Abstract: The present invention provides an apparatus for selectively micro pattern replication using ultrasonic waves, the apparatus including: (1) a to-be-processed substrate scheduled to be replicated with a first pattern in a first area which is a part of a predetermined area; (2) a mold provided with a second pattern at least in an area corresponding to the predetermined area, on which the to-be-processed substrate is fixed; (3) a masking layer provided to be contacted with the to-be-processed substrate on a side opposite to a side facing the mold and including a masking area in an area corresponding to the first area; and (4) a tool horn for transferring ultrasonic vibration to the masking layer. If the tool horn transfers the ultrasonic vibration to the masking layer, the to-be-processed substrate is pressed to the mold.

Abstract: An RFID system using an M pulse amplitude modulation (M-PAM) or M quadrature amplitude modulation (M-QAM) scheme using a plurality of load-modulators, a plurality of antennas, and a communication method thereof are provided. The RFID system includes: an RFID tag; and a reader device communicating with the RFID device, wherein the RFID tag includes: N load-modulators an N antennas communicating with the reader device in any one scheme of M-pulse amplitude modulation (M-PAM) and M-quadrature amplitude modulation (M-QAM) in which modulation of an M level is performed and operated corresponding to the M level.

Abstract: The present disclosure provides polymer compounds binding with lipoamide produced by the reaction of the primary amine group of lipoamide with the carboxy group of polysaccharide compounds such as chondroitin sulfates, carboxymethyl celluloses, or hyaluronic acids; functional compounds such as peptides, proteins, growth factors; or drugs; or biocompatible polymers such as poly(ethylene oxide), poly(vinyl alcohol), or poly(vinyl pyrrolidone). The present disclosure also provides their synthesis methods, products of hydrogels and films using the same as and methods for manufacturing the products.

Abstract: Disclosed are a chitosan-chitosan-polyethylene oxide hydrogel formed via covalent bonding between chitosan derivatives crosslinked with an acrylate or methacrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof; a hyaluronic acid-hyaluronic acid-polyethylene oxide hydrogel formed via covalent bonding between hyaluronic acid derivatives crosslinked with an acrylate or methacrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof; and a chitosan-hyaluronic acid-polyethylene oxide hydrogel formed via covalent bonding between a chitosan derivative crosslinked with a (meth)acrylate functional group-containing substance as well as a hyaluronic acid derivative crosslinked with a (meth) acrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof.

Abstract: A vibration control apparatus using a water tank, which is installed at the uppermost floor of a tall building, the water tank being formed at the inner wall surface thereof with horizontal protrusions. In order to improve a vibration attenuation rate in a horizontal direction within the water tank, the water tank is installed with vertical wire meshes therein, and the horizontal protrusions serve to improve a vibration attenuation rate in a vertical direction.

Abstract: An alternating human vibration-exciting method for obtaining a free vibration waveform of buildings or civil structures having a natural vibration frequency more than 2-5 Hz. First and second same-number set of subjects having similar weights alternately apply exciting forces to a wall on a top of the structure. An electronic beat-sound generator is adjusted to a two-beat mode to generate two alternating beat sounds repeatedly so that the first and second sets can apply vibration exciting forces repeatedly at a frequency of half of the natural vibration frequency of the structure obtained by micro-tremor measurement, while alternately synchronizing their actions to the two alternating beat sounds, respectively. The vibration exciting action is stopped after the structure is brought to a sufficient resonance state, thereby obtaining a free vibration waveform.

Abstract: Disclosed is an alternating human vibration-exciting method for obtaining a free vibration waveform of buildings or civil structures having a natural vibration frequency more than 2.5 Hz. First and second same-number sets of subjects having similar weights alternately apply exciting forces to a wall on a top of the structure. An electronic beat-sound generator is adjusted to a two-beat mode to generate two alternating beat sounds repeatedly so that the first and second sets can apply vibration exciting forces repeatedly at a frequency of half of the natural vibration frequency of the structure obtained by micro-tremor measurement, while alternately synchronizing their actions to the two alternating beat sounds, respectively.