tubes and the upper sample tubes are identical in size and matched innumber, the flat ends of the lower sample tubes and the flat ends of the upper sample tubes are in butt joint pairwise and then inserted into the sample mounting grooves, and the inner diameter of theupper ends of the sample mounting grooves is smaller than the outer diameter of the flat ends of the lower sample tubes; and the base is further provided with an adapter for transferring the base toa cooling table in a sample preparation cabin of a freezing transmission system and realizing fixation. The novel cryo-scanning electron microscope sample table is suitable for scanning electron microscope observation and analysis of various liquid, semi-liquid or foam samples, and has the advantages of simple structure and convenience in use and operation; the samples are directly in contact witha refrigerant, the freezing rate is high, and the generation of ice crystals is avoided or reduced; and a plurality of samples are simultaneously introduced, so that the working efficiency is high and the applicability is wide.

Provided is a method for manufacturing a three-dimensional object part by part and layer by layer. Energy beams perform selective scanning on corresponding powder materials layer by layer according to the cross section information, projected to powder layers, of a three-dimensional CAD model of the three-dimensional object, and the three-dimensional object is obtained finally. The method comprises the following steps that the three-dimensional object is cut into a part A and a part B, wherein the sectional area of the part A is S1, and the sectional area of the part B is S2; the part A is manufactured reversely in a layer-by-layer manufacturing mode; and the manufactured part A is put reversely, and the part B is manufactured on the section of the part A in a layer-by-layer manufacturing mode with the powder layers. The method can effectively avoid or reduce the possibility of overhung faces particularly in the manufacturing process of the metal three-dimensional object, thereby improving the precision of the three-dimensional object.

The invention discloses a feeding system applicable to super-large scale atomic layer deposition. The system comprises a silicon carrier and a first end cover flange and a second end cover flange which clamp the silicon carrier; the first end cover flange and the second end cover flange are connected into a whole through multiple shafts vertically penetrating through the first end cover flange andthe second end cover flange, and one ends of the shafts penetrate through the first end cover flange and are connected with the second end cover flange; the other ends of the shafts stretch out of the first end cover flange, a spring sleeves an extension part, shaft caps are arranged at the ends of protruding ends, and springs are limited at the protruding ends of the shafts. Accordingly, the silicon carrier serves as one part of an inner cavity, the deal load is greatly reduced, and transfer is light; meanwhile, the feeding system is heated directly, the heating rate can be obviously increased, the heating time is shortened, and the heat utilization rate is high.

The invention relates to a low-NOx and high-calorific value gas burner which comprises an inside throat inlet, an outside throat inlet, a main auxiliary combustion-supporting air channel, three stages of air supply functional components formed by an inside air nozzle, a middle air nozzle and an outside air nozzle, two stages of gas supply functional components formed by an inside gas spraying gun and an outside gas spraying gun and a front panel on which air supplying component mounting holes are reasonably distributed; forward spray orifices and lateral spray orifices are densely distributed on a head of a gas spraying gun; a mode that air and gas are uniformly distributed in pairs in two stages and in a misplacing manner respectively to supply gas to a main combustion region is adopted, so that uniform mixing of the gas and the air and rich combustion with ultra-low NOx generation quantity are facilitated; and by combining with a mode of supplying the gas toward the nearby of the cavity wall by adopting the third stage, a small part of gas which is not fully combusted in the main combustion region performs weak combustion which is beneficial to increasing the burnout degree of the gas in a region sufficient in combustion-supporting air, so that CO zero emission is realized, a high-calorific value gas boiler can be wholly ensured to reach a waste gas standard with low nitrogen and without CO emission, and basic guarantee is provided for application of high-calorific value gas to the gas boiler.

The invention discloses a big bearing-type stranded rope machine and an automation control technology thereof. The big bearing-type stranded rope machine mainly consists of a thread guide die holder, a ceramic thread guide die, frame flange bearings, frame flanges, a barrel, barrel big bearings, a base strip and a sand rack, wherein the ceramic thread guide die is arranged in the thread guide die holder; insulating materials are respectively arranged at the contact positions of the frame flange bearings at both ends of each frame flange and the sand rack and the contact positions of each barrel big bearing block, a safety hood support seat and the base strip, and moreover, 24V safety voltages are respectively accessed to the barrel big bearing blocks. When production is abnormal, a logical operation is performed through circuit control and a host shut-down command is sent out, and then, a main motor and the big bearing-type stranded rope machine stop working. The big bearing-type stranded rope machine disclosed by the invention is simple in control circuit, high in reliability and convenient in maintenance and can be used for avoiding or reducing waste products, therefore, the product quality is ensured.

The invention discloses an indoor unit of an air conditioner and the air conditioner. The indoor unit of the air conditioner comprises an air flue assembly, an air guide assembly and a sealing assembly, wherein an air flue is formed in the air flue assembly; the air flue assembly is provided with an air inlet and an air outlet, which communicate with the air flue; a heat exchanger is arranged in the air flue; the air guide assembly is positioned in the air flue; the air guide assembly is equipped with an air guide hole which communicates with the air inlet and the air outlet; the air guide assembly is rotatably connected to the air flue assembly, so that a gas flow direction from the air guide hole to the air outlet is changed; and the sealing assembly is arranged between the air guide assembly and the air flue assembly to seal the air flue between the air guide assembly and the air flue assembly. According to the technical scheme adopted by the invention, the sealing effect between the air flue assembly and the air guide assembly is good, so that air outlet efficiency is improved, and energy consumption is reduced.

The invention provides an air conditioner control method and device, an air conditioner and a computer readable storage medium. The method comprises the steps that a temperature of an indoor air cavity and relative humidity of the indoor air cavity of the air conditioner in an air mixing mode are obtained; a target condensation temperature corresponding to the relative humidity of the indoor air cavity is determined; and if the temperature of the indoor air cavity is smaller than the target condensation temperature, a compressor is controlled to operate at a reduced frequency and / or a fan of the air conditioner is controlled to operate at an higher speed, so that the temperature of the indoor air cavity is increased. According to the method, corresponding target condensation temperatures can be accurately determined according to the relative humidity of the different indoor air cavities, then the obtained temperature of the indoor air cavities is compared with the obtained target condensation temperature corresponding to the relative humidity, the operation frequency of the compressor and / or the rotating speed of the fan are / is accurately controlled according to the comparison result, then the temperature of the indoor air cavity is larger than the condensation temperature, so that generation of condensate water in the indoor air cavity is avoided or reduced, and meanwhile it can be guaranteed that the fresh air volume and the refrigeration effect are not affected.

The invention discloses a preparation method for modified reinforced hemp fibers, belonging to the technical field of hemp fiber preparation. The preparation method comprises the following process steps: step 1, water processing of hemp fibers; step 2, drying treatment of the washed hemp fibers; steps 3, preparation of a working solution: with water as a base solution and a JFC penetrant as an additive, preparing the penetrant working solution; step 4, pre-wetting of the hemp fibers with warm water; step 5, heat-preserved impregnation of the hemp fibers in the working solution; step 6, washingwith warm water; step 7, washing with cold water; and step 8, drying. The preparation method can effectively reduce harmful substances such as aldehydes and benzenes in the hemp fibers, so the modified reinforced hemp fibers prepared in the invention has good environmental protection performance; and a hemp fiber composite board made of the modified reinforced hemp fibers is high in the bonding strength of the hemp fibers and PPs and can maintain high strength under the condition of low density, so the hemp fiber composite board is allowed to have light weight.

The invention discloses a gas-liquid reaction method and a special device. During the reaction, a raw material liquid enters a tubular reactor from a raw material liquid inlet of the tubular reactor, and raw material gas is fully mixed with a reaction liquid or the raw material liquid at a mixed flow circulating pump inlet and subjected to a gas-liquid reaction in a circulating pipeline and the tubular reactor along the flow path; energy supplement is performed by the aid of a ripening reactor outer jacket at the initial stage of the reaction, and automatic energy supplement is set after the reaction system is stabilized; forced circulating reaction is adopted. The working performance is good, the yield is effectively increased, and byproducts are reduced or avoided.

The invention belongs to the technical field of fuel and more specifically relates to novel biomass granules. The novel biomass granules are prepared from the following substances in parts by weight:25-46 parts of wheat straw powder, 35-54 parts of soybean straw powder, 5-10 parts of birch branches and trunks, 5-10 parts of locust tree branches and trunks, 3-9 parts of zelkova serrata branches and trunks, 5-8 parts of castanopsis fargesii branches and trunks, 2-8 parts of oak branches and trunks, 5-10 parts of willow branches and trunks, 12-32 parts of anthracite, 20-30 parts of coal slime, 15-25 parts of animal fat, 5-15 parts of food garbage, 5-11 parts of sunflower straw powder, 20-30 parts of rice hull powder, 10-15 parts of chicken manure and 5-10 parts of peat.

The invention belongs to the technical field of fuels, and concretely relates to a biomass particle with a high combustion rate. The biomass particle comprises, by weight, 19-47 parts of peanut shellpowder, 33-55 parts of sesame straw powder, 5-10 parts of poplar tree branches and trunk, 5-10 parts of pagoda tree branches and trunk, 3-9 parts of Zelkova schneideriana branches and trunk, 5-8 partsof pine trunks, 2-8 parts of robur branches and trunk, 5-10 parts of willow branches and trunk, 12-32 parts of anthracite, 20-30 parts of slime, 15-25 parts of animal fats, 5-15 parts of food wastes,5-11 parts of sunflower stalk powder, 20-30 parts of rice husk powder, 10-15 parts of pig manure and 5-10 parts of peat.

A method of manufacturing three-dimensional objects layer by part. According to the cross-sectional information projected on the powder layer by the three-dimensional CAD model of the three-dimensional object, the energy beam performs selective scanning on the corresponding powder material layer by layer to finally obtain the three-dimensional object. The method comprises the following steps: dividing the three-dimensional object into a part A and a part B, wherein the section area of ​​the A section is S1, and the section area of ​​the B section is S2; the A is manufactured upside down by a layer-by-layer manufacturing method; the completed A section is manufactured Put it upside down, continue to use the method of powder layer-by-layer manufacturing, and implement the manufacture of part B on the cut surface of part A. The invention can effectively avoid or reduce the generation of overhanging surfaces in the process of manufacturing especially metal three-dimensional objects, and improve the precision of the three-dimensional objects.

A provided refining technology for molten medium-high carbon steel comprises: during the process that molten steel is subjected to tapping from a converter to a steel ladle, adding the first batch of a carburant into the molten steel to enable the carbon content of the molten steel to be 0.20%-0.30%; during cyclic vacuum degassing treatment of the molten steel, adding the second batch of the carburant into the molten steel for deoxidation; and then alloying the molten steel to enable the oxygen content, the carbon content and the alloy content of the molten steel to reach target values. The refining technology is capable of reducing viscosity of steel slag, avoiding or reducing generation of Al2O3 to improve molten steel cleanliness, improving the yielding rate of alloy elements as well as reducing metal oxide inclusions in the molten steel, and / or reducing treatment cost.

The invention discloses a riveting method and a riveting structure, and the riveting method comprises the steps: providing a plate which is provided with a first side and a second side opposite to the first side; a wall part is formed on the first side of the plate, and the two sides of the wall part are provided with concave areas; placing a fastener into the recessed area, and enabling the fastener to be adjacent to one side of the wall part; and acting force is applied to the wall part from the other side, not adjacent to the fastener, of the wall part, so that the wall part is deformed to at least partially wrap the fastener. According to the scheme, indentations can be prevented from being generated on the back surface of the plate.

The invention provides a method for preparing curved glass, comprising: providing flat glass and side glass, and coating a SiO on the sides to be bonded of the flat glass and side glass respectively 2 layer, so that the sides of the flat glass and side glass are flattened; the flattened flat glass and side glass are vacuum thermally bonded, and then CNC cutters are used to cut the bonded glass combination to Get the curved glass of the desired shape. In the present invention, before vacuum thermal bonding is carried out on the glass substrates used for preparing curved glass, a SiO 2 Layer, which can reduce the surface roughness of the glass substrate and improve its flatness, thereby avoiding or reducing the occurrence of air bubbles during bonding, and improving the bonding strength.

The invention discloses an anti gram-positive bacterium composition of anglerfish skin collagen peptide, and the anti gram-positive bacterium composition is prepared by compounding an anglerfish skin collagen peptide solution with a concentration of 100-200 mg / ml and a ceftiofur sodium solution with a concentration of 20 mug / mL according to a volume ratio of 3- 4:1. By combination use and collaborative effects of anglerfish skin collagen peptide and antibiotic ceftiofur sodium, the anti gram-positive bacterium composition has a better bacteria resistance and bacteriostasis activity on gram-positive bacterium, reduces the antibiotic dose, reduces drug residues, avoids or reduces the production of drug resistant strains, and improves the economic added value of anglerfish skin.