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239results about How to "Overcome instability" patented technology

Data disaster tolerance system suitable for WAN

InactiveCN101316274ATo achieve the purpose of disaster recoveryReduce data volumeTransmissionRedundant operation error correctionComputer moduleGeolocation
The invention discloses a data disaster tolerant system which is applicable to a wide area network, pertains to the technical filed of computer information storage and solves the problem that the current data disaster tolerant system does not take the effect of data transmission links and the need of lots of redundant data storage space in the wide area network into consideration. The system of the invention comprises M local storage clients connected to the wide area network and N storage servers in different geographical positions; every local storage client consists of a web manager, a snap module, a mapping file redundant array module, a compression module, a decompression module, an encryption module, a decryption module, a backup distribution module and a recovery and integration module; the storage server consists of a failure detection module, a distributed arbitration module, a recovery module, a distributed copy service module, a backup and recovery service module. The system of the invention combines disaster tolerant coding and copying, reduces the amount of redundant data and effectively utilizes storage space. Meanwhile, data to be transmitted is compressed and encrypted, thus improving the safety and reliability of data on network transmission, effectively utilizing network bandwidth and reaching excellent disaster tolerant effect.
Owner:HUAZHONG UNIV OF SCI & TECH

Multifunctional concrete structure endurance protective agent, preparation and application method thereof

The invention discloses a multifunctional concrete structure endurance protective agent as well as the preparation and application method thereof. The protective agent provided by the invention contains the following ingredients of: an organic / inorganic composite fluorosilicone-acrylate copolymer, lithium silicate, sodium silicate, lithium molybdate, sodium tetraborate, sal glauberi, 1,2-aminoazophenylene, nanometer titanium dioxide, anhydrous ethanol and water. The protective agent can penetrate inside concrete, wherein a densification ingredient can minimize internal holes and cracks to raise the compactness of concrete, and a rust-resistant ingredient can penetrate into concrete and be adsorbed on the surface of steel bar so as to passivate and protect the steel bar; the low-surface energy silicon fluoride ingredient can be solidified to form a cured film on the surface of concrete so as to endow the protective agent with the hydrophobic performance; a nanometer ingredient can endow the cured film layer with properties of resisting ultraviolet and ageing and improving the organic polymer performance as well as the self-cleaning performance. In addition, hydroxy generated from the hydrolysis of siloxane group can perform a condensation reaction with hydroxy on the surface of concrete to produce chemical bond, so as to raise the anchoring strength between the film and concrete and improve the interface combination. The protective agent provided by the invention can be widely applied in various concrete structure engineering protections to raise the service life of concrete.
Owner:CENT SOUTH UNIV +1

Lithium ion battery remaining life indirect prediction method based on probability integration

ActiveCN103954915AStrong nonlinear predictive abilityOvercome instabilityElectrical testingInstabilityLithium-ion battery
The invention provides a lithium ion battery remaining life indirect prediction method based on probability integration, relates to the technical field of lithium ion battery remaining life prediction and aims at solving the problem that under the online working condition, the capacity of a lithium ion battery is immeasurable and a traditional MONESN method is unstable. The method comprises the steps of firstly establishing a health factor HI; establishing an HI relevancy model GLRM according to the HI; utilizing GLRM to estimate an HI invalidation threshold value; utilizing the invalidation threshold value to perform the lithium ion battery remaining life prediction; performing uncertainty expression on a prediction result. The lithium ion battery remaining life indirect prediction method overcomes the shortcoming that most of lithium ion battery remaining life prediction depends on maximum capacity, solves the problem that the invalidation threshold value of the established HI serves as a judgment condition of end of life and is difficult to confirm and effectively solves the problem of instability of a traditional MONESN method. In addition, uncertainty expression and management are achieved. The lithium ion battery remaining life indirect prediction method is suitable for lithium ion battery remaining life prediction when the capacity is immeasurable.
Owner:HARBIN INST OF TECH

Deoxyribonucleic acid (DNA) sequencing device based on graphene nanopore-microcavity-solid-state nanopore and manufacturing method

The invention discloses a deoxyribonucleic acid (DNA) sequencing device based on a graphene nanopore-microcavity-solid-state nanopore and a manufacturing method. The manufacturing method comprises the steps of etching an inverted-pyramid-shaped microcavity in the upper part of a silicon on insulator (SOI) silicon wafer; etching a columnar hole on the lower part of the SOI silicon wafer, wherein the tower top of the inverted-pyramid-shaped microcavity is the solid-state nanopore; etching the graphene on the upper part of the inverted-pyramid-shaped microcavity; etching the graphene nanopore in the center of the graphene, wherein a platinum electrode and a longitudinal weak current measurement device as well as a power supply form a longitudinal weak current measurement loop, and a gold electrode and a transverse weak current measurement device as well as the power supply form a transverse weak current measurement loop; etching an inverted cone cavity in the front side of the SOI silicon wafer; etching a vertical columnar hole at the back of the SOI silicon wafer; corroding an oxidized buried layer on the SOI silicon wafer to form the solid-state nanopore; transferring the prepared graphene to the surface of the SOI silicon wafer; etching the graphene nanopore coaxial to the fixed nanopore in the center of the graphene; and enabling a chip, the power supply and an ampere meter to form a circuit so as to realize the sequencing of the DNA by testing the change of current intensity in the circuit when the DNA penetrates through the nanopore.
Owner:TSINGHUA UNIV

Planetary stirring device with stirring paddle capable of vertical reciprocating motion and method

The invention relates to a planetary stirring device with a stirring paddle capable of vertical reciprocating motion and a method. The device comprises a driving mechanism positioned above a cylinderbody, wherein the driving mechanism is connected with a rotating arm; the end part of the rotating arm is connected with a stirring shaft assembly capable of rotating around the axis of the stirring shaft assembly; the axis of the stirring shaft assembly deviates from the axis of the cylinder body; the stirring shaft assembly comprises an outer stirring shaft and an inner stirring shaft which arecoaxially arranged; the outer stirring shaft sleeves the inner stirring shaft; the outer stirring shaft is connected with a gear; the gear is meshed with an inner gear ring fixed on the cylinder body;the outer stirring shaft can drive the inner stirring shaft to rotate around the axis of the inner stirring shaft; the inner stirring shaft can also move along the axis direction of the inner stirring shaft; the outer stirring shaft is connected with a cam through a transmission mechanism; the cam makes contact with a top plate; the top plate is connected with the inner stirring shaft; the cam can drive the inner stirring shaft to move in the axis direction of the stirring shaft assembly through the top plate; the stirring paddle is fixed to the inner stirring shaft. The stirring device is good in stirring effect.
Owner:SHANDONG UNIV

Method and system for optimal design and process control of heat setting process of elastic fabric

The invention discloses a method and a system for optimal design and process control of a heat setting process of an elastic fabric. The method comprises the following steps of: a) establishing a heat setting process model of the elastic fabric according to relations among parameters of the elastic fabric, heat setting quality indexes and heat setting process parameters; and b1) acquiring the heat setting quality indexes by taking the parameters of the elastic fabric and the heat setting process parameters as initial conditions according to the heat setting process model; or b2) determining the heat setting process parameters by taking the parameters of the elastic fabric and the heat setting quality indexes of design requirements as initial conditions according to the heat setting process model, and selecting the optimal heat setting process parameter according to a preset determination rule, wherein the heat setting quality indexes at least comprise heat setting efficiency which is the ratio of breadth of a finished fabric to breadth during setting; the heat setting process parameters at least comprise heat setting time and a heat setting temperature; and the heat setting process model comprises a multivariate non-linear model for defining relations between the heat setting efficiency and the heat setting time as well as the heat setting temperature.
Owner:FUJIAN FYNEX TEXTILE SCI & TECH

RBF (radial basis function) neural network-based indoor visual environment control system and method

The invention provides an RBF (radial basis function) neural network-based indoor visual environment control system and method. The system includes a data acquisition module, a data processing and control module and an output driving module; the data acquisition module is used for acquiring indoor and outdoor illuminance values; the data processing and control module is used for obtaining indoor illumination control parameters according to the illuminance values and based on an RBF (radial basis function) neural network algorithm and outputting the indoor illumination control parameters; and the output driving module is used for controlling indoor shutter blinds to rotate and/or an indoor lighting lamp to be turned on according to the indoor visual control parameters so as to realize an indoor visual environment comfortable control effect. According to the RBF (radial basis function) neural network-based indoor visual environment control system and method of the invention, the relatively reasonable indoor visual environment neural network control system is constructed, the control precision and universality of the indoor visual comfortable environment control system can be improved, defects such as instability and limitations of a traditional control system and method can be eliminated; and illumination power resources can be saved to the greatest extent with indoor visual comfort ensured.
Owner:CHINA AGRI UNIV

Solar regenerative heating device for greenhouse heating

The invention discloses a solar regenerative heating device for greenhouse heating, which comprises a heat collection system and a heating system. The heat collection system comprises a solar thermal collector and a water tank communicated with the solar thermal connector through a first circulation pipeline. The heating system comprises a coil radiator, a manifold, a water collector and a buried tube heat exchanger, wherein the coil radiator is communicated with the water tank through a second circulation pipeline, the manifold and the water collector are connected to the water tank through a third circulation pipeline, the buried tube heat exchanger is connected between the manifold and the water collector, the coil radiator can be used as a heating device for the heating system, heat of the water tank can be used for heating, and heat stored in the buried tube heat exchanger in the underground soil inside a greenhouse in a non-heat-supply season can also be used for heating. By means of the solar regenerative heating device for greenhouse heating, seasonal storage of solar heat is realized, greenhouse heating is less susceptible to seasons and sunshine amount, the greenhouse heating is continuous and effective, and solar energy utilization rate is increased.
Owner:SHANGHAI JIAO TONG UNIV

Preparation method of liposome and product prepared by preparation method of liposome

The invention relates to a preparation method of a liposome and the liposome prepared by the preparation method. The preparation method of the liposome comprises the following steps: (1) respectively preparing a lipoid molecule solution and a guest molecule solution; and (2) mixing the mixed lipoid molecule solution prepared in step (1) with a host molecule solution, so as to obtain the liposome. The liposome obtained by the preparation method is a single-compartment liposome of which the particle size is distributed in the range of 15-100nm, especially, in the range of 20-80nm. The invention also provides a preparation method of a drug-carrying liposome as well as the drug-carrying liposome obtained by the preparation method. The liposome or the drug-carrying liposome prepared by the preparation method is small in particle size and narrow in distribution, so that the liposome drug can be more rapidly administered to the lesion to improve curative effect; moreover, the micro-particle-size liposome prepared by the preparation method is capable of reaching the inside of the tumor tissue where the regular liposome cannot reach. Furthermore, the in-vivo transport time of the liposome drug is shortened by the rapid administration of the liposome drug, so that the degradation loss of the liposome drug by the organism enzyme system and the immune system is further reduced so as to reduce the toxic and side effects.
Owner:王海龙

Protective agent for bridge with steel structure, preparation method thereof and application thereof

InactiveCN102199390AInhibition of large contractionsReduce peelingAnti-corrosive paintsUltravioletPolymer
The invention discloses a protective agent for a bridge with a steel structure, a preparation method thereof and application thereof. The protective agent comprises the following components: an organic / inorganic composite fluorosilicone styrene polymer, lithium silicate, sodium molybdate, benzotriazole, nanometer titanium dioxide, sodium gluconate, ethanolamine, absolute ethanol and distilled water. Corrosion inhibiting ingredients contained in the protective agent can be attached to the metal surface of the bridge with the steel structure, so that a compact protective film is formed on the metal surface due to a passivating reaction for corrosion inhibition and corrosion prevention; a low-surface energy fluorosilicone styrene polymer component contained in the protective agent can be cured to form a film for playing the hydrophobic and protective roles; a nanometer component can improve the performance of ultraviolet aging resistance of a film layer, improve the performance of the polymer and provide the excellent self-cleaning performance and the like for the cured film; and hydroxyl generated by hydrolyzing siloxane groups can perform a condensation reaction with hydroxyl on the surface of the bridge with the steel structure to generate a chemical bond so as to improve adhesive power between the film layer and a matrix material and improve interface bonding. The protective agent is high in stability, non-toxic, environment-friendly, multiple in functions and easy to construct, can be widely used for the protection of the structural engineering of various bridges with the steel structures, and is favorable for improving the service life of the bridge with the steel structure.
Owner:CENT SOUTH UNIV +1
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