Abstract: A fuel cell system and a method of controlling the system are provided. The fuel cell system includes: a fuel cell having a plurality of cells to generate power through a reaction between hydrogen supplied to an anode space and oxygen supplied to a cathode space; a power storage device to be charged with power generated by the fuel cell or discharged to supply power; and a controller. The controller recirculates hydrogen, diffused from the anode space to the cathode space, into the anode space by supplying power charged in the power storage device to the fuel cell when the power generation of the fuel cell is stopped. The controller is configured to control whether to supply the power to the fuel cell based on a pressure measured in the anode space and voltages of the cells that constitute the fuel cell.

Abstract: The present invention relates to a complex elastic unit for maximizing space utilization and elastic energy storage with a limited space and a variable gravity compensation module with the complex elastic unit and a curved lever, more particularly to variable gravity compensation apparatus with a curved lever, characterized by comprising: a housing; an interlocking cam which is installed to the housing, being rotated by a load; a curved lever which is rotated interlocked with the rotation of the interlocking cam and which provides elasticity to rotate the interlocking cam toward an initial position; an adjustment unit which adjusts a position of a pivot which is a center of rotation of the curved lever, allowing moving the pivot according to strength of load; and an elastic unit which is equipped within the housing to provide elasticity to the curved lever, wherein a driving end which is adhered to the interlocking cam is formed on one end of the curved lever with respect to the pivot, a driven end which is a

Abstract: The present disclosure relates to an elastic unit with adjustable elasticity and elastic modulus and to an operation method thereof. In particular, the present disclosure relates to an elastic unit with adjustable elasticity and elastic modulus, which comprises: an elastic element having a plurality of division areas longitudinally; and elasticity adjustment modules that are laid out in each of the division areas of the elastic element and activate or inactivate the elastic element partially depending on the division areas to adjust an elasticity and an elastic modulus of the elastic element.

Abstract: The present invention provides a thiophene carboxamide compound of the following General Formula (I), which is a novel fluorine-substituted biphenyl carboxamide-based compound, and provides a useful compound, as an agricultural and horticultural plant disease control agent, exhibiting an excellent control effect at a low dose. wherein, R, R1, R2, R3, Xm, and Y are each as defined in the specification.

Abstract: The present invention relates to a complex elastic unit for maximizing space utilization and elastic energy storage with a limited space and a variable gravity compensation module with the complex elastic unit and a curved lever, more particularly to variable gravity compensation apparatus with a curved lever, characterized by comprising: a housing; an interlocking cam which is installed to the housing, being rotated by a load; a curved lever which is rotated interlocked with the rotation of the interlocking cam and which provides elasticity to rotate the interlocking cam toward an initial position; an adjustment unit which adjusts a position of a pivot which is a center of rotation of the curved lever, allowing moving the pivot according to strength of load; and an elastic unit which is equipped within the housing to provide elasticity to the curved lever, wherein a driving end which is adhered to the interlocking cam is formed on one end of the curved lever with respect to the pivot, a driven end which is a

Abstract: The present invention provides a thiophene carboxamide compound of the following General Formula (I), which is a novel fluorine-substituted biphenyl carboxamide-based compound, and provides a useful compound, as an agricultural and horticultural plant disease control agent, exhibiting an excellent control effect at a low dose. wherein, R, R1, R2, R3, Xm, and Y are each as defined in the specification.

Abstract: A dual camera module is provided to independently control the two photographing lenses located in a magnetic field formed by the same magnetic field generating source. The dual camera module includes: a first movable part including a first lens and configured to move in parallel to an optical axis of the first lens; a second movable part including a second lens and configured to move in parallel to an optical axis of the second lens; and a common magnetic field generating part configured to generate a magnetic field around the first movable part and the second movable part to generate electromagnetic forces in the first movable part and the second movable part, respectively, so that the first movable part and the second movable part move independently.

Abstract: Disclosed herein is a catalyst for producing biodiesel, including a carrier having water resistance and an active component supported on the carrier and used in a hydrotreating reaction or a decarboxylation reaction. Since the catalyst for producing biodiesel includes a carrier having strong water resistance, the deactivation of the catalyst due to the water produced through a process of producing HBD can be prevented, thus remarkably improving the long term stability of a catalyst.

Abstract: A pyridine-based compound containing an isoxazoline ring represented by Formula 1 or an agrochemically acceptable salt thereof can be used as a herbicide. A method of preparing the pyridine-based compound containing an isoxazoline ring represented by Formula 1 includes reacting a compound represented by Formula 2 with a compound represented by Formula 3.

Abstract: Provided is a haptic device linked with an augmented reality or virtual reality implementation device, and more particularly, to a haptic device linked with an augmented reality or virtual reality implementation device, the device being capable of causing an environmental change in augmented reality or virtual reality through a specific operation and being capable of providing a vibration signal to a user according to an environmental change in the augmented reality or virtual reality. The haptic device linked with the augmented reality or virtual reality implementation device can include a main body held by a user; a sensor unit provided in the main body and sensing the position, posture, or operation of the main body; a communication unit, provided in the main body, for communicating with the augmented reality or virtual reality implementation device; and a vibration unit provided in the main body and vibrating the main body.

Abstract: Provided is a camera actuator and a camera module for a mobile terminal, which move a lens along an optical axis direction, and more particularly, to a camera actuator and a camera module for a mobile terminal, in which even when a support spring and a driving source configured to generate driving force are located on one side of a lens, when the lens vertically moves along an optical axis direction, a displacement by which a lens center is moved in a horizontal direction from an initial position thereof is minimized, so that the lens center is located on a line of an initial optical axis, and which include an elastic part including a first elastic part connected to a fixed part to extend in a first direction, and a second elastic part bent from an extending end of the first elastic part, extending in a second direction that is opposite to the first direction, and having an extending end connected to a movable part.

Abstract: Specific embodiments of the present invention provide a hydrocracking process for converting low value-added heavy hydrocarbon distillates into high value-added hydrocarbon distillates using a supercritical solvent as a medium.

Abstract: Disclosed herein is a catalyst for producing biodiesel, including a carrier having water resistance and an active component supported on the carrier and used in a hydrotreating reaction or a decarboxylation reaction. Since the catalyst for producing biodiesel includes a carrier having strong water resistance, the deactivation of the catalyst due to the water produced through a process of producing HBD can be prevented, thus remarkably improving the long term stability of a catalyst.

Abstract: Provided are an ortho-substituted phenylisoxazoline-based compound with 2,6-difluorobenzyloxymethyl represented by Formula 1, or a racemate or enantiomer thereof, a herbicide including the ortho-substituted phenylisoxazoline-based compound, or the racemate or enantiomer thereof as an active ingredient, and a method of selectively controlling grass weed comprising treating with the ortho-substituted phenylisoxazoline-based compound, or the racemate or enantiomer thereof before or after the grass weed emerges.

Abstract: Provided is an industrial method for the preparation of [5-{(2,6-difluorobenzyloxy)methyl}-4,5-dihydro-5-methyl-3-(3-methylthiophene-2-yl)-isoxazole](common name: methiozolin) represented by Formula 1 that is a herbicidal substance in high-purity.

Abstract: A chimney tray for a reactor, wherein a gas reactant and a liquid reactant are mixed in chimneys to improve the dispersion performance of the liquid reactant on the catalyst bed of a fixed bed reactor thereby increasing the contact efficiency between the liquid reactant and the catalyst depending on the uniformity of flow of the liquid reactant, resulting in increased reaction efficiency, and which includes a tray having a plurality of through-holes, and a plurality of chimneys perpendicularly inserted into the through-holes of the tray and having one or more outlets penetrating there through and facing each other, wherein each of the plurality of chimneys includes a conical lower end which is formed such that it extends from the lower surface of the tray to make an angle of 10˜40° with respect to the direction of the normal line of the tray.

Abstract: A photography device with anti-shake function for sensing camera shake and moving a lens toward a direction to correct the camera shake when photographing an object so that the object may be clearly photographed. A coil and a magnet are included in the invention, and the coil moves in a direction perpendicular to the optical-axis of the lens as a result of magnetic fields generated by the magnet and the coil when electric power is applied to the coil.

Abstract: Provided is an industrial method for the preparation of [5-{(2,6-difluorobenzyloxy)methyl}-4,5-dihydro-5-methyl-3-(3-methylthiophene-2-yl)-isoxazole](common name: methiozolin) represented by Formula 1 that is a herbicidal substance in high-purity.

Abstract: Disclosed is a method of preparing alkyl butyrate, which comprises: (a) producing a fermented liquid containing butyrate salt through a fermentation process using butyric acid-producing strains; (b) obtaining an extracted liquid containing butyric acid from a continuous extracting apparatus using an extraction solvent, after converting the butyrate salt into butyric acid by adding an inorganic acid except for carbonic acid or carbon dioxide into the fermented liquid, wherein the continuous extracting apparatus includes a plurality of extraction plates which are installed inside an extraction column and perform a reciprocating motion vertically, and the broth and the extraction solvent are supplied to upper and lower portions of the column, respectively; and (c) reacting the extracted liquid and alcohol having a carbon number of 4 or less or a mixture thereof in an esterification reactor to convert a resultant product into alkyl butyrate.

Abstract: A photography device with anti-shake function for sensing camera shake and moving a lens toward a direction to correct the camera shake when photographing an object so that the object may be clearly photographed. A coil and a magnet are included in the invention, and the coil moves in a direction perpendicular to the optical-axis of the lens as a result of magnetic fields generated by the magnet and the coil when electric power is applied to the coil.