The intent of this study is to explore the physical properties and long-term performance of concrete made with metakaolin (MK) Necklaces as a binder, using microsilica (MS) and nanosilica (NS) as substitutes for a portion of the ordinary Portland cement (OPC) content.The dosage of MS was varied from 5% to 15% for OPC-MK-MS blends, and the dosage of
Home Goods In recent years, fingerprint recognition has become more and more widely used in mobile phones.A fingerprint recognition device hidden under an opaque display panel designed based on a waveguide and frustrated total internal reflection (FTIR) is proposed and demonstrated herein.In order to meet the demand for a high screen ratio for Conn
Leizhou Bay in Guangdong Province is the most important wintering site in China for the critically endangered Spoon-billed Sandpipers (Calidris pygmaea).As food is usually a strong predictor of presence, in the winters Home Goods of 2019-2022 we studied arthropod food resources and diet on the intertidal mudflats at the Tujiao and Hebei mudflats in