Abstract: A broadband radio frequency signal optical fiber phase-stable transmission system includes a local end and a remote end connected by a dispersion compensation module and an optical fiber. The local end modulates a first auxiliary signal whose frequency is half of the frequency of the to-be-transmitted signal and a second auxiliary signal whose frequency is 1.5 times the frequency of the to-be-transmitted signal through the optical carrier and filters out a lower sideband to obtain an optical signal containing only the optical carrier, a first signal, and a second signal corresponds to the optical signal of the first-order upper sideband. The optical signal is transmitted to the remote end through the dispersion compensation module and the optical fiber.

Abstract: Silk protein composite coating solution and its preparation method and application. In weight percent, silk protein complex coating liquid is constituted by the following substances: 2 to 10% of the crosslinking agent, 0.5 to 2% acetic acid, 10 to 20% of the silk protein, the remainder being water. The method for preparation of silk protein composite coating solution has these steps: (1) preparation of the silk protein; (2) silk protein composite coating solution was prepared. Silk protein of the present invention has a natural emollient, antibacterial, and anti-allergic effects, and can be used on daily sanitary supplies for women, infants, and elderlies.