Water companies make efforts to reduce the risk of microbial contamination in drinking water.A widely used strategy is to introduce chlorine into the drinking water distribution system (DWDS).A subtle potential risk is that non-lethal chlorine residuals may select for chlorine resistant species in the biofilms that reside in DWDS.Here, we quantify
To improve the catalytic efficiency of zinc ferrite, the specific surface area is increased, and the surface morphology of zinc ferrite is optimized.Besides, the zinc ferrite is combined with other materials to obtain more efficient and practical photocatalyst.The modification methods of zinc ferrite and the preparation methods of zinc ferrite with
Factors thought to be related to lung cancer include smoking, radon, and educational attainment.These factors were Lounge Chairs analyzed in the present ecological study for Oregon with correlation and linear regression statistics.A moderate, inverse, and statistically significant correlation was found with educational attainment while surprisingly
In this paper, the partial replacement of volcanic pumice powder (VPP) was investigated for use as a supplementary cementitious material.High-strength concrete (HSC) was prepared using two sets of VPP (10% and 20%) incorporated with three sets of polypropylene fiber (PF) (0.20%, 0.35%, and 0.50%) to produce different concrete mixtures.Several tests
In this paper, a novel H-shaped radial phononic crystal (H-RPC) structure is proposed to suppress the anchor loss of a Lamb wave resonator (LWR), which has an ultra-high frequency (UHF) and ultra-wideband gap characteristics.Compared to previous studies on phononic crystal (PC) structures aimed at suppressing anchor loss, the radial phononic crysta