Abstract: The disclosure relates to a display apparatus including a display, a user input unit, a communicator, and a processor. The processor may display a plurality of first items representing content in a first area on the screen, list and display a plurality of second items selected based on a first user input among the plurality of displayed first items in a second area on the screen different from the first area, change and display a list order of two or more second items selected based on a second user input among the plurality of second items displayed in the second area, and transmit a request to an external apparatus to perform predetermined functions in the list order of content corresponding to the plurality of second items changed in order in the second area.

Abstract: A method for removing residual water in a fuel cell stack includes: blocking, by an air compressor, air supply to a fuel cell stack upon shutting down of fuel cell; measuring a cell voltage of the fuel cell stack while the air supply is blocked; estimating an amount of residual water in the fuel cell stack based on the measured cell voltage of the fuel cell stack; and removing, by a driving controller, the residual water in the fuel cell stack by driving the air compressor based on the estimated amount of water.

Abstract: Provided is a method of controlling a sensorless motor for an air compressor. The method controls early driving of a sensorless motor for an air compressor, overcomes related-art problems, and improves control response. A position of a rotor of the motor, finally estimated by a sensorless control logic at a point in time at which the motor is determined to be in the stopped state, is determined to be an alignment target position. An alignment start position is determined from the alignment target position in accordance with a predetermined alignment offset angle. The position of the rotor of the motor is controlled to change from the determined alignment start position to the alignment target position.

Abstract: An operation control system and method of a fuel cell vehicle are provided. The system includes a fuel cell, an air supply device operated by a motor, to supply air to the fuel cell and a sensing unit that senses an abnormal operation of the air supply device. A calculation unit calculates a lower-limit voltage of the air supply device required for normal operation of the air supply device when the sensing unit senses abnormal operation of the air supply device. A controller then adjusts a voltage supplied to the air supply device based on the calculated lower-limit voltage.

Abstract: Disclosed herein is a multi-row ultrasonic probe of which a manufacturing failure rate can be decreased. The ultrasonic probe includes a piezoelectric layer configured to generate ultrasonic waves, a sound layer provided on a rear side of the piezoelectric layer, a flexible printed circuit board provided on a rear side of the sound layer, and a sound absorption layer configured to absorb the ultrasonic waves generated by the piezoelectric layer and propagating toward a rear surface of the ultrasonic probe, the sound absorption layer being provided on a rear surface of the flexible printed circuit board. The piezoelectric layer includes a kerf configured to divide the piezoelectric layer in a direction of elevation. The sound layer includes a funnel extending in a direction extending from a front side of the sound layer to the rear side of the sound layer to divide the sound layer.

Abstract: A flexible display device is disclosed. The flexible display device includes a first body, a second body, a flexible display, and a first cover. The second body performs reciprocating movement between a first position and a second position relative to the first body. The flexible display includes a first region, a first connected region, and a second connected region. When the second body is at the first position, the first cover covers the second connected region and forms a rear surface of the flexible display device. When switching between the first position and the second position is made, the user may hold the flexible display device in contact with the first region and the first cover.

Abstract: A method and an apparatus for processing a screen by using a device are provided. The method includes obtaining, at the second device, a display screen displayed on the first device and information related to the display screen according to a screen display request regarding the first device, determining, at the second device, an additional screen based on the display screen on the first device and the information related to the display screen, and displaying the additional screen near the display screen on the first device.

Abstract: A method of controlling a sensorless motor of an air compressor is provided to overcome the known problems of sensorless control methods and to improve control responsiveness. In various aspects of the present invention, a method of controlling a sensorless motor of an air compressor includes: performing a speed control for stopping a motor by a controller; determining a motor stopped state from an estimated motor speed while the speed control is performed by the controller; determining a rotor position estimated as a fixed position when the motor stopped state is determined by the controller; performing motor position control for moving the rotor position to the fixed position when the motor stopped state is determined; and starting sensorless control for driving the motor by setting the fixed position to an initial position when requesting a motor driving while the rotor position is maintained at the fixed position.

Abstract: A control apparatus of a vehicle can include: a controller configured to control an operation function of the vehicle; and a power supply unit configured to supply power to the controller or to cut off power supply thereto. The power supply unit can include a) a key hold circuit storing a key hold-on/off state of the key hold circuit corresponding to a key hold function of supplying power to the controller after the control apparatus shuts down and b) a power supply determiner determining whether to supply the power to the controller.

Abstract: A method of correcting a signal delay of a Hall sensor for an air compressor motor when the air compressor motor rotates at a high speed includes: a first step of calculating an offset angle ? from a voltage equation, to which a q-axis voltage and a d-axis voltage are applied, by performing zero current control when an inertia braking section occurs during an operation of the motor; a second step of calculating a reference offset angle ?offset of the Hall sensor and a delay time t by using an angular velocity ? at any two points in the inertia braking section by using the equation for calculating the offset angle ?; and a third step of calculating a corrected q-axis voltage and a corrected d-axis voltage through the zero current control corrected and comparing the corrected q-axis voltage and the corrected d-axis voltage with a reference error.

Abstract: A coating composition may include 5 wt % to 20 wt % of a caprolactone-modified hyperbranched polyester polyol, the caprolactone-modified hyperbranched polyester polyol obtained from polyhydric alcohol including caprolactone triol, 30 wt % to 50 wt % of a first acrylic resin, the first acrylic resin having a hydroxyl group, 15 wt % to 25 wt % of a second acrylic resin, the second acrylic resin having a hydroxyl group and having a glass transition temperature higher than that of the first acrylic resin, and an extra solvent.

Abstract: The present invention relates to an electrode active-material composition including, as a binder material for an electrode active material, a conductive polymer synthesized using a cellulose-based compound and/or a weakly acidic compound alone or in combination as a template, and a lithium-ion battery manufactured using the same, and particularly to PEDOT:CMC synthesized as a preferred active-material composition, and a lithium-ion battery manufactured using the same as a binder. The technique of the present invention is capable of improving the cycle characteristics, that is, the lifetime, of the lithium-ion battery including an anode active material made of a graphite component and/or a silicon component alone or in combination, along with various cathode active materials including a nickel-cobalt-manganese (NCM)-based active material, a nickel-cobalt-aluminum (NCA)-based active material, a lithium-cobalt oxide (LCO) active material, and other lithium containing materials.

Abstract: The disclosure relates to a display apparatus including a display, a user input unit, a communicator, and a processor. The processor may display a plurality of first items representing content in a first area on the screen, list and display a plurality of second items selected based on a first user input among the plurality of displayed first items in a second area on the screen different from the first area, change and display a list order of two or more second items selected based on a second user input among the plurality of second items displayed in the second area, and transmit a request to an external apparatus to perform predetermined functions in the list order of content corresponding to the plurality of second items changed in order in the second area.

Abstract: A method and an apparatus for processing a screen by using a device are provided. The method includes obtaining, at the second device, a display screen displayed on the first device and information related to the display screen according to a screen display request regarding the first device, determining, at the second device, an additional screen based on the display screen on the first device and the information related to the display screen, and displaying the additional screen near the display screen on the first device.

Abstract: Provided is a method of acquiring depth information of an object including acquiring first depth information of the object located at a first point in a common sensing region common to respective sensing regions of a plurality of sensors and first shape information of at least one view point, acquiring second shape information of the object at a second point when the object is located at the second point in a region excluding the common sensing region on the respective sensing regions of the plurality of sensors, and acquiring second depth information of the object at the second point based on a result of comparison between the first shape information of the at least one view point and the second shape information and the first depth information.

Abstract: An air supply control method and system for a fuel cell controlling a switching frequency of an inverter at which power consumption of the air compressor becomes minimal includes: calculating a revolution per minute (RPM) of a motor of an air compressor; calculating a switching frequency of an inverter of the motor of the air compressor at which power consumption becomes minimal based on the calculated RPM of the motor; and controlling the inverter with the calculated switching frequency.

Abstract: A method for estimating power consumption of a motor includes steps of: determining an error voltage for a terminal voltage of each of multiple phases of the motor, the terminal voltage being supplied from an inverter to the motor; generating a compensation terminal voltage for each of the multiple phases of the motor by applying the error voltage to a prediction value of the terminal voltage that is derived in a preset manner during operation of the motor; and calculating power consumption of the motor by using the compensation terminal voltage and a current value obtained by detecting a current that flows in each of the multiple phases of the motor.

Abstract: A control method of a motor rotation speed may include calculating a q-axis potential difference of a synchronous coordinate system for controlling a q-axis current of the synchronous coordinate system based on a target rotation speed of a motor and a measured rotation speed value of the speed sensor, calculating a voltage command of the synchronous coordinate system based on the calculated q-axis potential difference of the synchronous coordinate system, and controlling an inverter connected to the motor according to the calculated voltage command of the synchronous coordinate system.

Abstract: A motor drive control method is provided for controlling a speed of a motor such that a measured speed value of the motor follows a speed command value. The motor drive control method includes an on/off driving operation of driving a torque of the motor based on the speed command value in such a way that the torque of the motor is repeatedly turned on/off on preset cycle and duty. The motor drive control method and system can markedly enhance efficiency of a motor by reducing switching loss and current ripple loss of an inverter in a low-speed driving period of a high-speed motor.

Abstract: An electronic device, a method thereof, a non-transitory computer-readable recording medium, and a chipset are disclosed. The electronic device includes a sensor module including a plurality of sensor arrays for scanning a target object located in a predetermined vicinity of the electronic device; and a control module configured to determine a direction in which the target object is located, based on a first signal that the sensor module outputs with respect to the target object, and scan the target object located in the determined direction, wherein the sensor arrays are spaced apart from each other.