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The studied raw material is sulfide copper-arsenic concentrate from Uchalinsky deposit, fineness 90%, grain-size fraction -0.075 micron.
Calculations for the Gibbs energy change, kJ/mol T, oC Reaction number 1 2 3 4 5 6 7 8 9 10 11 25 -238,2 -2669.8 -257,7 -269,5 -2369,8 -1712,1 -431,0 -1450,6 -151,1 -147,1 -122,2 55 -250,0 -2721.1 -272,1 -282,1 -2691,2 -1818,7 -456,1 -1470,6 -159,1 -154,4 -128,8 85 -261,4 -2771.8 -286,1 -294,0 -2612,4 -1923,1 -480,6 -1488,9 -166,8 -161,4 -135,1 Eh-pH Diagrams Analysis Below are Eh-pH diagrams for copper, zinc and ferrum minerals.
Acknowledgments The reported study was funded by RFBR, project number 19-38-90190/19.

Also, the existence of an extremely great number of touch-pad devices cannot be ignored.
Predictions indicate the development of an ever growing number of technological improvements within man-computer and man-robot areas of interaction.
Gielen, Adaptive mobile Web applications through fine-grained progressive enhancement, in: 3rd International Conference on Adaptive and Self-Adaptive Systems and Applications (ADAPTIVE 2011), International Academy, Research, and Industry Association (IARIA), (2011) 51-56

Ramadoss P. [1] conducted a review on considerable number of data that were collected from pervious published papers to study the correlation between compressive strength, flexural strength, and split tensile strength.
(4) Esquinas et. al [5] conducted and experimental study to investigate the effect of using fine grain wastes generated in asphalt plant on the properties of self-consolidated concrete.
A total number of 21 experimental data sets were collected from four studies which include the flexural tensile strength and splitting tensile strength of SCC.

Construction of groundwater reservoir, increasing the number of the reservoir water level fluctuation under mainland, causing the soil compression and rebound repeatedly, and producing the irreversible plastic deformation.
Porosity reduction rate with the variation of the number of cycles could reflect the impact of groundwater level lifting on the capacity of groundwater reservoir.
The microscopic mechanism of the above-mentioned law: the sand is granulated structure composed by a single grain structure which has little contact between particles.

Quenching Media 1st Region (Fast Cooling Area) 6th Region (Slow Cooling Area) Water (WQ) 7,54°C/s a 2,75°C/s b Spray (SQ) 6,02°C/s c 3,15°C/s d Air (AQ) 2,13°C/s e 1,44°C/s f Fig. 7 Microstructures of the samples after aging (a) WQ-fast cooling area, (b) WQ-slow cooling area, (c) SQ-fast cooling area, (d) SQ-slow cooling area, (e) AQ-fast cooling area, (f) AQ-slow cooling area Fine Mg2Si 7,54°C/s a 1,44°C/s b Coarse Mg2Si Fig. 8 SEM images of the samples after aging (a) WQ-fast cooling area (7,54°C/s), (b) AQ-slow cooling area (1,44°C/s) Depending on optical microscopy and SEM examinations, it can be observed that as the cooling rate decreases, the number of coarse precipitates increase (Fig. 7 and Fig. 8).
Slow cooling results in a higher number of grain boundary precipitates and a wider precipitate free zone (PFZ) [9].

The copolymer was used in making leather as tanning agent and retanning agent respectively, applied results showed that the Ts of tanned leather can reach to 75.6°C, re-tanned leather has the merits of good uniformity, fullness, softness, fine grain and non-plastic feel etc.
The stretching vibration absorption peak at 1631 cm-1 and 1348 cm-1 correspond to the symmetry and anti symmetric of carboxylate, it proves the product contains a large number of -OH and -COO-.

The characterization of SEM, TEM, AFM shown that the 1-10nm anatase TiO2 crystal grain was doped on surface of the kaolinite particles which is as like as ‘forest on the ground’.
To reduce recombination of photogenerated and extend its light absorption into the visible region, recently, there are a number of studies related to improving material photocatalytic activity such as transition metal cations doping, coupled semiconductor photocatalysts and so on.

Mathematical models were based on the equations of the balance of the number of particles by size taking into account their grinding (for the grinding stage), the balance of pores in the composite by the size (for the sintering stage).
The method of spark plasma sintering is currently one of the most promising sintering methods, providing fast and uniform heating of the composite preform and obtaining a composite with a small grain size and high mechanical properties [1-4].
In this paper, as in [8, 12, 13], we use the equation for the balance of the number of particles in the form (1) where φ is the density distribution of particles by volume; r is the volume of particles; A(r) is the function that determines the probability of the distribution of particles by size (volume) r; t is time; B(r /γ) is the distribution density of a particle of size (volume) r when crushing a particle of size γ at time t.
The basis of the mathematical model of the spark plasma sintering process is the balance equations for the number of pores in a ceramic composite according to their size

The film thicknesses were varied by controlling the numbers of coating.
A recent study found that chemiresistive semiconducting metal oxides are the most potential candidates for gas sensor because of their low cost, fast response time, high sensitivity and ability to detect large number of gases.
Numerous experiment investigations of nanostructured metal-oxide films revealed a strong increase in sensitivity when the average grain size was reduced to several nanometers.
The film thicknesses were varied by controlling the numbers of coating.

After adding up to 0.5wt% of Mn, a large number of intermetallic phases, α-Al(Mn,Fe)Si as well as fine Al6(Mn,Fe) particles were precipitated and a significant improvement in the elevated temperature properties was achieved.
After the T6 heat treatment, Cu produced a large number of �� precipitates in the matrix, however, over aging at 350� caused the transformation of the �� phase into the rod shaped Q phase, whose composition was identified as Al5Cu2Mg8Si6, and which was too coarse to strengthen the matrix[1].
The addition of Mn also produced small dispersoids consisting of Al6(Mn,Fe), which were precipitated within aluminum cells or grains.
Cu effectively improved the mechanical properties of the Al-Si piston alloys, due to the production of �� precipitates after the T6 heat treatment, as well as the Fig.5 Transmission electron micrographs of Ge added alloy showing (a) High Angle Annular Dark Field Image of �� phase on GeSi precipitates after aging at 160� for 5h ; (b) Schematic EDS diagrams of ��phase and GeSi phase ; (c) ��phase coarsening after aging at 350� for 1h formation of a large number of intermetallics, i.e.