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240 results about "Surface brightness" patented technology
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In astronomy, surface brightness quantifies the apparent brightness or flux density per unit angular area of a spatially extended object such as a galaxy or nebula, or of the night sky background. An object's surface brightness depends on its surface luminosity density, i.e., its luminosity emitted per unit surface area. In visible and infrared astronomy, surface brightness is often quoted on a magnitude scale, in magnitudes per square arcsecond in a particular filter band or photometric system.
Method of detecting fruit surface defect based on low pass filter
InactiveCN101984346AAvoid complexityAdaptableCharacter and pattern recognitionOptically investigating flaws/contaminationSurface brightnessLow-pass filter
The invention discloses a method of detecting fruit surface defects based on low pass filter. Binary mask image B' is constructed based on B component of fruit colorful image. R component f(x, y) of removed background is obtained by the dot product of B' and R component. Central transformation of f(x, y) is performed to obtain f'(x, y) and discrete Fourier transformation of f'(x, y) is performed to obtain F(u, v). Low frequency component G(u, v) is obtained by the multiplication of F(u, v) and low pass filter H(u, v). g(x, y) is obtained by negative discrete Fourier transformation of G(u, v). i'(x, y), which is the surface brightness image of f(x, y), is obtained by the multiplication of g(x, y) and the function of (-1)x + y. Homogenization brightness image f''(x, y) is obtained by the division of f(x, y) and i'(x, y). Fruit surface defects are detected by single threshold method of f''(x, y). Fruit surface defects are easily detected in the invention by single threshold method, wherein homogenization correction of fruit surface brightness is carried out. The method of the invention overcomes the complexity of conventional defect inspection algorithm and is free of considering the sizes and shapes of fruits to be detected, thus is better adjusted than standard ball brightness adjustment method. The images are acquired by a single camera, thereby avoiding the problem of low processing speed due to the information fusion of images from a plurality of cameras.
Owner:ZHEJIANG UNIV
Liquid crystal display device
ActiveUS20090284688A1Simple processReduce the number of partsOptical waveguide light guideNon-linear opticsSurface brightnessLiquid-crystal display
A liquid crystal display device which can make the surface brightness of an edge-light-type backlight uniform is provided. The liquid crystal display device includes a liquid crystal display panel and a backlight which radiates light to the liquid crystal display panel. The backlight includes a light guide plate which is arranged on a back side of the liquid crystal display panel, a light source arranged on an outer peripheral portion of a first main surface of the light guide plate which faces the liquid crystal display panel in an opposed manner, and a reflection sheet which is arranged on a back side of the light guide plate as viewed from the liquid crystal display panel. The light guide plate is made of a transparent resin having a refractive index of 1.53 or less. On a surface of the light guide plate opposite to the first main surface, a second main surface which is substantially parallel to the first main surface and a plurality of inclined surfaces which are inclined at a preset angle with respect to the second main surface are formed. An angle of the inclined surface positioned near a position at which light from the light source is incident and an angle of the inclined surface positioned remote from the position at which the light from the light source from the light source is incident differ from each other.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD
Titanium-based amorphous brazing alloy foil strip for brazing and preparation method for foil strip
InactiveCN102430874ABright surfaceNeat edgesWelding/cutting media/materialsSoldering mediaSurface brightnessBraze alloy
The invention provides a titanium-based amorphous brazing alloy foil strip for brazing and a preparation method for the foil strip. Components of the brazing alloy foil strip by percentage include 35-50% of Ti (titanium), 25-35% of Zr (zirconium), 10-24% of Cu (copper), 5-15% of Ni (nickel) and 0.5-8% of Co (cobalt). The method for preparing the brazing alloy foil strip includes the steps: weighing raw materials according to the proportion to prepare ingredients; placing the ingredients into a crucible and smelting the ingredients for at least three times in a high-purity argon state to obtain brazing alloy ingots; crushing the brazing alloy ingots and then placing the crushed brazing alloy ingots into a quartz tube; pumping a furnace chamber into high vacuum and then charging high-purity argon; turning on a copper roller power supply and setting the range of rotating speeds; and heating the quartz tube, spraying melts in the quartz tube onto a copper roller rotating at a high speed and forming the titanium-based amorphous brazing alloy foil strip under the condition of quenching. The brazing alloy foil strip has the advantages of surface brightness, uniformity of composition and the like, the negative effects of eutectic composition brazing alloy brittleness and over-high welding temperature on base metal can be avoided, and assembly and gap filling are easier when complex structural components are brazed.
Owner:BEIJING UNIV OF TECH
Diffractive security element comprising a half-tone picture
A diffractive security element has a half-tone image comprising diffractive structures in a reflection layer, which are embedded in a layer composite between a transparent embossing layer and a protective lacquer layer. The half-tone image is divided into image elements of at least one dimension less than 1 mm, wherein the surface of each image element is divided up into a background field and an image element pattern. The proportion of the image element pattern to the surface of the image element determines the surface brightness of the half-tone image at the location of the image element. The background field has a first diffractive structure from which the image element pattern differs by its light-modifying effect. Pattern strips of a width of up to 0.3 mm additionally extend over the surface of the half-tone image. The pattern strips occupy a small proportion of the surface of the background fields and / or the image element patterns and produce coloured strips on the half-tone image.
Owner:OVD KINEGRAM AG
Sea fog all-time all-weather inversion method based on multispectral weather satellite information
InactiveCN103293084AEliminate the effects ofImprove inversion accuracyParticle suspension analysisNatural satelliteSurface brightness
The invention discloses a sea fog all-time all-weather inversion method based on multispectral weather satellite information. According to the method, the influence of the diurnal change of sea surface temperature on the fog region identification is considered, a sea surface brightness temperature ambient field (clear sky composite map) (CSCM) is established aiming at the daytime and night respectively and independently according to the diurnal variation characteristic of the sea surface temperature, and a foundation is laid for accurate inversion of dissipation and concentration change in a satellite monitoring sea surface fog region; furthermore, the method aims at typical spectral characteristics of sea fog satellite monitoring at three different time intervals of daytime, night and morning and night, the optimized spectral combination and corresponding algorithm flow are respectively selected, and the all-time accurate identification of a sea surface fog region, a clear sky region and a cloud region is reliably realized.
Owner:NANJING UNIV
System and Method For Shade Selection Using a Fabric Brightness Factor
ActiveUS20070291252A1Easy to optimizeReduce lightRadiation pyrometryColor measuring devicesSurface brightnessEffect light
A system and method for determining a brightness factor associated with a window shade fabric is disclosed. The brightness factor incorporates the openness factor of the fabric, visible light reflectance of the fabric and visible light transmission of the fabric. The brightness factor helps to determine the optimum window shade fabric for a particular room, building or other location. The brightness factor information may be used to select the correct fabric based on desired interior function, light level, the relative surface brightness, and / or any other desired interior characteristic. The fabric selection may affect the building envelope by, for example, facilitating the optimization of daylighting, reduction of artificial electric lighting needs, and minimization of glare conditions.
Owner:MECHOSHADE SYST LLC
Composite titania material and its prepn and application
ActiveCN1811058AMeeting the needs of the paper industryHigh whitenessInorganic compound additionSurface brightnessWeather resistance
The present invention discloses one kind of composite titania material and its prepare process and application. The composite titania material includes a carrier, a first coating layer and a second coating layer outside the first coating layer, and may have a third outmost layer. The first coating layer is one compact isolating layer to block the immigration of impurity elements in the carrier to the surface layer titania crystal lattice and to ensure the integrity of the titania crystal lattice; the second coating layer is functional layer of titania with high whiteness and high refractive index; and the third outmost layer can deactivate surface titania, eliminate the photocatalysis of titania and raise the weather resistance and surface brightness of the composite titania material. The composite titania material is used in filling and coating paper with greatly lowered added amount and thus lowered cost.
Owner:SHANGHAI DONGSHENG NEW MATERIALS
High glaze polypropylene material and preparation method thereof
A high-lustre polypropylene material and its production are disclosed. The material consists of polypropylene resin 100 proportion, filler nanometer calcium carbonate 25-35 proportion, dispersant 0.5-1.5 proportion, cross-linking agent diisopropylzene 0.1-0.5 proportion, beta-crystal nucleation agent 0.1-0.5 proportion, and antioxidant 0.1-0.5 proportion. It costs low, has better toughness and surface brightness on surface.
Owner:SHENZHEN KEJU NEW MATERIAL
Environment-friendly low-smell and spraying-free polyamide composition and preparation method thereof
The invention discloses an environment-friendly low-smell and spraying-free polyamide composition. The environment-friendly low-smell and spraying-free polyamide composition comprises the following components in parts by weight: 95-100 parts of polyamide, 0.01-5 parts of metal compound, and 0.1-6 parts of effect pigment. According to the environment-friendly low-smell and spraying-free polyamide composition, smell produced in the production process and / or formation process of nylon materials can be extremely reduced; the appearance defects, caused by smell, on spraying-free products, in particular the products emphasizing on appearance and surface aesthetic effects, can be extremely reduced. According to the abovementioned technical scheme, the metal compound is introduced, and the post-processing technology is carried out, so that the surface brightness of the spraying-free polyamide composition is greatly improved.
Owner:SHANGHAI KINGFA SCI & TECH +2
Cast Coated Inkjet Paper
InactiveUS20050237372A1High glossIncrease brightnessDuplicating/marking methodsTypewritersSurface brightnessAcid derivative
An inkjet recording medium having at least one layer of an ink absorbing layer comprising a pigment and a binder on a base material, wherein the pigment in at least outermost layer of the ink absorbing layer being a cationic pigment, the ink absorbing layer comprises a cationic bis(triazinylamino)stilbene disulfonic acid derivative type fluorescent brightening agent, and surface brightness is at least 90% in terms of ISO brightness as specified in JIS P8148.
Owner:NIPPON PAPER IND CO LTD
UV decorative lamination decoration board and manufacturing process
InactiveCN101314981AHigh surface brightnessFull colorLamination ancillary operationsCovering/liningsSurface brightnessPulp and paper industry
Owner:汪宏伟 +1
Steel wire one-line luminosity modified treatment method and production line
ActiveCN1936032AImprove performanceOrganizational stabilityFurnace typesHeat treatment process controlProduction lineSurface brightness
The invention relates to a steel wire quality adjusting method. It adopts single material continuously process to ensure the capability and structure stabilization. The inertia protecting atmosphere in the thermal process period makes the steel wire surface brightness and need not second align. The invention could be also used for the quality adjusting process for piston circle using steel.
Owner:大连环新新材料科技有限公司
Backlight Inverter and Method of Driving Same
InactiveUS20070262727A1Low cost structureStable lamp current controlStatic indicating devicesElectric light circuit arrangementCapacitanceSurface brightness
A backlight inverter to light a plurality of CCFLs is provided which supplies a stable clamp current without influence of the CCFL temperature, and which stabilizes the LCD surface brightness immediately from the start of lighting the CCFLs, and a method of driving the backlight inverter is also provided. In a backlight inverter including a plurality of inverter transformers and adapted to light a plurality of CCFLs, two primary windings of each of the inverter transformers are connected in series to each other, and a resonant circuit is formed of a leakage inductance and capacitances at the secondary side of each of the inverter transformers, wherein the inverter transformers are operated at a frequency which is lower than an intermediate frequency between the series resonance frequency and the parallel resonance frequency of the resonant circuit, and which is higher than a frequency at which the phase characteristic curve has its peak.
Owner:MINEBEA CO LTD
Method for preparing cobalt-based amorphous alloy wire
The invention discloses a method for preparing a cobalt-based amorphous alloy wire, which comprises the following steps of: cutting mother alloy by using a copper roller with good heat-conducting property and continuously and rapidly drawing; realizing the continuous feed of the mother alloy by the matching of copper roller rotating linear speed and mother alloy feeding speed; meanwhile, continuously cooling the high-speed rotating copper roller by using a copper roller water-cooling technology; and maintaining the cutting surface of the copper roller at 30-50 DEG C all the time so as to obtain a continuous cobalt-based amorphous alloy wire with the diameter of 10-200 microns. In addition, the invention carries out the preparation process under the condition of argon protection, prevents oxidization in the forming process of the cobalt-based amorphous alloy wire and influence brought by the reaction of other cooling media, maintains the surface brightness, uniform performance and high roundness of the cobalt-based amorphous alloy wire and can be widely applied to the fields of an alternating current sensor technology and a magnetic sensor technology.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Object deformation measurement method in high-temperature environment
ActiveCN106679581AEliminate the effects of excessive surface brightness differencesFilling the Gap in Deformation MeasurementUsing optical meansMaterial thermal analysisSurface brightnessSynthesis methods
The invention discloses an object deformation measurement method in a high-temperature environment. Firstly, image acquisition on the condition of different optical attenuation rates is performed on an object with relatively large surface area brightness difference. Furthermore based on the image acquisition, an image series synthesis method on the condition of different optical attenuation rates is presented. Furthermore deformation information is acquired based on a synthesized image. The object deformation measurement method has advantages of eliminating an influence of overlarge object surface brightness difference in the high-temperature environment, realizing deformation measurement on the object with relatively large surface temperature gradient in the high-temperature environment, and settling a defect of incapability of performing deformation measurement on the object with relatively large surface brightness difference. The object deformation measurement method supplies an important reference basis for testing an engine, a nose cone and a leading edge of an existing high-supersonic-speed aircraft.
Owner:TSINGHUA UNIV
Preparation method of micro-arc oxidation-composite chemical nickel plating coating layer on surface of magnesium alloy
InactiveCN104141138APromote hydrolysis reactionAvoid PolymerizationAnodisationLiquid/solution decomposition chemical coatingSurface brightnessMicro arc oxidation
The invention discloses a preparation method of a micro-arc oxidation-composite chemical nickel plating coating layer on the surface of a magnesium alloy, and belongs to the technical field of metal surface treatment. The preparation method comprises the following steps: firstly, the micro-arc oxidation is performed for the surface of a magnesium alloy matrix to form a porous ceramic coating layer on the surface; then, the hole sealing treatment is performed for the matrix with the porous ceramic coating layer by adopting nanometer self-assembly penetrant containing nickel salt; the nickel preplating treatment is performed for the matrix, after the hole sealing treatment, by adopting alcohol solution of sodium borohydride; and finally, the composite chemical nickel plating treatment is performed for the matrix, after the nickel preplating treatment, to form the micro-arc oxidation-composite chemical nickel plating coating layer on the surface of the magnesium alloy. The micro composite coating layer, prepared by the method, has better protective thickness, good binding force with the matrix, good corrosion resistance, high hardness, good surface brightness and full luster, effectively solves the protective requirements of high wear resistance and corrosion resistance of the magnesium alloy, and provides powerful guarantee to the further application of the magnesium alloy.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
High-luminous-efficacy high-power light-emitting diode (LED) panel light
The invention discloses a high-luminous-efficacy high-power LED panel light. The panel light comprises a base plate, LED light bars, a reflector, a light guide plate, a power source and a panel. The base plate is in a square structure, arc warps are arranged at the edges of the square structure, a reflecting film is plated on the base plate, the reflectivity of the reflecting film is improved gradually form the edges to the middle, and high-reflectivity reflecting films are plated on the edge warp surfaces of the square structure to form reflectors. The LED light bars are integrated and packaged on aluminum substrates and arranged in front of the reflectors on the periphery of the base plate. The light guide plate is made of materials with scattering particles mixed and with the reflectivity approaches to the LED chip reflectivity and arranged on the base plate, the edges of the of the light guide plate are closely attached to the LED chips, and the light guide plate is fixed on the base plate through the panel and screws. The high-luminous-efficacy high-power LED panel light is uniform in light emitting surface brightness, good in radiation effect and high in light emitting efficiency.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Alloy graphite steel roll for seamless steel tube continuous rolling machine and preparation method thereof
InactiveCN109694996AImprove wear resistanceImprove thermal crack resistanceFurnace typesRollsSurface brightnessSlag
The invention relates to an alloy graphite steel roll for a seamless steel tube continuous rolling machine and a preparation method thereof. The alloy graphite steel roll comprises 1.60-1.80% of C, 0.80-1.60% of Si, 0.60-1.20% of Mn, 0.80-1.50% of Cr, 1.00-2.00% of Ni, 0.40-0.80% of Mo, 0.20-0.40% of V, 0.20-0.40% of Nb, less than or equal to 0.03% of P, less than or equal to 0.025% of S, 0.05-0.10% of Re, and the balance Fe. The above components are subjected to smelting, slag removal, nodulizing and inoculation, then are subjected to pouring and are treated through a special heat treatment method, so that the wear resistance and heat crack resistant performance are improved. Meanwhile, graphite achieves the good lubrication effect. The service life of the roll is prolonged. The surface brightness of a rolled seamless steel tube is improved. Compared with existing pearlite ductile cast iron and needle-like bainite ductile cast iron rolls, the rolling quantity of the alloy graphite steel roll is increased by 80% or moe.
Owner:常州市力创轧辊有限公司
Anti-graffiti anti-sticking nano coating and preparation method thereof
ActiveCN102911584AGood anti-graffiti and anti-stick effectEvenly dispersedAntifouling/underwater paintsPaints with biocidesEpoxySurface brightness
The invention discloses an anti-graffiti anti-sticking nano coating which comprises a base component and a curing component, wherein the ratio of the base component to the curing component is (0.5-5):(0.5-1.5); the base component comprises epoxy resin, (epoxypropoxy)propyl methyldiethoxysilane, phenyltrimethoxysilane, butanol and butyl acetate; and the curing component comprises a precursor, tetraethyl orthosilicate, deionized water, butanol and a catalyst. The embodiment of the invention also discloses a preparation method of the anti-graffiti anti-sticking nano coating. Through the invention, the nano coating realizes an excellent anti-graffiti anti-sticking effect, and has the characteristics of high permeability, high adhesive power, self-cleaning function, adjustable surface brightness, no pollution, low manufacturing cost, wide application range, low construction requirements and the like.
Owner:戚城
Preparation method of base material for anion wall plates and floors capable of purifying indoor air
The invention discloses a preparation method of anion wall plates and floors capable of purifying indoor air. The preparation method comprises the steps of preparing materials, wherein polypropylene resin and a performance improving agent are weighed and put into a mixing machine; conducting heating and stirring, so that a material mixture is formed; raising the temperature of the material mixture, conducting stirring, and sending the material mixture into a cold mixing treatment machine for conducting slow stirring and temperature lowering; weighing other raw materials other than the polypropylene resin and the performance improving agent, and putting the materials into the mixing machine; conducting heating, raising the temperature, conducting stirring, and putting obtained materials into an extruder for pressure extrusion; and conducting cooling, traction and cutting on extruded sheets, so that finished products are obtained. The products manufactured through the method are high in surface brightness, free of clamminess, attractive in appearance, firm, durable, free of deformation, good in quality and wide in application scope and has good development prospect.
Owner:SHANDONG XINHAI NEW MATERIAL
Image detection method for rotting oranges caused by penicillium infection
ActiveCN105427274AReduce lossesEfficient identificationImage enhancementImage analysisPattern recognitionSurface brightness
The invention provides an image detection method for rotting oranges caused by penicillium infection, comprising the steps of: A, collecting the single wavelength spectrum images of four characteristic wave lengths of an orange fruit to be detected; B, correcting non-uniform surface brightness on the images; C, after correction, stacking the images to obtain a characteristic wavelength combination image I; D, converting the characteristic wavelength combination image I into an index image F1; E, extracting the R component image of the three primary color component in the index image F1 and preprocessing the image; F, converting into an index image F2 again and extracting the R component image of the three primary color component in the index image; and G, performing objective area division and circularity determination on the R component image obtained in step F. The method collects the single wavelength spectrum images of four characteristic wave lengths of an orange fruit to be detected, and realizes clear and visual display of an orange fungal infection area which is hard to perceive based on the combination of an image combination formula and an image processing method, thereby more effectively and accurately identifying rotting oranges caused by penicillium infection.
Owner:BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
Method for measuring content of zeaxanthin dipalmitate in barbary wolfberry fruits based on barbary wolfberry fruit skin color values
InactiveCN108037086AUnique methodComponent separationColor/spectral properties measurementsSurface brightnessCuticle
The invention relates to a method for measuring the content of zeaxanthin dipalmitate in barbary wolfberry fruits, in particular to a method for measuring the content of the zeaxanthin dipalmitate inthe barbary wolfberry fruits based on barbary wolfberry fruit skin color values. The method includes the steps: firstly, measuring the surface brightness L, the red chromaticity a and the yellowness index of the barbary wolfberry fruits; secondly, calculating the saturation value c and the chromaticity angle h of barbary wolfberry fruit skins; finally, performing SPSS (statistic package for socialscience) linear fitting to obtain the content of zeaxanthin dipalmitate. The method is simple, convenient and unique and can be used for rapidly measuring the content of the zeaxanthin dipalmitate inthe barbary wolfberry fruits.
Owner:WOLFBERRY ENG RES INST NINGXIA ACADEMY OF AGRI & FORESTRY SCI
Silver ornament surface brightness five-layer electroplating technology
The invention discloses a silver ornament surface brightness five-layer electroplating technology, and relates to silver electroplating technologies, in particular to a five-layer electroplating technology for silver ornaments with brightness surfaces. The technology includes the following five steps that 1, the silver ornaments are treated before electroplating; 2, the silver ornaments are electroplated; 3, palladium is electroplated on the silver ornaments; 4, platinum is electroplated on the silver ornaments; and 5, aftertreatment is conducted on the electroplated silver ornaments. The technology solves the problems that the silver ornaments are low in durability, prone to oxidation and the like due to a silver ornament surface three-layer electroplating method in the prior art.
Owner:陈圳浩
Method for repairing fatigue cracks by cold spraying
InactiveCN109735839AExtended extended lifeReduce stress concentrationPressure inorganic powder coatingSurface brightnessCrazing
The invention discloses a method for repairing fatigue cracks by cold spraying. The method is mainly used in the initial stage of fatigue crack growth. The method mainly comprises the following five steps including steel structure surface brightness and cleanliness treatment, treatment of sandblasting on the surface of the front edge of a steel structure crack tip for improving roughness, weak defect treatment after sandblasting on the surface of the front edge of the steel structure crack tip, steel structure fatigue crack tip front edge surface cold spray metal particle deposition coating repairing and cold spraying deposition coating leveling and polishing. A coating is deposited on the surface of the steel structure by a certain thickness to improve the fracture toughness of a member,the crack growth rate is decreased, and the fatigue life of the steel structural member is prolonged. In a specific embodiment, the repair effect is good, operation is convenient, the environmental pollution is small, the energy consumption is low, and the method has obvious more economic benefits.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Copper and copper alloy surface cleaning liquid and preparation method thereof
The invention belongs to the technical field of copper and copper alloy surface treatment, and particularly relates to copper and copper alloy surface cleaning liquid and a preparation method thereof.The cleaning liquid is mainly prepared from, by weight percent, 8% to 12% of 98% concentrated sulfuric acid, 70% to 75% of 30% hydrogen peroxide, 2% to 4% of an additive and 15% to 20% of a bright additive. The content of hydrogen peroxide in the cleaning liquid can reach up to 70% or above, the cleaning effect is good, and the copper and copper alloy surface brightness can be remarkably improved; and a copper material is smooth and flat in surface, ebulliency is not generated in the production process, high production safety is achieved, and the cleaning liquid is suitable for wide-range application and popularization.
Owner:深圳市祥盛兴科技有限公司
Preparation method for zinc-plated iron wire steel band
InactiveCN104404442AExtended service lifeEasy to operateMolten spray coatingSurface brightnessSpray coating
Owner:JIANGSU CHANGSHU HUANTONG IND
System and method for shade selection using a fabric brightness factor
ActiveUS7684022B2Easy to optimizeReduce lightRadiation pyrometryColor measuring devicesSurface brightnessEffect light
A system and method for determining a brightness factor associated with a window shade fabric is disclosed. The brightness factor incorporates the openness factor of the fabric, visible light reflectance of the fabric and visible light transmission of the fabric. The brightness factor helps to determine the optimum window shade fabric for a particular room, building or other location. The brightness factor information may be used to select the correct fabric based on desired interior function, light level, the relative surface brightness, and / or any other desired interior characteristic. The fabric selection may affect the building envelope by, for example, facilitating the optimization of daylighting, reduction of artificial electric lighting needs, and minimization of glare conditions.
Owner:MECHOSHADE SYST LLC
Sea surface brightness temperature imaging simulation method based on one-dimensional synthetic aperture microwave radiometer
ActiveCN109725317ARadio wave reradiation/reflectionICT adaptationSurface brightnessMicrowave radiometer
The invention discloses a sea surface brightness temperature imaging simulation method based on a one-dimensional synthetic aperture microwave radiometer. The method comprises the following steps of:constructing initial background field data (frequency f, sea surface temperature Ts, seawater salinity S, incident angle [Theta], sea surface wind speed W, sea surface relative wind direction phi, atmospheric water vapor content V, cloud liquid water content L) to provide data support for sea surface brightness temperature imaging simulation; calculating the brightness temperature of the scene mode at the top of the atmosphere at different incident angles with a frequency of 6.9 GHz by using a microwave radiation transmission forward model according to the observation characteristics of the multi-incident angle of the one-dimensional synthetic aperture microwave radiometer; receiving a scene brightness temperature signal by the small antenna array of the one-dimensional synthetic aperturemicrowave radiometer to generate an electrical signal, and performing pairwise complex correlation on antenna output voltages to obtain a visibility function; and reconstructing a sea surface brightness temperature image by mathematical operations such as inverse Fourier transform. The method provides technical support for remote sensing sea surface temperature of satellite-bone one-dimensional synthetic aperture microwave radiometer.
Owner:NAT UNIV OF DEFENSE TECH
Scratch resistant and weather-resistant blending material with high brightness and metal texture
InactiveCN107778750AHigh surface brightnessStrong weather resistanceSurface brightnessWeather resistance
The invention provides a scratch resistant and weather-resistant blending material with a high brightness and a metal texture. The blending material is characterized by being prepared from the following components in parts by weight: 40-60 parts of ASA resin, 40-60 parts of PMMA resin, 20-40 parts of SAN resin, 0.2-1 part of a metal pigment, 0.2-1 part of a processing aid, 2-5 parts of a compatilizer, 0.1-1 part of an antioxidant and 0.2-1 part of a weather resistant agent. The scratch resistant and weather-resistant blending material with the high brightness and the metal texture provided bythe invention is high in surface brightness, high in weather resistance in material, scratch-resistant in surface and obvious in metal effect.
Owner:上海倍聚兰科技有限公司
Cutting process and device for improving surface brightness of machined metal parts
InactiveCN103753349AImprove machined surface qualityReal-time monitoring of temperature changesMeasurement/indication equipmentsMaintainance and safety accessoriesSurface brightnessLiquid storage tank
The invention discloses a cutting process for improving surface brightness of machined metal parts. The cutting process comprises the following steps of arranging a machining machine tool and a high-pressure oil mist compression device; injecting cooling liquid into a cooling liquid storage tank of the compression device and filling compression air into an air compressor pump and delivering mixed high-pressure oil mist into a high-pressure oil mist pipeline of a machine tool spindle through the oil mist compression device after mixing the cooling liquid and the compression air; arranging an infrared sensor in a cutting area and monitoring the temperature change of the cutting area in real time; arranging a workpiece on a working platform of the machining machine tool to be fixed, confirming a machining stroke and parameters according to the three-dimensional size and setting a cutter stroke in the parallel or vertical X-axis / Y-axis direction; starting the machining machine tool and the high-pressure oil mist compression device to spray the towards the cutting area and utilizing triple enhanced heat exchange effects of jet flow impact, air-liquid convection and vaporization to reduce the temperature of the cutting area. The invention further discloses a device implementing the cutting process for improving the surface brightness of the machined metal parts.
Owner:DONGGUAN KONKA MOLD PLASTIC +1
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