925results about How to "Evenly distributed" patented technology

The present invention provides a method for reducing and/or controlling the variations of excess fiber length along the length of reeled fiber optic buffer tubes during the manufacture of the buffer tubes. The present invention varies any number, or combination, of parameters during the manufacture of buffer tubes to achieve a substantially uniform excess fiber length along a reeled buffer tube. One embodiment of the inventive method uses monotonically decaying draw or take-up tension of the buffer tubes during winding, combined with a stiffness-compliant pad placed on the reel core to aid in providing a substantially uniform excess fiber length in the tube, while another embodiment uses a monotonically increasing angular speed of the reel in combination with the stiffness-compliant pad on the reel core. In yet another embodiment a pad is placed either periodically or continuously in the windings of the buffer tube to provide an absorbing layer for the residual stresses existing in the buffer tube as it is reeled and after the reeling is complete, combined with re-reeling the buffer tube onto a second reel after the buffer tube has cooled (after manufacture), where the pad is removed during the re-reeling process. Additionally, the present invention can have the layers of buffer tube separated with rigid, cylindrical panels separating the layers. The present inventive method also combines any, or all, of the above steps to aid in achieving a substantially uniform excess fiber length along the length of the reeled buffer tube.

The invention provides an image denoising method based on generative adversarial networks, and belongs to the technical field of computer vision. The method comprises the following steps: (1) designing a neural network for estimation for noise intensity of an image containing noises; (2) using image blocks in an image library to add noises of the intensity according to the estimated noise intensity to use the same as samples of training the networks; (3) in network training, designing a new generation network and discrimination network, and adopting a form of fixing the generation network to train the discrimination network and fixing discrimination network parameters to train the generation network to enable the networks to carry out adversarial training; and (4) using the trained generation network as a denoising network, and selecting a network parameter according to a result, which is obtained by the noise recognition network, to denoise the image containing the noises. The methodhas the effects and the advantages that a visual effect of the denoised image is improved without the need for manual intervention for adjusting the parameter, and texture details of the image can bebetter restored.

The present invention discloses a Drug-eluting stent (DES) with multiple coating layer, its preparation method and application. Said stent consisting stent and coating layer convered on the stent surface. It is characterized by that the surface of the stent has 1-4 layers of coating layers, in which at least two layers are medicine-carried layer, and said medicine-carried layer is composed of (wt%) 0.5-99% of polymer, 0-10% of additive and 0.5-99% of active component, and between the medicine-carried layer and stent a base layer can be set so as to raise the anchoring force of medicine-carried layer and stent, and the surface of medicine-carried layer also can be more coated with a surface layer.

The invention provides a mold for producing a glass container and belongs to the technical field of mold. The mold includes a pair of half bottle molds that are opposite to each other, a bottle die cavity is composed of a bottle body cavity and a bottleneck cavity and is formed on the inner wall of each of the half bottle molds. The mold is characterized in that heat-insulating holes are regularly distributed around the bottleneck cavity at the upper part of the half bottle mold, so the temperature around the bottleneck cavity can be improved, which is helpful to lead the materials to distribute evenly during the two blowing processes and can guarantee that the wall thickness of the bottleneck is uniform.

The invention belongs to the technical field of nano composite materials and particularly relates to a metal organic frame composite material and a preparation method thereof. The preparation method comprises the steps of adding metal ions and organic ligand into polymer nanowire solution with a core-shell structure to form mixed solution; under the room temperature, crystallizing to obtain the polymer nanowire composite with the metal organic frame/core-shell structure. The composite has the geometric shape same as that of the crystal of the pure metal frame compound, the polymer nanowires penetrate through and cover the single crystal particle, and the particles are connected by the polymer nanowires. In addition, the metal organic frame nanowire network composite growing along the polymer nanowires can be obtained. Due to addition of the polymer nanowires, functional groups or particles can be introduced, and the functionality of the metal organic frame composite material is improved. The composite material has the advantages that the preparation process is simplified, the stability of macroscopic aggregates of the material is improved and the actual application of the material is facilitated.

The present invention discloses preparation and application of perovskite nanowires, a photoelectric detector and a solar cell. A preparation method of the perovskite nanowires comprises: (1) dissolving iodinated methylamine and haloid of lead in dimethyl formamide solution to prepare lead-halide perovskite precursor solution; (2) carrying out ultraviolet and ozone treatment on a substrate for at least 30 minutes to obtain the substrate with hydrophilcity; (3) roughening the edge of one end of the substrate and dispensing or spraying the lead-halide perovskite precursor solution on the substrate; and then jacking up the roughened edge end to enable an included angle to be formed between the substrate and the horizontal plane, carrying out standing and heating the substrate to obtain the lead-halide perovskite nanowires. According to the present invention, the lead-halide perovskite nanowires which are uniform in density and are ordered in direction can grow in a selective region of the substrate; and moreover, the grown lead-halide perovskite can be well combined with other parts or preparation methods of existing devices (for example, the lead-halide perovskite can be combined with other parts of the existing devices into the photoelectric detector, the solar cell and the like), so that performance of the devices are improved.

A light emitting device having a plurality of light emitting cells is disclosed. The light emitting device comprises a substrate; a plurality of light emitting cells positioned on the substrate to be spaced apart from one another, each of the light emitting cells comprising a p-type lower semiconductor layer, an active layer and an n-type upper semiconductor layer; p-electrodes positioned to be spaced apart from one another between the substrate and the light emitting cells, the respective p-electrodes being electrically connected to the corresponding lower semiconductor layers, each of the p-electrodes having an extension extending toward adjacent one of the light emitting cells; n-electrodes disposed on upper surfaces of the respective light emitting cells, wherein a contact surface of each of the n-electrodes electrically contacting with each light emitting cell exists both sides of any straight line that bisects the light emitting cell across the center of the upper surface of the light emitting cell; a side insulating layer for covering sides of the light emitting cells; and wires for connecting the p-electrodes and the n-electrodes, the wires being spaced apart from the sides of the light emitting cells by the side insulating layer.

The invention relates to an intelligent pan with a temperature measuring function. The intelligent pan comprises a pan body and a handle, and is characterized in that an attached bottom is arranged on the bottom face of the pan body, a thermocouple is arranged at the joint of the pan body and the attached bottom, the detection end of the thermocouple is hidden near the center position of the bottom face of the pan body and makes contact with the bottom face of the pan body, and a temperature measuring structure for directly detecting the center position and periphery of the pan body is formed; a circuit board and a battery are arranged in the handle, a signal acquiring and processing circuit and a wireless signal output circuit are arranged in the circuit board, the signal output end of the thermocouple is connected with the signal input end of the signal acquiring and processing circuit, the output end of the signal acquiring and processing circuit is connected with the input end of the wireless signal output circuit, and the output end of the wireless signal output circuit is externally communicated with kitchen equipment or wireless communication equipment in the mode of transmitting wireless signals outwards. The temperature measuring structure for directly detecting the center position and periphery of the pan body is formed, and the advantages of being uniform in distribution of temperature measuring points, good in hiding performance, firm, durable, safe to use, precise in temperature measuring, wide in temperature measuring range, high in efficiency and simple in manufacturing process are achieved.

The invention discloses a method for preparing a titanium dioxide nanotube array, which comprises the following steps: grinding the surface of a titanium sheet by using abrasive paper, polishing by using chemical polishing solution, and drying for later use; preparing electrolyte, wherein a fluoride is used as a solute, water is used as a solvent and an alcohol additive is added; preparing an electrolytic cell having two electrode systems, wherein a titanium sheet is used as an anode, a platinum sheet is used as a counter electrode, and a layer of TiO2 nanotube array can be formed on the surface of the titanium sheet by electrochemical anodic oxidation; subjecting the anodically oxidized titanium sheet to ultrasonic cleaning in acidic solution and drying; and performing anodic oxidation again by using the titanium sheet as the anode, and thus, forming the TiO2 nanotube array with uniform pipe diameter and flat surface on the surface of the titanium sheet. In the method, the problems of non-uniform tube diameter, uneven nantube surface and irregular array of two-step anodic oxidization are solved, and the titanium dioxide nanotube array with more regular shape is formed.

The invention discloses a rare earth alloy powder-modified Ti(C,N)-based metal ceramic and a preparation method of the metal ceramic. The metal ceramic comprises Co and Ni or at least two of components selected from Co, Ni as well as Fe as a bonding phase, Ti(C,N) as a basic hard phase and optionally at least one of metallic carbides; and a rare earth alloy powder modifier 0.1-3wt% of the total mass of the metal ceramic. The preparation method comprises treating a raw material through a wet-grinding and mixing process, a die-forming process, a vacuum-degreasing process and a low-pressure sintering process to prepare the rare earth alloy powder-modified Ti(C,N)-based metal ceramic. On the premise of keeping high hardness and high wear resistance, the Ti(C,N)-based metal ceramic prepared according to the invention has excellent comprehensive performance, can be greatly improved in strength and tenacity and can also be widely applied to various cutting tools and wear-resistant parts.

The invention discloses a method for adjusting face plumpness in an image. The method comprises the following steps of: establishing a three-dimensional face model; acquiring 54 feature points of a face from the established three-dimensional face model; adjusting the positions of the acquired 54 feature points according to a linear regression equation of the soft tissue thickness of the face feature points about age and weight and plumpness adjusting parameters input by a user; establishing a full rank linear system by adopting a Laplacian deformation algorithm and using the position-adjusted 54 feature points serving as a constrained point set and the face apex in the three-dimensional face model, and solving a linear equation set to obtain an adjusted three-dimensional face model; performing triangular mesh parameterization on the original image; and changing the position of a triangular mesh apex of the original image under the drive of the adjusted three-dimensional face model, and performing texture mapping to obtain an adjusted image. By adopting the Laplacian deformation technology for keeping detail features, the face plumpness is adjusted, and most detail feature information on the face is kept at the same time.

An evaporator utilizes micro-channel tubes, and more particularly, has a structure of a heat exchanger using micro-channel tubes, which is applied to an evaporator of a household air conditioner. The evaporator, using micro-channel tubes, includes a plurality of heat exchanging units, each heat exchanging unit including a plurality of the micro-channel tubes installed between a pair of headers, and an integral header to transmit refrigerant between the neighboring heat exchanging units.

The invention relates to a junction box of a solar photovoltaic generating unit and belongs to the technical field of solar power component. The junction box comprises a box cover, a box body and an electric switching device consisting of a set of bypass diodes; the electric switching device is arranged inside the box body; the box cover is arranged on the box body; the electric switching device also comprises a set of radiating ribs which at least have the same number with the bypass diodes; each bypass diode is arranged on the radiating rib; two sides of the length direction of the box body form a box wing respectively; the bottom of the outer side of the middle part in the length direction of the box body is alternately extended with convex strips; a ventilating channel is formed between two convex strips; and the ventilating channel is communicated with a ventilating port which is arranged on the box body and is communicated with outside. The junction box has the advantages that the bypass diode is fixed on the radiating rib; heat produced by the bypass diode is evenly dissipated through the radiating rib; the bottom of the box body is extended with the convex strips; and after the box body is arranged on a solar photovoltaic cell plate, the box body does not shade the solar photovoltaic cell plate so as to facilitate heat dissipation.

The invention relates to a preparing method for a powder metallurgy high-entropy alloy based composite material, and belongs to the field of powder metallurgy materials. The preparing method includes the steps that all components are prepared and taken according to component proportions of a designed high-entropy alloy matrix, and high-entropy alloy powder is prepared through a gas atomization method; and then according to the component proportions of the designed high-entropy alloy based composite material, the high-entropy alloy powder and wild phase titanium diboride powder are prepared and taken, and rapid sintering molding is achieved after even mixing is carried out. According to the preparing method, the atomization method is adopted for preparing spherical high-entropy alloy powder with relatively-even ingredients in advance, and therefore a simple solid solution phase structure of a high-entropy alloy is guaranteed; and discharging plasma rapid sintering is adopted for preparing the needed powder metallurgy high-entropy alloy based composite material, and therefore the shortcoming that the material is prepared with metal powder as a raw material through a powder metallurgy method traditionally, and consequently the high-entropy alloy of the simple solid solution structure is difficult to obtain is overcome. The preparing method is simple in process procedure; according to the prepared powder metallurgy high-entropy alloy based composite material, titanium diboride is evenly distributed, reinforcement and base body interface bonding is better, the comprehensive performance is more excellent, the specific strength is high, the specific rigidity is high, and the abrasive resistance and the corrosion resistance are excellent. The preparing method is suitable for industrial production.

The invention provides a cellulose/silver nano composite material and a preparation method thereof. In the method, the composite material is prepared by using solution of microcrystalline cellulose, a silver salt and a reducer as raw materials and N,N-dimethylacetylamide (DMAc) as solvent and by using a microwave radiation processing method. The cellulose/silver nano composite material prepared by the method has the advantage that the silver nanoparticles have uniform particle size and can uniformly distribute on a cellulose substrate, and therefore has a promising application prospect in biochemical field and in terms of antibacterial performance. The preparation method has the advantages of greatly simplifying production technical process, saving time, reducing cost, along with cheap raw materials, simple process, convenient operation, quick preparation and easily controllable technical conditions. Meanwhile, the preparation method does not require complex and expensive equipment and is favorable for industrial promotion.

Low loss, high reflectivity wide band mirror films provide a desired mix of specular reflection and diffuse reflection or scattering to provide semi-specular reflectivity. The mirror films generally include both a specularly reflective multilayer optical film (MOF) having a wide reflection band, and a scattering layer. In some cases a low refractive index TIR layer is sandwiched between the MOF and the scattering layer. In other cases the scattering layer contacts the MOF directly. In embodiments that include the TIR layer, the TIR layer preferably has a nanovoided morphology and includes a plurality of particles and a polymer binder. In embodiments wherein the scattering layer contacts the MOF directly, the scattering layer preferably also has a nanovoided morphology and includes a plurality of particles and a polymer binder.

The invention discloses a preparation method of a fluorescent waterborne polyurethane emulsion based on chromophore in diisocyanate. The preparation method is characterized by comprising the following steps of: enabling monoamine or monohydric alcohol containing fluorescent chromophore to be reacted with isocyanate, or enabling diamine or dihydric alcohol containing the fluorescent chromophore to be reacted with diisocyanate with a symmetric structure to synthesize diisocyanate containing the fluorescent chromophore, and then combining the diisocyanate containing the fluorescent chromophore with common diisocyanate to partially or completely substitute for the common diisocyanate to prepare the fluorescent waterborne polyurethane. According to the preparation method disclosed by the invention, the hard segment content and type of the prepared fluorescent waterborne polyurethane and the content (2-40wt%) of the fluorescent chromophore are controllable by adjusting the types and proportions of the diisocyanate and a chain extender, and the prepared fluorescent waterborne polyurethane has the advantages that the fluorescent chromophore is uniformly distributed and difficult to migrate, the fluorescent intensity is good in durability, and improvement in terms of optical, thermal and certain functional characteristics can be achieved while the fluorescent property is achieved.

The invention discloses a method for welding a bottom plate of a large flat-bottom storage tank, which has the advantage of simple processing process and can effectively reduce the welding deformation of the bottom plate of the large flat-bottom storage tank, improve the evenness of the bottom plate and prolong the service life of the storage tank, solving the technical problems of large bottom plate deformation, poor storage tank strength and rigidity, service life reduction, and the like in the prior art. The method mainly comprises the following steps of: butt jointing or lap jointing a plurality of steel plates to form a bottom plate of a round flat-bottom storage tank; then paving a plurality of fan-shaped steel plates around the circumference of the bottom plate of the flat-bottom storage tank to form an annular edge plate; partially welding adjacent fan-shaped steel plates from outside to inside; then coaxially putting cylindrical wall plates; and welding according to a welding sequence of spot fixing and welding from outside to inside.

The invention provides low-temperature polycrystalline silicon thin film and a production method thereof. The production method is used for producing low-temperature polycrystalline silicon thin film low in surface roughness, large in crystalline grain size and uniform in crystalline grain distribution and includes forming a buffer layer on a substrate, forming a seed crystal layer with crystal nucleus uniformly distributed on the buffer layer by means of the pattern forming technology; forming a non-crystalline-silicon layer on the seed crystal layer; and subjecting the non-crystalline-silicon layer to excimer laser annealing. The crystalline grains of the low-temperature polycrystalline silicon thin film produced by the production method are large in size and uniform in distribution, and further, the low-temperature polycrystalline silicon thin film is quite low in surface roughness, and accordingly solves the problems of low migration rate, high leakage current of thin-film transistors and unevenness of the migration rate and threshold voltage when being applied to a back plate of a low-temperature polycrystalline silicon display screen.

A system and method for adapting the behavior of an interactive presence based application on a mobile computing device associated with a user; comprising: providing a plurality of multifunctional beacons; wherein the plurality of beacons provide a mesh wireless network; wherein each of the plurality of beacons provides a local wireless connection; providing an OMS backend for management of the plurality of beacons; wherein the OMS backend runs on a server; connecting by the mobile device to one or both of the mesh network and a local network; wherein the plurality of beacons report the connecting to the OMS backend; determining by the OMS backend the proximity of the mobile device to one or more of the plurality of beacons based on the reported connections; and adapting the behavior of the application and/or the beacons based on the determined proximity.

Disclosed herein may be a photosensitive composition, a microfabricated structure including the same, a device including the microfabricated structure, and methods of fabricating the microfabricated structure and the device. The photosensitive composition, including a multifunctional photosensitive resin, a two-photon photosensitizer, an organic solvent, and a silver compound, may be subjected to two- or three-dimensional microfabrication, thus realizing the microfabricated structure containing silver nanoparticles.

The invention provides a preparation method of biomass-based nitrogen-containing porous carbon with the advantages that simplicity is realized; the implementation is easy; the cost is low. According to the method, the in-situ doping of nitrogen atoms in the carbon material preparation process is realized by a one-step foaming method; cheap and reproducible protein-rich plants are used as carbon precursors; the in-situ doping of nitrogen atoms in the carbon material preparation process is favorably realized, so that the doping content is controllable, and the distribution is uniform. All raw materials are renewable resources; green and environment-friendly effects are achieved; simplicity is realized; the obtaining is easy; the resources are rich; the cost is low. Meanwhile, the method provided by the invention has the advantages that the nitrogen-doped porous carbon material with the large specific surface area can be obtained without complicated multistep operation; the preparation process is simple; the use of high-pollution chemical reagents such as ZnC12, strong base and strong acid is avoided; the environment-friendly effect is achieved; the operation is convenient; equipment cannot be corroded in the production and use processes; the method is suitable for large-scale production.

The invention discloses a method for manufacturing a doped optical fibre preform by MCVD (modified chemical vapour deposition), comprising the following steps of: orderly depositing an inner cladding and a loose ash core layer in a deposition tube; reducing the intake port end of the deposition tube to cause the inner diameter of the end to be less than or equal to the inner diameter of the loose ash core layer; heading and snapping the tail end of the deposition tube to close the tail end of the deposition tube; injecting solution containing rare-earth elements or transition metal elements in the deposition tube, and transversally installing the deposition tube on a lathe to soak the loose ash core layer; sintering the loose ash core layer into a glass layer; and melting-reducing the deposition tube, the inner cladding and the loose ash core layer into a solid preform. In the method disclosed by the invention, the deposition tube is horizontally placed to rotationally soak, the purpose of high-concentration doping can be realized only by the need of a small amount of rare-earth solution, and 80-90% of rare-earth solution can be saved, thereby decreasing manufacturing cost. Simultaneously, the distribution of rare-earth elements in the longitudinal direction of preform core layer is enabled to be more uniform, thereby further increasing the rare-earth doping concentration of preform core layer.

A hair dryer including a blower and a dryer head having a narrow elongated nozzle shaped to generate airflow in the form of a thin blade of air. The hair dryer includes an airflow evening structure functionally coupled to the nozzle that more evenly distribute airflow of the thin blade of air. The airflow evening structure is a sleeve rotatably coupled about the nozzle and includes a plurality of diversely shaped nozzle masks disposed about the sleeve, each shaped to restrict airflow through the nozzle in varying modes.

In a fuel-cell stack in which a plurality of cells are stacked, each of the cells including a membrane electrode assembly which is composed of a polyelectrolyte membrane and a pair of electrodes sandwiching the polyelectrolyte membrane, and a pair of separators by which the membrane electrode assembly is sandwiched, where the electrodes each have a catalytic layer brought into contact with the polyelectrolyte membrane and a gas diffusion layer brought into contact with the separator, and where a material of the gas diffusion layers is formed from carbon fiber woven cloth. In this fuel-cell stack, the warp direction and weft direction of the carbon fiber woven cloth are so set as to be uniform in all the cells with respect to the primary direction of the gas flow passages of the separators.

A system for uniformly delivering treatment compositions to fabrics in a fabric article drying appliance. The system also provides for efficient delivery of treatment compositions to fabrics in a fabric article drying appliance. A method is also provided for the uniform and efficient delivery of treatment compositions to fabrics in fabric article drying appliances.

The invention provides a carotenoid preparation which relates to oil suspension, a feed which contains the carotenoid preparation, a method used for preparing the feed, and the use as additives of animal feed, food, cosmetics and/or medicines used for the carotenoid preparation. Effective compositions in the feed grains are uniformly distributed; furthermore, most of the effective compositions are distributed in the grains, thus reducing the surface oxidation loss; the carotenoid exists in a dissolved state, thus being beneficial for the absorption and utilization of animals; the animal testsalso show that the coloring effect of the fish is extremely good after the feed grains are used for feeding the fish.

The invention relates to a fracturing fluid and fracturing method for increasing the application efficiency of a support agent in a fractured crack. The fracturing fluid is a water-based fracturing fluid and comprises sand-suspending fibers and a thickening agent, wherein the sand-suspending fibers are hydrophilic high-strength bent organic fibers or inorganic fibers. The fracturing method comprises the step of injecting the fracturing fluid serving as a sand carrying fluid into a formation crack, wherein the injection parameters of the sand-carrying fluid are as follows: the consumption is 40-3000m<3> and the injection speed is 2.0-15.0m<3>/min. The support agent is suspended by using a three-dimensional net structure formed by the sand-suspending fibers. According to the method, the content of guar gum in the sand-carrying fluid can be reduced, and the application efficiency of the support agent in a longitudinal direction is increased, and therefore, the support agent is more uniformly distributed in the longitudinal direction of a manual fractured crack, the guide performance of the crack in the whole longitudinal profile is improved, and the economic benefit of fracturing constructing is increased.

The invention relates to nonmagnetic hard alloy powder made of nickel-tungsten, nickel-chromium agglutinate phases, and a producing method thereof. The nonmagnetic hard alloy powder is produced by using nickel-tungsten alloy powder, nickel-tungsten-chromium alloy powder, nickel-chromium alloy powder or nickel-chromium-aluminum alloy as agglutinate phases, using wolfram carbine or wolfram carbine+chromium carbide as a hard phase, then agglomerating or spray drying, and sintering. By using the nonmagnetic hard alloy powder, nonmagnetic hard alloy coats and nonmagnetic hard alloy parts can be produced.

Methods and apparatus provide for: receiving tokens from a plurality of resources, where the tokens are exchange media for permitting a plurality of requesters to access an associated one of the resources for a period of time; allocating the tokens to respective requester groups into which the plurality of requesters have been assigned; receiving requests for one or more of the tokens from one or more of the requesters and granting, from the allocated tokens, one or more of the tokens to the requesters based on token granting criteria; and re-distributing unused tokens from one or more requester groups to one or more other requester groups based on priorities assigned to the requester groups; and dynamically altering the priorities assigned to the requester groups when a number of unused tokens of one or more of the requester groups has fallen below a threshold.