25results about How to "Convenient amount" patented technology

The invention provides an intelligent photocuring 3D printing model optimization method, and relates to the technical field of photocuring 3D printing, and the method comprises the following steps: obtaining a 3D printing model file uploaded by a user; analyzing geometric information in the model file, and extracting a triangular grid structure, normal vector information and a surface area; key feature areas of curved surfaces, corners and edges in the model are identified, printing parameter data are collected, and a target model summary file is generated; an optimization printing target is defined, an optimization model is generated based on the generative adversarial network, model quality is evaluated through a discriminator network, a multi-target optimization result is analyzed, and an optimal balance point among different targets is found; and testing the optimized model and the printing parameters by using virtual reality, and performing self-adaptive correction according to a simulation test result to adjust to the optimal printing parameters. According to the method, the geometric features and the material attributes of the 3D model are automatically analyzed, potential weaknesses in the model are identified, and the 3D printing model is intelligently optimized.

The invention relates to a low-smoke halogen-free flame-retardant polyolefin insulation material for an in-vehicle high-voltage cable. The low-smoke halogen-free flame-retardant polyolefin insulation material comprises the following raw materials in parts by mass: 30-50 parts of SEBS, 30-50 parts of an ethylene-propylene-butylene block copolymer elastomer, 10-20 parts of a polyethylene grafted maleic anhydride compatilizer, 3-5 parts of color master batch, 1.5-2.5 parts of an antioxidant, 110-130 parts of aluminum hydroxide, 1.5-3 parts of phosphorus-containing silane, 1-2 parts of a cross-linking agent and 3-5 parts of silicone master batch. The SEBS is in the form of an unoil-filled particle; the aluminum hydroxide is powdery and is modified by phosphorus-containing silane; the cross-linking agent is a polyfunctional group cross-linking sensitizer, and the number of functional groups is not less than 2. The preparation method of the insulating material comprises the following steps: S1, modifying aluminum hydroxide powder by using phosphorus-containing silane; s2, uniformly mixing the matrix resin; s3, granulating by adopting a double-screw extruder with a large length-diameter ratio; s4, the materials obtained in the step S3, the materials obtained in the step S1 and other raw materials are subjected to banburying and double-stage production granulation, and a finished product is obtained.

The invention discloses a composition for relieving stress and fear of pets and application of the composition, and belongs to the technical field of animal nutritional health-care products, the composition for relieving stress and fear of pets comprises the following raw materials in percentage by weight: 0.1-20% of a relieving component, 1-20% of amino acid, 0.1-10% of an antioxidant and 55-90% of a functionalizing agent, and the sum of the weight percentages of all the raw materials is 100%; the invention further discloses a specific composition and proportion of the relieving component, and the composition for relieving stress and fear of the pets can be used for daily health care to prevent stress of the pets and can also be used before possible stress, such as transportation or before seeing a doctor.

The invention discloses a preparation method of calcite type calcium carbonate whiskers, which comprises the following steps: (1) preparing a calcium hydroxide suspension, and heating the calcium hydroxide suspension to obtain a hot calcium hydroxide suspension for later use; (2) adding a seed crystal and a crystal form control agent into the hot calcium hydroxide suspension, and uniformly stirring to obtain a hot mixed suspension; (3) continuously introducing carbon dioxide into the hot mixed suspension liquid for reaction until the reaction is finished, stopping introducing the carbon dioxide to obtain a calcium carbonate suspension liquid, filtering and drying to obtain calcium carbonate powder; and (4) calcining the calcium carbonate powder in a furnace, and crushing to obtain the calcite type calcium carbonate whisker. The calcium carbonate whisker prepared by the method is calcite type, and a new research thought is provided for preparation of the calcite type calcium carbonate whisker; the calcite calcium carbonate whisker prepared by the method is the most stable phase of calcium carbonate, and the application field of the calcium carbonate whisker is expanded.

The invention discloses a wastewater treatment device for the semiconductor industry, and belongs to the technical field of wastewater treatment.The wastewater treatment device for the semiconductor industry comprises a main body, a supporting frame is fixedly connected to the outer wall of the main body, a wastewater inlet pipe is fixedly connected to one side of the top of the main body, and a driving mechanism is installed on the inner wall of a storage cavity; a spraying mechanism is mounted at the top of the main body, a stirring mechanism is mounted on the outer wall of the driving mechanism, and a wastewater outlet pipe is fixedly connected to the outer wall of the main body. By designing the driving mechanism, the spraying mechanism and the stirring mechanism, wastewater and an adsorbent can be quickly mixed, the wastewater can be treated, meanwhile, the angle of stirring blades can be selected, the treatment rate can be increased in the wastewater treatment process of different methods, in addition, the spraying mechanism can move up and down along with stirring, and the treatment efficiency is improved. Therefore, the treatment efficiency is improved, and the method has wide application prospects in the field of wastewater treatment.

The invention provides a continuous fluid separation system for recovering lithium from mirabilite, and relates to the technical field of continuous fluid separation. A continuous fluid separation system for recovering lithium from mirabilite comprises a plurality of treatment subsystems, each treatment subsystem comprises an exchange area, a material washing area and an acid regeneration analysis area which are arranged in sequence, and each separation unit of the treatment subsystems is filled with a titanium adsorbent filler; the exchange area adopts a three-parallel two-serial feeding mode; gradient washing is carried out in a three-string mode in the material washing area; and the acid regeneration analysis area adopts a three-parallel analysis mode. According to the continuous fluid separation system for recovering lithium from mirabilite, the recovery rate of lithium can exceed 90%, continuous operation is achieved, product components and concentration are kept stable, and the use amount of washing water and an acid regenerant is greatly reduced.

The invention provides a preparation method of a hydrogenation catalyst and a method for preparing trimethyl hydroxyethyl propane diamine by using the catalyst. A carrier of the catalyst is a bimetallic oxide carrier, active components of the catalyst are Pd and Ni, and auxiliaries are selected from chromium, manganese, lithium, tin, iron and cerium. The catalyst can be used for preparing trimethyl hydroxyethyl propane diamine by taking N, N-dimethylaminopropionitrile, N-methylethanolamine and hydrogen as raw materials, and is high in activity, high in selectivity, stable in performance and long in service life. In addition, a new reaction route is adopted, ethylene oxide is not used, the risk of the process can be reduced, in addition, raw materials are cheap and easy to obtain, reaction conditions are mild, the product yield is high, the production cost is low, economical efficiency is good, and good industrial application prospects are achieved.

This invention relates to the field of traditional Chinese medicine (TCM) technology, and discloses a TCM composition for treating cachexia and its preparation method. The composition comprises five grains (a type of insect), Astragalus membranaceus, stir-fried Atractylodes macrocephala, Polygonatum sibiricum, Lycium barbarum, Ophiopogon japonicus, Citrus reticulata peel, Panax notoginseng, and Glycyrrhiza uralensis. Stir-fried Atractylodes macrocephala can be replaced with Poria cocos, Ophiopogon japonicus can be replaced with Polygonatum odoratum, and Citrus reticulata peel can be replaced with Amomum villosum. This formula is based on the principle of "strengthening the body's resistance, detoxifying and removing blood stasis," enhancing the effects of invigorating the spleen and stomach, promoting body fluid production and moistening dryness, while avoiding greasy and cloying substances that may hinder digestion. The preparation method involves cleaning, pulverizing, decocting, extracting, and drying the raw materials to obtain granules. This composition can be used to treat cachexia caused by various tumors such as lung cancer and liver cancer. Animal experiments have verified that it can significantly increase patients' food intake, improve cancer-related fatigue, inhibit tumor growth, alleviate muscle atrophy and splenomegaly, regulate blood routine, and improve anemia and immune function, providing a safe and effective option for the treatment of cachexia.

The present invention discloses a safety coating and its application, an electrode sheet and a lithium-ion battery, and relates to the technical field of secondary battery materials. By limiting the particle size of inorganic fillers in the safety coating, the grading of large and small particles is achieved, which can make the safety coating have a denser structure, thereby reducing the probability of contact between the positive and negative electrodes, thereby improving the safety performance of the battery core. At the same time, the amount of binder in the safety coating is optimized to promote the absorption of electrolyte by the safety coating, which can improve the rate performance, low-temperature discharge performance and cycle performance of the battery core. Finally, the present invention can improve the rate performance, low-temperature discharge performance and cycle performance of the battery core while improving the safety performance of the battery core by limiting the particle size of inorganic fillers and selecting binders.

This invention relates to a SCC mix design method and system based on the shear strength theory of cement paste. Its core lies in establishing a cement paste shear strength prediction model. This model quantitatively evaluates the shear strength of the cement paste under a proposed mix proportion and compares it with a pre-determined reasonable range. Then, through iterative adjustments to the cementitious material composition and water-cement ratio, the shear strength of the cement paste falls within the target range, thereby simultaneously optimizing the paste rheology and determining the final mix proportion. This invention achieves complete quantitative design from aggregate to paste, economically and efficiently preventing SCC segregation and maximizing the use of auxiliary cementitious materials to reduce the cost of self-compacting concrete.

The invention belongs to the technical field of nuclear fuel preparation, and discloses a coated particle dispersion fuel and a preparation method thereof.The preparation method comprises the steps that firstly, a powder atomic layer deposition device is started, inert gas is continuously introduced to remove gas in a reactor and a pipeline, and the powder atomic layer deposition device is prepared through the atomic layer deposition process; the method comprises the following steps: performing sintering aid coating deposition on silicon carbide powder in a fluidized state, including precursor adsorption, chemical reaction, inert gas purging and cyclic repetition until coating components and thickness reach the standard, depositing other types of sintering aids according to sintering aid component design requirements, performing coated particle dispersion fuel pellet forming, and performing densification sintering on the pellet, thereby obtaining the coated particle dispersion fuel pellet. The silicon carbide-based coated particle dispersion fuel is obtained; the coated particle dispersion fuel is prepared by the method. According to the preparation method, through SiC powder modification, the dosage of the sintering aid in the preparation process of the coated particle dispersion fuel is optimized.

The invention provides a preparation method and application of circular RNA, the ring opening rate of the circular RNA is reduced through preparation of the circular RNA, the loss of the circular RNA is reduced, meanwhile, the purity of a product is improved, and RNA molecules after in-vitro cyclization can be effectively transfected into cells. The invention also provides a preparation method and application of the circular RNA. In some embodiments, compared with existing RNA cyclization methods, the method provided by the invention has the advantages that the product purity is improved, and the ring opening efficiency is reduced.

The present invention discloses a preparation method and application of a black chicken peptide with a blood-enriching function, and belongs to the field of biomedical technology. The method comprises the following steps: (1) heat-treating the black chicken, and cutting the meat into minced meat with bones; the heat treatment is steam heat treatment, and the conditions of the steam heat treatment are: temperature 100-120°C, time 1-5 hours; (2) mixing the minced meat obtained in step (1) with water to obtain a liquid material, adding a mixed enzyme for enzymolysis, and obtaining an enzymolysis solution, wherein the mixed enzyme is a mixture of neutral protease and bromelain, and the mass ratio of neutral protease to bromelain is 0.1-10:0.01-10; (3) the enzymolysis solution obtained in step (2) is subjected to a post-processing process to obtain the black chicken peptide. The black chicken peptide product prepared by the present invention has the advantages of high oligopeptide content, light bitterness, astringency and saltiness, good antioxidant activity, high purity, and good blood-enriching effect.

The invention discloses a recycling method of wastewater containing benzene series pollutants, and belongs to the technical field of wastewater recycling treatment. The recycling method comprises the following steps: firstly, carrying out Fenton reaction on wastewater containing benzene series pollutants, a ferrous catalyst and an oxidizing agent to obtain a catalytic oxidation solution, adjusting the pH value of the catalytic oxidation solution to 6.5-7.0, adding a coagulant and a coagulant aid, and carrying out coagulating sedimentation treatment to obtain pretreated effluent; the pretreated effluent enters a biochemical unit for biochemical treatment, and biochemical effluent is obtained; the biochemical effluent is treated by a multi-medium filter, enters the ultrafiltration system for ultrafiltration after meeting the water inlet requirement of the ultrafiltration system, then is filtered by a security filter and enters a reverse osmosis device, the effluent and concentrated water are separated, the obtained water is used as a water resource, and the obtained concentrated water is returned to the homogenizing tank. The method is low in energy consumption, high in efficiency and clear in unit division of labor, has the advantages of simple process, low operation cost, low sludge yield, wide application range and the like, and can remarkably improve the biodegradability of the wastewater and reduce the toxicity of the wastewater.

The invention relates to a cleaning method of a solar cell texturing cleaning tank and a texturing method, and belongs to the technical field of solar cell manufacturing. The cleaning solution of the solar cell texturing cleaning tank is composed of the following raw materials in percentage by weight: 0.3%-0.5% of NaOH, 0.5%-1% of hydrogen peroxide, 0.3%-0.6% of a cleaning additive and the balance of a pure water solvent. The cleaning solution of the solar cell texturing cleaning tank comprises the cleaning additive, and the cleaning additive can assist in reducing consumption of sodium hydroxide and hydrogen peroxide and can also effectively remove inorganic particles and organic stains on the surface of a silicon wafer, so that the cost of chemicals and the danger in the using process are greatly reduced, and the service life of the solar cell texturing cleaning tank is prolonged. And meanwhile, an ideal cleaning effect can be achieved after cleaning of the cleaning tank.

This utility model belongs to the field of pharmaceutical storage technology, specifically relating to a leak-proof aluminum phosphide tablet sealing device, including an installation tray and a storage cylinder, as well as a rotating block and a placement rack. The placement rack has multiple placement slots, and a first sealing layer is fixed to both ends of each placement slot. A push plate is slidably installed at one end of each placement slot. Adjacent push plates are provided with matching grooves and protrusions. The placement slot has a groove that matches the side wall protrusion of the push plate, and a second sealing layer is provided on the side wall groove of the placement slot. Adjacent push plates are connected together through the cooperation of the top protrusion and the matching groove. When the user pushes the push plate, the push plate above the pushed push plate is pushed and moved by the push plate, realizing the batch pushing of tablets by the push plate, improving the efficiency of the user in taking tablets. By setting the first and second sealing layers, the sealing performance of the placement slot is guaranteed.

The present invention belongs to the technical field of gypsum building materials, and in particular discloses a lightweight gypsum self-leveling mortar with high volume and low shrinkage. The lightweight gypsum self-leveling mortar with high volume and low shrinkage improves the water-to-material ratio of the gypsum self-leveling mortar from 0.3 to 0.5 in the prior art to 0.6 to 1.35 by optimizing the amount of water reducing agent, optimizing the viscosity and amount of water retaining agent, thereby reducing the material consumption of the gypsum self-leveling mortar from 12.5 kg to 16 kg to 6 kg to 10 kg per square meter when constructing a 1 cm thickness, greatly improving its volume, and greatly reducing the shrinkage; and under such a high water consumption, the product still does not have water seepage and stratification. It not only solves the problem of hollowing and cracking that may be caused by existing products in the later stage, but also solves the problem that products prepared by adding lightweight aggregates are prone to stratification and water seepage and lack of strength on the surface during construction on the construction site, and balances the comprehensive performance requirements of the gypsum self-leveling mortar such as light weight, high volume, and no water seepage in actual construction, and significantly reduces the material cost.

The invention relates to the field of sewage treatment, and discloses a method for treating wastewater. The method comprises the following steps: carrying out contact reaction on wastewater, ferric salt and a betaine compound to obtain a turbid liquid; contacting the turbid liquid with a flocculating agent for reaction; wherein in the wastewater, the content of organic phosphorus in terms of phosphorus is 0.5-3 mg / L. The method provided by the invention can effectively improve the removal effect of organic phosphorus in the wastewater. Under the preferable condition, the method provided by the invention can synchronously, efficiently and economically remove phosphorus in the wastewater and reduce the hardness, the reaction pH is low, the phosphorus removal and hardness removal effects are good, the dosage of chemicals is small, and the cost is lower. Besides, the method is especially suitable for treating circulating water sewage, double-membrane backwashing water and the like containing the organic phosphorus scale inhibitor, has good phosphorus removal (especially organic phosphorus) and hardness removal effects, and can realize the technical effects of low agent dosage and low reaction pH.

The utility model relates to the technical field of molds, in particular to a plastic package mold. According to the technical scheme, the mold comprises an upper mold body, a lower mold body and a maintenance plate, a plastic packaging cavity is formed in the lower mold body, heating plates are fixedly installed on the two sides of the plastic packaging cavity, second electric push rods are installed in the positions, at the bottom of the plastic packaging cavity, of the lower mold body, cooling pieces are installed at the tops of the second electric push rods, and circulating water pipes are arranged in the cooling pieces; first electric push rods are fixedly installed on the two sides of the lower mold, upper molds are installed on the inner sides of the first electric push rods through connecting frames, liquid level sensors are fixedly installed on the tops in the upper molds, and a control table is fixedly installed on one side of the top of each upper mold. In the process of adding the plastic packaging liquid, the quantity of the plastic packaging liquid in the plastic packaging cavity is detected through the liquid level sensor and is displayed through the console, so that a worker can conveniently control the quantity of the plastic packaging liquid, meanwhile, the overflow condition can be avoided, and the use process is optimized.

The invention relates to the technical field of engineering metering, in particular to a highway subgrade receiver collaborative metering system based on a live-action three-dimensional model, and the system comprises a data collection module which is used for the data collection of multi-source equipment, so as to obtain subgrade basic data; the data preprocessing module carries out standardization processing on the roadbed basic data to obtain preprocessed data; the live-action three-dimensional model generation module generates a roadbed model through an SfM algorithm and an MVS algorithm; the metering platform performs feature extraction on the roadbed model to obtain point location engineering quantity metering data, length engineering quantity metering data and area engineering quantity metering data; and the report module is used for acquiring data of the metering platform to generate a project quantity report. According to the highway subgrade receiver collaborative metering system based on the live-action three-dimensional model, point location, linearity and area engineering quantity metering can be integrated, and the problems that a traditional metering method is low in precision and low in efficiency are solved.

The invention relates to the technical field of biological medicine, in particular to a mouse neutrophil magnetic bead sorting product and application. The invention provides a product for mouse neutrophil negative sorting and a corresponding sorting method. The sorted product can be used for sorting bone marrow, spleen and peripheral blood neutrophil. The sorting steps are simple, the time is short, and the sorted neutrophil is high in purity and good in activity and has a relatively good application prospect.

The invention relates to a polyacrylamide-based organic / inorganic hybrid nano-material, a fireproof pre-reaction solution and a preparation method and application thereof, the polyacrylamide-based organic / inorganic hybrid nano-material comprises polyacrylamide-based organic / inorganic composite latex particles, the latex particles comprise a flexible core layer, a functional shell layer and a reinforcing transition layer, and the flexible core layer is composed of a flexible core layer, a functional shell layer and a reinforcing transition layer. The reinforcing transition layer is arranged between the flexible core layer and the functional shell layer; the flexible core layer is polyacrylamide latex particles, the reinforcing transition layer is a polymer layer which has a cross-linked network structure and contains a melamino-formaldehyde material, and the functional shell layer is a polymer layer containing a phosphorus-containing polymer and a silicon-containing polymer. The fireproof pre-reaction liquid has the characteristics of low viscosity and capability of forming an interpenetrating network structure with cellulose, and can be coated on the surface of a transparent cellulose modified soda-lime glass product to form a fireproof layer, meanwhile, the low-temperature use temperature can reach-25 DEG C + / -1 DEG C, and the ultraviolet irradiation resistance time of the coating is more than 2000 hours.

The application discloses a device and a method for recovering sulfur by hydrogen sulfide thermal catalytic cracking, belongs to the technical field of hydrogen sulfide catalytic cracking, and comprises successively connected gas inlet devices, hollow reaction tubes, condensers and sulfur collecting devices. The hollow reaction tubes are arranged in heating furnaces, heat preservation structures are arranged outside connecting pipelines of the hollow reaction tubes and the condensers, inverted catalyst placing tubes are arranged in the hollow reaction tubes, a plurality of through holes are formed in the bottom of each catalyst placing tube and are communicated with the upper space of the hollow reaction tube, different catalysts are respectively filled in the inside of each catalyst placing tube and the upper space of the hollow reaction tube. The application can realize controllable bed layer height of the catalyst, controllable proportion of the two kinds of catalysts and space separation, effectively recovers the sulfur, avoids the occurrence of sulfur blockage, and simultaneously improves the hydrogen sulfide reaction conversion rate and the total sulfur recovery rate.

This invention discloses a high-efficiency dehydration device for dihydroxyanthraquinone, comprising a reaction vessel, a control box fixedly mounted on one side of the reaction vessel, a motor fixedly mounted on the top of the reaction vessel, a stirring rod fixedly mounted at the output end of the motor, and an addition mechanism for convenient quantitative addition of materials at the top of the reaction vessel. The addition mechanism includes a storage component, an electronic scale, a support plate, a collection box, an injection pipe, and a first solenoid valve. In use, the storage component pours dry-based sulfonic acid resin into the collection box, while the electronic scale weighs the resin until the desired weight is reached. At this point, the first solenoid valve opens, allowing the dry-based sulfonic acid resin in the collection box to be injected into the reaction vessel through the injection pipe. This utilizes the dry-based sulfonic acid resin to absorb moisture, thereby reducing the amount of sulfuric acid used and further reducing the amount of acidic wastewater, thus saving resources. Simultaneously, the electronic scale allows for convenient control of the amount of dry-based sulfonic acid resin added.

This invention discloses a Z-Scheme type composite photocatalytic material and its preparation method. Specifically, a series of Cu2O / rGO / BiOBr composite materials were successfully prepared using a two-step method, and the amount of Cu2O in the composite material was optimized by photoreduction of Cr(VI) under visible light irradiation. By transferring and separating electrons and charges among Cu2O, rGO, and BiOBr, the light energy utilization rate and photogenerated electron-hole separation efficiency are improved, thereby enhancing the photocatalytic efficiency.