It was concluded that the atomic structure of the fiber resembles the hexagonal structure of graphite. But locally this structure is disturbed. From the modulation of the superstructure it is deduced that this disturbance extends at least two layers into the bulk....
the advantages of RDF are clarified.The application of RDF on the structure of carbon fiber is prospected.The evolution of stucture can be revealed in the preparation procedures of carbon fiber from atomic level by RDF,which will play an important guiding role in the pre-paration of high ...
3D Printed Flow Field and Fixture for Visualization of Water Distribution in Fuel Cells by X-ray Computed Tomography A novel microstructural modeling approach was developed to stochastically generate a realistic 3D structure of carbon fiber paper based gas diffusion media... RT White,FP Orfino,ME ...
We should be looking for technologies that will radically transform the economics of going into space. We need to reduce the costs of space operations, not just by factors of five or ten but by factors of a hundred or a thousand, before the large-scale expansion of mankind into the solar ...
Separation of structure dynamics and surface field effect in diffraction images Femtosecond excitation of freestanding graphene with visible light drives larger rms motions of the carbon atoms of graphene, leading to variation of the lattice temperature over time, Tl(∆t)27. With the space and time...
Although the nucleocytoplasmic large DNA viruses (NCLDVs) are one of the largest group of viruses that infect many eukaryotic hosts, the near-atomic resolution structures of these viruses have remained unknown. Here we describe a 3.5 Å resolution icosahedrally averaged capsid structure of Paramec...
Through the eyepieces a lighted screen revealed both external and internal structure of the tiny insect—only it wasn’t an insect. Gaynor felt a curious, unbelieving numbness. Clearly visible in the screen was the tiny solar motor and an incredibly complicated drive mechanism for the wings. ...
x-Ray absorption spectroscopy (XAS) can be divided into x-ray absorption near‐edge structure (XANES) and extended x-ray absorption fine structure. While the former provides information mainly about geometry and oxidation state, from the latter knowledge about the metal site ligation can be obtaine...
Ultimately, Na insertion over xNa = 0.75 transforms the intercalated structure into Cu nanoparticles embedded in a crystalline Na2S matrix via conversion reaction (Fig. 4f and Supplementary Fig. 17). The four-step sodiation mechanism of CuS nanoplates demonstrated above is structurally reversible...
(Vi) of the corresponding structure. (2) For a few elements whose simple substances are gases, liquids, or weakly interacting molecular crystals at standard temperature and pressure (e.g., N and O), the atomic stiffnesses were derived from their compounds in MP database that have first-...