Search results

Dynamic Analysis on Change and System Simulation of Food Production Materials in the Northern Anhui Province Haimin Sua, Aixia Heb , Yang Gaoc School of Earth Sciences and Engineering, Suzhou University, Suzhou, Anhui 234000, China ahmsu2004@163.com, bheaxfree@163.com, cszxygy@163.com Key words: Grain per unit area yield materials; Dynamic change; Gray relative analysis; the Northern Anhui Province Abstract: According to statistical and survey data at provincial levels, trend of Grain per unit area yield materials and its influencing forces in Northern Anhui Province during the last 20 years were discussed in this article.
Journal of Anhui Normal University (Natural Science), Vol. 33（1）（2010），p.72-76
Journal of Heze University，Vol. 33（5）( 2011?)
Wuhan: Huazhong University of Science and Technology Press, (1986)
Wuhan:Hua zhong University of Science and Technology Press, (1989).

Lovska, Improvements in passenger car body for higher stability of train ferry, Engineering Science and Technology, an International Journal. 23, 6 (2020) 1455–1465
Kondratiev, Criterion-based assessment of performance improvement for aircraft structural parts with thermal spray coatings, Journal of Superhard Materials. 41, 1 (2019) 53–59
Fedorov, Physicomathematical modeling of the processes of capillary impregnation of porous materials, Journal of Applied Mechanics and Technical Physics. 50 (2009) 35–43
Boyarskaya, Theory and practice for the manufacture of a composite thermal heat shield for a space ship, IOP Conference Series: Materials Science and Engineering. 153 (2016) 012015
Kovalevska, Experimental and computer researches of ferroconcrete floor slabs at high-temperature influences, Materials Science Forum. 968 (2019) 361–367

However, since the material performance requirements of hot-stamping dies have not been standardized, and special die materials have not been developed, the choice of materials is based on improving the safety coefficient, which leads to material waste and increased costs.
In this article, the performance requirements of hot-stamping dies are analyzed to obtain the main force indices and a material selection formula, providing a scientific basis for the selection of hot-stamping die materials.
Tekkaya．A review on hot stamping[J]．Journal of Materials Processing Technology, 2010, 210(15)：2103-2118
International Journal of Precision Engineering and Manufacturing. 2012, 13(7): 1101-1106
Mechanical engineering materials，2001，25(12)：36-40.

In summary, the basic materials used in analogue material are pure gypsum, gypsum mixtures, paraffin wax mixtures, coarse oil materials and rosin mixtures.
The Chinese scientists have ever used coarse oil materials.
Of all kinds of analogue materials, there are two influential analogue materials.
Chinese Journal of Rock Mechanics and Engineering.
Beijing, China: Science Press, 2002, P. 31-41.

The copper matrix of both friction materials are continuous，which make the bond strength of the friction materials high.
Acknowledgements The work was financially supported by the National Natural Science Foundation of China (51001117).
Yin: Journal of Central South University (Science and Technology) Vol. 39 (2008), p. 517, in Chinese [3] Y.
Deng: Journal of Academy of Armored Force Engineering Vol. 23 (2009), p. 19, in Chinese [6] R.X.
Li: The Chinese Journal of Nonferrous Metals Vol. 18 (2008), p. 1453, in Chinese

Introduction The search for fundamentally new ways to intensify the processes of manufacturing highly efficient building materials implementing energy-and-material-conserving technologies has led the construction science and industry to the development of new directions for the synthesis of materials with the implementation of the energetic potential of natural raw materials [1-7].
Chemically resistant silicate building materials based on volcanic rocks.
[7] Eroshkina N.A., Korovkin M.O., Resource and energy saving technologies of building materials materials based on mineral-alkaline and geopolymer binders, Penza: PUGAS, 2013 - 156p
Abstract of Candidate of Technical Sciences EPI 2020, -21p
Series: Materials Science and Engineering 698 (2019) 022078

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.

Global Utilization of Solar Energy and Development of Solar Cell Materials Chun Ma1, Xiaochun Zhang1,2,a, Guangyu Zhang1, Weiping Chen2, Song Gu3 1Tianjin Research Institute of Water Transport Engineering, MOT, Tianjin, 300456, China 2Research Center for Eco-Environmental Sciences, CAS, Beijing, 100085, China 3College of Life Science, Nankai University, Tianjin, 300071, China amotzxc@gmail.com Keywords: Solar Energy, Solar Cell, Cell Material, Temporal Change, Spatial Change, Energy Conversion Efficiency.
Solar cells with different materials display different characteristics (Table 1).
References [1] Collins, R.: Solar Energy Materials and Solar Cells Vol. 78, 1-4 (2003), p. 143
Wronski : Journal of Applied Physics Vol. 101 (2007), p.114
Poole: International Journal of Photoenergy (2009), doi:10.1155/2009/154059

Badawi Faculty of Science, Physics Department, El-Minia University, Egypt anasser_ak_62@yahoo.com Keywords: Aircraft Alloys, Electrical Measurement, Isothermal Annealing, Positron Annihilation Techniques Abstract Positron annihilation lifetime (PAL) is one of the most important nuclear techniques used in material science.
Electrical measurements are also used in material science.
Stott: Canadian Journal of Physics, 52 (1974) 759 [9] W.
Badawi: Journal of Materials Science and Engineering, 5[4] (2011) 400 [16] W.
Brown: Journal of Applied Physics, 22 (1951) 1012 [17] I.

A contrast experiment was performed with materials including shell powder, bone meal and biochar.
Materials and Methods Materials.
Pu, Mineral materials as feasible amendments to stabilize heavy metals in polluted urban soils, J.
Environmental Sciences 23 (2011) 607-615
Li, Adsorption of sulfamethoxazole on biochar and its impact on reclaimed water irrigation, Journal of hazardous materials, 209-210 (2012) 408-413