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Reaming effect is affected by mechanical properties of coal seam, water jet’s pressure, nozzle’s diameter and so on.
The mechanical property of the first two section weak in different degree, but it is difficult to quantify it specifically.
Under the condition of numerical calculation, drilling spacing have less effect on the stress concentration factor, it can be ignored.
Fig.2 Relationship curve between the hole’s diameter and vertical stress concentration factor Stress distribution curve of coal between two adjacent holes is shown in fig.3, coal stress increases with diameter, but when the hole spacing is more than 5 meters, coal stress is no longer affected by reaming diameter, the pressure relief range of hole enlarges with the diameter.
According to the mechanical property of coal, gas deposit and occurrence depth in uncovering coal area of north wing concentrated belt dip in Daxing Mine, conclude that when the η coal dust is not less than 2.5% and exclude coal dust uniformly, the reaming measure is reliability.

During this process, with the consecutive and simultaneous strokes of the die on the workpiece, the variations of the dimension and the improvement of mechanical properties of the workpiece take place.
The rotary swaging process is another mechanism in order to enhance the quality of the mechanical properties of the tube.
The rotary swaging process parameters can have an influence on the quality of the geometric and mechanical properties.
Analytical and Numerical Wear Rate Solution In mechanical friction contact, the phenomenon of wear is one of the factors that always occurs and determines the connection temperature of the interface and changes in the geometry of both contact surfaces.
The properties and material assumptions have been mentioned in previous articles of auteurs.

During the process of SSM, the rheological properties of the slurry directly affect events during filling process and subsequently influence the microstructure of castings.
Therefore, how to sufficiently stir the slurry to produce homogeneously distributed small round particles is crucial to improve the mechanical properties of castings.
The influence of both two stirrers on the microstructure and mechanical properties of castings was studied.
Mechanical properties.
Both these factors have a detrimental effect on the ductility.

The selection of stainless steels may be based on corrosion resistance, fabrication characteristics, availability, mechanical properties in specific temperature ranges and product cost.
However, corrosion resistance and mechanical properties are usually the most important factors in selecting a grade for a given application.
Therefore, the technology of bimetallic castings is gaining in importance, particularly when the criterion for highly usable properties concerns only the working surface layer and the rest of the casting is only the base part which is not exposed to the direct influence of factors causing abrasive or corrosion wear.
[2] ASM Metals Handbook, Properties and Selection - Irons, Steels and High-Performance Alloys, Volume 1 of the 10th Edition Metals Handbook. (1993), ASM International Handbook
Lu, Effect of volume ratio of liquid to solid on the interfacial microstructure and mechanical properties of high chromium cast iron and medium carbon steel bimetal, Journal of Alloys and Compounds, 509 (2011) 6700–6704

Apart from that, results of tensile test indicated the weldment has affected the strength and ductility of the two different fillers selected.
Introduction The series 6000 aluminium alloys are widely used in structural applications due to their heat treatable and specific mechanical properties, corrosion resistance and formability from simple to complex profiles by extrusion [1].
The distribution of porosity in weld nugget depends on many factors, such as chemical compositions of the material and welding condition.
The magnesium content in ER5356 filler metal increases the mechanical properties of weldments through solid solution strengthening and improves strain hardening potential [19, 20].
[3] W.H.Cubberly (ed.): Properties and Selection, Nonferrous Alloy and Pure Metals, in ASM Metal handbook, 9th Edition, Volume 2, Materials Park, Ohio, (1979), p.193

Dyes possess carcinogenic, toxic, and mutagenic properties, posing a significant threat to the environment and aquatic organisms.
Moreover, Response Surface Methodology (RSM) was employed to optimize the parameters affecting the dye decolorization, to determine the most suitable conditions for complete dye adsorption.
Table 2 Experimental factors and experimental responses.
Additional factors like dye concentration, pH, and chemicals in the solution can affect particle-dye interactions and adsorption behavior.
Sahoo, biopolymers Fabrication of thermoplastic polyurethane and polyaniline conductive blend with improved mechanical , thermal and excellent dielectric properties : exploring the effect of ultralow-level loading of SWCNT and temperature, J.

Factors influencing the impact energy include grain size, inclusion, segregation, etc.
The purpose of this study was to determine the most sensitive factor affecting grain growth between heating temperature, holding time and precipitates.
Abnormal grain growth can severely deteriorate mechanical property, especially for low temperature impact toughness.
Lee, Enhancing mechanical properties of a low-carbon microalloyed cast steel by controlled heat treatment, Mater.
Burke, Some factors affecting the rate of grain growth in metals, Trans.

Results and Discussion Kinetic and Thermodynamics properties.
For instance, Mn, Cr and Fe atoms have similar DW factors while that of the other ones are much smaller.
Moreover, the tracer diffusivities can be exclusively predicted by DW factors which represent the compactness of the local atomic environment.
On temperature dependence of cooperative relaxation properties in glass-forming liquids.
Thermodynamic properties of Al, Ni, NiAl, and Ni3Al from first-principles calculations.

Load duration and temperature are the most important factors affecting the strength of laminated glass.
It is concluded that the laminated glass beams have very good mechanical properties and structural adequate structural safety and the beam can be used in load bearing constructions replacing metallic beams.
Giuseppe Campione et al. [6] studied the level of connection between the glass foil and the mechanical properties of laminates glass composites.
The static properties of different polymers are different.
Sunith Babu L [11] examined the impact properties of the laminated composites.

This paper investigates the physical and mechanical properties ofconcretes made by blended cement containing Algerian natural pozzolan of volcanic origin, and Portland cement. in order to better determine the pozzolanic effect of the pozzolan addition in the concrete, the analysis of the experimental results of the effect of the partial replacement of the cement by the naturalpozzolana showed that it contributes positively to the improvement of its mechanical characteristics, its durability with respect to the permeability to the chlorine ions, the ultrasonic pulse velocity as well as the sulphate resistance.
Introduction The durability of concrete structures is affected by many environmental factors, the sulphate corrosion being one of the most frequent and detrimental processes.Through the capillary pores of concrete due to the concentration gradient/1, 2/and react with unhydrated components of the hardened cement paste.
Mixture proportions and properties of concrete Concrete W/ C (ratio) Cement, (kg/m3) Pozzolan (kg/m3) Water (kg/m3) Gravel 3/8 (kg/m3) Gravel 8/16 (kg/m3) SPa (%) Sag (cm) Density (kg/m3) CC 0,5 425 0 212,5 137 837 0 8 2430 HPC 0.3 403.75 21.25 107.66 137 837 2 21 2596 Testmethods Compressive strength: This test was carried out in accordance with ASTM C39.
With aging, the pozzolanic action further evidence of densification and low porosity of the concrete due to the natural admixture by the formation of CSH with binding properties similar to those formed in mineral-based cements.