Abstract: A razor handle configured to be coupled to a razor cartridge is proposed. The razor handle may include a holder and two first coupling portions of which at least a part is disposed in the holder, and which include a latching portion including a first surface extended in a direction perpendicular to a direction in which the razor handle is coupled to the razor cartridge, and a second surface extended while being inclined inwardly forward from an end of the extended first surface. The razor handle may also include a detaching member configured to adjust a distance between the two first coupling portions, which has a first position in which the distance between the two first coupling portions is a first distance and a second position in which the distance between the two first coupling portions is a second distance shorter than the first distance.

Abstract: Proposed is a razor cartridge configured to be coupled to a razor handle including a first coupling portion having first and second surfaces. The razor cartridge may include at least one shaving blade having a cutting edge and a blade housing accommodating the at least one shaving blade in a longitudinal direction. The razor cartridge may also include a connector fixed to one side of the blade housing, which includes a second coupling portion configured to be coupled to the first coupling portion, and having a third surface configured to face the first surface. when the first and second coupling portions are coupled to each other, the connector may be configured to be pivotable about a pivot axis parallel to the longitudinal direction with respect to the razor handle, and the pivot axis may be disposed between an upper surface of the blade housing and the third surface.

Abstract: The present disclosure relates to a simulation apparatus for secondary battery production.

Abstract: A memory test device is provided including a command feature vector extractor and an address feature vector extractor. The command feature vector extractor extracts a command feature vector, based commands executed on memory cells among a plurality of memory cells. The address feature vector extractor extracts an address feature vector, based on address-related information indicating locations of the memory cells executing the commands.

Abstract: Disclosed is a battery diagnosing technology capable of effectively diagnosing a defective battery cell among a plurality of battery cells included in a battery system at an early stage. The battery system diagnosing apparatus diagnoses a battery system including a plurality of battery cells having electrode tabs therein, and includes a voltage measuring unit for measuring an end voltage at every charging or discharging for each of the plurality of battery cells; and a processor for accumulating the end voltage of each battery cell measured by the voltage measuring unit over time and detecting a battery cell having a defect in the electrode tab among the plurality of battery cells based on the accumulated end voltage trend.

Abstract: A battery diagnosing technology capable of effectively diagnosing a defective battery cell among a plurality of battery cells included in a battery system at an early stage. The battery system diagnosing apparatus diagnoses a battery system including a plurality of battery cells having electrode tabs therein, and includes a cell measuring unit for measuring a voltage or current for each of the plurality of battery cells; and a processor for calculating a state of health (SOH) for each battery cell multiple times over time by using the voltage or current measured by the cell measuring unit and detecting a battery cell having a defect in the electrode tab among the plurality of battery cells based on the SOH of each battery cell calculated multiple times.

Abstract: An apparatus estimating a state of charge (SOC)-open circuit voltage (OCV) profile, including: a storage unit storing: a beginning of life (BOL) positive electrode (PE) half-cell SOC-OCV profile and available range (AR), a BOL negative electrode (NE) half-cell SOC-OCV profile and AR, and a BOL full-cell SOC-OCV profile and total capacity (TC), and a control unit estimating a full-cell SOC-OCV profile at middle of life (MOL), including: an AR determination module for: calculating an MOL full-cell TC while a secondary battery is fully charged/discharged at MOL, and determining the MOL PE and NE ARs so a ratio of the MOL to the BOL full-cell TCs equals a ratio of the MOL to the BOL PE ARs and a ratio of the MOL to the BOL NE ARs, and a profile management module for: estimating, as an MOL full-cell SOC-OCV profile, a differential profile, and updating the BOL full-cell SOC-OCV profile.

Abstract: An apparatus estimating a state of charge (SOC)-open circuit voltage (OCV) profile, including: a storage unit storing: a beginning of life (BOL) positive electrode (PE) half-cell SOC-OCV profile and available range (AR), a BOL negative electrode (NE) half-cell SOC-OCV profile and AR, and a BOL full-cell SOC-OCV profile and total capacity (TC), and a control unit estimating a full-cell SOC-OCV profile at middle of life (MOL), including: an AR determination module for: calculating an MOL full-cell TC while a secondary battery is fully charged/discharged at MOL, and determining the MOL PE and NE ARs so a ratio of the MOL to the BOL full-cell TCs equals a ratio of the MOL to the BOL PE ARs and a ratio of the MOL to the BOL NE ARs, and a profile management module for: estimating, as an MOL full-cell SOC-OCV profile, a differential profile, and updating the BOL full-cell SOC-OCV profile.