89results about How to "Efficient reflection" patented technology

To provide a thin light box employing a light source of strong directivity such as an LED, or a light box in which occurrence of unevenness in surface illuminance is suppressed even when the number ofLEDs is reduced by a factor of 4-9 as compared with prior art. ¢MEANS FOR SOLVING PROBLEMS! The light box (1) comprises a plurality of spot light sources (4), and a light reflector (21) having recesses (22) surrounding the spot light sources (4), respectively. The spot light sources are inserted into insertion holes (23) formed in the bottom of the containing recesses (22), respectively. When theincident angle of light exiting the spot light source (4) is 0 DEG and the spot light sources (4) are spaced apart by 350 mm, the illuminance is 15000 cd/m<2> or less and the light exiting the spotlight source (4) is reflected partially or entirely on the inner surface of the containing recesses (22) before offering illumination.

The present invention discloses a pipeline operation state detection and assessment system and method. The system comprises a data collection center, a state assessment center and an information feedback center. The data collection center mainly comprises a sensor system, a GIS cloud service system and a historical data service system. The data collection center is mainly configured to collect real-time operation work condition data, historical fault data and geographic space data of a pipeline. The state assessment center mainly comprises a database system, an ARM core processor and an assessment center, and is mainly configured to perform real-time assessment and analysis of the operation work condition of the pipeline and publish an assessment result to an information feedback center. The information feedback center mainly comprises an alarm system, a client terminal and a historical data generation system, and is mainly configured to perform real-time feedback of fault alarm and information. The pipeline operation state detection and assessment system and method can perform real-time detection of the operation work condition of the pipeline, can perform intelligent assessment and analysis of the operation work condition and can be widely applied to operation detection assessment of various pipelines.

The invention provides a filtering radome. The filtering radome comprises a filtering assembly, and the filtering assembly comprises a dielectric layer and two structural bodies, of metamaterials, arranged opposite to each other in the external or internal surface of the dielectric layer. Each structural bodies of metamaterials comprises a substrate, first resonators and second resonators; the substrate includes a first surface and a second surface opposite to the first surface; the first resonators are arranged in the first surface in an array, and each first resonator comprises a first resonator microstructure; the second resonators are arranged in the second surface in an array, and each second resonator comprises a second resonator microstructure; and each second resonator is oppositeto one first resonator and coupled to the first resonator mutually. Thus, electromagnetic waves within the working frequency band can be transmitted in high efficiency, and electromagnetic waves beyond the working frequency band can be reflected in high frequency.

The invention discloses a Linux network card driving controller of a dual-network redundant Ethernet controller. The Linux network card driving controller comprises a system bus protocol control module, a control status register module, a receiving transmission control module, a receiving data buffer zone, a redundant channel switching control module, and a MAC protocol control module. The systembus protocol control module is configured to receive a system bus and is connected with the control status register module and the MAC protocol control module; the control status register module connected with the receiving data buffer zone and the redundant channel switching control module by the receiving transmission control module is used for receiving and sending a GMII interface signal; andthe MAC protocol control module connected with the control status register module and the receiving transmission control module is used for receiving and sending an MII interface signal through a first PHY management module to realize MAC layer protocol control during data communication. According to the invention, the Linux network card driving controller has the high reliability; and accurate and efficient allocation, utilization and recycling of the memory resource buffer zones and descriptors are realized.

The invention discloses a long-acting high-brightness light-reflection sheet and a preparation method thereof. The light-reflection sheet comprises a base layer and a light-reflection layer coating the surface of the base layer. The outer surface of the light-reflection layer is also coated with a fluorescent layer comprising noctilucence microcapsules. The preparation method comprises carrying out aluminium evaporation on the base layer to form the light-reflection layer; coating the surface of the light-reflection layer with transparent resin comprising the noctilucence microcapsules to form the fluorescent layer; and coating an antioxidation film protection layer on the fluorescent layer. Through adding the fluorescent layer to the light-reflection surface, the light-reflection sheet is allowed to store optical energy and can release bright visible light for a period after entering an absolute black environment, and thus the light-reflection sheet is wider in suitable application range.

The invention provides a method for determining the influence range of abnormally high values of sampling points of soil heavy metal content in a mining area, and belongs to the technical field of environmental assessment of a mining area. The method includes the steps of extracting abnormally high value points from various heavy metal content data of each sampling point by using a three-fold standard deviation method, and respectively generating Voronoi diagrams of all sampling points and the abnormally high value points; taking the sampling points having the common Voronoi edges with a Voronoi polygon where the abnormally high value points are located as first-order neighboring points of the corresponding abnormally high value points; determining a dynamic buffer radius of each abnormally high value point according to a heavy metal content attenuation coefficient; and taking the intersection of the abnormally high value point Voronoi diagram and a buffer taken as the influence rangeof the abnormally high value points. The method of the invention retains the influence of the abnormally high value points on the soil heavy metal content in the local area nearby, also avoids the mutual interference between the influence areas of different abnormal high value points, effectively improves the spatial interpolation precision of the soil heavy metal content and more accurately reflects the soil heavy metal pollution near the mining area.

The invention relates to a reflective broadband 1/4 wave plate. The reflective broadband 1/4 wave plate comprises a substrate (5); an alumina film (4), a silver film (3), an alumina film (2) and a silicon oxide film (1) are orderly formed on the substrate (5) in a plating way; a rectangular groove grating is etched out in the silicon oxide film (1); the period of the grating is 1178-1188nm, the etching depth is 2517-2527nm, and the duty ratio is 0.255. Compared with the prior art, the reflective broadband 1/4 wave plate can be manufactured by use of the optical holographic recording technology or an electron beam direct writing device in combination with the micro-electronic deep etching process and the coating technology, is highly available in raw materials, low in manufacturing cost, and has important practical prospect.

The invention provides an ultraviolet light emitting diode with an inverted structure, which comprises a substrate, an AlN nucleation layer, an un-doped AlN or AlaGa1-aN buffer layer, an n-type AlbGa1-bN region, an AlcGa1-cN-AldGa1-dN multi-quantum well active region, a BN electronic barrier layer, an AleGa1-eN-BN Bragg reflector structure p-type region, a heavily-doped p-type GaN layer, an ITO conductive layer, a p-type ohmic electrode arranged on the ITO conductive layer and an n-type ohmic electrode arranged on the n-type AlbGa1-bN layer sequentially from bottom to top. The n-type ohmic electrode and other regions except the n-type AlbGa1-bN layer are insulated. According to the ultraviolet light emitting diode with an inverted structure, the light emitting efficiency of the ultravioletLED can be effectively improved, and the threshold voltage and the resistivity of the ultraviolet LED can be greatly reduced.

The invention relates to a commercial oven hearth. The commercial oven hearth comprises a hearth wall and a combustor placed in the center of the bottom of the heart, and is characterized by also comprising a hot air pipe, wherein the hearth wall is a hollow wall formed by an outer wall and an inner wall made of microcrystalline glass; a gas inlet and a gas outlet are formed in the outer wall; and the hot air pipe is connected with the gas outlet and an air inlet at the lower end of the combustor, and is used for leading the gas preheated by the hollow wall into the combustor. The commercial oven hearth has the benefits that room-temperature gas entering the hollow wall is preheated by high-temperature heat diffused by the inner wall of the hearth and then enters the combustor to participate in combustion, so that the heat efficiency is improved; the air-cooled energy can guarantee that the microcrystalline glass can adapt to naked flame combustion; the smooth finish of the inner wall made of the microcrystalline glass is greatly improved, so that cleaning is facilitated, less heat energy can be absorbed, more heat energy can be reflected, and the heat efficiency is improved; the attractiveness of an oven is improved; and processing and assembling efficiency is higher.

The invention discloses composite heat-insulating paint for exterior walls and a preparation method of the composite heat-insulating paint. The composite heat-insulating paint is prepared from purified water, an inorganic dispersing agent, a defoaming agent, texanol ester alcohol, rutile titanium dioxide, nano-titanium silicate microporous powder, porous expansible microspheres, infrared reflection nano-pigment, a self-crosslinking fluorocarbon emulsion, a photocured elastic emulsion, a macromolecular porous polymer, a nano-zirconium dioxide dispersing agent, a nano-titania colloid, a nano-silica solution, a nano-silver antibacterial agent and a PU thickening agent. The heat-insulating paint has efficient heat radiation reflection performance, good heat insulation and self-cleanness, lasting heat, good decorative performance, wide applicability and great environment friendliness, and a coating is long in service life.

The invention relates to a preparation method for a polyester fiber with efficient performance of light absorption and heat emission. CuFe2O4@SiO2 powder, polyether and polyester reaction materials are mixed and treated successively by an esterification reaction, condensation polymerization and melt spinning, so that the polyester fiber with the efficient performance of light absorption and heat emission is obtained; the CuFe2O4@SiO2 powder is of a core-shell structure, wherein a nuclear layer is CuFe2O4, and a shell layer is SiO2; and an abnormal-shaped hollow spinneret plate is used in meltspinning. The preparation method provided by the invention has the beneficial effects that a technology is simple, modified production can be conducted on an existing device, cost increase is less, and the method is applicable to large-scale production; and compared with a conventional polyester fiber, the fiber prepared finally is good in the performance of light absorption and heat emission, good in mechanical performance and good in electric conduction performance, and a fabric obtained through further processing is good in thermal insulation performance.

The invention relates to a pavement body which is laid and hardened on a road floor or a roadbed. The pavement body has a paving matrix. Coating materials are coated on the surface of paving matrix. The coating materials have at least black pigment containing perylene, white pigment and pigment development.

The invention relates to a butterfly directional antenna used for a borehole radar, and belongs to the design field of the borehole radar. The butterfly directional antenna comprises a metal butterfly antenna sheet whose tail ends are arched, a dielectric material casing, an arched reflecting plate, tail end loaded resistor and capacitor, a coaxial feed line and an air through hole; the dielectric material casing is cylindrical, the butterfly antenna sheet is buried in the physical center, and the resistor and capacitor loaded in the tail end and connected in series are connected to the arched reflecting plate; the arched reflecting plate is arranged in the side surface of the dielectric material casing, and conformal with the casing; the air through hole penetrates two end surfaces of the dielectric material casing, and serves as a wire through channel; and the coaxial feed line is connected to a feed port of the metal butterfly antenna sheet. The antenna of the invention is small in the total size, adapted to the borehole shape, wide in the working frequency band, capable of matching a signal source, and is high in waveform and orientation.

The invention relates to an infrared-reflection nanometer titanium dioxide powder coating and a preparation method thereof. The powder coating comprises, by mass, 30-40% of an infrared-reflection nanometer titanium dioxide composite material, 25-30% of thermosetting acrylic resin, 25-30% of thermosetting polyester resin, 5-10% of blocked diisocyanate, 1-2% of a leveling agent and 0.5-1% of an antifoaming agent. The preparation method comprises the following steps: A, adding nanometer raw materials into a stirrer to obtain the infrared-reflection nanometer titanium dioxide composite material; B, adding the thermosetting acrylic resin, the thermosetting polyester resin, the blocked diisocyanate, the leveling agent and the antifoaming agent into the stirrer, carrying out high-speed stirring in the stirrer, and then adding the composite material obtained in step A to obtain a mixture; C, adding the mixture into a twin-screw extruder, and granulating and cutting the mixture to obtain masterbatches; and D, crushing and sieving the master batches to obtain the infrared-reflection nanometer titanium dioxide powder coating. The infrared-reflection nanometer titanium dioxide powder coatingcan efficiently reflect solar infrared heat radiation, and meets the requirement of long-term outdoor natural environment erosion.

The invention provides an excimer lamp, wherein an ultraviolet reflection membrane is capable of transmitting the infrared light and the temperature difference of a discharging container and the ultraviolet reflection membrane is reduced and the ultraviolet reflection membrane is prevented from being peeled and the radiation amount of the excimer light is kept at preset range for long time. The excimer lamp (10) comprises: a discharging container (11) formed by silicon dioxide glass with discharge space and a pair of electrodes (12, 13) in the silicon dioxide glass of the discharging container (11) wherein the discharge space (S) is filled with xenon-133 gas and the excimer discharge happens in the discharge space (S). Exposed on the inner surface of the discharging container (11) of the excimer discharge, the ultraviolet reflection membrane is composed of ultraviolet scattered particles containing silicon dioxide particles and the transmissivity is more than 10% when the light of wavelength 4560nm transmits the ultraviolet reflection membrane and the transmission thickness is 1mm.

The invention provides a filtering antenna cover. The filtering antenna cover comprises a filtering assembly, wherein the filtering assembly comprises a dielectric layer and a superjunction structuralbody, the superjunction structural body is arranged on an inner surface or an outer surface of the dielectric layer, the superjunction structural body comprises a substrate, a plurality of first resonators and a plurality of second resonators, the substrate is provided with a first surface and a second surface which are opposite to each other, the plurality of first resonators are arranged on thefirst surface in an array way, each first resonator comprises a first resonant body microstructure, the plurality of second resonators are arranged on the second surface in an array way, each secondresonator comprises a second resonant body microstructure, and each second resonator and each first resonator are opposite to each other and are coupled to each other. By the filtering antenna cover,high-efficiency transmission of an electromagnetic wave in a working band and high-efficiency reflection of an electromagnetic wave outside the working band can be achieved, meanwhile, the filtering antenna cover is simple in structure and is easy to fabricate, and the fabrication cost is further reduced.

In a photovoltaic module (1) comprising a plurality of electrically interconnected solar cells (2) embedded in an encapsulation film (5) at least on one side and arranged at a distance from one another, and, if appropriate, a rear-side film (6) and a light-transmissive cover plate, light-guiding films forming prism-like structures (4) are integrated in regions of the photovoltaic module (1) that are free of solar cells (2) and the prism-like structures (4) and complementary air and gas pockets (8) are arranged alternately. The prism-like structures (4) of the light-guiding films are arranged in such a way that light impinging on the light-guiding, prism-like structures (4) is guided in the direction of the solar cells (2). An encapsulation film (5) is arranged on both sides of the solar cell and the light-guiding film forming prism-like structures (4) is arranged within the encapsulation film (5), and the light-guiding films forming prism-like structures (4) are covered, if appropriate, by a transparent polymer film (6, 12).

The present application provides a simulation modeling method and device for unconventional emergencies. The method comprises the following steps: acquiring a first attribute of a bearing entity, acquiring a second attribute of an external factor that can influence the development of the bearing entity, acquiring a changing relationship of the first attribute with time, and acquiring an association relationship between the first attribute and the second attribute, wherein there are a plurality of first attributes and a plurality of second attributes; determining a state variable, a rate variable, an auxiliary variable and an exogenous variable according to the first attribute and the second attribute; according to the time-varying relationship of the first attribute and an association relationship between the first attribute and the second attribute, constructing the state variables, rate variables, exogenous variables and auxiliary variables, and generating a simulation model of unconventional emergencies. Embodiments of the present application can efficiently and dynamically reflect unconventional emergencies through dynamic simulation modeling, and cross-disciplinary and cross-disciplinary dynamic simulation research on unconventional emergencies evolution intervention can be carried out.