Abstract:
A compatible circuit and method for 4- and 5-pole earphones and a portable device are disclosed. The compatible circuit and method alter the path of audio signals, using switches, according to control signals, so that the 4-pole earphone can be used in a portable device designed primarily for a 5-pole earphone. The apparatus and method include determining the type of earphone, altering the audio signal path according to the type of earphone, and transmitting the audio signal to the earphone.
Abstract:
The present invention relates to beta-glucosidase that is mutated to have enhanced activity, and a method for producing bioethanol using the same. More particularly, the present invention relates to a polynucleotide encoding beta-glucosidase that is mutated to have enhanced activity, beta-glucosidase expressed from the polynucleotide, an expression vector including the polynucleotide, a transformant that is transformed with the expression vector, a method for producing the mutated beta-glucosidase using the transformant, and a method for producing bioethanol using the transformant. The mutant beta-glucosidase of the present invention increases production of glucose much more than the conventional beta-glucosidase, and thus it can be widely used for economic production of bioethanol.
Abstract:
The present invention relates to a method for producing hEGF (human epidermal growth factor) which has the same activity as the wild form, in high concentration and with a high degree of purity. More specifically, the invention relates to an hEGF expression vector comprising a nucleic acid sequence coding for the polypeptide of sequence number 14; a host cell in which the expression vector has been genetically transformed; and a method for producing hEGF, comprising a step in which the expression vector is created and is genetically transformed in yeast from which the KEX1 gene is lacking. Using the method of the present invention, it is possible to produce a large volume of human derived EGF which has the same size and activity as human derived EGF, and this EGF can be used in various ways such as in medicine and cosmetics.
Abstract:
The present invention relates to a composition comprising an extract of Pseudolysimachion genus plant, and the catalpol derivatives isolated therefrom having anti-inflammatory, anti-allergic and anti-asthmatic activity. The extract of Pseudolysimachion genus plant and the catalpol derivatives isolated therefrom shows potent suppressing effect on elevated IgE, IL-4 and IL-13 levels and eosinophilia in the plasma and BALF, and mucus overproduction in the lung tissues in an OVA-induced asthmatic mouse model. Therefore, it can be used as the therapeutics or functional health food for treating and preventing inflammatory, allergic and asthmatic disease.
Abstract:
A compatible circuit and method for 4- and 5-pole earphones and a portable device are disclosed. The compatible circuit and method alter the path of audio signals, using switches, according to control signals, so that the 4-pole earphone can be used in a portable device designed primarily for a 5-pole earphone. The apparatus and method include determining the type of earphone, altering the audio signal path according to the type of earphone, and transmitting the audio signal to the earphone.
Abstract:
Provided is a 4-transistor CMOS image in which a driving condition or a pixel structure is changed so that a transfer transistor in a pixel operates in a pinch-off condition during reset and transfer operations in order to reduce dark current and fixed-pattern noise caused by a change in an operation condition of the transfer transistor and inter-pixel characteristic discrepancy. The image sensor includes a photosensitive pixel including a transfer transistor for transferring photon-induced charges created in a photodiode; and a voltage control unit for controlling a turn-on voltage applied to a gate of the transfer transistor to be lower than a floating diffusion node voltage plus the threshold voltage of the transfer transistor during a partial or entire section of a turn-on section of the transfer transistor such that the transfer transistor operates in a pseudo pinch-off mode.
Abstract:
Provided is a 4-transistor CMOS image in which a driving condition or a pixel structure is changed so that a transfer transistor in a pixel operates in a pinch-off condition during reset and transfer operations in order to reduce dark current and fixed-pattern noise caused by a change in an operation condition of the transfer transistor and inter-pixel characteristic discrepancy. The image sensor includes a photosensitive pixel including a transfer transistor for transferring photon-induced charges created in a photodiode; and a voltage control unit for controlling a turn-on voltage applied to a gate of the transfer transistor to be lower than a floating diffusion node voltage plus the threshold voltage of the transfer transistor during a partial or entire section of a turn-on section of the transfer transistor such that the transfer transistor operates in a pseudo pinch-off mode.
Abstract:
Provided is a 4-transistor CMOS image in which a driving condition or a pixel structure is changed so that a transfer transistor in a pixel operates in a pinch-off condition during reset and transfer operations in order to reduce dark current and fixed-pattern noise caused by a change in an operation condition of the transfer transistor and inter-pixel characteristic discrepancy. The image sensor includes a photosensitive pixel including a transfer transistor for transferring photon-induced charges created in a photodiode; and a voltage control unit for controlling a turn-on voltage applied to a gate of the transfer transistor to be lower than a floating diffusion node voltage plus the threshold voltage of the transfer transistor during a partial or entire section of a turn-on section of the transfer transistor such that the transfer transistor operates in a pseudo pinch-off mode.
Abstract:
The present invention relates to a composition comprising an extract of Tiarella polyphylla, and tiarellic acid isolated therefrom having anti-inflammatory, anti-allergic and anti-asthmatic activity. The extract of Tiarella polyphylla and the tiarellic acid isolated therefrom shows the inhibitory effect on the LTC4 release in vitro test and the suppressive effect on the IgE level and the cytokine (IL-4, IL-5 and IL-13) production, airway hyperresponsiveness, and leukocyte infiltration in OVA-induced asthmatic mice. Therefore, it can be used as the therapeutics or functional health food for treating and preventing inflammatory, allergic and asthmatic disease.
Abstract:
The present invention relates to a composition comprising an extract of Pseudolysimachion genus plant, and the catalpol derivatives isolated therefrom having anti-inflammatory, anti-allergic and anti-asthmatic activity. The extract of Pseudolysimachion genus plant and the catalpol derivatives isolated therefrom shows potent suppressing effect on elevated IgE, IL-4 and IL-13 levels and eosinophilia in the plasma and BALF, and mucus overproduction in the lung tissues in an OVA-induced asthmatic mouse model. Therefore, it can be used as the therapeutics or functional health food for treating and preventing inflammatory, allergic and asthmatic disease.