164results about How to "Unchanged structure" patented technology

The invention provides a silicon graphene core-shell material with gaps. The silicon graphene core-shell material is a material with a core-shell structure; an inner core is made of silicon particles; a housing is made of graphene; and gaps with the distances of 0.1nm to 10 microns are formed between the inner core and the housing. The invention further provides a preparation method of the silicon graphene core-shell material and an application of the material as a lithium-ion battery anode material. The first lithium deintercalation capacity of the lithium-ion battery employing the silicon material provided by the invention as a negative active material can be up to 3015mA.h/g; the lithium-ion battery prepared from the silicon material as the negative active material has a high rate capability; and the lithium deintercalation capacity at the rate of 5C can be up to 2440mA.h/g. According to the core-shell gap structure of the silicon material provided by the invention, volume expansion and contraction and mechanical stress caused by the volume expansion and contraction in charging and discharging process of the lithium-ion battery can be effectively accommodated and alleviated; the volume effect is removed; and the prepared lithium-ion battery has excellent cycling stability.

A process for preparing the superfine powder of sea cucumber includes washing fresh sea cucumber, removing impurities, cutting, freeze vacuum drying, breaking, and superfine pulverizing by fluidized-bed airflow. Its advantages are no pollution and easy absorption.

The invention relates to a method for preparing rose superfine powder, which comprises: taking medicinal and edible fresh rose as a raw material, and performing impurity removal, cleaning and vacuum freeze-drying; and coarsely crushing the dried rose raw material, applying fluidized bed pneumatic milling technology for superfine processing, and preparing superfine powder products with water content between 6 and 8 and granularity between 1,000 and 3,000 meshes. The products produced by the method have the characteristics of uniform granularity, good dispersity, no processing pollution, capability of reserving bioactive compositions and thermosensitive compositions to the maximum degree, and not only can be quick to take health care effect and complete to absorb and digest but also can reduce the dosage and greatly improve the utilization rate of nutritive compositions of the rose.

The invention discloses a method and a system for quickly drawing a complex scene based on a process factory parameter model and relates to the technical field of quickly drawing the complex scene. The method comprises the following steps: analyzing the process factory parameter model, thereby acquiring an object contained in the model and an volume element contained in the object as well as parameter information of the volume element; establishing a scene tree based on an eight-fork tree structure, by using the object as a tissue unit; on the basis of a fractional number of the volume element, forming layering detail models with different resolution ratios; rejecting a vision field based on the layering of an encircled box of the scene tree; judging which object and which volume element of the object are located in the vision field; based on a view point, dynamically choosing the detail model used by the volume element; achieving the purpose of changing the resolution ratio of the volume element by changing the index arrays of the volume element; and performing backward rejection on the basis of parameter analysis expression of the volume element. By using the method provided by the invention, the real-time roam problem of the large-scale process factory model is solved, the real-time roam of the large-scale process factory model can be performed on a common PC (personal computer), the preprocessing time is short, and the occupancy rate of disk space is small.

The invention discloses a tube fin brazing process and an in-tube heating brazing machine and is characterized in that a finned tubular pipe welding element well filled with solders is placed on a bracket and the surfaces of welding elements to be brazed are chemically cleaned; a rod type electric heating tube extends into the pipe to perform in-tube radiation heating to firstly moisten and apply the solders at the external wall of the pipe to fill the brazing gaps and then transfer the temperature to a finned folding edge by liquid solders; the metallurgical bonding is formed between the solders and the pipe as well as the folding edge by the atomic diffusion and solution. By adopting the in-tube heating brazing machine which consists of a machine stand, the bracket which is arranged at the front end of the machine stand and a heating tube holder arranged at the bracket, the tube fin brazing process and the in-tube heating brazing machine have the advantages of simple and convenient operation, minimal investment, no limitation to the geometric shapes of the brazed elements, no damage to the surfaces of the brazed elements and no change of the crystal structures in metals and solve the problems that the fins reach the brazing temperature before the pipes and the temperature is not easily controlled, and the brazing can not completely penetrate and fill the connection gaps and the brazing effect is bad, and the problems are caused by the traditional brazing heating ways.

The invention requests to protect a wireless network deployment method for a 5G NSA networking mode. The method comprises the following steps: marking all n LTE base stations in a to-be-deployed areaof a 5G wireless network, and dividing a 5G coverage area into n grids according to the radius of a 5G cell; the method comprises the following steps: counting network flow hot spot areas such as superhigh flow, superhigh people flow density, economic development and the like in a planning area, such as large shopping centers, universities, regional symbolic scenic spots and the like, and selecting p (p (n) LTE base stations as 5G to-be-deployed base stations according to base station information in the area; selecting q (q (n) LTE base stations as 5G stock stations in combination with economic development and business demand growth trends in a planning area; performing statistics on a 5G grid deployment suggestion value, and performing priority classification on the to-be-deployed grids;and finally, deploying 5G in stages according to the priority level of the to-be-deployed grid, and continuously adjusting and optimizing p and q geographic positions and numerical values in the deployment process, so that 5G network planning resources are more reasonable.

The invention relates to a vehicle transmission shaft straightening device, which comprises a base, guide rails, a sliding support mechanism, a measurement mechanism, a stand column mechanism and a straightening mechanism, wherein the guide rails are arranged on the base, the sliding support mechanism is connected with the guide rails in a sliding mode, the measurement mechanism is arranged on the sliding support mechanism, the stand column mechanism is arranged on the base, and is arranged on one side of the guide rails, the straightening mechanism is arranged on the stand column mechanism, a transmission shaft is arranged on the sliding support mechanism, the straightening mechanism downwardly moves to a position where is be about to contact with the upper surface of the transmission shaft, the measurement mechanism is contacted with the lower surface of the transmission shaft, and rotates the transmission shaft and pushes the sliding support mechanism, and the straightening mechanism straightens pressure of the transmission shaft through reading of the measurement mechanism. Compared with the prior art, the vehicle transmission shaft straightening device has the advantages that the vehicle transmission shaft straightening device improves straightening precision, and is simple in structure and convenient to operate and the like.

The invention relates to a Pd/C catalyst for producing 2,3,5-trimethylhydroquinone (TMHQ) by virtue of hydrogenation of 2,3,5-trimethylbenzoquinone (TMBQ) and a preparation method thereof. In the Pd/C catalyst provided by the invention, a noble metal Pd supported on a carrier activated carbon exists in a nano particle form, the dispersion degree of Pd is not less than 30%, and the carrier activated carbon has micropores and mesopores. The preparation method comprises the following steps: (1) carrying out acid treatment on the carrier activated carbon, and adding an acid solution in activated carbon for carrying out water bath reflux treatment; (2) washing activated carbon treated by the acid with deionized water to be neutral, and drying so as to obtain the activated carbon carrier; (3) infiltrating the activated carbon carrier with an infiltration liquid in advance; (4) slowly dropwise adding a 0.01-0.3mol/L Pd source solution in the activated carbon carrier which is infiltrated in advance, so that Pd is supported on the activated carbon, thus a catalyst precursor is obtained; and (5) drying the catalyst precursor and then treating the dried catalyst precursor by a reduction method so as to obtain the Pd/C catalyst for producing TMHQ by virtue of hydrogenation of TMBQ. The Pd/C catalyst provided by the invention has the characteristics of being simple and efficient, and having high catalysis property in BTOP (benzene to phenol) reaction.

The invention discloses a multi-working-condition auxiliary boom structure which comprises a boom rest, a first jib luffing mechanism (1) used for converting a working angle of an auxiliary boom, and an lengthened section (2) used for increasing the length of the boom rack, wherein the lengthened section is mounted at the front end of the first jib luffing mechanism, and a second jib luffing mechanism (3) is arranged on the boom rest at the front end of the first jib luffing mechanism. The invention further provides a crane with the multi-working condition auxiliary boom structure. The auxiliary boom mechanism is detachably connected to a hoisting boom of the crane. According to the multi-working-condition auxiliary boom structure, on the basis of an original boom rest structure, the second jib luffing mechanism is additionally provided, so that a rotary point is additionally arranged at the front section of an original boom rest system, so that the flexibility of converting the boom rest angle and selecting a working condition is increased; the original boom rack structure is not changed, a newly-designed rotary device is used as an option configuration, without influencing the constitution of the original boom rest structure; the rotary device can be assembled on multiple positions of the boom rest system, so that the flexibility of converting the boom rest angle and selecting the working condition is increased, and the product applicability is relatively wide.

The invention discloses a negative electrode material for a potassium-ion battery, a preparation method thereof and a negative electrode sheet. The negative electrode material is a hierarchical porouscarbon microsphere material and has a hierarchical porous structure. The hierarchical porous carbon microsphere material is constituted by winding nitrogen-doped porous carbon nanofibers. The preparation method of the negative electrode material for the potassium-ion battery is friendly to environment, simple in process, safe, low in cost and capable of achieving mass preparation. The negative electrode sheet comprises a negative electrode material for a potassium-ion battery. The negative electrode material of the invention has high level of nitrogen doping and hierarchical porous structureat the same time, which not only ensures rapid electron and ion transport, but also provides a large number of interface potassium storage active sites. In addition, the negative electrode material enhances the adsorption capacity of potassium-ion, and greatly improves the specific capacity and rate capacity of potassium storage, thus providing the negative electrode material for the potassium-ionbattery and the negative electrode sheet with high energy density and high power density.

A detachable mechanism used for installing a low-temperature superconducting magnet refrigerator comprises a connection flange connected with the refrigerator. The connection flange is connected with a supporting flange through a corrugated pipe, a primary cooling pipe is connected with the supporting flange and a cold shield flange respectively, the upper end of a secondary cooling pipe is connected with the lower portion of the cold shield flange, and the lower end of the secondary cooling pipe is communicated with the inside of a helium tank. The refrigerator and components of the refrigerator can be conveniently mounted and dismounted through commonly-used sealing rings and bolts, and meanwhile a sealed space environment of the components can not be damaged. The refrigerator still can effectively play a refrigeration role through the corrugated pipe, the cold shield flange, the cooling pipes and other parts. The detachable mechanism is simple and compact in structure, simple in manufacturing technology, low in cost, good in interchangeability, low in maintenance cost, long in service life, good in universality, and capable of being modularized.

The invention discloses an iron-based double-ligand metal organic framework material capable of preferentially adsorbing ethane as well as a preparation method and application of the iron-based double-ligand metal organic framework material. The method comprises the following steps: (1) dropping a sodium acetate solution into an iron nitrate solution, and carrying out stirring to obtain an iron cluster; and (2) dissolving terephthalic acid and triethylene diamine into N,N-dimethylformamide, then, dropping a DMF solution of the iron cluster, then, dropwise adding glacial acetic acid, and carrying out uniform stirring; and placing a mixed solution into a glass bottle to be sealed, then, carrying out a programmed temperature controlled solvothermal synthesis reaction to obtain the iron-baseddouble-ligand metal organic framework material. The material has the property of preferentially adsorbing ethane, both the ethane adsorption capacity and ethane/ethylene adsorption selectivity are onthe international advanced level, the ethane adsorption capacity of the material is more than 2.5 times as high as that of activated carbon under the same condition, the ethane/ethylene adsorption selectivity is more than 2 times as high as that of activated carbon, and the water vapor stability is good. The material has a good application prospect for industrial ethylene and ethane separation.

Liquid-phase antichlor is formed by a composite crystal structure comprising an active component and an auxiliary component.The active component is at least one of magnesium oxide, calcium oxide, magnesium carbonate and calcium carbonate.The auxiliary component is alumina or iron oxide.A preparation method of the liquid-phase antichlor includes the steps of a, preparing active component precursor, auxiliary component precursor and precipitator into reaction mixture; b, placing the mixture obtained in the step a into a high-pressure kettle, and stirring for crystallization for 3-8 hours under 130-190 DEG C in a sealed manner; c, filtering, washing, drying and forming the reaction products obtained in the step b; d, calcining the formed material obtained in the step c to obtain the finished antichlor.

The invention discloses a preparation method of chili oil, and relates to the field of seasonings. The method comprises the following steps: frying seasoning chili for 3-10 minutes at the temperature of 80-100 DEG C, and baking for 5-15 minutes, thereby obtaining seasoning chili powder; frying flavor blending chili for 3-10 minutes at the temperature of 90-110 DEG C, baking for 5-15 minutes at the temperature of 85-95 DEG C, heating to the temperature of 90-110 DEG C, frying for 3-10 minutes, and baking at the temperature of 85-95 DEG C for 5-15 minutes, thereby obtaining the flavor blending chili powder; preparing color blending pepper powder by adopting the method for preparing the flavor blending chili powder; and heating 55-60 parts of edible oil to 110-130 DEG C, adding 2-5 parts of the seasoning chili powder, 30-35 parts of the flavor blending chili powder and 8-10 parts of the color blending chili powder, and sealing and storing so as to obtain the chili oil. The chili oil which is good in pungency degree, flavor degree and color can be obtained, and is relatively healthy, and relatively rich in flavor.

The vane for a wind energy installation is equipped with collecting devices and comprises at least two parts so that a hollow space is formed, in which devices are placed for collection of dust, particles or loose objects. The collecting dvices consist of a container with a funnel-shaped opening, with a valve or adhesive surfaces on the inside. The devices may also be a kind of filter positioned between chambers inside the vane.

The invention relates to a stereo image color correction method and system based on matching and fusion. The method comprises the following steps: S1, establishing a training set comprising undistorted stereo images and distorted stereo images; S2, constructing a color correction initial model based on parallax attention and a loss function thereof, training to obtain a trained color correction initial model, and performing initial color correction on the target image by using the trained color correction initial model to obtain an initial correction image; S3, calculating an optical flow from the initial correction image to the reference image by using an optical flow network, and performing image deformation and hole filling on the reference image to obtain a matched target image; S4, constructing an image fusion network model based on a U-net model architecture and a loss function of the image fusion network model, and training to obtain a trained image fusion network model; and S5, performing color correction on the distorted stereo image to be corrected by using the models trained in the steps S2 to S4. The method and the system are beneficial to quickly and efficiently correcting the color difference between the left view and the right view of the stereo image.

The invention discloses a method for preparing a hydrophilic surface-crosslinked ultra high molecular weight polyethylene moulding material. The method comprises the following steps: (1) preparing the ultra high molecular weight polyethylene moulding material; (2) preparing an ultraviolet light initiator solution and a vinylsilane solution; (3) putting the ultra high molecular weight polyethylene moulding material in the ultraviolet light initiator solution, completely immersing, and radiating by an ultraviolet light with the energy density of at least 400 mJ/cm2 for 10-60 minutes, putting into the vinylsilane solution and completely immersing, radiating by an ultraviolet light with the energy density of at least 400 mJ/cm2 for 10-60 minutes, and cleaning the unreacted silane or auto-polymerized silane on the surface of the ultra high molecular weight polyethylene moulding material by absolute ethyl alcohol after finishing radiating; and (4) performing hydrolytic condensation. The moulding material obtained from the invention is high in abrasive resistance, durable in surface hydrophily and is safe in medical material application and can keep the impact-resistance strength and anti-fatigue performance.

The invention provides a filtering device, a sewage filtering system, and a sewage filtering technology, and belongs to the technical field of sewage treatment. The filtering device comprises filter tubes, magnetic rings and a water collecting tube, every filter tube comprises an outer screen tube, an inner screen tube and magnetic particles, and the magnetic rings can move along the length direction of the outer screen tubes in order to drive the magnetic particles to wriggle; and the water collecting tube communicates with the bottoms of the inner screen tubes to discharge filtered water. The filtering device can achieve rapid sludge formation, reduce the compactness of a sludge cake layer, increase the water permeability of the sludge layer, prolong the filtration cycle of a micro-screen dynamic membrane and improve the outlet water quality of the dynamic membrane. The sewage filtering system comprises a membrane tank, a gas supply device, a lifting device and the filtering device. The system has the advantages of the filtering device, the sewage filtering technology adopts the filtering system, and can effectively improve the sewage treatment effect through a membrane forming process, a filtering process and an aeration desliming process.

The invention relates to the technical field of preparation of compounds for promoting bone health, and provides a preparation method of a sea cucumber oyster glycopeptide calcium complex. The methodcomprises the following steps: subjecting sea cucumbers and oyster meat to enzymolysis so as to obtain a sea cucumber oyster glycopeptide solution, subjecting the sea cucumber oyster glycopeptide solution to enzymolysis, then preparing calcium acetate by using the oyster shells, and chelating the calcium acetate with sea cucumber oyster glycopeptides so as to obtain the sea cucumber oyster glycopeptide calcium complex. The invention also provides a preparation method of a sea cucumber oyster glycopeptide calcium complex compound, and the method compounds the sea cucumber oyster glycopeptide calcium complex with glucosamine, medicinal and edible extract and a calcium absorption enhancer so as to obtain the sea cucumber oyster glycopeptide calcium complex compound. Thereby, the sea cucumberoyster glycopeptide calcium complex compound provided by the invention can be used as a natural health product for promoting bone health, and can improve the symptoms of osteoporosis and osteoarthritis which are prevalent among middle-aged or postmenopausal women.

A combined pressurized circulating hydroelectric unit comprises a circulating water tank, one or more impellers, generators and a water pump, wherein the one or more impellers are mounted on at least one tank wall edge of one side of the circulating water tank and can be mounted on the single edge as well as be mounted oppositely on two edges; each impeller mounting position of the circulating water tank adopts an outward bulging half-round structure; one or more impellers can be mounted, one generator is connected with one or two ends of each impeller; the water pump is mounted on the other side of the circulating water tank; after the circulating water tank is filled with water, a water tank cover comprising an air hole covers the circulating water tank, the water pump is started up through external electricity to drive the water in the water tank to flow continuously and circularly, the sufficient flow pressure is provided to drive the multiple impellers to rotate continuously, rotation of each impeller drives each connected generator to start continuous generation, at the moment, the external electricity for starting up the water pump is disconnected, part of the electricity generated by the device is supplied for long-term operation of the water pump instead, and the majority of the electricity generated by the device is output, so that the continuous, sable and efficient electricity generation and supply effects can be realized. Descriptions of appended drawing marks are as follows: 1-the circulating water tank, 2-the water tank cover comprising the air hole, 3-the half-round bulging structure of the circulating water tank wall edge, 4- the impeller, 5-the generator, and 6-the water pump.

The invention discloses a southern sloping field turf water channel space ecological niche optimal configuration method. The method comprises the following steps: (S1) a water channel area is set; (S2) the gradient, the size and the shape of an earth surface built with a water channel are adjusted; (S3) grass varieties suitable for local weathers are selected to form a grass band; the planting density is increased; and organic fertilizers are applied as bottom fertilizers; (S4) determination of a biocoenosis construction plan: herbaceous plant varieties are selected and population distribution areas are adjusted according to optimal configuration plans; and the grass band is uniformly and continuously planted in the same one trench; (S5) straw bags or non-woven cloth are covered after sowing for manual management to prevent invasion of other plant varieties and manual artificial destruction and to control the pest and disease damage so as to guarantee stability of an ecological buffer zone of the trench; and (S6) the grass band is cut.

The invention relates to a preparation method of an Mx' phase VO2 nanometer material with metallic characters under normal pressure, and belongs to the technical field of preparation of nanometer materials. The preparation method comprises the following steps: preparing tungsten doped vanadium dioxide nanoparticles by taking vanadium pentoxide, oxalic acid and sodium tungstate as starting materials through hydrothermal treatment and calcination; and performing treatment under pressure up to 64 GPa and relieving pressure to obtain the Mx' phase VO2 nanometer material capable of existing stably under the conditions of normal temperature and normal pressure and with metallic characters. The preparation method provided by the invention is simple and easy to operate; the prepared samples are uniformly in shape and high in crystallinity; and compared with VO2 with other structures, the tungsten doped VO2 (Mx') phase can maintain the structure of the sample to be unchanged after being converted into metal, so high stability is achieved in the insulator-metal transformation process, and a certain application prospect is achieved.

The invention provides a design method for a warp and weft interwoven jacquard fabric structure. A non-covered structure is formed by combining three sets of complete structures, and has the warp and weft full-color-development jacquard weaving effect. According to the main technical scheme, the method includes the first step of design of three sets of basic structures, the second step of positioning structure point design, the third step of shadow structure bank design, the fourth step of application of the non-covered structure formed by combining the three sets of complete structures, and the fifth step of the verification method. The method has the technical advantages that three sets of weft yarn are completely unfolded for color development, covering and overlapping of weft yarn are avoided, and the complete structure cycle number of the basic structure is not restrained by the weft set number. The method can meet the requirements of full-color-development structure design formed by combining complete structure sets of an odd number large than three.