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Dietl, etc. theoretically calculated the Curie temperature of several dilute magnetic semiconductor materials, the results showed that magnetic transition-metal ion doped ZnO could prepare diluted magnetic semiconductor with room temperature ferromagnetism [6].
However, the magnetic interaction mechanism in such a transition metal ion doped ZnO materials is still not very clear.
Chinese Journal of Luminescence, 29 (2008) 1031-1035
Journal of Changchun University of Science and Technology, 32 (2009) 565-576
Journal of Nanchang University, 32 (2008) 557-559

Ÿ Assume soil as elastic-plastic material for M-C criterion.
This paper simulates the effects of a double-tube parallel tunnel excavation on underground pipeline in different embedment, material properties and diameters conditions.
Materials on the impact of underground pipelines.
Acknowledgements The author would like to thank the financial support by the National Natural Science Foundation of China (Grant No. 51274051).
E-mail:guodl386402@163.com References [1] Renato E B, Kael R: submitted to Journal of Tunnel (1998) [2] Krizek R J, Mc Quade P V: submitted to Journal of the Geotechnical Engineering Division(1978) [3]Jihong Bi, Zuo Liu, Zhifeng Wang: submitted to Journal of Rock and Soil Mechanics (2006) [4] Kai Shu, Zhengyu Lei, Shuo hua Zhou: submitted to Journal of Chinese Journal of Underground Space and Engineering (2008) [5] Keshuan Ma, Lieyun Ding, etc.: submitted to Journal of Journal of Hua zhong University of Science and Technology (2008) [6] Zhenghua Jing, etc.: submitted to Journal of Modern tunneling Technology (2003)

Arum, Effectiveness of Rice Husk and Sugarcane Bagasse Ashes Blended Cement in Improving Properties of Concrete, Journal of Materials Science and Chemical Engineering, 11 (2023) 1-19
Materials, 12 (2022) 2645-2656
Emerging Materials Research, 1 (2022) 6-15
Davidovits, Geopolymers: Inorganic Polymeric New Materials, Journal of Thermal Analysis, 37 (1991), 1633-1656
Cheng, A comprehensive review, Journal of Traffic and Transportation Engineering, Advances in geopolymer materials, 1 (2021) 1-12.

References [1] Wrobel A., Placzek M., Buchacz A., Majzner M., Study of mechanical properties and computer simulation of composite materials reinforced by metal, International Journal of Materials & Product Technology 50/3-4 (2015) 259-275
[4] Placzek M., Wrobel A., Baier A., Computer-aided strength analysis of the modernized freight wagon, IOP Conference Series-Materials Science and Engineering 95 (2015) Art.
[10] Placzek M., Modelling and investigation of a piezo composite actuator application, International Journal of Materials & Product Technology 50/3-4 (2015) 244-258
Series: Materials Science and Engineering 95 (2015) 012099
Series: Materials Science and Engineering 95 (2015) 012102

Set 1, 2 and 3 in Table 1 are for investigating the spacing blocks of different materials (iron and aluminum).
The relative permeabilities of all materials [6, 7] are as shown in Table 2, where the coercive force of NdFeB permanent magnet is A/m [8].
Electromagnetic properties used for the different materials.
Journal of Mechanical Science and Technology, Vol. 25 (2011), p. 117-124
Materials & Design, Vol. 110 (2016), p. 685-692

This paper assumes that the low carbon building materials of ecological city construction in a certain city are n kinds of materials, and they are considered as one of selection items in the selection of low carbon building material for the ecological city construction [11,12].
shows the consumption of other building materials.
Journal of Tianjin Normal University (social science edition), 2012(3): 112-114
Journal of Shandong Social Science, 2011(12): 201-203
The economic journal, 2011 (10): 1101-1106

Journal of Materials Research and Technology 2021, 13:2325-35
International Journal of Polymer Science 2018, 2018:8190190
Asian Journal of Materials Science 2009,1:7
Materials, 2023
International Journal of Minerals, Metallurgy, and Materials 2017, 24:462-72

Fig.1 The environmental effect of mine waste rock pile Materials and Methods The materials used in experiment come from the mine waste rock pile located in Hai Zhou mine area, which is shown in Fig.2 (by Google Earth).
Journal of Anhui University of Science and Technology (Natural Science). 2004, Vol.24(s):10-15
Journal of China Coal Society, 2006,Vol.31, No.6:808-812
Journal of Safety and Environment, Vol.6, No.2: 19-22
Journal of Earth Sciences and Environment. 2008, Vol.30, No.2:192-196.

Confirmed by XRD and SEM measurement, the crystallinity and smooth surface morphology show its potential in fabricating electronic materials.
Shium:Materials Chemistry and Physics Vol 78(2003), p.111-115
Hosono: Materials Research Bulletin Vol.37 ( 2002),p. 2401-2406 [5]T.
Vance: Chemistry and Materials Science Vol.15(2004),p.635-644 [6]N.
Hanawa: Journal of Biomedical Materials Research Vol. 82A( 2007), p. 304-315 [7] F.

Elena Gordo Odériz ORCID 0000-0002-2869-1363 Universidad Carlos III de Madrid, Materials Science and Engineering Department; Avenida de la Universidad 30, Leganes, Madrid, 28911, Spain Dear Сolleagues, Let me present the first issue of the new interdisciplinary journal "Engineering Innovations" to your attention.
The journal was established as an open-access periodical.
The development of engineering sciences is now a diverse and multi-connected dynamic process.
It is worth recalling, for example, how the emergence and progress in the study of nanostructures in materials science gave an impetus to the rapid creation of new methods and technical means of research.
Further functional and structural materials have emerged, nanotechnologies have developed - technologies operating with materials and physicochemical processes at the nano level.