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Ibragimov Complex Institute, Russian Academy of Sciences, 21A, Staropromyslovsky ave., Grozny, 364051, Russia, avegros@rambler.ru (corresponding author), baslan2001@rambler.ru, czmagamed-ali@mail.ru Keywords: contact melting, electrotransport, x-ray diffraction analysis, intermetallic compound.
A., Sozaev V.A., On relation between a rate of contact melting of metals with solid solutions and their residual resistance, Letters to the Journal of Theoretic Physics, 32 (7), (2006), 1-5
Proceedings of the international symposium engineering and earth sciences: applied and fundamental research (ISEES 2018), 177, (2018), 142-145
[11] Elekoeva K.M., Karamurzov B.S., Kardanova M.S., Korotkov P.K., Orkvasov T.A., Sozaev V.A., Adhesion of melts and soldering of various materials.
Frantsevich, National Academy of Sciences of Ukraine, 42, (2009), 23-38

Therefore, it is the focus and hot issues in the field of water conservancy science.
Materials Based on the scientific theory of membership ,it made quantitative evaluation of water resources carrying capacity of Anhui Province. 1) Weight determination of each level It used the method based on vague sets to determine the weight at first, the weight sets were assumed as: X=（x1，x2，x3）=（B1，B2，B3）.The decision group was composed of five experts, it was D=（d1，d2，d3，d4，d5）,thus the vague evaluation matrix could be drawed as （aij）.
[2] Department of International Cooperation, Science & Technology, Study of Water Resources and Environment Carrying Capacity [A], Symposium Proceedings about Water Resources and Environment Carrying Capacity [C], Beijing: China Water Power Press, 2002
X., Synthetical Evaluating Method of Water Resources Sustainable Development and Using Status, Journal of Jilin University (Earth Science Edition), 32(1), pp. 55-57, 2002

Acknowledgements This paper was supported by the National Natural Science Foundation of China (Grant No. 51175075).
Key Engineering Materials, Vol. 464, (2011), p.741-744
Journal of Applied Polymer Science.
Science Press, 12,1990

The Analysis of Plate Heat Exchanger In Central Heating Regulation of Indirect Connection Hot Water Heating System Minghui Cui1, a, Xin Wang2,b and Jiliang Liu3,c 1,2College of Architecture and Civil Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China 3Zhangjiakou City Weijia Engineering Design Consulting Company Limited, Zhangjiakou, Hebei, 075000, China acuiminghui666@163.com, bwangxinlove7@163.com Keywords: plate heat exchanger, central heating, quality regulation, quality-flow regulation Abstract: Plate heat exchanger with unique advantages become dominant heat exchange equipment in heating engineering.
Introduction The application and development of plate heat exchanger has more than hundred years of history, because of the high heat transfer coefficient, small pressure drop, compact structure, light weight, small footprint, area and process convenient, wide components versatility, wide chosen materials, characteristics of easy to realize large-scale production etc., plate heat exchanger has been widely used in food, machinery, metallurgy, oil chemical industry and shipping, and other fields, meanwhile become dominant heat exchange equipment in urban central heating engineering[1].
Beijing, Chemical Industry Press, (2009) [3] Ping He, Gang Sun, The Heating Engineering[M].Beijing, China Building Industry Press, (2009) [4] Minghui Cui, Lichuan Zhao, Analysis of Concentrated Heating Regulation for Indirect Connection Hot Water Heating System[J].Journal of Hebei University of Science and Technology, 2010,31（6）：584-587
[8] Jinping Zhang, Qiang Zhang, Plate Heat Exchanger and Its Application Analysis In The Heating Engineering,[J].Gansu Science and Technology, 2004，20（11）： 114-118

Actually, graphite materials have complex microstructures and textures depending upon the type of processing and heat treatment[6].
The study of cathode materials used in the field of high power microwave.
Noda Tokichi, Various raw materials of carbon - Heating treatment of lattice constant change.
Journal of chemical industry, 1961,1370-1375
Journal of Inner Mongolia Normal University (Natural Science Edition), 3, 357(1995).

Introduction Thorough understanding of characteristic mechanical processes taking place on a microstructural level of materials is one of the essential steps to assure the materials can withstand the always increasing pressure to their utmost performance.
There are many methods dealing with the modeling of heterogeneous materials and one of the most widely used methods is numerical homogenization [1].
For materials with periodic patterns are the heterogeneities modeled as periodic unit cells (PUC), see Fig. 1.
Bell system technical journal, 40(1):1-41, (1961)
Modelling and Simulation in Materials Science and Engineering, 21.2, 025014, (2013)

However, traditional methods of hardening do not always meet modern requirements for structural materials.
Materials and Experiment Investigation of the preliminary heat treatment effect in the glass mass on the microstructure and mechanical properties was carried out on samples carved from bars of grades 50 and 40H.
Gulyaev, Metallurgical science, Alliance publ., Moscow, 2012
Zhou, Structure-mechanical property relationship in a high strength microalloyed steel with low yield ratio: The effect of tempering temperature, Materials Science and Engineering. 609 (2014) 209-216
Siva Kumar, Effect of tempering time on the ballistic performance of a high strength armour steel, Journal of Applied Research and Technology. 14, is. 1(4) (2016) 47-53

Introduction Many scholars in iron and steel materials research found the phenomenon of austenite thermal stabilization [1] .
,Science Press, Beijing, 1999
,Materials Science and Engineering., MITEd.
Journal of Chinese Electron Microscopy Society. 29 (2010) 689-692
Yu, Microstructure development and mechanical properties of quenching and partitioning(Q&P) steel and an incorporation of hot-dipping galvanization during Q&P process, Materials Science & Engineering A .586(2013)100–107.

The samples behaved as soft magnetic materials, with magnetization levels ranging from 37 to 47 emu∙g-1.
Among the various methods for preparing these materials, the combustion reaction [5-10] stands out for being efficient, fast and safe, enabling the production of these materials on a laboratory scale with significant energy savings, short synthesis time, homogeneity and high yields of final product.
MATERIALS AND METHODS The Ni-Zn ferrite produced by combustion synthesis was prepared from a mixture of nickel nitrate (Ni(NO3)2.6H2O), zinc nitrate (Zn(NO3)2.6H2O), iron nitrate (Fe(NO3)3.9H2O) and urea (CO(NH2)2) as fuel.
Hankare: Solid State Sciences Vol. 14 (2012), p. 885
In: Journal of Nanoscience and Nanotechnology.

Study on Mechanical Behavior of Concrete-Filled Square Tubular Column and Bolt-Weld Steel Beam Joints with Reduced Beam Section Shaofeng Nie1,a, Tianhua Zhou1,b, Xiangbin Liu1 and Xiumei Wang2 1School of Architectural Engineering, Chang’an University, Xi’an 710061, Shanxi, China 2Beijing Guanya Weiye Civil Architectural Design Company, Limited, Beijing 100034, China aniesf126@126.com, bzhouth@chd.edu.cn, Keywords: Concrete-Filled Square Tubular Column; Beam-Column Joint; Reduced Beam Section; Finite-Element Analysis Abstract: The nonlinear FEM models of concrete-filled square tubular column with internal diaphragms and steel beams with reduced beam section bolt-weld joints, involving geometric, materials and contact nonlinear, were established.
The connection of specimen is welding and bolt, and we can get the characteristic of all material from the test [4].
Acknowledgement This work is supported by Shaanxi natural science foundation (2004E205).
Journal of Building Structures, Vol. 25(1) (2004), p. 9-16.