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Band structure of the vacancy in a 64 atom supercell using 6 3MP (with I ) BZ sampling.
Band structure of a vacancy in a 128 atom supercell using 2x2x2 MP mesh with point included.
The structure retains D2d symmetry. 0 1 02 03 04 0 -8 -6 -4 -2 0 2 4 6 A1 #254 Energy (eV) KPOINTS Fig 3d.
Fig 4a Unrelaxed structure of the indiumantimony-vacancy cluster.
A Quantum Theory, International serious of Monographs on Chemistry, Vol.22 (Oxford University Press, Oxford, 1990).

Therefore, on the basis of borrowing ideas from working principle and structure of straw crushing and returning machine, the design and improvement shall be also made according to features of pineapple leaves.
Later, with reference to structure and work principle of straw crushing and returning machine, some pineapple leaf crushing and returning machines are researched and made; those models mainly adopt roller tractor as power source, and the crushing and returning machine is suspended on tractor to carry out operation; the main structure generally includes: three-point suspension mechanism, rack, land wheel, drive system, crushing mechanism, and other parts, and such model can effectively damage pineapple leaf and its fiber so that the crushed pineapple leaves can be quickly decomposed.
For example: as early as in 1997, Youxin Dai [15] made a set of BLXC-1GPS pull-type pineapple stubble-removal crusher, the structure of which was similar to that of straw crushing and returning machine, and such crusher mainly consisted of traction and hitching structure, transmission structure, travelling wheel structure for which the height could be adjusted, shovel-type fly ball roller, and rack; it had an output power of 32.35kw, and an operation width of 870mm; the crushing cutter knifes were shovel-type fly ball; there were totally 18 knifes uniformly arranged as 3 lines around roller, each line was arranged with 6 knifes, and the cutter knifes of 2 neighboring lines were mutually staggered; under the condition of selecting shift 1 as speed of crushing tractor at the first time and selecting shift 3 as crushing speed at the second time, the requirement of returning technology could be met; in 2009, Jing Zhang et al. [16] researched and made a set of pineapple leaf crushing and returning
machine which mainly consisted of drive system, rack, crushing structure, and limit wheel; the cutters which consisted of L-shape knifes in a back-to-back form were adopted; the cutters were distributed on knife roll in a symmetrical and spiral way along axial direction, with an operation width of 160mm and a productivity of 0.2 hm2/h.
Torija: Food Chemistry Vol. 54(1995), p.93-100

The internal factors affecting slope stability include the formation and lithology, characteristics of rock structure surface, geological structure and ground stress
Lithology, including physics, chemistry, physical and mechanical properties of the composition of water, rocks, these are made of different rocks have destroyed their different characteristics[6]
(2)characteristics of rock structure surface.
(3)geological structure and to ground stress.
Geological structure for slope stability has a more significant role in the more complex geological structure slope stability is relatively poor.

Then, the structure of OSO3− site have very asymmetric local geometry which is close to the C2v symmetry in bridge bidentate complexes [14].
Table 1 also shows the interplanar spacing (dhkl) for the crystalline structure of SDS and LASC.
After recrystallization of PLA with methanol, PLA catalyzed by LASC has a fine white structure.
In future research, this catalyst should have support to maintain its structure in the process.
Nakamoto, Applications in Inorganic Chemistry.

The inner structure has changed after the change of the chemical bond structure, it shows that peak position shifts.
It shows that metakaolin becomes active substance and decomposes amorphous active substance, SiO2 and Al2O3, with its amorphous and remote disorder overall structure.
So the material structure presents amorphous to semi-crystalline and the wave of the material shows dispersive peak.
At last the inner structure changes and the final main product presents to be Si—O—Al polymerization structure. form and could be replaced by SiO44-, the structure of the internal system was changed, the final product main was Si—O—Al polymerization structure; X-ray diffraction shows that: in polymerization process, fly-ash and metakaolin with liquid particles produced a striking reaction, the diffuse peak form shows that products are aluminum silicate gel phase and on the structure presents the amorphous to a half of crystal state.
Geopolymer chemistry and properties [C].

The molecular conformation of the soluble sericin is mainly of coil structure and the aggregation structure of the polymer is amorphous structure [1].
The sericin has good efficacy of moisturizing and hygroscopic is determined by the molecular structure of the sericin.
And this makes many hydrophilic group of its polypeptide chain on the surface of the spatial structure of the molecule.
The structure of sericin and the angle prion whitening protein is very similar, so sericin has a good affinity with the hair.
[6] Zhou Yong-Yuan: The slurry chemistry with physics (Textile Industry Press, Beijing 1985)

THE ASPECT OF ATOM STRUCTURE The study of iron is of great interest, both experimentally and theoretically, due to its importance in materials science, physics and chemistry.
Atomistic simulations of the core structure of a0 [100] dislocation in iron were made several decades ago [5, 6].
(a) Atomic models of the [100](100) edge dislocation core; (b) the structure unit along the dislocation line.
The ASED-MO method was employed to study the electronic structure of hydrogen in dislocated bcc Fe structure.
Despite the difference in the core structure of each dislocation, they both behave in a very similar way.

Pressure thereby change the crystal structure, the electronic structure and the interaction between the atoms (molecules) to form a new material state.
In the GaN/AlxGa1-xN square QW structure, the parameters of the well-material (GaN) are constant.
It is caused by bound action of impurity center and quantum well structure on the electron in QW, that is, the bound action of impurity center and quantum well structure on the electron in parabolic QW is stronger than that in square QW.
Summary By using the variational method, the pressure effects on the Eb of hydrogenic impurity state in the wurtzite AlyGa1-yN/AlxGa1-xN parabolic QW structure and the GaN/AlxGa1-xN square QW structure are investigated theoretically.
Effect of nitrogen on the electronic band structure of group III-N-V alloys.

Microstructural study showed that the weld region is composed of unaffected base metal and the stir zoned [weld nugget] which is characterised by a fine equiaxed grain structure.
The microstructural grain structure in the weld nugget is usually very fine and equiaxed, ensuring elevated mechanical strength and ductility [4, 5].
The coarse grain size not only softens the structure but also increases its ductility.
Evangelista, TEM analysis of a friction stir-welded butt joint of Al-Si- Mg alloys, Materials Chemistry and Physics 81 (2003) 289-292
Mahoney, Multi-sheet structures in 7475 Aluminum by friction stir welding in concert with post-weld superplastic forming, Scripta Materialia 47 (2002) 631-636

Soekarno-Hatta 15, Balikpapan 76136, Kalimantan Timur, Indonesia 3Inorganic and Physical Chemistry Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl.
It also confirms that (2D) hybrid metal-halide with tunable halide have identical structure for both bromine-rich and iodine-rich composition.
In order to prevent the oxidation, we synthesize the two-dimensional structure of the perovskite since low-dimensional tin halide hybrids have shown higher stability than three-dimensional (3D) tin halide perovskites.
The illustration schematic structure of 2D tin mixed-halide perovskites is shown in Figure 2 a).
Figure 2. a) 2D schematic structure and b) FTIR spectra of tin mixed-halide perovskite.