Abstract: A lifting system for inner yarn rails relates to the technical field of twisting and weaving equipment in factories, the system comprises an in-air conveying rail, and a carrier unit, wherein the in-air conveying rail is configured to convey the carrier unit, and the carrier unit is configured to carry a winding package; an inner yarn-carrier-lifting section is arranged on the in-air conveying rail, the inner yarn-carrier-lifting section is positioned on both sides of a twisting machine; when the inner yarn-carrier-lifting section rises, it communicates with the in-air conveying rail; when the inner yarn-carrier-lifting section descends, it approaches the position of a spindle bucket of the twisting machine. The winding packages delivered each time by one carrier unit can correspond to every spindle position of the twisting machine, dramatically improving the delivery efficiency of the winding packages.

Abstract: The present disclosure provides a whole-process automatic loading-and-unloading and logistics system, including an outer yarn preparation area, an inner yarn preparation area, a weaving area and an in-air conveying rail; the outer yarn preparation area is configured to have a carrier assembly, which delivers an outer yarn winding package to an outer yarn branch rail of a twisting machine in a twisting area via the out yarn main rail of the in-air conveying rail; in the inner yarn preparation area, the carrier assembly delivers an inner yarn winding package to an inner yarn branch rail of the twisting machine in the twisting area via the inner yarn main rail of the in-air conveying rail; in the twisting area, the carrier assembly delivers a yarn product to a yarn product donning rail in the weaving area via the yarn product main rail of the in-air conveying rail.

Abstract: The present disclosure provides a twisting machine for automatic donning, including an outer yarn branch rail arranged at the middle position of the twisting machine, wherein the outer yarn branch rail is positioned above the twisting machine, so as to successively drive the outer yarn carrier assembly to deliver the outer yarn winding package by suspending; further including an inner yarn branch rail arranged at the both sides of the twisting machine, the inner yarn branch rail is positioned above the twisting machine, so as to successively drive the inner yarn carrier assembly to deliver the inner yarn winding package by suspending. The forementioned structure enables the outer yarn winding package and the inner yarn winding package to be delivered high-efficiently in large scale by suspending and conveying, so as to largely reduce the labor intensity of operators and greatly improve production efficiency.

Abstract: Provided are a mercapto group-loaded layered double hydroxide (LDH)-based magnetic composite particle, and a preparation method and use thereof. The method includes: dissolving a water-soluble divalent magnesium salt and a water-soluble trivalent aluminum salt in water to obtain a mixed salt solution; pumping ammonia water into the mixed salt solution, and performing reaction I under stirring, subjecting an obtained product to centrifugation, and washing product obtained with deionized water; mixing the product with water, ethanol, and a coupling agent KH-580 to obtain a mixture, subjecting the mixture to reaction II while stirring to obtain mercapto group-loaded LDH; mixing the mercapto group-loaded LDH with ferroferric oxide and sodium alginate, adding deionized water thereto, and stirring to obtain a homogeneous mixed solution; adding the homogeneous mixed solution into a calcium chloride solution dropwise to form a magnetic bead; and leaving the magnetic bead to harden, and then washing and drying.

Abstract: A model for predicting bioavailability of arsenic in site soil and a construction method and an application thereof, includes steps of: leveling soil after selecting a measuring point, vertically placing a measuring sleeve, fully supplying water to site soil to be measured, balancing for 20-40 min, measuring a water content in a soil volume not less than 40%, placing a piston DGT device into the measuring sleeve and pressing the device into soil, covering a top of the measuring sleeve with a wind shield, cleaning the piston DGT device after the measurement, analyzing a concentration of available arsenic by ICP-MS, and measuring available arsenic of soil; linearly fitting the available arsenic measured by a DGT method with human bioavailable arsenic measured by a UBM method, and obtaining a model for predicting bioavailability of arsenic in site soil.

Abstract: An automatic yarn feeding system is provided. The system comprises a yarn feeding track which is arranged on the twisting machine in a length direction of the twisting machine and provided with a yarn feeding manipulator walking along the yarn feeding track; and a supply zone which is arranged on one side of the yarn feeding track and used to buffer base yarns. The yarn feeding manipulator is used to convey the base yarns from the supply zone to a yarn feeding creel of each spindle position. The yarn feeding track is located in the middle of the top of the twisting machine. The supply zone is provided with a structure for buffering a plurality of base yarns, and is located on one side of an end of the yarn feeding track on the top of a control cabinet.

Abstract: A method for compact and flat bismuth metal preparation by electrolysis is provided. In the method, one or more of ?-naphthol, acacia, sulfonated and vulcanized alkylphenol ethoxylate and naphthol ethoxylate oxides are added to the acidic solution of bismuth methanesulfonate as additives, and the cathodic bismuth is obtained by electrolysis at 20-80° C. The method for bismuth metal preparation is simple and easy to promote, environment-friendly, and the obtained bismuth metal has a flat and compact surface and good plate formation effect.

Abstract: A method for measuring a stress field evolution during a CO2 fracturing process is provided, which is adopted to not only transparently display the spatial distribution and propagation morphology of internal fracturing fracture of a three-dimensional physical models, but also obtain internal three-dimensional stress phase diagram in a fracture propagation process by integration of a CT scanning, a digital reconstruction, a 3D printing, a CO2 fracturing experiment, a stress freezing and a photoelastic measurement techniques, thereby realizing transparent display and quantitative characterization of the three-dimensional stress field and its evolution law of a solid matter in the CO2 fracturing process.

Abstract: A method for measuring a stress field evolution during a CO2 fracturing process is provided, which is adopted to not only transparently display the spatial distribution and propagation morphology of internal fracturing fracture of a three-dimensional physical models, but also obtain internal three-dimensional stress phase diagram in a fracture propagation process by integration of a CT scanning, a digital reconstruction, a 3D printing, a CO2 fracturing experiment, a stress freezing and a photoelastic measurement techniques, thereby realizing transparent display and quantitative characterization of the three-dimensional stress field and its evolution law of a solid matter in the CO2 fracturing process.

Abstract: A device for stress-freezing experiments during fracturing process according to the present application, in which heating and cooling treatment on a specimen under corresponding temperature control according to a preset temperature gradient and a photosensitive curve is performed by a temperature control system, to realize stress-freezing of the specimen; a pressure is applied to a specimen by a true triaxial servo loading system; and corresponding fracturing experiments are performed to the specimen by a fracturing liquid pumping system having an output end arranged in a thermo-controlled oven.

Abstract: Embodiments of the present disclosure disclose a method and an apparatus for a terminal application to access a NAS. The method includes: when a request for a terminal application to access a NAS is received, sending an establishment request for a hole punching connection to the NAS, and receiving an establishment request for a hole punching connection sent by the terminal application; and after the hole punching connection with the terminal application and the hole punching connection with the NAS are successfully established, completing data transmission between the terminal application and the NAS based on the successfully established hole punching connections.

Abstract: A device for stress-freezing experiments during fracturing process according to the present application, in which heating and cooling treatment on a specimen under corresponding temperature control according to a preset temperature gradient and a photosensitive curve is performed by a temperature control system, to realize stress-freezing of the specimen; a pressure is applied to a specimen by a true triaxial servo loading system; and corresponding fracturing experiments are performed to the specimen by a fracturing liquid pumping system having an output end arranged in a thermo-controlled oven.

Abstract: Embodiments of the present disclosure disclose a method and an apparatus for a terminal application to access a NAS. The method includes: when a request for a terminal application to access a NAS is received, sending an establishment request for a hole punching connection to the NAS, and receiving an establishment request for a hole punching connection sent by the terminal application; and after the hole punching connection with the terminal application and the hole punching connection with the NAS are successfully established, completing data transmission between the terminal application and the NAS based on the successfully established hole punching connections.

Abstract: The invention presented relates to the field of network communication, and disclosed a method and means for retrieving Internet authentication information technically. This method comprises: connect the original functioning network device and receive the packets sent by it; extract the communication data sent to the ISP from those packets, and analyze it to figure out the authentication information needed to access the Internet; record that authentication information, and use or display it whenever adequate. The invention presented can help users retrieve the required authentication information without the need for help from ISPs, which can be very convenient for users who forgot his authentication information when trying to access the Internet or to replace the old network device with the new one.