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Problem statement There are quantitative differences in the experimental data presented by a number of authors [2, 4, 6, 8, 11, 15, 19] as to the effect of elevated temperatures on the characteristics of the mechanical properties of heavy concrete.
The results of the research during short-term heating up to +200°C show quite a significant difference in determining concrete strength characteristics by a number of authors.
Physical-mechanical properties of the modified fine-grained concrete subjected to thermal effects up to 200°С (2014) Applied Mechanics and Materials, 633-634, pp. 1013-1017

Regression prediction model about the relationship between summer rainfall and grain production was established in [7].
We use the mutation method as follows to avoid infeasible solutions: given mutation probability , bit by bit operate individual as follows: , (5) is a random number in [-1,1], is a random number with normal distribution .

When the concentration of PMMA is less than 17%, the number of beads will gradually increase with the addition of DMF in the mixture solvent.
But in any proportion of EA and DMF, the number of beads is decreased with the increase of PMMA concentration.
In electrostatic spinning process, with the evaporation of the solvent, the rare earth complexes recrystallization, but time is shorter, the grain size increases too slow, that is limited between the molecular chain of the PMMA.

It can be seen that 13%Cr stainless steel has tempered sorbite with fine grain size and its cementite is granular structure not laminate structure.
It is due to the characteristics during buttress thread turning process as mentioned above. 0 10 20 30 40 50 0.05 0.10 0.15 0.20 Number of threads Insert A Insert B VB (mm) 0 10 20 30 40 50 0.00 0.05 0.10 0.15 Number of threads Insert A Insert B VB (mm) (a) Left edge (b) Right edge Fig. 8 Curves of flank wear on left and right cutting edges Chip Breakage.

Firstly, the number of the tailings dam is huge.
It is showed that the number of dam-break is maximum (57%).
Analysis of fine grain of tailings dams and stability[M].

The data set for this network consists of 5 inputs, including Ti, Zr, Nb, and Ta, and a total number of 123 points.
The alloy in the solution-treated condition showed course equiaxed β grains with some remaining features of dendritic morphology.
Although the lack of an experimental data set, the present network has achieved good performance due to the accurate selection of network parameters such as the number of neurons and hidden layers.

First, the odd-numbered outer dies and the inner dies press the trial tube and return to the starting position.
Second, the even-numbered outer dies and the inner dies press the trial tube, and then all of the dies return to the starting position.
Xu, Microstructure texture and grain boundaries character distribution evolution of ferritic stainless steel during rolling process, Journal of Materials Processing Technology, Volume 209 (2009), 2627-2631 [15] Y.

In this way, the acquired grading curve would essentially reflect the grain size characteristics of construction waste and the construction waste grading curve is shown in Fig.1.
Most of the particles are bigger than size 10mm, bulky ones are relatively concentrated and smaller ones are of small number which is not even enough for filling the void created by coarse particles, resulting in an adverse structure of smaller granules “suspending” in a vast sea of coarse particles [1].
Given the relatively smaller number of chunk material in construction waste, backward spreading is adopted.

Introduction The strengthening mechanism of second-phase particles in steel mainly includes precipitation strengthening and fine grain strengthening.
When the steel temperature reached 1600 ºC, kept it for 10 minutes; (2) Taken 0 # steel sample (original steel sample); (3) Quartz tube inserted into the bottom of molten steel, following a certain volume (about 0.2 L/min) argon as the carrying gas, a certain sized of MgO·Al2O3 spinel powder with 1.0 g was sprayed into the steel; (4) The beginning of time (0min); (5) Taken 1 # steel sample after 1 min; (6) Taken 2 # steel sample after 10 min; (7) In accordance with the above (3) - (6) steps to continue the spraying experiment, the steel samples obtained by sequence number until the total spraying quantity reached to 5 g.
The total number of inclusions decreases with the increasing size of sparying powder, and the average particle size of inclusion increases with the increasing size of sparying powder, while the total area of inclusions changes little.

Select the numbers of those uniform-grained specimens without serious defects as test materials.
However, a too high salt concentration will lead to aggregation or precipitation of dye in the solution and in the process of fixation, a large number of Cl ions will hinder the affinity substitution reaction between dye molecules and fiber, thereby decreasing dyeing effects.