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A process for preparing a catalyst which has a catalytically active coating of high surface area finely divided materials and catalytically active components on an inert carrier structure. A powder mixture of the finely divided materials used is impregnated with a solution of precursor compounds of the catalytically active components. By suitable combination of the finely divided materials and the precursor compounds and appropriate management of the impregnation process, a highly dispersed deposition and adsorption of the catalytically active components is ensured on the finely divided materials. Then ai aqueous coating dispersion is produced using the impregnated powder mixture and the carrier structure is coated therewith. The coating is then dried and calcined.

Apparatus for ophthalmic surgery, especially non-penetrating filtration surgery, comprising a laser source that ablates sclera tissue at steps of intermediate thickness. Optionally, the beam is scanned using a scanner and its results viewed using an ophthalmic microscope.

The invention discloses a triaxial test system and a triaxial test method for unsaturated soil multi-field coupling, and relates to the field of geo-technical testing under an environmental load. The test system is characterized in that a soil sample is arranged in a triaxial pressure chamber; a confining pressure application/volume change monitoring unit, an axial force application unit, a matrix suction application unit, a temperature control unit, a chemical solution cycle permeation unit and an axial displacement measurement unit are connected/communicated with the triaxial pressure chamber respectively so as to apply each set load to the soil sample; a data acquisition unit is connected with the confining pressure application/volume change monitoring unit, the axial force application unit, the matrix suction application unit, the temperature control unit, the chemical solution cycle permeation unit and the axial displacement measurement unit respectively so as to acquire all data. The system and the method are applied to moisture desorption/absorption, solidification, non-drained shear and drained shear tests of unsaturated soil under different chemical actions and at different temperatures, and the combined determination of temperature, hydraulic power, mechanical and chemical coupling behaviors of the unsaturated soil is achieved.

The invention discloses a multifunctional matrix soilless culture method and device. The method comprises the following steps of: filling culture matrix into a porous culture container; placing the porous culture container filled with the culture matrix into a culture bed groove; reserving gaps between the inner wall of the culture bed groove and the porous culture container to form a root exogenous space; planting plants on the porous culture container with the culture matrix; covering the upper opening of the culture bed groove with a covering substance; reserving a plant fixing hole or growth port at the position, wherein the plant is planted, on the covering substance, so that a heat-preserving, a humidity-preserving and black environment is formed in the culture bed groove; and supplying water or nutrient solution to the culture matrix in the porous culture container, wherein in the growth process of the plant, the root grows to permeate the gaps of the porous gap culture container to grow into and out of the culture container and in the space in the bed groove. By the soilless culture method and the soilless culture device, good growth environment and balanced supply of nutrients and water of the root can be guaranteed; and different irrigation modes are suitable, such as the soilless culture method for culturing various crops, the matrix culture method and the matrix and water composite culture method.

A coated glass mat comprises a glass mat substrate having non-woven glass fibers and a coating which essentially uniformly penetrates the glass mat substrate to desired fractional thickness of the coated glass mat. The coating imparts a tensile strength to the coated glass mat which on average is at least 1.33 times greater than the tensile strength of the glass mat substrate without the coating. In example embodiments, penetration of the coating into the glass mat substrate preferably extends to a depth of from twenty five percent of a thickness of the coated glass mat to seventy five percent of the thickness of the coated glass mat. Moreover, a non-coated thickness of the coated glass mat is sufficiently thick for bonding purposes with, e.g., a gypsum slurry or other core materials such as thermoplastic or thermosetting plastics. The coating has a porosity in a range of from 1.3 CFM to 5.0 CFM, e.g., the coating comprises a coating blend which provides the coated glass mat with a porosity sufficient to allow water vapor to escape from a gypsum slurry when heated. The coating is preferably a coating blend comprised of water, latex binder, inorganic pigment, and inorganic binder.

The invention relates to the field of lithium-ion batteries, in particular to a non-aqueous electrolyte and a lithium-ion battery employing the same. The non-aqueous electrolyte comprises a lithium salt, a solvent and an additive, wherein the additive comprises a sulphonate quaternary ammonium salt and an SEI film-forming additive. By the non-aqueous electrolyte, the wettability of the electrolyte on an active material pole piece is significantly improved; a solid electrolyte membrane which is small in impedance, uniform and compact is generated on the surface of the pole piece; and the dynamic performance of the pole piece is improved, so that the battery has good cycle performance when the pole piece is highly compacted or at a low temperature.

The invention belongs to the technical field of hydrofining catalysts, and particularly relates to a hydrofining catalyst carrier and a preparation method thereof as well as a hydrofining catalyst using the carrier and a preparation method of the hydrofining catalyst. The preparation method of the carrier comprises the steps of: mixing modified diatomite, alumina powder, a bonding agent and a pore-enlarging agent, then kneading and forming, drying and roasting to obtain the carrier, and is characterized in that the modified diatomite is prepared by steeping diatomite in alkali liquor and neutralizing in acid liquor and then carrying out water washing and filter pressing, wherein the amount of impurities on the surface and in pore spaces can be greatly reduced, thereby being beneficial to load of active ingredients; and the hydrofining catalyst prepared by using the carrier is applicable to removal of organic sulfides and unsaturated hydrocarbons in light naphtha, liquefied gas, natural gas and oil refining dry gas.

The invention discloses a cleaning agent which has simple preparation method, low cost and low corrosion rate on substrate material and metallic wiring, and no pollution on environment and is used for removing the residues of photoresist. According to the weight percentage, the cleaning agent comprises the following raw materials: 1%-15% of surfactant, 5%-40% of organic amine, 5%-30% of organic solvent, 0.1%-5% of chelating agent, 0.01%-5% of corrosion inhibitor and residual quantity of pure water.

A process of manufacturing a membrane electrode assembly comprises the steps of preparing an electrode-forming catalyst ink comprising porous aerogel supported catalyst and an electrolyte; depositing the prepared catalyst ink on a polymer film to form one or more catalyst layers; hot-pressing the one or more catalyst layers deposited on the polymer film at a temperature that is higher than a glass transition temperature of the electrolyte; decreasing the temperature of the hot-pressed catalyst layer and the polymer film; and removing the polymer film from the one or more catalyst layers.

The invention relates to a preparation method for a high-temperature-resistant ultra-thin antenna window and belongs to the technical field of ceramic-based composite materials. According to the method, the high-temperature-resistant ultra-thin antenna window is prepared by a series of processes of preparation of a perform, repeated dipping of high-purity silica sol, improvement of rigidity of the composite material, machining, washing, pickling, carbon heat removal, secondary repeated dipping of the high-purity silica sol and ceramic thermal treatment. The ultra-thin antenna window prepared by the method disclosed by the invention can meet a requirement on high-temperature resistance and is also high in rigidity and high in machinable property.

The present invention provides a separator in which an electrolyte-soluble polymer, which is soluble in liquid electrolyte, is coated on one or both surfaces of the separator, as well as an electrochemical device including the separator. Also, the present invention provides a method for producing an electrochemical device, comprising the steps of: (a) coating an electrolyte-soluble polymer, which is soluble in liquid electrolyte, on one or both surfaces of a separator; (b) interposing the separator produced in the step (a) between a cathode and an anode so as to assemble an electrochemical device; and (c) injecting a liquid electrolyte into the electrochemical device produced in the step (b). The electrochemical device, such as a lithium secondary battery, produced by the inventive method, has an improved safety while deterioration in the battery performance is minimized.

The present invention belongs to the technical field of 3D printing materials, and relates to a 3D printing gypsum ink, and the 3D printing gypsum ink is prepared from the following components by weight: 60% to 93% of gypsum powder, 2% to 20% of filler, 4% to 18% of a modifying solvent and 0.5% to 5% of a coagulant. The present invention also discloses a preparation method of the 3D printing gypsum ink, and all the raw materials are mixed and stirred evenly to obtain the 3D printing gypsum ink. The problems of low strength, poor mobility, coarse particles, poor toughness and high cost in the prior art can be solved, and an economical 3D printing forming material with industrial potential, high speed, good precision and low use cost is developed.

This invention is a chemical wood pulp productive method. It contains following steps: 1) To soak, Put the thin piece wood plate into the soak liquid container, the soaking temperature is 50-90 deg.C. Soaking time is 15-50 minutes; the soak liquids use part or whole boiling liquid. 2) To relieve squeeze and press; relieve the pressed wood plate, the pressing ratio is 3-6:1. 3) To take-out lignin: put the pressing wood plate and its soak liquid into the boiler, boiling them to do the reaction of take-out lignin.

The invention discloses a method for using thin-wall bamboo materials to prepare bamboo scrimbers. The method includes the steps that alkali is adopted for stewing thin-wall bamboo sheets, and then defibering, gum dipping, laying and hot pressing are carried out in sequence; NaOH is used for stewing the bamboo sheets, and the bamboo sheets are processed by lipase and then subjected to defibering,wherein by means of the procedures above, the defibering effect of bamboo bundles is obviously improved by 35% or above, bamboo green and tabasheer on the surfaces of the bamboo materials are effectively subjected to chemical erosion, the purpose of breaking wax layers and silicon layers is achieved, and the effect of improving gluing is achieved. A waste liquid generated after stewing is used fordiluting a glum liquid, and the problem of discharging the waste liquid is solved; by adopting a vacuum pressurizing dipping mode, even permeation of an adhesive in the bamboo materials is achieved,consumption of the adhesive is reduced, the production cost is reduced, efficient utilization of the thin-wall bamboo materials is achieved, and the environment is protected. The physical and chemicalstrength of the scrimbers are obviously improved, the horizontal shearing strength is improved by 25% or above, the thickness swelling rate of water absorption is reduced by 100% or above, the bending strength is improved by 20% or above, and the elasticity modulus is increased by 15% or above.

The invention relates to citrus Pu'er tea and a preparation method thereof. The preparation method of the citrus Pu'er tea comprises the following steps: (1) pretreating citrus: washing the citrus cleanly, drying in the air, opening a mouth at the top of the citrus to obtain a top cover, digging out pulp in the citrus, and keeping a citrus shape for standby application; (2) pretreating Pu'er tea: adjusting the water content of the Pu'er tea to 18%-35%; (3) loading the Pu'er tea into the citrus, and closing with the top cover; and (4) drying. The citrus Pu'er tea is black and moist in peel color and luster, auburnish red and bright in tea liquid color and luster, mellow and strong in taste, and strong but not astringent.