Abstract: The present application provides a biological active peptide from seawater pearl, the sequence of which is Ile-Pro-Ser-Thr-Thr-Pro-Phe-Pro-Ser-Thr-Thr-Val-Ala-Thr-Thr-Thr-Met, and the name of which is SCOL polypeptide. The biological active peptide can improve an ACE2 enzyme activity to 3.76 times, and can be applied in preparation of a drug improving an ACE2 activity, treating hypertension, anti-heart failure, anti-tissue fibrosis, anti-inflammation, and type 2 diabetes mellitus and the complication thereof, and relieving neuropathic pain. The biological active peptide can be specifically bound to the ACE2, effectively inhibits the 65% binding between novel coronavirus S protein and the ACE2, can be applied in preparation of an anti-coronavirus infection drug as an inhibitor, and specifically applied in preparation of anti-novel coronavirus drug.

Abstract: A liquid lens controlled by an interdigital electrode made of two insulated wires includes an inner core cavity body, the two insulated wires, a first transparent body, a second transparent body, a first fluid, and a second fluid. The insulated wires are arranged side by side and longitudinally winded on the inner core cavity body; the insulated wires are configured to form an interdigital electrode on a sidewall of the inner core cavity body; the first transparent body is disposed at an upper end of the inner core cavity body and the second transparent body is disposed at a lower end of the inner core cavity body; a lens cavity is defined among the inner core cavity body, the first transparent body, and the second transparent body; the first fluid and the second fluid are immiscible, and disposed in the lens cavity.

Abstract: A sealing member and a toilet flange assembly are disclosed. The sealing member is made of an elastic material, and includes an upper ring portion, a connecting ring portion and a lower ring portion that are connected in sequence from top to bottom. The upper ring portion is fitted on a flange member. Upper and lower ends of the connecting ring portion are connected to the upper ring portion and the lower ring portion, respectively. An inner wall of the connecting ring portion is connected with a toilet drain pipe. The lower ring portion has a diameter less than that of the upper ring portion. An outer wall of the lower ring portion is connected with a ground drain pipe. The toilet flange assembly can solve the problem of fitting between toilet drain pipes of different diameters and ground drain pipes.

Abstract: A sealing member and a toilet flange assembly are disclosed. The sealing member is made of an elastic material, and includes an upper ring portion, a connecting ring portion and a lower ring portion that are connected in sequence from top to bottom. The upper ring portion is fitted on a flange member. Upper and lower ends of the connecting ring portion are connected to the upper ring portion and the lower ring portion, respectively. An inner wall of the connecting ring portion is connected with a toilet drain pipe. The lower ring portion has a diameter less than that of the upper ring portion. An outer wall of the lower ring portion is connected with a ground drain pipe. The toilet flange assembly can solve the problem of fitting between toilet drain pipes of different diameters and ground drain pipes.