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If choosing a big ratio of height to span, although we can enhance the stability of the bridge, long arch rib materials will also increase the bridge cost.
Conversely, if choosing a small ratio of height to span, although short arch rib materials will reduce the bridge cost, the stability of the bridge is decreased.
Journal of Gansu Sciences.
Journal of Constructional Steel Research, vol. 59;.
Journal of Dalian University of Technology.

Additional the model was able to successfully classify the three fiber materials.
Recent advances in fibre-hybrid composites: materials selection, opportunities and applications.
International Materials Reviews 2018;64:181215.
Science and Engineering of Composite Materials 2019;26:502-8. https://doi.org/10.1515/secm-2019-0031.[3] Khatri B, Rehra J, Schmeer S, Breuer U, Balle F.
Materials & Design 2016;93:3945. https://doi.org/10.1016/j.matdes.2015.12.137

China 2College of Material Science and Technology, Donghua University, Shanghai 201620, P.
Section Effect of the module Slurry preparation Making raw materials into slurry Melting process The slurry are processed and transported to spinneret Spinneret The processed slurry will be sprayed into filament Spinning Improving the physical properties of the fiber Table 1.
Fig.2 Prototype of neural network Simulation of Spinning Process At first, from table 2, six key parameters of the production process are taken as the input vectors and one important index of materials is considered as the output vector.
Rheological characterization of PET polymer melt,” Journal of Applied Polymer Science, vol.46, no.1, p. 55-65, 1992
Cooke, “Learning using an artificial immune system,” Journal of Network and Computer Applications, vol. 19, no. 2, p. 189-212, 1996

Experimental procedure Materials.
Hegde: Journal of Rametation Crops. 25(1): 118. (1997) [3] S.B.
Hung: Wood and Fiber Science. 27(1): 49-54. (1995) [7] J.C.
Daneclski: Tappi Journal. 77(3): 151-158. (1994) [8] A.M.
Liang: Journal of Acoustics. 24(1): 66-70. (1999)

The results are compared with experimental results carried out using lead as a model material.
The program works according to rigid-plastic material behavior model.
[3] N.R.Chitkara, M.A.Butta, “Forging and heading of hollow spur gear forms: an analysis and some experiments”, International Journal of Mechanical sciences 41, 1999, pp. 1159-1189
Hu, “Alternative die designes in net-shape forging of gears”, Journal of Material Processing Technology 150, 2004, pp. 48-55
[6] J.Choi, H.Y.Cho, C.Y.Jo, “An upper-bound analysis for the forging of spur gears”, Journal of Material Processing Technology 104, 2000, pp. 67-73

On the hand the researches were focused on studying the EDL border between metal-synthetic materials.
Szelka, Formation of a double electric layer on the metal-plastic boundary, Journal of Materials Science. 40 (2004) 702-705
Szelka, Electrical double layer and adhesive force in fatigue strength of metals coated with plastics, Journal of Achievements in Materials and Manufacturing Engineering. 31 (2008) 678-682
Jamroziak, W Jargulinski, Anti-hydrogen coats on metals, Journal of Science, Gen.
Jargulinski, The analysis of the electrode potential shift in the examination of plastic-covered metal fatigue strength, Archives of Materials Science and Engineering. 41 (2010) 21-27.

Introduction Due to the limited availability and ever increasing prices of lithium based raw materials, present day battery research efforts are focused on so-called batteries beyond lithium-ion.
Due to several advantages such as ease of fabrication as thin films, flexibility to accommodate volume changes of the electrodes during charging/discharging processes, cheapest raw materials, good interfacial stability and so on, polymer electrolytes are highly preferred for secondary batteries [7-8].
Materials and Methods Five different compositions of PEO-Mg(CH3COO)2-EC-PC GPEs have been synthesized as listed in Table 1.
Kumar, Preparation and characterization of PEG-Mg(CH3COO)2-CeO2 composite polymer electrolytes for battery application, Bulletin of Materials Science 37 (2) (2014) 309-314 [2] J.
Hashmi, Plastic crystal incorporated magnesium ion conducting gel-polymer electrolyte for battery application, Bulletin of Materials Science 41 (2018) 147 (1-8) [7] K.

Materials Science and Engineering A 528, 4732–4739
Journal of Materials Processing Technology 92-93, 1-7
Journal of Materials Processing Technology 119, 329-335
Journal of Materials Processing Technology 161, 381–387
Materials Science and Engineering A 483–484, 148–152.

Research methods A classic thermoelectric unit is composed of a p-n thermocouple, as shown in Fig. 1, where the p-type thermoelement is of hole-rich materials and the n-type the electro-rich materials.
In this paper, we define (13) Experiment results The Bi2Te3 is adopted as studied thermoelectric material, physical properties is showed in [6].
Science. (285) 1999 703~706
Journal of Electronic Materials. 2009, 38(9): 1214-1220
Journal of Applied Physics, 1996, 79(11): 8823-8828

In this paper, the nanometer LSCM powder is prepared by sol-gel method and the electrochemical property of materials has been studied.
High purity Cr(NO3)3·9H2O, La(NO3)3, Sr(NO3)2, Mn(NO3)2 and critic acid were used as raw materials to prepare LSCM precursor.
Journal of Rare Earths, Vol. 21(2003), p. 46
Nature Science Progress, Vol. 12(2002), p. 82
Inorganic Materials Journal, , Vol. 17(2002), p. 316.