38results about How to "Well through" patented technology

A viewing window of electromagnetic shielding is composed of single layer or multiple layer of metal wire mesh, single layer or multiple layer of optical film in quantum well structure and transparent backing material as each layer of metal wire mesh is fabricated by metal thin wire flared-out in single set or multiple set, any two pieces of thin wires in each set of metal thin wire will be in the same plane as parallel to each other; optical film will be metal dielectric media multilayer film contained single layer of metal film or multiple layer of metal film and it is structured by inducible layer which consists of two layer of different transparent media films laid at two sides symmetrically and functional layer which will be compounded in between the inducible layers laid symmetrically as well as it will be embedded on the surface of microwave cavity to be closely compounded with the microwave cavity.

An electromagnetic shielding inspection window composed of single or multiple metal mesh and single-layer or multiple-layer thin-film optical coating of quasi-semiconductor quantum well structure, the invention is characterized in that, each layer of metal mesh is formed by single group or multiple groups of stretched filaments, any two threads of the filaments in each filament group are in the same plane and parallel from each other, the perpendicular distance between the two adjacent filaments is no greater than the 1 / 2 times of the required cut-off microwave wavelength.

The invention belongs to the technical field of macromolecular materials and water treatment, and discloses an MBBR filler whose components include a hydrophilic base material, a toughening agent, light calcium carbonate, a density regulator, a biological nutrient salt, a biological active agent and a biological Enzyme activator. The toughening agent is copolymer grafted maleic anhydride; at the same time, hollow glass microspheres are selected as the density regulator, which not only solves the high density of the inorganic filler of the hydrophilic filler, but also solves the interface problem between the inorganic filler and the base material. The proposal also discloses its preparation method, and the prepared MBBR filler has better hydrophilicity and bio-affinity than polyethylene fillers. Used in MBBR process, COD removal rate> 85%, ammonia nitrogen removal rate> 95%, effluent COD<30mg / L, suitable for various types of sewage treatment with different carbon / nitrogen and ammonia / nitrogen ratios, is a high-efficiency, Highly effective and versatile MBBR filler.

According to one embodiment of the present invention, a terahertz wave concentrating module can comprise: a first lens for changing a terahertz wave, which is emitted while a terahertz Bessel beam penetrates an object to be inspected, so as to have a small angle; and a second lens for concentrating, on a detector, the terahertz wave having passed through the first lens.

The invention discloses a preparation method of a self-assembled composite nanofiltration membrane for water softening. According to the method, polyethyleneimine is taken as a polyelectrolyte cation layer, and polydopamine is taken as a polyelectrolyte anion layer; by relying on the electrostatic interaction between opposite charges and the strong adhesion property of the polydopamine, a layer-by-layer self-assembly technology is used for preparing the (polyethyleneimine / polydopamine / polyethyleneimine) / polyethersulfone composite nanofiltration membrane on a polyethersulfone ultrafiltration membrane by means of alternate deposition. The composite nanofiltration membrane provided by the invention is only provided with one polyelectrolyte double-layer and one active layer; the preparation method is simple to operate, the prepared membrane is controllable in thickness and good in stability, and preparation cost is lower. The pure water permeability coefficient of the composite nanofiltration membrane is 7.15L / m<2>.h.Mpa, and the molecular weight cut-off of the composite nanofiltration membrane is 480Da, so that the composite nanofiltration membrane belongs to the category of nanofiltration membranes. The maximum retention rates of the composite nanofiltration membrane for Mg<2+> and SO4<2-> in water reach up to 97.5%, but the retention rates of the composite nanofiltration membrane for Na<+>, K<+> and Cl<-> are only about 36.2%, so that the composite nanofiltration membrane can effectively achieve the retention of Mg<2 +> and SO4<2-> ions in the water, and accordingly has better application prospect in the aspect of water softening.

The invention provides a double-glass photovoltaic component window and a manufacturing method thereof. The double-glass photovoltaic component window comprises multiple double-glass photovoltaic components and an aluminum frame, each double-glass photovoltaic component comprises ultra-white flat transparent tempered glass, a PVB composite film, a solar cell pack, a PVB composite back film, middle-layer glass and back glass sequentially from outside to inside; an interval between each middle-layer glass and the corresponding back glass, two vertical supporting frames of the aluminum frame are provided with a row of equidistant mounting holes correspondingly in the horizontal direction, a rotary part is arranged in each mounting hole, each rotary part is fixedly connected with the outermost layer of the double-glass photovoltaic components, and the double-glass photovoltaic components are parallelly arranged in the aluminum frame by identical angles, the double-glass photovoltaic component window is high in light transmittance and good in sealing effect, can collect more solar energy and has an automatic cleaning function, air bubbles in the process of manufacturing can be reduced greatly, and finished product rate is increased; the double-glass photovoltaic component window is suitable for severe environment large in temperature difference.

The invention relates to the field of sensors, and discloses a sandwich-type large-area high-density flexible array sensor and a preparation method thereof. The sensor includes an upper plate, a lower plate, and an array pressure-sensitive layer and an insulating adhesive layer arranged between the upper and lower plates. , the upper and lower plates are provided with corresponding array electrodes and wires, the array electrodes have a row-column structure, each row of electrodes is connected by wires, and the position of the insulating adhesive layer corresponding to the pressure-sensitive layer of the array is hollowed out. The preparation method includes the following steps : The upper and lower pole plates are prepared by screen printing; the pressure-sensitive composite material is prepared; the uncured pressure-sensitive composite material is printed on the array electrodes on one of the pole plates by the screen printing process to form an array pressure-sensitive layer; Bond the upper and lower plates with insulating glue. The invention has simple process, high efficiency and low cost, and the prepared large-area high-density flexible array sensor has high sensitivity, good stability and large pressure sensing range.

The invention discloses the preparation and application of flavonol as a brain targeting synergist. The inventors have found in long-term experimental research that some flavonol compounds, especially kaempferol, rutin, troxerutin, myricetin, hesperidin, and their hydroxy derivatives, especially their glycosides, esters, ethers Derivatives, can be very good to promote the therapeutic drug molecules ginsenoside, stilbene glycoside, resveratrol, levodopa, edaravone, vinpocetine, nicergoline, cytosine When choline, oxiracetam, etc. enter the brain tissue, the concentration of the drug in the brain tissue is greatly increased without increasing its blood concentration, and the curative effect of the drug is effectively improved.

The invention relates to the technical field of cellulose plates, in particular to a scented cellulose and a method for preparing a single-color plate using the scented cellulose. The scented cellulose consists of the following raw materials in parts by weight: 80-120 parts by weight of cellulose acetate, plasticizer 20~40 parts, 0.01~0.1 parts of fragrance agent and 0~1 part of pigment powder. A method for preparing a single-color plate using the above-mentioned scented cellulose, comprising the following steps: A, adding the above-mentioned cellulose acetate and plasticizer in the blender, stirring at room temperature for 18-30 hours at a speed of 60-100 r / min, Obtain the mixture; B, put the above mixture into a twin-screw extruder, melt and extrude it, cool it to 30~40°C, and cut it into pellets to obtain the rubber material; C, put the above rubber material and the above weight parts of flavoring agent and pigment powder into The single-screw extruder is melted and extruded to obtain a single-color plate of flavored cellulose. The scented cellulose monochromatic plate prepared by the invention has strong scent persistence.

The invention relates to a method for cleaning a circumferential surface of a cylinder of a printing press. The method can realize improved cleaning t during a short time. In order to clean the circumThe invention relates to a method for cleaning a circumferential surface of a cylinder of a printing press. The method can realize improved cleaning t during a short time. In order to clean the circumferential surface, a cleaning fluid is first applied to the circumferential surface (15). In order then to remove contaminants (17), the contaminants (17) are broken up mechanically after the cleaningferential surface, a cleaning fluid is first applied to the circumferential surface (15). In order then to remove contaminants (17), the contaminants (17) are broken up mechanically after the cleaning fluid is applied and before a cleaning apparatus (6) acting on the circumferential surface (15) is set into operation.fluid is applied and before a cleaning apparatus (6) acting on the circumferential surface (15) is set into operation.