108results about How to "Avoid clusters" patented technology

An object recognition system is described that incorporates swarming classifiers with attention mechanisms. The object recognition system includes a cognitive map having a one-to-one relationship with an input image domain. The cognitive map records information that software agents utilize to focus a cooperative swarm's attention on regions likely to contain objects of interest. Multiple agents operate as a cooperative swarm to classify an object in the domain. Each agent is a classifier and is assigned a velocity vector to explore a solution space for object solutions. Each agent records its coordinates in multi-dimensional space that are an observed best solution that the agent has identified, and a global best solution that is used to store the best location among all agents. Each velocity vector thereafter changes to allow the swarm to concentrate on the vicinity of the object and classify the object when a classification level exceeds a preset threshold.

The invention belongs to the field of application of a nano material, particularly relates to a preparation method of a silver nanowire-zinc oxide composite transparent electrode and aims to simplify process, reduce cost and obtain the silver nanowire-zinc oxide composite transparent electrode with excellent light transmission and electrical conductivity, high wear resistance and environmental stability. The invention adopts the following technical scheme: 1, an ultra long silver nanowire is prepared by an improved polyol reduction method; 2, the silver nanowire is processed by a post-processing process; 3, a silver nanowire transparent conductive film is prepared; 4, zinc oxide nano particles are filled. The preparation method has various advantages of simple process, high repeatability, easiness for operation and control and the like.

An object recognition system is described that incorporates swarming classifiers with attention mechanisms. The object recognition system includes a cognitive map having a one-to-one relationship with an input image domain. The cognitive map records information that software agents utilize to focus a cooperative swarm's attention on regions likely to contain objects of interest. Multiple agents operate as a cooperative swarm to classify an object in the domain. Each agent is a classifier and is assigned a velocity vector to explore a solution space for object solutions. Each agent records its coordinates in multi-dimensional space that are an observed best solution that the agent has identified, and a global best solution that is used to store the best location among all agents. Each velocity vector thereafter changes to allow the swarm to concentrate on the vicinity of the object and classify the object when a classification level exceeds a preset threshold.

Disclosed is an improved semiconductor structure (e.g., a silicon germanium (SiGe) hetero-junction bipolar transistor) having a narrow essentially interstitial-free SIC pedestal with minimal overlap of the extrinsic base. Also, disclosed is a method of forming the transistor which uses laser annealing, as opposed to rapid thermal annealing, of the SIC pedestal to produce both a narrow SIC pedestal and an essentially interstitial-free collector. Thus, the resulting SiGe HBT transistor can be produced with narrower base and collector space-charge regions than can be achieved with conventional technology.

The invention discloses a method and a system for calculating space-time locus similarity. The method comprises the following steps of: 1, defining a distance corner rate, and describing features of user interest points; 2, identifying the user interest points according to an experience threshold, and calculating public interest points according to the user interest points of a locus; and 3, calculating similarity and dissimilarity between subsections between every two public interest points, calculating similarity and dissimilarity between loci by defining subsection time, similar subsections and similar routes, and thus obtaining the locus similarity.

The invention relates to a sweet potato rotary tillage ridging transplanting combined operation machine suitable for transplanting an exposed sweet potato seedling, and belongs to the technical field of agricultural planting machinery. The combined operation machine comprises a transplanting unit and a rotary tillage ridging unit which are connected by a connection frame; the outside of traction plates, forwards extending, at two sides of the middle of a horizontal main rod of the connection frame is fixedly connected with a rotary tillage unit; a pair of traction plates downwards extend to a stubble pressing disc; a ground wheel assembly at the front side of the transplanting unit is provided with a transmission shaft in transmission connection with a power input end of the transplanting unit; a working chain wheel is arranged at one side of the ground wheel; the working chain wheel is in transmission connection with a driven chain wheel on the transmission shaft by a chain; a ridge repairing assembly is arranged at the rear side of the transplanting unit; a pair of splayed soil collecting discs are hinged to a support member of the ridge repairing assembly; each disc supports a roller. Stubble pressing and stubble damaging operations can be reliably finished by the sweet potato rotary tillage ridging transplanting combined machine, the ground wheel assembly works from a furrow without damaging the ridge form, and the ridge repairing assembly can automatically finish the soil ridging, ridge smoothening and ridge repairing works after the transplantation.

A sensor device (50) for sensing magnetic particles (15), the sensor device (50) comprising a substrate (25) and a sensing unit (11, 20) provided on and / or in and / or near the substrate (25) and being adapted for sensing a detection signal indicative of the presence of the magnetic particles (15), and a magnetic field control unit (30 to 34) provided off the substrate (25) and being adapted for generating a time-dependent magnetic field for interaction with the magnetic particles (15).

The present invention relates to a method and an apparatus for fabricating a preform (1,10,100) that can be used for drawing an active optical fiber (8). The present invention further relates to an active optical fiber (8), designed for amplification or attenuation purposes, drawn from said preform (1,10,100) and to an optical amplifier (600, 601) using a laser active optical fiber.

The invention relates to water-based dispersion liquid dye ink for ink jetting and printing of a polyester textile. The ink comprises the following components by mass percent: 0.5-15% of dispersion dye, 0.05-5% of ionic liquid, 0.1-3% of surface tension modifier, 0.1-3% of viscosity modifier, 0.2-2% of pH modifier and the balance of deionized water. During ink preparation, auxiliary agents such as other dispersion agents and a surfactant are not required; solvent composition for preparing a co-dispersion dye is very simple, and only the ionic liquid is required in principle. The ink is simple in method and convenient to operate, and grinding in a grinding mill, nanofiltration and the like do not exist, so that the ink is green, pollution-free and environment-friendly, and has no harm to working personnel.

Methods for fabricating metal nano-particle embedded enhancement substrates used for surface enhanced Raman spectroscopy (SERS) including ion implanting metal nano-particles into the substrate and etching the substrate to partially expose the metal nano-particles. The resulting material is useful as a SERS substrate for detection of molecules adsorbed on it by surface enhanced Raman spectroscopy.

The invention discloses a box assembling production line for an arm joint. The arm joint comprises an upper cover plate, a lower cover plate, a web and a partition plate. The box assembling production line comprises an annular track and an automatic guiding trolley arranged on the annular track movably. A web locating station, an inner welding station and an upper cover plate locating station are arranged on the annular track sequentially. The web locating station is used for locating the lower cover plate to be assembled and the web to be assembled, the inner welding station is used for welding the located lower cover plate and web together from the inside and welding the partition plate and the web from the inside, the upper cover plate locating station is used for assembling the upper cover plate to be assembled above the welded web and the partition plate and locating the upper cover plate to form a box structure. The invention further discloses a box assembling method, a production system and a production method for the arm joint. The box assembling production line enables box assembling operation of the arm joint to be automatic assembling line operation, is high in working efficiency and reduces labor.

A sensor device for sensing magnetic particles, the sensor device including a substrate and a sensing unit provided on and / or in and / or near the substrate. The sensing unit is configured to sense a detection signal indicative of the presence of the magnetic particles. The sensor device further includes a magnetic field control unit which may be provided off the substrate and is configured to generate a time-dependent magnetic field for interaction with the magnetic particles.

The invention discloses a mask capable of effectively filtering out PM2.5, and belongs to the technical field of daily life protective equipment. The mask comprises a mask body. The mask body comprises an inner layer, an outer layer and a filter piece. First and second ear hanging loops are arranged on the left and right sides of the mask body. The filter piece is arranged between the inner layer and the outer layer or arranged on the side, backing on to the outer layer, of the inner layer. The mask is characterized by further comprising a face attaching supporting and expanding mechanism which is arranged around the peripheral edge of the mask body, is used for enabling the peripheral edge of the mask body to make contact with the face of a wearer in an attached mode, and expands the whole mask body when the wearer wears the mask body; the first and second ear hanging loops are retained on the left and right sides of the mask body through the face attaching supporting and expanding mechanism, and the filter piece is a breathable and waterproof filter membrane or a melt-blown nonwoven fabric. The sealing performance between the peripheral edge of the mask body and the face of the wearer is ensured, lenses of glasses of the wearer will not be steamed up, the protective effect is good, the ideal waterproof effect is reflected, and the phenomenon that the whole mask moves about and displaces up and down or left and right when the wearer wears the mask is avoided.

The invention provides a method for pulse electrodeposition of a Ni-SiC composite coating on the surface of an aluminum alloy. According to the method, electroplate liquid comprises sodium citrate, ethylenediamine tetraacetic acid disodium salt, nickel sulfate, nickel chloride, boric acid, silicon carbide particles and a surfactant namely sodium stearate, wherein the pH value of the electroplatingsolution is 5-6, mechanical stirring is carried out in the electrodeposition process, and the current density of electrodeposition is 15-22 A / dm<2>. By means of the method, the Ni-SiC composite coating which is refined, compact, uniform in silicon carbide dispersion and high in content can be obtained, the technical problem that the abrasion resistance of an aluminum alloy is poor is solved, andthe Ni-SiC composite coating which is good in binding force, high in silicon carbide hard particle content, uniform in distribution, high in hardness and good in wear resistance can effectively protect an aluminum alloy sample.

The invention provides a lithium ion battery negative electrode material FeS / Fe / C and a preparation method thereof. The preparation method comprises the steps of dissolving an iron source and a sulfursource in distilled water according to a mole ratio of Fe and S being 1:1 to obtain an iron source aqueous solution and a sulfur source aqueous solution; and dropwise adding a papermaking red liquidinto the iron source aqueous solution, dropwise adding the sulfur source aqueous solution, finally adding an additive, performing uniform mixing, and performing hydrothermal treatment, washing, drying, grinding and calcination under protection of an inert gas to obtain the lithium ion battery negative electrode material FeS / Fe / C. The negative electrode prepared by the method has favorable electrochemical performance and has high specific capacity and favorable cycle stability. The method is simple, the industrial waste papermaking red liquid is used as one of main raw materials, and the cost is reduced as well as the waste is recycled.

The embodiment of the invention discloses a sample clustering method and device, equipment and a storage medium, and relates to the field of data processing, and the method comprises the steps: carrying out the statistics of a first sample distance corresponding to each sample in a sample set, and enabling the first sample distance to be the distance between the sample and an Sth neighbor sample of the sample; in all the first sample distances, acquiring a first sample distance in a set distance range; calculating a distance mean value based on the first sample distance in the set distance range; determining all connection samples of each sample based on the K neighbor sample set corresponding to each sample, wherein K > S, and the connection samples of the samples are neighbor samples and have a connection relationship; and clustering samples in the sample set according to the connection samples, the distance mean value and the S value, the distance mean value being a scanning radius, and the S value being a minimum inclusion sample number of clustering. By adopting the method, the technical problem that a DBSCAN algorithm in the prior art cannot reasonably cluster a sample set with uneven density can be solved.

The invention discloses a micro light-emitting diode display panel and a preparation method thereof, the micro light-emitting diode display panel comprises: a driving back plate, wherein one surface of the driving back plate is provided with a plurality of grooves, the bottom of each groove is provided with a first magnetic electrode, and the sectional dimensions of the grooves are gradually increased from bottom to top; and a micro light-emitting diode which is embedded into the groove of the driving back plate, wherein a second magnetic electrode is arranged at one end of the micro light-emitting diode, the second magnetic electrode and the first magnetic electrode are in contact with each other, and the maximum section size of the micro light-emitting diode is not smaller than that of the groove. In this way, the transfer efficiency of the micro light-emitting diode can be improved, and large-scale transfer is achieved.

The invention discloses a circular saw web wear extent online measuring method. The method is realized through the following steps: an industrial control computer triggering an image acquisition card, and obtaining circular saw web images from an industrial camera; preprocessing the images; based on a self-adaptive threshold, finding out candidate angle points of circular saw webs by use of an eight-neighborhood gray scale similarity screening method; determining whether the candidate angle points are unique angle points in a neighborhood or angle point response function values are the maximum so as to rejecting pseudo angle points; determining whether the angle points are maximum points, and otherwise rejecting the angle points so as to determining whole pixel coordinates of circular saw web tip points; carrying out sub-pixel positioning on the tip points by use of a cubic surface fitting method; and solving a radius value of a circle where the tip points are disposed by use of a least square method, and obtaining an actual wear extent of the circular saw webs through a camera calibration relation. According to the invention, the circular saw web wear extent online measuring method is good in real-time performance, high in detection precision and high in effectiveness. Besides, a detection result provides a basis for a compensation mechanism to execute compensation.

The invention discloses a vertically-structured LED chip, which includes a substrate layer and a bonding layer arranged on the substrate layer. The bonding layer is provided with a first protective layer and an X-dots / Ag / Y reflector layer arranged thereon, the X-dots / Ag / Y reflector layer is provided with a p-GaN layer and an InGaN / GaN quantum well layer arranged thereon, and the InGaN / GaN quantumwell layer is provided with an n-GaN layer and n electrode layer arranged thereon. The invention also discloses a manufacturing method of the vertically-structured LED chip. Good adhesion between thereflector layer and the conductive substrate of the vertically-structured LED chip prevents the reflector layer from shedding during a subsequent manufacturing process and also guarantees good ohmic contact between the p-GaN layer and the Ag layer.

The invention discloses an ink-jet printing device which is used for printing an organic light-emitting device. The ink-jet printing device comprises an ink jet unit, an ink supply unit, a liquid supply unit, a negative pressure unit and a control unit. The ink supply unit is in fluid connection with the ink jet unit and is used for providing stored ink for the ink jet unit; the liquid supply unit is in fluid connection with the ink jet unit and is used for providing a solvent for the ink jet unit; the negative pressure unit is in fluid connection with the ink jet unit and is used for providing negative pressure for the ink jet unit; the ink jet unit is used for accommodating ink formed by mixing the stored ink and the solvent and is used for controlling the printing ink to conduct printing; and the control unit is used for controlling the supply of the stored ink and the solvent according to a detection value of the ink jet unit.

The invention discloses a SiO2-precious metal nano composite material of a core-shell structure and a preparation method thereof. The preparation method comprises the following steps: S1, preparing amino silicon dioxide nano particles; S2, generation of noble metal nanoparticles on the surfaces of the amino silicon dioxide nanoparticles: S21, adding the amino silicon dioxide nanoparticles preparedin S1 into ultrapure water, and performing ultrasonic treatment at room temperature for 2-4 minutes to uniformly disperse the nanoparticles; S22, under an ice bath condition, adding a noble metal acid aqueous solution into the dispersion liquid in the step S21, and stirring for 2-4 minutes; S23, adding sodium citrate into the solution stirred in the step S22, stirring for 2-4 minutes, then addinga NaBH4 solution, and continuously stirring for 4-8 minutes; and S24, carrying out centrifugal treatment on the solution obtained after the reaction in the step S23, and then respectively dissolvingethanol and washing with water twice to obtain the SiO2 and precious metal composite nanoparticles. The composite nanoparticle has very strong absorption strength in an ultraviolet visible region, isan excellent nano-functional composite material, can be used for constructing a detection platform based on electrochemiluminescence or fluorescence resonance energy transfer, and is used for quantitative detection of a target object and the like.

Disclosed is a design structure for an improved semiconductor structure (e.g., a silicon germanium (SiGe) hetero-junction bipolar transistor) having a narrow essentially interstitial-free SIC pedestal with minimal overlap of the extrinsic base. Also, disclosed is a method of forming the transistor which uses laser annealing, as opposed to rapid thermal annealing, of the SIC pedestal to produce both a narrow SIC pedestal and an essentially interstitial-free collector. Thus, the resulting SiGe HBT transistor can be produced with narrower base and collector space-charge regions than can be achieved with conventional technology.

The invention relates to luminous enhanced terbium-doped nano microcrystalline glass and a preparation method thereof. The preparation method comprises the following steps of: (1) preparing mixed solution containing terbium ions and at least one of calcium, strontium and barium ions; (2) soaking nano micropore glass into the mixed solution for 0.5 to 50 hours; and (3) sintering the nano micropore glass soaked in the step (2) to form the luminous enhanced terbium-doped nano microcrystalline glass, wherein the sintering temperature is between 1,100 and 1,300 DEG C. Compared with single terbium-doped high silica glass, the luminous intensity of the luminous enhanced terbium-doped nano microcrystalline glass under the excitation of ultraviolet light and cathode rays is obviously enhanced; and the nano microcrystalline glass has excellent chemical stability, thermal stability and machinability, and has good application prospect in the optoelectronic fields of illumination, display, laser, information and the like.

The invention discloses a coal conveying vehicle sampling point selection method and system based on exclusive randomness. The method comprises the steps that S1, acquiring the size of a coal conveying vehicle and the number N of sampling points; s2, evenly dividing the roof area of the coal conveying vehicle into 18 areas; s3, selecting a sampling area, when N is smaller than or equal to 3, determining that the adjacent sampling area of any selected sampling area cannot be selected any more, and when N is larger than 3, selecting the sampling area according to the condition that N is equal to3, and then randomly selecting N3 different sampling areas from the remaining 15 areas; and S4, randomly generating sampling point coordinates in the selected sampling area. The system comprises a memory and a processor for operating the method. According to the embodiment of the invention, an exclusive random algorithm is adopted, so that the randomness of the positions of the vehicle sampling points is ensured, the positions of the sampling points cannot be concentrated in adjacent areas, the representativeness of the coal sample is improved, and the sampling result better conforms to the actual situation.

The invention relates to a bus stop arrival speed guiding controlling method of a bus and a system thereof. The bus stop arrival speed guiding controlling method of the bus comprises the steps that S1, whether the road segment is in overtaking or not is judged, if so, S2 is performed; otherwise, S4 is performed; S2, whether a current vehicle is the earliest to arrive at a station or not, if so, S7is performed; otherwise, S3 is performed; S3, the estimated arrival time of a previous vehicle in the time queue is acquired in real time as the threshold time, and S6 is performed; S4, whether a vehicle which needs to enter the same station exists in front or not is judged, if so, S5 is performed; otherwise, S7 is performed; S5, the estimated arrival time of the nearest vehicle in front is acquired in real time as the threshold time, and S6 is performed; S6, the current vehicle speed is guided and controlled based on the threshold time, and the estimated arrival time is updated and sent to the outside; and S7, according to station berth information and the current vehicle, the speed of the current vehicle is guided and controlled, and the estimated arrival time is updated and sent to theoutside. Compared with the prior art, the clustering phenomenon can be avoided.

The invention relates to a marinating material, a marinated beancurd sheet and a preparation method thereof, and belongs to the technical field of food processing. The marinating material comprises the following main components: tea leaves, xylooligosaccharide, edible salt, soy sauce, hericium erinaceus powder, bamboo shoot powder, a yeast extract, star anise, cinnamon, amomum tsaoko, clove, pepper, dried orange peel, myrcia, radix angelicae, licorice, ginger, amomum villosum, amomum cardamomum, netmeg and edible oil. The components achieve a synergistic effect; through addition of the marinating material during production of a marinated product, the effect of endowing the marinated product with a good mouth feel is achieved, and the health-care effects of inhibiting bacteria, helping digestion, promoting absorption, lowering blood pressure and blood fat and the like are achieved.

The invention discloses a fiber reinforced soil stirring device and a stirring method. The device comprises a feeding unit, a distributing unit, a stirring unit, a discharging unit and a computer control unit. The device sets relevant parameters through bundled software, and automatic control over the stirring and discharging processes is achieved. The stirring method of the stirring device includes the steps that chopped fiber filaments are in a suspended state through wind pressure, the chopped fiber filaments make contact with continuously-falling soil materials in the air, fiber mixed soil materials enter partition bins to be stirred, and finally the materials are stirred through the partition bins and then enter a large bin in a centralized mode to be stirred, therefore, the phenomenon of gathering into clusters generated due to the static effect of fiber filaments is avoided, and the stirring uniformity of fibers and the soil materials is enhanced.

The invention discloses a matte acrylic acid adhesive. The matte acrylic acid adhesive comprises, by weight, 70-80 parts of methyl methacrylate, 25-38 parts of ethyl acrylate, 15-18 parts of dimethyldiethoxylsilane, 35-45 parts of a solvent, 2-3 parts of nano-SiO2 powder, 1.2-1.8 parts of nano-Al2O3 powder, 0.2-0.5 parts of micron-sized SiO2 powder, 0.2-0.5 parts of micron-sized Al2O3 powder, 0.6-1 part of isocyanate, 4-6 parts of rosin resin, 3-6 parts of terpene resin, 1-1.5 parts of an azo-compound, 4-6 parts of a N-nitroso compound and 0.5-2 parts of a coupling agent. The coupling agent has a chemical formula of CH2=CH-Si(OC2H5)3. The matte acrylic acid adhesive improves acrylic acid adhesive roughness under the condition of no increasing of particle diameter, prevents cluster and settlement of SiO2 and Al2O3 powder in a system and improves adhesion with a base.