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A, of. 410, Russia aulybin@mail.ru, balexander.puzanov@proceq.com Key words: corrosion of reinforcement, investigation of buildings, reinforced concrete constructions, non-destructive testing method.
There are several methods for measuring the resistivity of materials: disk method with a single external electrode, two-electrode and four-electrode methods.
Influence of carbonation on chloride-induced reinforcement corrosion in simulated concrete pore solutions / Liu R., Jiang L., Xu J., Xiong C., Song Z.// Construction and Building Materials. 2014. № 56.
Yakovlev // magazine of Building and Engineering. - 2010. - №7(17). - P.35-40
Test methods for on site measurement of resistivity of concrete - a RILEM TC-154 technical recommendation// Construction and Building Materials. 2001. №15.- P.125-131

In [6–8] the authors studied impact of electrodes size, position, materials and structures on the electrode performance.
In the next section, the materials and methods are presented, namely the description of the PROTACTICAL CPS and the node-PROTACTICAL 1 architectures and the design of textile electrodes embedded on a t-shirt.
Materials and Methods PROTACTICAL Cyber-Physical System.
Stylios, “A Hybrid Textile Electrode for Electrocardiogram (ECG) Measurement and Motion Tracking,” Materials (Basel)., vol. 11, no. 10, p. 1887, Oct. 2018
Pedro S., “Continuous health monitoring using E-textile integrated biosensors,” in EPE 2012 - Proceedings of the 2012 International Conference and Exposition on Electrical and Power Engineering, 2012, no.

Use of Carbon Nanomaterials as a Catalyst Support in Fuel Cells Yoshiyuki Suda1, * 1Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku, Toyohashi, Aichi, Japan Keywords: Fuel cell, catalyst support, carbon nanocoil, carbon nanoparticle, methanol oxidation reaction.
We have investigated methods of increasing the purity of CNCs in synthesized materials containing CNCs and CNFs, and have achieved a CNC purity of 80% [9].
The impurities contained CNFs and carbonaceous materials.
The PtRu and Pt catalysts were loaded onto the carbon materials by the reduction method using sodium boron hydrate (NaBH4) [10].
Summary Fibrous carbon nanomaterials, CNC and VGCF-X, were used as catalyst support materials for DMFC catalysts.

Control of Onset of Buckling Lobe in Axial Impact of Square Tube Minoru Yamashita1,a, Tomohito Okuyama 2, Naoya Nishimura1,b and Toshio Hattori 1,c 1 Dept. of Mechanical and Systems Engineering, Gifu University, 1-1 Yanagido Gifu, Japan 2 Graduate Student, Ditto a minoruy@gifu-u.ac.jp, bnaoya@gifu-u.ac.jp, chattori@gifu-u.ac.jp Keywords: Buckling Lobe, Hollow Cylinder, Impact Experiment, Numerical Simulation Abstract.
Hence, the material is convenient for the present study.
The mechanical properties of the tube material are assumed elastic-plastic.
The strain hardening property is set to be similar to the experimental material.
Sawairi: Key Engng.

Materials and Methods Chemicals and Materials.
[6] Taladriz-Blanco, P., et al., Impurities in polyvinylpyrrolidone: the key factor in the synthesis of gold nanostars.
Journal of Materials Chemistry, 2011. 21(18): p. 6531-6540
Chemistry of Materials, 2016. 28(18): p. 6763-6769
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2019. 582: p. 123870.

Electrically conductive PEDOT-PSS/PAN composite fibers prepared by wet spinning Liu Yin, Li Xin*, Lü JingChun Beijing Key Laboratory of Clothing Materials R&D and Assessment, School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China Keywords: PEDOT-PSS, PAN, wet spinning, composite conductive fibers Abstract.
Experimental Part 2.1 Materials 3,4-ethylenedioxythiophene(EDOT, ≥99.5%) was purchased from Suzhou Yacoo chemical reagent corporation.
Reynolds, Advanced Materials 12,481(2000)

Micromechanical and Tribological Properties of Nanostructured Carbonitride Coatings Deposited by PVD Technique Armands Leitansa*, Janis Lungevicsb, Uldis Kandersc, Irina Boikod, Riga Technical University, Institute of Mechanics and Mechanical Engineering, Latvia aarmands.leitans@rtu.lv, bjanis.lungevics@rtu.lv, culdis.kanders@rtu.lv, dirina.boiko@rtu.lv, Keywords: nanostructured composite coatings; low friction and low wear rate; carbonitrides; high-power reactive magnetron sputtering.
Furthermore, the addition of small amounts of Al and Si constituents to the nanocomposite structure of these materials considerably improved their tribological and anti-corrosive properties at operating temperatures exceeding 400 °C, such as hardness and wear resistance, thermal stability, and denitrification temperatures [4].
For bulk materials, e.g., as the steel substrate Meyer’s index is a good measure of the indentation size effect (ISE) [9].
Conversely, n>2 represents so-called reverse ISE behavior, whereas at n=2 the ISE is absent for the given material at the applied indentation depths.
Bajajb, A critical review of diamond like carbon coating for wear resistance applications, International Journal of Refractory Metals & Hard Materials. 78 (2019)107-122

Introduction Hadfield steel is widely used as an engineering material since it has been invented in 1882.
Certainly, the precipitation of cementite on the austenite grain boundaries enhances the austenite hardness to its ultimatum at the expense of the toughness of the material.
This phenomenon considers as a catastrophic phenomenon of this material.
Table 4 declares that the nodularity of the eutectic phase is the key role parameter on the strain hardening rate.
Edition 10., volume 1, “Properties and Selection: Stainless Steels, Tool Materials and Specialpurpose Metals”, ASM Intern., 1995

Squillace1,h 1University of Naples Federico II - Dept. of Chemical, Materials and Industrial Production Engineering, Piazzale Tecchio 80, 80125 Naples ITALY aantonello.astarita@unina.it, bluigi.carrino@unina.it, cmdurante@unina.it, daformisa@unina.it, eantgella@unina.it, fcapece@unina.it, gvalentino.paradiso@unina.it, hsquillac@unina.it Keywords: Aluminum alloys; Incremental forming; CGDS Abstract: Superficial coatings are widely used in industrial applications in order to improve the superficial properties of metallic components.
Furthermore nowadays the fiber reinforced materials are finding more and more widespread use in aeronautic field due to their features of lightness, high strength, and flexibility of manufacturing systems.
The coupling of aluminum alloys with the above described materials leads to galvanic corrosion problems, due to the difference of the electrochemical potential between aluminum and CFRP, resulting in a fast degradation of the aluminum components.
The hardness of the coating could be compared with the one of the base material; · The coating carried out on the AA 2024 sheet is free from defects and shows good mechanical properties in all its extension; · The deformation behaviour of the coating depends on the thickness of the coating itself.
Russo, Superplastic forming/diffusion bonding of a titanium alloy for the realization of an aircraft structural component in multi-sheets configuration, Key Eng.

The research on the effect of drilling fluids additives on Rate of Penetration(ROP) Xionghu Zhaoa, Fei Gao b, Yufei Lic, Wai Lid CMOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Beijing, China acpbzxh@cup.edu.cn,bggoofee@gmail.com, cyuqi-001@163.com, dchizuru198624@sohu.com Keywords: drilling fluids; Rate of Penetration; zeta potential; droplet extension areas; rock breaking Abstract.
He pointed out that when the zeta potential is zero, rock materials would be of greater frangibility and the lowest compressive strength and the subcritical crack growth rate would be raised by over one magnitude.
Materials and Approaches Instruments and materials.
Materials: Sodium chloride (AR, chemical reagent factory in Beijing ), Magnesium Chloride (AR, Shuanghuan Chemical reagent factory in Beijing ), Crystal Calcium Chloride (AR,Shuanghuan Chemical reagent factory in Beijing), Crystal Aluminum Chloride (AR, chemical reagent factory in Beijing), Aluminum Sulfate (AR,Shuanghuan Chemical reagent factory in Beijing), ZJBS (laboratory self-control) , sandstone core ( grey, cylindrical, 5 cm thick, the radius of 12 cm) Experimental methods