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151results about How to "Universal" patented technology

Method of decomposing hydrogen sulfide for preparation of hydrogen and elemental sulfur

The invention discloses a method of decomposing hydrogen sulfide for preparation of hydrogen and elemental sulfur, which belongs to the technical field of hydrogen production and gas purification. The invention is characterized in that: hydrogen sulfide or gas containing hydrogen sulfide is subjected to ionization through blockage of discharge by using a medium so as to form uniformly distributednon-equilibrium plasma, and hydrogen sulfide spontaneously decomposes into hydrogen and elemental sulfur in the plasma; when there is a photocatalyst in the plasma, energy in the photons of the photocatalyst can be utilized to promote decomposition of hydrogen sulfide, and complete conversion can be realized under proper conditions. All the frequently used solid photocatalysts can be used in the above mentioned process, e.g., titanium oxide, cerium oxide, zirconia, zinc oxide, cadmium oxide, copper oxide, molybdena, tungsten oxide, zinc sulfide, cadmium sulfide, copper sulfide, molybdenum sulfide, tungsten sulfide and a mixture composed of two or more selected from the above-mentioned photocatalysts; the photocatalysts can also be loaded on a porous material to prepare load type catalysts. The method provided in the invention is especially applicable to treatment of gas containing hydrogen sulfide in the industries of natural gas, petroleum and coal chemistry and is also applicable topreparation of hydrogen and elemental sulfur through dissociation of gas containing hydrogen sulfide in the fields of metallurgy, sea and the like. The method has no special requirements for or restriction on the source and composition of gas; thus, the method has universality to preparation of hydrogen through decomposition of hydrogen sulfide.
Owner:DALIAN UNIV OF TECH

User typical load curve construction method based on density clustering

The invention discloses a user typical load curve construction method based on density clustering. The user typical load curve construction method comprises the steps of (1) inputting the daily load time sequence of an object in a certain time interval, (2) conducting density clustering on the daily load time sequence by setting the searching radius epsilon and the minimum object number M according to the density variation of distribution of the normalized daily load time sequence in vector space, (3) dividing the object of the daily load time sequence into one or more time sequence clusters and one or more noise time sequence classes according to the results of the density clustering, and (4) extracting one or more typical load time sequences of a user. According to the characteristics of complex load changes of the user, the user typical load curve construction method uses the density variation of distribution of the normalized daily load time sequence in the vector space, the typical load time sequence of the user is extracted by setting reasonable density search parameters, the cluster number is not required to be appointed, noise loads can be removed, and the user typical load curve construction method is much suitable for extracting the one or more typical load time sequences in the user stage.
Owner:ZHEJIANG UNIV

General preparation method for reduced graphene oxide-based composite film

InactiveCN110127671AUniversalEasy to prepareGrapheneCarbon nanotubesCvd grapheneGraphene oxide paper
The invention provides a general preparation method for a reduced graphene oxide-based composite film. The method comprises the following steps: firstly preparing a graphene oxide-based mixed solution, preparing a graphene oxide-based composite film by using a manner such as vacuum suction filtration, spin coating, drop coating, blade coating and coating, putting the graphene oxide-based compositefilm into a reaction vessel, adding a liquid, performing sealing, and conducting a hydrothermal or solvothermal reduction reaction at a certain temperature to prepare the reduced graphene oxide-basedcomposite film, wherein the mixed solution can contain a polymer, an organic nano material, an inorganic nano material, a metal nano material and the like besides graphene oxide. The method providedby the invention has the advantages of high universality and a simple and convenient preparation process; the prepared reduced graphene oxide-based composite film can be further subjected to high-temperature reduction to obtain a reduced graphene oxide-based composite film with a higher graphene reduction degree and a more complete crystal structure; and the reduced graphene oxide-based compositefilm prepared by utilizing the method has good stability, adjustable thickness and crispness, and thermal conductivity, electrical conductance and catalytic performance of the composite film can be adjusted through different compounding.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC

Highway origin-destination traffic flow character extraction method

The utility model discloses an extraction method for characteristics of origin-destination traffic flow, which is characterized in that for the first step vehicle trip information is acquired in an area between the origin and the destination, and a relational database is formed based on the information; for the second step, according to the information from the first step, a sampling full-day O-D matrix Pkiv is formed based on a group of samples like investigation point, direction and vehicle model: with an investigation point or area as a unit, the group of sampling full-day O-D matrix Pkiv is collected and the sampling expansion of the group of sampling full-day O-D matrix Pkiv is corrected as the O-D data of gross sample with annual representativeness; for the third step, with SQL query method, the traffic flow characteristics can be acquired. The utility model has the advantages that the method organically integrates every step of data processing concerning with the O-D investigation and the section flow investigation based on the universal database, so that users can automatically recognize the investigation content and the coding form in a certain standard framework and various kind of O-D matrix and common traffic flow characteristics can be extracted automatically by the powerful SQL sentences.
Owner:SOUTHEAST UNIV

Visual nozzle

The invention discloses a visual nozzle that can be applied to simulating a real nozzle of a direct injection engine. The visual nozzle comprises a nozzle body, an adapting head and transparent glasses at an extended segment, wherein the nozzle body forms an internal flow path of the nozzle by means of clamping two pieces of transparent glasses and a precise gasket by using two clamp bodies, the gasket is capable of guaranteeing air tightness; the top of the nozzle body is connected with the adapting head, while the bottom of the nozzle body is connected with the transparent glasses at the extended segment, so as to form an external flow path of the nozzle. According to the visual nozzle disclosed by the invention, by means of simultaneously observing internal flow characteristics (such as cavitation, and generation, growth as well as rupture progresses of bubbles), and external spray characteristics (such as rupture, atomization and evaporation) of the nozzle, the internal and external characteristics of the nozzle are correlated, so that fracture and atomization progresses of liquid jet flows can be mastered comprehensively; the two-dimensional visual nozzle is relatively symmetrical in structure and convenient to process, is capable of realizing continuous test at high-temperature and high-pressure conditions; meanwhile, the internal and external flow paths of the nozzle are changeable in the shape, the structure as well as the size, and internal and external fluid characteristics of a nozzle hole under different conditions can be acquired, therefore, the visual nozzle is universal.
Owner:SHANGHAI JIAO TONG UNIV

Nano tin soldering method by using atomic force microscopy probe as welding gun

The invention relates to a nanometer tin soldering method which belongs to the technical field of nanometer and adopts an atomic force microprobe as a welding torch, specifically speaking: the atomic force microprobe, soldering tin material and welding mode are selected; an atomic force microscope is adopted to find a nanometer component to be welded, namely, to precisely position a welding point; soldering tin is dipped on a probe and then atomic force imaging scanning is carried out to find the original position which is the nanometer device selected in the second step, the height image is recorded and the scanning scope is shortened to lock the welding position on the nanometer component, then a bias voltage is applied on the probe of the atomic force microscope so that the probe can touch the surface of the nanometer component, then the scanning operation is kept and weld is carried out, then the bias voltage is removed and the normal atomic force microscope imaging state is returned after the welding operation is finished, the welding effect is inspected and the welding result is recorded; the nanometer welding operation on more than one places on the nanometer component is repeated and the welding result is recorded. The invention is a nanometer 'tin soldering technology' that is applied to the nanometer component and is precise in positioning, controllable in welding size, high in automation degree and strong in universality.
Owner:SHANGHAI JIAO TONG UNIV

Wrist reference bone segmentation method

The invention discloses a wrist reference segmentation method, which comprises the following steps of 1, extracting and preprocessing a reference bone region of interest image; 2, segmenting the reference bone region of interest image; and 3, post-processing the reference bone region of interest. According to the scoring method, the bone age is calculated by evaluating the mature indications of the reference bone combination, and the bone age calculated through the method is small in deviation. Due to the influence of the factors, such as the irregular shapes of the reference bones, the low contrast ratio of the reference bones and the soft tissues, the adjacent positions of the reference bones, etc., difficulty is increased for the experts to accurately evaluate the maturation indicationsof the reference bones. The reference bone segmentation accuracy is guaranteed, and meanwhile it is guaranteed that the reference bone segmentation method has higher universality. The method comprises the following steps of firstly, extracting a reference bone ROI image by adopting a Faster R-CNN; then, inputting the preprocessed reference bone ROI image into the ARU-Net to be segmented, adding the residual error mapping and an attention mechanism to the ARU-Net on the basis of traditional U-Net to improve the accuracy of reference bone segmentation and the utilization rate of features; and finally, eliminating the phenomena of edge sawteeth, holes and the like in a prediction result by adopting a flooding filling algorithm and the corrosion and expansion operation.
Owner:杭州安智康生物科技有限公司

Device and method realizing synergic effects of waste heat utilization, desulfurization wastewater zero-emission and smoke plume removal

PendingCN108285188ASimple processUniversalAuxillary pretreatmentWaste water treatment from gaseous effluentsSmoke plumeZero emission
The invention discloses a device and a method realizing synergic effects of waste heat utilization, desulfurization wastewater zero-emission and smoke plume removal, the device comprises a boiler, anair preheater, a dust remover, a desulfurization tower and a chimney which are sequentially connected through a pipeline, a wastewater sedimentation tank, a wastewater concentration tower and a wastewater flashing tower simultaneously are connected to corresponding equipment in the device, a high-temperature gas required in the working process of the wastewater flashing tower and the wastewater concentration tower is taken from high-temperature flue gas during the operation of the device; and generated gases are sent into the dust remover for dust removal circulation. An acoustic wave agglomeration device and a demister are disposed in a connecting pipe between the desulfurization tower and the chimney. The method comprises the steps of concentrating and flashing the high temperature fluegas in the process of operation of the desulfurization wastewater utilization device, and finally feeding the concentrated and flashed gas to the device for circulation, thereby achieving zero emission, discharged smoke plume can be reduced by use of synergic effects of the reduced flue gas temperature, the acoustic wave agglomeration device and the demister, and the goal of energy saving and environmental protection, wastewater zero-emission and exhaust emission reduction can be comprehensively realized.
Owner:NANJING CHANGRONG ACOUSTIC INC +2

White balance adjusting method and camera

The invention provides a white balance adjusting method, which is applicable to adjusting white balance of a photo. The white balance adjusting method comprises the following steps: acquiring a white photo as a calibrating photo; graying the white photo to obtain a standard calibrating photo; for a calibrating pixel in the standard calibrating photo, acquiring an RGB value and a gray value of the calibrating pixel; performing processing to obtain a corresponding RGB calibrating value according to the RGB value of the calibrating pixel; acquiring a photo with chromatic aberration to serve as a to-be-calibrated photo; S6, for a to-be-calibrated pixel in the to-be-calibrated photo, acquiring a to-be-calibrated RGB value of the to-be-calibrated pixel; performing processing to obtain an RGB standard value in which the chromatic aberration is removed according to the RGB to-be-calibrated value of the to-be-calibrated pixel and the RGB calibrating value; judging whether pixels that have not been calibrated exist in the to-be-calibrated photo or not; if pixels that have not been calibrated exist, returning to the steps above; and if pixels that have not been calibrated do not exist, the adjustment being finished. By means of the white balance adjusting method, the universality is higher, the visual effect of the photo is obviously improved, and the vigorousness and robustness are higher.
Owner:KONFOONG BIOTECH INT

Tactile interaction device and method for 360-degree suspension light field three-dimensional display system

The invention discloses a tactile interaction device and method for a 360-degree suspension light field three-dimensional display system, and belongs to the technical field of computer vision. The device comprises a Leap Motion arranged on one side of a high-speed rotating screen and used for collecting hand position information, a fingerstall with a vibration function and a processor used for processing information and transmitting signals. The processor is in communication connection with the Leap Motion to obtain hand position information, the processor is provided with a Bluetooth transmitting module, instructions are sent to the fingerstalls through the Bluetooth transmitting module to control vibration of the fingerstalls, and Bluetooth receiving modules are arranged in the fingerstalls. Finger information reading, coordinate conversion, model judgment, Bluetooth transmission, hardware driving and other steps are carried out to realize interaction of fingers and model force touch. When the fingers are in contact with the boundary of the display model within a certain range, the finger sleeves can exert vibration force on the fingers, and the effect of force tactile interaction is achieved. Namely, when the hand touches the display model, the fingers have vibration touch feeling. Therefore, more real sensory experience is provided for the user.
Owner:ZHEJIANG UNIV

Lithium transitional metal oxide and preparation method and application thereof

The invention discloses a lithium transitional metal oxide and a preparation method and an application thereof. The lithium transitional metal oxide is a Li<1+x>Ni<y>M<z>Mn<2-y-z>O<4-delta> material with a spinel structure, or aLi<2>M'O<3>.(1-a)LiM''<s>R<1-s>O<2> material with a layered structure, wherein x is greater than or equal to -0.1 and less than or equal to 0.2; y is greater than or equal to 0 and less than or equal to 0.6; z is greater than or equal to 0 and less than or equal to 1.25; y+z is greater than or equal to 0 and less than or equal to 1.25; <delta> is greater than or equal to 0 and less than or equal to 0.05; a is greater than or equal to 0 and less than 1; and s is greater than or equal to 0.8 and less than or equal to 1. According to the preparation method, a metal-organic coordination polymer precursor method is adopted; organic complex is terephthalic acid and derivatives thereof; and the metal-organic coordination polymer is subjected to heat treatment and high-temperature calcining to obtain the lithium transitional metal oxide. The synthetic method is simple in process and the cost is low, so that large-scale production of the positive electrode material of the lithium transitional metal oxide can be carried out favorably; and in addition, the prepared lithium transitional metal oxide has high crystal form, adjustable grain diameter from nanometer to micron, special appearance and specific crystal surface orientation, and excellent electrochemical performance when the lithium transitional metal oxide is used as the positive electrode material of the lithium ion battery.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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