87results about How to "Wide application background" patented technology

The invention discloses a preparation method of a surface-modified ZTA ceramic particle reinforced steel based composite material. The preparation method comprises the steps that sensitization and activation treatment is conducted on ZTA particles, surface plating is conducted, the ZTA particles are plated with nickel and chromium to achieve surface metallization by controlling the components andthe proportion of a plating solution, the ZTA particles plated with Cr-Ni layers, Ni-Cr alloy powder and Al powder are put into a graphite mold to be made into a preform which is of a honeycomb structure through vacuum sintering, molten metal is poured by adopting a casting infiltration method, and after cooling is conducted, the reinforced steel based composite material is obtained. According tothe preparation method of the surface-modified ZTA ceramic particle reinforced steel based composite material, the ZTA particles are plated with nickel and chromium to achieve surface metallization bycontrolling the components and the proportion of the plating solution, the wet problem with a metal matrix is solved, and then the mechanical property of the composite material is improved; and meanwhile, the technology is easy to operate, the cost is reduced to a large extent, no toxicity or pollution is generated, the great potential on increasing the economic benefit and the social benefit isachieved, and the good prospect of being applied to the harsh abrasive wear condition is achieved.

The invention belongs to the field of inorganic non-metal materials and the preparation technology thereof, particularly relates to a lithium base cast porcelain oral repair material and the preparation method thereof. The chemical composition ingredients of the material are as follows (weight percent): 17-24 percent of Li2O, 10-15 percent of Al2O3, 55-65 percent of SiO2, 4-6 percent of K2O, 0.5-3 percent of Na2O, 0.5-4 percent of ZrO2 and 0.5-3 percent of colorant oxide, wherein, the mol ratio between the SiO2 and the Li2O is 1.2 to 1.8:1, the colorant oxide is one or more than one of Fe2O3, MnO2 and CeO2. The preparation method of the cast porcelain oral repair material includes the following steps of material preparing, founding, water quenching, crashing, sponging drying, molding and sintering. Compared with the prior art, the invention has the advantages of low cost, high size precision, good product repetitiveness, stable product quality, fine mechanical combination property and suitability to commercial process.

The invention discloses a photosensitive composite film and a preparation method thereof, which belong to the technical field of the preparation of the optical function composite material. The technical scheme of the invention is that firstly a hydrotalcite precursor is prepared, then an ion exchange method is adopted to prepare a hydrotalcite composite material co-intercalated with a Schiff-base dye and a surface active agent, and a solvent evaporation method is utilized to assemble the hydrotalcite composite material into a photosensitive film material. The composite film material utilizes the interaction between the subject and the object. The synergistic effect of interlayer water and the surface active agent makes the composite film material have photosensitive property of ultrafast response. The photosensitive composite film has wide application background. Compared with the traditional photochromic materials, the photosensitive composite film has the advantages of simple and easy preparation, friendly environment, high stability for the optothermal and long storage time. The method has simple process and good product performance, and is suitable for the industrial production.

The invention discloses an impact hammer for a hydraulic drilling rig. The impact hammer comprises a limiting group, a valve element, a front substrate, a back substrate, a piston, a front buffer and a back buffer, wherein the limiting group is arranged on the front substrate; the valve element is arranged in the limiting group in a sleeving manner; one end of the front substrate is arranged on a power head rotating substrate of the hydraulic drilling rig, and the other end of the front substrate is provided with the back substrate in a clamping manner; the piston is arranged in inner cavities of the front substrate and the back substrate; the front buffer is arranged on the front substrate; the back buffer is arranged on the back substrate; the valve element and the piston are provided with corresponding grooves to form corresponding stress areas. The impact hammer has the advantages of simple structure, high impact frequency, large impact power, wide adaptive surface, long service life and the like and can be used on a hydraulic anchor drilling rig, while in rock-soil anchorage engineering, the drilling rig meets broken rock, sand and gravel most, and an impact rotary drilling method is one of the optimal choices.

The invention provides a license plate defogging method based on image decomposition and multiple correction fusion. The method comprises the following steps: decomposing a foggy license plate image into a texture layer and a structure layer, enhancing the texture layer, and carrying out defogging processing on the structure layer; defogging the structural layer, processing the image by adopting gamma correction and homomorphic filtering, finally setting the saturation and contrast of the image as fusion weights, and fusing the image according to a Laplace fusion method to obtain a defogged license plate image structural layer; and fusing the defogged structure layer and the enhanced texture layer to obtain a final defogged license plate image. The method solves the problem of difficulty in license plate recognition in a foggy weather environment, effectively improves the image definition, improves the accuracy of license plate positioning and recognition, and restores the normal and efficient work of an intelligent traffic system.

A method for increasing binding force between a fullerene-like carbon film and a steel substrate is disclosed. Low-temperature plasma nitriding is performed on a substrate under combined actions of aradio-frequency power supply and a pulse minus bias by adopting a plasma enhanced chemical vapor deposition technique and a low-temperature plasma nitriding technique, adopting a stainless steel sheetas the substrate, and adopting argon and nitrogen as gas sources. The method is characterized in that the method is simple in process, economical, efficient, low in nitriding temperature and good inrepeatability, and the binding force between the fullerene-like carbon film and the steel substrate is obviously increased. By adoption of the method, a situation that the fullerene-like carbon film falls under high-strength working conditions so that the fullerene-like carbon film on the steel substrate cannot achieve a lubricating effect is avoided. The method is suitable for stainless steel surfaces, is also suitable for the fields of cast iron, alloys, ceramics, polymer materials, and other materials, and has a wide application prospect, and therefore the method has a great application potential.

The invention belongs to the technical field of Web service composition in the service computing paradigm, and discloses a method for excavating WS-CDL choreography parallelism based on the PETRI net. The method for excavating WS-CDL choreography parallelism based on the PETRI net is carried out according to the following steps: step 1, WS-CDL choreography is used as an input file, the PETRI net is used to describe the WS-CDL choreography, and the WS-CDL choreography is converted to choreography defined based on the PETRI net; step 2, from the point trace equivalence, whether the choreography defined based on the PETRI net and the WS-CDL choreography satisfy the trace equivalence is examined, if the choreography defined based on the PETRI net and the WS-CDL choreography do not satisfy the trace equivalence, the conversion in the step 1 is considered to be unsuccessful, the step 1 is returned, and the PETRI net generated by the conversion process is modified; if the choreography defined based on the PETRI net and the WS-CDL choreography satisfy the trace equivalence, the conversion in the step 1 is considered to be successful, and a step 3 can be carried out; step 2, control flow relation and interaction relation of the choreography defined based on the PETRI net are analyzed, the dependence relationship is calculated, and a dependence graph is constructed in order to search possible parallelism and interaction in the choreography.

The invention discloses application of a PKC enzyme inhibitor in preparing a drug for improving and protecting islet beta cell functions. Through a series of experiments, it is verified that the PKC enzyme inhibitor has a good inhibitory effect on THAP-induced islet beta cell apoptosis, can significantly inhibit the expression of TXNIP and can effectively inhibit the expression of mRNA and proteinwhich are related to endoplasmic reticulum stress. The PKC enzyme inhibitor can provide a good candidate drug for clinical treatment of diabetes caused by the apoptosis and decrease of islet beta cells, and has a very good application prospect.

The invention provides a fast curing resin system, belonging to the technical field of preparation of epoxy resin systems. The resin system at least comprises epoxy resin, a curing agent and an accelerant, wherein the ratio of the epoxy equivalent of the epoxy resin to the active hydrogen equivalent of the curing agent is equal to 1.0 / 0.8-1.0 / 1.2; the accelerant is a polyol, and the content of theaccelerant is 0.31-3.9%. The epoxy resin system can realize rapid and uniform curing cross-linking at a specified temperature, and the cured product has excellent mechanical properties and can be used for preparing fiber-reinforced resin matrix composite automotive parts and fiber-reinforced epoxy resin composite materials. The polyol is used as the reaction accelerant of the epoxy resin and thecuring agent, so that the reaction rate of the epoxy resin system is accelerated, the molding cycle is shortened, and a better effect is achieved.

The invention discloses a tungsten oxide alloy material and a preparation method thereof, and relates to the technical field of alloy materials. The tungsten oxide alloy material is composed of 0.3%-0.5% of C, 1.5%-2.0% of B, 5%-10% of Ni, 5%-10% of W, 0.5%-1.5% of La, 2.0%-2.5% of Ta, 2.0%-2.5% of Re, 2.0%-2.5% of Mo, 2.5%-5% of Ti, 1.0%-1.5% of Y, 5%-10% of K,5%-10% of V and the balance iron. According to the tungsten oxide alloy material and the preparation method thereof, due to the microalloying effect of elements such as Ni, Cr, W and Re, the wear resistance and the corrosion resistanceare greatly improved, the thermal shock resistance and the crack resistance are improved, meanwhile, the hardness is proper, machining is facilitated, the yield can be increased, and resource consumption is reduced.

The invention discloses a preparation method of a surface-modified ZTA ceramic particle reinforced steel based composite material. The preparation method comprises the steps that sensitization and activation treatment is conducted on ZTA particles, surface plating is conducted, the ZTA particles are plated with nickel and chromium to achieve surface metallization by controlling the components andthe proportion of a plating solution, the ZTA particles plated with Cr-Ni layers, Ni-Cr alloy powder and Al powder are put into a graphite mold to be made into a preform which is of a honeycomb structure through vacuum sintering, molten metal is poured by adopting a casting infiltration method, and after cooling is conducted, the reinforced steel based composite material is obtained. According tothe preparation method of the surface-modified ZTA ceramic particle reinforced steel based composite material, the ZTA particles are plated with nickel and chromium to achieve surface metallization bycontrolling the components and the proportion of the plating solution, the wet problem with a metal matrix is solved, and then the mechanical property of the composite material is improved; and meanwhile, the technology is easy to operate, the cost is reduced to a large extent, no toxicity or pollution is generated, the great potential on increasing the economic benefit and the social benefit isachieved, and the good prospect of being applied to the harsh abrasive wear condition is achieved.

The invention discloses an analysis method of a biochemical sensor based on a series LPWG. By utilizing the coupling characteristics of the LPWG, light in a certain bandwidth range centered on the resonant wavelength in the incident light wave is coupled into the measured envelope through the LPWG1, and then passes through the LPWG2. This part of the light is coupled into the waveguide core layer, and the output is interfered with the fundamental mode propagating in the same direction in the waveguide core layer. When the measured substance changes, the resonance wavelength in the output spectrum will shift, and the measured substance concentration can be calculated by detecting the offset. Analyze the absorption spectrum signal of the liquid in the output spectrum to realize the characterization of the measured substance. On the one hand, the method of the invention solves the problem that traditional biochemical sensors rely on a specific sensitive film with high price and a single detection index to be qualitative; limit problem.

The invention provides a robust filtering method aiming at parameter uncertainty and observation loss. The robust filtering method comprises the following steps: 1, describing a question through a mathematical model, and modeling of norm-bounded parameter uncertainty and observation loss; 2, giving a filter model of undetermined parameters according to the mathematical model established in the step 1; 3, performing augmentation on an original state equation, solving a state covariance matrix after the augmentation, and constructing a novel state vector; 4, searching for an estimation error covariance of the original state vector according to the state covariance matrix after the augmentation in the step 3; and 5, setting the filter parameters, so that a minimum value is obtained at the upper bound of the estimation error covariance obtained in the step 4. Therefore, minimization of the upper bound of the state estimation error covariance is realized under the condition that a filter has the norm-bounded parameter uncertainty and observation loss.

The invention provides a method for eliminating chopping waves and ripple waves and an analogue-digital conversion circuit for realizing the method. The method comprises the following steps of: carrying out two times of sampling on signals in a chopping wave period at an interval which is one half of time of the chopping wave period; and carrying out integration and summation on two times of sampling values so as to keep useful signals and eliminate residual ripple wave signals in the chopping waves. The signal amplification and analogue-digital conversion circuit comprises a chopping wave amplifier and a sigma-delta analogue-digital converter which is cascaded behind the chopping wave amplifier. A switching structure which is embedded into the sigma-delta analogue-digital converter is adopted and an analogue addition function of a first-grade integrator in the analogue-digital converter can be used for carrying out first-order reshaping (voltage summation) on the residual ripple waves of output signals of the chopping wave amplifier, so that the ripple wave amplitude is reduced and influences on the conversion precision of the analogue-digital converter is weakened. The circuit does not need an analogue low-pass filter between the chopping wave amplifier and the analogue-digital converter, so that the power consumption and the area are saved and the design of the circuit is simplified.