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 provides a pharmaceutical composition or a food composition comprising, as active ingredients, flavone-6-C-glucose derivatives or galenical extracts containing flavone-6-C-glucose derivatives. The composition of the present invention shows a functional effect of effectively treating or preventing cognitive dysfunction disorders such as delirium, dementia or amnesia, stroke, palsy, attention disorders, anxiety disorders or sleep disorders.

Abstract: The present invention provides a pharmaceutical composition or a food composition comprising, as active ingredients, flavone-6-C-glucose derivatives or galenical extracts containing flavone-6-C-glucose derivatives. The composition of the present invention shows a functional effect of effectively treating or preventing cognitive dysfunction disorders such as delirium, dementia or amnesia, stroke, palsy, attention disorders, anxiety disorders or sleep disorders.

Abstract: The present invention relates to a composition comprising the extract of Prunella vulgaris L for preventing and treating ADHD and the use thereof.

Abstract: A diesel particulate matter reduction system includes a diesel particulate filter (DPF), an electric power supply device, a heater, an air blower, and a control unit. The DPF is configured to capture particulate matter of exhaust gas. The heater is configured to be operated by electric power supplied by the electric power supply device to heat the DPF. The air blower is configured to be operated by electric power supplied by the electric power supply device and provides air to the DPF. The control unit controls operations of the heater and the air blower.

Abstract: This invention relates to a novel 2-hydroxypropionic acid derivative and its manufacturing method. Based on its mechanism to inhibit the CPT I, 2-hydroxypropionic acid derivative of this invention has blood glucose lowering effects so that the derivative may be effectively used as an antidiabetic agent having remarkable antidiabetic activity and fewer side effects.

Abstract: This invention relates to a novel oxirane carboxylic acid derivative and thereof manufacturing method. Based on thereof mechanism to inhibit the CPT I, oxirane carboxylic acid derivative of this invention has blood glucose lowering effects so that the derivative may be effectively used as an antidiabetic agent having remarkable antidiabetic activity and less side effects.