Defects in acceptor-doped perovskite piezoelectric materials have a significant impact on their electrical properties.Herein,the defect mediated evolution of pi
Some polymers are flexible,foldable,and wearable.Structural-functional composite is fabricated by adding inorganic fillers with functional properties.Up to date
选取杂交狼尾草和牛粪为原料,研究有机负荷和原料配比对混合原料发酵系统内微生物群落组成的影响。研究结果表明,属水平上系统内优势细菌有梭菌属(Clostridum)、普雷沃菌属(Prevotella)、互养棍状菌属(Syntrophorhabdus)、假单胞菌属(Pseudomonas)和噬蛋白质菌属(Proteiniphilum)等;优势产甲烷古菌有甲烷丝菌属(Methanothrix)和甲烷蝇菌属(Methanolinea)等。当系统有机负荷低于4.5 g VS/(L·d)(GC31)或5.0 g VS/