Abstract: A composite transparent film, a preparation method thereof and a method for continuous digital light processing ceramic 3D printing based on the same are provided. The method selects a mixture of silica microspheres and PDMS to form a composite film on which silica is used to form a hydrophobic layer. Combined with specific optimized parameters, the film is more suitable for continuous digital light processing ceramic 3D printing, which can realize the continuous printing of ceramic slurries, solve the problem of delamination of printed pieces obtained by the existing 3D printing method of ceramics, improve the printing accuracy, and decrease the printing costs.

Abstract: A traditional Chinese medicine composition for treating dermatophytosis and bromhidrosis, which is prepared from radix sophorae flavescentis and peristrophe japonica, has synergistic interaction and anti-fungal effects, and is not easy to produce drug tolerance. After performing compatibility of extracts of matrine and peristrophe japonica, dermatophytosis and bromhidrosis can be treated, and multiple external preparations can be prepared.

Abstract: The invention relates to an emergency support robot for polar UAVs, belonging to the technical field of emergency support robots for polar UAVs. The technical problem to be solved is to improve the structure of the existing emergency support robots for polar UAVs. The technical scheme adopted is as follows: the robot is of a car body structure; a support table is arranged on the upper side of the chassis of the car body; a traveling mechanism is arranged on both sides of the chassis of the car body; the two sides of the support table are hinged with a pair of casings through hinged buckles and push rods; the casings are also provided with a wind power plant; the support table is provided with a launching guide rail.

Abstract: Embodiments relate to prosthetic limbs and liners. An embodiment of the prosthetic liner is housed in a prosthetic limb and includes a liner body. The liner body includes a first end for receiving a body part of a user. The first end includes a liquid-retentive portion. The liner body includes an inner surface. The inner surface contacts with the body part. The inner surface includes a plurality of microchannels. The microchannels are formed along the inner surface. The microchannels are connected at one end to the liquid-retentive portion. At least one of the plurality of microchannels is configured to receive liquid droplets and direct the received liquid droplets to the liquid-retentive portion. The liner body also includes an outer surface opposite to the inner surface. The outer surface faces an interior surface of the prosthetic limb and is provided in an interior cavity of the prosthetic limb.

Abstract: The present disclosure provides use of a graphene oxide/butyl acrylate/silane composite emulsion as an anti-shrinkage agent of a cement-based material. In the present disclosure, active groups on an isobutyltriethoxysilane molecule reacts with hydroxyl groups on a surface of a mortar to form a layered hydrophobic structure, thereby slowing a water loss in the mortar of the cement-based material and avoiding cracking caused by drying shrinkage. Butyl acrylate can be dehydrated to form polymer fibers with a spatial network to fill pores of a cement paste, thereby limiting the shrinkage of the mortar. Graphene oxide has a relatively large specific surface area and oxygen-containing functional groups on a surface, which can provide growth sites for hydration products, and promote the hydration products to form a regular and dense structure in the form of a template, thus ensuring a strength of the cement-based material.

Abstract: The present disclosure relates to an optimization method of outlier data identification in a traffic emission quota allocation process. This method includes: constructing a traffic emission quota allocation model; calculating a unit output-input value for each input of each vehicle in a reference set D; identifying outlier vehicles by using a combination of isolation forest model-generalized super efficiency model; and removing final outlier vehicles from the reference set D to obtain a reference set D? with the final outlier vehicles being removed.

Abstract: Disclosed is a method for remining a residual coal pillar in a residual mining area by collaboration of pillar-side backfilling and in-situ gasification. The method includes the following steps of: ascertaining geological and hydrological conditions, a geometric shape and a reserve of a residual coal pillar; determining the feasibility of underground gasification mining for the residual coal pillar; carrying out side supporting on the residual coal pillar in a goaf by using a pillar-side backfilling method; and carrying out the underground gasification mining on the residual coal pillar by means of an underground coal gasification process.

Abstract: A finite time speed control method for a permanent magnet synchronous motor (PMSM) based on a fast integral terminal sliding mode and disturbance estimation comprises: firstly, determining a mathematical model of a speed loop of the PMSM under the influence of system parameters uncertainty and unknown load torque; secondly, designing an improved fast integral terminal sliding surface on the basis of the idea of terminal sliding mode control; then, proposing a disturbance estimation method based on an adaptive fuzzy system with respect to the disturbance in a PMSM system; designing a PMSM speed controller on this basis; and finally, completing the concrete implementation of the whole technical solution. The present invention designs the fast integral terminal sliding surface and a sliding mode control law to ensure that a motor speed tracking error converges to zero within finite time and enhances the rapidity of a PMSM speed regulating system.

Abstract: A 3D printing device and method for integrated manufacturing of functionally gradient materials and three-dimensional structures. The device includes an active and passive mixing and printing module and a constraining and sacrificial layer printing module. An input end of the active mixing module connects to multiple anti-settling feeding modules, and an output end of the active mixing module connects to the passive mixing and printing module. The passive mixing and printing module and the constraining and sacrificial layer printing module are mounted on one side of an XYZ three-axis module. The constraining and sacrificial layer printing module connects to a constraining and sacrificial layer feeding module and prints and forms a functionally gradient three-dimensional structure.

Abstract: The preparation method of a starch-based double-loaded functional nanoparticle includes: performing restrictive hydrolysis treatment on egg high-density lipoprotein using proteases to obtain the polypeptide; performing self-assembling on a mixed system containing the polypeptide and quercetin under the alkaline condition to form a micelle nanoparticle; performing covalent grafting reaction on a mixed system containing the micelle nanoparticle and anthocyanin under the alkaline condition to form a graft; and electrostatically compounding carboxymethyl dextrin with the graft to obtain the starch-based double-loaded functional nanoparticle. In the preparation method, raw materials derived from natural sources are used, and the self-assembled colloid nanoparticle with good properties can be obtained by adjusting the pH without any organic reagents.

Abstract: A magnetic field-assisted vibratory finishing device for a minute structure and a finishing method is provided. The device includes a rotating shaft, a workpiece clamping device, a magnetic field generating device, a vibration assisting device, a three-axis precision displacement platform and a base. The magnetic field generating device includes a baffle plate, magnetic bars and a magnetic-pole groove. The vibration assisting device includes a housing, guide fixing rods, a vibration motor, a vibration connecting plate, and compression springs. The workpiece clamping device clamps parts with a variety of structural shapes, and a frequency controller can control the motion mode of the magnetic field generating device during the finishing processing, thereby controlling the motion track of grinding material.

Abstract: Disclosed are a 4D printing method and application of titanium-nickel shape memory alloy. The 4D printing method comprises the following steps: mixing and smelting pure titanium and pure nickel to obtain titanium-nickel alloy bars, then preparing alloy powder by a rotating electrode atomization method, and sieving the powder to obtain titanium-nickel alloy powder with a particle size of 15-53 ?m; placing the obtained titanium-nickel alloy powder in a discharge plasma assisted ball mill for discharge treatment to perform surface modification of the powder; and subjecting the titanium-nickel alloy powder to SLM forming to obtain the titanium-nickel shape memory alloy.

Abstract: The disclosure relates to a staggered electrode bio-electro-Fenton groundwater circulation well system, including a groundwater circulation well, a water pumping and injecting assembly and an in-well bio-electro-Fenton assembly. The water pumping and injecting assembly is configured to realize water pumping and injection between different screening sections of the groundwater circulation well. The bio-electro-Fenton assembly arranged in a first screening section of the groundwater circulation well includes at least one electrode device. A cathode and an anode of the electrode device form a spatially staggered arrangement according to different distribution areas.

Abstract: The present invention belongs to the technical field of ocean energy utilization, and provides a test system for turbine comprehensive performance of a pneumatic wave energy converter. The test system for turbine comprehensive performance of the pneumatic wave energy converter comprises a wave surface simulation system, an airflow rectifier system, a turbine device, a tabletop support structure, an instrument support frame and a sensor analysis system. A programmable linear motor is used to drive a bellows to simulate the complex oscillating airflow of the pneumatic wave energy converter; a complete sensor and measurement system is configured for various performance indexes of a turbine system; and finally, an effective technical evaluation means for the power generation efficiency and comprehensive performance evaluation of the pneumatic wave energy converter is provided. The present invention has simple assembly and disassembly technologies and high flexibility.

Abstract: Provided are a synchronous fluorescence detector for observing the interface concentration of fluorescent pollutants and application method. The detector comprises a first electric displacement platform, a quartz cuvette, an excitation light path, a collection light path and a second electric displacement platform. The application method comprises the following steps: first exciting fluorescent pollutants by utilizing UV light with specific wavelengths to emit fluorescent light; then collecting fluorescence signals emitted by the excited fluorescent pollutants to the greatest extent by utilizing an UV anti-reflection convex lens combination; and finally, processing the fluorescent signals acquired by a photomultiplier by utilizing a difference method to determine a precise light intensity of a thin layer which is moved at a specific spacing by utilizing the electric displacement platforms so as to determine fugacity distribution of the fluorescent pollutants in the microlayer near an interface.

Abstract: An injection molding apparatus and method are provided, comprising: a core plate having a male protrusion; a cavity plate having a female cavity configured to be mated with the male protrusion; a first insert plate; a second insert plate connected to the first insert plate by a rotating arm; a motor; connected to the rotating arm, operable to rotate the first insert plate and the second insert plate in and out of the female cavity of the cavity plate; and an induction heating device, positioned outside of the cavity plate, operable to cause an induction current on a surface of either the first insert plate or the second insert plate when either are rotated outside of the female cavity.

Abstract: Disclosed is a magnetorheological-elastomer (MRE) polishing pad suitable for chemical mechanical polishing (CMP) of a semiconductor wafer, which simultaneously realizes high-efficiency magnetic control polishing and high-efficiency Fenton reaction, forms an organosilicon-polyurethane matrix through an organosilicon-modified polyurethane prepolymer, and combines the characteristics of high flexibility and excellent comprehensive mechanical properties of organosilicon. CIP@Fe3O4 composite magnetic particles in the polishing pad can make the MRE polishing pad exhibit a high magnetorheological effect, and the produced ·OH can oxidize a surface of the semiconductor wafer to generate an oxide layer, reducing the material removal difficulty of abrasive materials and the polishing pad under the mechanical action.

Abstract: A gravity compensation assembly including a main frame having one side connected to a weight body to be supported, and the other side where an inner rotation portion and an outer rotation portion spaced apart from each other and having rotation axis in an x-axis direction are coupled, an auxiliary frame having one side rotatably connected to the inner rotation portion of the main frame, and the other side where an auxiliary rotation portion having a rotation axis in the x-axis direction is coupled, and an elastic force providing having one side rotatably connected to the outer rotation portion of the main frame, and the other side coupled to the auxiliary rotation portion of the auxiliary frame, and configured to perform load compensation by an elastic force when a center of gravity changes as a relative angle of the main frame and the auxiliary frame changes may be provided.

Abstract: A differential chaos shift keying (DCSK) communication method based on three-dimensional constellation is provided. Target information bit is mapped to a three-dimensional constellation symbol. An initial chaotic signal generated by a chaotic generator is processed by cyclic shift to generate a chaotic signal group including the initial chaotic signal, a first shifted chaotic signal and a second shifted chaotic signal. Information modulation is performed based on the three-dimensional constellation symbol and the chaotic signal group to obtain an information-bearing signal. A transmission signal is generated based on the information-bearing signal and the initial chaotic signal, and sent to a receiver to generate a received signal, which is subjected to information recovery analysis in the receiver to obtain an estimated information bit. A DCSK communication device based on three-dimensional constellation is also provided.

Abstract: A device and process for electrochemical treatment of wastewater with a screening current collector-based flow anode are provided. The device includes: a shell, where an interior of the shell is a cavity structure, and the shell is provided with a water inlet and a water outlet; a screening current collector structure, where the screening current collector structure includes a screening anode current collector and a cathode current collector, a cathode/anode separator is provided between the screening anode current collector and the cathode current collector, and the screening anode current collector and the cathode current collector each are connected to an external circuit; an anode cell and a cathode cell, where the anode cell and the cathode cell are formed through division of the cavity structure, and an electrolyte is provided in each of the anode cell and the cathode cell; and a flow anode suspended in the anode cell.