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Comprehensive research and outlook of loose solid materials on the gully system under hydrodynamic conditions Shun Yang1, 3, a, Guoqiang Ou1, 2, *, Xianjun Ji1, 3, b, Jun Wang1, 3, c 1Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 2Key Laboratory of Mountain Hazards and Earth Surface Process, CAS, Chengdu 3Graduate University of Chinese Academy of Sciences, Beijing ayangshun09@126.com, b jifeng988@163.com, c junwang.paul@gmail.com *Corresponding author: ougq@imde.ac.cn Keywords: Hydrodynamic conditions, solid materials, flume experiments, prospects.
The paper reviewed the research and progress of solid materials on the gully system in the world and pointed out the shortage of it.
Research of Solid Materials under Hydrodynamic Effects Abundant of solid loose materials, enough water and steepen terrain condition constitute the three requirements of debris flow formation.
T.Takahashi: Journal of the Hydraulics Division, Vol.104(8),1978,p.1153-1169 [39].
Jon.J.Major: The Journal of Geology.

They are the indispensable basic materials of the development of modern industry, national defense and science and technology, and they are also the important material basis for the development of new technology revolution on.
So, with the continuous development of China's coal industry and materials science, they have been widely used in the coal mine.
Journal of FRP/composite materials, 2000, (6), 39-40 [5] Xiantao Zeng.
Journal of FRP/composite materials, 2006, (1) : 42 ~ 44
Beijing Science Press. 2002.32-37.

All materials use cement for 42.5R Portland cement.
Journal of Shaanxi University of Science and Technology(Natural Science Edition), 2009(04): p.48-51
Journal Of Materials Science Letters, 2002. 21: p. 485-487
Spanish Journal of Agricultural Research, 2007. 5(4): p. 579-586
Theory and experimental researches on property reform of cement-based materials by supercritical carbon dioxide [D].

Acknowledgements The research for this project was supported by the National Natural Science Foundation of China, for the Study on the Standard Test Method of Materials and Masonry Based on Raw-soil (51478043).
J China Civil Engineering Journal, 48:81-87
Journal of Materials in Civil Engineering. 24(6):775–782 [14] MEHTA P K，MONTEIRO P J M.Concrete microstructure properties and materials.Third Edition,2005:49-50 [15] Joshua B.
J.USA:Journal of Materials in Civil Engineering.(2):85-87
Lu, Yi-hong.Wang, et al.Experimental Strength of Earth-Based Construction Materials in Different Regions of China.J.Advances in Materials Science and Engineering.10,9.( 2019)

Fig. 3 shows the XRD patterns of the composite materials and the single materials.
Microwave absorbing materials, Inorganic Materials, 37(2): 93-98
Journal of Functional Materials, 2006, 6 (37) : 877-879
Ordnance Material Science and Engineering, 2002, 3 : 86-89
Journal of Environmental Sciences 2011, 23(Supplement) S74–S77.

Rocks of various deposits of the Volgograd region were used as the materials under study, which are used as raw materials for the building materials production.
Lempert, Modern Condition of Dose Loads from Construction Materials and Main Sources of Ionizing Impact on the Population of the Volgograd Region, Materials and Technologies in Construction and Architecture, Materials Science Forum. 931 (2018) 1007-1012
Korotkov, Intelligent multi-agent systems generation, In: World Applied Sciences Journal. 24 (24) (2013) 98-104
Mikhneva, Effect of Thermal Treatment of Building Materials on Natural Radionuclides Effective Specific Activity, Materials Science Forum. 945 (2019) 30-35
Kamaev, Automatic multi-steps forecasting method for multi seasonal time series based on symbolic aggregate approximation and grid search approaches, In: Journal of Fundamental and Applied Sciences. 8 (3S) (2016) 2429-2441

Thus, these composite materials can be processed by machining, extrusion and rolling.
MgB2 dispersed in Al matrix composite materials was made by 3DPC method.
No remarkable defects are observed in these composite materials.
%In is the highest among MgB2/Al-In composite materials.
Zhao, Journal of applied physics, volume91.number10, 15 (2002) 250

Introduction One challenge of materials development is increase the production of nanoscale materials.
These materials are the center of several researches due to the potential application in materials field. [[] M.
Botta F and R.Tomasi: Journal of Materials Processing Technology Vol. 6838 (2003), p. 1. ,[] R.
Sepelák: Journal of Materials Science Vol. 29 (16-17) (2004), p. 5487. .
Tomasi: Materials Science Forum Vol. 14 (2002), p. 65. ], using the width of the Bragg peak profiles at half of the maximum peak intensity.

Sintering Process of Mullite- Corundum Insulation Material with Nano Crystals Daoyuan Yanga, Juan Wub, Guanghui Weic, Kai Zhud, Huiyu Yuane, Jingwei Liuf and Bo Chongg School of Materials Science & Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, China ayangdaoyuan@zzu.edu.cn, bwujuan031125@163.com, cweiguanghui2005@163.com ,dzhukailj@163.com, eyuanhuiyu01@qq.com, fzghnliujie@163.com, gchongbo1234@126.com Keywords: Mullite- corundum insulation material, Gel-casting process, Nano crystals, Mullitization temperature, Glass phase Abstract.
Although the starting materials are raw materials, there is no detected harmful impurity generated.
Materials on the pore wall have dense microstructure [Fig. 5b], crystals are developed completely, and the grain size is about 2μm.
Schreuer, et al: Journal of the American Ceramic Society.
Journal of Materials Science and Engineering, Vol.22 (2004), p.373-375

Introduction As people to pay more and more attention to environmental protection and saving energy, long-lasting materials as a photo-energy storage materials has become a new hotspot of a luminescent materials[1-4].
Synthesis of long afterglow materials mainly used in high temperature solid phase sintering process.
Experiment Raw Materials In the experiments raw materials used is Teos, magnesium nitrate, strontium nitrate, boric acid, ethanol, nitric acid, europia and dysprosium oxide,all is pure for analysis .
Combustion method fast synthesis strontium aluminic acid: europium and luminescent performance. journal of fudan (natural science journal) Vol. 36(1997),p. 65 [7] Ding Hong, Zhang Jing-xian, Liu Ying-liang et al.
Synthesis of nanometer long afterglow luminescent materials by combustion method. journal of Jinan University (natural sciences version) Vol. 23 (2002),p. 70 [8] Poort S,Reijnhoudt H,Van der Kuip H, et al.