Abstract: A convection oven includes an oven body having a heating chamber heated by a heat source, and a vibration unit mounted at one side of the oven body and vibrating heated air so as to be uniformly distributed within the heating chamber. As the vibration unit vibrates, air within the heating chamber can be fluctuated periodically to promote mixing between more heated air and less heated air to make temperature of air uniform. Accordingly, heat can be uniformly distributed to a cooking target or material, quality of cooking can be improved, and in addition, because cooking time can be shortened, the performance of the oven can be enhanced.

Abstract: A convection oven includes an oven body having a heating chamber heated by a heat source, and a vibration unit mounted at one side of the oven body and vibrating heated air so as to be uniformly distributed within the heating chamber. As the vibration unit vibrates, air within the heating chamber can be fluctuated periodically to promote mixing between more heated air and less heated air to make temperature of air uniform. Accordingly, heat can be uniformly distributed to a cooking target or material, quality of cooking can be improved, and in addition, because cooking time can be shortened, the performance of the oven can be enhanced.

Abstract: Disclosed is a method of forming a pattern by means of coatings containing an ionic component having a positive or negative electric charge using electrostatic attraction force and/or repulsion force. In the method, it is possible to significantly improve precision and efficiency of the pattern formation.

Abstract: Disclosed is a method of providing cooperative diversity in a Multiple Input Multiple-Output (MIMO) wireless network including a source station, a relay station, and a destination station each for transmitting a plurality of streams through multiple antennas, the method including: decoding, by a relay station, a plurality of streams received from the source station, checking for errors in the individual decoded streams, and transmitting error detection information to the source station and thereafter relaying streams having no errors to the destination station and retransmitting, by a source station, streams corresponding to streams which were previously found to include errors to the destination station based on the error detection information.

Abstract: A microsystem for separating serum from blood using a centrifuge is provided. The microsystem includes various chambers and channels. When blood is injected into the channels and centrifuged, serum and blood cells in the injected blood are distributed into different chambers. Thus, the serum can be separated from the blood.

Abstract: A method for remotely controlling an external appliance via a mobile terminal in a mobile radio system supporting a short message service (SMS) which comprises the steps of periodically converting the status data of the external appliance into a short message in a predetermined form, transmitting the converted short message to the mobile terminal, setting the mobile phone in a short message transmission mode to transmit the converted short message to a designated message center, converting the received short message by the message center into the corresponding state data which is transmitted to an external appliance monitoring center, analyzing the state data of the short message by the monitoring center to produce a control command which is transmitted to the message center, converting the received control command by the message center into the corresponding short message which is transmitted to the mobile phone, transmitting the converted short message of the control command by the mobile terminal to the ex