Abstract: Proposed is a muscle strength-enhancing composition being capable of maintaining or strengthening muscles or preventing muscle-related diseases. More specifically, proposed is a food composition containing a composite extract as an active ingredient obtained by mixing Angelica keiskei and Morus alba L. at a weight ratio of 1:8 to 16 and extracting the resulting mixture with alcohol. The food composition promotes antioxidant activity (for example, DPPH scavenging activity and ABTS scavenging activity) and muscle function enhancement activity which suppresses muscle protein breakdown and promotes muscle building, whereby the food composition prevents muscle-related diseases by enabling muscles to be maintained or strengthened.

Abstract: The diversity techniques—space time block code (STBC), maximum ratio combining (MRC)—with multiple antennas provide better reliability than general system. But there are some limitations such as size, cost, hardware complexity, etc, because of multiple antennas. In this letter, we propose a cooperative transmission technique using STBC. We can overcome those limitations and give the gain of cooperative transmission diversity in a concept of virtual multi-input multi-output (MIMO) with single transmit antenna.

Abstract: The diversity techniques—space time block code (STBC), maximum ratio combining (MRC)—with multiple antennas provide better reliability than general system. But there are some limitations such as size, cost, hardware complexity, etc, because of multiple antennas. In this letter, we propose a cooperative transmission technique using STBC. We can overcome those limitations and give the gain of cooperative transmission diversity in a concept of virtual multi-input multi-output (MIMO) with single transmit antenna.