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Furthermore, heptachlor structure was found in all sediment samples and all fish samples studied.
Because the buried layer contains 3 neurons, a structure of 6 - 3- 1 was employed to estimate heptachlor epoxide elimination efficiency.
Industrial & engineering chemistry research, 2005. 44(3): p. 600-605
International Journal of Environmental Analytical Chemistry, 2022: p. 1-34
Arabian Journal of Chemistry, 2016. 9: p.

The crystal structure was obtained on a Bruker Smart-1000 CCD diffractometer.
Crystal structure determination.
As compound 1 has a 3D nanoporous structure, and compound 2 is a 0D structure, this transformation process can be seemed as open and close of a container.
Nitrogen sorption isotherms of 1 reveals the sorption behavior, confirming the porosity structure.
Magnetic and gas storage ability were altered with the structure transformation by the change of the coordination modes.

The influence of doping on the structures, compositions and dielectric properties of the materials were investigated by X-ray diffraction, scanning electron microscopy and dielectric measurements between 40 Hz and 110 MHz.
All these studies mentioned herein aimed to decrease dielectric loss by controlling the chemistry and structure of interfacial regions at grain boundaries.
The crystalline structure and microstructure of the sintered specimens were characterized by X-ray diffraction (D/max-2550/PC, Rigaku, Japan) and scanning electron microscopy (SEM, Quanta 200, Philips, Netherlands), respectively.
The DBLC structure has an equivalent circuit consisting three parallel RC elements connected (Rg, Cg), (Rgb, Cgb) and (Rs, Cs).
For all the samples, the diffraction peaks could be indexed to a cubic perovskite structure according to JCPDS-05-0566, except that additional small diffraction peaks appear around at 2θ~32.5°, 35.4° and 46.7° as the addition content of SrTiO3 increases.

Sodium hydroxide, sodium sulfite, sulfuric acid, 3-sodium phosphate, soluble glass and hydrogen peroxide were purchased from Shanghai Chemistry Reagent Co., Ltd., China.
The extent of removal of the non-cellulosic substances played a major role in determining the structure and properties of the fibers.
Also, this structure of the bast fibers was expected to provide good thermal and sound insulation properties.
It was accord with the results of chemical components and morphological structure.
XRD analysis To investigate the crystal structures of the fibers, the XRD patterns were measured for these samples.

All samples are pure single phase with an ordered olivine structure indexed by the orthorhombic Pnmb space group.
All samples reveal a single-phase LiFePO4 with an ordered olivine structure indexed by orthorhombic Pnma (JCPDS card no. 83-2092) [34].
All the samples prepared showed an ordered olivine structure with the space group Pnmb.
The structure and particle-size of the prepared LiFePO4/C can be adjusted by the sintering temperature and sucrose amount. 2.
Guo: Materials Chemistry and Physics Vol. 98 (2006), p. 373 [17]L.N.

Calcium phosphate scaffolds have been characterized by XRD and optical microscopy in a Olympus SZ40 and the carbon content of the scaffolds was analyzed in the Campbell microanalytical laboratory of the Department of Chemistry of the University of Otago, Dunedin, N.Z.
The second step represents carbonization at temperatures above 600o C that breaks down the carbon chains of the biopolymer structures and forms graphitic structures [10].
The pyrolysis of the wood at 800 o C yields an amorphous carbon structure that can be used to develop a carbonate containing calcium phosphate scaffold that maintains the pore structure of the original wood.
Ashby, Cellular solids: structure and properties Pergamon, U.K. 1988
Meylan, Three-dimensional structure of wood.

Gradation was as following: “0” – no positive structures found in visual field, “0/+” – occasional positive structures seen in visual field, “+” – few positive structures seen in visual field, “++” – moderate number of positive structures in visual field, “+++” – numerous positive structures seen in visual field.
Characteristics of BCP granules porous structure.
Similarly OP positive structures we found occasional on average.
Moderate amount of osteocalcin positive structures in visual field.
Moderate amount of osteoprotegerin positive structures in visual field.

Since its invention in 1980s in Japan[5], researchers and engineers had carried out comprehensive researches from point of view of chemical composition and structure, working mechanism, relationship between structure and performance to reveal basic interactions of PCs and cement[6-10].
PCs adsorb on cement particles by interface interaction of anionic function groups and cement particles in solution, and it was influenced by chemical structure of PCs, mineral phase composition of cement and ions in solution.
In blank cement paste, cement particles show different electrochemical properties[11] in water due to differences in mineral phase composition, and flocculation structures will form by electrostatic attraction among cement particles.
He explained as: hydration products of calcium sulfate hemihydrates belonged to monoclinic crystal, and Ca2+ linking with SO42− tetrahedrons formed double-layer structure.
Plank [37] thought PCs could intercalate into tobermorite which had a layered structure and it contributed to changes of lattice parameters and morphology of hydration products.

It can simulate real experiments, and it also is suitable for describing molecular structure and mechanical behavior.
Due to the molecular chain of high polymer material is longer, the molecular mechanics method can describe the structure of the ground state atoms and various temperatures average structure and physical change processes.
The minimum energy is used as the criterion, so as to obtain the most stable structure of the system.
D., Franck R., Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxanes, Chemical Reviews. 110 (2010) 2081-2173
Structure and Morphology, Macromolecules. 37 (2004) 9449-9456

For example, the model used in the study conducted by Zaghloul and White [3] employed 3D dynamic finite element to investigate the response of moving loads on pavement structures.
Materials and Methods The materials characteristics and the geometry configuration of the pavement structure consist of a standard structure of the airport of Reggio Calabria (Italy).
Fig. 5 - Mises stresses [Pa] at cross section A-A of the pavement structure.
Conclusions To predict the dynamic behaviour of flexible airport pavement structure subjected to an impact load, a multi-layered 3D finite element model was developed.
Kumar, Development of material constants for nonlinear finite-element analysis, in: Rubber chemistry and technology, pp. 879, (1988)