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This paper presents the mechanical properties of a lightweight geopolymer concrete synthesized by the alkali-activation of a fly ash source (FA) produced by mixing a paste of geopolymer with foam produced by using NCT Foam Generator.
Production of stable foam concrete mix is depends on many factors such as the selection of foaming agent, the method used to prepare the foam to obtain uniform distribution of air pores, choice of materials, mix design strategies, and the processing of foam concrete [2].
According Nehdi [9], typically a trial and error method adopted to achieve concrete foam with the desired properties.
Morris: The Influence of Mix Design on the Properties of Microcellular Concrete.
Development and Properties of Low-calcium Fly ash-based geopolymer concrete.

Modal models are commonly encountered forms of dynamic characterization of mechanical structures.
Due to the best statistical properties relating to the measurement specificity, H1 estimator is most often referred to [2].
The example set of natural frequencies and modal-dumping factors related to them is presented in the table 1.
As it has been discussed before, it is assumed that the excitation is a white noise affecting evenly the whole structure.
Methods discussed above were applied for the identification of dynamic properties of foundations and cantilever structure of turbo-generator.

In addition, the mechanical properties of concrete mixed with three different PCEs and their effects on the early hydration process and phase composition of hydration products were also investigated in detail.
Properties of cement paste.
The compressive strength of hardened concrete was measured after 3,7and 28 days of standard curing according to GB/T50081-2019 (Standard for test methods of concrete physical and mechanical properties).
Properties of concrete with PCEs.
As know, the importance of concrete workability could not be ignored, and the slump and slump retention ability were the very important factors to measure the concrete workability [36,37].

The magnetic and mechanical properties of the magnets Fe-Nd-B system are more dependent on the size and shape of the grain structure.
Alloying the alloy with transition and rare-earth metals and boron group metals affects the crystallographic parameters of the structure, changes the electronic structure of the alloy, and ensures the formation of high-level magnetic properties [1-3].
The magnetic properties of the material and products from such an alloy are sensitive to the type of grain structure and grain size [4].
Influence of Nd Doping on the Magnetic Properties of Nd2Fe14B/α-Fe Nanocomposite Magnets, Materials Science Forum. 809-810 (2015) 88-92
Effect of Boron on Magnetic Properties and Corrosion Resistance of High Energy Magnets, Advanced Materials Research. 79-82 (2009) 1043-1046

Table 1 Factors and levels of orthogonal design Factors v[m/min] fz[mm/z] ap[mm] ae[mm] Level 1 120 0.08 0.6 16 Level 2 160 0.12 0.9 24 Level 3 200 0.16 1.2 32 Level 4 240 0.2 1.5 40 Results and discussion Surface roughness.
The level of other factors can be decided with consideration of other performance measure.
Fig. 1 Relationship between roughness and four factors Cutting force.
The influence of every level of all the factors on the cutting force can be seen in Fig. 2.
Fig. 2 Relationship between cutting force and four factors The factors that can affect cutting force in face milling include cutter geometries, work piece properties and all kinds of cutting parameters, so it is difficult to build accurate cutting force model for the face milling process.

In practical applications , due to the impact of air resistance and gravity during the flight by such factors as the projectile at launch , tend to produce yaw phenomenon , that is the practical application of projectile penetrating the vast majority with dip angle of attack and penetration .
And the inclination angle of attack will lead to the presence of penetrating ballistic deflection , seriously affecting the penetration depth and overload law elastomers and elastomer has the potential to withstand the high lateral loads and damage even ricochet phenomenon [ 1 ] .
Projectile Penetrating Concrete is a complex mechanical process transient .
Therefore, the actual properties of tensile compressive strength of concrete is not in numerical simulation of projectile impact on concrete targets on tensile failure must be properly considered in order to obtain results with the actual match .
Model Concrete with plastic , crushing many complex mechanical behavior , such as cracking , projectile and concrete are used eight-node hexahedral solid elements (SOLID164), with a single point of integration LAGLANGE algorithm.

Furthermore, corrosion tests were carried out to assess the effects of solutions (Ringer's solution and table salt (NaCl)) and immersion time on mechanical properties prior to and after corrosion testing [7].
Surface science is very interested in the adsorption of organic molecules at the metal/solution interfaces because it can drastically change the properties of metals' corrosion resistance [11].
In a recent study by Shahini et al. [22], the inhibitive properties of Nepeta Pogonesperma extract were examined in a 1 mol/L HCl solution.
However, it is worth noting that other factors are equally decisive in creating sustainable and robust corrosion protection, e.g., temperature, metal characteristics, solution corrosiveness, and type of inhibitor.
Al Hifadhi, “Effects of Heat Treatment on the Corrosion and Mechanical Properties of Stainless Steel 316L as Used in Biomedical Applications Effects of Heat Treatment on the Corrosion and Mechanical Properties of Stainless Steel 316L as Used in Biomedical Applications,” in 4th International Conference on Engineering Sciences (ICES 2020, 2020. doi: 10.1088/1757-899X/1067/1/012142

Introduction Steel is an important industrial product and an essential raw material in daily life, mechanical manufacturing, and the defense industry.
These defects can reduce the strength, performance, and wear resistance of steel, affecting normal use and even potentially causing serious consequences [1].
Manual defect detection can lead to inefficient detection and subjective factors that affect detection accuracy.
Multiple parameters need to be constantly adjusted according to changes in environmental factors, or even the entire algorithm needs to be redesigned.
Intriguing properties of vision transformers[J].

Disorder and thermal of contact potential in the contacts affect the measurement signal and converting precision.
It will directly affect measurement signal and measurement accuracy [1].
This system satisfies the requirement of large quantities and remote spot signals acquisition and analysis with stable properties.
Based on an overall consideration of various factors, OP07 is selected as the operational amplifier.
Distributed capacitance of long-wire and insulation resistance variation due to humidity can affect micro-strain measurement accuracy when measuring micro-strain of large structures.

These defects have their origin mainly in the technological process of a production but they can be caused by an accidental mechanical stress during a normal operation, too.
Experimental Samples properties.
The front Ag fingers are prepared by a roll-to-roll screen printing [3].The c-Si samples are segmented by a mechanical breaking into the fragments.
The important factor having an impact on the best edge quality is grinding and polishing of the edges at an angle of ∼ 45° inside the water bath and under a constant pressure.
The lower limit of this range is affected by an option of the analyser alone and the upper limit is affected by a frequency response of the amplifier, but it does not constitute a restriction for our experiments.