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A previously performed statistical analysis of the propagation conditions of the combustion front for a number of systems [7] made it possible to establish that the conditions in which the synthesis process takes place, or the control criterion K0, can be described by the following expression: К0 = f(а, в, с, Ci, ха, τ, V, L, F, Q, Kq), (1) where а, в, с – the geometric parameters of the system under consideration (m); Ci – the concentration of the fuel of the i-th component in the system; xa – material balance for irreversible first-order reaction (J/mol); τ – the time during which the speed is achieved, providing thermal ignition, i.e. the induction period of thermal ignition (c); V – the propagation velocity of the combustion front (m/s); L – the length of the combustion front (m); F – factor of the direction of the flame front movement; Q – thermal pulse initiating ignition of the system under consideration (J); Kq – coefficient characterizing the properties
Krukovskii, Structural characteristics of copper nanoparticles produced by the electric explosion of wires with different structures of metal grains, Curr.

According to the reference pattern of Crystallography Open Database (COD) number 99-200-2844, the crystal structure of samples SrIn0.1Fe(11.9-x)Snx/2Znx/2O19 powder are polycrystalline with single phase.
As reported, the decreasing Hc influenced by many factors such as size of magnetic domains, grain size, anisotropy constant, and saturation magnetization [15].

The light was generated from needles of single crystal gallium nitride or from spots near the interface of the sapphire substrate that seemed to correlate with grain boundaries.
The technology of SiC crystal growth via sublimation is a complex process in which a number of parameters have to be controlled.

- By increasing the number of specimens in the separated testing groups the reliability of results and conclusions can be also increased
Kömi, Comparison of impact toughness in simulated coarse-grained heat-affected zone of Al-deoxidized and Ti-deoxidized offshore steels, Metals, 11, 1783 (2021) [14] M.

Studies have reported the conclusion of surface roughness of many grades of aluminum alloy for a number of machining processes, but no researcher had studied on the surface roughness in semi-solid die casted ADC12 aluminum alloy for CNC face milling process.
From the illustration we can find that the microstructure of the semi-solid die casted ADC12 aluminum alloys have globular grains and has non-dendict morphology in the solid phase.

Introduction The increasing numbers of surgical intervention who need different implants have intensified the need for developing biomaterials for long time implantation [1].
The as-cast titanium alloys present a biphasic structure, in which can be identified β-grains with a lamellar structure specific to α”.

Honing parameters Finish honing Super-finish honing step Mechanical expansion (finish) Hydraulic expansion (plateau) Axial speed (m/min) 18 11, 18, 27, 29 11, 18, 27, 29 Rotation speed (rpm) 160 58, 85, 135, 160, 170 58, 85, 135, 160, 170 Honing duration (sec) 20 12 7 Expansion type Mechanical Mechanical Hydraulic Expansion speed (µm/s) 2-4 1.7 - Contact pressure (bar) - - 6 Number of stones 6 6 6 Abrasive grit type Silicon Carbide Silicon Carbide Silicon Carbide Grain size (µm) 107 107 30 Bond type Vitrified Vitrified Vitrified Abrasive stone Dimensions (mm x mm x mm) 6x6x70 6x6x70 6x6x70 Surface topography measurements.

Soil aggregation is influenced by a large number of factors such as changes in water content and biological activity, grass roots and hyphae development, SOM and tillage treatment.
The site is one of the most important grain-growing areas in the Sichuan Basin where more than four-fifths of the people still depend on farming.

The scale of rural residential areas has business with their provinces; the number of rural residential areas is bigger in the smaller scale of the average smaller provinces with bigger average size, the proportion of bigger scale higher.
Lessons of earthquake disaster show that housing build space should select favorable areas preferentially, such as steady stone head, flinty soil, medium hard soil with open, flat, close-grained and homogeneous etc.

The obvious broadening of peaks for the D sample (the pure SnO2) is owing to the fine grain size and defects along the particle produced in hydrothermal reaction process.
A, B, D samples are in excellent accordance with a tetragonal rutile structure (JCPDS 41-1445), which belongs to the space group P42/mnm (number 136).