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Influence of composition on the corrosion of steel bar of reinforced geopolymer concrete Qing Wang1,2 a, Jing Da2,b ，Cunbao Zhang2.c, Zhaoyang Ding2,d,Zhitong Sui2,e 1 School of Materials & Metallurgy, Northeastern University, Shenyang, 110004, China 2 School of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang, 110168,China.
Slag and metakaolin were chosen as raw materials and sodium silicate of low module as alkali activator to prepare geopolymer concrete.
Experiment Raw materials.
[2] M.Steveson: Journal of materials science, 2005,40,2023-2036
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The material of workpiece is aluminum alloy 7050.
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Journal of Manufacturing Science and Engineering, 2005, Vol. 127: 13-22 [4] Wan M., Zhang W.H., Qin G.H..
Journal of Manufacturing Science and Engineering, 2005, Vol. 127: 454-462
Journal of Zhejiang University(Engineering Science), Vol. 43(3): 570-577

This mechanism is at the origin of the size effect in quasi-brittle materials [1].
So, refractory structures are able to support higher load levels compared to structures based on brittle materials.
Bazant, J.Planas, Fracture and size effect in concrete and other quasi-brittle materials, W.F.
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[4] A.Hillerborg, “Application of the fictitious crack model to different types of materials”, International Journal of Fracture, Vol.51, 1991, 95-102

Nowadays, people are more concern about replacing raw materials with renewable energy and hence, using waste to replace conventional materials.
The advantages of using kernel-shell as recycle materials are non-renewable materials can be replaced with renewable as well as encouraging utilization of renewable sources.
Pareige, Journal of Materials Processing Technology 182 (2007) 50-57
Ismail, Brake Pad & Disc Materials, UiTM (2007), p. 197-204
Koruda, Journal of Nuclear Materials 257 (1998) 59-66.

In this investigation, we try to choose (Tetracarboxyphthalocyaninato) cobalt [6-8]to replace it by reason of the cheaper cost. [9] Experiments Materials.
Journal of Material s Science & Engineering.
New Chemical Materials.
Journal of Hazardous Materials.
Journal of the European Ceramic Society.

Nano-TiO2 is also one of the most active inorganic nanometer materials in organic material modification and application.
Materials and methods Anatase-type nano-TiO2 modification.According to literature of Xianwen, T (Xianwen, 2003), 5.00g of Nano-TiO2 (<200nm) was added into 700ml water and the pH value was adjusted to 5.0.
Plant materials.
Journal of Food Science, 67, 1990–1994
Journal of the Science of Food and Agriculture, 90,549–555

MINERALS, METALS & MATERIALS SOC., (2006) 69 - 75
Pekguleryuz, Mg17Al12 phase refinement and the improved mechanical performance of Mg–6Al alloy with trace erbium addition, Materials Science & Engineering A 812 (2021) 141075
Luan, In situ synthesis of AlN in Mg–Al alloys by liquid nitridation, Journal of Materials Processing Technology, 166 (2005) 79-85
Dieringa, Individual/synergistic effects of Al and AlN on the microstructural evolution and creep resistance of Elektron21 alloy, Materials Science & Engineering A 777 (2020) 139072
Li, Study on tensile properties and microstructure of cast AZ91D/AlN nanocomposites, Materials Science and Engineering: A, 494 (2008) 127-131

Carbon membranes are typically produced by pyrolyzing various thermosetting polymeric materials, including polyimides [2], cellulose acetate [3], furfuryl alcohol [4], and phenol-formaldehyde [5], etc. under a variety of pyrolysis conditions.
Pyrolysis conditions were varied in accordance with the type of precursor material.
Variation of d spacing can indicate the graphitization degree of carbonaceous materials.
Rodrigues, Roger Whitley, Adélio Mendes, Preparation and characterization of carbon molecular sieve membranes based on resorcinol–formaldehyde resin, Journal of Membrane Science, 459 (2014) 207–216
Koros, Carbon molecular sieve membrane performance tuning by dual temperature secondary oxygen doping (DTSOD), Journal of Membrane Science , 427 (2013) 472–478 [9] W.N.W.

Preparation and Magnetic Properties of Carbon Encapsulated Fe-Cu Alloy Nanoparticles Jun Xue1, 2, a, Hou Kui Xiang2, Hong Qiao Ding2, Shu Li Pang2, Xue Hua Wang2 and Hong Cao2, b 1Wuhan Research Institute of Materials Protection, Wuhan 430030, China 2School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China a xuejun027@yahoo.com.cn, b caohong@mail.wit.edu.cn Keywords: Carbon, Fe-Cu alloys nanoparticle, Core-shell structure, Magnetic property Abstract.
Ara: Journal of Materials Processing Technology Vol. 181 (2007), p. 199 [7] O.C.
Zaman: Materials Science and Engineering A Vol. 217-218 (1996), p. 371 [10] R.S.
Kimura: Materials Letters Vol. 57 (2003), p. 1955 [13] N.
Liu: Journal of Alloys and Compounds Vol. 482 (2009), p. 122 [16] A.C.

COMPREHENSIVE REVIEW ON MAIN TECHNOLOGY OF EXOSKELETAL ROBOT SYSTEM FOR UPPER LIMB REHABILITATION 1LIANG ZHAO 1Research Center of Philosophy of Science & Technology, Institute of Ethics, Northeastern University, Shenyang, 110819, China 1zhaoliang_hz@163.com Keywords: Review, Exoskeletal Robot System, Upper Limb Rehabilitation, Mechanical Structure, Control System, Science-technology Ethics Abstract: Major function of exoskeletal robot system for upper limbs rehabilitation is to assist patient to carry out upper limbs’ rehabilitation training.
Further development trend of main technology henceforth is people-oriented, strengthening effect, improving efficiency, optimizing structure and reducing energy consumption that follow science-technology ethical claims. 1.
Further development trend of main technology of exoskeletal robot system for upper limbs rehabilitation henceforth is people-oriented, strengthening effect, improving efficiency, optimizing structure and reducing energy consumption that follow science-technology ethical claims.
[17] Youcef T, Reddy S, “Analysis of linear time invariant systems with time delay, Journal of Dynamic Systems”, Measurement and Control, Vol. 114, No. 4, 1992, pp. 544-55
[35] Choi S B, Park D A, “Moving sliding surface for fast tracking control of second order dynamical systems”, ASME Journal of Dynamic Systems, Measurement and Control, Vol. 116, No. 3, 1994, pp. 154-58