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Online since: July 2022
Authors: Vladimir Lebedev, Tetyana Tykhomyrova, Anna Cherkashina, Inna Lavrova
The most common raw materials for bitumen production are oil residues.
And this significantly affects the quality instability of raw materials for the bitumen production and limits the possibility of receiving bitumen with certain physical-chemical characteristics [1].
Materials.
Khakimullin, R.Kazakulov, Bitumen chemical modification by a thermoplastic polymer, IOP Conference Series: Materials Science and Engineering. 890 (2020) 012094
Lebedev, Development of a bitumen-polymer composition, resistant to atmospheric influences, based on petroleum bitumen and their properties study, Materials Science Forum. 1038 (2021) 352–8. https://doi.org/10.4028/www.scientific.net/msf.1038.352
Online since: February 2014
Authors: Q.Y. Liu, Meng Tao Yang, Yu Chao Wang, Feng Li
Materials and methods Materials.
The products obtained were very stable and would be used as medicine and food materials.
Tarcha: Journal of colloid and interface science Vol. 170(1)(1995), p. 254 [5] X.Gao, J.
Zhang: Advanced Materials Vol.14(4)(2002), p.290 [6] T.W.Smith, and R.
Wang: Materials chemistry and physics Vol. 101(2) (2007), p. 357
Online since: June 2022
Authors: Yi Liu, Guo Xin Zhang, Ning Yang, Yu Qiao, Zhen Hong Wang, Jian Da Xin
Experimental Program Materials.
Construction and Building Materials, 170: 613-618
Materials Journal, 100(3): 239-245
Materials and structures, 27(6): 324-330
[7] Mehta PK and Monteiro P (2006) Concrete—microstructure, properties, and materials (3rd ed.).
Online since: June 2015
Authors: Florin Stanculeanu, Ion Ciupitu
Introduction For the manufacturing of support plates it is necessary to start from the plane shape of the work piece, type of the material, conditions established through design and dimensions of the piece.
Industrial processing of the plates uses plasma or laser cutting for large plates from different materials (steel, copper, aluminum) but the costs of the acquisition and maintenance of these devices used in processing are higher.
All these factors are presented in the next formula: C= Cm+Csc+Co+ Cdt+ Ctdv (1) where: · C – total costs inquired for the fabrication of the product; · Cm – costs of the materials: it means the taking into account specific factors as the planar surface area, thickness of the material, specific weight of the material, specific coefficient related to the utilization of the material and cost per unit of the material; · Csc – costs with staff meaning net salary and other legal charges (social charges, state budget, etc.), average time per operation for the production of a single unit, average time for preparing the devices for a proper functioning and the number of products · Co – costs with overheads: it means the taking into account the costs related to the consumption of the electrical energy, water, technical gases and other specific conditions required by the process; all these factors can be summarized as 2 – 2,5 % from staff costs · Cdt – costs with the depreciation
[5] Ciupitu, I., et al. - The improving of the process of the iron, the cast iron and the copper powder mixing, Materials Science Forum Vol.  672 (2011), pag. 76-79, edited by Trans.
Sirbu, Sorin Savu, Heat affected zones in polymer laser marking, Journal of Thermal Analysis and Calorimetry, pag. 1-11, 2013, DOI: 10.1007/s10973-013-3443-2.
Online since: June 2013
Authors: Madlen Ullmann, Rudolf Kawalla, Matthias Oswald, Sofya Gorelova
Due to its low density combined with a high thermal conductivity, low thermal expansion, good electromagnetic damping and a good specific stiffness, magnesium has a lot of constructional advantages compared to other lightweight construction materials as aluminium or titanium [1].
The chemical composition of the used material is given in Table 1.
-P.Vogt, Strip rolling technology of magnesium alloys, Steel research journal, Metal Forming (2012) 855-858 [7] M.
Liu, Effect of initial texture on dynamic recrystallisation of AZ31 Mg alloy during hot rolling, Material Science and Engineering A, 20 [9] Y.
Cho, Microstructure and mechanical properties of Mg-Al-Mn-Ca alloy sheet prodused by twin roll casting and sequential warm rolling, Journal of Alloys and Compounds 509 (2011) 704-711
Online since: October 2011
Authors: Xiao Lei Guo, Ping Xiang Cao, Hong Wei, Bao Jin Wang, Zong Ming Qiao, Wei Hu
In actual production, the precision of thickness control may be affected because thickness gauge are easy to viscous materials and other impurities.
Affect the accuracy of ultrasonic testing are many factors, mainly thickness accuracy, calibration, probe, coupling agents, surface properties of the measured materials and the environment temperature, especially the porous fiber materials, causing a large number of ultrasonic scattering and attenuation, resulting in There was abnormal readings or no readings (usually the abnormal readings are less than the actual thickness.)
Sensor principle and engineering application(the second edition)[M] .Xi’an:The press of Xi’an university of electronic science and technology,2001
Chinese Journal of Scientific Instrument,2002,23(3):115-116
Journal of Central South University(Science and Technology),,2010,41(4):1411-1417
Online since: January 2013
Authors: Xiao Ting Sun, Ming Feng Wu, Fei Du, Yan Long Bi, Li Xia Lu
Soboyejo, LHRH-functionalized superparamagnetic iron oxide nanoparticles for breast cancer targeting and contrast enhancement in MRI, Materials Science and Engineering C 29 (4) (2009) 1467–1479. ].
Materials and methods Synthesis of dextran-coated superparamagnetic iron oxide nanoparticles (dSPION).
Science 286, 2169–2172. ,[] Engelmann, K., Drexler, D., Bohnke, M., 1999.
Krishnan, Synthesis of magnetoliposomes with monodisperse iron oxide nanocrystal cores for hyperthermia, Journal of Magnetism and Magnetic Materials 293 (2005) 265–270. ] Liposome is bilayered membrane structure composed of phospholipid molecules, which are amphiphilic molecules consisting of a polar part and a non-polar part,[[] Torchilin, V.P., 2005.
Our study demonstrated the potential applications of dSPION and, especially, magnetoliposome as a novel materials on labeling RCECs for cell transplantation.
Online since: November 2006
Authors: Bo Lin He, Er Yu Shao, Ying Xia Yu
Study on Bending Fatigue Life of 42CrMo Steel with M+F Dual-Phase Structure Bolin He1,a, Yingxia Yu1,b and Eryu Shao2,c 1 School of Mechanical & Electrical Engineering, East China Jiaotong University, Nanchang 330013, China 2 Material Institute, Henan University of Science and Technology, Luoyang 471003,China a hebolin@163.com, byuyingxia@163.com, cshaoeryu@haust.edu.cn Keywords� Bending fatigue�Undissolved ferrite�Dual-phase structures�Fatigue property�Failure mechanism Abstract.
The potential use of martensite+ferrite dual-phases materials in bending fatigue applications will depend on the amount, size and shape of undissolved ferrite.
Jin: Wear, Vol. 200(1996), p. 74 [3] He Bolin, Shao Eryu: Hot Working Technology, Vol. 25(1996), p. 36(In Chinese) [4] Shao Eryu Chen Qing, Wang Shunxing: Chinese Journal of Metal Heat Treatment, Vol. 13(1992), p.17 (In Chinese) [5] Wang Shunxing, Chen Qing: Journal of Luoyang Institute of Technology, Vol. 13(1992), p.38 (In Chinese) [6] He Bolin, Shao Eryu, Fan Zhonghe: Physical Testing and Chemical Analysis, Part A, Vol. 29(1993), p.20 (In Chinese) [7] Liu Yanqing, Song Yujiu: Metal Heattreatment, Vol. 12(1987), p.9 (In Chinese)
Online since: September 2013
Authors: Xiao Lu Wu, Zi Biao Song, Shu Xiong Zhang, Chun Ge
An experiment on dispersion of a carbon nanofiber material is taken to validate the model and the simulations produce more accurate predictions for both mass concentrations and setting velocity than the standard random walk model.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (60908044).
International Journal of Multiphase Flow 2003, 29: 375–394 [2] L.I.
International Journal of Heat and Fluid Flow 2005, 26: 416–430 [3] R.P.
Experimental studies on dispersion of fine non-spherical particles in enclosed spaces, Applied Mechanics and Materials, Volume 310(2013) pp3~6
Online since: July 2011
Authors: Yin Xu, Qing Xu
Optimization design of anti-sliding pile based on genetic algorithm Yin Xu1,a, Qing Xu1,b 1State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei 430072, China axuyinwd@163.com, bxuqing8263@hotmail.com Keywords: anti-sliding pile, residual thrust method, optimization design, genetic algorithm.
Mechanical parameters of slope materials Material Number Cohesion(kPa) Internal friction angle (°) Unit weight(kN/m3) Saturated unit weight(kN/m3) 1 9.5 12.6 19.8 20.5 2 25.5 27.5 19.8 20.5 In order to search for the most dangerous sliding surface, global search method and local search method are combined in this paper.
Chinese Journal of Rock Mechanics and Engineering, Vol. 22(12)(2003), p. 1943-1952,in Chinese
Journal of Safety and Environment, Vol. 5(4)(2005), p. 73-77,in Chinese