Abstract: The present invention relates to a method for preparing protein microbeads for improving the stability of a protein preparation. It was confirmed that when protein is mixed with trehalose and protein is dehydrated in n-octanol by using the SPG membrane emulsification technique, microbeads with a narrow particle size distribution and high reversibility are formed, and the microbeads exhibit high stability to external shock or high temperature stress compared to protein solutions. Accordingly, the method for preparing protein microbeads according to the present invention is expected to be utilized as a method for improving storage stability by applying same to the preparation of high-concentration protein pharmaceuticals.

Abstract: A node device is provided. The node device includes forming a jamming signal generation unit configured to generate a jamming signal for a target signal which is transmitted from a base station to an intended receiving device supposed to receive the signal and an unintended receiving device not supposed to receive the signal, a beamforming vector determination unit configured to determine a beamforming vector of the jamming signal based on an amplitude of a received power of the jamming signal at the intended receiving device, and a transmission unit configured to transmit the jamming signal based on the determined beamforming vector.

Abstract: A node device is provided. The node device includes forming a jamming signal generation unit configured to generate a jamming signal for a target signal which is transmitted from a base station to an intended receiving device supposed to receive the signal and an unintended receiving device not supposed to receive the signal, a beamforming vector determination unit configured to determine a beamforming vector of the jamming signal based on an amplitude of a received power of the jamming signal at the intended receiving device, and a transmission unit configured to transmit the jamming signal based on the determined beamforming vector.