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The factors that contribute to a good design are difficult to be defined and even harder to control, because of the many variables involved such as experience, education, creativity, analytical approach competence, etc.
Defining the product is one of the most important factors to be taken into consideration.
One of the key factors necessary for a robust design process is well structured product definition [3].
The simulation tool estimates the quality of mechanical proprieties and appearance of the resulting part.
Also the defect can be moved in an area where it does not affect the aesthetics of the part (Fig. 17 b).

It has been reported that the tension-compression asymmetry highly affects the results of deep drawing operations in terms of thickness reduction, earing profile and drawing force [2].
During high-speed forming operations, strain rate highly affects the forming properties of sheet metals [6], both in terms of material hardening and the related onset of strain localization [7].
The two procedures, cooled-down and slowed-down, are employed to verify if strain rate and thermal softening factors assessed for the RD are also valid for the tensile data obtained at different orientations, namely if there is any dependency between strain rate, temperature and material anisotropy.
Crystal Plasticity Based Modelling of the Strain Rate Dependent Mechanical Behaviour of Ti6Al4V.
Overview of Identification Methods of Mechanical Parameters Based on Full-field Measurements.

Enrichment factors (EF) indicated that the order of pollution level was as follows: Cd＞Cu＞Zn＞Ni＞Cr＞Pb.
TOC is an important factor when analyzing the source and distribution of metals [17], so we also calculated the correlation factors between TOC and metals (Table 4).
(2) Enrichment factors were calculated to assess the sediment quality.
Blaha, Change of magnetic properties due to fluctuations of hydrocarbon contaminated groundwater in unconsolidated sediments, Environ.Pollut. 158(2010) 1756-1762
Cabrera, Horizontal and vertical variability of soil properties in a trace element contaminated area, Int.J.Appl.Earth.Obs,10 (2008) 11–25

Improvement of mechanical, thermal and other properties has to be achieved, where they are dominantly determined by its microstructure [4].
It has excellent castability, sound room temperature (RT) mechanical properties and low cost [5].
It is well accepted that a fine grain size generally results in an increase in mechanical properties, such as yield strength, toughness and ductility, for most metals and alloys [6].
Furthermore, since magnesium has a large Taylor factor due to the lack of slip systems [7], grain refinement is believed to be a good method for improving strength [8].
In this study, it was also found that the grain refinement on AZ91 magnesium alloy was drastically affected by the use of 0.4 wt% strontium.

Further, in some cases, they also determine the crack properties such as its width, shape, orientation and depth [2].
These factors cause the natural crack to be almost impossible to reproduce identically.
The crack width development is a crucial factor in studies dealing with the crack-related topics.
Ravitheja, Macro mechanical properties of self healing concrete with crystalline admixture under different environments, Ain Shams Eng J. 10(1) (2019) 23–32
Li, Factors affecting crack repairing capacity of bacteria-based self-healing concrete, Constr Build Mater. 87 (2015) 1–7

Welding is often accompanied by a larger welding residual stress, which directly affects the safety and service life of the hull structure.
Meanwhile, it also assumes that material mechanical properties and stress-strain relationship are linear change in the tiny increments of time.
Dynamic response analysis Welding is often accompanied by a larger welding residual stress, and it will affect the hull security and service life [2].
Loss factor of metal material is relatively low(the loss factor of iron and steel is often between 0.0001 and0.0006) [9], and damping ratio of general steel is also low (0.01-0.03) [10].
Vol. 19(2004), p. 30 [9] Qingpeng Sun, Qijun Zhang and Huizhu Yao: Mechanical Industry Press. (1993) [10] Jingxiang Zhou: Harbin Institute of Technology Press. (2004).

Granules exhibited relatively poor flow properties due to their small sizes and cohesive surface properties.
Thus, by adjusting the spray drying conditions we can control the granule properties.
The slurry composition and the rate of droplet evaporation are major factors that affect to granule shape and morphology.
Carr, Evaluating flow properties of solids.
Mojtaba, Whey powder: process technology and physical properties: A review, Middle-East J.

Mohammadali et al. have compared the absorption properties of acoustic panels made of wheat straw with those made of different proportions of Aspen particles [5].
Yu et al. have tested the sound absorption capacity of some wooden building materials and analyzed the main factors that affect the sound absorption of wooden building materials [6].
Zhong has studied the structure, material characteristics, sound absorption properties and application of decorative perforated wooden panels.
As to the importance of technical requirements, their sequence is: H1> H3> H2> H5> H4> H6> H8> H7> H9, indicating sound-absorbing effects and price are the most critical factors, followed by environmental and decorative performances, while size and installing performance are comparatively inferior.
Mechanical Engineering and Automation, 2009,(1): p. 57-60

Since meat putrefaction is a complex process that is influenced by many factors, it is necessary to have a comprehensive investigation of the various indicators to determine the freshness of meat.
Arguably, the methods above have only consider single factor (elasticity or odor etc.) for the detection the freshness of meat.
However, because meat rotten is a complex process that is influenced by many factors, therefore, we should integrate various indicators to determine the freshness of meat.
Based on research of different types of MOS gas sensor and properties of volatile gas in the process of storage chicken, the MOS gas sensor of TGS series were selected: TGS2600, TGS2602, TGS2610, TGS2611, TGS2620 and TGS2442 models.
Adequate selection of sensor and proper combination of array, will directly affect the performance of the electronic nose system.

As can be seen from these results of optimization of a deep drawing process, many important factors must be taken into account.
Many process parameters may affect the material flow in the rectangular cup drawing, such as material properties and the geometry of the sheet blank, punch radius and die corner radius etc.
Their properties and chemical composition are given in table I and II, respectively.
Factor c 2 3 6.
Park, Analytical derivation of earing in circular cup drawing based on simple tension properties.