Abstract: Disclosed is a device for twisting electrostatic spinning superfine fiber. The device comprises an outer sleeve and a middle sleeve, wherein the outer sleeve sleeves the middle sleeve, an annular gap is formed between the outer sleeve and the middle sleeve, a melt inlet communicating with the annular gap is formed in the outer sleeve, a conical hole is formed in the bottom end of the outer sleeve, the top end of the conical hole communicates with the bottom end of the annular gap, and the outer sleeve is wrapped with a heating ring used for heating a melt in the annular gap; a cylindrical metal rod is arranged in the middle sleeve in a penetrating mode, an interval is formed between the metal rod and the middle sleeve, the bottom end of the metal rod is fixedly connected with a circular truncated cone located below the conical hole.

Abstract: Disclosed is a system and a method for electrospinning superfine fiber bundling, belonging to the technical field of artificial fiber manufacturing, and comprises a spinning nozzle and a bundling disk which are coaxially arranged; the spinning nozzle is arranged at an upper part of the bundling disk; the bundling disk is connected with a motor through a coupling; the motor rotates to drive the bundling disk to rotate; a guide groove is also arranged outside the bundling disk; a center of the bundling disk is provided with a shaft; the insulated outer ring, the central conductive ring, the insulated inner ring and the shaft are fixed by bonding or thermal compounding; inner and outer edges of the central conductive ring are smooth circular arc rounded corners; an inner edge of the insulated outer ring and an outer edge of the insulated inner ring are corresponding smooth rounded corners.

Abstract: Disclosed is a system and a method for electrospinning superfine fiber bundling, belonging to the technical field of artificial fiber manufacturing, and comprises a spinning nozzle and a bundling disk which are coaxially arranged; the spinning nozzle is arranged at an upper part of the bundling disk; the bundling disk is connected with a motor through a coupling; the motor rotates to drive the bundling disk to rotate; a guide groove is also arranged outside the bundling disk; a center of the bundling disk is provided with a shaft; the insulated outer ring, the central conductive ring, the insulated inner ring and the shaft are fixed by bonding or thermal compounding; inner and outer edges of the central conductive ring are smooth circular arc rounded corners; an inner edge of the insulated outer ring and an outer edge of the insulated inner ring are corresponding smooth rounded corners.

Abstract: The invention relates to a valve, in particular to a valve with self-locking function which comprises a valve body, a valve element, a valve control assembly, an upper locking assembly and a lower locking assembly; the valve body comprises an upper box body, a lower box body, a water inlet pipe and a water outlet pipe; the lower end of the upper box body is fixedly connected and communicated with the lower box body, the left end of the lower box body is fixedly connected with the water inlet pipe, and the right end of the lower box body is fixedly connected with the water outlet pipe.

Abstract: The invention relates to a valve, in particular to a quantitative water adjusting valve which comprises a valve body and a sealing pressure column, a control mechanism, a sealing element, a quantitative orifice plate and an end cover. The device disclosed by the invention is convenient to detach, so that the internal structure of the device is convenient to maintain; the valve can be quickly opened, and the valve can be slowly opened and closed through threads; under the condition that the water pressure is certain, the flow of water can be conveniently and quantitatively controlled.

Abstract: The invention relates to a valve, in particular to a valve with self-locking function which comprises a valve body, a valve element, a valve control assembly, an upper locking assembly and a lower locking assembly; the valve body comprises an upper box body, a lower box body, a water inlet pipe and a water outlet pipe; the lower end of the upper box body is fixedly connected and communicated with the lower box body, the left end of the lower box body is fixedly connected with the water inlet pipe, and the right end of the lower box body is fixedly connected with the water outlet pipe.

Abstract: The invention relates to a valve, in particular to an anti-leakage self-sealing valve which comprises a valve support, a rotary gear, a lower connecting plate, an upper connecting plate, a pinion, an upper closing plate, a lower closing plate and a conical connecting cylinder, a connecting support, a connecting cylinder, a clamping mechanism, a disassembling mechanism, a connecting rod and a one-way mechanism.

Abstract: An approach is provided for analyzing social relation in an aspect of polarity. A method comprises collecting data associated with interactions between a first user and a second user in a social network; and estimating a polarity of a social relation between the first user and the second user based on the collected data, to indicate whether the social relation between the first user and the second user is positive, negative, or neutral.

Abstract: The embodiments of the invention relates to a method and a technical equipment for social network. The method comprises determining a relation degree between a user and a connection for each user relation at a specific time; listing the determined relations in time order to create a time-serial relation sequence; repeating the previous steps for all connections of the user; and grouping the connections according to the created time serial relation sequences.