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The pre-accelerated ageing test carried out showed that mechanical properties were higher 2:1 and 3:1 paper cement mixing ratios.
Durability is defined herein as the retention of mechanical and physical properties after exposure to the ageing process(4).
The following constant factors were observed: Board density (1200kg/m3), additive concentration (3% of cement weight), Pressing pressure (1.23N/mm2), and Board size (350 mm x 350 mm x 7 mm).
The mechanical properties (MOE and MOR) were examined after 21 days of curing; the samples sizes were cut into 195mm x 50mm x7mm.
This is evident as shown in figures 5 and 6, and the fibre property affects the flexural strength which varies with the amount of fibre .The content of cement highly influences the properties of the PCBCB.

Some parameters such as conduction, convection, thermal properties of material with temperature and gauss distribution of heat flux has been considered in the laser drilling process.
The theoretical study and simulation of laser and material effect are particularly important, not only the simulation can help get factors which affect the efficiency of the laser process, but the results of simulation can guide the actual machining process.
ANSYS version 14.5 has been used to build the thermal mathematical model of the laser process, and the model considered important factors of the laser process such as conduction, convection, thermal properties of material with temperature and gauss distribution of heat flux in order to analyze the temperature distribution of stainless steel workpiece.
The interaction process between laser and material is very complicated and there is a lot of factors influencing the drilling process[3].
Not all the factors can be considered in the simulation and some assumptions need to be made to simplify the model.

Meanwhile incorporation of nanoclay MMT improved the tensile and flexural properties but reducing the impact properties. 1.
Many types of EVA properties based nanocomposites have been prepared by melt extrusion technique were reported and showed that the polar VA group in EVA can affect the dispersion and interaction of nanoparticles within EVA [5].
According to McCullen et al.,[8] MMT nanoclay has potential to improve the mechanical properties of the polymer matrix substantially even with a low level of clay loading.
One of the crucial factors to be considered for the preparation of polymer/clay nanocomposites is the optimum clay content that should be added because exceeding the optimum clay content will drop the mechanical properties due to the agglomeration of nanoclays at higher concentrations [8].
Carbon nanotube-polymer composites: Chemistry, processing, mechanical and electrical properties, Progress In Polymer Science 2010; 35(3): 357-401

The factors working on chemical reaction affect the formation in the same.
Introduction Amorphous alloys are expressly concerned by vast number of scientific and technological researchers because of its excellent mechanical properties.
Three factors effecting on amorphous formation have been clarified as main elements [6,7].
The deposition is in better performance with complex properties of co-metal atoms.
The combination will be affected by outside conditions as main factors, but the atom outside electronic shell is crucial gene for the formation.

Casting defects due to inappropriate mold design will affect mechanical properties, surface quality and product life cycle.
Casting Defects Casting defects reduce mechanical properties and surface quality of product, hence declining factory productivity.
Casting Defect Factors.
Casting Defect on Mechanical Properties.
The damages are identified such as defective surface quality, faulty component and deficient mechanical properties.

These results indicate advantage crosslinking of the improved mechanical properties.
The factors affecting the changes of polyethylene by irradiation are the molecular weight distribution, branching, degree of unsaturation, and morphology. [1-3] The aim of this paper is to study the effect of ionizing radiation with different doses, on micro-mechanical properties of polythelyne (LLDPE) and compare these results with those of non-irradiated samples.
The micro-mechanical properties of surface layer of LLDPE modified by beta radiation improved significantly.
The highest values of micro-mechanical properties were reached at radiation dose of 99 kGy.
It also proved the fact that higher doses of radiation do not have very positive effects on the micro-mechanical properties, on the contrary due to degradation processes the properties deteriorate.

Factors such as type of fibers, percentage of fibers, length of fibers and distribution of fibers inside the bricks have significant effect on mechanical, physical and thermal properties of biobased composite materials.
It can be observed by tests such as indirect tensile strength, compressive strength for mechanical characteristics, density, shrinkage, color for physical properties, thermal conductivity and resistivity for thermal properties, and inundation test for durability of crude bricks.
Physical properties of bricks are studied through density and shrinkage.
Thermal properties are studied with thermal conductivity and resistivity test.
The mechanical and physical properties of unfired earth bricks stabilized with gypsum and Elazıg ̆Ferrochrome slag.

Introduction Surface morphology is the main control factor of the mechanical properties of rock joints [1, 2].
In order to calculate the parameter statistics for different scales of surface morphology and get the average statistics through model tests, the objective of this article is to provide a technical guarantee for choosing samples, which is based on main influencing factors of sampling representativeness and statistical data of JRC in the tests.
Main influencing factors of sampling representativeness The more JRC approaches to the average statistical value of the whole structural plane, the better sampling representativeness is.
However, the feature of rock joints surface morphology affects the sampling representativeness, such as non-uniformity, anisotropy, anisotropism and scale effect.
When the mechanical properties of rock joints were evaluated by JRC for higher or lower, more errors would be caused; therefore, it is necessary to evaluate the sampling representativeness of rock joints in engineering practice.

Thermal equilibrium model There are lots of factors in affecting the fuze temperature, besides the flight conditions, external and internal heated environment, it can always associate with the body shape, structure and material properties.
Aero-dynamic dominates the factors.
a) The original model b) The finite element model Fig. 5 Because of the wide band of transient load temperature, we cannot ignore the temperature-sensitive factor of material parameters.
The material properties are showed as follows: Table 2 Material parameters Temperature °C E Gpa Y Gpa S Gpa C W/(m .
Through the above analysis, centrifugal claws, escapement Wheel Gear have the maximum displacement of 1.028e- 05 m, as shown in table 3, and its deformation is very small, as a mechanical fuze will not be affected.

It is understand that COF value may be depends on the other factors such as surface roughness, alloy composition and temperature of the specimen.
It is seen from the figure that the COF do not get affected with increase in the sliding velocity since as stated above the COF value depends on the other factors such as surface roughness, alloy composition and temperature of the specimen.
Pürçek, Effect of copper content on the mechanical and sliding wear properties of monotectoid-based zinc-aluminium-copper alloys. 
Savaşkan, Mechanical and tribological properties of Al–40Zn–Cu alloys. 
Savaşkan, Mechanical and tribological properties of Al–40Zn–Cu alloys, Tribology international, 42 (1), (2009), 176