Abstract: The application discloses a battery top cover sheet and a battery. The battery top cover sheet includes a top cover body, an electrolyte filling structure, a boss, and a process groove are arranged on the top cover body, the electrolyte filling structure includes a sinking groove located on an upper surface of the top cover body and a filling port penetrating through the top cover body, the boss is located on a lower surface of the top cover body and arranged around the filling port, and the process groove is arranged on a lower surface of the top cover body and arranged around the boss.

Abstract: This disclosure provides a method for diagnosing the action of nervonic acid and use thereof. The method for diagnosing acting of nervonic acid in acer truncatum bunge seed oil can be used to determine whether nervonic acid is absorbed and transformed by the body, and provides guidance for whether nervonic acid plays a role after intaking acer truncatum bunge seed oil.

Abstract: This disclosure provides a use of biomarker SM(d18:1/24:1(15Z)) in the preparation of a reagent or kit for diagnosing cognitive impairment. This disclosure also provides a method for diagnosing and treating cognitive impairment by detecting the content of biomarkers SM(d18:1/24:1(15Z)) and TG(16:0/18:0/18:4(6Z,9Z,12Z,15Z)), PC(P-16:0/22:4(7Z,10Z,13Z,16Z) or PC(P-18:0/18:4(6Z,9Z,12Z,15Z)) to determine whether the patient has cognitive impairment.