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Optional secondary processing often follows to obtain special properties or enhanced precision [1- 6].
The most important factor is the porosity.
Porosity changes the properties of thermal conductivity and harden-ability of the material and affects the welding process and affects its character because of the oxides and impurities within the structure.
Other important point is the design factors.
Sarıtaş, AU Isparta: J. of Mechanical Engineering, vol. 7, (1993), p.1 [4] R.M.

The linear speed v determines the amount of time required to cut the stone for a given cutting finish, thus directly affecting productivity and quality.
While v, w can be changed continuously without affecting much the manufacturing procedure, modifying h significantly affects the way the product is fabricated.
This hypothesis assumes that the mechanical properties remain unchanged during the experiment, which is not the case for a natural stone.
The restrictions discussed above for f(v) curves, regarding fluctuations in material properties, apply also for f(w) and f(h) curves.
Rosa: Evaluation of the relationship between diamond tool wear performance and the mechanical properties of the individual metallic binders, Materials Science Forum, Vol. 636-637 (2010) pp.1467-1474

Dry weather and excess salt content are unfavorable factors to inhibit the growth of plants[1] .
Table 3 Factors and level list of the U12（12×43×34）homogeneous design Text No.
Comparing with these variables, local arbor had less influence with small correlation coefficient(-0.027), which indicated that although local arbor did affect the salt content with highest direct path coefficient, the interaction among various factors played a more important role.
The effect on soil salinity would be changed with the soil texture, physical structure of PHCB and other factors.
Vol.48, No.2 (2005), P.171-178 [2] Bowles, J.E: Engineering Properties of Soils and their Measurements.

The XFEM properties for the modelling approach are shown in Table 1.
The XFEM properties for predicting the tensile response of hybrid composites.
This could be due to several factors.
Sarkar, Characterization of Mechanical Properties of Hybrid Bamboo/GFRP and Jute/GFRP Composites, Materials Today: Proceedings. 2 (2015) 1398–1405. https://doi.org/10.1016/j.matpr.2015.07.059.978 [5] P.S.
Ojha, R. inala, Evaluation of mechanical and tribological properties of bamboo–glass hybrid fiber reinforced polymer composite, Journal of Industrial Textiles. 46 (2016) 3–18. https://doi.org/10.1177/1528083715569376

Biomass gasification has potential in power generation, because produces versatile fuel, which can totally or partially replace the conventional fossil fuels. [6]. 3.1.1 Process variables The system operating conditions determines the physicochemical properties of the gas mixture obtained, therefore, it is important verifying each of the variables affecting the process: temperature, pressure, gasification agent and raw materials. 3.1.2 Gasification equipment The gasification equipment developed was a countercurrent fixed bed.
Additionally, it was quantified H2, CO, O2, N2, and CO2 by thermal conductivity detector (TDC) and CH4, C2H6, C2H4 by a flame ionization detector (FID). 4.2 Statistical Analysis The experiment was performed using a 2k factorial design with two levels and 4 factors.
To evaluate the effect of particle size, it was used treatment III, where factors like particle diameter (mesh 100), bed height (No.2) and gasification agent (air) remain constant.
"Determination of some physical and mechanical properties of Maraco seed (Theobroma bicolor HBK) and obtaining Bacalate.
Thesis (Mechanical Engineer).National University of Colombia, Faculty of Engineering, Department of Mechanical Engineering and Mechatronics

Introduction With excellent physical properties of high specific stiffness, specific strength, elastic modulus and low thermal expansion coefficient, SiCp/Al composites are widely used in the aerospace, military, precision instrument, electronics and automobile industry.
Because Al matrix and SiC reinforcement in SiCp/Al composites have different properties，traditional grinding technology is difficult to satisfy the precision and ultra-precision of SiCp/Al composites machining requirements.
After the processing, testing and observing the surface with the aid of TR300 surface roughness measuring instrument and S-3400 N Ⅱ scanning electron microscope respectively. 2.2 Grinding process parameters setting By analyzing the main mechanical properties of SiCp/Al composites and similar materials grinding process parameters, orthogonal experiment was carried out, when the spindle speed is 1500 r/min, the grinding depth is 0.1 μm, specimen movement speed is 2 m/min, and voltage is 15 v, the machined surface roughness can obtain Ra0.030μm.
By SiC particle removal way, the Al substrate materials of coating and other random factors affecting, the formation of SiCp/Al composites on the surface is more complicated.
Journal of Mechanical Engineering, 2000, 36(05):89-92 [3] GuanJiaLiang, GuoDongMing, YuanZheJun:ELID mirror surface grinding technology-review [J].

The project is due to manholes surrounding backfill not dense , there is no hierarchical compaction required , fillers poor quality , poor moisture control and other factors affecting the compaction effect , caused by too much work for the settlement . 2 sewer project construction quality control points 2.1 Quality control pipe .
Quality control during excavation should take the following points: 2.3.1 Slope Landslide Control First of all, the former location of the pipeline trench excavation by construction patterns in the field put on the line , the excavation methods are manual excavation ( excavation with hand tools ) , mechanical excavation ( excavators excavation ) , should also be adopted in case of lots of rock blasting excavation .
According to soil type , soil mechanical properties to help determine the appropriate slot slope .
Secondly , try to make the mound excavation trench excavation on one side and the other side can be placed transported to drain to be installed , must not allow the drainage ditch was excavated placed side out soil buried. 2.3.2 Control section of the trench slotted wide cross-section from the bottom , deepened , bottom , and between the layers slope gradient layer width and other factors to determine the remaining units .
Tube should be adopted under the crane , the crane should be opened along the trench line and away from the edge of the ditch should be greater than 1m, in order to avoid the trench wall collapsed, affecting the stability of the trench slope.

Introduction Surface tension is the governing factor in all processes of cutting, welding, soldering, and joining.
Due to the fact that material is affected by the thermal-mechanical process, through an interaction with the laser beam, knowledge on stress and deformation analysis for the application and the process of monitoring is ideal.
The equation of mechanical equilibrium is defined as (2)
A decrease of Emat and ρ with depth h is expressed by the attenuation factor cos δ by Equations (11) and (12)
A technological constant KcutL = f (Wlas, vp, p, d) affects the surface roughness, i.e. the surface deformation and the achievable depth of cut and analogously affects the surface tension σsurh.

Influence its forming factors are also many (such as mould shape, materials properties, blank of shapes and sizes, the friction and lubrication between mould and sheet, etc.).
Long debugging cycle and the high cost directly affect the production efficiency of front fender [1,2].
Research on an Evaluating Model of Stamping Process Plans for Automobiles′ Panels [J].Mechanical Science and Technology, 2006, 25(2): 181-183.
Beijing: Mechanical Industry Press, 2003.
China Mechanical Engineering, 2003, 14(1): 20-22.

This study considers the computational structural mechanics, collision theory multidisciplinary factors, according to the work characteristics of three typical stages of docking process, dynamics analysis using ADAMS software.
Flow chart of ADAMS analysis 2) Due to the complex mechanical system, where the system is decomposed into several subsystems.
The physical properties between the reflected part correct, accurate definition of motion between components, is the key to set up the simulation model.
The process of modeling, the extracted effective element, element of overall system performance to omit some does not affect.
The connected components in a follow-up work as a whole body to deal with, so does not affect the results.