Abstract: The present invention provides metformin butyric acid salt, a method of preparing the same, and pharmaceutical compositions and combinations containing the same. The metformin butyric acid salt according to the present invention has an excellent pharmacological effect as compared with metformin hydrochloride and is capable of achieving a therapeutic purpose by administering an amount less than metformin hydrochloride. Furthermore, the metformin butyric acid salt has excellent physicochemical properties, such as solubility, stability, hygroscopicity and adsorption preventing property, in processibility of formulations and thereby is capable of being usefully utilized as a pharmaceutically acceptable salt of the metformin.

Abstract: Provided are a high speed and low power fixed-point multiplier and method thereof. The multiplier includes: a partial product calculation unit for dividing input data into a plurality of bit groups, each bit group having a predetermined number of bits, generating partial products by independently multiplying a fixed coefficient for each bit group, and summing partial products included in a corresponding bit group, to thereby generate a summed partial products; and an adding unit for adding the summed partial products of each bit group generated from the partial product calculation unit.

Abstract: The inventive imidazopyridine derivative can be used in a pharmaceutical composition for preventing or treating diseases such as diabetes, obesity, dementia, cancer, and inflammation, since it can efficiently inhibit the activities of several protein kinases including glycogen synthase kinase-3 (GSK-3), aurora kinase, extracellular signal-regulated kinase (ERK), protein kinase B (AKT), and the likes, to control signal transductions thereof.

Abstract: Provided are a high speed and low power fixed-point multiplier and method thereof. The multiplier includes: a partial product calculation unit for dividing input data into a plurality of bit groups, each bit group having a predetermined number of bits, generating partial products by independently multiplying a fixed coefficient for each bit group, and summing partial products included in a corresponding bit group, to thereby generate a summed partial products; and an adding unit for adding the summed partial products of each bit group generated from the partial product calculation unit.