216results about How to "Enhance aggregation ability" patented technology

To provide: a process in which a coarse gel itself is made not to form in the case of applying the aqueous solution polymerization; and a process in which the polymerization is mildly controlled and the production is stably carried out in the case of applying the reversed-phase suspension polymerization or static polymerization, in a production of a water-absorbent resin. In a production process for a water-absorbent resin, which comprises a polymerization step that includes the steps of carrying out polymerization, involving crosslinking, of an aqueous solution of a water-soluble unsaturated monomer including acrylic acid(salt);and at the same time carrying out fine division of the resultant hydrogel, or in a production process for a water-absorbent resin, which comprises the steps of carrying out polymerization, involving crosslinking, of an aqueous solution of a water-soluble unsaturated monomer including acrylic acid(salt);and carrying out fine division of the resultant hydrogel, or in a production process for a water-absorbent resin, which comprises a polymerization step that includes the steps of carrying out polymerization, involving crosslinking, of an aqueous solution of a water-soluble unsaturated monomer including acrylic acid(salt); and at the same time obtaining a finely divided hydrogel, the water-soluble unsaturated monomer is adjusted in order to contain furfural in an amount of 11 to 1,000 weight ppm (relative to the monomer).

The invention discloses a method and a system for controlling data storage in a cluster file system and a method for creating a file. The cluster file system stores files by grouping storage nodes. The method for data storage comprises the following steps of: collecting and measuring binary load information containing I/O access load space utilization rate of each storage node in the cluster file system during interval period; measuring whether the load of the cluster file system is balanced or not according to the binary load information of each storage node; and migrating data of in cluster file system if the load of the cluster file system is not balanced.

The invention discloses a file reading system and a method of a distributed file system. The system comprises a memory server end and a plurality of client ends, and the server end comprises a pre-reading descriptor table module and a reading request processing module, wherein the pre-reading descriptor table module is for buffering the pre-reading descriptors for a plurality of front-end loads from the client ends and buffering all the information of the pre-reading descriptors by a table structure; the reading request processing module is for acquiring the information of the front-end loads, searching the pre-reading descriptors in the buffered descriptor table using the information of the front-end loads, acquiring the address of the pre-reading descriptors and accomplishing the reading operation on objective files. The invention can enhance the converging performance of a plurality of the client end processes to read the identical file at the same time.

A method in a computer system executing a client application and an OODBMS and an RDBMS software, which system has a storage medium accessible by the RDBMS software and the OODBMS software being accessible by the client application. The method generates unique object identifiers in a data abstraction layer disposed between the OODBMS and the RDBMS software in response to a parent thread created by the client application. The method includes the steps of creating a child thread that has access to the RDBMS software, which child thread is used exclusively for generating object identifier numbers and for returning the same to the parent thread. A unique object identifier table is created, which is maintained by the child thread. In response to a request by the parent thread for a unique object identifier, the child thread generates a finite number of the unique object identifiers and communicates their values to the parent thread. After this, a recording is made in the table of the fact that a finite number of unique object identifiers have been generated.

The invention relates to a method for preparing dimeric acid methyl ester by using Brphinsted-Lewis double-acid ionic liquid to catalyze unsaturated fatty acid methyl ester dimer. The method is characterized in that the Brphinsted-Lewis double-acid ionic liquid consisting of alkyl sulfonic acid functionalized pyridine cations or alkyl sulfonic acid functionalized 1,3-dialkylimidazolinium cations or alkyl sulfonic acid functionalized quaternary ammonium cations and inorganic anions of Lewis acid is used as a catalyst; and under the protection of nitrogen, the Brphinsted-Lewis double-acid ionic liquid catalyzes a fatty acid methyl ester polymerization reaction for 2 to 8 hours at the reaction temperature of between 220 and 280 DEG C to prepare the dimeric acid methyl ester. Compared with the prior art, the method has the following advantages: 1, the method has higher polymerization capacity, does not need to pressurize, and has short reaction time; 2, a dimeric acid methyl ester product and the ionic liquid catalyst are not miscible and are layered automatically, and the separation process is easier; and 3, the catalyst has stable ionic liquid performance, and can be recycled.

The invention discloses a fluorine-containing macro-molecule emulsifying agent which is a comb-type random copolymer which consists of hydrophobic fluorine-containing monomers and hydrophilicity monomers; in the invention, conventional radical polymerization is adopted for obtaining the fluorine-containing macro-molecule emulsifying agent, the requirements of reaction conditions and devices are low and the reaction monomers are easily obtained, thus overcoming the disadvantages that methods such as active polymerization, and the like, are carried out under highly-demanding conditions in the prior art, and the cost is high. The reaction of the invention has rapid speed, and the conversion percent is high; at present, the conventional radical polymerization with low cost is still one of the simplest and most convenient methods in the point of industrialized production and production cost reduction, therefore, the fluorine-containing macro-molecule emulsifying agent is easy for industrial application.

The method comprises: according to the configuration data to be configured and all related module, generating data configuration message and the rollback instruction message; sending the data configuration message to its corresponding module; waiting the response message from each module; if receiving a response message of successfully configuring data from all modules, then the current data is successfully configured; otherwise, sending the rollback instruction to its corresponding module in order to restore each module to the state before configuration. The invention also reveals an apparatus thereof comprising: data configuration message generating module and data configuration scheduling module.

The invention discloses a data consistency cloud auditing system and an implementation method. The data consistency cloud auditing system comprises a cloud view management subsystem and a distributed auditing subsystem, and is characterized in that the cloud view management subsystem and the distributed auditing subsystem perform data interaction through a protocol interaction module. The implementation method comprises the steps that each service bearing network element acquires original data files according to format specification requirements; the distributed auditing subsystem starts data comparison of corresponding auditing service/network element in a time mode according to configuration dispatching information, completes difference data analysis and reports a result of data comparison and difference analysis to the cloud view management subsystem; and the cloud view management subsystem sends a synchronous cleaning operation request to the distributed auditing subsystem so as to implement and feed back a difference data cleaning result. The data consistency cloud auditing system disclosed by the invention is flexible in use, high in resource utilization rate and high in information aggregation ability while ensuring the service data consistency among the network elements through the above principles.

The invention discloses a method for measuring the activity of Phi29 DNA polymerase and a rolling circle sequencing method. The method for measuring the activity of Phi29 DNA polymerase comprises the following steps: taking a circular single-stranded DNA as a template; in the presence of an amplification primer, using Phi29 DNA polymerase to trigger rolling circle replication to generate a large amount of continuous single-stranded DNA copies; then doping fluorescent molecules into the amplification products, detecting the fluorescent signals of the amplification products to quantify the produced single-stranded DNA copy number, and thus calculating the activity of Phi29 DNA polymerase. The provided method has the advantages of no radioactive contamination, simpleness, rapidness, and high sensitivity, and can be applied to high-flux and automatic polymerase screening.

The present invention relates to an asymmetric cationic Gemini surfactant and a preparation method thereof. The surfactant has a structural formula shown as below. Synthesis of the surfactant comprises a unilateral reaction of a short chain and a reaction of a long chain connecting with the other end. In the molecular structure of the surfactant, a sum of the total length of both carbon chains is 24, but the carbon chains at two sides of a head group have different lengths, so as to form an asymmetric quaternary ammonium salt cationic Gemini surfactant. The structure is helpful to enrich knowledge of the Gemini surfactant self-organization.

An ink jet ink which can form images whose bleeding resistance is high and whose bronzing phenomenon is suppressed, is provided. The ink is an ink jet ink for use together with a pigment ink. The ink jet ink is characterized in that: the ink jet ink contains a coloring material, a polyvalent metal and a water-soluble organic solvent(s); the coloring material is at least a compound represented by the general formula (I); a content (mol/g) of the polyvalent metal is 2.0×10⁻⁶ mol/g or more and 4.0×10⁻⁴ mol/g or less; a total content (mass %) of the water-soluble organic solvent(s) is 25.0 mass % or more with respect to the total mass of the ink; and in a dispersion distance distribution, measured by a small angle X-ray scattering method, of molecular aggregates in the ink jet ink whose coloring material concentration is adjusted to 0.5 mass %, a dispersion distance d₇₅ value corresponding to 75% of a distribution is 12.60 nm or less.

General Formula (I):

The invention discloses a nanometer modified epoxy powder coating preparation process comprising, dissolving epoxy resin into 1-2 times mass of acetone, charging 1%-15% mass fraction of nano particles based on epoxy resin, dispersing the system with ultrasonic wave 15-300 minutes while mechanically agitating, removing acetone through decompression to obtain nano modified epoxy resin, carrying out molten extrusion into in bolt extrusion machine, pressing into sheets or strips by means of tablet press machine.

The invention relates to a blended rubber of silicon rubber and high density polyethylene. The blended rubber is prepared from the following raw materials in part by weight: 55 to 75 parts of silicon rubber, 25 to 40 parts of high density polyethylene, 3 to 8 parts of silane coupling agent, 30 to 40 parts of white carbon black, 30 to 40 parts of plasticizer, and 2.0 to 10 parts of vulcanizing agent. The formula of the blended rubber provided by the invention effectively improves the liquidity of the high density polyethylene, enhances the polymerization capacity of the silicon rubber and the high density polyethylene, reduces the viscosity of material blended rubber, and improves excellent performance of the blended rubber. The prepared blended rubber is particularly applied to preparing thin silica gel plates, electric fittings, mold pressing arresters, insulators for overhead power transmission lines, shades for isolating switches, and other products. The method for preparing the blended rubber can effectively reduce the manufacturing cost and further optimize the performance of the rubber.

The invention relates to the technical field of inorganic nonmetallic materials, in particular to a synthesis method of graphene-hydroxyapatite composite material. The synthesis method of the graphene-hydroxyapatite composite material comprises the steps of preparing tris (hydroxymethyl) aminomethane buffer solution, preparing dopamine solution, reducing and modifying graphene oxide, preparing simulated body fluid and mineralizing hydroxyapatite. According to the synthesis method, the graphene-hydroxyapatite composite material is synthesized in the environment of simulating human body fluid; the obtained composite material has good stability and biocompatibility, and can be applied to the field of biological medicines.

The invention provides an establishing method of a product STL model spatial index structure, which is characterized in that a product STL model data file is read first, an axial bounding box of each triangular facet is established, corresponding data node of the triangular facet is established according to the center of the axial bounding box and the radius of a circumsphere and stored in a data node sequence, each data node in the sequence is inserted in the index structure through steps such as insertion position selection, node splitting, node axial bounding box adjustment and the like, and the data node with larger volume of the axial bounding box is reinserted in the index structure to further optimize the index structure and achieve the establishment of the product STL model spatial index structure. The establishing method can establish spatial index structures of various triangular grids with complex profiles, and has the characteristics of strong stability and high query efficiency.

According to the invention, the safety of the battery can be improved based on introduction of phosphate into the gel polymer electrolyte, , the adjustable flexibility is improved by introduction of aPEO chain segment, and the stability and the polymerization capability are improved by introduction of acrylate; thus, further research is carried out on the basis of the prior art, the polyfunctional phosphate cross-linking agent is obtained and is applied to the preparation of the phosphate-based cross-linked gel polymer electrolyte, so the cross linking agent can be copolymerized with other functional monomers to synthesize gel polymer electrolyte; the gel polymer electrolyte has the advantages of simple and convenient preparation method, high ionic conductivity, high thermal stability andgood electrochemical stability, the assembled sodium ion battery has good cycling stability and high-temperature performance, and the phosphate-based gel polymer electrolyte with high safety is provided for quasi-solid sodium/lithium ion batteries.

The invention provides a method for searching space of a triangular mesh surface model. The method comprises the following steps: first, triangular patch data expressing product surface information and a node in an index structure are both expressed into corresponding four-dimensional point objects; the four-dimensional point objects are subject to space clustering partition by selecting an insert position, realizing node split by four-dimensional clustering method, adjusting an axial bounding box of the node in the index structure and the corresponding four-dimensional point subjects, and other steps; and space clustering partition of the triangular patch in the triangular mesh surface is realized so as to establish the index structure of the triangular mesh surface model. Based on the structure, efficiency of various space searching operations of the discrete triangular mesh surface model can be improved, the speed for processing reverse engineering data of a product can be effectively improved, and stability and accuracy of a processing result is ensured.