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l Material requirements planning process, According the BOM and existing materials, calculates the number and type of input materials, output.
And also calculates the lead-times and lot sizing of materials purchasing.
Although the responsibility for inventory costs is usually assigned to a materials management group; the materials management group wants short production runs to keep inventory levels down.
*Supported by the Teaching Research Project of Anhui University of Science and Technology (2008).
[5] Fang Fengcai, Zeng Zhongning, Li Ping, Pan Yinsong, Cheng Xiaochen, Regenerate the Electronic Technology Practice Teaching to Foster Student's Creativity, Journal of Guangxi Teachers Education University (Natural Science Edition), Vol. 27 (2010), p. 97-100

Casciari, Advances in ferrofluid technology, Journal of Magnetism and Magnetic Materials,1995, 149
Grunwald, Design and application of magneto-rheological fluid, Materials and Design. 2007, 28
Magneto-rheological fluid behavior in squeeze mode, Smart Materials and Structures, 2009, 9
Materials Science and Engineering, 2007, 464
Materials Science and Engineering, 2007, 4443.

Bhat, Nano CeO2/activated Carbon Based Composite Electrodes for High Performance Supercapacitor, Materials Letters, 112, (2013) 158-161
Journal of Engineering Science and Technology, 5, (2010) 130-139
Materials Letters, 58, (2004) 33-38
Masbudi, Conductivity Studies and Characterizations of PVA-Orthophosphoric Electrolytes, Journal of Materials Science Research, 3(2014) 48-58
Masbudi, A Noble Conductivity Studies and Characterizations of PVA-Orthophosphoric-Filter Paper Electrolytes, Journal of Materials Science Research, 3 (2014) 1-12

Introduction Concrete-filled steel tube structures effectively combine the advantages of two materials: steel tube and concrete, which have many advantages such as convenient construction, high bearing capacity, good ductility and toughness.
This new joint is appropriate to avoid the shortcomings of several other joints which have many advantages such as simple structure, convenient processing and installation, good integrality, safety and saving material.
Acknowledgements This research was supported by the Natural Science Foundation of China (50908015), Shaanxi Provincial Natural Science Foundation (2011JM7002) and Ph.D.
[4] J M Ricles, S W Peng, L W Lu: Journal of Structural Engineering, Vol. 130(2004), p. 223-232
Shandong University of Science and Technology, 2005, in Chinese

The experimental material is source-separated municipal solid waste.
As can be seen from the Fig.2, pyrolysis rate gradually increases with temperature rising from 450°C to 850°C, which means pyrolysis rate curves of different materials have the same variation tendency.
Journal of Institute of Energy. 65: 192-200
University of Science and Technology of Suzhou (Engineering and Technology). 16(1):16-21.
Journal of Kunming University of Science and Technology (Science and Technology). 33(5):86-89.

The impact of concentrated energy fluxes on materials currently receiving attention [8-15].
Bakhracheva, Fracture toughness prediction by means of indentation test, International Journal for Computational Civil and Structural Engineering. 9 (2013) 21-24
Science Journal of Volgograd State University.
Materials science forum. 870 (2016) 545-549
Vasilyev, et al., Valve Cam Design Using Numerical Step-by-Step Method, Science Journal of Volgograd State University.

Introduction Metallic rubber is not only a porous material, but also a dry-friction damping material.
It is difficult predicting nonlinear constitutive relationship of the material and computing response of damping system made of the material, which is forward positional task to be solved in the field of vibration engineering.
Acknowledgement The project was supported by the National Natural Science Foundation of China (No.50805112).
[2] Zheng Xiaoping, Yao Zhenhan, and Du Qinghua, “Calculation of the steady state response of locally nonlinear dynamic systems by harmonic balance method,” Journal of tsinghua university (Science and technology), vol. 8, pp.36~39 , July 1997 [3] Zhe Yiqing, Li Cuiying, “Analysis of nonlinear vibration,”Beijing: Beijing institute of technology press , 1996
[8] Li Yuyan, Huang Xieqing, and Mao Wenxiong, “Investigation on the computational method of vibration response of dry friction system with cubic non-linearity for metal rubber,” Journal of aerospace materials,vol. 24, pp. 56-60, December 2004

It is a process of joining materials based on 3D model data.
Sandhu, "Effect of slicing parameters on surface roughness of fused deposition modeling prints," in Materials Today: Proceedings, 2022
Li, "A review on voids of 3D printed parts by fused filament fabrication," Journal of Materials Research and Technology, vol. 15, pp. 4860-4879, 2021
Metwalli, "A review of fused deposition modelling for 3D printing of smart polymeric materials and composites," European Polymer Journal, vol. 156, p. 110591, 2021
Liu, "Modeling of the chemical finishing process for polylactic acid parts in fused deposition modeling and investigation of its tensile properties," Journal of Materials Processing Technology, vol. 240, pp. 233-239, 2017

Since piezoelectric materials exhibit strong temperature dependency.
Journal (A) Vol. 42 (1999), p. 249 ].
Elongation by electric field Remanent polarization elongation The direct and converse piezoelectric effects of piezoelectric materials can be described by piezoelectric equations found by Tiersten in 1969 [[] H.F.
Soh, in: Smart Materials, Structures, and Systems, edited by S.
Acknowledgements The authors would like to extend their thanks to the joint financial support by National Natural Science Fund of China (50778077) and National Science Fund for Distinguished Young Scholars (50925828).

This device was used for measuring of the roughness parameters (Ra, Rz and Rmr) for all materials. [9], [12] This experiment deals with grinding materials for tools.
For all materials were used identical dimensions of workpiece 50mm x 50 mm x 10mm.
This trend applies to all tested materials of grinding grains and also for all materials, which were grinding.
MSE 2009: Proceedings of the Manufacturing Science and Education.
Surface layer microhardness changes with high-speed, The International Journal of Advanced Manufacturing Technology.