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Introduction Micro metal droplet printing technologies have been put under the spot light these years because of its application in manufacturing and material processing.
Using DOD method, droplet can be generated only when it is needed so that materials can be utilized with a high efficiency.
Acknowledgments: Project Supported by the National Natural Science Foundation of China under grant No. 51075090.
Li: Modeling and characterization of metal droplets generation by using a pneumatic drop-on-demand generator, in: Journal of Materials Processing Technology(2010) [2] C.

Experimental Materials SNF was obtained from Guangdong Zhanjiang Water Reducer Co., China and CE was obtained from Guangzhou Sika construction materials Co., China.
Acknowledgments The authors are deeply grateful to The China Excellent Young Scientist Fund (granted No.:20925622) and The Natural Science Foundation of Guangdong Province China (granted No.:8351064101000002) for the financial support.
Journal of American Ceramic Society 80(10):2667-2671. (1997) [5] Collepardi M.
Material characterization and application.

Straka, Possibilities to the Determination of the Measurement Capability of Digital Calliper, Annals of Faculty Engineering Hunedoara - International Journal of Engineering 10 (2012) 143-146
Rimár, Simulation Study of Two Alternative Workstations for Pressure Die-Casting Process, Applied Mechanics and Materials 110-116 (2012) 660-664
Pandová, Optimalization of Heat Treatment Bearings Rings With Goal to Eliminate Deformation of Material.
Mineral resources management, Mineral and Energy Economy Research Institute of Polish Academy of Sciences, Krakov. 25 (2009), pp. 23-33
Čačko, Experimental measurement and examination of independent and combined interaction of vibrodiagnostic and tribotechnical methods, in: Applied Mechanics and Materials: Operation and Diagnostics of Machines and Production Systems Operational States. 308 (2013) 51-56

Materials and Methods Development of Experimental Apparatus An experimental programme was conducted to assess the efficiency of EKS when applied to soft clay soil.
The EKS model apparatus consisted of tank made of non-conductive material (PVC-U sheet) to prevent short circuiting.
The electric current variations with treatment time for the same type of electrode are comparable with Liaki [10] who reported that the current initially increase at about 14 mA, while it then drops within the first 100 hours of treatment, as resistant of the materials increases and the voltage was set at the constant level.
Abdul Kadir: Stabilisation of soft soil using electrokinetic stabilisation method, International Journal of Zero Waste Generation (2013)
Yeung: Contaminant Extractability by Electrokinetics, Environmental Engineering Science, vol. 23 (1), (2006) p. 202 – 224

The starting materials were heated to 790 °C in a crucible furnace until fully stirred.
Nie, Role of Yb and Si on the precipitation hardening and recrystallization of dilute Al-Zr alloys, Journal of Alloys and Compounds. 599 (2014) 65-70
Sanders, A study of coarsening, recrystallization, and morphology of microstructure in Al-Sc-(Zr)-(Mg) alloys, Metallurgical and Materials Transactions A. 35 (2004) 341-350
Nie, A study of precipitation strengthening and recrystallization behavior in dilute Al-Er-Hf-Zr alloys, Material Science and Engineering A. 639 (2015) 307-313.

The different material properties used in CFD analysis is shown in table 3.
Table 3 Material properties used in CFD analysis Material Layer Thermal Conductivity (W/m.K) Specific Heat Capacity (J/ kg.K) Density (kg/m3) Tempered Glass Top Cover 2 500 2450 EVA Encapsulent 0.311 2090 950 Silicon PV Cell 130 677 2330 Tedlar Bottom Cover 0.15 1250 1200 4.
Joshi, Performance evaluation of photovoltaic thermal solar air collector for composite climate of India, Solar Energy Materials & Solar Cells. 90 (2006) 175-189
Reddy, Performance evaluation of a hybrid photovoltaic thermal (PV/T) (glass-to-glass) system, International Journal of Thermal Sciences. 48 (2009) 154–164

Considering traditional SnO2-based gas sensor working with higher operating temperature and lower gas response, preparation of 1D SnO2 materials and investigating their gas sensing properties to characteristic fault gases dissolved in transformer oil are in great demand.
Gao: Journal of Nanomaterials, Vol. 2012, (2012) Article ID 612420, 9 pages. doi:10.1155/2012/612420. ].
Such a higher quasi-linear dependence indicates that the as-prepared fiber-like SnO2 based gas sensor can be used as promising materials for online monitoring H2 dissolved in transformer oil.
As we know SnO2 is a typical n-type semiconducting material, and its gas sensing property was dominated by the change of surface electrical resistance.When placed in air ambient SnO2 nanofibers adsorb the oxygen molecule on the surface and a depletion region is formed on SnO2 surface, which decreases the number of charge carriers.
Dai: Science, 287 (2000) p.622. ], which makes them highly sensitive and efficient transducers of surface gas sensing reactions into electrical signals.

IEEE Journal of Emerging and Selected Topics in Power Electronics, 6(3):1378-1393, 2017 [8] Jegadeesan, R., Agarwal, K., Guo, Y., Yen, S., and Thakor, N.
IEEE Open Journal of Vehicular Technology, 2:17-44, 2020 [13] Lu, F., Zhang, H., Hofmann, H., and Mi, C.C.
Journal of Energy Storage, 41:102937, 2021 [21] Ahmad, F., Saad Alam, M., Saad Alsaidan, I., and Shariff, S.M.
International Journal of Green Energy, 18(7):657-686, 2021 [28] Hasan, T.U., Cheema, K.M., Mehmood, K., Tahir, M.F., Milyani, A.H., and Akhtar, M.
In IOP Conference Series: Materials Science and Engineering (Vol. 981, No. 2, p. 022066).

College of Chemistry and Material Engineering, Yunnan University, Kunming 650092, PR China 3.
Le Rille: Surface Science Vol.600 (2006) , P.2138 [14] B.
Ricart: Surface Science, Vol.558 (2004) , P. 111 [16] C.
Hodgson: Surface Science, Vol.60 (2007) , P.562 [17] J.Y.
Ribeiro: Surface Science, Vol.600 (2006) , P.2752 [18] M.I.Jeffrey and I.M.Ritchie: J.Electrochem.

Despite the margin of safety which is put at the design of the aircraft, an important role plays, both quality of the material and its ability to save the mechanical properties during all assigned resource for the aircraft.
The amount of lining wear products falling into the steel for one heat, depending on its durability and material Lining material Lining durability, n Amount of wear products Q, [kg] С, [%] Ground brick MgO 40 0.23 0.13 Periclase powder MgO 60 0.15 0.09 Spinel powder MgOAbOs 110 0.09 0.05 Determined the initial concentration of oxygen, nitrogen and hydrogen in the charge materials, the results of the analysis are shown in Table 2.
The original content of oxygen [O], nitrogen [N] and hydrogen [H] in charge materials Number The name of the charge Material Content [O], [%] [N], [%] [Н], [sm3/100 g] 1 Iron 0.039 0.013 1.36 2 Ferrochrome, consignment 1, 2, 3 0.12 0.165 1.48 0.42 0.173 0.61 0.17 0.172 2.14 3 Electrolytic nickel 0.0003 – 1.38 4 Electrolytic copper 0.025 0.0003 2.98 The results obtained show that under the layer of the main slag there is a monotonic saturation of the VNL-3 steel with nitrogen.
The experiments have shown that when ensuring and observing the following conditions, the level of non-metallic inclusions, the content d - ferrite and nitrogen as part of the resulting steel: · Structural and technological rigidity of the furnace frame and the introduction of an inductor; use of high-quality materials; · charge preparation and reduction of its premelting time, complex deoxidation of steels with the use of master alloy FS30RZMZ0; · introduction of a device for thermostating samples of hot magnetic induction; · float control of nitrogen and aging mode of parts after hardening.
Shingu, Mechanical alloying, Journal of the Japan Society for Technology of Plasticity 32-368 (1991) 1116-1120