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Ions and particles irradiation have shown to be able to influence the growth, dislocations or crystal defects in microstructure of most materials, and eventually could altered the mechanical and electrical properties of the materials [2-6].
In addition, it has been reported that collision of particles by irradiation or heavy ions would introduce columnar amorphous regions along the cascades of materials and become effectives pinning centers [8,9].
It was also reported that the strength of ceramics materials increases with decreasing porosity [12].
See, in: Proceedings of the International Workshop on New Trends in Science and Technology, edited by Z.B.
Asbullah: Journal of Nuclear and Related Technologies Vol. 9(2) (2012), p. 1 [4] Z.

District main physical and mechanical parameters of materials shown in Table 1, in which is the static elastic modulus.
Table 1 District materials are mainly mechanical parameters Material Compressive strength (MPa) Tensile strength (MPa) Elastic modulus (GPa) Density (kg/m3) Poisson's ratio A(I) RCC200 20.3 1.54 20.8 2408 0.167 A(II) RCC150 15.7 1.24 16.2 2448 0.167 A(III) CVC200 22.7 1.75 25.4 2400 0.167 Muddy siltstone 14.48 - 6.79 2530 0.27 Conglomerate 20.54 - 2.11 2520 0.25 Sandstone 34.76 - 12.9 2540 0.23 C15 18.2 1.40 21.2 2400 0.167 C20 22.7 1.75 25.4 2400 0.167 C25 26.6 2.15 29.9 2400 0.167 The finite element mesh.
In the case of empty reservoir, most of the regions are in compression, due to the compressive strength of concrete materials be of better performance, therefore that the dam heel Department compressive stress is also much smaller than the design value of compressive strength of concrete will not harm dam.
Sichuan Building Science, Vol.1(2006), p.43-45, in Chinese
Engineering Journal of Wuhan University, Vol.6(2003), p.22-26, in Chinese

Materials and Method Materials.
Ramyar, Effect of cement C3A content on properties of cementitious systems containing high-range water-reducing admixture, Journal of Materials in Civil Engineering. 29 (2017) 04017066 [3] A.
Construction and Building Materials, 312, (2021), 125366
Science and technology of concrete admixtures.
Materials. 132, (2017), 112–123

Cole, Materials Science Forum, Vol. 419-422(2003), p. 43 [2] T.
Luo, (The Minerals, Metals and Materials Society,Warrendale, PA, 2004), p. 79 [4] R.Y.
Davies, Journal of Mater.
Beals (The Minerals, Metals and Materials Society,Warrendale, PA, 2006), p. 333 [6] Y.X.
Beals (The Minerals, Metals and Materials Society,Warrendale, PA, 2006), p. 245 [7] M.J.

Watari: Semisolid strip casting using a vertical type twin roll caster, Materials Science Forum Vol. 426 (2003), p. 477-482 [18] T.
Ikawa: A vertical type twin roll caster for aluminum alloy strip, Journal of Materials Processing and Technology Vol. 140 (2003) ,p. 610-615 [19] T.
Kumai: A high speed twin roll caster for aluminum alloy thin strip, Transaction of the Materials　Research Society of Japan Vol. 29 (2004), p. 1823-1828 [20] T.
Watari: A single roll caster for aluminum alloy strip, Advanced Materials ResearchVol. 382 (2012), p. 368-371 [21] T.Haga，K.Akitsu，K.Kamakura，S.Kumai，H.Watari: Single roll caster equipped with a scraper, Key Engineering Materials Vols. 504-506 (2012), p. 1243-1248 [22] T.

In conclusion, we find evidence suggesting that China should clearly understand the contingency and stage characteristics of affordable housing development, meanwhile establish all-round and whole process support policies and measures, and strengthen renovation of science and technologies.
Therefore, to achieve good goals and speed up construction of affordable housing, to keep sustained and healthy development in whole process, we should establish cooperative mechanism along with ministry of housing and urban-rural development (MOHURD), ministry of human resources and social security(MOHRSS), national development and reform commission(NDRC), ministry of finance(MOF), ministry of science and technology(MOST) led by the State Council, and build top-down, start-end, all-around and whole process policies and measures to support housing construction.
Strengthen renovation of science and technologies to change from quantity to quality.
To improve affordable housing quality also relies on the application of new material, craftwork and technology.
At the technical level, series of mature and economical green technology and measures such as natural lighting and ventilation design, rainwater recycling and grey water utilization technology, as well as the application of energy-saving devices and recycled building materials are gradually applied to affordable housing projects to effectively reduce the cost of both initial construction and later period operation, ensuring greater economic, environmental and social benefits of affordable housing construction.

Boron mud foam glass is a kind of soilless cultivation matrix with the main raw materials of boron mud and broken glass.
Boron mud, glass powders, fluxes, foaming agents were used as the main raw materials to prepare foam glass.
The raw materials were mixed uniformly after ball-milling for 2 h, they were heated in a resistance furnace.
Thermal Science.
Urik: INDIAN JOURNAL OF AGRICULTURAL SCIENCES.

Different types of models are available to represent machining processes: regression models: derived from experiments or finite-element simulations; and physics-based models: derived through understanding the science behind the process[1].
The workpiece material-willbe taken into account itshardnessand the machinability of the material, as well as the alloying elements and their percentage.
Calculating cutting forces requires an adequate constitutive material model (relationship of stress – to – strain) for the workpiece material[5].
Any of the methods require knowledge of the material behavior [6].
Khani - Optimization of Machining Parameters to Minimize Tool Deflection in the End Milling Operation Using Genetic Algorithm, World Applied Sciences Journal 6 (1): 64-69, 2009, ISSN 1818-4952 [8] Claudiu Florinel Bisu - Model dinamic tridimensional aplicabil la frezare cu integrarea momentelor rezultate din procesul de aschiere, CNCSIS-UEFISCSUproject PNII-RU, code 194/2010

Experimental Section Materials.
Both materials were used without further purification.
Stamm, Priciples of wood science and technology II : Wood based materials, Spinger-Verlag, Berlin, Germany, 2012
Prayitno, Manufacture and properties of citric acid-bonded particleboard made from bamboo materials, Eur.
Salamone, Eds., Polymeric Materials Encyclopedia, CRC Press, Inc

Grinding balls of normal and high hardness are usually used in ball mills for grinding relatively soft materials (ore, coal and some building materials) [4, 5].
Yongsheng, Research on prediction model of ore grinding particle size distribution, Journal of Dispersion Science and Technology. 41(4) (2020) 537-546
Franek, Data processing of measured surface temperatures of continuously cast billets and blooms to verify the numerical solidification model, 29th International Conference on Metallurgy and Materials, Brno, Czech Republic, 2020, pp. 80-85
Uskov, Analyzing the features of non-metallic inclusion distribution in Ø410 mm continuously cast billets of low carbon steel grades, Materials Science Forum. 973 (2019) 21-25
Strouhalová, Influence of casting speed on centerline porosity formation in continuously cast round steel billets, 26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, 2017, pp. 235-240