A NUMBER of years ago, Wood1 suggested that the circumferential spreading of the sharp X-ray diffraction spots from annealed grains into continuous arcs along the Debye circle on deformation could be best accounted for by supposing that the grains break down into a number of fragments oriented at...
Williams, “The structure of grain boundaries described as a packing of polyhedra,” Acta Metall., 26 , No. 11, 1647–1663 (1978).I4M. F. Ashby, F. Spaepen, and S. Williams, "The Structure of Grain Boundaries Described as a Packing of Polyhedra," Acfu Mefull., 26 [I11 1647-63...
The purpose of this review is to summarize the present state of understanding of the atomic structure of grain boundaries by highlighting those results that may provide most insight. For the earlier work, the reader is referred to existing review articles and conference reports [1 – 8]. H. G...
Atomic structure of a Σ99 grain boundary in aluminium: A comparison between atomic-resolution observation and pair-potential and embedded-atom simula... An atomic-resolution image of a symmetrical Σ99 {557} ⟨110⟩ tilt boundary in aluminium is compared with images simulated from models ba....
<p><strong>Step-by-Step Solution for the Structure of Maize Grain</strong></p><p>1. <strong>Definition of Maize Grain</strong>: - Maize grain is a type of fruit known as a karyopsis, which is a single-seeded fruit. </p><p> <strong>Hint</strong>: Re
Bacterial type IV secretion systems (T4SSs) are largely responsible for the proliferation of multi-drug resistance. We solved the structure of the outer-membrane core complex (OMCCF) of a T4SS encoded by a conjugative F plasmid at <3.0 Å resolution by cryoelectron microscopy. The OMCCFco...
A wax-impregnated circular core is removed from the bed and melted in a series of well-defined layers that are then sieved separately to provide data describing the variation with depth of the particle-size distribution. The volumetric equivalence of the grain-size distribution obtained for an ...
seen in Fig. 1c. Finer, more equiaxed grains were seen at the bottom of the build as well as near the top layer, with elongated grains forming in the middle layers. From their work, it can be concluded that the HAZ of a currently scanned layer can cause grain growth in layers directl...
Recently, the structural analysis of protein complexes by cryo-electron microscopy (cryo-EM) single particle analysis (SPA) has had great impact as a biophysical method. Many results of cryo-EM SPA are based on data acquired on state-of-the-art cryo-electron microscopes customized for SPA. The...
a, Three periods were divided on the basis of key developments of hybrid rice breeding. b, The proportion of hybrids from the three breeding periods. c–k, Box plots demonstrating phenotype distribution for hybrids from the three breeding periods: heading date (c); full grain number per panicl...