156results about How to "Good buff" patented technology

The invention provides an SAR remote-sensing image oil spilling detection and identification method, which has the concrete process comprising the following steps of utilizing a Gamma MAP filter to filter an SAR image, and filtering Sobel; carrying out a watershed algorithm on a gradient map obtained through filtering Sobel to realize sea and land division; utilizing a mean value of a sea surface area image to fill a land area, and then utilizing a C-V algorithm to carry out target area division and extraction in the same homogeneous area on the filled image; extracting a gray-level co-occurrence matrix, the texture property of wavelet decomposition, the gray-level feature and the shape feature of a target area to build a vision frequency histogram; utilizing an SVM classifier model obtained through training to classify the vision frequency histogram, removing a suspected oil spilling area from the target area, and realizing initial false-alarm removal; adopting a result of false-alarm removal as an initial labeling field; utilizing a characteristic field in a context model of MRF to carry out further false-alarm removal based on the initial labeling field, so that the SAR remote-sensing image oil spilling detection and identification method is realized.

The invention discloses a two-dimensional transition metal sulfide gas sensor based on an antenna structure, and preparation thereof. The gas sensor comprises a two-dimensional transition metal sulfide TMDCs film which is patterned into two connected parts of a conductive channel and an antenna structure, wherein the surface of the conductive channel is covered with a passivation layer; the antenna structure is used for adsorbing the gas to be tested as a gas sensitive layer; when molecules of the gas to be tested are adsorbed on the surface of the antenna structure and are performed with charge transfer, the concentration of carriers in the antenna structure changes to form a concentration gradient and induce the diffusion of the carriers, so that the concentration of the carriers in theconductive channel changes, and finally the resistance of the conductive channel is changed, thereby realizing the sensing of the gas to be tested by the gas sensor. The sensor, by distinguishing thegas sensitive layer and the conductive channel into two parts on the sensor structure, not only helps to increase the stability of the sensor, but also can improve the sensitivity of the gas sensor byutilizing the gain effect of the antenna structure.

The invention discloses effective gentle makeup-removing micelle liquid. The effective gentle makeup-removing micelle liquid comprises, by weight, 15%-30% of makeup-removing components, 0.15%-1.0% of additives and the balance aqueous phase components, wherein the makeup-removing components are composed of babbasu seed oil glycerinum-8 esters and dipropylene glycol. Aggregate mass point particles with the size identical to that of colloid are automatically formed by the babbasu seed oil glycerinum-8 esters, and therefore the micelle liquid is formed, the performance of a surface active agent of the micelle liquid is thoroughly achieved, and the dissolving capacity of the micelle liquid to common grease of makeup products is good; the dipropylene glycol can be well dissolved in a micelle liquid system, so that micelle formed in water by the babbasu seed oil glycerinum-8 esters is more balanced and stable and the makeup-removing capacity of the micelle liquid is well improved. According to the effective gentle makeup-removing micelle liquid, allergic and stimulated phenomena and the like of a user are avoided and use is safe; the micelle liquid is remarkable in gentle and effective makeup-removing effect.

The invention discloses a power grid node voltage dip risk evaluation method. Short circuit faults possibly occurring in a power grid are simulated based on a computer model, influences caused by the short circuit faults to the power grid are simulated, through simulating various types of randomly occurring short circuit faults at various positions and obtaining a voltage dip statistical condition of a regional power grid in case of numerous random faults, each node in the regional power grid is evaluated, and the condition of each node generating a short-circuit voltage dip risk is analyzed. Compared to a conventional actual measurement statistical method, the method, based on a random pre-estimation method, can effectively prevent consumption of enormous manpower and material resources by use of the actual measurement statistical method, avoids the problem of insufficiency of original data, facilitates analysis of the voltage dip risk of each node of the power grid, and has an important value in improving electric energy quality of the power grid and preventing a voltage dip problem.

Graphene anticorrosive coating is prepared from, by weight, 5%-15% of epoxy resin, 1.6-6.6% of a curing agent, 10-40% of filler, 0.2-1% of auxiliary agents, 0.2-3% of graphene, 20-40% of a reactive diluent, 0.1-5% of a silane coupling agent, 10-50% of zinc powder and 0.15-2% of a dispersing agent. By adoption of 1% of graphene for replacing 60% of zinc powder, zinc powder consumption is sharply decreased, dust pollution in construction is reduced, and neutral salt mist resistance is improved. By the reactive diluent for replacing an existing common volatile organic solvent, graphene cane scattered effectively to form the solvent-free graphene anticorrosive coating, and low VOC content, environmental friendliness and healthiness are realized.

The invention discloses an encrypted image reversible information hiding method, which comprises the following steps of S1, performing block scrambling on an original image to obtain out-of-order image blocks; S2, encrypting the out-of-order image blocks to obtain an encrypted image; and S3, selecting a reference pixel, a special pixel and residual pixels from the encrypted image, and classifyingand encoding the pixels to obtain an encoded image, thereby completing reversible information hiding of the encrypted image. According to the method, the image redundancy characteristic can be fully utilized by the adaptive coding method, compared with an existing related coding method, higher information hiding capacity can be achieved, and especially for a smooth image, the gain effect of the embedding rate is particularly remarkable.

The invention relates to a synergistic herbicide composition and an application method thereof and in particular relates to a synergistic herbicide composition which is prepared through ternary combination of pendimethalin, oxyfluorfen and oxadiazon and is applied to corn fields. The synergistic herbicide composition comprises active ingredients including (a) N-(1-ethylpropyl)-2,6-binitro-3,4-dimethylaniline, (b) 2-chloro-4-trifluoromethylphenyl-3'-ethoxy-4'-nitrophenyl ether and (c) 5-tert-butyl-3-(2,4-dichloro-5-isopropoxyphenyl)-1,3,4-dioxazoline-2-ketone, wherein the weight ratio of (a) to (b) to (c) is (1-50):(1-50):(1-50). The synergistic herbicide composition has a beneficial effect on controlling weeds in the peanut fields, effectively controls annual grassy and broadleaf weeds in the peanut fields, effectively controls generation of weeds with resistance, and simultaneously can reduce the overall use cost and expand the weed control spectrum.

The invention provides a bactericidal composition comprising active components of fluopicolide and copper calcium sulfate with a weight ratio of 1:100-100:1. According to the invention, fluopicolide and copper calcium sulfate are subjected to binary compounding, such that the composition has a significant synergistic effect in controlling crop diseases caused by fungi and bacteria. With binary compounding, bactericidal spectrum is expanded; the doses of the two components are reduced; and the risk of pathogen drug resistance is reduced.

The embodiment of the invention discloses a resource distribution method. The resource distribution method includes the following steps that a primary dispatching sequence is configured; users are sequentially dispatched according to the primary dispatching sequence and physical resource blocks are distributed for the users; whether leftover physical resource blocks which are not distributed exist or not is judged; if yes, whether all the users are dispatched or not is further judged; if yes, the leftover physical resource blocks are distributed again for the dispatched users. The embodiment of the invention further discloses a resource distribution device. With the resource distribution method and system, under the condition that the requirement for service quality of the users is met, bandwidth resources are fully utilized and overall power consumption of a base station is reduced.

The invention discloses high-definition high-brightness projection screen coating. The coating is composed of, by weight, 100 parts of PVC paste resin, 0.5-3 parts of transparent methacrylic resin microspheres, 0.5-3 parts of glass powder, 1-3 parts of metal powder, 10-15 parts of anatase titanium dioxide, 65-85 parts of a plasticizer, 2-10 parts of a heat stabilizer, 0-1 part of a wetting agent and 0-1 part of a dispersant. By adding the transparent methacrylic resin microspheres, glass powder and metal powder which are used as a filler of the projection screen coating, the methacrylic resin microspheres have good adhesiveness with PVC and are lightweight. Thus, the methacrylic resin microspheres are not easy to fall off. The metal powder can further improve beneficial effects of a projection screen. The glass powder increases brightness of the projection screen. Through particle size matching of the above three ingredients, the projection screen can have high definition and high brightness in a wider perspective. In addition, cost of the projection screen is much lower than cost of a traditional metal screen. The high-definition high-brightness projection screen coating is a projection screen making material suitable for family use.

The invention discloses a weaving method of a woven spacer fabric structural antenna. The method comprises the following steps: selecting conductive yarns, weaving the conductive yarns and fibers with low-dielectric-loss performance into a radiation element and a grounding plate of the spacer fabric microstrip antenna, wherein the radiation element and the grounding plate are respectively used as a top layer and a bottom layer of the spacer fabric; and compositing a microstrip antenna preformed part with a coaxial feed and an appropriate resin material to obtain the spacer composite material microstrip antenna structure. Since the woven spacer fabric has a hollow structure characteristic, the microstrip antenna is light in weight, resistant to impact, unlikely to layer, capable of greatly improving the reliability and prolonging the service life of the antenna and wide in application prospect in the fields such as aerospace, transportation and information.

The invention relates to a heat pipe generator air-cooling cooling device which comprises a generator, and the generator comprises a stator, a rotator and a rotating shaft; the innovation point is in that: the generator also comprises a fan, a heat exchanger assembly, a wind guide cover and a cooling assembly, the cooling assembly is arranged on the periphery of the stator of the generator, the outlet of the fan is communicated with one end of the heat exchanger assembly, and the wind guide cover is communicated with the other end of the heat exchanger assembly; the heat exchanger assembly comprises a heat exchanger shell and condenser pipes, a plurality of condenser pipes are arranged in the heat exchanger shell, and the condenser pipe has a liquid inlet and a liquid outlet; the cooling assembly comprises a cooling shell and evaporating pipes, a plurality of evaporating pipes are arranged in the cooling shell, and the cooling shell is fixedly connected with the periphery of the stator of the generator; and the liquid outlets of the condenser pipes of the heat exchanger assembly are respectively communicated with corresponding evaporating pipes in the cooling shell. According to the invention, the device provided by the invention has advantages of simple structure, high cooling efficiency and low energy consumption.

The invention discloses an offset-feed type microwave antenna which comprises a feed source, a first metamaterial panel and a reflection panel attached on the back of the first metamaterial panel, wherein an angle theta which is not equal to 180 DEG is formed between a connecting line of the feed source and the center point of the outer surface of the first metamaterial panel. Spherical electromagnetic waves sent by the feed source are refracted after passing through the first metamaterial panel and then reflected by the reflection panel and then refracted through the first metamaterial paneland transmitted in a form of planar electromagnetic waves. The offset-feed type microwave antenna is manufactured by adopting a metamaterial principle, so that the antenna is independent of limits ofa conventional convex lens shape, a conventional concave lens shape and a conventional paraboloid shape, can adopt a panel shape or any shape, and has the advantages of smaller thickness, smaller volume, more convenience for processing and manufacturing, low cost and good gain effect.

The invention relates to a friction power generation textile with moisture absorption and perspiration-discharging functions and a preparation method thereof. The friction power generation textile comprises independent textile units, wherein the textile units comprise moisture absorption and perspiration-discharging fabrics, conductive fabrics and friction polar fabrics. The design of the full fabric porous structure ensures the air permeability and moisture permeability of the power generation fabric. When friction surfaces of two pieces of textiles are in contact separation, milliwatt outputpower can be produced. When a human body is sweating, the electrical output power may not be significantly reduced, and can be used to drive common wearable electronic equipment. The friction power generation textile with moisture absorption and perspiration-discharging functions has good flexibility, washability, good air permeability and moisture permeability and good wearing comfort.

A wideband bow tie antenna includes a guiding unit, a radiating unit, and a reflecting unit. The radiating unit is configured between the guiding unit and the reflecting unit. The radiating unit includes a guiding substrate and a guiding patch configured on the guiding substrate. The radiating unit includes a radiating substrate and a first bow tie radiator which is configured on the radiating substrate and coupled with the guiding patch. The first bow tie radiator includes two single radiating portions which are symmetrically configured to each other. The reflecting unit includes a reflecting substrate and a loop reflecting patch which are configured on the reflecting substrate and coupled with the first bow tie radiator.

The invention relates to a strip-shaped optical waveguide amplifier by adopting a novel organic polymer material as an optical waveguide envelope, and adopting an organic-inorganic hybrid material doped with LaF3: Er, Yb nano-particles which are modified by an oleic acid surface as a sandwich layer, as well as the preparation method thereof. The optical waveguide amplifier is composed of a silicon substrate, a lower envelope, the sandwich layer and an upper envelope, wherein the lower envelope and the upper envelope adopt the novel organic polymer material; the sandwich layer adopts the organic-inorganic hybrid material doped with the LaF3:Er, Yb nano-particles which are modified by the oleic acid surface; the refractive index of the sandwich layer is larger than the refractive index of the lower envelope and the upper envelope; a plurality of strip-shaped waveguide grooves are formed on the lower envelope; the strip-shaped waveguide grooves are filled with the organic-inorganic composite materials of the sandwich layer, so as to form a buried structure. The method for making the optical waveguide amplifier is simple; the refractive index difference between the polymer sandwich layer and the envelope material is easy to control; and the thickness of each layer of material is easy to control. The optical waveguide amplifier has the advantages of low cost, good gain performance and high yield, and is suitable for mass production.

The invention discloses an antenna apparatus applied to an electronic device with a housing. A circuit board and an antenna body connected with the circuit are included inside the housing. A metal component is also arranged inside the housing. The antenna apparatus also comprises a grounding part connected with the antenna body. The grounding part is arranged above the metal component and a grounding point of the antenna body, and the metal component is connected with the grounding point of the antenna body. The antenna body and the metal component and the circuit board form a radiator of the antenna apparatus. According to the antenna apparatus provided by the invention, space requirements such as the height of the antenna and peripheral spacing can be effective reduced on the basis that a usage function of the antenna is satisfied, so that the antenna apparatus provided by the invention accords with a development trend towards being ultra-light and ultrathin of electronic devices. On the above basis, the invention also provides the electronic device with the antenna apparatus.

The invention discloses an envelope detector with a graphene transistor, comprising the graphene transistor, a first inductor, a first capacitor, a second inductor, a second capacitor, an input end and an output end, wherein the graphene transistor further comprises a substrate, a transition layer, a metal wiring layer, an interlayer medium layer, connecting lines, a source electrode, a drain electrode, a grid electrode and the channel layer of a graphene membrane, the source electrode is connected with ground, the grid electrode is connected with a bias voltage, and the drain electrode is connected with a working voltage. The envelope utilizes dual polarities of the graphene membrane, and has the advantages that the structure of a circuit is simple and gain can be provided simultaneously.

The invention relates to an integrated photovoltaic encapsulation material with high reflectivity and applications thereof. The integrated photovoltaic encapsulation material is sequentially composedof a weather-resistant outer layer, a support layer, a primer layer, a buffer layer, a sandwich layer and an encapsulation layer. The integrated photovoltaic encapsulation material prepared by the invention is applied to the back surface of a crystal silicon module battery chip, and can replace the combination of a conventional back layer encapsulation adhesive film and a photovoltaic backplane material. The integrated photovoltaic encapsulation material exhibits excellent thermal stability and is convenient to use during lamination of component manufacture. Problems of whitening, flanging andwrinkling are eliminated, and the manufacturing process cost and the defective product rate of components are greatly reduced. Meanwhile, the integrated encapsulation material has high reflectivity,is beneficial to the solar light utilization rate of a photovoltaic module and has an obvious gain effect on power, so the material is a high-reliability integrated encapsulation material suitable forcrystal silicon modules.

A device capable of preventing rotation in connection between ship shafting and a front screw shaft comprises a limit plate, an adjusting bolt arranged at one end of the limit plate, a hook and a bolt arranged at the other end of the limit plate. A sleeve is sleeved on the outside of one end of the bolt, the inside of the bolt is connected with a screw, and a washer is arranged at the other end of the screw. An installing method of the device is further provided. The device can prevent damage to the screw shaft and relevant accessories, and the damage is caused by abnormal rotation caused under the condition that a propeller of the screw shaft is accidentally subjected to external force and has the advantages of being convenient to operate, capable of being used repeatedly and permanently, free of maintaining, low in manufacture cost and low in use cost.

The invention provides a bactericidal composition. The bactericidal composition comprises the active components of Picarbutrazox and at least one amide bactericide, and the weight ratio of the Picarbutrazox to the at least one amide bactericide is 100:1-1:100. According to the bactericidal composition, binary combination is conducted on the Picarbutrazox and the at least one amide bactericide, and therefore the bactericidal composition has an obvious gain effect on prevention and treatment of crop diseases caused by fungi and bacteria; besides, a bactericidal spectrum is expanded through the binary combination, the usage amount of the Picarbutrazox and the usage amount of the at least one amide bactericide are separately reduced, and the risk that pathogenic bacteria have drug resistance is reduced.

The invention discloses a novel projection curtain coating. The novel projection curtain coating comprises PVC paste resin 100parts, silvering glass powder 1-8parts, anatase titanium dioxide 8-15parts, plasticizer 65-85parts, heat stabilizer 2-10parts, wetting agent 0-1parts and dispersant 0-1parts by weight. According to the novel projection curtain coating, the silvering glass powder is added as a filler of the projection curtain coating, the silvering glass powder and PVC have good binding property, so light weight and no-easy shedding can be realized, the silvering glass powder has the better gain effect and better brightness compared with traditional metal powder or glass powder, and the silvering glass powder is a projection curtain manufacturing material suitable for household and theater use.

The invention provides a B1 / L1 broadband satellite antenna based on T-shaped balance load of an L-shaped slot, and relates to a broadband satellite antenna. The broadband satellite antenna is provided with a dielectric substrate; good conductor layers are laid on the upper surface and the lower surface of the dielectric substrate respectively; the good conductor layer on the upper surface is provided with two L-shaped slot-loaded circular radiation patches; a feed structure is arranged on the good conductor layer on the lower surface and is a split power division network; and the lengths of microstrip lines of a power divider are 3-4.5mm, the quarter impedance conversion length is L2+L3+pi*D1 / 2 and a difference of a quarter wavelength exists in the length of a feeder to achieve a 90-degree phase shift by an output end, wherein L2 and L3 are the lengths of the microstrip lines and D1 is the width of the feeder. The good conductor layer on the upper surface is a metal ground plane. According to the B1 / L1 broadband satellite antenna based on T-shaped balance load of the L-shaped slot, the miniaturization characteristic can be achieved, the gain performance is relatively good and horizontal omnidirectional radiation can be achieved.

The invention discloses a target detection method, system and device for a remote sensing image and a medium, and the method comprises the following steps: obtaining a to-be-detected picture, carrying out the feature extraction of the to-be-detected picture, and obtaining a feature map with a detection frame; inputting the feature map into a two-stage cascaded detection network, and obtaining direction sensitive features of the feature map in a first-stage detection structure by adopting multi-direction RoI Align, so that the detection frame has angle parameters; and in the second-stage detection structure, adopting a multi-branch deformation convolution module to carry out alignment processing on the feature map, obtaining a final detection frame, and achieving target detection. The method, system and device do not need to generate extra candidate boxes in various orientations in a region extraction network stage, but extract features in multiple different directions, the calculated amount is relatively not increased, the obtained direction sensitive features have a good gain effect on regression branches, the overall performance of the model is improved, the method, system and device can be widely applied to the technical field of image processing.

The invention relates to a synergistic herbicide composition and an application method thereof and in particular relates to a synergistic herbicide composition which is prepared through ternary combination of mesotrione, butachlor and flupoxam and is applied to corn fields. The synergistic herbicide composition comprises (a) 2-(2'-nitro-4'-methanesulfonylbenzoyl)-1,3-cyclohexanedione, (b) 2-chloro-N-(2,6-diethylphenyl)-N-(butoxymethyl)acetamide and (c) 1-[4-chloro-A-(2,2,3,3,3-pentafluoropropyl)m-methyl]-3-carbamoyl-5-phenyl-1H-1,2,4-triazole, wherein the weight ratio of (a) to (b) to (c) is (1-50):(1-50):(1-50). The synergistic herbicide composition has a beneficial effect on controlling weeds in the corn fields, effectively controls annual grassy and broadleaf weeds in the corn fields, effectively controls generation of weeds with resistance, and simultaneously can reduce the overall use cost and expand the weed control spectrum.

The embodiment of the invention provides a direct-conversion radio frequency receiving front-end circuit device. The device comprises a driving stage circuit, a switch pair circuit and a load circuit; the driving stage circuit converts a small signal voltage vRF into small signal current iRF, and folds the small signal current iRF to make the small signal current iRFflow into a source electrode of a PMOS tube in the switch pair circuit through an NMOS tube; the switch pair circuit carries out frequency conversion processing on the small signal current iRF through the PMOS tube to obtain medium frequency small signal current and transmits the medium frequency small signal current to the load circuit; and the load circuit converts the medium frequency small signal current into a medium frequency small signal voltage and outputs the medium frequency small signal voltage. The direct-conversion radio frequency receiving front-end circuit device provided by the embodiment of the invention reduces the noise in a similar current injection mode to improve the overall performance of the circuit. A folded structure is employed to increase an additional branch from the power supply to the ground, in other words, the optimization degree of freedom of bias current is correspondingly increased. The bias current of a switch pair is reduced to improve the flicker noise performance, and meanwhile, the direct-conversion radio frequency receiving front-end circuit device has excellent gain performance.

The invention relates to the field of skin care products, and particularly discloses a bilberry water-light composition and a preparation method thereof. The bilberry water-light composition comprisesa skin base solution and essence oil; the skin base solution is prepared from the following raw materials: water, propylene glycol, trehalose, a radix salviae miltiorrhizae extract, a bilberry fruitextract, a liquorice root extract, a chondrus crispus extract, a willow flower / leaf / stem extract, aloe vera leaf juice, oat beta-glucan, 1, 2-hexanediol and ethylhexylglycerin; and the essence oil isprepared from squalane, jojoba seed oil, a bilberry fruit extract, sweet almond oil, caprylic / capric triglyceride, plant seed oil, haematococcus pluvialis oil, olive fruit oil, oat kernel oil, plant essential oil and bisabolol. The bilberry water-light composition disclosed by the invention has good long-acting moisturizing effect, and has the effects of moisturizing, moistening and resisting aging on the skin.

The invention discloses an implementation method for promoting lignin depolymerization by pre-oxidation-catalytic hydrogenolysis, which comprises the following steps: carrying out pre-oxidation on lignin in a solvent system by using 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ); concentrating the pre-oxidized mixed solution under reduced pressure until the mixed solution is thick, dropwise adding water or diethyl ether to precipitate, collecting and washing the precipitate, and freeze-drying the precipitate to obtain pre-oxidized lignin; and finally, putting the pre-oxidized lignin, a CuMgAlOx catalyst and a hydrogen-donor solvent into a high-pressure reactor, washing the gas with inert gas, pressurizing the system, sealing the reactor, and carrying out catalytic hydrogenolysis on the ligninat a certain temperature for a certain time. The two-step method provided by the invention can greatly improve the total yield of the monomer and the dimer generated by lignin depolymerization, avoidsthe use of high-pressure hydrogen through solvent in-situ hydrogen supply, provides a reliable method for efficiently and safely converting lignin into a biofuel precursor, and has a good applicationprospect.

The invention discloses a one-emission-two-receiving circularly-polarized integrated antenna. The one-emission-two-receiving circularly-polarized integrated antenna comprises a circularly-polarized patch antenna unit and a printed circuit board, wherein the circularly-polarized patch antenna unit and a feeding structure are integrated onto the printed circuit board, the circularly-polarized patchantenna comprises a microstrip plate, an antenna radiator and a metal post probe, the antenna radiator is arranged on an upper surface of the microstrip plate, the metal post probe vertically penetrates through the microstrip plate and the printed circuit board, two ends of the metal post probe are respectively connected with the antenna radiator on the upper surface of the microstrip plate and amicrostrip line on a lower surface of the printed circuit board, and a plurality of electromagnetic bandgap structure units are arranged at an outer side of the antenna radiator and are annularly distributed. By the one-emission-two-receiving circularly-polarized integrated antenna, the isolation between the antenna units can be effectively, the directional diagram, the shaft ratio and the gain performance of the antenna units are improved, and the integration of the antenna and a circuit and a component on the printed circuit board is facilitated.