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This study revealed that nano structure yttrium oxide was an effective adsorbent for removal of lead ions from aqueous solutions.
Weand, Process Chemistry for Water and Wastewater Treatment, Prentice-Hall Inc, (1999), pp. 307–365, 457–478
Gao, Synthesis of Y2O3 with Nestlike Structures, J.

It has been established experimentally that the obtained samples of additive products from powders, obtained by electro-erosive dispersion of cobalt-chrome wastes in alcohol, have a microcrystalline structure with a porosity of less than 0,78%.
Conclusion It has been established experimentally that the obtained samples of additive products from powders obtained by electroerosive dispersion of cobalt-chrome wastes in alcohol have a microcrystalline structure with a porosity of less than 0.78%.
Topolyansky, Physics and chemistry of materials processing, 2011, pp.32-35

Influence of Fly Ash on Crack Resistance of Mass Concrete Jun Wang1,2,a, Shuhua Liu3,b and Wen Yang2,c 1 Key Laboratory for Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology; Wuhan 430070, P.R.China 2 China Construction Ready Mixed Concrete Company Limited, Wuhan Hubei 430074, P.R.China 3 State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, 430072, P.R.China a wjjob72@126.com, bshliu-job@163.com, c youngsun8228@163.com Keywords: Mass Concrete; Fly Ash; Crack Resistance; Mix Proportion Abstract: Crack will not only do harm to structure of concrete but also destroy durability of concrete project.
Reducing adiabatic temperature rising will drop temperature difference between interior and exterior of concrete structure and reduce temperature stress of concrete, which will benefit to improving early crack resistance and preventing exterior and trans-crack of concrete.
Finally, effect of micro-particle of fly ash brings densification potential energy, which reduce proportion of harmful pore in harden concrete, effectively increase density; the hydration products as framework from chemistry can strengthen felt strength, which improves crack resistance of mass concrete.

The phase structure, optical properties，microstructure and surface properties of the coatings were characterized by using XRD, FT-IR, UV-vis and SEM.
Phase structure, microstructure, surface properties and optical properties of the coatings were characterized using X-ray diffractometry (XRD), scanning electron microscopy (SEM), FT-IR spectrometer and UV-vis spectrophometer.
Scherer: Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing (Academic Press, San Diego 1990)

On applying a continuous square wave electric field, the upper plate of the cell can be driven to move continuously, and the moving state can be related to the structure of the cell.
This is the result of adjustment by the viscoelastic force in the cell after the electric field was released and has nothing to do with the structure of the cell.
Liang, The influenced of carbon fiber orientation on the mechanical and tri-biological behavior of carbon fiber/LCP composites, Materials Chemistry and Physics, 102(2007), 187-194 [6] Y.

The response surface showed the best combination of factor configurations to achieve the best response and SEM analysis in thermoplastic cassava starch biofilms in both the best and the worst elasticity conditions was performed to visualize the standard of the structure of the biopolymeric matrix in both conditions.
This result is evidenced in the SEM by the standard structure of the cassava starch film in Fig. 3a reflects a lack of homogeneity along the surface of the films due mainly to the absence of the modified clay and presence of glycerol in higher concentration.
Hellal: Journal of Industrial and Engineering Chemistry Vol. 20 (2014), p. 2256

Mountainous environment makes the wireless sensor network (WSN) data collection applications remain a challenging domain, as the detection region may present a three-dimensional structure and the radio propagation characteristics are still looking forward to further research.
The detection region presents a three-dimensional structure and it changes from regular two-dimensional graphics to irregular sets of 3D points, curves, surfaces and even polyhedrons.
Sabri, et al., “Path loss analysis of WSN wave propagation in vegetation,” Proc. 2013 International Conference on Science and Engineering in Mathematics, Chemistry and Physics, ScieTech 2013, January 24, 2013 - January 25, 2013, Institute of Physics Publishing, 2013

The features and structures of the composite coating materials are studied and analyzed by the Scanning electron microscope (SEM) and EDAX measurement.
The features and structures of the composite coating materials are studied and analyzed by SEM and EDAX energy spectrum.
Material Chemistry and Physics, Vol.80, (2003),p.725-730

Time-dependent failure assessment diagram (TDFAD) is developed that covers major failure mechanisms of defective high temperature structures.
In British Standard BS 5500 and ASME Section VIII Div.1, the temperatures at which time dependent properties must be considered are tabulated for generic material chemistry.
Time-dependent failure of weldments In welded structures, the cracks or defects are generally inevitable.
Assessment procedure for the high temperature response of structures (British Energy Generation Ltd., 2003) [3] D.
Tu and Z.D.Wang: Safety assessment method for defective structures in creep regime, Eds.

Consequently, the cross-section and carrying capacity of the structure decrease, which is followed by the break-down or failure of the concrete structure.
LDHs can be intercalated with anions, with the original interlayer anions being replaced by some kinds of new functional anions, which leads to the fabulous LDHs with intercalated structure.
The unique layered structure and the changeability of interlayered anions lay the foundation for its wide application in catalysis, electrochemical, separation technology and medicine.
As it is shown in this figure, the porosity in O2 is less than that in C0 and pores in large size are fewer in O2 than in C0, from which we can see clearly that O2 optimizes the pore structure of paste samples.
The preparation of LDHs intercalated with dihydrogen phosphate and its performance of selective absorption of the infrared, Journal of inorganic chemistry, 2010, 26 (6) : 970-976.