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Synthesis and Characterization of Double Pore Size Multiphase Materials from Waste Aluminum Slag and Activated Carbon Yanqing Chen a, Renping Wu b College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China a cyq_20050603@126.com, b wurenping@fzu.edu.cn Keywords: Waste aluminum slag; Activated carbon; Double pore size; Multiphase materials Abstract.
A new type of double pore size activated alumina/activated carbon multiphase material was made by using waste aluminum slag and activated carbon as main raw materials.
Table 2 lists the iodine adsorption values of three materials.
Clearly the benzene adsorption capability of the new material is superior to that of pure activated alumina or activated carbon materials.
Furthermore, the benzene adsorption effect of multiphase materials is excellent.

Some Considerations Concerning the Differential Scanning Calorimetry of Ultra Tough Plastic Materials NEDELCU Dumitru1*, LOHAN Nicoleta Monica2, CARAUSU Constantin1, PRUTEANU Octavian1 1 “Gheorghe Asachi” Technical University of Iasi, Department of Machine Manufacturing Technologies, Blvd.
Mangeron, No. 59A, 700050 Iasi, Romania, Tel-Fax: 0040.232.217290, 2“Gheorghe Asachi” Technical University of Iasi, Faculty of Materials Science and Engineering, *dnedelcu@tcm.tuiasi.ro; monica.lohan@yahoo.com; c_carausu@yahoo.com; pluteanu@yahoo.com Key words: Calorimetry, Injection, Ultra Tough Plastic Materials Abstract: The Differential Scanning Calorimetry (DSC) has been an important analysis in research since the 20th century, being used is various fields such as: physics, chemistry and materials technology.
The research described in this paper focuses on the study of calorimetry of ultra tough plastic materials, such B4300G4 and B4300G6.
Schick, Calorimetry, Polymer Science: A Comprehensive Reference, 2, (2012), 793–823 [4] W.
Keller, Effect of thermal lag on glass transition temperature of polymers measured by DMA, International Journal of Adhesion & Adhesives, 52, (2014), 31–39 [5] D.

Calculation and Experimental Technique for Determining the Damping Properties of Composite Materials S.I.
At the same time, an increase in the vibration frequency was observed, which indicates an increase in the elastic properties of composite materials.
References [1] Ebrahimi F and Barati M R 2017 Smart Materials and Structures 26(6) 065018 [2] Gerstenberger C, Osiecki T, Kroll L, Scholz P and Seidlitz H 2016 Archives of civil and mechanical engineering 16(3) 467–472 [3] Koryagin S I, Velikanov N L and Sharkov O V 2017 Key Engineering Materials 736 8–11
[4] Krishan K C 2013 Composite Materials: Science and Engineering (New York: Springer Science & Business Media) p. 542 [5] Chung D L 2010 Composite Materials: Science and Applications (New York: Springer Science & Business Media) p. 371 [6] Fernando U S and Davidson M 2015 Proceedings of the ASME 34th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2015) 5B V05BT04A013 [7] Zamani H A and Aghdam M M 2017 Journal of Vibration and Control 23(18) 2869–2887 [8] Kolahchi R, Zarei M S, Hajmohammad M H and Nouri A 2017 International Journal of Mechanical Sciences 130 534–545 [9] Falborski T and Jankowski R 2017 Applied Sciences 7(8) 808 [10] Junker P and Kochmann D M 2017 International Journal of Solids and Structures 113–114 132–146 [11] Prasad D S and Shoba C 2016 Journal of Materials Research and Technology 5(2) 123–130 [12] Abramovich H, Govich D and Grunwald A 2015 Progress in Aerospace Sciences 78 8–18 [13] Akoussan K, Boudaoud H, Daya E M, Koutsawa Y and
Part B: Engineering 78 144–152 [16] Fritzen F and Kochmann D M 2014 International Journal of Solids and Structures 51(23–24) 4101–4112 [17] Vescovini R and Bisagni C 2015 Progress in Aerospace Sciences 78 19–29 [18] ASTM E756-05 2017 Standard Test Method for Measuring Vibration-Damping Properties of Materials (West Conshohocken, USA: ASTM International) p. 14 [19] SAE J1637 2013 Laboratory Measurement of the Composite Vibration Damping properties of Materials on a Supporting Steel Bar (Warrendale, USA: SAE International) p. 16 [20] Tweten D J, Ballard Z and Mann B P 2014 Journal of Sound and Vibration 333(13) 2804–2811 [21] Nakutis Ž and Kaškonas P 2011 Measurement 44(2) 487–492 [22] Paymushin V N, Firsov V A, Gunal I and Egorov A G 2014 Mechanics of Composite Materials 50 127–136

Preparation System Design of Filling Material with Coal Gangue as Coarse Aggregate Youxia Sun1, a, Dawei Ren2,b 1Key Laboratory of Mining Disaster Prevention and Control of Education Ministry, Shandong University of Science and Technology, Qingdao, Shandong, 266510, China 2College of Natural Resources and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266510, China asyxljl@sohu.com, bdawei_ren_2000@163.com Keywords: coal gangue, green mining, preparation system, filling material Abstract.
Thus far there are mainly four kinds of filling materials, which are high water materials, solid materials, paste filling materials and paste-like filling materials.
However, the preparation systems of the three filling materials are located on the ground, which must cause the secondary pollution by coal gangue processing and increase the transport cost by lifting the coal gangue out of the shaft and carrying the filling materials to underground.
The performances of the two materials developed meet the requirements of gob-side entry retaining and backfilling.
References [1] Xiexing Miao and Minggao Qian: Journal of Mining & Safety Engineering Vol.26 (2009), p.1 in Chinese [2] Nailiang Li andGuangming Feng: Journal of Coal Mining Technology Vol.15 (2010), p.50 in Chinese [3] Xiexing Miao and Jixiong Zhang: Journal of China Coal Society Vol.35 (2010), p.1 in Chinese [4] Minggao Qian and Jialin Xu: Journal of China University of Mining & Technology Vol.32 (2003), p.343 in Chinese [5] Yucheng Huang and Henghu Sun: Journal of Coal Science and Technology Vol.31 (2003), p.51 in Chinese

Meanwhile the explosion suppression effects of absorbing materials were studied tentatively in explosion chamber which can simulate mine gas explosion.
In order to compare the absorption effects of different aqueous materials, the same flow and same spray time should be set in every experiment.
Then methane absorption experiments were carried out using different materials and pure water.
Xu: Journal of North China Institute of Science and Technology Vol.5 (2) (2003), p. 5 [2] C.L.
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Ismailova, The effect of surface’s active sites on the reactivity of mineral additives, Scientific journal "Modern Science and Innovation" (Stavropol - Pyatigorsk). 2 (18) (2017) 168-175
Salamanova, Prospects for the use of thermally activated raw materials of aluminosilicate nature, Volga Scientific Journal. 2 (46) (2018) 65–70
Mayants, The use of ash and slag from hydroelectric power plants in the building materials industry, Obzor, Moscow, 1970
Rangan, On the development of fly ash-based geopolymer concrete, ACJ Materials Journal. 101 (6) (2004) 467-472
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Technical analysis of the performance optimization of nanospintronics devices based on carbonaceous materials has been presented in this paper.
Carbonaceous Materials in Nanospintronics The theory of nanospintronics is now well understood, especially for magnetic semiconductor material like GaMnAs.
Another important result is that the spin diffusion length is greater than 230 nm for electrons, and 310 nm for holes in the corresponding materials.
New Materials and their Selection for Designing and Fabricating the Spintronic Devices - A Technical Note.
Invertis Journal of Science & Technology, 7(4), 246-254

Here, identified performance indicators for materials management are presented.
It shows the value of unused materials that need to be returned or restocked.
This follows from conventional materials management being carried out using bill-of-materials, inventory data and master production schedules to determine time-phased plans for components and raw materials required for production [24].
Bell, Measuring effectiveness of materials management process, Journal of management in engineering. 11,6 (1995) 26-32
Raman, An econometric analysis of inventory turnover performance in retail services, Management Science. 51,2 (2005) 181-194

We thus can analyze the damage and fatigue life of materials and so on.
Mao: SIAM Journal Numerical Analysis Vol. 46(2008), p. 1821-1841
Reifsnider: Composite Materials: Fatigue Fracture Vol. 4(1993), pl. 66-83
Hai-Ali: International Journal of Fatigue Vol. 32 (2010), p. 350-360
Hu: Communication Nonlinear Science and Numerical Simulation Vol. 16 (2011), p. 814-821.

Ngoi, Material removal mechanisms in precision machining of new materials.
Journal of Materials Processing Technology, 2005. 166(2): p. 188-192
Materials Science and Engineering: A, 2012. 531: p. 155-163
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Journal of Materials Processing Technology, 2014. 214(12): p. 3048-3066