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Chen 4,f 1 Department of Environmental Engineering, National Cheng Kung University, Tainan City, 701 Taiwan 2 Sustainable Environment Research Center, National Cheng Kung University, Tainan City, 701 Taiwan 3 Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung City 81164, Taiwan 4Department of Chemistry, National Cheng Kung University., Tainan City, 701 Taiwan a talentgahow@hotmail.com, bwanghp@mail.ncku.edu.tw, c skyleococo@yahoo.com.tw, d george@ccms.nkfust.edu.tw, ep5696402@mail.ncku.edu.tw, f l3893105@mail.ncku.edu.tw Keywords: Thin film; gas sensor; ethanol; XANES; EXAFS Abstract.
Nature of the sensing species in the nanosize Fe-doped ZnO (FeZnO) thin films has also been studied by in situ extended X-ray absorption fine structure (EXAFS) spectroscopy.
Nature of the sensing species in the Fe-doped ZnO (ZnO-Fe) thin films was also studied by in situ extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) spectroscopies.
Chemical structure of the ZnO-Fe thin films was determined by X-ray powder diffraction (XRD) (D8 advance, Bruker) with a Cu Kα radiation (λ=1.542 Å).

In this paper, we use the concept of fractal theory combined with the measurement of specific surface area and pore structure to make the evaluation of char surface structure.
After analyzing the shape of the adsorption isotherms, the pore structure parameter was gained.
This indicates that the pore structure of char is relatively stable during the release of the volatile.
Effect of pyrolysis temperature on porous structure of anthracite chars produced at high temperatures[J].
Journal of Fuel Chemistry and Technology, 2007, 35(2): 155~159.

Finally, WPS was established conformance to standards of TPP structure toward to building Nuclear Power Plant in Vietnam. 1.
When welding stainless steel (SS 304L) to carbon steel (A 106B), it is critical to pay attention to chemistry, mechanical properties and corrosion resistance to avoid potential trouble.
The goal is to create a final weld deposit whose chemistry is compatible with each side of the weld joint.
Attaining a mechanical match is a function of having the correct chemistry, and also a reflection of the heat created by the welding procedure. 
The microstructure of the base metal A106 as shown in Fig. 5a is similar to the structure of annealed hypoeutectoid carbon steel, that consists of ferrite phase in white and pearlite structure in dark.

Analysis of possibility of using geopolymers in rehabilitation of reinforced concrete structures Ing.
Introduction Concrete structures are during their exploitation exposed to environmental effects which – owing to their chemical action – are corrosive and are causing degradation of these structures.
One of the necessary steps to ensure adequate service life of structures is their continuous maintenance and in the case of once damaged structures, their rehabilitation.
This class includes repair materials employable in repairing structures with a static function.
The use of Geopolymers in Rehabilitation of Reinforced Concrete structures.

XRD studies exhibit the lines from the tetragonal structure (PDF 41-1107) of PdO compound and from the cubic structure (PDF 46-1043) of Pd metallic.
Microwave irradiation, as a fast, simple, uniform and energy efficient heating method has been widely used in chemistry [30, 31].
Xerogel XRD pattern shows A labeled peaks corresponding to the tetragonal structure (PDF 41-1107) of PdO compound, and the B labeled peaks are related to the face centered cubic structure (FCC) (PDF 46-1043) of Pd metal.
Zarbin, A Simple Two-Phase Route to Silver Nanoparticles/Polyaniline Structures J.
Fendler, Atomic and molecular clusters in membrane mimetic chemistry, Chem.

This work describes the development of Cu-Fe alloys with a nanocrystalline structure using mechanosynthesis.
Introduction Nanoscale alloys are the subject of extensive research due to their potential applications in chemistry, physics, and biology.
Figures 3.c and 3.d did not show any discernible lamellar structures.
Silva, Microstructure and corrosion behavior of as-quenched CuAl-based alloys, Materials Chemistry and Physics Volume 282, 15 April 2022, 125945
Materials Chemistry and Physics 83.1 (2004): 129- 134

The local ordered structures and the lateral substituents played an important role in shape memory effects.
The chemical structures of the liquid crystalline epoxy monomers.
These may be explained from their chemical structures.
The DDM has a rigid structure, resulting large rubbery modulus of LC samples.
The shape-memory LC epoxy resin may be used in deployable space structures or other high-performances equipments as composite materials in the near future.

The structure of the samples were characterized by X-ray diffraction.
The crystal structures of Li4-xKxTi5O12 (x=0.02, 0.04, 0.06) were characterized by X-raydiffraction (XRD, Rigaku D/MAX-RC) with Cu Kα radiation(λ = 1.5405 Å, 45.0 kV,50.0 mA).
Results and discussion Crystalline structure analysis.
All the diffraction peaks could be indexed as spinel structure (cubic phase, space group Fd 3m) were in accordance with JCPDS card No-26-1198 without any impurity, indicating that the material exhibited pure phase of Li4Ti5O12 with a spinel structure.
Physics and Chemistry of Solids Vol:69 (2008), P.1454 [7] Thackeray MM.

The signal at 4.91-4.95 are characteristic of structure II-A.
The 1H-NMR spectrum shown in Fig.3 indicates the structure of B-AA.
This result can be explained by competition between formation of oxazine ring and structure II-A and B.
Edelmann., Coordination Chemistry Reviews 249; 1283–1293 (2005) [15].
Ishida1., Journal of polymer science Part A: POLYMER CHEMISTRY, 49, 4335–4342 (2011)

Effect of the Calcination Temperature on Ni2P/Tio2-Al2O3 Catalyst Structure and Catalytic Activity for Hydrodesulfurization Feng Li1,a, Zai-Shun.
The effects of calcination temperature on catalyst structure and HDS activity were studied.
To protect the metal phosphide structures, the prepared Ni2P is passivated in O2/N2 mixture (0.5 vol.% of O2 ) with flow rate of 20 mL/min for 2 h.
The calcination temperature affects interactions between active metal components and the support, the state of the active metals, and the mesoporous structure of the catalyst.
Sintering may occur at excessive high calcination temperatures, which would destroy the mesoporous structure and decrease the surface area of the catalyst.