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Thanks to variable thickness, cooling conditions (heat transfer from PP melt to cylindrical mould through polymer insert is changing) are different the same as because of divers insert materials.
Other used materials do not show any damage.
In: Rapid Prototyping Journal [online].
In: MM Science Journal [online].
Free Encyclopedia of Polymer Science and Technology. © 2019. [20.10.2019].

The shot peening of other materials as aluminium-lithium alloys appeared detrimental [13].
Lu: Nanostructured Materials, Vol. 11, Nr. 4, (1999), pp. 433- 440 [2] G.
Lu: Materials Science and Engineering, Vol.
Bowen: International Journal of Machine Tools and Manufacture, Vol. 41 (2001), pp. 1681-1685
Mazumdar: Materials Science and Engineering, Vol.

Kumar1,d 1Department of Mathematics, School of Advanced Sciences, VIT, Vellore-632014, Tamil Nadu, India 2Faculty of Military Science, Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa athavadasravankumar@gmail.com,brushikumar@vit.ac.in, cmakinded@gmail.com Keywords: MHD, micropolar nanofluid, free convection, non-Darcy, non-uniform heat source/sink Abstract.
Based on Ahmadi [26] and Kline [30], the expression is defined as: (7) whereas a reference length,is the material parameter hence the material fluid subject to predict the limiting situation when microstructure effects grow to be poor but the total spin H reductions after the angular flow velocity.
The influence of numerous parameters like solid volume fractionand material parameter K(material parameter are discussed in two caseswhen K=0 and K=1) on nanofluid velocity, angular velocity, temperature are depicted in Figs. 2-4.
Culham, MHD variable viscosity reacting flow over a convectively heated plate in a porous medium with thermophoresis and radiative heat transfer, International Journal of Heat and Mass Transfer, 93 (2016) 595–604
Haq, Model-based analysis of micropolar nanofluid flow over a stretching surface, The European Physical Journal Plus, 129: 161 (2014)1-10

The special microstructure gives diatomite the advantages of chemical stability, acid-resistivity, low-density biogenic sediment, high pore-density and surface area, heat-resistance, low thermal-conductivity and non-pollution etc[6].Owing to these characteristics, especially its high pore-density and surface area, diatomite can strongly interact with metal ions, it can be used in many industrial areas, such as filtering-utility material, filling material, adsorbent, abrasive material and surface cleaning material, catalyst carrier, light construction material and silica source in chemical material manufacturing [7].
Materials and Method Materials.
Manganese oxides are an important material in terrestrial, marine geochemistry and in sediments.
Hu, et al, Reaction mechanism between Zn2+ and diatomite in preparation of Zn2+/diatomite antibacterial agent, Materials Science Forum, Vol. 685 (2011) 260-263
Li, Characterization of diatomite and its application for the retention of radiocobalt: role of environmental parameters, Journal of Environmental Radioactivity, 113 (2012) 108-115

The material properties of reinforced concrete are given in Table 2.
The material properties of rigid used in the model are given in Table 3.
The material properties of air used in the model are given in Table 4.
The material properties of soil used in the model are given in Table 5.
Zheng and H.GAO: Journal of Architecture and Civil Engineering. 2007 [In Chinese]

This is evidenced in turning because of the poor chip breaking and the formation of burrs which is caused by the high ductility of these materials [3].
Shape Memory Materials: Cambridge University Press. (1998), pp. 284
Petzoldt: Materials Science & Engineering A Vol. 378 (2004), pp. 180-184
Sari: Materials Characterization Vol. 61 (2010), pp.1187-1193
Sarrazin: Journal of Constructional Steel Research vol. 64 n.4 (2008), pp.429-435.

Introduction With the development of microwave technology, a variety of dielectric and ferrite microwave materials have been widely used.
The development of radar absorbing materials, microwave remote sensing and detection are on the cutting-edge of military technology, which have been much concerned.
The intrinsic parameters of the material are important to distinguishing materials by their dielectric properties, and to structure information, the development of new microwave materials and devices.
The electromagnetic properties of materials can be obtained by inversion if the changes of resonant frequency and the quality-factor of the cavity are accurately detected.
Chinese Journal of Sensors and Actuators, 2009, 10(20): P. 174

The role of the second phase in the composite is mostly to reinforce the materials mechanically (Article 4.1).
The results are presented and discussed in this article; Materials and methods In this research, high purity (99%) constituent oxides Al2O3, TiO2 and La2O3 were used for the production of ceramic composites.
Hosford: Mechanical Behavior of Materials.
Sornakumar: International Journal of Refractory Metals & Hard Materials Vol. 22 (2004), p.17
Sanguinetti Ferreira: Materials Science Forum Vols. 727-728 (2012), p. 592.

Kosarev High-energy processing of materials/ Novosibirsk: Science. 2000. 425 p
Electrolyte plasma nitriding of high speed steel // Applied Mechanics and Materials (ISSN: 1662-7482) Vol. 379 (2013) pp161-166
Surface treatment of materials with low-energy. high-current electron beams.
Charter 6 in Book "Materials surface processing by directed energy techniques". - Ed.
Investigations into the  effects of electron beam welding on thick Ti6Al4V titanium alloy // Journal of Materials Processing Technology,2007,192−193: 83−88

The research on the effect of the rising of capacitors’ working voltage indicates that the insulating medium working life of capacitor is consistent with general electrical aging rules of polymer insulating materials, that is, (19) In this formula, is working lifetime of insulating materials; is working voltage of capacitor; depends on the indexes of dielectric material and structure, normally 7-9.
Life model of metallized capacitor considering the effect of harmonics [J].Insulating Materials (in Chinese), 2002, 35(5):21-23
Journal of Hengyang Normal University (Natural Science) (in Chinese), 2003, 24(3):128-129
Beijing: Science Press, 2000
Insulating Materials (in Chinese), 2002, 35(5):21-23.