157results about How to "Optimize spatial structure" patented technology

The invention discloses a method for transplanting trees with whole canopy, which comprises the following steps: a, determining the size of mud balls and cutting roots; b, pruning; c, digging out themud balls and packaging; d, preparing a plant pit; e, planting; and f, maintaining. The invention aims to overcome the defects in the prior art to provide the method for transplanting the trees with whole canopy, which is scientific, reasonably, mature, orderly, and capable of improving the survival rate of the transplanted trees. The method for transplanting the trees with whole canopy has the survival rate of the trees of above 85 percent, ensures that the transplanted trees have good visual effect, and simultaneously achieves good economic and ecological benefits.

The invention discloses a preparation method of bacterial cellulose based carbon nanofibers and relates to a preparation technology of a carbon fiber material. The preparation method comprises the following steps: carrying out purification treatment on bacterial cellulose obtained by bacterial fermentation and carrying out freeze drying, carrying out carbonization treatment by putting the dried bacterial cellulose material into an atmosphere furnace and heating to 600-1200 DEG C, further heating the processed material to graphitize the material, and cooling to obtain the bacterial cellulose based carbon nanofiber material having a three-dimensional net structure. The preparation technology is simple and easy to carry out, is convenient to operate and has low cost. The obtained bacterial cellulose based carbon nanofiber has a good spatial net structure, has excellent mechanical property, thermal stability and conductivity, and can be applied in fields of electron devices, special composite materials, high efficient catalytic materials, biological materials and the like.

The invention belongs to the technical field of biosensors, and in particular discloses an electrochemical sensor based on a metal organic framework-vertical graphene composite structure and a preparation method thereof. The preparation method specifically comprises the following steps: (1) growing vertical graphene on a stainless steel substrate; (2) synthesizing various different metal organic framework (MOF for short) materials such as ZIF-8, KAUST-1 and Ni-MIL-77 by taking the vertical graphene on the stainless steel substrate as a template; and (4) constructing the electrochemical sensorby taking the MOF-vertical graphene composite nanostructure as an electrode material. The electrochemical sensor has higher electric conductivity, larger specific surface area and more types of responsive substance surfaces, and the preparation method is relatively clear, different MOFs can be made by selecting materials according to performance of chemical reactions directly, and the spatial structure of the MOF material can be altered according to performance demand, so that the electrochemical sensor which further meets the demand can be manufactured more easily, and is wide in applicationrange.

The invention provides an electric vehicle wireless charging system. The electric vehicle wireless charging system comprises an electrical energy conversion emitting device and an electrical energy conversion receiving device, wherein the electrical energy conversion emitting device comprises a high-frequency inverter and a compensation capacitor which are respectively connected with the two ends of an emitting coil, and the high-frequency inverter is connected with the compensation capacitor; the electrical energy conversion receiving device comprises a compensation capacitor and an AC/DC conversion device, the compensation capacitor is connected with the two ends of a receiving coil, and the AC/DC conversion device is connected with the two ends of a load coil. Compared with the prior art, the electric vehicle wireless charging system not only resolves the problem that a battery of an electric vehicle is low in energy density, but also can reflect interaction between the electric vehicle and a power grid during charging better, and weaken influence on the power grid caused by charging of the electric vehicle.

The invention discloses a method for image processing based on a matrix variable variation self-encoder so that a problem of damaging the spatial structure by image vectorization processing can be solved and thus image reconstruction, denoising and completion can be realized. Different from the traditional VAE, the method has the following advantages: the input, hidden layer features, latent variable distribution parameters of the model are described by using an inherent expression form -2D matrix of the image; with the definition of matrix Gaussian distribution and related properties, an explicit expression of an objective function of a novel model is deduced and then model parameters are calculated by using a stochastic gradient descent algorithm. In the model, modeling of the spatial structure and statistical information of the image data is carried out well because the involved modeling process is oriented at the matrix variable, so that the image reconstruction quality is enhanced, noises are removed, and the image completion is realized.

The invention discloses a method for improving meat quality, comprising the following steps: (1) raw material processing: beef is used as raw material; and external fat, tendons and dirt are removed, and then the beef is trimmed and divided into regular beef blocks according to different parts; (2) pepsin tenderization: 0.6mg/g of pepsin liquor is injected to different parts of the divided beef material; the beef material is rolled and rubbed for 10 to 20 minutes; and the beef material is preserved at the temperature of 40 DEG C for 10 minutes; and (3) TG enzyme cross linking: 4.2 mL of TG enzyme liquor is drawn by an injector and injected at different parts of the meat; the add concentration of the TG enzyme is 7Mu/g; the addition amount of NaCl is 0.75 percent of the beef; and then the beef is rolled and rubbed for 10 to 20 minutes, and the beef is preserved at the temperature of 40 to 55 DEG C for 90 to 180 minutes. The method can improve the nutritional performance, the mouth feel and the appearance formability of the beef.

The invention provides a dye mesoporous adsorbent taking rice hulls as templates and silicon sources and a preparation method thereof, belonging to the technical field of fine chemical industry. The dye mesoporous adsorbent product is M-TiO2-SiO2, wherein M is Sc, or/and Vr, or/and Cd, or/and Mn, or/and Fe, or/and Co, or/and Ni, or/and Cu, or/and Zn, or/and Cr, or/and Hg, or/and Ag, or/and Au, or/and Pb. The preparation method comprises the following steps of: template pretreatment, ion exchange, sol-gel reaction and high-temperature calcination to remove the templates to obtain a mesoporous material. The rice hulls which are used as the templates have wide sources and low production cost and are environment-friendly; silicon dioxide existing in the rice hulls automatically deposits, and titanium dioxide and transition metals are doped into the material at the same time, thereby well improving the adsorption property and space structure of the material; and the obtained material has stable performance at high temperature, has simple preparation processes and mild conditions, is pollution-free, has renewable adsorptivity, and can be used for treating waste water of industrial organic dyes.

The invention relates to the field of groundwater pollution control and remediation, and particularly relates to a permeable reactive wall material and a preparation method thereof. The permeable reactive wall material provided by the invention comprises the following components in percentage by weight: 45%-55% of iron powder, 5%-10% of zeolite and 40-50% of activated carbon, wherein the percentage sum of the components is 100%. According to the preparation method, iron powder, zeolite and activated carbon are mixed in a specific proportion, so that the comprehensive treatment efficiency of the materials on water pollutants is improved, the use amount of the reaction materials is reduced, the production and construction cost of the product is reduced, and the market competitive power is enhanced.

The invention discloses a catalyst for preparing multi-walled carbon nanotubes, and a preparation method and an application thereof. The catalyst adopts MgO as a carrier, metal Fe, Co or Ni as an active component and metal Mo as an auxiliary agent, and the chemical general formula of the catalyst can be expressed as xMa-Mob/MgO, wherein x is the molar percentage of M in MgO, M is one of Fe, Co andNi, and a:b represents a molar ratio of M to Mo. The catalyst can form a foam-like porous loose structure, and has the advantages of high loading capacity, large specific surface area and favorable activity, so a sufficient space is provided for the growth of carbon nanotubes; and the high-quality carbon nanotubes can be prepared. The catalyst has the advantages of simple preparation method, safeand feasible preparation process, good large-scale preparation activity, large specific surface area (up to 154 m<2>/g), excellent space structure and the like. The high-quality carbon nanotubes canbe prepared by using the catalyst, I_G/I_D can reach 17, the average diameter is 8.7 nm, and the carbon content of crude carbon nanotubes exceeds 92%.

The invention discloses a limit sensing method. The limit sensing method comprises steps that a first contact block and a second contact block are respectively arranged on a fixed equipment zero point portion and a mobile device; a motor used for driving the mobile device to operate is operated, and a real-time characteristic parameter of the motor is acquired; according to the real-time characteristic parameter of the motor, a locked-rotor detection method based on a characteristic parameter threshold is employed to carry out locked-rotor detection on the motor in real time; whether the real-time characteristic parameter is larger than the preset characteristic parameter threshold is monitored; whether arrival at the zero point portion is realized is determined. Compared with the prior art, the method is advantaged in that self controllable locked-rotor characteristic state of the motor is utilized, trigger type components can be saved, designing a contact type block is only required, and an industrial design space structure is optimized. The locked-rotor characteristic parameter of the motor is employed, program determination for the characteristic parameter is carried out through a control system, and zero point determination on the industrial control equipment is accomplished.

The invention discloses nano-grade temperature-resisting and salt-resisting cross-linked polymer microspheres and a preparation method thereof, and belongs to the technical field of polymer microspheres. The nano-grade temperature-resisting and salt-resisting cross-linked polymer microspheres are prepared from the following components in parts by weight: 40 to 48 parts of acrylamide, 15 to 20 parts of acrylic acid, 12 to 22 parts of 2-acryloylamino-2-sodium methyl propanesulfonate, 5 to 8 parts of a surfactant, 45 to 51 parts of white oil, 1.5 to 2.6 parts of a cross-linking agent, 0.6 to 1.2parts of zirconium nitrate, 6 to 9 parts of a heat-resisting agent, 5.6 to 8 parts of ammonium persulfate, 0.7to 1.3 parts of sulfur dioxide, 2 to 6 parts of a reinforcing agent, 2.2 to 3.4 parts of disodium ethylene diamine tetraacetate, 52 to 65 parts of distilled water and 8 to 10 parts of acetone. The nano-grade temperature-resisting and salt-resisting cross-linked polymer microspheres provided by the invention have excellent comprehensive performance, temperature resistance and salt resistance and a good blocking effect, and the recovery ratio of crude oil is improved.

The invention discloses a type 1 bovine viral diarrhea virus (BVDV-1) virus-like particle as well as a preparation method and application thereof. A pFBD-BVDV-1 recombinant baculovirus transfer vectoris built by cloning structural protein C, Erns, E1 and E2 coding genes of BVDV-1 to pFastBacDual; a recombinant baculovirus vector Bac-BVDV-1 is obtained through the transposition in colibacillus DH10Bac; insect cells are transfected; recombinant baculovirus Baculo-BVDV-1 is obtained; the structural protein C, Erns, E1 and E2 of the insect cells for expressing BVDV-1 are infected and are automatically assembled into BVDV-1 virus-like particles (VLP) in the cells. The obtained virus-like particle is more similar to the morphostructure of the natural BVDV virus particles; after the inoculationinto animals, the bodies can be stimulated to generate good immune reaction; a better immune effect can be reached. The obtained virus-like particle can be directly purified by using the sucrose density gradient centrifugation. Compared with other expression systems, the virus-like particle has the advantages that the complicated process of extracellular assembly after the respectively purification of the structural protein is avoided; the efficiency is favorably improved; the cost is reduced; in addition, in the production process, the infective BVDV living viruses are not needed; the safetyis improved.

The invention discloses a method for selecting secondary forest intermediate cutting object woods. The method includes the steps of in cooperation with secondary forest characteristics and operation targets, selecting quantitative indexes, such as the freedom degree, the mixture degree, the health indexes, the purpose tree species characteristic indexes, the space density indexes and the open odds, which influence the probability that the woods in a secondary forest are determined as intermediate cutting objects, solving the weights of the six quantitative indexes with an analytic hierarchy process, analyzing correlations between the indexes which serve as independent variables and the intermediate cutting indexes which serve as dependent variables according to biological significances of the indexes for building the ICIi of the woods, and enabling the ICIi of the woods to be sort in a descending mode to determine the prior intermediate cutting object woods. The method is convenient to use, easy to operate and high in efficiency, and the accuracy can meet the requirement.

The invention discloses a Parkinson's hand motion quantitative analysis method and system based on a depth image, and belongs to the field of computer vision and machine learning. The method comprisesthe steps that a detected person makes a hand action according to the requirements of a Parkinson's disease evaluation table, multiple frames of depth images of the detected person are acquired in the period, and 3D coordinates of the hand centroid in each frame of depth image are recognized; according to the 3D coordinates of the hand centroid, hand point cloud and noise point cloud segmentationis carried out on each frame of depth image; predicting 3D coordinates of each hand joint point in each frame of depth image based on the hand point cloud in the single frame of depth image; integrally optimizing the 3D coordinates of all the hand joint points of all the frames according to the time sequence information between the continuous frames and the priori knowledge of the hand postures;according to the optimized articulation point 3D coordinates, hand motion features are extracted; and utilizing the trained XGBoost classifier to classify the extracted hand motion features, and giving a corresponding scoring result.

The invention relates to a biological fermentation preparation method for flavored pigskin. The biological fermentation preparation method comprises the following steps: sterilizing a byproduct, namely pigskin of the pork industry, then performing micro-point roughening treatment of mixed protease on the surface of the pigskin, adding a carbon source and a nitrogen source required by fermentation,inoculating mucor racemosus XH-22, bacillus subtilis and aspergillus oryzae, and performing mixed solid-state fermentation, after surface hyphae are removed, inoculating yeast, the mucor racemosus XH-22 and the aspergillus oryzae, carrying out compensation fermentation on the pigskin, and subjecting a fermentation product to flavoring, drying and dehydration so as to obtain a product, namely fermented flavored pigskin. The flavored fermented pigskin produced by using the method provided by the invention has the following advantages: the production process is environmentally-friendly, simple,convenient, economical and practical; the difficulties of a conventional method in industrial production is overcome; meanwhile, the deficiencies of a conventional product in the aspects of nutritionand flavor can be made up; excellent flavor is guaranteed; and high-quality collagen is taken as a source of healthy energy at the same time.

The invention discloses a heat conduction interface material and a preparation method thereof. The preparation method comprises the following steps: (1) dispersion and vacuumizing: adding liquid silica gel, a coupling agent, heat conduction powder, a flame retardant, an inhibitor and a platinum catalyst into dispersion equipment, carrying out dispersion and vacuumizing, and carrying out uniform dispersion, so as to obtain a heat conduction mixture; (2) calendering solidification: respectively extruding the heat conduction mixture to two surfaces of glass fiber cloth by virtue of calendering equipment so as to form a heat conduction layer, dragging the heat conduction layer into a drying oven through a release film, and carrying out solidification; and (3) gum film lamination: uniformly coating the surface of the solidified heat conduction layer with heat conduction glue, so as to form an adhesive layer, and laminating the adhesive layer with the release film, so as to obtain the heat conduction interface material. The heat conduction interface material provided by the invention has high viscosity and strength and an excellent heat conduction effect.

The invention discloses a fast combination locking-type scaffold system. The fast combination locking-type scaffold system is mainly composed of structural parts and partial accessories such as vertical rods, horizontal rods and inclined rods. The vertical rods are provided with a multi-hole connecting disk and a connecting locking and docking system so as to be assembled with the matching horizontal rods, the inclined rods, and the like into a construction structure which is stable in structure and can meet various load requirements; and the existence structures of the basic elements are interrelated and interdependent, all the structural parts adopt standard parts series, scale production can be achieved, and safety, reliability, efficiency and practicality are achieved really.