Abstract: A superamphiphobic coating with durable wear resistance and corrosion resistance for an aluminum alloy surface and a preparation method therefor are provided. A superamphiphobic paint includes, in parts by weight: 10-15 parts of modified SiO2 particles, 10-15 parts of modified TiO2 particles, 5-10 parts of PTFE, and epoxy resin matrix. The preparation method for the superamphiphobic coating includes: pre-mixing raw materials, uniformly depositing components in a pre-mixed solution on the aluminum alloy surface by electrophoresis, followed by baking to obtain the superamphiphobic coating. A superamphiphobic paint is pollution-free during production and use, and the superamphiphobic coating has high cross-linking density, low curing shrinkage rate, high wear resistance, high hardness, superhydrophobicity, and oleophobiccity.

Abstract: A grinding simulation test device and method for a steel turnout rail of rail transit are provided. The device includes a rotary unit, a reciprocating unit, a turnout swinging unit, and a pressurizing unit. The rotary unit includes a grinding tool rotary mechanism, a temperature monitoring mechanism and a turnout grinding tool. A movable end of the grinding tool rotary mechanism is detachably connected to the turnout grinding tool through a torque sensor, to thereby drive the turnout grinding tool to rotate and monitor a torque. The temperature monitoring mechanism is configured to monitor temperatures during a grinding process. Through the reciprocating unit, the rotary unit, the turnout swinging unit and the pressurizing unit, four main influencing parameters, namely, moving speed, rotary speed, grinding angle and grinding pressure of a grinding tool, are disassembled into four independent parameters, thereby improving controllability and operability of each single parameter under laboratory conditions.

Abstract: A level sensor includes a housing and at least one sensor that is designed to measure a pressure of a medium and that is electrically connected to evaluation electronics. The level sensor also includes a connection cable that is guided through the housing in a sealing section. At least one crimp sleeve is pressed around the connection cable in the sealing section inside the housing. A pressing element is fastened in the sealing section of the housing in such a way that the crimp sleeve is pressed against a sealing surface of the sealing section. The housing or at least the sealing section of the housing is at least partially filled with a first casting, and the casting encloses the connection cable, at least in sections.

Abstract: A grinding simulation test device and method for a steel turnout rail of rail transit are provided. The device includes a rotary unit, a reciprocating unit, a turnout swinging unit, and a pressurizing unit. The rotary unit includes a grinding tool rotary mechanism, a temperature monitoring mechanism and a turnout grinding tool. A movable end of the grinding tool rotary mechanism is detachably connected to the turnout grinding tool through a torque sensor, to thereby drive the turnout grinding tool to rotate and monitor a torque. The temperature monitoring mechanism is configured to monitor temperatures during a grinding process. Through the reciprocating unit, the rotary unit, the turnout swinging unit and the pressurizing unit, four main influencing parameters, namely, moving speed, rotary speed, grinding angle and grinding pressure of a grinding tool, are disassembled into four independent parameters, thereby improving controllability and operability of each single parameter under laboratory conditions.

Abstract: The present disclosure provides an intelligent low-carbon treatment and reuse system for stormwater and wastewater, including: a bioretention module for collecting stormwater and treating it to obtain treated stormwater; a numerically controlled drainage module for collecting oxidation-reduction potential data and pH data of the treated stormwater and transmitting them to a control module as environmental data, and discharging treated stormwater for a preset time period based on a first control signal sent by the control module; a stormwater and wastewater collection module for storing the discharged treated stormwater and maintaining water storage volume within a preset range; an irrigation module; and the control module. Stable, efficient and low-carbon treatment and reuse of stormwater and wastewater are achieved.

Abstract: The present invention relates to a polysubstituted isoindoline compound as shown in general formula (I), and a preparation method, a pharmaceutical composition and the use thereof. In particular, the polysubstituted isoindoline compound is provided in the present invention as a class of novel CRL4CRBN E3 ubiquitin ligase modulators in structure, wherein same has a stronger antitumor activity and antitumor spectrum, and can be used to prepare drugs for treating CRL4CRBN E3 ligase-related diseases.

Abstract: The present disclosure provides an intelligent low-carbon treatment and reuse system for stormwater and wastewater, including: a bioretention module for collecting stormwater and treating it to obtain treated stormwater; a numerically controlled drainage module for collecting oxidation-reduction potential data and pH data of the treated stormwater and transmitting them to a control module as environmental data, and discharging treated stormwater for a preset time period based on a first control signal sent by the control module; a stormwater and wastewater collection module for storing the discharged treated stormwater and maintaining water storage volume within a preset range; an irrigation module; and the control module. Stable, efficient and low-carbon treatment and reuse of stormwater and wastewater are achieved.

Abstract: The present invention relates to a kind of pigment preparation, in particular to a modified layered silicate novel barrier and shielding pigment and its preparation method. It is a layer silicate with exchangeable anticorrosive ions as a template, using metal oxides or metal salts, inorganic acids to synthesize nano-spherical zinc phosphate, phosphate, molybdate, borate or tungstate, with rare earth cerium, strontium, lanthanum or praseodymium doped modification of the pigment. The invention uses silicate as a template to effectively control the agglomeration of nanoparticles during the liquid phase deposition process, avoiding the multiple cleaning and sewage treatment processes required by using surfactants and solvents. What is more valuable is lamellar silicic acid. The salt itself has certain anti-corrosion properties and is economical.

Abstract: A process of preparing an ultra-high molecular weight polyethylene (UHMWPE) anti-wear composite material modified by a manganese phosphate nanosheet is as follows: a trihydrate manganese phosphate nanosheet and UHMWPE powder are prepared firstly, and then the trihydrate manganese phosphate nanosheet is mechanically mixed with UHMWPE powder to form mixed powder; finally, the mixed powder is heated, molded, melted, and solidified using a hot-pressing method; and after cooling and demolding, the modified UHMWPE anti-wear composite material is obtained. Since the trihydrate manganese phosphate nanosheet can form a manganese phosphate film during a friction process, the manganese phosphate film can effectively reduce the deformation and tearing of friction surfaces of materials, thereby improving the anti-friction and anti-wear performance of UHMWPE. The friction coefficient, wear depth, and width of the UHMWPE anti-wear composite material under dry friction conditions are significantly improved.

Abstract: Provided are a system and a method for impact testing and monitoring of a high-energy flexible net. The system includes a vertical impact testing unit, a slope impact testing unit, an impact simulation unit, and an impact monitoring unit. The vertical impact testing unit includes a vertically positioned gravity wall. The slope impact testing unit includes a wall slope positioned perpendicularly to a second side of the gravity wall. A first side of the gravity wall and a slope surface of the wall slope are securely provided with a flexible net, respectively. The impact simulation unit includes an impact assembly and a lifting assembly. The impact monitoring unit is configured to monitor a deformation result and an internal force change result of the flexible net.

Abstract: The present disclosure provides a hydrogel tablet for relieving alcoholism and protecting the liver as well as the preparation process and application thereof. The present disclosure firstly provides a composition with the effects of relieving alcoholism and protecting the liver, which comprises the following components on the basis of weight parts: 20˜40 parts of chitosan, 25˜55 parts of sodium alginate, 3˜20 parts of gelatin, 1˜10 parts of calcium carbonate and 0.05˜0.5 parts of gallic acid. Based on this composition, the present disclosure further provides a hydrogel tablet for relieving alcoholism and protecting the liver. In the present disclosure, chitosan, sodium alginate and calcium carbonate are compounded at an appropriate proportion to form powder particles of chitosan/sodium alginate (shell)-calcium carbonate (core), into which are additionally added gelatin and gallic acid to get a product that is the hydrogel tablet.

Abstract: A multi-mode magnetic treatment device combining a permanent magnetic field and an electromagnetic field includes a base, a sample stand, an electromagnetic mechanism, a permanent magnetic mechanism, a permanent magnetic mechanism motion drive unit, a sample stand ascent-descent drive unit and a control system. The sample stand, the electromagnetic mechanism and the permanent magnetic mechanism are mounted on the base. The electromagnetic mechanism and the permanent magnetic mechanism are connected to the control system. The permanent magnetic mechanism is mounted on the base through the permanent magnetic mechanism motion drive unit. The sample stand is mounted on the base through the sample stand ascent-descent drive unit. A magnetic field of the electromagnetic mechanism and a magnetic field of the permanent magnetic mechanism respectively act on the sample stand to apply a rotational permanent magnetic force and an alternating electromagnetic force to a sample.

Abstract: The disclosure herein describes providing signature data of an input document. Text data of the input document is obtained (e.g., OCR data generated from image data) and a first set of signature fields are identified using signature key-value pairs of the text data. A first subset of signed signature fields and a first subset of unsigned signature fields are determined based on mapping to a set of predicted values. A second set of signature fields are determined using a region prediction model applied to image data of the input document. Region images associated with the first subset of unsigned signature fields and with second set of signature fields are obtained and a second set of signed signature fields and a second set of unsigned signature fields are determined using a signature recognition model. Signature output data is provided including signed signature fields and/or unsigned signature fields.

Abstract: Disclosed herein are testing apparatuses for testing stresses in substrates. The testing apparatus includes a base, a first plate coupled to the base, the first plate being movable relative to the base along a first axis, a second plate coupled to the base, the second plate being movable relative to the base and relative to the first plate along a second axis that is perpendicular to the first axis, a first actuator operable to move the first plate along the first axis towards or away from the second plate, a second actuator operable to move the second plate along the second axis relative to the first plate, and a controller operatively connected to the first actuator and the second actuator operable to control movement of the first plate and the second plate.

Abstract: The disclosure herein describes providing signature data of an input document. Text data of the input document is obtained (e.g., OCR data generated from image data) and a first set of signature fields are identified using signature key-value pairs of the text data. A first subset of signed signature fields and a first subset of unsigned signature fields are determined based on mapping to a set of predicted values. A second set of signature fields are determined using a region prediction model applied to image data of the input document. Region images associated with the first subset of unsigned signature fields and with second set of signature fields are obtained and a second set of signed signature fields and a second set of unsigned signature fields are determined using a signature recognition model. Signature output data is provided including signed signature fields and/or unsigned signature fields.

Abstract: Provided in the present disclosure are a conveying mechanism and a nucleic acid detection apparatus. Specifically, the conveying mechanism includes: a frame; a movable plate, movably disposed on the frame in a horizontal direction, the movable plate having a material carrying position located above the frame and a material picking-up position protruding forward from the frame; and a first carrying table, movably disposed on the movable plate in a vertical direction.

Abstract: A composite material for rapid blood clotting and its preparation method are provided. The composite material includes the following raw materials in parts by weight: 8˜20 parts of chitosan, 7˜14 parts of salicylaldehyde, 8˜16 parts of 2-aminoisonicotinic acid, 1.5˜3.5 parts of ferrous sulfate, 3˜5 parts of dopa, and 10˜15 parts of disodium hydrogen phosphate. The composite material for rapid blood clotting has good stability, high biological safety, significant effects on blood clotting, simple process, and easy industrial production.

Abstract: An edge surface includes a first peripheral surface extending between a first major surface and an outer peripheral surface of a substrate. The first peripheral surface includes a first depth and a first width. In aspects, the first depth is from about 4 micrometers to about 12 micrometers, and the first width is from about 30 micrometers to about 50 micrometers. In aspects, the first depth is from about 14 micrometers to about 24 micrometers, and the first width is from about 40 micrometers to about 60 micrometers. In aspects, a ratio of the first depth to a substrate thickness is from about 0.2 to about 0.4, a ratio of the first width to the substrate thickness is from about 1 to about 1.55, and a ratio of the first width to the first depth is from about 2 to about 8.

Abstract: A method for generating millimeter wave noise with a flat RF (radio frequency) spectrum includes the following steps. A noise optical signal with an optical spectrum in Gaussian shape is output by a first optical emission module. The noise optical signal is transmitted to an optical coupler. n beams of noise optical signals with optical spectra in Gaussian shape is output by a second optical emission module. The noise optical signals is transmitted to the optical coupler. The noise light generated by the first optical emission module and the second optical emission module is coupled to the optical coupler. The coupled optical signals is transmitted to a photodetector. The beat frequency is performed by the photodetector to realize mapping transformation from the optical spectra to the RF spectra. The flat millimeter wave noise is output.

Abstract: A composite material for rapid blood clotting and its preparation method are provided. The composite material includes the following raw materials in parts by weight: 8˜20 parts of chitosan, 7˜14 parts of salicylaldehyde, 8˜16 parts of 2-aminoisonicotinic acid, 1.5˜3.5 parts of ferrous sulfate, 3˜5 parts of dopa, and 10˜15 parts of disodium hydrogen phosphate. The composite material for rapid blood clotting has good stability, high biological safety, significant effects on blood clotting, simple process, and easy industrial production.