Abstract: There is provided a dispenser fastening device that automatically fastens a dispenser to a container. The dispenser fastening device comprises a columnar housing, a link unit, a plate connected to the link unit, a side wall of the plate having a recessed shape, a finger tip spaced apart from the plate, a side wall of the finger tip having a recessed shape recessed, a finger base connecting the plate and the finger tip and installed on a first surface of the plate, a first adjusting pulley, a second adjusting pulley, and a driving pulley provided on a second surface opposite to the first surface of the plate, and a belt surrounding the first adjusting pulley, the second adjusting pulley, and the driving pulley, wherein a center of the first adjusting pulley, a center of the second adjusting pulley, and a center of the driving pulley form a triangle.

Abstract: A non-volatile memory device including: a first string including a first string select transistor, a first memory cell and a first ground select transistor, a second string including a second string select transistor, a second memory cell and a second ground select transistor, and a controller to apply a pass voltage to a first string select line from a first time, apply a first read voltage to a first word line during a first read section from the first time to a second time, apply a first ground select line voltage to a first ground select line from the first time, apply a ground voltage to a second string select line, apply the first ground select line voltage to a second ground select line during a first control section, and apply a first common source line voltage to a common source line during the first control section.

Abstract: A non-volatile memory device including: a first string including a first string select transistor, a first memory cell and a first ground select transistor, a second string including a second string select transistor, a second memory cell and a second ground select transistor, and a controller to apply a pass voltage to a first string select line from a first time, apply a first read voltage to a first word line during a first read section from the first time to a second time, apply a first ground select line voltage to a first ground select line from the first time, apply a ground voltage to a second string select line, apply the first ground select line voltage to a second ground select line during a first control section, and apply a first common source line voltage to a common source line during the first control section.

Abstract: The present invention relates to a chemical element analysis device and method for contaminants in a liquid. The chemical element analysis device for contaminants in a liquid according to the present invention comprises: a sample storage unit 10 for storing a sampled liquid sample 1; a laser unit 20 for emitting a laser beam 21: 21a, 21b, and 21c and irradiating the laser beam 21 to the sample 1: 1a, 1b, and 1c sprayed from the sample storage unit 10; and a spectrometer 30 for collecting plasma light 31: 31a, 31b, and 31c generated by irradiating the laser beam 21 to the sample 1, and measuring a spectrum of the plasma light 31.

Abstract: The present invention relates to a chemical element analysis device and method for contaminants in a liquid. The chemical element analysis device for contaminants in a liquid according to the present invention comprises: a sample storage unit 10 for storing a sampled liquid sample 1; a laser unit 20 for emitting a laser beam 21: 21a, 21b, and 21c and irradiating the laser beam 21 to the sample 1: 1a, 1b, and 1c sprayed from the sample storage unit 10; and a spectrometer 30 for collecting plasma light 31: 31a, 31b, and 31c generated by irradiating the laser beam 21 to the sample 1, and measuring a spectrum of the plasma light 31.