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These correspond to the changed of ZnS crystal structure with increasing of Fe content.
Decreasing the sizes of the particles indicate that Fe2+ ion occupied with the ZnS crystal structure.
In addition, further increase in the concentration of Fe2+ ion will change the ZnS structure.
Journal of solid state chemistry 181 (2008)1582-1589
[18] R.Saravanan .Growth and local structure analysis of ZnS nanoparticles.

The Ag2O cubic structure is supported by structural and optical features, with the primary diffraction occurring from the (002) plane.
[10] Clas PerssonI; Susanne Mirbt, Improved electronic structure and optical properties of sp-hybridized semiconductors using LDA+USIC, Braz.
Watson, Electronic structures of silver oxides, Physical Review B, 84 (2011) 115141 [30] Ravichandraraju.
Lad, Structure, conductivity, and optical absorption of Ag2−xO films, Thin Solid Films. 515 (2007) 8684–8688
Amaechi, In-Situ Deposition, Optical Characterization and Bandgap Shift of AgO Thin Films, Chemistry and Materials Research.8 (2015) 2224-3224

Graphene is composed of a single atomic layer of sp2 hybridized carbon atoms and it has a two dimensional (2D) structure [17].
Cheung Ng, Structure of graphene and its disorders: a review, Science and technology of advanced materials 19(2018) 613-648
Ma, Graphene oxide embedded in Bi2S3 nanosheets by hydrothermal method to enhance thermoelectric performance, Materials Chemistry and Physics 301 (2023) 127643
Reyes-Valderrama, Simple process and uncomplicated reduction of graphene oxide, Materials Chemistry and Physics 242 (2020) 122325
Afroj, 2D Material‐Based Wearable Energy Harvesting Textiles: A Review, Small Structures 5(2024) 2300282

Fabrication, structure and properties of a composite from aluminum matrix reinforced with carbon nanofibers. 
Aluminum foam sandwiches for lightweight structures. 
Problems of modeling and optimization of variable-hardness panels and structures made of layered composites. 
Journal of Materials Chemistry A, 4(14), 5216-5222. doi:10.1039/c6ta01472k [34] Frikha, M., Chaâri, N., Derbel, M.
Journal of Physics and Chemistry of Solids, 102, 151-156. doi:10.1016/j.jpcs.2016.11.004 [40] Patent for invention RU 2650731 "Method for studying the anisotropy of operational and technological properties of objects», G01N 27/02, 2018.

The surface of SAP showed non-porous surface structure with average size of 100mm.
FITR analysis confirms the chemistry of the superabsorbent polymer of acrylic acid base monomer.
The types of hardener used determines the structure of the cured resins.
Hence, Spectrum 1 results indicate that SAP is within the structure of the epoxy-hardener material or cured epoxy.
F Arndt, Cross-linking of poly(N-vinyl pyrrolidone) films by electron beam irradiation, Radiation Physics and Chemistry. 76(2007) 1324-1328

A microstructure (a) and fine structure (b and c) of the 32 mm thick test plate of steel after hot rolling.
Rolling of 32-mm thick plate with intermediate delays resulted in considerable refinement of the ferrite-pearlite structure: the ferrite grain size was 5.1µm (Fig. 4а).
Examination of the structure in thin foils revealed areas where the cementite plates were deformed and they appeared to have coagulated in some places (Fig.4b).
The proeutectoid ferrite had a sub-grain structure.
Microstructure (a) and fine structure (b and c) of the 32- mm thick test plate of steel after rolling with intermediate delays . 0.2 µm 0.2 µm 50 µm

Nakamura 6 1 3Bs Research Group-Biomaterials, Biodegradables and Biomimetics, Univ. of Minho, Campus de Gualtar, 4710-057 Braga, Portugal 2 Depart. of Polymer Engineering, University of Minho, Campus de Azurem, 4800-058 Guimarães, Portugal 3 Depart. of Material Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan 4 Depart. of Ceramic Engineering, School of Advanced Materials Engineering, Yonsei University, Seoul 120-749, Korea 5 Research Institute for Science and Technology, Chubu University, 1200 Matsumoto-cho, Kasugai-shi, Aichi 487-8501 Japan 6 Depart. of Orthopaedic Surgery, Faculty of Medicine, Kyoto University, Sakyo-ku, Kyoto 606-8506, Japan a belinha@dep.uminho.pt Keywords: Apatite structure, Polymer, Sulfonic groups (SO3H), Simulated body fluid (SBF), Zeta-potential, Abstract.

Ecofriendly flocculation of bentonite suspensions by two anionic polysaccharides: carboxylated chitosan (CC) and sodium carboxymethyl starch (CMS-Na) Bingbing Zhang1, a, Jing Bai1, b, Guangjin Yuan1, c, Yanyan Jia1, d, Zhexiang Han1, e, Zhiguo Zhao1, f, Mingyue Miao1, g and Haiquan Su1, h * 1School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China aemail: imuzhangbb@163.com, bemail: 1163480068@qq.com, cemail: 576319647@qq.com, demail: 1512533822@qq.com, eemail: 178190593@qq.com, femail: 185553717@qq.com, gemail: 18947106163@qq.com, hemail: haiquansu@yahoo.com Keywords: flocculation; bentonite; polysaccharides; carboxylated chitosan; sodium carboxymethyl starch Abstract.
In our previous work [3] we have discussed the effect of polymer structure and charge of the guar gum and its derivatives flocculants on the flocculation performance of bentonite suspensions, the polysaccharides structure (linear or branched) and charge (nonionic or cationic) on the flocculation rate and efficacy was systematically evaluated.
Scheme 1 Chemical structure of carboxylated chitosan (CC) and sodium carboxymethyl starch (CMS-Na).
The chemical structures of the natural organic flocculants used in this study are collected in Scheme 1.

The crystal structure of LZTO is a spinel structure and the detail was analyzed by Hernandez et al. and Câmara et al. [7,8].
Meanwhile, Fig. 1 shows the crystalline structure of LZTO.
Fig. 1 Crystal structure of Li2xZn2-3xTi1+xO4.
Câmara et al., International Journal of Quantum Chemistry Vol. 103, (2005) 580

Many works have been done on improving the individual layers in the SWM, especially feed spacers and membranes, in attempt to overcome these challenges. 3D printing has been identified as one of them by fabricating spacers and membranes with innovative structures.
These structures are often more complex and beyond the capabilities of their conventional fabrication methods [1-2].
Traditionally, feed spacers have a mesh like structure (Fig. 1a) made by welding polypropylene filaments together.
Theoretically, is should be impossible for 3D printing to accurately fabricate the pore structures of the membrane.
[8] Yanar, N.; Son, M.; Park, H.; Choi, H., "Bio-mimetically inspired 3D-printed honeycombed support (spacer) for the reduction of reverse solute flux and fouling of osmotic energy driven membranes." in Journal of Industrial and Engineering Chemistry 83 (2020), pp 343-350