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Table 2 shows the physical properties of graphite electrodes with designation EX – 60 [8].
Table 2 Physical properties of the graphite with designation EX – 60[7] Density [g.cm-3] Hardness [Shore] Specific Resistance [Ω.m.10-6] Tensile Strength [MPa] Compressive strength [MPa] Typical Grain Size [μm] 1.8 62 13 80 140 10 Properties of copper electrodes.
Table 3 shows the chemical and physical properties of copper EN Cu-ETP (DIN E-Cu 58).
This method allows to assess the level of importance of the individual factors affecting the manufacturing process.
Evaluation of the effect of factors.

The strength of soil is one of the important soil mechanical properties.
SWCC of an unsaturated silty sand Essentially, the difference between the unsaturated soil and saturated soil is the existing of matrix suction, which is the critical index controlling the shear strength of unsaturated soil, affecting the mechanical properties of unsaturated soil directly.
As a result, the SWCC is crucially important to the mechanical properties of unsaturated soil.
Table 1 shows the basic physical properties of soils.
The decreasing of suction effect area and (a) moisture content30% (b) moisture content 20% Fig.5 Microcosmic structure of the soil samples the increasing of suction formation of two growth and decline factors affect the shear strength of unsaturated silty sand.

Results and discussion Microstructure and mechanical properties.
Table 2 show a summary of the mechanical properties obtained from the curves of Fig. 4.
These ratios are obtained from comparing the mechanical properties obtained in the NS4 solution with the mechanical properties obtained in the controlled environment (air).
Mechanical properties obtained from the SSR tests to assess the SCC.
The material susceptibility to SCC depends of many factors such as elemental composition, metallurgical factors, inclusions content, mechanical properties, physicochemical environment, pH and residual stresses mainly [15].

It is clear that these materials must display particularly suitable mechanical, physical and chemical properties.
The high mechanical properties of biocompatible metals and their alloys make them well-suited as long-term implants in osseous system surgery.
On the side of the implant, the main affecting factors include: chemical constitution, material homogeneity, implant surface quality; composition, type and thickness of protective layers (bioglass, hydroxyapatite, etc.) size and shape of the implant, the process of implantation and adjustment of the implant to accommodate natural anatomy.
The process of differentiation of osteogenic cells is highly complex and can be affected by various physical and chemical microenvironmental factors (pressure, mechanical forces, growth stimulation agents, etc.) which cannot all be determined at this time. [1, 6] The integration and healing of implants is also affected by outer surface coarseness.
Part 1: Compaction, sintering behaviour and properties.

The factors influencing the formation of efflorescence of construction materials are studied insufficiently in terms of chemical and physical processes that occur during the operation of construction products.
Efflorescence may accumulate under some less permeable decorative paint layers and cause their peeling from the surface of a building structure, its decorative properties being completely lost.
The factors influencing the formation of efflorescence of construction materials given in technical literature [2-5] are connected with the increased solubility of the ingredients of construction materials.
Efflorescence may accumulate under some less permeable decorative paint layers and cause their peeling from the surface of a building structure, its decorative properties being completely lost.
Efflorescence in vibropressed pavers does not affect the mechanical properties and the structure of set cement in pavers, as this efflorescence in the second year of operation does not resume due to the carbonation of calcium hydroxide and reforming it into an insoluble calcium carbonate in the structure of set cement.

Carbon nanotube has attracted tremendous scientific and industrial interests due to its exceptional mechanical, electrical and thermal properties.
Intensive experimental and theoretical researches have been conducted on the mechanical properties of carbon nanotubes [3-7].
Lin et al. [13] investigated the mechanical properties and dynamic behaviors of carbon nanotubes with vacancies and related defects.
It is found that the introduction of atomic vacancies will greatly affect the mechanical properties of carbon nanotubes under axial compression.
Lorents, “Mechanical and thermal properties of carbon nanotubes,” Carbon, vol. 33, pp. 925-930, 1995

This paper dealt with the fabricating process of liquid phase sintered (LPS) SiC ceramics containing the oxide additives of Al2O3 and Y2O3, in conjunction with the evaluation of their mechanical properties.
The oxide additive materials such as Al2O3, Y2O3, CaO and SiO2 were used for the improvement of sintering density and the reduction of sintering temperature in the production of LPS-SiC ceramics. [6-8] The induction of submicrosize or nanosize SiC particle for the control of grain size is tried to improve the mechanical properties of LPS-SiC ceramics. [5] The purpose of present study is to investigate the effect of composition ratio of additives (Al2O3/ Y2O3) on the characterization of LPS-SiC ceramics, in conjunction with the detailed analysis of their microstructure and mechanical property.
Fig. 1 shows the effect of additive composition ratio (Al2O3/Y2O3) on the mechanical properties of LPS-SiC ceramics.
Fig. 1 Effect of additive composition ratio on the mechanical properties of LPS-SiC ceramics.
Summary The density and the mechanical property of LPS-SiC ceramics were greatly affected by the compositional ratio of additive materials (Al2O3/Y2O3).

This paper describes structures and properties of the medical ultrasonic transducer, and a variety of quantitative indicators that influence its performance.
Form the above formula, electromechanical coupling efficiency can be used as the comprehensive indicator. 8) Mechanical quality factor Qm Mechanical quality factor Qm is the ratio of the stored energy and the consumed energy by piezoelectric in unit time.
By doping, substituting, changing the materials and so on, the piezoelectric properties can be adjusted to a wide range and obtain the performance of special requirements.
However, BNT ceramics is difficult to polarization and not easy to get high piezoelectric properties.
Conclution This paper describes structures and properties of the medical ultrasonic transducer, and a variety of quantitative indicators that influence its performance.

Except under the control of the geological conditions, the inducing factors of all kinds of landslide was mainly affected by rainfall effect and human engineering activities [1].
The landslide is in the left bank of Gao Lan river in three gorges reservoir area of HuBei province, the landslide is in basically stable state at present, but the landslide may lose stability under the heavy rain, once the landslide occurs, it will seriously influence the learning, living ,life and property security of more than 100 teachers and the students in the school in the leading edge of the landslide firstly; it seriously threaten people's life and property security in front of the landslide secondly ;it seriously affect the safety of S312 provincial highway and the people passing by thirdly, so the stability analysis of the landslide is very important.
Therefore, the landform is a important factor for the landslide to form.
Based on the " Code for investigation of geotechnical engineering " (GB50021-2001)[7], this paper using transfer coefficient method to calculate the stability factor and surplus sliding force.
[3] Haohao Ma, Baojian Liu, Beibei Yao, Effects and Mechanism Analysis of Water on Mechanical Properties of Rocks and Slope Stability[J],South-to-North Water Transfers and Water Science & Technology，2012，10(4): 86-89

The primary aim of the study is to improve mechanical properties of the scaffold by introducing the fiber with uniform component relative to the scaffold.
The primary aim of the study was to improve the mechanical properties of the scaffold by introducing the fiber uniform component relative to the scaffold. 2.
Scaffolds with different pore size and connectivity could affect such transport properties.
The fiber introduction and PFA addition were shown to influence the mechanical properties of reinforced ceramic block differently.
The addition of HA fiber can enhance the mechanical properties among samples and also the strength for a given open porosity.