we have been witnessing the rapid emergence and turnover of multiple variants of concerns (VOCs) such as Alpha (B.1.1.7) initially found in the United Kingdom; Beta (B.1.351) in South Africa; Gamma (P.1) in Brazil; Delta (B.1.617.2) in India; and Omicron subvariants in ...
Morphological, cultural and sporulation characteristics through light microscopy and SEM; and sequence analysis of the ITS nuclear rDNA were applied. Zhang et al., 2012 Bipinnula fimbriata Seven isolates were previously identified as the form-genus Rhizoctonia belonging to three groups, Ceratobasidium sp...
However, their growth trajectories in the United States and South Africa indicate a substantial transmission advantage that will probably result in further expansion, as is being observed in countries such as the United Kingdom (Fig. 1a). Phylogenetically, these new subvariants evolved independently ...
SEM result showed SiO2-g-(MMA-co-BA) nanoparticles dispersed in PVDF matrix uniformly due to the good miscibility between PVDF and MMA-co-BA shell. The prepared SiO2-g-(MMA-co-BA) particles behaved a novel toughening ability and even 1wt% modifier could induce the ductile fracture of PVDF...
Lead-free Ba 0.1 (Bi 0.45 Na 0.45 )TiO 3 (BBNTO) nanoceramics were synthesized using high-energy ball milling, followed by a solid-state reaction method. XRD analysis of the microstructure indicated the formation of tetragonal symmetry. The crystallite size of the nanoceramic powder decreased fr...
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分别以α-FeOOH和γ-FeOOH为原料,经化学沉淀-局部规整法制备了棒状BaFe12O19,通过XRD,FT-IR,SEM及VSM技术对两种FeOOH制备BaFe12O19的形成历程及磁性能进行了对比研究... 曹晓晖,谭玉琢,孟锦宏,... - 《科学通报》 被引量: 15发表: 2010年 Synthesis process of Ba-ferrites from α-FeOOH and γ-FeO...
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GD Semchenko,AV Dunikov,IN Opryshko,... - 《Refractories & Industrial Ceramics》 被引量: 20发表: 1999年 The phase transitions of the random-cluster and Potts models on slabs with $q \\\geq 1$ are sharp We prove sharpness of the phase transition for the random-cluster model with$q \...
The FESEM patterns showing clearly the evolution of grains of the composites along with their monoliths. The variation in the grain sizes and EDX composition for (a) HAP, (b) BST, (c) 20H–80B, and (d) 80H–20B has also been included to get the quantitative estimate of the same. The...