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70results about How to "Improve your own performance" patented technology

In-situ composite silicon-based multibasic oxide oxide aerogel material and preparation method thereof

The invention relates to an in-situ composite silicon-based multibasic oxide oxide aerogel material and its preparation method, especially to a multibasic oxide oxide aerogel material which is prepared by the following steps: using soluble glass as a silicon source, mixing metallic oxide corresponding water-soluble metal salt, adding acid or alkali to adjust pH value of the system so as to form multibasic oxide sol; mixing the multibasic oxide sol with a water-soluble organic solvent, filtering to remove produced precipitate so as to obtain salt-free multibasic oxide sol, carrying out a sol-gel method, aging, modifying and drying. By a mature silica aerogel technology, the multibasic oxide oxide aerogel material is prepared by in-situ polymerization of other oxide components which are not easy to separately prepare aerogel. In addition, the multibasic oxide oxide aerogel material has excellent properties, such as high temperature stability, high activity, magnetic property and the like, none of which are present in single-component silica aerogel. The product is widely applied in fields of high temperature insulation, sound insulation, catalysts, catalytic carriers, battery electrodes, electromagnetism, resistance, gas sensitivity, humidity sensitivity, luminescent materials and the like.
Owner:金承黎

Method for preparing special-shaped composite contact tape

The invention discloses a preparation method of a special composite contact belt, wherein, two or more clean strips with matched properties are heated rapidly in protective atmosphere according to a certain speed by a brushing mechanism and a high frequency induction heater, continuously rolled and compounded according to a certain processing rate under the condition of atmosphere protection such as hydrogen, nitrogen, argon, etc. after a die is precisely located, and formed a long strip with two or more layers. After the long strip carries out heat treatment, the long strip is rolled to the regulated thickness and divided into a plurality of micro sized strips on a precise stripping device. The micro sized strips are prepared into special composite contact strips after being shaped, rolled and molded by a precise die. The preparation method of the invention has the advantages that close combination can be formed and at the same time performance of material is protected by making use of skin effect of the high frequency induction heating; no large rolling equipment is needed; strength of interlayer combination is high and stable; longer strips can be continuously compounded; production efficiency is high by combination of precise stripping technology, thus being suitable for production in large amount.
Owner:兰溪市金铎金属材料科技有限公司

Complex surface circuit conformal spray printing method and equipment

The invention belongs to the field of electric fluid dynamics spray printing, and discloses a complex surface circuit conformal spray printing method and equipment. The equipment comprises a spherical motor module, a translation module and a conformal spray printing module. The translation module drives the spherical motor module to move in an X-axis direction and a Y-axis direction in a plane; the conformal spray printing module comprises a spray head part and an electric signal part; the spray head part moves up and down so as to realize a freedom degree of a Z-axis direction; the electric signal part applies voltage on an ink fluid and an electrode ring in an ink cartridge; the spherical motor module rotates around the X-axis direction, the Y-axis direction and the Z-axis direction so as to realize six-degree-of-freedom motion of an object to be spray-printed; a curve surface base plate is grounded, so that the electric potential of the object to be sprayed-printed is zero; and the voltage applied in the ink fluid is higher than the voltage applied in the electrode ring, so that a gradient electric potential difference is formed on the ink fluid, the electrode ring and the object to be spray-printed. Through the complex surface circuit conformal spray printing method and the equipment provided by the invention, a conformal patterning electric spray-printing process of a complex surface is realized, an application range of the electric spray-printing process is improved, the manufacturing cost is reduced, and the printing accuracy is improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Multi-layer residual coefficient image coding method based on compressed sensing

The invention discloses a multi-layer residual coefficient image coding method based on compressed sensing. The method comprises the steps of dividing noise into 17 layers and training the 17 layers; substituting the 17 newly trained denoising models into an LDAMP iteration algorithm to complete compressed sensing image reconstruction; carrying out compressed sensing reconstruction on each layer and predicting a lower-layer measurement value to obtain a residual error, and carrying out quantization by adopting a block adaptive quantizer with the same quantization bit depth in the coding method; wherein the information needing to be transmitted by the current layer of the image coding end is the difference value between the quantization result of the real measurement value and the quantization result of the prediction measurement values of the reconstructed images of the measurement values of all previous layers of the layer; and the current layer of the image decoding end receiving the transmission information of the corresponding layer of the coding end, obtaining a measurement value or a residual coefficient after adaptive arithmetic decoding, and the image reconstruction of the current layer of the decoding end utilizing the received and recovered image measurement values of all previous layers. According to the multi-layer residual coefficient image coding method based on compressed sensing provided by the invention, the rate distortion performance of image coding based on image compressed sensing reconstruction can be effectively improved.
Owner:XI AN JIAOTONG UNIV

Mobile terminal and antenna structure thereof

The invention discloses a mobile terminal and an antenna structure thereof. The antenna structure of the mobile terminal comprises a main board and an antenna main body connected with the main board, and further comprises an antenna tuning circuit located between the main board and the antenna main body, wherein the antenna tuning circuit comprises a tuning piece and a variable capacitor, one end of the tuning piece is directly connected with the main board, and the other end of the tuning piece is bent, and then connected with the main board through the variable capacitor. Accordingly, the antenna structure of the mobile terminal influences tuning frequency of an antenna by adjusting capacitance value of the variable capacitor, achieves tuning of the frequency of the antenna, greatly broadens the bandwidth of the antenna, and improves efficiency of the antenna. A circuit structure of the antenna structure of the mobile terminal is simple, and easy to achieve, and accordingly the antenna structure of the mobile terminal achieves the purposes of being low in cost and stable in performance. Additionally, electron devices of a USB (universal serial bus) connector, a microphone and the like are placed on the tuning piece, influences of the electron devices of the USB connector, the microphone and the like on the antenna are effectively reduced, performance of the antenna is improved, and simultaneously improvement of self performance of the electron devices of the USB connector, the microphone and the like is facilitated.
Owner:NUBIA TECHNOLOGY CO LTD

Processing and forming integration machine based on corrugated paper production

The invention discloses a processing and forming integration machine based on corrugated paper production. The processing and forming integration machine based on corrugated paper production comprisesa main machine body. A feeding cavity with a leftward opening is formed in the main machine body, a roller can be installed in the feeding cavity, and raw pulp paper is wound on the periphery of theroller. A control mechanism which can control the roller to rotate and downwards convey the raw pulp paper is arranged in the feeding cavity. A working cavity is formed in the lower side of the feeding cavity in a communicating mode, a fixing body is fixedly arranged on the top wall of the working cavity, and a fan blade cavity is formed in the fixing body. By the adoption of the processing and forming integration machine based on corrugated paper production, reinforced type corrugated paper can be manufactured in the modes of punch cutting, conveying, punch forming and hemp rope adhesion, theperformance effect of the corrugated paper in the process that other products are made of the corrugated paper can be effectively improved, and the breakage probability is reduced. The whole device is high in degree of automation, multiple linkages exist in the device, and the cost is effectively controlled.
Owner:GUANGZHOU FENGTIAN PACKAGING MATERIAL CO LTD

Preparation method of air-jetting solidification-type high-adsorbability non-woven fabric and high-adsorbability non-woven fabric

ActiveCN110016767AIncrease distribution spaceEvenly distributedNon-woven fabricsEngineeringComposite mesh
The invention relates to a preparation method of an air-jetting solidification-type high-adsorbability non-woven fabric. The method comprises the steps that firstly, an upper elastic fiber mesh, a lower elastic fiber mesh and a bamboo charcoal fiber mesh are prepared separately, then the bamboo charcoal fiber mesh covers the top face of the lower elastic fiber mesh for obtaining an overlaying mesh, the overlaying mesh is placed on a conveying curtain, and the conveying curtain is of a grid structure; the conveying curtain drives the overlaying mesh to move forward in the horizontal direction until the overlaying mesh passes through an airflow jetting area so as to obtain a composite mesh, in the process that the overlaying mesh passes through the airflow jetting area, air-jetting holes jetairflow downwards, and the airflow passes through the overlaying mesh and the conveying curtain in sequence and then is jetted into an air suction box; the upper elastic fiber mesh covers the top face of the composite mesh for obtaining a gray fabric, and the gray fabric is dried and cooled in sequence for obtaining the high-adsorbability non-woven fabric. According to the preparation method, theeven dispersion effect is good, exertion of the function of a bamboo charcoal fiber can be improved, leakage is not easily caused, and the comfort feeling is good.
Owner:WUHAN TEXTILE UNIV

Moon-pool protection device for flow chocking and wave absorbing, and system

The invention provides a moon-pool protection device for flow chocking and wave absorbing. The device comprises two buoys, wherein the two buoys are connected by an intermediate structure to constitute a main body structure of the protection device; the main body structure is fixed by an anchor chain; multiple rows of holes are formed in the intermediate structure along the length direction of theprotection device; multiple flaring water inlet holes are formed in a wave facing side of the main body structure and are uniformly distributed along the axial direction of the buoys; round jet holescorresponding to the flaring water inlet holes are formed above the main body structure; and the flaring water inlet holes are directly connected to the round jet holes. The invention also provides asystem constituted by the multiple moon-pool protection devices for flow chocking and wave absorbing. The device and the system provided by the invention have the beneficial effects that the structure main body is transformed and upgraded rationally; a blade-type flow absorbing device is added on the bottom to further flow absorbing, so the ability for flow chocking and wave absorbing is good; and the device has the advantages such as a simple structure, prevention of pollution, easy assembly, good wave absorbing effects and feasibility in batched production and can be promoted for use.
Owner:JIANGSU UNIV OF SCI & TECH

High-strength pervious concrete suitable for sponge city construction and preparation method of high-strength pervious concrete

The invention discloses high-strength pervious concrete suitable for sponge city construction and a preparation method, and particularly relates to the technical field of concrete materials, and the high-strength pervious concrete comprises cement, composite fibers, a composite reinforcing agent, water, a water reducing agent, a quick-setting early strength agent and aggregate. The composite fiber and the composite reinforcing agent in the formula are matched for use, so that the strength and the water permeability of the concrete can be effectively enhanced; the glass fibers, the basalt fibers and the polypropylene fibers are matched for use, so that the internal structural strength of the concrete can be further enhanced, and meanwhile, the composite fibers form a fiber network in the concrete, so that the high water permeability of the concrete can be effectively enhanced; and the nano silicon dioxide, the nano zirconium diboride powder and the nano silicon nitride in the composite reinforcing agent are matched to modify the composite fibers, so that the structural strength and the self performance of the composite fibers can be effectively enhanced, and the structural strength and the water permeability of the concrete are further improved.
Owner:扬州通惠系统集成科技有限公司
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