Abstract: The present invention relates to the field of intelligent vehicles, and more specifically, to a human-machine shared control method based on trajectory prediction. It comprises: establishing a road-vehicle model based on vehicle-related parameters and then designing a path-tracking controller; further predicting the driver's driving trajectory, evaluating the driving risk, and switching the control power between the automatic system and the human driver based on the driving risk. The present invention ensures that when the driver's inputs will cause high risk to the vehicle, the driver's input is deprived of; and that when the driver's driving inputs will not cause high risk to the vehicle, the driving is carried out by the driver, so that in the case where the automatic system is having a problem, the driver can effectively realize a safe intervention, and the safety of the intelligent driving is improved.

Abstract: A method analyzes global average grayscale change of tundish ink tracing experiment. The method includes the following steps: building a water model based on a prototype size and production parameters of a tundish; carrying out experiments by using the water model to obtain a video file of the ink tracing; processing the video file and extracting a characteristic curve of a global average grayscale changing with the time; analyzing the characteristic curve, and extracting a global peak grayscale time, a global tracer residual volume and a global emptying time as indicators for evaluating a tundish structure and flow characteristics of the tundish structure.

Abstract: An automatic pressure regulating valve for an electro-pneumatic braking system of a commercial vehicle comprises an upper valve body and a lower valve body. The upper valve body includes a normally open switching valve, a quick-acting intake valve, a normally open quick-acting intake valve, a quick-acting exhaust valve, and a control chamber A. A lower valve body includes a relay valve and a working chamber B. The normally open switching valve has a manually controlled air inlet a and an electronically controlled air inlet b, and an air outlet c connected to an air inlet d of the normally open quick-acting intake valve. An air outlet e of the normally open quick-acting intake valve, an air inlet f of the quick-acting exhaust valve and an air outlet i of the quick-acting air intake valve are connected together to the control chamber A.

Abstract: It is provided a water-saturated carbon molecular sieve membrane obtainable by a) providing a hydrophilic carbon molecular sieve membrane (CMSM) comprising pores of a pore size from 0.25 nm to 0.55 nm for molecular sieving, pores of a pore size from 0.55 nm to 0.90 nm for adsorption diffusion and a negligible amount of pores larger than 0.90 nm such that a plot of N2 permeance versus pressure of permeation at room temperature and at a pressure from 1 to 4 bar has zero or negative slope; and b) humidifying the membrane until obtaining a water-saturated carbon molecular sieve membrane. It is also provided a process for the separation of a gas from a gas mixture with such a water-saturated membrane, and its use for solvent dehydration, and as a membrane reactor.

Abstract: The present invention relates to a Si-containing high-strength and low-modulus medical titanium alloy, and an additive manufacturing method and use thereof. The additive manufacturing method comprises alloy ingredient design, powder preparation, model construction and substrate preheating, and additive manufacturing molding; wherein the Si-containing high-strength and low-modulus medical titanium alloy is designed in the ingredient proportion of Ti 60-70 at. %, Nb 16-24 at. %, Zr 4-14 at. %, Ta 1-8 at. %, Si 0.1-5 at. %.

Abstract: An electroactive bio-carrier module and a sewage treatment device using same are provided, which relate to the field of bioelectrochemistry and sewage treatment. The electroactive bio-carrier module is composed of an anode module and a cathode module made of a conductive material. The anode module is formed by connecting carbon fiber brushes in series and is of a vertically ring type structure; the cathode module is formed by connecting stainless steel meshes in series; the stainless steel meshes are in a folded horizontal stacked design; the anode and cathode modules are connected through an external lead wire to form a circuit. Surfaces of the anode and cathode modules can both enrich microorganisms, biofilms are formed on the surfaces. The electrode module is arranged in an up-flow type sewage treatment device and is used as an electroactive bio-carrier, to form a hybrid sewage treatment device with a built-in electroactive bio-carrier.

Abstract: The gas measurement device includes a gas sensor disposed in a gas chamber, a filter configured to control passing gas molecules to the gas chamber, and a driving unit configured to move at least a part of a member defining the gas chamber.

Abstract: Embodiments of the present disclosure provides a method and device for constructing a multi-dimensional coupled vibration identification model for a roll system of a strip mill, the method comprising: performing preprocessing, signal decomposition, and reconstruction of the multi-dimensional data for the roll system of the strip mill monitored through technical monitoring by multiple sensors during a working process of the strip mill, and performing feature extraction of the reconstructed data using a wavelet packet energy approach; obtaining an initial multi-dimensional coupled vibration feature local identification model for the roll system of the strip mill based on Support Vector Machine (SVM) by using a Gaussian radial basis function as a kernel function of the SVM model; and training the initial multi-dimensional coupled vibration feature local identification model for the roll system of the strip mill using a multi-source heterogeneous information fusion approach based on the feature vector to obtain t

Abstract: The present invention belongs to the field of new material technology and relates to a bismuth/bismuth titanate heterojunction hollow nanospheres and methods for preparing the same and applications thereof. The bismuth/bismuth titanate heterojunction hollow nanospheres is obtained by adding a bismuth salt and tetrabutyl titanate into an organic solvent, mixing evenly, adding an inorganic alkali solution to generate a precipitation, then sequentially adding an organic amine and an organic acid, performing a solvothermal treatment to obtain bismuth titanate hollow nanospheres, and then thermally reducing the bismuth titanate hollow nanospheres with a borohydride under an inert atmosphere. The bismuth/bismuth titanate heterojunction hollow nanospheres provided not only exhibit significant photocatalytic activity in degrading tetracycline hydrochloride but also enable a tighter binding of the metal to the photocatalytic material, thus offering superior structural stability.

Abstract: The present invention relates to a phosphorescent material and the use thereof, and more particularly to a cyclic tetradentate metal platinum (II) complex phosphorescent material and the use thereof. The present invention provides a cyclic tetradentate metal platinum (II) complex phosphorescent material based on 8-phenylquinoline, benzoxazole, and phenoxy groups. It is a novel tetradentate platinum (II) complex with a 6/6/6 metal fused ring structure. The phosphorescent material of the tetradentate fused ring structure system of the present invention has the characteristics of easy modulation of HOMO and LUMO orbital energy levels and strong luminescence. It has good chemical stability and thermal stability and is easy to fabricate evaporation-type OLED devices. The organic electroluminescent device fabricated using the compound of the present invention as a light-emitting layer can reduce the start-up voltage and remarkably improve the external quantum efficiency.

Abstract: The present disclosure belongs to the technical field of purification, and particularly relates to a method for purifying an antimony chloride solution through arsenic removal. The method includes: 1) adding copper-antimony alloy into a crude arsenic-containing antimony chloride solution to be treated in a protective atmosphere to obtain an antimony chloride solution containing low-concentration arsenic impurities after a reaction; and 2) performing distillation and concentration on the antimony chloride solution containing low-concentration arsenic impurities to obtain a high-purity antimony chloride solution.

Abstract: A device for forming a V-shaped full-composite pressure vessel includes a semi-cylinder body mold, where the length of a cylinder body part of the semi-cylinder body mold is half of the length of a cylinder body of a processed pressure vessel; a groove for placing a valve seat is reserved at one end of a dome part of the semi-cylinder body mold, and a fiber yarn-dividing ring is mounted at the other end; the semi-cylinder body mold is connected to the valve seat through a spline; and the valve seat and the fiber yarn-dividing ring are in threaded connection with a rotating shaft of fiber winding equipment. According to this disclosure, a liner-free pressure vessel can be manufactured completely by processing a composite material, so the mass of the pressure vessel can be reduced. Furthermore, the mold is not required to be dissolved and taken out.

Abstract: Disclosed are a full-automatic high-pressure spray cleaning and rust prevention device and an application method thereof. The device comprises a cleaning platform, a center rod and a swingable clamp module; the center rod is arranged on the cleaning platform, and an upper end is fixedly provided with the swingable clamp module; the swingable clamp module comprises a worm gear and worm assembly and a clamp, and the worm gear and worm assembly is capable of driving the clamp to deflect up and down; a driving mechanism arranged in a bottom portion of the cleaning platform is in driving connection with the center rod, so that the center rod is capable of driving the swingable clamp module to realize vertical lifting motion and rotary station switching; and the cleaning platform is sequentially provided with a positioning and spraying area, an air-drying area and a rust prevention area around the center rod.

Abstract: The present disclosure discloses an efficient and regenerable nano manganese remover, and a method for preparing same and application thereof, belonging to the technical field of wastewater treatment and reuse. The manganese remover of the present disclosure includes Fe3O4, RGO, SiO2 and EDTA. The Fe3O4 nanoparticles are supported on the surface of the RGO, the SiO2 coats the Fe3O4, and the EDTA is grafted on the SiO2. First, Fe3O4-RGO is prepared. Then, a TEOS-ethanol solution is dropwise added, and the resulting mixture is allowed to react to obtain Fe3O4@SiO2-RGO composite particles. Finally, an EDTA-water solution is dropwise added to obtain the manganese remover. The manganese remover prepared in the present disclosure is magnetic, and the preparation process is simple and easy for industrial production. The nano manganese remover can quickly remove manganese in manganese-containing wastewater. A small amount of the manganese remover can achieve a large adsorption capacity.

Abstract: Disclosed is a suppression method for a multipath signal of an image mode based on correlation peaks of a satellite baseband signal, including the steps of: constructing a real-world direct-multipath two-dimensional color image mode data set; and building a multipath suppression model of a deep learning network based on a long-short term memory (LSTM) and a self-attention mechanism module, and training the model. In the present disclosure, a satellite signal can be quickly captured without losing the sensitivity of the captured signal, and a Beidou satellite baseband signal can be captured from a signal recorded in the real world, which enables the model to learn complex signal patterns, improving the accuracy and robustness of multipath signal suppression in urban complex scenes.

Abstract: A secondary disaster early warning method based on ground-based SAR monitoring of deformation data includes (1) real-time monitoring of a secondary disaster unstable area through ground-based SAR to obtain deformation monitoring data; (2) constructing a displacement-time curve generated by the secondary disaster unstable area over time; setting a monitoring period, and based on the displacement-time curve, constructing a displacement change triangular area model; (3) based on the displacement change triangular area model, constructing an area-time curve, and obtaining the area-time curve change trend and the displacement triangular area in the displacement-time curve according to the monitoring period; (4) dividing the secondary disaster development process into an initial deformation stage, a constant velocity deformation stage, and an accelerated deformation stage; (5) setting early warning levels corresponding to each stage for phased secondary disaster early warning; and (6) quickly and comprehensively id

Abstract: The present invention provides a crystal of a europium compound containing europium. The present invention enables the preparation of a crystal of a europium compound having a powder X-ray diffraction pattern having a first diffraction peak in diffraction angle (2?) range of 34.3° to 36.1° in which a half width of the first diffraction peak is 1.8° or less, and/or having a second diffraction peak in diffraction angle (2?) range of 28.6° to 29.6° and a third diffraction peak in diffraction angle (2?) range of 36.8° to 38.4° in which a half width of the second diffraction peak is 1.0° or less and a half width of the third diffraction peak is 1.6° or less, and being at least one compound selected from compounds represented by formulae (1) to (4): EuClx??(1) Eu(OH)2??(2) Eu(OH)2Cl??(3) EuOCl??(4) x is 0.05 or more and 5 or less.

Abstract: A metal artifact reduction (MAR) method and system for reducing metal artifacts from X-ray images. The method is suitable for CT images generated with metallic elements exterior to a patient being scanned, for example, where external probes are applied to a patient, such as ultrasound probes. The method may be embodied in a computer algorithm for use, for example, in radiotherapy treatment planning and patient positioning procedures. In one application, the disclosed technique improves the dose delivery accuracy in ultrasound-guided cardiac radioablation, making this treatment modality a viable option for cardiac arrhythmias.

Abstract: The present disclosure belongs to the technical field of heat exchangers, and provides a heat exchanger based on a Gyroid/Diamond (GD-type) hybrid minimal surface-based disturbance structure. The heat exchanger includes a core, headers, and flanges. The core includes a cold fluid channel and a hot fluid channel, the cold fluid channel and the hot fluid channel are separated by a parting sheet. An inlet and an outlet of the cold fluid channel are separated from an inlet and an outlet of the hot fluid channel by sealing bars. A GD-type hybrid minimal surface-based disturbance structure is inserted into the hot fluid channel. A cold fluid and a hot fluid are distributed in a cross-flow manner.

Abstract: Provided are a method and system for detecting an oil abrasive particle size. The method includes: acquiring a voltage signal of an oil abrasive particle in real time, where the voltage signal is generated in real time in a process that the oil abrasive particle passes through an electromagnetic abrasive particle sensor; establishing a voltage curve coordinate system with an amplitude of the voltage signal as a Y-axis and a time of the voltage signal as an X-axis, and obtaining a voltage curve; performing feature extraction on the voltage curve, and obtaining an area S defined by a voltage curve within a half voltage signal cycle T and the X-axis and a maximum absolute value A of a voltage signal value according to the voltage curve coordinate system; and inputting S and A to a trained back propagation neural network for prediction to obtain a predicted oil abrasive particle size.