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Kim(2000) modeled the sharing knowledge of an enterprise and studied the integration solving method of E-commerce[7], Martin, William J. (2001) studied the knowledge role content in E-commerce[8], Smirnov, Alexander el al.(2003)studied the knowledge source network configuring method in the knowledge logistics[9].
F. el al.(2005)studied the inventory management based on knowledge in the production logistics[10].

Thomas et. al., in 2008, may also explained on this reduction behaviour where it stated that the thermoset resin network was flexibilized by a very small amount of rubber that incorporated into the matrix.
According to El-Shekeil et. al., strain of the composite also had a huge contribution in the impact strength.
[14]El-shekeil: Materials and Design Vol 40 (2012), p. 299–303

On contrary, Cote et al. [1] used a long narrow tube with 8 mm of diameter, while Li and Yang [4] used a 16 mm tube which translated into smaller specific volume for reaction.
El-Kaderi, H.
El-Kaderi, J.
Yaghi et al.

Meanwhile, other dopants such as Li, Na, K, Ti, Al, Ta and Si have been report can improve the dielectric properties of NiO in the range (103 – 105) [3-4].
Wu et al also reported that the dielectric constant is correlated with grain size and thickness of grain boundary [1].
El.
El.

Similar trend was obtained by Ismael et al. [6] where the amount of Pb(II) adsorbed per unit mass of clinoptilolite adsorbents increase as the adsorbent dosage increase and approaches equilibrium at dosage of 2.0 g.
By referring to El-Hendawy [7], the pH of the metal solution is an important controlling parameter in the adsorption process.
Similar trends were obtained by Ismael et al. [6] and Ouki and Kavannagh [10] where the adsorption uptake of metal ions are inversely proportional with the initial concentration of metal solution.
El-Hendawy, The role of surface chemistry and solution pH on the removal of Pb2+ and Cd2+ ions via effective adsorbents from low-cost biomass, J.

In two contributions (Bernardin et al., Divinski et al.) these aspects are treated and experimental results, obtained in the last five-six years summarized.
This can be caused either by non-relaxed structures of the boundaries and/or by contamination effects (Bernardini et al. and Boktstein et al.) ..
This can be the case for diffusion in amorphous materials or in epitaxial, highly ideal thin films or multilayers where diffusion along short circuits can be ignored and "only" principal difficulties, related to nanoscale effects, raise (see chapters by Beke et al., Thomas et al. and Bobeth et al.).
Thus feedback effects of stresses can become important, and cannot be ignored anymore (Beke et el., Bernardini et al., Bokstein et al. and Thomas et al.).
X-ray mirrors, GMR systems etc.) the stability and the sharpness of the interfaces is a basic requirements (see chapters by Thomas et al. and by Bobeth et al.).

Bae et al. [5] also tested the durability of seals.
H., Muhammad P., el al. (2020).
[4] Iyengar V., Alexandris A., el al. (2004) Wear Testing of Seals in Magneto-Rheological Fluids.
[15] Gahr K., et al. (1987) Sliding wear.
[16] Gahr K., et al. (1998) Wear by hard particles.

Al-NL2 is shorter than Al-NL1 and Al-NL3.
The changes of Al-NL1 and Al-NL2 are bigger than Al-NL3.
In complex E, Al-N bonds are slightly shortened and Al-O bonds are lengthened.
However, Al-NL2 are lengthened and Al-OL2 are shortened.
[2] E.L.

Microhardness evolution Microhardness evolution Weld properties Global and local mechanical characterisation of the weld The results of the transverse tensile tests performed on the naturally aged 2139-T8 weld and on the T8 post welding aged weld are presented in the Fig. 6. 100 110 120 130 140 150 160 01 02 03 0 lower side mid-thickness upper side 435 482 15 5 7 72 370 302 72 398 262 72 0 100 200 300 400 500 600 E (GPa) YS (MPa) UTS (MPa) El (%) 2139 - T8 parent metal T8 2139 - T3+T8 Post Weld treatment 2139 - T8 as welded E: elastic modulus YS: Yield Stress UTS: Ultimate Tensile Stress El: fracture Elongation property Fig. 5b: T8 as welded 100 110 120 130 140 150 01 02 03 0 lower side mid-t hickness upper side Fig. 5a: T8 PWA Fig. 6: results of the tensile tests performed on T8 as welded and T8 PWHT 2139 welds The tensile strengths of the naturally aged 2139-T8 and the T8 post welding aged weld
The intergranular corrosion test confirms also the beneficial effect of the artificial aging with some zones which become insensitive to corrosion - Fig. 13. 100 110 120 130 140 150 160 170 180 0 5 10 15 20 25 30 35 40 45 Distance (mm) HV0.2 DAL 314 E/4 DAL 314 E/2 DAL 314 3E/4 7 398 262 72 9 403 266 70 0 50 100 150 200 250 300 350 400 450 E (GPa) YS (MPa) UTS (MPa) El (%) 2139 - T8 as welded 2139 - T8 FSW + aging Fig. 12: effect of artificial aging on microhardness evolution (left) and tensile properties (right) Rough surface Machined surface Base metal HAZ WN Base metal HAZ WN Advancing 151 - P with I 36 - I 129 - P with I 76 - I T8 as welded Retreating 237 - P with I 127 - I 32 - P with I 185 - P with I 73 - I 24 - P with I Advancing 78 - P with I 50 - P with I 80 - P with I 37 - I T8 as welded after artificial aging Retreating 96 - P with I 15 - I 42 - P with I 94 - P with I 27 - I - P: pitting
Acknowledgements The authors would like to thank ALCAN for the material provision, DLR and especially contribution from AL Lafly, G Foucher and S Néri for the welding development, ALCAN for the material provision and also DPAC for financial support.
References [1] Lafly A-L, Alléhaux D., Marie F., Dalle Done C., Döker H: "Impact of Friction Stir Welding techniques on microstrutural changes and mechanical properties", IIW, Prague, July 2005 [2] Marie F, Alléhaux D., Esmiller B : "development of the bobbin tool technique on various Al-alloys", 5th Symposium on FSW, Metz, France, 14-16 Sept 2005 [3] Dalle Donne C., Raimbeaux G. : " residual stress effects on Fatigue Crack Propagation in Friction Stir Welds ", ICF10, Hawaï, USA, 3-7 December 2001.

The bottom and top metal contacts were formed by evaporating Al by using suitable metal masks.
Magda, El-Shahawy, Polymethyl methacrylate mixtures with some organic laser dyes: high dielectric response, Polym.
Abd-el-Messieh, M.G.
El Hdiy, R.
Vexler, Impact of the band band tunneling in silicon on electrical characteristics of Al/SiO2/p+-Si structures with the sub-3 nm oxide under positive bias, Solid-State Elect. 47 (2003) 617-620