Abstract: Provided are a metal oxide-carbon nanomaterial composite, a method of preparing the metal oxide-carbon nanomaterial composite, a catalyst, a method of preparing the catalyst, and a catalyst layer that includes the catalyst and that is used for fuel cell electrodes. The metal oxide-carbon nanomaterial composite includes a metal oxide particle having a specific surface area of 5 square meters per gram (m2/g) or less, and a carbon nanomaterial formed on a surface of the metal oxide particle. The catalyst includes a metal oxide-carbon nanomaterial composite in which a carbon nanomaterial is formed on a metal oxide particle, and an active metal particle formed on a surface of the carbon nanomaterial.

Abstract: A heat treatment method for a membrane electrode assembly (MEA) of a fuel cell includes: placing a power supply plate on a surface of the MEA or on a surface of an assembly of the MEA and a gas diffusion layer (GDL); and performing heat treatment on a surface or interior of the power supply plate by applying power to the power supply plate.

Abstract: To provide a reactor to improve evenness in the thickness of shell metals coated on the surface of core particles by increasing area sizes in the reactor chamber to control electric potentials, the present invention is configured to comprise a top surface able to move up and down while serving as a working electrode, a wall serving as a working electrode, a bottom surface, a standard electrode, a power supplying part and a solution injecting part, wherein the top surface can move up and down automatically by an electric motor or manually. Also, the top surface is configured to be suitable for the interior diameter of the reactor chamber, for solutions inside the reactor chamber not to leak from the top surface or from the crevice between the top surface and the wall of the reactor chamber. The bottom surface of the reactor chamber may comprise an impeller or an ultrasonic wave diffuser to bring about even diffusion in the reactor chamber.

Abstract: A display apparatus is provided. The display apparatus includes: a display configured to display a virtual keyboard; an inputter configured to receive a stroke input on a key on the virtual keyboard; and a controller configured to display a character which corresponds to the key in an input window in response to the stroke input being received, and configured to perform a control operation to suggest at least one character that is likely to follow a character which corresponds to the key and display the at least one suggested character. The at least one suggested character is displayed so as not to overlap a character of a basic key on the virtual keyboard.

Abstract: An aptamer for specifically detecting patulin and a method for detecting patulin using the same. The aptamer for specifically detecting patulin is a single-stranded DNA aptamer serving as a bioreceptor capable of effectively detecting patulin. Since such an aptamer for specifically detecting patulin is capable of specifically binding to patulin which is a mycotoxin having a simple chemical structure and a low molecular weight, it can be effectively employed as a bioreceptor in various bioassays for specifically detecting patulin. The aptamer for specifically detecting patulin can achieve more effective detection of patulin in apples or apple juice.

Abstract: A character correcting method of a display apparatus includes displaying a sentence including at least one word in a character input window; displaying, if one of the at least one word is selected, a first user interface (UI) in which the at least one selected word is displayed by a character unit; and, displaying, if one of a plurality of characters displayed in the first UI is selected, a second UI around the selected character, the second UI is configured to edit the selected character.

Abstract: A character correcting method of a display apparatus includes displaying a sentence including at least two words in a character input window; displaying, if one of the at least two words is selected, a first user interface (UI) in which the at least one selected word is displayed by a character unit; and, displaying, if one of a plurality of characters displayed in the first UI is selected, a second UI around the selected character, the second UI is configured to edit the selected character.

Abstract: Provided are a metal oxide-carbon nanomaterial composite, a method of preparing the metal oxide-carbon nanomaterial composite, a catalyst, a method of preparing the catalyst, and a catalyst layer that includes the catalyst and that is used for fuel cell electrodes. The metal oxide-carbon nanomaterial composite includes a metal oxide particle having a specific surface area of 5 square meters per gram (m2/g) or less, and a carbon nanomaterial formed on a surface of the metal oxide particle. The catalyst includes a metal oxide-carbon nanomaterial composite in which a carbon nanomaterial is formed on a metal oxide particle, and an active metal particle formed on a surface of the carbon nanomaterial.

Abstract: Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information.

Abstract: Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information.

Abstract: Provided are a method for preparing a catalyst layer by an in-situ sol-gel reaction of tetraethoxysilane, and a fuel cell including the catalyst layer prepared thereby. Addition of silica mitigates specific adsorption of sulfonate groups contained in a Nafion ionomer on a Pt catalyst layer in a high-voltage region where the role of a catalyst predominates, resulting in improvement of ORR performance.

Abstract: Provided are a display apparatus controlled through an input unit including a four-direction key and a method for controlling the same. The display apparatus includes an input unit including a four-direction key and configured to receive a user command, a display unit configured to display a four-direction user interface (UI) including UI elements corresponding to the four-direction key, and a controller configured to, in response to one of the four-direction key being selected, control the display unit to display a low UI element included in a UI element corresponding to the selected key. Accordingly, a user intuitively accesses content that the user wants to enter without learning of a new interface.

Abstract: An example display device and an example method for providing recommended characters on the display device involve displaying a character input UI including a plurality of character items, and, when one of the plurality of character items is selected, providing a recommended character item with respect to a selected character item, according to different methods depending on a character input mode.

Abstract: A display device and a method for controlling the same for intuitively informing a user of motion of an input device when a cursor is not displayed by providing visual feedback in a region of a display item corresponding to the motion of the input device.

Abstract: There is provided a voltage control circuit that is applicable to a LED device, a power supply or the like. The voltage control circuit includes: a voltage dividing unit dividing a supply voltage into a first voltage and a second voltage different from each other; a shunt regulator adjusting the first voltage according to the second voltage; and an output circuit unit outputting the voltage regulated by the shunt regulator.

Abstract: A manufacturing system and method of an membrane electrode assembly (MEA) for a fuel cell is provided which increases performance and durability of an MEA and ensures productivity of the MEA therein. In particular, electrodes and an electrolyte membrane are bonded together and the membrane electrode assembly manufactured in the bonding process is pressed at a predetermined temperature.

Abstract: There are provided a light driving apparatus capable of being commonly used in various types of dimmers, and a driving method therefor. The light driving apparatus includes: a driving unit supplying driving power to a light emitting device according to controlling to drive the light emitting device; and a general-purpose dimming controlling unit controlling dimming of the light emitting device by converting a range of a brightness control signal of an external dimmer into a first voltage range according to a preset ratio to control the supply of power from the driving unit.

Abstract: Provided is a power converter, which includes: a power supply unit provided with a first wiring and a second wiring and configured to apply a driving voltage to a load, the power supply unit being configured to adjust a magnitude of the driving voltage in response to a turn ratio of the first wiring to the second wiring; and control unit configured to output a control signal for control the turn ratio of the first wiring to the second wiring based on the magnitude of the driving voltage.

Abstract: A display apparatus and a method for inputting characters thereof are provided. The display apparatus includes: a display unit which displays a character input UI including a plurality of character items, each character item comprising a border and a character located in the border, an input unit which receives a user command to select one of the plurality of character items, and, a controller which, if a first character item is selected from among the plurality of character items through the input unit, controls the display unit to display at least one recommended character item associated with the first character to partially overlap with character items adjacent to the first character item. Accordingly, a user can input characters more easily using the character input UI.

Abstract: Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information.