Abstract:
The present invention relates to a composition for improving inflammatory disease, and more specifically to a composition for improving inflammatory disease able to improve inflammatory reactions and the barrier function of epithelial tissue such as the skin, to enhance aging resistance and skin elasticity and to prevent or treat aging. The present invention makes it possible to control inflammatory reactions by modulating the expression and modulating the activity of ABH antigens, and thus the composition of the present invention can be employed as a development marker for therapeutic agents designed to soothe or treat or help in the treatment of disease caused by inflammatory reaction in body tissue and notably the skin expressed by ABH antigens, and can be used in the development of external preparations and cosmetics containing external preparations designed for the purposes such as restoration of normal function and moisturization, wrinkle enhancement, whitening and elasticity recovery in skin through modulation of differentiation of keratinocytes and the skin barrier function.
Abstract:
A correlated double sampling (CDS) circuit is provided. The CDS circuit is configured to perform a CDS on a reset signal and an image signal during a CDS phase respectively. The CDS circuit includes a sampling circuit configured to output a difference between a correlated double sampled reset signal and a correlated double sampled image signal, and a feedback unit configured to feedback the difference output from the sampling circuit during a PGA phase to an input of the sampling circuit.
Abstract:
The present invention provides a fuel cell system, which reduces the temperature of exhaust gas discharged from a fuel cell stack to a humidifier to increase the humidity thereof when the fuel cell stack operates at high temperature and high power, and thus improves the humidification performance for air as an oxidant in the humidifier and improves the performance of the fuel cell stack.For this purpose, the present invention provides a fuel cell system in which an intercooler is installed in an exhaust gas pipe, which connects a cathode outlet of the fuel cell stack and the humidifier, to cool the exhaust gas as a water supply source of the humidifier such that the intercooler reduces the temperature of the exhaust gas and, at the same time, increase the humidity thereof, thus improving humidification performance for air as an oxidant in the humidifier.
Abstract:
An analog-digital converter (ADC) includes a correlated double sampling (CDS) circuit configured to perform CDS on each of a reset signal and an image signal output from a pixel to generate a correlated double sampled reset signal and a correlated double sampled image signal, respectively. A delta sigma (ΔΣ) ADC, also included in the ADC, is configured to output a difference between a first digital code that is generated by performing ΔΣ analog-digital conversion on the correlated double sampled reset signal and a second digital code that is generated by performing ΔΣ analog-digital conversion on the correlated double sampled image signal.
Abstract:
A separator for a fuel cell includes a main separator and a sub separator. A plurality of intake manifolds and exhaust manifolds are perforated on both end portions of the main separator and the sub separator. A plurality of channels are formed on an upper surface of the main separator so that fuel is supplied through the different intake manifolds and is exhausted through the different exhaust manifolds. Auxiliary channels are formed on a lower surface of the main separator and an upper surface and a lower surface of the sub separator so as to connect the intake manifolds and the exhaust manifolds to the channels. A connecting channel is formed on a lower surface of the main separator so as to communicate with the channels, and connect the channels and the auxiliary channels.
Abstract:
The present invention provides a pulverizing screw, a pulverizing casing and a pulverizer having the same. The pulverizing screw includes a rotating shaft and a drive blade which extends from the rotating shaft in a spiral shape. The drive blade rotates in the pulverizing casing in such a manner as to maintain a predetermined distance between the drive blade and the inner surface of the pulverizing casing to prevent the drive blade from being impeded by the inner surface of the pulverizing casing. The drive blade extends from a first end of the rotating shaft in a spiral shape surrounding the rotating shaft in a clockwise or counterclockwise direction and is connected to a second end of the rotating shaft. The pulverizing casing comprises a spherical body having a space therein. The pulverizing screw is installed in the spherical body so as to be rotatable.
Abstract:
A wavelength selective switch is provided. The wavelength selective switch according to the present invention comprises: an optical demultiplexer for separating an incident light with a plurality of wavelengths multiplexed into a plurality of wavelength lights and outputting the separated wavelength lights; an optical amplifier for selectively amplifying or absorbing the separated wavelength lights; an optical deflector for selectively deflecting outputs of the optical amplifier; and an optical multiplexer for multiplexing the selectively deflected lights and outputting the multiplexed lights.
Abstract:
A separator for a fuel cell includes a main separator and a sub separator. A plurality of intake manifolds and exhaust manifolds are perforated on both end portions of the main separator and the sub separator. A plurality of channels are formed on an upper surface of the main separator so that fuel is supplied through the different intake manifolds and is exhausted through the different exhaust manifolds. Auxiliary channels are formed on a lower surface of the main separator and an upper surface and a lower surface of the sub separator so as to connect the intake manifolds and the exhaust manifolds to the channels. A connecting channel is formed on a lower surface of the main separator so as to communicate with the channels, and connect the channels and the auxiliary channels.
Abstract:
Disclosed is a device and method for controlling hydrogen concentration of a fuel cell system to maintain the concentration of hydrogen of an anode at a proper level in accordance with the concentration supplied to a fuel cell. More specifically, a hydrogen concentration measuring sensor is directly provided in a hydrogen storage device, the hydrogen concentration and the impurity concentration in an anode channel of the fuel cell system are estimated based on a measured hydrogen concentration, and when it is determined that the hydrogen concentration in the anode channel falls under a reference value at which the fuel cell system can be stably operated, purge control for discharging the gases (hydrogen and impurities) in the anode channel to the outside is performed, so that the hydrogen concentration in the anode channel of the fuel cell system can be maintained equal to or higher than the reference value.