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Physical and mechanical properties of soft rock.
Expansion of soft rock refers to soft rock under physical, chemical, mechanical and other factors, the volume changes.
Soft rock disintegration is phenomenon of soft rock produced sheet disintegration under factors of physical, chemical, mechanical.
Three- above types of mechanical mechanism of soft rock deformation generalized main cause on deformation of expansive soft rock, the main factors which can affect the deformation of surrounding rock and support as follows.
Lithologic factors. strength of rock mass, structure, degree of cementation and The performance of cements, content of expanded minerals, which are internal factors affecting deformation of soft rock roadway.

Low-temperature cracking analysis of asphalt pavement LI Zhaoshenga, TAN Yiqiub School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, P.R.China alizhaoshenghit@163.com, byiqiutan@163.com Keywords: asphalt pavement; low-temperature performance; temperature shrinkage coefficient Abstract: Establish the mechanical model of asphalt pavement low-temperature cracking, analysis the factors leading to cracking.
The factors such as shrinkage coefficient of asphalt pavement, temperature stress, pavement structure combination forms and temperature contribution affect the asphalt pavement on cracking behavior.
The paper analyzes the factors leading to cracking at low temperature and focuses on the effect of different aggregate gradation on temperature shrinkage coefficient.
Conclusion According to the energy method analyze the factors affect asphalt pavement on cracking at low temperature, the factors include the temperature shrinkage coefficient of asphalt mixture, temperature stress, the combination forms of the pavement structure and temperature distribution.
Analyze the effect of gradation on asphalt mixture properties of shrinkage at low temperature, for the same skeleton type, the smaller average grain diameter is, the larger shrinkage deformation of asphalt mixture is at low temperature; in order to improve the properties of asphalt mixture resistance to cracking, improving the coarse aggregate consumption can be adopted to form coarse skeleton dense structure and reduce the shrinkage coefficient at low temperature.

Primary factors affecting the quality of friction stir welding are the material of the parts to be welded, implicitly their chemical composition and mechanical properties.
It has been observed that mechanical properties can be further improved by implementing water cooling during the process, which reduces heat input [2].
To avoid changing of welding timings, the costs of experimentation or increasing the complexity as a result of several factors, it is difficult to consider all factors and their responses simultaneously.
Zhang et al [10] conducted a material flow analysis to investigate how the flow of the material influences the mechanical properties of the joint.
Fig.4 Experimental results extracted from literature [15] In order for the numerical model to be close to the experimental one, an identification of the mechanical properties of each zone is carried out based on the properties obtained from the tensile tests.

Mechanical Properties of Alumina-Mullite-Zircon Refractories C.
Keywords: Alumina; mullite; zircon; mechanical properties; thermal shock parameter (R''') Abstract.
Various sintering temperatures were used for the slip-cast refractories and mechanical properties determined as a function of zircon content.
This study aims to understand the mechanisms and relationships between microstructure and mechanical properties, which affect thermal shock behaviour of refractories.
Samples sintered at 1500 and 1650 °C showed a significant increase (by factors of 2.4 and 3.3, respectively), with increasing zircon.

Laser Shock Processing as a Method for the Improvement of Metallic Materials Surface Properties: A Discussion on the Influence of Combined Mechanical and Thermal Effects J.L.
Fax: (+34) 913363000. email: jlocana@etsii.upm.es Keywords: Laser shock processing, residual stresses, mechanical effects, thermal effects, surface properties, fatigue, wear, numerical simulation.
Abstract Laser shock processing (LSP) has been presented as an effective technology for improving surface mechanical and corrosion properties of metals, and is being developed as a practical process amenable to production engineering.
Experimental results Under the referred experimental conditions, the effects induced by the laser on the mechanical properties of the treated material have been characterized.
[9] Ocaña, J.L. et al.: "Laser Shock Processing as a Method for Surface Properties Modification of Metallic Materials".

walter@dfi.uem.br and wilson@dfi.uem.br Key words: composite, biomaterial, sinterability, physical-mechanical property.
This factor is an obstacle in implants that must support high loads [1, 2].
Current study describes the preparation and the characterization, evaluates the possible sintering temperature effect on sinterability, microstructure and physical-mechanical properties of the titanium-hydroxyapatite composites obtained by mechanical alloying (MA), followed by sintering.
In addition, sintering temperature provides a development in porosity, which affects the composites' physical and mechanical properties.
Conclusion Results and analyses carried in current research lead to conclusions related to the composites' microstructure and to the influence of sintering temperature in physical and mechanical properties

Meanwhile, controlled mechanical properties of these materials could promote their application flexibility.
Meanwhile, mechanical properties of these filaments were also characterized by tensile test experiments.
(2) (3) Mechanical Properties of PLLA Monofilaments.
Mechanical Properties of PLLA Monofilaments.
As a result, corresponding changes on mechanical properties of oriented filaments happened.

The compressive residual stress could be induced by LSP, which further significantly affects materials surface properties.
The main factors of LSP, which affect the surface properties of alloys, such as surface roughness and residual stress gradient, are studied and analyzed in present study.
Introduction Laser shock processing (LSP) is a cold-working surface treatment process designed mainly to improve surface mechanical properties and fatigue life of materials [1].
The residual stress distribution in sub-surface layers (less than 10 µm in depth) is a very important factor that affects structural properties of materials.
However, factors of apparatus' rotation for stress analysis increase the errors of this method.

In this paper, fabric properties were measured at the beginning.
Due to the sewing process affecting the shape style, which may generate greater error, no treatment on hem was done.
According to the meanings of original variables, we have defined these four main factors.
Subjective and objective Evaluation on Semi-fitting skirt Shape Style Based on Fabric Physical and Mechanical Properties.
Shape of semi-fitting skirt and its predictive model based on the properties of fabric.

Chemical mechanical polishing (CMP) has become an essential technique in advanced ULSI process.
According to the physical and chemical properties of Ta, the alkaline polishing slurry and proper process parameters for Ta CMP are prepared.
As shown in Tables 1, Taguchi method was conducted using four fixed factors and three levels.
Table 1 Effect factors and their levels in Taguchi design experiment Levels Factors A：Abrasive concentration B：Organic alkali /（ml/L） C：Oxidant / （ml/L） D：Surfactant /(ml/L) 1 15% 5 5 15 2 10% 10 10 10 3 7% 15 20 5 Results and Analysis Signal to noise ratio.
ANOVA can analyze the size of experimental error, and thus know the experimental precision; not only indicate the sequence of the influence to experimental index, but also analyze the factors which significantly affected and which are not.