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The influencing factors of wax deposition on the pipe wall The composition of crude oil.
Tests showed that the wax deposition is also affected by the water in crude oil.
The surface properties of the pipe wall or the coating have direct effect on the number of crystallization centers and the ease of crystallization.
For running pipeline, wax deposition influenced by the combined effect of the above factors.
And its main influencing factors are: the composition of crude oil, oil temperature, the temperature difference between crude oil and pipe wall, oil flow velocity, pipeline material, the relationship between wax deposition layer thickness and the run time and the combined effect of these factors.

Research parameters, such as dimension, compressive and flexural strength, density, and water absorption, are adopted to evaluate the physical and mechanical properties of the brick specimens.
However, the increasing awareness on environmental protection and the drive to reduce greenhouse gas emissions are emerging as challenging issues affecting the production of construction mineral, such as natural aggregates.
All these factors may result in the continuous reduction of mining and quarrying activities and a shortage of natural sand, thus increasing the prices of raw materials.
Results and Discussions Physical and Mechanical Properties of Bricks.
The test results on properties of bricks are listed in Table 6.

Fatigue damage mechanism and main factors that affect fatigue strength of welded structures are analysis and summarized respectively.
This paper emphasizes on introducing the research progress of various measures to improve the fatigue properties of welded structures presently.
Major Factors Affect the Fatigue Strength Fusion welding is widely used in the manufacture of welded structures, filler metal is usually need, excess weld metal, pit and various weld defects are left at the joints.
Several the following factors that affect the fatigue strength of welded joints and structures will be expounded.
In addition, mechanical property of materials has some effect on crack propagation rate, but not great.

The mechanical property was examined using tensile test.
The microstructure and mechanical properties of the IF steel annealed in CCA and UFA were investigated.
According to the ASTM standard, the mechanical properties were performed on a CMT 5105(SANS) universal testing machine with a draw speed of 1 mm/min.
Mechanical Properties.
The mechanical properties of annealed specimens are given in Table 2.

Hydrostatic stress and stress triaxiality factors will be presented and analysed in this paper, because they can affect the cell expansion and material’s property.
Hydrostatic pressure can affect both the material’s ductility and yield strength.
Results and Discussion Triaxiality factors in the lotus root cross section.
Triaxiality factors in the four models To further analyse the triaxiality factors in the lotus root cross section, the triaxiality factors are divided into six bands.
Triaxiality factors and hydrostatic stress affect material’s behaviour in engineering components.

This study aimed to determine the significant factors affecting surface roughness and to obtain the optimal machining operation in turning process.
Over decades, many researchers have investigated the effects of machining factors on the quality characteristics and the mechanical properties of the machined part using design of experiments (DOE) and response surface methodology (RSM).
Thomas and Antony (2004) used this method to identify the significant factors affecting the joint strength of honeycomb composite tongue and slot joints for aerospace applications [7].
Identify machining factors affecting surface roughness and assign two levels to each machining factor (existing level (-) and proposed level (+)) 2.
This implied that factor A (i.e., set of the cutting tool angle) was the only significant factor affecting average surface roughness.

The physical and mechanical properties of the Yellow River alluvial silt The composition characteristics of the Yellow River alluvial soil.
In order to study the physical and mechanical properties of the Yellow River alluvial silt, we must confirm soil particle composition characteristics firstly.
The soil properties of the Yellow River alluvial silt.
But the difference of mechanical properties is small.
There are many factors affecting the soil compaction.

Effects of technological parameters of thermo mechanical control process (TMCP) on microstructure and mechanical properties of the API X60 pipeline steels have been investigated.
The parameters of TMCP for obtaining better mechanical properties are given.
Effect of TMCP on Properties.
In some cases, it can reflect the result of accumulated deformation, so it is related to the mechanical properties.
Conclusion The TMCP parameters affect the microstructure and properties of the API X60 pipeline steels greatly.

Mineral component and pore space topology are the most important physical factors affecting the soil-water characteristic, and that dry density synthetically reflects the mineral component and pore space topology.
Research results show that the soil-water characteristic curves for all dry density soil intersect at the point, which is optimize moisture content, and suction is the most important factor affecting the compaction.
Compaction is a classical application involving unsaturated soil, the purpose is to improve the mechanical and hydraulic properties of soil.
The relationship between moisture content and matrix suction is affected by such factors as the soil types, the material composition, the pore structure and temperature etc, therefore, the SWCC can not be got by theoretical analysis based on unsaturated soils’ basic properties(such as capillary features, permeability and hydraulic properties).
The mineral composition, particle shape and gradation, density and different dry wet path even different times of the dry wet cycle of soil are the important factors of SWCC, but mineral composition and pore structure are the main factors of SWCC.

In order to improve the mechanical properties of FSW joint, many studies have been performed on welding procedure and microstructure of joint, and many researchers have explored the thermomechanical numerical simulation technology of FSW.
In this paper, fatigue tests and finite element analysis (FEA) were employed to study the fatigue properties of 2524-T3 FSW joint.
This result is basically identical with the experimental one, means that the residual stress is the main factor affecting the fatigue life of FSW joint.
Conclusions This paper has studied the residual stresses and fatigue properties of aerial aluminum alloy 2524-T3 FSW joint.
Result shows that the residual stress is the main factor affecting the fatigue life of FSW joint.