Abstract: A platform service system and method for integrated battery management. The platform service system collects battery characteristic data of an electric vehicle through a network and accumulatively store the same to be matched with a battery identification code, calculates a current SOH of a battery by analyzing the battery characteristic data and store the same in a SOH history DB to be matched with the battery identification code, inquires the SOH history DB using the battery identification code to determine a current SOH when a reuse grade calculation request is received from a client along with the battery identification code, determines a reuse grade corresponding to the current SOH with reference to predefined reuse grade information for each SOH, and transmits the reuse grade to the client.

Abstract: A battery service providing system and method, the battery service providing system including a battery service server for collecting diagnostic analysis data including operation characteristic information of a battery and driving characteristic information of an electric vehicle from an electric vehicle control device and providing update information of a charging/discharging control logic of the battery according to the degree of degradation determined from the diagnostic analysis data to the electric vehicle control device, determining a residual value or a usage fee of the battery based on the determined degree of degradation, transmitting the usage fee or the residual value of the battery to an external server, or setting a warranty flag for the battery whose charging and discharging is controlled according to the update information of the charging/discharging control logic.

Abstract: A platform service system and method for integrated battery management. The platform service system collects battery characteristic data of an electric vehicle through a network and accumulatively store the same to be matched with a battery identification code, calculates a current SOH of a battery by analyzing the battery characteristic data and store the same in a SOH history DB to be matched with the battery identification code, inquires the SOH history DB using the battery identification code to determine a current SOH when a reuse grade calculation request is received from a client along with the battery identification code, determines a reuse grade corresponding to the current SOH with reference to predefined reuse grade information for each SOH, and transmits the reuse grade to the client.

Abstract: A ferritic stainless steel for an exhaust system heat exchanger having excellent sound absorption properties and a method for manufacturing the same are disclosed. The ferritic stainless steel for an exhaust system heat exchanger having excellent sound absorption properties includes, by weight percent, 0.001 to 0.01% of C, 0.001 to 0.01% of N, 0.2 to 1% of Si, 0.1 to 2% of Mn, 10 to 30% of Cr, 0.001 to 0.1% of Ti, 0.001 to 0.015% of Al, 0.3 to 0.6% of Nb, 0.01 to 2.5% of Mo, and the balance of Fe and other unavoidable impurities, wherein the number of inclusions existing in a ferrite matrix and satisfying the following Formula 1 is 5 ea/mm2 or more.

Abstract: A battery service providing system and method, battery service providing system including a battery service server for collecting diagnostic analysis data including operation characteristic information of a battery and driving characteristic information of an electric vehicle from an electric vehicle control device and providing update information of a charging/discharging control logic of the battery according to the degree of degradation determined from the diagnostic analysis data to the electric vehicle control device, determining a residual value or a usage fee of the battery based on the determined degree of degradation, transmitting the usage fee or the residual value of the battery to an external server, or setting a warranty flag for the battery whose charging and discharging is controlled according to the update information of the charging/discharging control logic.

Abstract: Disclosed are a ferrite-based stainless steel having improved surface characteristics and a method for manufacturing same. The ferrite-based stainless steel according to the present invention includes, in percent by weight (wt %), 0.001 to 0.05% of C, 0.001 to 0.05% of N, 0.1 to 1.0% of Si, 0.1 to 1.0% of Mn, 12.0 to 22.0% of Cr, 0.01 to 1.0% of Ti, 0.01 to 1.0% of Nb, and the remainder of Fe and unavoidable impurities, wherein micro flaws having a length of 100 ?m or more are distributed at a density of 5 pieces/mm2 or less.

Abstract: Disclosed are a ferritic stainless steel having improved corrosion resistance and a method for manufacturing same. The ferritic stainless steel according to an embodiment of the present disclosure includes, in percent by weight (wt%), 0.001 to 0.05% of C, 0.001 to 0.05% of N, 0.1 to 1.0% of Si, 0.1 to 1.0% of Mn, 12.0 to 22.0% of Cr, 0.01 to 1.0% of Ti, and 0.01 to 1.0% of Nb, with the balance being Fe and inevitable impurities, wherein an area ratio of microdefects is 2% or less, and a sulfur (S) content in a surface film within 5 mm from the surface is 10% or less.

Abstract: Provided is a ferritic stainless steel for an exhaust system heat exchanger and a method of manufacturing the same. The ferritic stainless steel includes, in percent (%) by weight of the entire composition, 0.003 to 0.1% of carbon (C), 0.01 to 2.0% of silicon (Si), 0.01 to 1.5% of manganese (Mn), 0.05% or less of phosphorus (P), 0.005% or less of sulfur (S), 10 to 30% of chromium (Cr), 0.001 to 0.10% of titanium (Ti), 0.001 to 0.15% of aluminum (Al), 0.003 to 0.03% of nitrogen (N), 0.3 to 0.6% of niobium (Nb), 0.01 to 2.5% of molybdenum (Mo), and the remainder of iron (Fe) and other inevitable impurities, wherein TiN precipitates having a size of 0.1 ?m or more are distributed in a surface layer of a ferrite matrix at a concentration of 2.5*104 ea/mm2 or less.

Abstract: Disclosed is a stainless steel having excellent surface electrical conductivity for a fuel cell separator. According to an embodiment of the disclosed stainless steel having excellent surface electrical conductivity for a fuel cell separator, a value of the following surface oxide atomic ratio (1) may be 0.08 or more, as measured on the surface of a stainless steel containing 15 wt % or more of Cr by X-ray angle-resolved photoemission spectroscopy using an Al-K? X-ray source under the condition where a take-off angle of photoelectrons is from 12° to 85°. sum ? of ? atomic ? concentrations ? ( at ? % ) ? of ? Cr ? in ? Cr ? hydroxide sum ? of ? atomic ? concentrations ? ( at ? % ) ? of ? metal ? elements in ? total ? oxides ? and ? hydroxides ( 1 ) The Cr hydroxide represents CrOOH, Cr(OH)2, or Cr(OH)3.

Abstract: Disclosed are an ionic liquid for pickling a stainless steel capable of rapidly removing oxide scale from the stainless steel at room temperature without using nitric acid or hydrofluoric acid and a method for pickling a stainless steel by using the same. The method for pickling a stainless steel according to an embodiment includes performing electrolytic pickling treatment by immersing a stainless steel in a pickling solution including an ionic liquid, wherein the ionic liquid comprises at least one of an imidazolium cation, a betainium cation, a sulfonium cation, a piperidinium cation, a phosphonium cation, an ammonium cation, a pyridium cation, a pyrrolidinium cation, and a morpholinium cation, as a cationic functional group, and at least one of a halide anion, a sulfonate anion, an alkylsulfate anion, a phosphinate anion, a salicylate anion, a nitrate anion, a tetrafluoroborate anion, a hexafluorophosphate anion, and a bistriflimide anion, as an anionic functional group.

Abstract: Disclosed are a ferritic stainless steel capable of inhibiting high temperature oxidation through generation of an effective oxide scale, and manufacturing method thereof. The ferritic stainless steel excellent in oxidation resistance at high temperature according to an embodiment of the present disclosure includes, in percent (%) by weight of the entire composition, Cr: 10 to 30%, Si: 0.2 to 1.0%, Mn: 0.1 to 2.0%, W: 0.3 to 2.5%, Ti: 0.001 to 0.15%, Al: 0.001 to 0.1%, the remainder of iron (Fe) and other inevitable impurities, and satisfies a following equation (1).

Abstract: A Ti, Nb-added ferritic stainless steel with excellent low-temperature toughness of weld zone according to an embodiment of present disclosure includes, in percent (%) by weight of the entire composition, C: 0.004 to 0.015%, N: 0.004 to 0.015%, Si: 0.01 to 0.7%, Mn: 0.01 to 0.7%, P: 0.0001 to 0.04%, S: 0.0001 to 0.005%, Cr: 10 to 30%, Al: 0.005 to 0.04%, Ti: 0.1 to 0.5%, Nb: 0.1 to 0.6%, Ca: 0.0001 to 0.003%, the remainder of iron (Fe) and other inevitable impurities, satisfies the following equation (1), and Al—Ca—Ti—Mg—O-based oxide and Ti—Nb—C—N carbonitride containing the oxide have an average diameter of 3 to 10 ?m and a distribution density of 4/mm2 or more. {(Ti+0.5*Nb)*(C+N)}/Al>0.

Abstract: Provided is a ferritic stainless steel for an exhaust system heat exchanger and a method of manufacturing the same. The ferritic stainless steel includes, in percent (%) by weight of the entire composition, 0.003 to 0.1% of carbon (C), 0.01 to 2.0% of silicon (Si), 0.01 to 1.5% of manganese (Mn), 0.05% or less of phosphorus (P), 0.005% or less of sulfur (S), 10 to 30% of chromium (Cr), 0.001 to 0.10% of titanium (Ti), 0.001 to 0.15% of aluminum (Al), 0.003 to 0.03% of nitrogen (N), 0.3 to 0.6% of niobium (Nb), 0.01 to 2.5% of molybdenum (Mo), and the remainder of iron (Fe) and other inevitable impurities, wherein TiN precipitates having a size of 0.1 ?m or more are distributed in a surface layer of a ferrite matrix at a concentration of 2.5*104 ea/mm2 or less.

Abstract: Disclosed are a ferritic stainless steel capable of inhibiting high temperature oxidation through generation of an effective oxide scale, and manufacturing method thereof. The ferritic stainless steel excellent in oxidation resistance at high temperature according to an embodiment of the present disclosure includes, in percent (%) by weight of the entire composition, Cr: 10 to 30%, Si: 0.2 to 1.0%, Mn: 0.1 to 2.0%, W: 0.3 to 2.5%, Ti: 0.001 to 0.15%, Al: 0.001 to 0.1%, the remainder of iron (Fe) and other inevitable impurities, and satisfies a following equation (1).

Abstract: A ferritic stainless steel for an exhaust system heat exchanger having excellent sound absorption properties and a method for manufacturing the same are disclosed. The ferritic stainless steel for an exhaust system heat exchanger having excellent sound absorption properties includes, by weight percent, 0.001 to 0.01% of C, 0.001 to 0.01% of N, 0.2 to 1% of Si, 0.1 to 2% of Mn, 10 to 30% of Cr, 0.001 to 0.1% of Ti, 0.001 to 0.015% of Al, 0.3 to 0.6% of Nb, 0.01 to 2.5% of Mo, and the balance of Fe and other unavoidable impurities, wherein the number of inclusions existing in a ferrite matrix and satisfying the following Formula 1 is 5 ea/mm2 or more.

Abstract: Disclosed are an apparatus, a method, and a recording medium for controlling a portable communication terminal and a smart watch of the portable communication terminal, which control an operation of a display unit only when a user obtains information on a movement of the smart watch from a sensor installed in the smart watch and view the smart watch.

Abstract: A method for calculating arrangement data between devices includes: receiving an input of a first point on a display of a first device; receiving an input of a second point on a display of a second device; and calculating arrangement data between the first device and the second device based on data of a virtual straight line connecting the first point and the second point, and the arrangement data include a distance between the first device and the second device and an angle between the first device and the second device.

Abstract: The present invention is directed to a system and method for providing vehicles with information about an event occurred on a road, capable of effectively providing information about an accident on a road to vehicles driving toward the region where the accident has occurred, even during hours or in regions in which vehicle traffic is low.

Abstract: A method for calculating arrangement data between devices includes: receiving an input of a first point on a display of a first device; receiving an input of a second point on a display of a second device; and calculating arrangement data between the first device and the second device based on data of a virtual straight line connecting the first point and the second point, and the arrangement data include a distance between the first device and the second device and an angle between the first device and the second device.

Abstract: The present invention relates to an apparatus and a method for sharing data by creating a topology, and the method for sharing data by a host terminal comprises the steps of: creating a topology for indicating a configuration of a wireless network between the host terminal and a plurality of adjacent terminals located within a standard distance from the host terminal; transmitting the topology to the plurality of adjacent terminals; receiving a participation request message for requesting participation in the wireless network according to the topology from at least one of the plurality of adjacent terminals; and sharing data, on the basis of the topology, with a least one of the adjacent terminals which transmitted the participation request message.