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Please note that the horizon at this depth, in addition, contains a large amount of vegetal debris, which lost the anatomic structure and became partially humified, but herewith preserving the frame with a large number of tortuous and closed pores, which may mechanically arrest metals in an efficient way.
Römkens, A framework to measure the availability of engineered nanoparticles in soils: Trends in soil tests and analytical tools // TrAC Trends in Analytical Chemistry. 75 (2016) 129-140
Oldenburg, Nanoparticle characteristics affecting environmental fate and transport through soil // Environmental Toxicology and Chemistry. 28 (2009) 1191-1199
Cornu, Identifying the functional macropore network related to preferential flow in structured soils // Vadose Zone J. 14 (2015) [11] P.

Presently in the study area there are some researches on ordovician limestone aquifer and no researches about groundwater chemistry and isotope on the cover water-bearing zones [3, 4].
Sanjiao is located in the west wing of Luliang mountains anticlinorium and it is a monoclinal structure, west dip and low dip.
It is can be obtained that the ordovician limestone aquifer is formed in last glacial and in which δD and δ18O value in the precipitation is lower. 5.5 Water Chemistry Analysis Fig.3 showed the piper graph drawed by the water quality test results of 30 samples.
[7] Jian Kuo, Liu Shunxi, Chen Yilin, Fu Xuehai, Infrared Spectroscopic Study on the Structure Evolution of Low Rank Coal and Its Correlation with Carbon Isotope of Alkane Gas in Pyrolysis Process, spectroscopy and spectral analysis. 38 (2018) 2070-2075

The underlying chemistry is that mercury and its related compounds are soft Lewis acid and they bind readily with the soft Lewis bases such as sulphur containing compound [11].
In low magnification, the sample exhibits highly agglomerated structures as observed in Fig. 2a.
Higher magnified images (Fig. 2b) illustrate that the highly agglomerated structure is indeed composed of many hexagonal nanoplates in which each of it has a mean edge length of ca. 500 nm and an average thickness of ca. 50-100 nm.
Hamid: Abstracts of Papers, in: 16th Malaysian Chemical Congress, Malaysian Institute of Chemistry (IKM): Kuala Lumpur, Malaysia, 2010; Abstract MPC16

As a result of the chemical process, while MWCNT structure is changed, presence of dominant peaks demonstrate structure didn’t turn into graphene nano ribbon (GNR) structure (Fig. 2).
Structure, which is obtained as a result of production, is defined as GNR/CNT hybrid structure [17].
PAN+GNR As can be seen from SEM images poliacrilonitril (PAN) clumping pure fiber structure can not be seen but is seen as a very small amount of droplet formation in the structure.CNT and GNR added nummular droplet structure is seen in more than Ag and Cu-doped samples.
These results demonstrate behavior of electron pairs in the structure which is occurred by frequency effect.
Royal Society of Chemistry. pp. 99–.ISBN 978-1-84973-574-2 (2013) [3] F.K.

Secondary and tertiary structure of 3D gene encoding protein.
Tertiary structure prediction was computed by Phyre 2.0, and the secondary structure, 3D tertiary structure and the crystal structure are shown in Fig.6, Fig.7 and Fig.8 respectively.
Figure 6 Secondary structure prediction calculated by DNAStar 7.0.
Schultz: Structure.Vol5(1997),p.1109-1122
Song: Computers and Applied Chemistry.Vol28(2011),p.411-414

This was particularly exciting because it created a new field of research and a number of opportunities on the boundary between chemistry and condensed-matter physics [2-4].
The peak at 2925 cm-1 corresponds to C-H stretch in the structure.
The microcrystalline structures were observed in the film after irradiation with oxygen ion beam, which exhibits the growth of grain like structures at higher fluence.
Nazzai, The Structure and Mechanical Properties of Polypyrrole, Mol.
Kriz, Introduction to Spectroscopy: A Guide for Students of Organic Chemistry, 3rd ed.; Harcourt College Publishers: Fort Worth, TX, 2001.

Secondly, the reinforced dislocation cell structure(pinned by precipitates) would also act as a sub-boundary to interrupt the growth of intermediate transformation phase.
From the above two steps of control cooling, the transformed microstructure is composed by acicular structure and bainitic ferrite.
The microstructure of simulated specimen is shown in Fig.7, it can be seen that the microstructure is the typical acicular structure.
The evolution of dislocation cell structure and the precipitation of microalloys on the dislocation wall during the relaxation period will make the reinforced cell structure to act as sub-boundary in the austenite, it will benefit the transformation of the acicular ferrite and limited the growth of bainitic ferrite.
Huang: Materials Chemistry and Physics, 69(2001), p.113 [7] X.

For Steel B, the banding structure can be observed.
The existence of the banding structure was supposed due to element segregation, especially those of manganese and sulfur [11-13].
The structure and chemistry of these nano-particles have been analyzed by electron diffraction patterns and EDX analysis.
The representative TEM micrographs for the dislocation structures in ferrite in Steel A and Steel B are shown in Fig. 6.
Aoyama, Design of modern highrise reinforced concrete structures (2001) 86

However, addition of large quantity GBFS has negative effect on the early strength of the concrete structures.
And, the structures of the hydration products at different curing periods are also varied.
While the hydrated structure of the OPC paste is relatively less compact.
And, the gypsum-lime-GBFS material exhibits a more compact and less porous hydrated structure than the OPC, thus, a better long-term strength gain.
Vol. 36(2008): p. 410 [12] Gao Huijie, Hou Jirui, Yue Xiang’an: Oilfield Chemistry.

In addition, most PIs are insoluble and infusible in their fully imidized form because of their rigid chain structure.
The structures of the CBDA based PI were characterized by FTIR spectra.
This might be due to the presence of the flexible ether structure and the bulky CF3 substitutes in the diamine, as well as alicyclic structure in the CBDA dianhydrides, which further hindered dense chain packing and reduced chain-chain interactions.
In CBDA based polyimide, the thermal stability of four-membered alicyclic structure is poor.
McGrath: Polyimides: materials, chemistry and characterization.