Abstract: A method for preparing error recovery of a memory device included in a memory system includes performing a training operation of the memory device upon power-on of the memory system, booting an operating system into a normal mode by operating the memory device using a selected operation frequency of a plurality of operation frequencies based on results of the training operation, detecting an error frequency among the plurality of operation frequencies in response to a change of the selected operation frequency of the memory device by the operating system, the error frequency being an operation frequency which causes at least one error in the memory device, and storing information regarding the detected error frequency in a first register included in a memory controller associated with the memory device.

Abstract: In an embodiment of the present invention, a proton conductive oxide fuel cell comprising an electrode substrate, a proton conductive oxide electrolyte layer positioned on the electrode substrate, a proton conductive oxide reaction prevention layer positioned on the electrolyte layer, and a proton conductive oxide air electrode layer positioned on the reaction prevention layer, wherein the reaction prevention layer is composed of ABO3-? structured perovskite proton conductive oxide, may be provided.

Abstract: The sintered body including silicon oxide and carbon, wherein the sintered body has a D band peak at a wave number of 1,311 cm?1 to 1,371 cm?1 and a G band peak at a wave number of 1,572 cm?1 to 1,632 cm?1 in a Raman spectrum, and wherein the D band peak or the G band peak have a higher intensity than a fifth peak present at a wave number of 1,027 cm?1 to 1,087 cm?1 in the Raman spectrum, is disclosed.

Abstract: A battery cell internal pressure measurement apparatus for measuring an internal pressure of at least one battery cell according to an example embodiment of the present disclosure may include a jig housing configured to accommodate the at least one battery cell, and a jig cover coupled to the jig housing and configured to cover the at least one battery cell. The at least one cell groove into which the at least one battery cell is inserted may be formed at a bottom of the jig housing.

Abstract: The present invention relates to an alloy-coated steel sheet comprising: a steel sheet, and Al—Mg—Si—Zn alloy layer positioned on the steel sheet, wherein the Al—Mg—Si—Zn alloy layer comprises a Mg—Zn alloy phase, and wherein the Mg—Zn alloy phase comprises MgZn2 and Mg2Zn11, and the Mg—Zn alloy phase further comprises at least one of MgZn, Mg21Zn25, Mg51Zn20 and Mg2Zn3.

Abstract: A black plated steel sheet includes a steel sheet and an Al—Mg—Si-based plating layer disposed on one surface or both surfaces of the steel sheet; in which the plating layer includes a black layer on the outermost surface thereof, and the black layer has a weight ratio of O to (Al+Mg+Si+O) of 0.01 to 0.6.

Abstract: The present exemplary embodiments relates to a negative electrode for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery comprising the same. An exemplary embodiment may provide a negative electrode for a lithium secondary battery comprising current collector and a negative active material layer positioned on at least one surface of the current collector, and comprising a lithium metal layer, wherein the negative active material layer comprising the lithium metal layer, comprises a coating layer positioned on the current collector and comprising a metal seed, and a lithium metal layer positioned on the coating layer.

Abstract: Embodiments of the present invention provide a technique for forming a film having a high added value appearance quality and excellent hardness on the surface of a steel sheet in a short time.

Abstract: The present invention relates to an alloy-coated steel sheet comprising: a steel sheet, and Al—Mg—Si—Zn alloy layer positioned on the steel sheet, wherein the Al—Mg—Si—Zn alloy layer comprises a Mg—Zn alloy phase, and wherein the Mg—Zn alloy phase comprises MgZn2 and Mg2Zn11, and the Mg—Zn alloy phase further comprises at least one of MgZn, Mg21Zn25, Mg51Zn20 and Mg2Zn3.

Abstract: A black plated steel sheet includes a steel sheet and an Al—Mg—Si-based plating layer disposed on one surface or both surfaces of the steel sheet; in which the plating layer includes a black layer on the outermost surface thereof, and the black layer has a weight ratio of O to (Al+Mg+Si+O) of 0.01 to 0.6.

Abstract: Embodiments of the present invention provide a technique for forming a film having a high added value appearance quality and excellent hardness on the surface of a steel sheet in a short time.