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The yield of biodiesel reaches over 98% in one hour, which can be ascribed to the structure of porous CaO microsphere.
SKLEAC2010011) of State Key Laboratory of Electroanalytical Chemistry in China, the Scientific and Technological Key Project (No. 102102310335) of Henan Province in China, and the Projects (Nos. 30700348 and 30700349) Sponsored by the Scientific Research Foundation for the Doctors in Henan Agricultural University in China.

Ball milling is known to be less effective to complex hydrides, such as NaBH4 [7], however a role of ball milling in the creation of site vacancies in the structure cannot be excluded.
Egorenko: Russian Journal of Inorganic Chemistry, 13 (1969) p. 341-3

Journal of Physical Chemistry B, 2004. 108(52): p. 19912-19916. 3.
N'Diaye, A.T., et al., Structure of epitaxial graphene on Ir(111).
Scuseria, Electronic Structure and Stability of Semiconducting Graphene Nanoribbons.
McCann, E., Asymmetry gap in the electronic band structure of bilayer graphene.
Ohta, T., et al., Controlling the Electronic Structure of Bilayer Graphene.

The HA-SH/HA-MA hydrogel has porous structure, high swelling ratio and Controlled degradation rate.
The hydrogel macromolecular network structure ensures the transport of nutrients and the exchange of gases, and its network structure is similar to extracellular matrix (ECM), which can be used to carry antibacterial drugs [8], cell growth factor [9] to promote wound healing.
Compared to electrospun membranes, hydrogels provide more structural forms such as films, sponges and moisturizing 3D structure, hydrogels exhibit excellent swelling ability which cannot be achieved by the spinning film types of dressing.
The structures of all above gel precursor and photocuring hydrogel were characterized by and compared with a 1H NMR experiment and FT-IR spectroscopy. 1H NMR spectra was recorded on a AVANCE Ⅲ400 MHz NMR spectrometer.
Alginate derivatization: a review of chemistry, properties and applications.

Khan 1,b 1 Department of Chemistry and BiochemistryDuquesne University, Pittsburgh, PA 15282, U.S.A b khan@duq.edu Abstract.
X-ray diffraction (XRD) measurements were carried out to characterize the structure of n-TiO2 and CM-n-TiO2 samples.
The peaks of these XRD spectra of both CM-n-TiO2 photoelectrodes (S2 and S3) are consistent with the rutile structure.
This indicates the marked influence of carbon modification on the structure of n-TiO2.
Hashimoto, Chemistry Letters 32 (2003) 72

Powder X-ray diffraction (XRD) was used to evaluate the crystal structure of the obtained powder materials.
All materials indexed the spinel structure (space group Fd3m) (JCPDS # 71-0852)[21][26].
The sample also has a hexagonal structure, and there is no impurity phase [18].
A double split peak was observed between (108)/(110) and (006)/(102), where both these peaks indicate that this sample has a very high crystal structure with a layered structure.
Kalaiselvi, “Various aspects of LiNiO2 chemistry: A review,” Sci.

Structure of xylem The structure of wood xylem consists of cells.
Lignin is totally amorphous in structure.
Stenius, Forest Products Chemistry, Paper Making Science and Technology, Book 3, Fapet Oy, Helsinki, Finland, 2000. 8.
Fengel and G, Wegener, Wood - Chemistry, Ultrastructure, Reactions, Walter de Gruyter, New York, NY, USA, 1989. 11.
Goring, Cellulose Chemistry and Technology 1, 277, 1967. 42.

The absorption of liquids such as Arabica Gayo coffee may aggravate the surface structure of self-cured acrylic resins due to their acid content.
Along with the use of denture bases in everyday life, the surface structure of self-cured acrylic resin can be influenced by the consumption of acid-containing beverages such as coffee [5].
Based on the description above, we know acrylic resin structure can be affected after immersed in coffee.
Research by Constantinescu [13] also showed the effect of a decrease in pH (acid) on the surface structure of acrylic resin that become more rough and monomers levels increased in saliva.
"http://www.ammrf.org.au/myscope/sem/practice/principles/troubleshooting.php" Accessed August 5, 2017 [27] Zhou W and Wang ZL 2006 Scanning microscopy for nanotechnology: techniques and applications New York: Springer 10-22, 28-9 [28] Clayden J, Greeves N, Warren S and Wothers P 2012 Organic chemistry 2nd ed England: Oxford University Press 69 [29] Chlorogenic acid USA: National Center for Biotechnology Information.

Fig. 1: XRD pattern of BaAlSi5O2N7 The crystal structure of this SiAlON S-phase is shown in Fig. 2.
The whole TL glow curve is characteristic of microcrystalline structure of BaAlSi5O2N7.
Hintzen, Synthesis structure and luminescence properties of Eu2+ and Ce3+ activated BaYSi4N7, J.
Hintzen, Preparation structure and Photoluminescence properties of Eu2+ and Ce3+ doped SrYSi4N7, J.
Seilmeier, Luminescence in Eu2+ doped Ba2Si5N8: fluorescence, thermoluminescence, and upconversion, J. of Physics and Chemistry of Solids 61 (2000) 2001-2006

The deck is composed by a set of girders with a discontinuous slab simply supported by vertical structures.
Thus the effect of soil-structure interaction can be neglected.
(Eds.), Geopolymers: structures, processing, properties and industrial applications, Elsevier (2009)
[18] Sap2000 Computer and structures, Structural analysis program and reference manual (2013)
[19] EN 1998, Eurocode 8: design of structures for earthquake resistance – part 2, bridges