In this research, the effects of foam content on mechanical property, thermal property and sound absorption of cellular lightweight geopolymer concrete (CLGC) were studied.The geopolymer mixtures were made with 15 M NaOH solution, sodium silicate/NaOH ratio (NS/NaOH) of A/C Adaptor 1.00, sand/ash ratio of 1.25, liquid/fly ash ratio of 0.4.The foam
Since the first case of COVID-19 in December 2019 in Wuhan, China, SARS-CoV-2 has spread Brace worldwide and within a year and a half has caused 3.56 million deaths globally.With dramatically increasing infection numbers, and the arrival of new variants with increased infectivity, tracking the evolution of its genome is crucial for effectively cont
Abstract Door Seal End Background Orbital emphysema and pneumocephalus rarely occur without associated skull fractures.Over the past decades, a few case reports have documented compressed air injuries as a rare cause of orbital emphysema and pneumocephalus in the absence of concomitant skull fractures leading to various injuries.Case presentation W