Abstract: The present disclosure relates to a user recognition method and a user recognition apparatus using a two-dimensional (2D) electromyogram (EMG) spectrogram image. The user recognition method using a 2D EMG spectrogram image may include (a) acquiring a one-dimensional EMG signal for a user, (b) converting the acquired one-dimensional EMG signal to a 2D EMG spectrogram image including a temporal feature and a frequency feature, and (c) recognizing the user based on the 2D EMG spectrogram image.

Abstract: A method of controlling an EOP of a powertrain may include determining, by a controller electrically connected to the EOP, whether an oil sloshing phenomenon in which it is difficult for oil to return to a space where an oil intake port of the EOP is positioned may occur while a vehicle is running; and reducing, by the controller, the revolutions per minute (RPM) of the EOP by a predetermined reduced RPM when it is determined that the oil sloshing phenomenon may occur.

Abstract: A fuel cell separator includes a separator body and porous structure. The porous structure is stacked on a body surface with pores therein to provide a fluid flow path. The body includes: an inlet part having a space into which the fluid is introduced, a reaction region receiving the fluid, and a diffusion part between the inlet part and the reaction region and a passage to provide a path supplying fluid within the inlet part to the reaction region. The porous structure is stacked on a reaction region surface. A first inlet region, provided at the same height as the inlet part in a height direction in a porous structure inlet region facing the diffusion part, is provided closer to a central region of the porous structure than a second inlet region except for the first inlet region in the inlet region of the porous structure facing the diffusion part.

Abstract: Disclosed is a fuel cell control system including: a fuel cell supplied with each of hydrogen and oxygen and configured to generate electric power by means of a chemical reaction therein; a cooling system having a heat-exchange device capable of exchanging heat with external air, the cooling system being configured such that cooling water circulates therein and exchanges heat with the fuel cell; a temperature sensing unit configured to sense a fuel cell temperature or a cooling water temperature in the cooling system; and a cooling control unit configured to control the cooling system so as to additionally cool the fuel cell when the fuel cell stops generating electric power, if the fuel cell temperature or the cooling water temperature sensed by the temperature sensing unit while the fuel cell generates electric power is equal to or higher than a preconfigured performance degradation temperature.

Abstract: A fuel cell includes a separator. A constant amount of air is supplied to the fuel cell irrespective of positions within an air channel, and thus, degradation of the fuel cell is prevented. The separator includes a separator body and a porous structure which has a plurality of pores defined therein to provide a path through which a fluid flows, where the separator body includes: a fluid inlet part having a space into which the fluid is introduced; a reaction region configured to receive the fluid; and a diffusion part which is provided between the fluid inlet part and the reaction region, where the porous structure is stacked on one surface of the reaction region, and the number of pores per unit volume of the porous structure varies in an inlet region.

Abstract: A fuel cell includes a separator. A constant amount of air is supplied to the fuel cell irrespective of positions within an air channel, and thus, degradation of the fuel cell is prevented. The separator includes a separator body and a porous structure which has a plurality of pores defined therein to provide a path through which a fluid flows, where the separator body includes: a fluid inlet part having a space into which the fluid is introduced; a reaction region configured to receive the fluid; and a diffusion part which is provided between the fluid inlet part and the reaction region, where the porous structure is stacked on one surface of the reaction region, and the number of pores per unit volume of the porous structure varies in an inlet region.

Abstract: A fuel cell includes a separator. A constant amount of air is supplied to the fuel cell irrespective of positions within an air channel, and thus, degradation of the fuel cell is prevented. The separator includes a separator body and a porous structure which has a plurality of pores defined therein to provide a path through which a fluid flows, where the separator body includes: a fluid inlet part having a space into which the fluid is introduced; a reaction region configured to receive the fluid; and a diffusion part which is provided between the fluid inlet part and the reaction region, where the porous structure is stacked on one surface of the reaction region, and the number of pores per unit volume of the porous structure varies in an inlet region.

Abstract: Disclosed is a fuel cell control system including: a fuel cell supplied with each of hydrogen and oxygen and configured to generate electric power by means of a chemical reaction therein; a cooling system having a heat-exchange device capable of exchanging heat with external air, the cooling system being configured such that cooling water circulates therein and exchanges heat with the fuel cell; a temperature sensing unit configured to sense a fuel cell temperature or a cooling water temperature in the cooling system; and a cooling control unit configured to control the cooling system so as to additionally cool the fuel cell when the fuel cell stops generating electric power, if the fuel cell temperature or the cooling water temperature sensed by the temperature sensing unit while the fuel cell generates electric power is equal to or higher than a preconfigured performance degradation temperature.

Abstract: A method of controlling the driving of a fuel cell system includes: determining whether the fuel cell system enters idle stop in which air supply to the fuel cell stack stops; dropping a DC-link terminal voltage controlled by a DC-DC converter up to a first set voltage by controlling an operation of the DC-DC converter connected to a DC-link terminal outputting generation power of the fuel cell stack at the time of entering the idle stop; and dropping a voltage of the fuel cell stack to reduce an oxide of platinum which is a catalyst of a fuel cell by allowing the anode exhaust gas to flow backward into a cathode of the fuel cell stack by performing the hydrogen purge in an idle stop state of opening the hydrogen purge valve after the voltage of the DC-link terminal drops.

Abstract: A method of controlling the driving of a fuel cell system includes: determining whether the fuel cell system enters idle stop in which air supply to the fuel cell stack stops; dropping a DC-link terminal voltage controlled by a DC-DC converter up to a first set voltage by controlling an operation of the DC-DC converter connected to a DC-link terminal outputting generation power of the fuel cell stack at the time of entering the idle stop; and dropping a voltage of the fuel cell stack to reduce an oxide of platinum which is a catalyst of a fuel cell by allowing the anode exhaust gas to flow backward into a cathode of the fuel cell stack by performing the hydrogen purge in an idle stop state of opening the hydrogen purge valve after the voltage of the DC-link terminal drops.

Abstract: A solar battery module according to an embodiment comprises: a support substrate; a plurality of solar battery cells arranged on the support substrate; and at least one bus bar electrically connected with the solar battery cells, wherein the support substrate includes at least two cut regions formed at corner regions thereof and the bus bar is extended to the rear side of the supporting substrate from the front side of the supporting substrate through the cut regions.

Abstract: A mobile terminal including a display unit; a wireless communication unit configured to communicate with at least one external device via a wireless network; and a controller configured to: execute a first message conversation with the at least one external terminal while executing a video communication with the at least one external terminal, and store an image of the video communication in response to termination of the first message conversation.

Abstract: A system and method of controlling fuel cell system is provided that simultaneously drains condensation and purges hydrogen via single valve. In particular, condensate water is drained by opening a drain-purge valve at a point in time at which a production amount of the condensate water exceeds a capacity of a water trap. An opening time of the drain-purge valve is then determined depending on a hydrogen concentration of an anode side and a target hydrogen concentration after the draining the condensate water. Hydrogen is then purged by maintaining the drain-purge valve in a state in which it is opened for the determined opening time.

Abstract: A solar battery module according to an embodiment comprises: a support substrate; a plurality of solar battery cells arranged on the support substrate; and at least one bus bar electrically connected with the solar battery cells, wherein the support substrate includes at least two cut regions formed at corner regions thereof and the bus bar is extended to the rear side of the supporting substrate from the front side of the supporting substrate through the cut regions.

Abstract: Disclosed is a motor power simulating apparatus for fuel cell power module evaluation that accurately reflects real world characteristics of a fuel cell vehicle. More particularly, the power simulating apparatus disclosed herein includes a fuel cell power module, a ripple current generator, and an electronic load device, the ripple current generator connected to the fuel cell power module and the electronic load device to accurately simulate power output from a fuel cell of a fuel cell vehicle under real world conditions.

Abstract: A mobile terminal including a display unit; a wireless communication unit configured to communicate with at least one external device via a wireless network; and a controller configured to: execute a first message conversation with the at least one external terminal while executing a video communication with the at least one external terminal, and store an image of the video communication in response to termination of the first message conversation.

Abstract: Disclosed are a method and an apparatus for adjusting a partial pressure of oxygen that is supplied to a fuel cell system. The oxygen partial pressure may be adjusted by primarily increasing an SR of air and by secondarily increasing a closing ratio of an opening and closing valve when a concentration of oxygen in the air is detected to be reduced. The oxygen partial pressure adjusting device of a fuel cell system includes: an air supply; a fuel supply; an oxygen sensor that is installed in an air supply line and detect a concentration of oxygen; an opening and closing valve and adjust an air supply pressure; and a controller that adjusts a partial pressure of oxygen using the opening and closing valve and a concentration of oxygen that is detected by the oxygen sensor.

Abstract: A terminal and method of having conversation using instant messaging service therein. The terminals displays a message conversation list including at least one message conversation item. Each of the at least one message conversation item represents a corresponding previous message conversation with a corresponding external device. The terminal displays, in response to a first command of selecting a specific one of the at least message conversation item in the message conversation list, at least one received or transmitted message. The at least one received or transmitted message is displayed together with an incomplete file transceiving indicator when a file transceiving was incompletely terminated during a specific previous message conversation corresponding to the specific message conversation item. The terminal resumes, in response to a second command of selecting a file transceiving option displayed together with the at least one received or transmitted message on the display unit, the file transceiving.

Abstract: A system and method of controlling fuel cell system is provided that simultaneously drains condensation and purges hydrogen via single valve. In particular, condensate water is drained by opening a drain-purge valve at a point in time at which a production amount of the condensate water exceeds a capacity of a water trap. An opening time of the drain-purge valve is then determined depending on a hydrogen concentration of an anode side and a target hydrogen concentration after the draining the condensate water. Hydrogen is then purged by maintaining the drain-purge valve in a state in which it is opened for the determined opening time.

Abstract: A method and an apparatus for supporting a discontinuous reception (DRX) operation in a Node B in a mobile communication system are provided. The method includes defining a second System Frame Number (SFN) where one cycle of a first SFN corresponds to one bit, transmitting information on the second SFN to a User Equipment (UE), determining a second SFN which is used to transmit a paging signal to the UE, determining a first SFN which is used to transmit the paging signal in the determined second SFN, and transmitting the paging signal to the UE at the determined first SFN.