Abstract: The present invention provides a multi-load wireless power transfer system based on high-order Anti-PT symmetry. By introducing a “W-shaped” anti-resonance mode into a basic WPT platform, an effective Anti-PT non-Hermitian system is conveniently constructed. The “level attraction” of the anti-resonance mode is combined with the “level splitting” of the anti-resonance mode and the resonance mode, to study the “level pinning” effect of high-order Anti-PT symmetry. Compared with the traditional resonant WPT, the anti-resonant WPT has higher security, stability, transfer efficiency, and flexibility. Considering the miniaturization and integration of devices, a “meta coil” is designed by using a “synthetic dimension”, and used to construct a high-order Anti-PT symmetric system, thereby achieving multi-load efficient WPT. The new WPT technology based on the “level pinning” effect of high-order Anti-PT symmetry provides a good application research platform for enriching non-Hermitian physics.

Abstract: The present invention provides a real-time path planning method taking into account dynamic properties of vehicles; the method includes a calculation without connecting to internet of a reachable set and an online path planning; in the calculation without connecting to internet of the reachable set, all vehicle safety states are traversed by means of the vehicle model and the wheel model, thereby predicting the position set capable of being reached by the vehicle at a next moment; in the online path planning, by means of calculating the position set capable of being reached by the vehicle at the next moment with connecting to internet, non-linear dynamic constraints are provided for the exploration of the artificial potential field method, achieving the purpose of real-time planning while taking into account dynamic properties of the vehicles.

Abstract: A method and device for dynamically adjusting train interval based on wide-area interlocking control, and a computer-readable storage medium.

Abstract: Method and device for treating coking wastewater through denitrification and anammox are provided. The device includes an anaerobic reactor, an anoxic reactor, a sedimentation tank, and an aerobic reactor sequentially communicated, and a coking wastewater tank communicated with the anaerobic reactor through an influent pump. The present disclosure promotes the formation of microgranular sludge in the device through a composite powder carrier, and promotes sulfur-based autotrophic denitrification in anaerobic and anoxic zones through pyrite in the composite powder carrier and an additional sulfur source, and promotes anammox in the anaerobic zone through NO2?—N produced by sulfur-based autotrophic denitrification in the anoxic zone.

Abstract: The present invention relates to the technical field of construction engineering, and specifically to configurations and close-fitting joints for a second-order scissor damper and an assembly method for the same. There six parts in total, including first hinge joints, a first-order shuttle-shaped linkage mechanical component, second hinge joints, a second-order shuttle-shaped linkage mechanical component, third hinge joints, and a viscous damper; the second-order shuttle-shaped linkage mechanical component includes four small connecting rods of equal length and it is formed by hinging them together. The device of the present invention can constrain the joints, release the bending constraints on the ends of the rods, and enable a significant increase in the stroke amplification of the conventional scissor damper.

Abstract: A test system for measuring the gas permeation parameters of an ultra-low permeability medium in multi-field and multi-phase coupling conditions, comprising a triaxial permeation chamber, a deformation monitoring apparatus, a temperature sensing control apparatus, a volume/pressure controller, a bias stress loading apparatus, a gas injection apparatus, an outlet buffer container, and an ultra-low permeation flow monitoring apparatus. During the test, first applying temperature and triaxial stress control to a rock-soil mass sample; using the gas injection apparatus to inject high-pressure gas into the rock-soil mass sample; after permeation, the high-pressure gas enters the outlet buffer container and the ultra-low permeation flow monitoring apparatus to acquire the gas permeation flow; and, in the test process, the deformation monitoring apparatus can measure the local absolute deformation of the rock-soil mass sample.

Abstract: The present invention provides a geotechnical centrifuge platform-based earthquake fault simulation system, involving the field of earthquake disaster simulation technology. A bottom support system of the geotechnical centrifuge platform-based earthquake fault simulation system is used to support a horizontal actuation system and simulate earthquake faults and site covering layers. The horizontal actuation system is used to apply horizontal thrusts to simulated earthquake faults and site covering layers. The simulated earthquake faults are used to fill fault test blocks to simulate bedrock layers of earthquake faults and the site covering layers are used to fill sand layer materials onto surfaces of the simulated earthquake faults to simulate soil layers of the earthquake faults.

Abstract: The present invention provides a method of reducing and controlling a hazardous substance in a process of high-value biological conversion of an urban organic waste. The method includes: 1) mixing a sludge, a first urban organic waste and an organic acid with water for acclimation to obtain an acclimatized sludge; 2) stage 1 of biological conversion: mixing the acclimatized sludge with a second urban organic waste to perform anaerobic culture; 3) stage 2 of biological conversion: adding nitrate and bacteria to continue anaerobic culture so as to obtain an organic acid. In the present invention, sludge microbes are acclimatized and then added to high-value chemicals such as acetic acid, propanoic acid and lactic acid prepared in biological conversion of the urban organic waste and then added with bacteria. Thus, by controlling pH value, microbe addition amount and nitrate concentration, the unfavorable effect of the antibiotics and heavy metal ions.

Abstract: Isolated direct DC/DC converter topology structure for fuel cell system includes: Boost converter topology structure and bidirectional full-bridge converter topology structure connected in sequence. Input of the Boost converter topology structure is connected to fuel cell, and output of the Boost converter topology structure is connected to other key components of the fuel cell system and input of the bidirectional full-bridge converter topology structure. Output of the bidirectional full-bridge converter topology structure is connected to power cell. Usage of the Boost converter topology structure and usage of the bidirectional full-bridge converter topology structure change under different operating states of the fuel cell system. Based on insulation performance and high efficiency of the fuel cell system, the usage of the Boost converter topology structure and the usage of the bidirectional full-bridge converter topology structure change.

Abstract: The present disclosure provides an ionic gel film preparation method, a chemical sensor and preparation method thereof, relating to the field of sensor technology. The preparation method of ionic gel film includes: blending a vinyl-free ionic liquid with a vinyl-containing ionic liquid and a specified additive to obtain a homogenous solution, taking a predetermined amount of the homogenous solution and dropping it onto a first substrate equipped with interdigital electrodes, flattening the homogenous solution on the first substrate using a second substrate, curing the flattened homogenous solution on the first substrate using ultraviolet light of a preset wavelength, and curing until the vinyl-containing ionic liquid polymerizes in situ to form an ionic gel film. The preparation method of ionic gel film, chemical sensor, and preparation method thereof of the present disclosure have the advantages of good device consistency, high conductivity, and good sensing performance when using the ionic gel film.

Abstract: A vehicle state estimation method based on adaptive total variation denoising (TVD) filtering includes the following steps: step 1: collection and preprocessing of an original signal of a vehicle; step 2: noise level evaluation; step 3: Teager-Kaiser energy evaluation; step 4: optimization problem construction; and step 5: application of a filtered signal in the step 4 in the estimation of a vehicle state. The vehicle state estimation method is mainly based on the global noise level characteristic and the local intensity change characteristic of the vehicle system state data, and adaptive filtering of parameters is achieved by means of a TVD filtering method. The signal is denoised to the maximum extent, peak information of the signal is retained while the data smoothness is maintained, and then the signal is used for vehicle state estimation, working condition identification and the like.

Abstract: A vehicle state estimation method based on adaptive total variation denoising (TVD) filtering includes the following steps: step 1: collection and preprocessing of an original signal of a vehicle; step 2: noise level evaluation, step 3: Teager-Kaiser energy evaluation; step 4: optimization problem construction; and step 5: application of a filtered signal in the step 4 in the estimation of a vehicle state. The vehicle state estimation method is mainly based on the global noise level characteristic and the local intensity change characteristic of the vehicle system state data, and adaptive filtering of parameters is achieved by means of a TVD filtering method. The signal is denoised to the maximum extent, peak information of the signal is retained while the data smoothness is maintained, and then the signal is used for vehicle state estimation, working condition identification and the like.

Abstract: A thermal pretreatment method for organic solid waste based on forced hot air convection is performed as follows. Experimental materials are grouped into an experimental group and a control group. The experimental group is subjected to thermal pretreatment in a thermal pretreatment device, and then removed. The experimental group and the control group are subjected to enzymatic hydrolysis and physicochemical characterization, and the analysis results are compared. A thermal pretreatment device for organic solid waste based on forced hot air convection is also provided.

Abstract: A novel function-recoverable prefabricated seismic shear wall structure with replaceable components, which includes main structural components, connecting components and replaceable components. All components are connected by bolts or pins. The connections can provide sufficient strength to effectively connect adjacent upper and lower wall panels, or wall panel and coupling beam, together. The replaceable components are installed in the bottom region of the wall and coupling beams, which provide sufficient bearing capacity and stiffness for the building structure under service loads and dissipate seismic energy under the earthquake. The damage concentrates on the replaceable components which could be easily replaced after a strong earthquake so that the function of the building structure could be quickly restored.

Abstract: The present disclosure provides an ionic gel film preparation method, a chemical sensor and preparation method thereof, relating to the field of sensor technology. The preparation method of ionic gel film includes: blending a vinyl-free ionic liquid with a vinyl-containing ionic liquid and a specified additive to obtain a homogenous solution, taking a predetermined amount of the homogenous solution and dropping it onto a first substrate equipped with interdigital electrodes, flattening the homogenous solution on the first substrate using a second substrate, curing the flattened homogenous solution on the first substrate using ultraviolet light of a preset wavelength, and curing until the vinyl-containing ionic liquid polymerizes in situ to form an ionic gel film. The preparation method of ionic gel film, chemical sensor, and preparation method thereof of the present disclosure have the advantages of good device consistency, high conductivity, and good sensing performance when using the ionic gel film.

Abstract: The present application discloses a method for calibrating a parameter error of an electron probe microanalysis instrument. A one-dimensional grating standard template is prepared based on atom lithography technology. A theoretical grating period D of the one-dimensional grating standard template is calculated. The one-dimensional grating standard template is statically placed on a stage of the electron probe microanalysis instrument. The electron probe microanalysis instrument scans the one-dimensional grating standard template on the stage, performs image acquisition and measurement on a grid distance of the one-dimensional grating standard template to obtain a grating scanning distance measurement value L, and records a magnification ratio at this time. A calibration factor K under the magnification ratio is calculated according to D and L.

Abstract: The present invention relates to a damage-free engagement device for wind-resistance of base-isolated structures. It includes a rubber seismic isolation support, upper and lower connecting plates, and a wind-resistance stiffness adjuster. The adjuster comprises a horizontal sliding bearing plate, a vertical guide groove, and components within the guide groove. These components include a bird beak plate, a disc spring group, and a stiffness adjustment bolt. The bird beak plate slides along the guide groove and engages with the sliding bearing plate. The invention improves horizontal stiffness while maintaining seismic isolation. It achieves a “wind lock-seismic unlock-wind lock” mechanism without component replacement, reducing maintenance costs.

Abstract: A longitudinal and lateral vehicle motion cooperative control method based on a fast solving algorithm comprises the following steps: calculating a desired yaw rate according to a steering wheel rotation angle and a current vehicle traveling speed; constructing a nonlinear optimization problem according to the desired yaw rate and a current actual motion state of a vehicle, wherein an objective function of the nonlinear optimization problem is used for tracking the desired yaw rate, and simultaneously for restraining a lateral speed and a tire slip ratio of the vehicle; solving the nonlinear optimization problem to calculate desired slip ratios of four tires; calculating an additional torque of each tire according to an actual slip ratio and the desired slip ratio of the tire; and sending the additional torque of each tire to an actuator of the vehicle for cooperative control.

Abstract: The present disclosure relates to a method and system for improving solid-liquid separation performance of sludge by in-situ crystallization of water. The method comprises the following steps: adding sludge into a pressure vessel, intermittently introducing high-pressure carbon dioxide at a low-temperature condition to generate a carbon dioxide hydrate until a partial pressure of the carbon dioxide is stable, releasing the pressure, and stirring the sludge until no gas escapes, thus obtaining the treated sludge. Compared with the prior art, the method and system provided by the present disclosure are simple and easy to implement, has no consumption of sludge dewatering conditioning agents, and can achieve the recycling of carbon dioxide.

Abstract: A microbial inoculant for high-speed humification of organic waste and a preparation method thereof are provided. According to the present disclosure, the microbial inoculant is prepared from Geobacillus stearothermophilus GT1, Thermus tengchongensis GT2, and Thermus amyloliquefaciens GT3. According to the present disclosure, the microbial inoculant prepared from hyperthermophiles with different functions directionally degrades proteins, promotes humification, and degrades complex polysaccharides and organic waste. The resulting products contain rich surface oxygen-containing functional groups, which can adsorb heavy metals and reduce the heavy metal migration rate. Meanwhile, the preparation method of the microbial inoculant provided by the present disclosure can solve the problem that multiple microbial strains are difficult to enrich, and materials for preparing the microbial inoculant can be recycled, which are environmentally friendly and free of secondary pollution.