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(1) The mechanical properties of plaster depend on powder-to-water ratio (or liquid/powder ratio; L/P ratio), curing time, temperature and pressure, and on post-cure heat treatment [9].
Compressive strength of Plaster of Paris/paper sludge ash composites Obviously, the main factor responsible for the decrease in the strength for all composites especially composite E is the decrease in Plaster of Paris content or inversely, the increase in ash content.
Furthermore, compressive strength would also be affected in the presence of porosity in the Plaster of Paris/paper sludge ash composite.
Composite B with 99 wt.% Plaster of Paris powder and 1 wt.% paper sludge ash has a compressive strength of 8.55 MPa and density of 1.59 gcm-3 shows a promising properties as a construction material.

Different toughening mechanisms have been proposed by many researchers like microcrack, crazing-shear banding, and cavitation. [2, 3] D.R.Paul and his co-workers [8] had studied the effect of MMT and rubber contents on the properties and morphology of PA6/MMT /EPR-g-MA nanocomposites, and found that rubber particles appropriately dispersed within a neat nylon 6 matrix could increase toughness via cavitation which relieves the triaxial stress state ahead of the advancing crack tip and allows the nylon 6 matrix to shear yield and thereby dissipate more energy.
In this paper, the mechanical properties and impact fracture morphology and crack tips of PA6 based composites were investigated.
It reveals that fillers and compounding routes strongly affects the impact behavior of composites.
Compounding route is anther important influencing factor.

In GO these oxygen functionalites greatly weaken the interactions of adjacent layers, thus permitting the facile exfoliation of GO down to mono- or few-layer graphene oxide nanosheets (GOs) by mild sonication or mechanical stirring in water, and the formation of kinetically stable colloidal suspensions.
Recent studies have shown that the chemical and physical properties of GO and its derivates facilitate their use as effective absorbents for humic acid, Cu2+, and arsenate from contaminated drinking water, suggesting enormous potential for these materials in the field of environmental remediation [8-10].
GO is a non-stoichiometric compound and shows variable structural features that directly determine its properties under different preparation conditions.
However, few investigations have described the influence of synthesis conditions on the oxidation level of GO, as well as on the dispersibility of GO in aqueous medium, which is an essential factor in the applications.
Additionally, the measurement of heights can also be affected by the presence of water layers on the sample surface [14].

The principle of operation of a resonant testing machine is based on the idea of ​​a mechanical resonator with a three-mass vibration system.
An example of delamination of the specimen during testing Thus, a change in the loading frequency of the specimen is an effective factor in determining the occurrence of cracks in the specimen and indirectly estimation of damage level.
Nevertheless, the thermal state of the specimens even in tests with the highest load (27% of σ0) remains satisfactory - the maximum temperature in the heating zone does not exceed 40° C, which does not lead to a decrease in the strength properties of the polymer matrix.
Of course, it does not affect the entire theme of this area.
Barbero, Javier Cabrera Barbero, Determination of material properties for progressive damage analysis of carbon/epoxy laminates, Mechanics of Advanced Materials and Structures, Volume 26, 2019, p.938-947 [15] Garcea SC, Wang Y, Withers PJ.

Introduction Nanostructured one dimensional titanium oxides such as nanotubes have raised interest recently due to its light weight, corrosion resistant, excellent mechanical and unique electronic and optical properties [1].
TiO2 nanotube layers has been shown to have a natural ability to join with human bone and have harmonizing factor with the human bone, hence forming good biocompatible orthopedic material which provides an excellent physical bonding with the surface of bone [3].
Moreover, experimental conditions and methods employed to assess cellular activities might also affect the results [14].
MCF-7 cell viability decreased with time when grown on nanotube with 90 nm diameter, showing the anti-proliferation property of this latter.
In addition, nanotubes with these specifications would prevent cancer cells from growing with the anti-proliferation property the nanotubes possess.

To make the analysis closer to the actual working conditions, a dynamic load factor is multiplied to correct it.
Mechanical Design, 2005, 22 ( 11 ) :26-28
[4] Feng Xiong, Sensibility Analysis of Mechanical and Geometrical Parameters On Soil Slope Stability[J] .
[5] Xianghua Liu, Kaifeng Zhang and Mingzhe Li, Finite Element Analysis of Dynamic Property of Agricultural Vehicle Frame[J] .
Mechanical Design, 2007, 24 ( 4 ) :60-62.

Therefore, the structure of the molten metal has an important influence on its structure and properties after solidification.
The change of the physical properties of the melt can indirectly reflect the change law of the melt structure.
Resistivity is one of the sensitive physical properties of the metal melt structure, and it reflects the transport properties of electrons.
The influence of the local structure of the body, molecular dynamics can simulate many properties of the metal melt, and it has huge application prospects in revealing the structure evolution of the metal melt, the amorphous tendency and the calculation of thermodynamic properties.
These results show that the cluster model can describe the structural properties of pure metal melts well.

The reason being that no matter how efficient and better quality of fuel we produce, it will always burn ending up in affecting our already endangered levels of breathable environment.
In 1936, PTC was used with steam engine to produce mechanical power.
Solar absorption strongly depends on the uniform distribution and suitable size of the metal inclusions in the dielectric, the particle size orientation, the metal volume fraction, as well as other factors. 5.
Another advantage was that these organic salts can be synthesized to have specific properties desirable for solar application [7].  
Therefore, another property of the working fluid is essential, properties like latent heat storage is also to be studied.

Besides states of the Ge NCs, the interface levels between SiOx/Si and Ge/SiOx, with x ≤ 2, play a crucial role in transport properties of Ge-NC/SiOx/Si heterostructures.
The band formation was ascribed to the presence of Ge NCs on silicon oxide surface affecting the energy structure in lateral and transversal direction.
Saf’yanov, Photoluminescence and transport properties of multilayer InAs/GaAs structures with quantum dots, Semiconductors, 33 (1999), 318-322
Efros, Electronic Properties of Doped Semiconductors (Springer, Berlin, 1984)
Stern, Electronic properties of two-dimensional systems, Rev.

Although pure Mg metal is seldom employed directly as a structural material because of its poor mechanical properties and corrosion resistance, it’s still important to investigate it because it is the matrix to form all the Mg-based alloys.
A number of factors were considered to be responsible for the porosity[2].
In addition, associated with the inherent inhomogeneity of electric and chemical properties of metal substrate, neither NOF nor the ceramic coating formed at any moment was absolutely uniform in thickness and microstructure.
It’s noticeable that some other factors including standard equilibrium potentials of electrode reactions involved, polarization effects and solution resistance, etc, also exerted influences upon the voltage transient.
Its thickness increased with oxidizing time before it was affected by dielectric breakdown[11].