188results about How to "Inhibit bad effects" patented technology

In order to provide a dispersion wherein the dispersed state of a fluorine-based resin is uniformly controlled, a polyimide precursor solution composition using this dispersion, an adhesive composition, a polyimide and polyimide film obtained from this polyimide precursor solution composition and having excellent heat resistance, excellent mechanical characteristics, excellent electrical characteristics such as lower dielectric constant and lower dielectric loss tangent, and excellent processability, a method for producing the polyimide, a method for producing the polyimide film, and a circuit board and coverlay film using the polyimide film, the present invention provides: a polyimide precursor solution composition containing a fluorine-based resin, which is characterized by containing a polyimide precursor solution and a nonaqueous dispersion of a fluorine-based resin containing a micropowder of a fluorine-based resin and a butyral resin or a fluorine-based additive containing at least a fluorine-containing group and a lipophilic group; and an adhesive composition.

The invention relates to a special rare earth alloy silver-brazing filler metal applied to the brazing of the metal workpieces such as copper and copper alloy, cemented carbide, carbon steel, stainless steel, nickel-based alloy and the like, and belongs to a moderate temperature brazing material. At present, no silver-brazing filler metal has excellent performance and low price, so that the development of the brazing field is obstructed. The special rare earth alloy silver-brazing filler metal comprises the following components in percentage by weight: 25 to 35 percent of Ag, 32 to 38 percent of Cu, 1 to 2.5 percent of Sn, 0.5 to 2.0 percent of Ni, 0.01 to 1 percent of Mn, 0.1 to 1.0 percent of Li, 0.01 to 0.5 percent of Si, 0.001 to 0.1 percent of mixed rare earth, and the balance of Zn, wherein the mixed rare earth consists of lanthanum and cerium. The special rare earth alloy silver-brazing filler metal has the advantages of high cost performance, low fusion temperature of brazing filler metals, good wettability and fluidity, high mechanical strength of soldered joint, and good soldering technological property.

Provided is an electro-optic apparatus including an organic sealant that seals a first substrate and a second substrate, an inorganic sealant that surrounds the organic sealant which seals the first substrate and the second substrate, and an electro-optic material that is enclosed within an area surrounded by the organic sealant.

A backup method for the basic input/output system (BIOS) of computer interfaces is disclosed. When the BIOS of an interface is broken, the backup BIOS stored in the computer can be transferred to the interface for maintaining normal operations.

The invention discloses an asphalt pavement repair material, and belongs to the field of engineering materials. The asphalt pavement repair material is prepared from 20-60 parts of monomers of thermosetting polymers and/or prepolymers of the thermosetting polymers, 2-8 parts of an antioxidant, 1-8 parts of an accelerant, 10-30 parts of an admixture, 5-60 parts of the thermosetting polymers, 10-40parts of an initiator, 10-20 parts of a reinforcing agent, 1-60 parts of a diluent and 10-40 parts of aggregates. The asphalt pavement repair material has the advantages of being high in condensationrate, strength, waterproofness and abrasion performance and capable of repairing pavement and getting the traffic to move again in 30 minutes and making construction easy. According to a pavement repaired with the asphalt pavement repair material, the compressive strength can reach 100 MPa, the wet wheel abrasion value is smaller than 800 g*m<-2>, and the load wheel adhesion sand amount water immersion 1d is smaller than 450 g*m<-2>.

An intracorporeal substance measuring assembly to be provided in an embedded-type substance sensor for detecting and measuring an intercorporeal analyte includes: a detection layer containing at least one fluorescent indicator for generating fluorescence according to the concentration of the analyte; and an optical separation layer which is provided on the detection layer, is optically opaque, permits the analyte to penetrate therethrough, and prevents the penetration therethrough of at least one of living body substances possibly deteriorating the detection layer and/or obstructing the fluorescence.

Aiming at the hysteresis nonlinearity of a magneto-rheological damper (MRD) and the change of a vehicle load, the invention discloses a control method aiming at a mixed semi-active variable structure of a ''1/4'' magneto-rheological intelligent vehicle suspension, wherein an improved ceiling suspension system is used as a reference model, the asymptotically stable sliding mode control is realizeddynamically according to the error between the controlled system and the reference model, and an MRD inverse model and a symmetrical damping type MRD are used for generating two basic control policies of asymmetrical damping characteristics to realize real-time tracking control of the MRD damping force to the ideal damping force thereof, thereby improving the comprehensive performance of the ''1/4'' MR vehicle suspension system, enhancing the robustness to the change of the vehicle load, and effectively inhibiting the adverse effect on the system performance by the hysteresis nonlinearity of the MRD.

The invention discloses an engine exhaust noise off-line simulation test table and test method, belongs to the environment simulating device field, wherein the structure of the test table comprises a gas source that generates the gas required in simulation of the engine exhaust, a gas inlet control section that controls the flow and the temperature of the gas and eliminates the gas inlet noise, a noise section producing the noise of a simulated engine and a test section that is provided with a test member; the gas source, the gas inlet control section, the noise section and the test section are sequentially connected; the noise section comprises a loudspeaker and a soundproof box; the loudspeaker is located in the soundproof box to prevent the noise displaying process from being interfered by the outside; and the test section is a muffler chamber for isolating the noise from the outside, thereby providing the test environment free from outside influence. According to the invention, the flow, the temperature of the simulated gas and the volume of the noise can be separately controlled; and the simulation of the gas exhaustion noise of the engine in the hot state and the cold state can be finished.

For improved high-definition of liquid crystal display devices and the use thereof in bright places, luminance of backlights is being increased. Thus, when a light-shielding layer is employed for suppressing a light leakage current, characteristic fluctuations of transistors are caused, which may result in showing faulty display. In a dual-gate thin film transistor having a floating light-shielding layer, the layout is designed in such a manner that the film thickness of the insulating layer is equal to or more than 200 nm and equal to or less than 500 nm and that Sg/Sd becomes 4.7 or more, provided that an opposing area between the light-shielding layer and a drain region in a place at the outermost side of the active layer is Sd and the opposing area between the light-shielding layer and the gate electrode is Sg.

The invention discloses a blocking network access method and a blocking network access device for ensuring safety. The method comprises the steps of acquiring a network access request, redirecting the network access request to a local service process, wherein the local service process is provided by a local VPN; in the local service process, constructing message data to notice an application based on a browser core to reinitiate the network access request at preset intervals; extracting at least one resource request link information corresponding to the network access request, and determining that whether the network access behavior is a malicious access behavior through analyzing the at least on resource request link information; and if determining that the network access behavior is the malicious access behavior, creating a non-safety prompt page and presenting to the user after acquiring the reinitiated network access request. By using the method, as being the malicious access behavior, the network access behavior is blocked, and the non-safety prompt page is presented to the user, thus the bad influence brought to the user by the malicious access behavior is effectively contained.

A non-aqueous-electrolyte based secondary battery includes a mixture of lithium manganate and lithium nickelate as a cathode active material, and includes at least one element selected from Bi, Pb, Sb and Sn. The secondary battery has a higher capacity, is superior in safety and yet superior in the high-temperature cycle characteristic

The invention discloses a method for estimating the state of a three-phase four-wire low-voltage distribution network and belongs to the technical field of three-phase state estimation of distribution networks. The method comprises the following steps of firstly, by using a computer, inputting low-voltage distribution meter-reading electric data and a network structure which are acquired within any time section, and parameter information through a program, and initiating the data, the network structure and the parameter information; then calculating constant item parts of a node admittance matrix and a jacobian matrix; synthesizing a measuring equation and T-end point zero injection equation restriction, and taking a real part and an imaginary part of voltage as state variables to calculate unbalance amount, an index type weight function and the jacobian matrix; finally updating the state variables and performing astringency judgment to realize estimation on the state of the three-phase four-wire low-voltage distribution network. Active power and reactive power of a node can be independently calculated by the method, the adverse influence of bad data on an estimating result is prevented, and the method has the characteristics of high difference resistance, good astringency, good numerical stability and the like. The method is widely applied to the estimation on the state of the three-phase four-wire low-voltage distribution network.

The present invention relates to the communication field and provides method and system for detecting repeater self-excitation and the repeater using the method and system. The method includes detecting an output power of an up link; judging whether the detected output power of the up link exceeds a threshold of self-excitation and, if so, adding a numerically-controlled attenuation to the up link accordingly; and judging whether the change in the output power of the up link is equal to that in the numerically-controlled attenuation and, judging whether the repeater is subject to a self-excitation according to the result of judgment regarding the change in the output power of the up link. The repeater self-excitation detecting method has the following advantages: 1. The self-excitation can be detected in time, thus avoiding had effect on the communication system; 2. The devices of repeater can be protected from being burned down; and 3. The cost incurred by the patrol inspection personnel can be reduced,

The invention relates to the technical field of sewage treatment process control, and provides to an adaptive predictive control method for a sewage treatment process based on integrated instant learning. The method comprises the following steps of firstly determining the controlled quantity and control quantity, and collecting historical data of the sewage treatment process and constructing a historical database; then constructing a query regression vector, selecting an optimal similar learning subset under different similarity indexes, processing abnormal data, training to obtain a pluralityof groups of prediction models, and obtaining an integrated prediction model through integrated weighting; and calculating the reference trajectory, constructing an optimized control performance index, and obtaining the optimal control quantity; and finally, sending the optimal control quantity to a PLC system by a host computer to adjust a fifth zone oxygen volume regulating valve, collecting the latest group of measurement data, and updating the historical database. According to the adaptive predictive control method for the sewage treatment process based on the integrated instant learningprovided by the invention, adaptive stable and accurate control can be carried out on the sewage treatment process, the utilization rate of off-line and on-line input/output measurement data is improved, and the influence of input and output interferences and the abnormal data on control is effectively inhibited.

The invention discloses a roll finishing device. The roll finishing device comprises a rolling wheel, a bearing block, a guide rail, a linear bearing, a cylinder guide rod connected with the guide rail as well as a belleville spring group and a sliding bearing which are mounted on the cylinder guide rod, wherein a rotary shaft is arranged in the bearing block, the rolling wheel is fixed at the lower end of the rotary shaft, the guide rail is inserted into the linear bearing and mounted on the bearing block, the linear bearing is inserted into a casing and fixed at the front end of the casing, one end of the cylinder guide rod is inserted into the guide rail, the other end is connected with a pressure sensor, the outer side of the pressure sensor is mounted on a regulating ring which is connected onto the casing, a first pressure bearing pad and a second pressure bearing pad are fixed on the cylinder guide rod, a gap between the first pressure bearing pad and the second pressure bearing pad is sleeved with the belleville spring group, the sliding bearing is arranged on the second pressure bearing pad, and the first pressure bearing pad is propped against the guide rail. The roll finishing device is compact in structure, rolling pressure input by the regulating ring is transmitted to a rolling cutter accurately, and pressure component loss is avoided.

The invention discloses casting powder for a continuous casting crystallizer. The casting powder comprises raw materials in parts by weight as follows: 3.5-15 parts of fluorite, 35-55 parts of aedelforsite, 5-15 parts of alkali, 0-2 parts of lithium carbonate, 0-10 parts of diaspore, 0-6 parts of a cement clinker, 1-5 parts of magnesia powder, 2-5 parts of pyrolusite, 0-8 parts of sodium fluoride, 0-5 parts of barium carbonate, 0-5 parts of bentonite, 1-4 parts of coke, 0-8 parts of a carburant, 1-3 parts of carbon black and 1-2 parts of a binder. According to the casting powder, the preparation cost is low; the recovery rate of the casting powder is larger than or equal to 98.5%; the color of the casting powder is uniform; the granularity is uniform; the granulation rate is high; dust is reduced; the melting point of the casting powder is low; the viscosity is low; after the casting powder is added into the crystallizer, the casting powder is melted uniformly and shows excellent spreadability, heat retaining property and adsorptive property; heat is transferred uniformly all around the crystallizer, and the lubrication is excellent; and defects such as concave pits, impurities and the like don't exist on the surface of a casting blank, the internal quality is excellent, and the qualified rate of the casting blank is equal to or larger than 99.8%.

The invention discloses a weight function least square state estimation method based on residual normalization, and belongs to the field of electric power system dispatching automation. The method comprises the steps that SCADA data, collected by a data terminal, of any time section, a network structure and parameter information are input firstly through a computer and a program and initialized; a node admittance matrix of a network is calculated, a zero-injection equality constraint equation is formed, and then a corresponding residual, a jacobian matrix and a weight function are calculated by comprehensively considering a voltage amplitude value measuring equation, an injection power measuring equation and a branch circuit power measuring equation and taking the node voltage amplitude value and phase angle as state variables; finally, the state variables are updated, convergence judgment is conducted, and the state estimation of a power grid is achieved. By means of the weight function least square state estimation method based on residual normalization, bad lever measurement can be effectively restrained, high robustness and good convergence are achieved, the computational efficiency is very high, and a good engineering application prospect is achieved.