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In this thesis, stable nano-MgO particles were prepared by precipitation process, using analytical pure MgCl2·6H2O and NH3·H2O as the raw materials, which MgCl2 as the source of magnesium and NH3·H2O as the precipitating agent.
Nano-MgO is a very prosperous multi-functional inorganic material extensively used in high -quality ceramics, electric insulating materials, cosmetics, paint, rubber filler, acid gas adsorbent and catalytic carrier because of the volume effect, the quantum size effect, the surface effect and the macroscopic quantum tunnel effect peculiar to nano-materials.
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As a result, adjusted materials for different applications were developed.
The joining of dissimilar materials by welding is procedurally limited.
Roll, Development of a Mechanical Joining Process for Automotive Body-In-White Production, International Journal of Material Forming, Volume 3, 2010, pp. 1059–1062
Lee, Parametric study on mechanical clinching process for joining aluminum alloy and high-strength steel sheets, Journal of Mechanical Science and Technology 24, 2010, pp. 123–126
Kato, Joining of high strength steel and aluminium alloy sheets by mechanical clinching with dies for control of metal flow, Journal of Materials Processing Technology, 2012, pp. 884–889

Introduction Nanostructured materials are objects of close scientific interest [1-3].
The data obtained for the selected model materials are shown in Figure 1.
For the selected materials, the sputtering coefficient is less than one.
Erimeev, Zone thermal recrystallization of thin layers from a discrete source, ARPN Journal of Engineering and Applied Sciences, 12 (2017) 1453-1457
Arustamyan, Microcrystalline and amorphous photovoltaic silicon materials Performance optimization, Materials Science Forum, 870 (2016) 74-82

Experiment design Raw-materials and mix proportion.
Raw-materials.
Therefore the adhesive property between surrounding rocks and grouting materials is better than that between the rebar and grouting materials in this test.
Study and application of FRP and RPC in civil engineering[J].JOURNAL OF RAILWAY SCIENCE AND ENGINEERING, 2005,2(4):54-61.
(In Chinese) [8] HUANG Z Y,QIAN F.Research on the comprehensive properties of early-strength and high-strength grouting materials based on DSP principle[J].Journal of Hunan University: Natural Sciences, 2009.36(8).

The effects of the neutral salt solution during the process mostly consist of thermal chemical reaction and continuing cooling effect of materials.
For metallic materials, the material removal mechanism of laser drilling is mostly thermal [1].
In SALD, there is an thermal chemical action between the fluid salt solution and materials to remove the recast layer.
Materials are removed mainly by laser during SALD, and the thermal chemical reaction is just an auxiliary effect to reduce the recast layer.
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All recent dyes under study have energy gaps as for semiconductor materials.
Alaboodi1, Design and Study of Electronic Structural and Corrosion Inhibitory Action of New π-Conjugated Materials for Medical and Solar Cells Applications, Indian Journal of Forensic Medicine & Toxicology, 13 (4) (2019) 908-914
Abbood, Electronic Structure of Vanadium Tetrachloride Di-Hydroxyl Metal Complex, Journal of Engineering and Applied Sciences, 13 (23) (2018) 9823-9830
Lakhlifi, New materials based on imidazo [4,5-b]pyridine derivatives candidates for optoelectronic device applications: Theoretical investigations, Journal of Chemical and Pharmaceutical Research, 6(11) (2014) 410-419
Bouachrine, DFT study of small compounds based on thiophene and benzo[1,2,5] thiadiazole for solar cells: correlation-structure/electronic properties, Journal of Materials and Environmental Sciences,.8(11) (2017) 3897-3905.

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Martins, End forming of thin-walled tubes, Journal of Materials Processing Technology. 177 (2006) 183-187
Martins, Cold expansion and reduction of thin-walled PVC tubes using a die, Journal of Materials Processing Technology. 209 (2009) 4229-4236
[4] Jialing Yang, Min Luo, Yunlong Hua, Guoxing Lu, Energy absorption of expansion tubes using a conical–cylindrical die: Experiments and numerical simulation, International Journal of Mechanical Sciences. 52 (2010) 716-725
[5] He Mao, Changjie Luo, Kai He, Ruxu Du, Numerical and experimental investigations on the expansion tube energy absorber, Applied Mechanics and Materials. 190-191 (2012) 115-120
[6] He Mao, Kai He, Changjie Luo, Ruxu Du, Axial compression and energy absorption characteristics of reduction tubes using a die under impact load, Advanced Materials Research. 712-715 (2013) 1519-1526

Materials Compositions of studied concrete mixtures are presented in table 1.
Materials and Structures, Vol. 37, pp. 597-607
Journal of Materials in Civil Engineering, Vol. 16, 221-229
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