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Gein et al. [17] investigated the influence of the addition of 1-3 at.-% Molybdenum on the microstructure of the alloy and its mechanical properties.
Chen et al., Li et al., and Feng et al. [7-9] provide overviews of the fatigue relevant mechanisms in HEAs, including dislocation-evolution, deformation nano-twinning and twinning induced plasticity (TWIP) [7, 9].
Weaver, Editorial: Dual-Phase Materials in the Medium and High Entropy Alloy Systems Al-Cr-Fe-Ni and Al-Co-Cr-Fe-Ni, Front.
Zhang, Enhancing bending fatigue resistance of the CoCrFeMnNi high-entropy alloy thin foils by Al addition, Mater.
El Haddad, T.H.

Fussell et al. [1] developed a 5-axis virtual machining environment for discrete simulation of sculptured surface machining which aims automatic feedrate selection along the toolpath via mechanistic modeling of cutting forces.
Bailey et al. 2] proposed a generic mechanistic cutting force model for simulating multi axis machining of sculptured surfaces.
This article extends the modeling of 3-axis ball-end milling presented by Erdim et al. [5, 6] into mechanistic modeling of 5-axis ball-end milling.
El-Wardany, P.

It has also been shown that employment availability within the waste management sector cut across the range from blue-collar jobs to professional science, engineering to low skilled labour (Duston, 1993, Nelson, et.al., 2007).
Also, Hoornweg et al. (1999) have shown that for every metric ton of unsorted municipal solid waste, 0.2 Mt are converted to landfill gases.
This is because waste varies according to type of households, their income and generally the land use in a given area (Contreau, 1992; AbuQadis et.al., 1997; Adedibu, 1985; Bunar and Ozkan, 2008).
El Cologeo de la Frontera Norte, Tijuana

Gertsik, et al.
El-Shennawy, O.
Mikhailov, et al.
Molochkov, et al.

However, it is difficult to produce fine, fully nitrided powders because during the reaction the Al powder can form large aggregates due to its melting point (660 o C) being lower than the nitridation temperature (≥800oC) [25].
In addition, AlN formation occurs first on the surface of the Al particles inhibiting the diffusion of the nitrogen to the unreacted metal.
As for the chemical vapour infiltration process, extended reaction times are therefore required to allow adequate diffusion whilst intermittent grinding steps are generally necessary to break the agglomerates and expose fresh surfaces of unreacted Al [26].
[30] Palaith D., Silberglitt R., Wu C.C.M., Kleiner R. and Libelo E.L., in Microwave Processing of Materials, Eds.

True stress-strain curve of Al 6061 Finite Element Model Reconstruction of Bone Structures In this research trabecular (cancellous) bone was analyzed at the metaphyses of four different species including rat, rabbit, chicken, and sheep with n = 1 per species.
Due to the differences in sample and trabecular bone sizes in the different species we implemented an adapted nominal resolution (isotropic voxel dimension) for each bone according to Bouxsein et al. [16].
Material Al 6061 properties were applied for the FE analysis.
El-Hage, P.K.

One such chitosan derivative, first developed by Zhong et al, 2010 [8] is maleic chitosan.
Similar findings were reported by Li et al, 2009 [26], which showed that exposure to maleic chitosan aqueous solution resulted in a 40% reduction in formazan production in BAEC cells at the highest tested concentrations.
Similar findings were reported by Zhong et al, 2010 [8], who found that maleic chitosan/PEGDA had some cell adhesive properties and suggested that further modifications would be necessary to improve cell adhesion. 3.4.2 Live dead assay As shown in Figure 6, MC3T3-E1 cells which remained attached to the surface of the scaffold after 3 days in culture appeared viable, fluorescing green, with only a small number of dead cells.
El-Amin, Bone graft substitutes, Expert Rev Med Devices. 1 (2006) 49-57

Scheme for recording images from a speckle pattern on a steel p adhered to two steel plates and recording the distribution of deformations in the adhesive layer using optical microscopy during tensile deformation (a): SP1 and SP2 are steel plates; Pa1 and Pa2 are patches made of steel plates; AL is the adhesive layer; IB is the interface between two steel plates; D is the recording place using an optical microscope; OM is the optical microscope;C1 and C2 are digital cameras; P is the applied load.
El-Sawy, Mohammed M.A.
A. et al.
Al-Mahaidi, M.

Steel C Mn Si Ni Cr Mo Cu Al S P Ce 42CrMo4 0.41 0.72 0.26 0.17 1.0 0.17 0.16 0.024 0.001 0.006 - 42CrMo4Ce 0.404 0.77 0.22 0.189 1.03 0.165 0.16 0.015 0.0033 0.007 0.067 After removing from the plasma furnace, the steel samples were vertically cut along a center cross section and mounted.
Guo et.al. [15], revealing that a wide variation in concentration of dissolved Ce did not produce any effects on grain sizes in solidification structure of steels.
El-Kaddah, T.
Nagaumi, Prediction of porosity contents and examination of porosity formation in Al-4.4%Mg DC slab, Sci.

According to Shrestha et al [50] major accidents on construction sites are the consequences of a poor visualization.
According to FISCA [56] , Haslam et al. [36], and Bashir et al. [37] a poorly organized workplace, as shown in figure 4, is classified among the main causes of fatalities and injuries on the construction site.
Moreover, Howell et al. [57] considers condensed materials/equipment that are badly placed as one of the causes of accidents.
However, Nahmens and Ikuma (2009) argued that there is no empirical evidence to support On the other hand, Ghosh et al [4], Bashir et al [37], Hallowell [64], Ng et al [65], and Zhu and Lv [1] consider the lean concept as an effective solution leading to better working conditions for employees and reducing the occupational accidents.
El-Gohary.