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., Starohájska 9/C, Trnava, SK-917 01, Slovak Republic 2Institute of Chemistry and Environmental Sciences, Faculty of Natural Sciences, University of Ss.
Their structure consists of three-dimensionally connected [SiO4] and [AlO4]- tetrahedra with alkaline cations compensating for the negative charge of the structure [21]. 
Geopolymers: Structures, Processing, Properties and Industrial Applications, Woodhead Publishing Limited, Cambridge, UK, 2009, pp. 401-420
Davidovits, Geopolymer Chemistry and Applications, 5th ed., Institut Géopolymère, Geopolymer Institute, Saint-Quentin, France, 2020
Geopolymers: Structures, Processing, Properties and Industrial Applications, Woodhead Publishing Limited, Cambridge, UK, 2009, pp. 421-440

The CH stretching bands (1500-1300 cm−1) and a C-O stretching band at 1030 cm−1 are attributed to the presence of cellulosic structure.
It represents the components of lignin and hemicellulose structures.
Properties Banana pseudostem pulp sheet a corn sheath fibers b Wheat straw c Grammage [g/m2] 60 66.052 60 Tensile strength [KN/m] 6.3 0.2576 n.a Breaking length [m] 5250.0 n.a n.a Tensile index [Nm/g] 78.75 3.9 15.6-27.2 Tearing resistance [m N] 156 n.a n.a Tear factor [mNm2 /g] 195 95 n.a Tear index [mN2 /g] 19.1 2.212 2.0-2.8 The mechanical and strength analysis of paper produced reflects the intrinsic chemistry, morphology, and structure of the individual fibers as well as the network structure of the paper.
Methods of wood chemistry, 1(2)(1967)

The characteristics, the pavement structures and materials are analyzed.
Structures and Materials.
Structure types of traditional asphalt pavement and PAP As shown in Fig. 1, the structure of PAP seems more complicated than the traditional asphalt pavement.
Results suggest that the type of single structure course, materials, aggregate gradation, the dirt degree of aggregates, and the combinations of structure courses have much influence on the water quality for the whole PAP structure.
Tao, Effect of solution chemistry on floatability of magnesite and dolomite.

The nutrient structure has substantially changed over a period of 16 years.
Fig.4 The variation of SiO3-Si content Nutrient Structure Characteristics.
Si:N:P is an important marine chemistry and marine biology parameter in seawater, becoming the key indicator of phytoplankton limiting factors.
Because the changes of nutrient structure will directly affect the phytoplankton community structure, and thus cause changes in ecosystem structure and function of the whole system.
The nutrient structure in summer changed in 16 years.

Moreover, the use of fillers also makes it possible to expediently influence the organization of the pressed composites’ structure.
Hydrate neoplasms, located in defects in the structure of the material, will help increasing its strength and water resistance.
The structure of the pressed material from the hardened modified gypsum binder can also be characterized as medium and large pore (), and by pore uniformity - as a structure of medium uniformity ().
Modifiers have a positive effect on the process of organizing the structure of the material and contribute to the formation of shielding protective films of insoluble calcium phosphate on the surface of the elements of its crystallization structure.
Int. scientific-practical conf. in chemistry and chemical education “Mendeleev Readings 2016” (February 26, 2016).

Ceramic functional coating is frequently applied to the structure material of turbine blades, and it is very important to investigate its properties during thermal shock, thermal cycle and thermo-mechanical fatigue.
Introduction Ceramic coatings are applied to the structures that suffer from high heat exposure such as turbine blades.
Acknowledgement The present research is supported in part by a Grant for 21st Century COE Program “Human-Friendly Materials based on Chemistry” from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.

Agglomeration Eliminating Antimony Doped Tin Oxide (ATO) Nanoparticles by Different Drying Methods Zili Liu1, 2, a, Qianwen Dai1, 2, b , Shengzhou Chen1, 2, c and Zhe Guo1, d 1Department of Chemistry & Chemical Engineering, Guangzhou University, China, 510006 2Key Laboratory for Water Quality Security and Protection in Pearl River Delta, Ministry of Education and Guangdong Province, China, 510006 a,cgzdxlzl@163.com, bamydai1989@126.com, dmomowuyan87@163.com Keywords: ATO; Nanoparticles; Agglomeration; Azeotropic distillation.
The result shows that ATO nanopaticles with tetragonal rutile phase structure are all well crystallized after the drying processes above, and the average grain size is between 29.30 nm and 71.52 nm.
Then during the range of 400℃ ~ 600℃, TG curve changes a little, which indicates that the amorphous powder begins to transform into the crystalline structure by gradual condensation reaction of hydroxides.

Mellia Harumia, Dian Hana Saraswatib, Triyono Triyonoc, Sri Sudionod* Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Indonesia amellia.harumi@gmail.com, bhannasaras14@gmail.com, ctriyn102@ugm.ac.id, dssudiono@ugm.ac.id Keywords: Mangosteen rind, Au(III), adsorption, isotherm, thermodynamic Abstract.
Crystalline structure of mangosteen rind was analyzed by X-ray diffraction, while after interaction with Au(III) ions gave three characteristic peaks indicated Au(III) reduction into Au(0).
Infrared spectra of mangosteen rind (a) before Au(III) adsorption and (b) after Au(III) adsorption The crystalline structure of adsorbent before and after adsorption are shown in Fig. 5.

The chemical structures of PET hybrid materials were characterized by Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM).
Nanocomposites: synthesis, structure, properties and new application opportunities, Materials Research, 2009, 12(1): 1
Synthesis and Characterization of TiO2 Nanoparticles, Asian Journal of Chemistry, 2014, 26(3): 655

Lots of phases precipitated at grain boundaries, the distribution of precipitated phases are characterized by mesh-like structure.
For this reason choose the proper heat treatment process and reasonable operation can eliminate the uneven composition, stable material structure, ensure ni-based alloy material single austenitic organization, so as to ensure Ni-based alloy material playing excellent performance.
Was, Behavior of grain boundary chemistry and precipitates upon thermal treatment of controlled purity alloy.