124results about How to "Performance tuning" patented technology

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The catalyst has the characteristics of simple and practical preparation method, flexible and adjustable polymerization activity and the like, and the non-metallocene compound in the catalyst and the chemical treatment agent have synergy beneficial to giving play to activity. The invention also relatesto an application of the supported non-metallocene catalyst in olefin homopolymerization/copolymerization. Compared with the prior art, the catalyst is characterized in that the dosage of the promoter is less in the application.

The invention relates to a supported non-metallocene catalyst and its preparation method. The supported non-metallocene catalyst is characterized by simple preparation method, flexible polymerization activity etc. In addition, non-metallocene complexes in the catalyst cooperate with the chemical disposal agent to enhance the activity. The invention also relates to the application of the supportednon-metallocene catalyst in alkene homopolymerization/copolymerization. Less amount of co-catalyst is required in use compared with the prior art.

The invention relates to a load type non-metallocene catalyst and a preparation method thereof. The load type non-metallocene catalyst has the characteristics of simple preparation method, flexible and adjustable polymerization activity and the like, and synergistic reaction which is beneficial to activity development is formed between non-metallocene complexes and chemical conditioning agents inthe catalyst. The invention also relates to the application of the load type non-metallocene catalyst in olefin homopolymerization/copolymerization. Compared with the prior art, the application has the characteristic of less cocatalyst amount.

The invention relates to a loaded non-metallocene catalyst and a preparation method and application thereof. The loaded non-metallocene catalyst has the characteristics of simple and practicable preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the loaded non-metallocene catalyst to the homopolymerisation/copolymerization of olefin. Compared with the prior art, the application has the characteristic of small using amount of a cocatalyst.

The invention relates to a loaded non-metallocene catalyst and a preparation method and application thereof. The loaded non-metallocene catalyst has the characteristics of simple and practicable preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the loaded non-metallocene catalyst to the homopolymerisation/copolymerization of olefin. Compared with the prior art, the application has the characteristic of small using amount of a cocatalyst.

The invention discloses a method for extracting concepts in a Chinese electronic medical record based on deep learning. The method comprises the followings steps of: training context distributed characteristics of target words by utilizing a deep architecture of a multi-layer sparse autocoder, then, combining the context distributed characteristics with entity characteristics having advanced concept meanings, namely, marking characteristics and part of speech to form whole characteristics, inputting the whole characteristics in a deep belief network to perform model training, comparing the marking characteristics of samples to perform residual calculation, and optimally adjusting the performance of the whole deep architecture through supervised fine-adjustment. According to the method disclosed by the invention, the feature that the characteristics are deeply optimized by the deep learning is sufficiently utilized; simultaneously, the entity characteristics are added and used as prior knowledge; and thus, the classification and prediction accuracy can be increased while dependence on artificial characteristics is reduced.

The invention relates to a shape memory polymer pipeline and use of the shape memory polymer pipeline as an aircraft engine intake, in particular to a shape memory polymer pipeline and use thereof, which solve the problem that a structure of the conventional aircraft engine intake cannot be deformed according to requirements, so air inflow cannot be regulated and the shape of the air intake cannot be changed to cause that the through capacity of the aircraft engine intake is discordant with the requirement of an engine to influence the aerodynamics performance of an air engine. The shape memory polymer pipeline is made of a shape memory composition material, and the shape memory composition material consists of 5 to 98 volume parts of shape memory polymer materials, 2 to 95 volume parts of reinforcement phase materials and 0 to 100 volume parts of resistance heating materials; and the shape memory polymer pipeline serving as the aircraft engine intake overcomes the defect that the structure of the conventional air intake cannot be deformed according to the requirements, and regulates the air inflow and changes the shape of the air intake, so that the through capacity of the air intake is in accordance with the requirement of the engine to improve the aerodynamics performance of aircrafts.

The invention discloses a high biomass content epoxy resin composition. The high biomass content epoxy resin composition comprises, by mass, 100 parts of epoxidized plant oil, 1 to 100 parts of unsaturated bio-based dicarboxylic acid, 1 to 10 parts of a curing accelerator 1, and 1 to 10 parts of a radical initiator; wherein the curing accelerator 1 is tetrabutylammonium bromide, triphenylphosphine, 2-methylimidazole, 2,4,6-tris(dimethylaminomethyl)phenol, or boron trifluoride, and the radical initiator is a peroxy curing agent or an azo curing agent. The invention also discloses a curing method and applications of the high biomass content epoxy resin composition. The high biomass content epoxy resin composition is capable of improving material mechanical properties greatly; the main raw materials come from biomass renewable resources, are both green and nontoxic, and possesses certain positive functions in alleviating oil crisis and reducing carbon dioxide release; damage on human body is reduced, environmental pollution is reduced, and it is beneficial for industrialized application and especially application in the field of paint.

The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of processing the supported non-metallocene catalyst by a chemical treatment agent and precipitating a mixed slurry of a magnesium compound, a porous carrier and a solvent, performing in-situ loading on a non-metallocene ligand and directly drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation/copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.

The invention relates to an acrylic acid non-aqueous dispersoid containing amino ester bonds and siloxy groups and a preparation method thereof. The non-aqueous dispersoid consists of a dispersion stabilizer, a dispersion phase and a dispersion medium; based on solids, the dispersion stabilizer and the dispersion phase accounts for 50 to 80 weight percent of the non-aqueous dispersoid, wherein the weight ratio of the dispersion stabilizer and the dispersion phase is 1:3-10; the weight-average molecular weight of the non-aqueous dispersoid is 20,000 to 30,000; the dispersion stabilizer is polyurethane modified acrylic polymer, and has the weight-average molecular weight of 10,000 to 15,000; the dispersion phase is gelled grafted siloxane acrylic polymer, and the siloxane monomer accounts for 0.5 to 5 weight percent; and aliphatic hydrocarbon solvents at least accounts for 80 weight percent of the dispersion medium. After the non-aqueous dispersoid is used as a hydroxyl component to be prepared into a double-component polyurethane coating, the double-component polyurethane coating has the tolerance for solvents, chemicals, water, acids and alkalis superior to that of a coating prepared from a common polyhydroxy acrylic acid non-aqueous dispersoid.

The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of processing the supported non-metallocene catalyst by a chemical treatment agent and precipitating a magnesium compound solution formed by a magnesium compound, alcohol and a solvent, performing in-situ loading on a non-metallocene ligand and directly drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation/copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.

The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of processing the supported non-metallocene catalyst by a chemical treatment agent and precipitating a magnesium compound solution formed by a magnesium compound, alcohol and a solvent, loading a non-metallocene complex and directly drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation/copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.

The invention relates to a transparent polypropylene and a preparation method thereof. The transparent polypropylene is prepared from the following raw materials by weight: 100 parts of co-polypropylene, 0.2 to 0.3 part of an anti-oxidant, 0.1 to 0.2 part of a halogen absorbent, 0.1 to 0.3 part of a nucleating agent, 5 to 15 parts of a toughening agent and 1 to 10 parts of a peroxide master batch. The preparation method comprises the following steps: with the co-polypropylene, the anti-oxidant, the halogen absorbent, the nucleating agent and the toughening agent as main materials, adding the main materials into a main material feeding hopper of a double-screw extruder; with the peroxide master batch as an accessory material, adding the accessory material into an accessory material feeding hopper of the double-screw extruder; and subjecting all the raw materials to extrusion and granulation by the double-screw extruder so as to obtain the transparent polypropylene. The transparent polypropylene has excellent toughness and shock resistance; different processing characteristics can be obtained by flexibly adjusting the melt flow rate of the materials; so the transparent polypropylene is applicable to production of injection molded products with different wall thickness.

The invention discloses a viscoelastic surfactant for high-temperature self-diverting acid. The structural formula of the viscoelastic surfactant is as shown in the specification, wherein n refers tosaturated alkane with 2-8 carbon atoms, R1 refers to saturated or unsaturated alkane with 18-28 carbon atoms, R2 and R3 refer to independent methyl, ethyl and hydrogen atoms and can be the same or different, and X refers to optional one of Cl<->, Br<->, F<->, CO3<2->, SO4<2->, HCOO<-> and CH3COO<->. The preparation method includes subjecting aliphatic acid and organic amine to acid and amine condensation reaction to obtain an intermediate product, subjecting the intermediate product to reaction with metallic oxide to obtain aliphatic amine, adding in acid solution to perform protonation, so asto obtain the very-long viscoelastic cation surfactant. The invention further provides the application of using the surfactant as a thickening diverter of self-diverting acid. The self-diverting acidutilizing the surfactant as the thickening diverter can be used at the temperature of 150 DEG C, and has the advantages of stable structure, thickened acid, uniform acidification, automatic divertingand the like.

The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of employing a magnesium compound, a porous carrier and a solvent to form a mixed slurry, adding a non-metallocene complex for a contact reaction and then adding a precipitating agent for completely precipitating, filtering, washing and drying, and then treating by a chemical treatment agent. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation/copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.

The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of reacting a magnesium compound and an IVB group chemical treating agent under the existence of alcohol, and reacting with a non-metallocene complex, and directly drying finally. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation/copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, narrow molecular weight distribution, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.

The invention provides an electrical equipment monitoring method and a monitoring device thereof. The electrical equipment monitoring method comprises the following steps of: initializing; setting parameters; establishing an electrical business analysis model; controlling output power of a fan by grades; acquiring measuring point information of power transformation equipment in real time; and transmitting the acquired measuring point information of the power transformation equipment to a real-time database to be packaged and stored; and transmitting inquiry, accounting, analysis and/or processing operation requests to the electrical equipment monitoring device according to the request of a user; and displaying to the user in real time after visualized processing. The electrical equipment monitoring method is real-time and effective; the equipment is high in integration level and availability, good in expansibility, and stable in system performance, as well as simple and convenient to operate.

The invention discloses a parallel CFD calculation and communication overlap optimization method based on a supercomputer, which comprises the following steps: firstly, dividing the discrete flow field grid into a plurality of flow field regions with balanced computational load by domain decomposition; and secondly, dividing the discrete flow field grid into a plurality of flow field regions withbalanced computational load. Using the data parallelism strategy of single program and multiple data, each node in the cluster computes an approximate numerical solution of one of the flow fields. Inthe calculation process, according to the different positions of the flow field grids in the flow field region, the flow field grids are divided into two types: pure internal grids and boundary grids.The neighboring flow field regions located at different nodes need to exchange the flow field values of the boundary grids through the interconnected network. Secondly, the parallelism of computationand communication process is recognized by analyzing the read-write dependence of the flow field values in parallel CFD algorithm. Finally, the computation and communication flow of the parallel CFDprogram is adjusted, the parallel CFD program is overlapped with the communication program, and the performance of the parallel CFD program is tuned by the performance analysis tool TAU (Tuning and Analysis Utilities).

The application discloses a performance analysis method, system and equipment for a non-structured distributed storage system. The method comprises the following steps: acquiring monitoring data monitored by a monitor running on a server side, wherein monitors running on different servers are subjected to a time synchronization operation before starting; acquiring performance data of a client; andassociating the performance data with the monitoring data on the same time axis, and analyzing the associated performance data and monitoring data in order to generate a corresponding performance analysis result. According to the performance analysis method disclosed by the invention, the acquired performance data and monitoring data are associated on the same reference time axis, so that deeperperformance analysis and rating of the non-structured distributed storage system are realized, an; a developer is assisted in finding and determining a potential optimizing point in order to realize the performance optimization of the non-structured distributed storage system.

The invention relates to application of sclerotium rolfsii scleroglucan fermentation broth as an oil field drilling fluid treatment agent. The sclerotium rolfsii scleroglucan fermentation broth can be used in a stratum environment with a temperature of less than 130 DEG C, a mineralization degree of less than 20000 mg/L, and a pH value in a range of 1-12, overcomes adverse factors that current biopolymer products are poor in temperature resistance and easy to be influenced by the mineralization degree and the pH value of stratum, and is wider in application range, and stronger in capacity of resisting harsh stratum conditions.