interrelated factors: (1) a significantly inhomogeneous mismatch strain; (2) a variable degree of ordering of isomorphous components due to the compositional inhomogeneities; (3) different degrees of ordering of isomorphous atoms caused by different orientations, heights and velocities of growth steps....
The structure, including hydrogen atoms, was solved from Patterson and electron density maps and refined by least-squares methods to a conventional unweighted R factor of 5.9%. The molecules are monomeric with the yttrium being at the center of a distorted octahedron of chelate oxygen atoms (...
Atoms (原子) are all around us. They are the bricks of which everything is made. Millions of atoms are held in just one grain of salt, but in spite of their small size they are very important. The way an everyday object acts depends on what kind of atoms...
The n/sup 5/.n/sup 5/-fulvalene ligand constitutes an attractive matrix on which to firmly affix two metal atoms in close enough proximity to enable metal-... KPC Vollhardt,TW Weidman - 《Journal of the American Chemical Society》 被引量: 150发表: 1983年 Half-Filled Layered Organic Super...
Elements are made of ___? A. Atoms B. Molecules C. H2O D. Compounds Another name for our voice box is ___? A. Larynx B. Pharynx C. Trachea D. Mouth Submitted by: Mansoor Ahmed Suhag The Scientific Study of Caves are know as ___ ? A. Haematology B. Speleology C. Oology D. ...
The electric susceptibility Xe caused by the orientation of polar substances is inversely proportional to the absolute temperature T while the induced susceptibility of atoms is temperature independent. Using special capacitors our experiments discovered that directional motion of Rb atoms in a non-uniform...
intermolecular distances (from 4.403 at 295 K to 2.460 at 150 K; Δd = 1.943 ) between the terminal Cu atoms of the trinuclear fragments {[[Cu(hfac)2]3(μ-O,N-L(a))2]} and the noncoordinated N atoms of the pyrazole rings of the mononuclear {[Cu(hfac)2(O-L(a))2]} ...
The different macroscopic elastic properties of steel and rubber result from their very different microscopic structures. The elasticity of steel and other metals arises from short-range interatomic forces that, when the material is unstressed, maintain the atoms in regular patterns. Under stress the ...
aMany cloud togerther becomes rain 许多覆盖togerther成为雨[translate] athe size of atoms decreases from left to right across a period in the periodic table for example,on moring from lithium to beryllium,the number of charges on the nucleus is increased by one,so that all the orbital electrons...
shape[0] # number of atoms for this crystal batch_atom_fea.append(atom_fea) batch_nbr_fea.append(nbr_fea) batch_nbr_fea_idx.append(nbr_fea_idx + base_idx) new_idx = np.arange(n_i, dtype="int64") + int(base_idx) crystal_atom_idx.append(new_idx) batch_target.append(target) ...