363results about How to "Free from influence" patented technology

The invention belongs to the technical field of environmental monitoring and particularly relates to a multi-component atmospheric environment gridded monitoring instrument. The invention aims to solve a problem that traditional atmospheric monitoring equipment has the disadvantages of a large volume, a high price and complex installation and maintenance and is difficult in satisfying higher and higher monitoring requirements. The invention provides the multi-component atmospheric environment gridded monitoring instrument which comprises a box body, a box body upper cover, a solar panel, a solar cell charging management unit, a storage battery, a switch power supply, a motherboard, a GPRS transmission module, a GPRS antenna, a GPS module, a partition switching board, a temperature and humidity sensor, a shield, an inlet humidity control unit, an air guidance fan, a PM2.5 sensor, a PM10 sensor, a gas sensor unit, and a meteorological station. Compared with the traditional atmospheric monitoring equipment, according to the atmospheric monitoring instrument, the reasonable model selection is carried out in various sensors, the humidity conditions measured by the sensors are controlled, and thus the sensors have the advantages of high accuracy, good stability, and high contrast in atmospheric gridded distribution site monitoring.

The invention discloses underfill with low viscosity and low linear expansion coefficient for flip-chip packaging, which is prepared with the following raw materials by weight percent: 0-28.6 percent of bisphenol-type epoxy resin, 0-28.6 percent of organosilicon modified epoxy resin, 0.57-15.4 percent of toughening agent, 16.3-84.2 percent of alicyclic epoxy resin, 0.57-15.4 percent of latent curing agent, 0.55-5.56 percent of accelerator, 0.55-5.56 percent of surfactant, 0.57-27 percent of coupling agent, 7.4-66.7 percent of inorganic filler and 0-7.9 percent of pigment. With the ratio of the components, the invention overcomes the defects of the existing underfill, and has the advantages of: (1) high stability in the storage period; (2) low viscosity and good fluidity, wherein the viscosity is 1000-2000 centipoises; (3) low linear expansion coefficient (20-40ppm per DEG C); (4) high curing speed, wherein the underfill can be cured for 130 degrees within 5 minutes; (5) high shear strength (15MPa) and the like.

The invention relates to a preparation method of more stable vitamin A microcapsules, comprising the following steps of: firstly, preparing a vitamin A oil solution containing an antioxidant from vitamin A and the antioxidant in the absence of oxygen, adding chitosan and stirring evenly, after stirring fully, filtering and removing the chitosan to obtain the vitamin A oil solution; adding octenyl succinic acid modified starch to purified water deaerated by a thermal spray deaerator, heating for dissolution; mixing the prepared octenyl succinic acid modified starch solution and the vitamin A oil solution in a certain proportion, emulsifying quickly by an on-line emulsifying machine, and instantly cooling by a cooler; and performing hot air spray drying on the emulsion to obtain stable vitamin A microcapsules. The storage life of the product prepared in the invention reaches two years.

The invention concerns a system for controlling a motor vehicle brakes, comprising standard functional units provided with a braking electronic regulator and a hydraulic unit in particularly fixed connection with the regulator, said electronic regulator including a redundant or partly redundant system of microprocessors with several central units (UC) and standard functional units having a controlling and regulating philosophy at least for an anti-skidding system. Said control system also comprises non-standard hardware and software functional units of an external safety system for protecting the passengers of a motor vehicle, said system being passive, that is it does not intervene directly in the vehicle dynamics. Said units are integrated in the field of the motor vehicle brake control system, ''field'' meaning that the non-standard hardware and software functional units to be integrated are placed at least in the direct vicinity of the standard braking electronic control regulator.

The invention discloses an environment-friendly, safe and efficient paint spraying device to overcome deficiencies that the work efficiency is affected and the like due to the poor operation environment of prior paint spraying devices. A paint spraying mechanism comprises an operation mechanism capable of displacing and rotating the paint spraying mechanism. The operation mechanism comprises a paint spraying switch and an operation handle which stretches out of a paint spraying case and is capable of controlling the rotation of the paint spraying mechanism. A shelf capable of holding an object to be sprayed is arranged in the paint spraying case and comprises moving rollers. A supporting plate is arranged in the shelf and is composed of a rotation mechanism, a lifting mechanism and a supporting plate folding mechanism. The paint spraying case comprises a controller for controlling the displacement rotation of the paint spraying mechanism and the shelf. The device is used for environment-friendly, safe and efficient paint spraying of furniture and other objects, and paint spraying workers can operate the paint spraying mechanism to spray paint through the operation handle or the controller on the outside of the case and perform appearance judgment, so that the work efficiency is improved by 10%, and the paint spray efficiency is improved by 15%.

The invention relates to a preparation method of a spiropyrane photochromic optical material. The surface of the optical material prepared by adopting the preparation method is coated with a photochromic coating, the coating contains a polyurethane/spiropyrane/zinc sulfide composite multilayer photochromic material, a core of the coating is zinc sulfide mesoporous nano microspheres, an intermediate layer is a photochromic layer composed of spiropyrane compounds, and a shell is polyurethane; and the outer diameter of the composite microspheres is 50-350nm, the diameter of the zinc sulfate mesoporous nano microspheres is 30-250nm, the thickness of the intermediate layer is 5-25nm, and the thickness of the shell is 5-25nm. The optical material prepared by adopting the preparation method can become colored from colorless under ultraviolet irradiation condition, can also be rapidly faded to be colorless after ultraviolet rays disappear and has the advantages of strong fatigue resistance, good stability and high color-changing speed.

The invention discloses a photochromic nano composite microsphere and an application thereof. The photochromic composite microsphere has a three-layer composite core-shell structure, an inner core isa zinc sulfide mesoporous nano microsphere, a middle layer is a photochromic layer formed by a spiropyran compound, and an outer layer is polyurethane; and the outer diameter of the composite microsphere is 50-350nm, wherein the diameter of the zinc sulfide mesoporous nanosphere is 30-250nm, the thickness of the middle layer is 5-25nm, and the thickness of the outer shell is 5-25nm. The photochromic composite microsphere provided by the invention can be used to prepare a photochromic coating or doped into a resin optical material to prepare a photochromic material. The material can be changedfrom colorless to colored under the irradiation of ultraviolet rays, and after the ultraviolet rays disappear, the material can be quickly faded into colorless, and has the advantages of strong fatigue resistance, good stability, a fast color change speed and the like.

The invention relates to the field of concrete engineering, in particular to a microbial microcapsule anti-sulfate erosion system of structural concrete. The invention provides the microbial microcapsule anti-sulfate erosion system of underground structural concrete, which comprises a concrete matrix and microbial microcapsules inside the concrete matrix, wherein sulfate reducing bacteria and culture media suitable for the growth of the sulfate reducing bacteria are coated inside the microbial microcapsules. Compared with the prior anti-sulfate erosion method, the microbial microcapsule anti-sulfate erosion system provided by the invention has the following advantages that the intelligent control of the sulfate concentration can be realized, and the sulfate erosion degree is reduced; sulfur precipitants can be generated simultaneously with the reduction of the concentration of sulfate ions to block sulfate erosion passageways; the microcapsules can protect the internal microorganisms and culture media from the effects of the external environment, so the anti-sulfate erosion capability of the microorganisms and the culture media is effective for a long time; and large-range restoring can be realized.

The invention discloses a preparation method of a high-molecular fluorescent microsphere. The method includes following steps: dispersing 1 part by weight of polystyrene microspheres in 0.1-1 ml of ultrapure water; adding dropwisely the polystyrene microsphere aqueous dispersion to 3-10 ml of a polydiallyldimethylamine hydrochloride solution with a concentration being 1.0-4.0 mg/ml with stirring; continuously stirring the solution for 1-4 h; performing centrifugation and removing a supernate; performing a washing process through ultrapure water; performing a centrifugation and collecting precipitate; vibratingly dispersing the precipitate in 1-2 ml of ultrapure water; adding dropwisely the polystyrene microsphere aqueous dispersion to 5-50 ml of a marked or an unmarked polysaccharide-type polyelectrolyte macromolecule solution with a concentration being 1.0-6.0 mg/ml with stirring; continuously stirring the solution for 1-4 h; performing centrifugation and removing a supernate; dispersing a precipitate in pure water; performing a centrifugation and collecting precipitate; and dispersing the precipitate in ultrapure water to obtain polysaccharide-modified fluorescent microsphere. The high-molecular fluorescent microsphere is 1-10 [mu]m in particle size, is 350-800 nm in fluorescent excitation wavelength, and has excellent biocompatibility and stability.

The invention provides a spiropyrane photochromic coating and a preparation method thereof. The coating contains a polyurethane/spiropyrane/zinc sulfide composite multilayer photochromic material; aninner core of the coating is a zinc sulfide mesoporous nano-microsphere; an intermediate layer of the coating is a photochromic layer formed by a spiropyrane compound; a shell of the coating is polyurethane; the outer diameter of the composite microsphere is 50-350nm; the diameter of the zinc sulfide mesoporous nano-microsphere is 30-250nm; the thickness of the intermediate layer is 2-25nm; the thickness of the shell is 5-25nm. The photochromic coating prepared by the method can be used as a photochromic material or a surface color-changing layer of an optical lens; the coating is capable of changing from colorless to colored under irradiation of ultraviolet light, is also capable of rapidly fading to colorless after the ultraviolet light disappears, and has the advantages of high fatigueresistance, high stability, rapid color-changing speed and the like.

An article comprises a body having a coating. The coating comprises a Y-O-F coating or other yttrium-based oxy-fluoride coating generated either by performing a fluorination process on a yttrium-basedoxide coating or an oxidation process on a yttrium-based fluorine coating.

The invention relates to a dust removal device, which comprises a hollow shell and a partition disposed in the shell. The partition at least divides the shell into a first chamber and a second chamber. Several ceramic filter pipes are vertically arranged side by side on the partition. The dust removal device is designed as follows: the gas flows from the first chamber to the second chamber or fromthe second chamber to the first chamber and must be filtered through a ceramic filtering structure. The ceramic filtering structure comprises the ceramic filter pipes, which comprises ceramic fiber pipes used for filtration. The two-way air passage between the inside of the pipes and the outside of the pipes is realized through several air vents on the pipe wall of the pipes. The dust removal device is arranged according to the following mode: the filtered gas that enters the second chamber can flow from at least two different levels to the several ceramic filter pipes. According to the dustremoval device, the filter resources of the ceramic filter pipes can be more fully and evenly utilized, thus enhancing the filter efficiency and being helpful for improving the backwash efficiency.

The invention relates to the field of pesticide preparations and discloses a pesticide control-release composition, a nanometer formula bactericide and a preparation method of the nanometer formula bactericide. The composition contains the following components in percentage by weight: 10wt%-90wt% of alginate, 2wt%-60wt% of a nanometer silicon source, 2wt%-40wt% of multivalent cations and 5wt%-80wt% of pesticide active components. The nanometer formula bactericide provided by the invention has the function of intelligently and controllably releasing pesticide active components such as an antifungal agent, a pesticide and an herbicide encapsulated in the nanometer formula bactericide.

The invention discloses a microcapsule capable of resisting food-borne pathogenic bacteria and a preparation method thereof and aims to provide the microcapsule which can effectively inhibit the food-borne pathogenic bacteria, has good stability, can improve the stability of essential oil in a storage process, is safe and has no side effects. The microcapsule capable of resisting the food-borne pathogenic bacteria is prepared by carrying out complex coacervation by taking sunflower essential oil and olive oil as a capsule core and taking natural edible gum as a capsule wall and curing by using a curing agent genipin. The microcapsule capable of resisting the food-borne pathogenic bacteria belongs to the technical field of bacterium resistance.