455results about How to "Reduce health hazards" patented technology

A cleaning and disinfecting system for the cleaning and disinfecting of footwear or feet. The system provides for cleaning and disinfecting the bottom of the feet or footwear. An optional brush on a wand provides cleaning to upper foot areas as required. The system is automatically activated only when a person stands on the device, thereby minimizing the volume of fluid required to perform the process. Optionally, a venturi component allows the addition of a cleaning or disinfecting fluid with the cleaning solution or water. When the system is attached to a hot water line and fitted with heating elements, it can be used to remove snow from shoes and boots.

Flexographic printing plates and other relief images can be formed from a laser-ablatable element having a laser-ablatable layer that is at least 20 μm in thickness. The laser-ablatable layer includes a film-forming material that is a laser-laser-ablatable material or the film-forming material has dispersed therein a laser-ablatable material. The laser-ablatable material is a polymeric material that when heated to 300° C. at a rate of 10° C./minute, loses at least 60% of its mass to form at least one predominant low molecular weight product. The element can be imaged by ablation at an energy of at least 1 J/cm2 to provide a relief image.

A process for crosslinking polymers employs a silane crosslinker which, upon hydrolysis, produces a reduced quantity of volatile organic compound.

The invention discloses a colored solar heat reflection and heat-insulation coating. The coating is prepared from the following raw materials: polymer emulsion, titanium dioxide, functional fillers, an infrared reflection pigment, kaolin, ground calcium carbonate, a dispersing agent, a wetting agent, a defoaming agent, a thickening agent, a film-forming additive, a preservative, and water. The colored solar heat reflection and heat-insulation coating provided by the invention has the advantages that a coating film with a high reflectivity is prepared through adoption of the components, addition of the functional fillers (glass microbeads, ceramic microbeads and floating beads) which are large in refraction coefficient and high in scattering capability and reflectivity, as well as the pigment which is large in infrared reflection ratio, and application of film-forming matters and the film-forming additive, so that the coating achieves good heat-insulation performance, multiple selectable colors, excellent elasticity, high stain resistance, as well as large solar and near-infrared reflection ratios.

A cover slip material and a method of making and using the same are provided. The material comprises (a) a light transmissible polymeric backing having first and second surfaces; (b) a tack free bonding layer disposed on the first surface of the backing, the bonding layer comprising polymers selected from the group consisting of acrylate, methacrylate, and combinations thereof; and (c) a protective coating disposed on the second surface of the backing. Upon exposure to an environmentally friendly activating solvent such as terpene, d-limonene, esters of coconut oil and aliphatic hydrocarbon blends, the bonding layer acquires tacky properties causing the cover slip to adhere to a specimen previously mounted on a microscope slide.

The invention relates to a method for quickly determining gold, palladium, platinum, rhodium, iridium, silver, nickel, copper and iron in a rare and precious metal system. According to the detection principle of an inductively-coupled plasma-atomic emission spectrometry, the method comprises experimental conditions, sample treatment, working curve plotting, interference and elimination, detectionlimits and accuracy, wherein the experimental conditions comprise instrument selection, selection of analytical spectral lines, and determination of acidity of a system to be measured; the sample treatment comprises treatment and measurement of a test sample; the working curve plotting comprises preparation of a series of standard solutions, working curve plotting and calculation of analytical results; whether a spectral line of a coexistence element exists adjacent to the analytical spectral line of an element to be tested or not through the investigation and analysis of coexistence elementinterference is performed; determination is continuously performed for 11 times by using a blank solution excluding the element to be tested to obtain the detection limits and lower determination limits of the method; a precision experiment is conducted by repeatedly determining a sample for 11 times, and a standard recovery experiment of the sample is performed; and finally, compared with results obtained through the original determination method, the reliability of determined results of the method provided by the invention is further confirmed.

The invention discloses a laser electrolytic aluminum coating composition and a preparation method thereof. The laser electrolytic aluminum coating comprises the following components by weight percent: 13-28% of acrylic resin, 2-7% of nitrocellulose resin, 0-5% of styrene maleic anhydride resin, 0-4% of aldehyde ketone resin, 0-1% of auxiliary agent and 65-80% of solvent. The preparation method comprises the steps of: putting the solvent into a reaction kettle, and heating to 40-70 DEG C when stirring; putting the nitrocellulose resin into the reaction kettle, and stirring; sequentially putting the rest resins into the reaction kettle, and further stirring; after all the resins which are put into the reaction kettle are completely dissolved, putting the auxiliary agent into the reaction kettle, and cooling after dispersing to obtain the laser electrolytic aluminum coating. Compared with the prior art, the laser electrolytic aluminum coating disclosed by the invention is environment-friendly, low in cost, good in application adaptability and excellent in performance.

The invention relates to the technical field of traffic engineering, in particular to a pavement structure directly paved on a cement concrete bridge deck and a pavement method thereof. The pavement structure for the cement concrete bridge deck comprises a waterproof bonding layer, a stress absorption layer and a road surface layer, which are sequentially paved on the cement concrete bridge deck from bottom to top, wherein the waterproof bonding layer comprises a basalt gravel layer bonded on the cement concrete bridge deck through epoxy resin and a reactive waterproof binding agent layer coated on the basalt gravel layer. The invention also discloses a pavement method for the pavement structure. The pavement structure and the pavement method thereof enhance the bonding and shearing action between a pavement layer and a cement concrete slab, improve the using effect and service life of the pavement layer, reduce the temperature of mixing, transporting and paving, save energy and reduce environmental pollution; and the total thickness of the bridge deck pavement system is only 30 to 40 mm, so that the dead load of the bridge deck is greatly reduced, the pavement materials are saved and the construction cost is reduced.

The invention discloses a water quality improvement agent for aquaculture and a preparation method thereof. The water quality improvement agent is prepared from the following raw materials in percentage by weight: 5 percent to 10 percent of lactobacillus, 5 percent to 10 percent of photosynthetic bacteria, 5 percent to 10 percent of bacillus, 5 percent to 10 percent of brown sugar, 10 percent to 20 percent of activated carbon, 25 percent to 35 percent of zeolite powder, 3 percent to 5 percent of citric acid, 2 percent to 5 percent of sodium bicarbonate and 10 percent to 15 percent of calcium peroxide. According to the water quality improvement agent disclosed by the invention, organic matters in a water body of water for the aquaculture can be reduced, and the content of ammonia-nitrogen and nitrite is greatly reduced; the chemical oxygen consumption of pond bottom sludge is improved and oxygen debt of the pond bottom is alleviated; growth and proliferation of beneficial microorganismsand decomposition of organic pollutants are accelerated and the circulation of pond substances is accelerated; the proliferation of beneficial algae in a pond is accelerated so that the pond dissolved oxygen is increased; a culture water region environment is improved, healthy growth of aquatic animals is promoted, the feed coefficient is reduced and the economic benefits are increased.

The invention relates to a metallographical corrosive, a method for eroding copper and a method for displaying a metallographical organization of the copper. The method for displaying the metallographical organization of the copper comprises the following steps of: providing a copper sample; grinding the copper sample; polishing the ground copper sample; and immersing the polished copper sample into the metallographical corrosive, wherein the metallographical corrosive is a mixed solution of water, oxydol and ammonia. The metallographical corrosive prepared from the water, the oxydol and the ammonia has a favorable erosion effect to copper or copper alloy and can ensure that the display effect of the crystal boundary of the metallographical organization of the copper or the copper alloy, especially high-purity copper, is favorable.

The invention provides a method for cultivating tobacco rich in anthocyanin and an application thereof. The method comprises the following steps of recombining two confirmed genes, namely MrMYB1 and MrbHLH1 which can be used for regulating and controlling anthocyanin synthesis in red bayberry fruits, establishing an expression plasmid, screening genes capable of regulating and controlling anthocyanin synthesis by using a tobacco leaf transient expression technique, converting genes with confirmed functions into the tobacco, and cultivating tobacco rich in anthocyanin. The invention provides a method for cultivating tobacco rich in anthocyanin, so that health hazard caused by smoking is alleviated; and the method is also applicable to MYB and bHLH genes in other fruits besides red bayberry.

The invention belongs to the veterinary medicine residual analysis and immunity analysis technique field and specifically relates to an enzyme-linked immunity method and the reagent kit thereof which can discern specificity monoclonal antibodies of tylosin and tilmicosin and detect the residuals of tylosin and tilmicosin at the same time; the monoclonal antibodies in the invention is secreted from hybridoma cell strain P3C4 established by the applicant; the hybridoma cell strain is preserved in China Center of Type Culture Collection; the number of preservation of the hybridoma cell strain is CCTCC No: C200719; the invention discloses the preparation method and enzyme-linked immunity detection method of the monoclonal antibody, coating antigen and immunogen. Compared with the prior art, the monoclonal antibody prepared in the invention can discern tylosin and tilmicosin at the same time and add the detecting object in the prior art. The reagent kit and the method in the invention has the advantages of simple, convenience, swiftness, sensitivity and accuracy; furthermore, the reagent kit and method in the invention can detect the residuals of tylosin and tilmicosin in an animal edibility tissue at the same time.

The invention discloses an insulation impregnating varnish of epoxy and small solvent for grade B, F general use and a preparation method thereof, which comprises bisphenol A epoxy resin, bismaleimide tung oil anhydride, tert butyl phenolic resin 2402, acetylacetone chromium promoter, industry alcohol and dimethyl carbonate; the preparation method comprises the steps: (1) 15 to 25 portions of industry alcohol, 5 to 15 portions of dimethyl carbonate, 5 to 15 portions of tert butyl phenolic resin 2402 and 0.1 to 0.5 portion of acetylacetone chromium promoter are added into a reactor and stirred; the temperature in the reactor is enhanced to 70 DEG C under the stirring effect, and the stirring is continued until the tert butyl phenolic resin 2402 completely is dissolved; (2) the obtained solution is added with 30 to 40 portions of the bismaleimide tung oil anhydride and 20 to 30 portions of bisphenol A epoxy resin to be stirred for 1 hour at 60 DEG C, being sampled; The sampled paint liquid is even and transparent, is then cooled to room temperature so as to get the insulation impregnating varnish of epoxy and small solvent for grade B, F general use. The invention has high solid content, large paint hanging amount; once impregnating varnish and baking can meet the requirement for insulation treatment, saving energy and reducing production cost.

The invention discloses a polycarboxylate superplasticizer with a mud preventing effect. The structural general formula of the polycarboxylate superplasticizer is as shown in the description, wherein R1 is H or CH3, R2 is H or COOM, R3 is an alkyl of C1 to C3, and M is H, Na, K or NH4. The invention also provides a preparation method of the polycarboxylate superplasticizer with the mud preventing effect. The superplasticizer synthesized by use of the process is applied to concrete within the aggregate mud content range of 0-8%, and a good application effect can be obtained through direct use without physical compounding.