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El-salakawy, Benmokrane [2] 180 700 600 3.3 35-42 1538 130 Alsayed [3] 200 360 310 2.4 36 565 42 Nakamura, Higai [4] 200 300 50 3 35 544-649 31 Shehata [5] 135 560 470 3.7 33-54 713-1800 41-137 Tottori, Wakui [6] 150-200 300-400 250-325 2.1-4.3 31-72 602-1766 36-94 Table 2 compares each methods coefficient of variation and the mean value of the test/theory ratio Vtest/Vu, where Vtest is the experimentally obtained punching strength and Vu is the predicted punching strength.
Literature References [1] Ahmed, E., El-Sayed, A., El-Salakawy, E.F., Benmokrane, B., Bend Strength of FRP Stirrups: Comparison and Evaluation of Testing Methods, ASCE Journal of Composites for Construction, 14 (1): 44-54, 2010
[3] Alsayed S., Al-Salloum Y., Almusallam T., Shear design of beams reinforced by GFRP bars, Proceedings of the 3rd international symposium on non-metallic (FRP) reinforcement for concrete structures, Japan Concrete Institute, Sapporo, Japan, 14–16 October 1997, pp.285–292

El-Shrkway et al. [4] reported that bond strength of resin cement to silica coated zirconia samples using plasma technology improved, and Si-O bonds available on the zirconia ceramic.
References [1] Z.R.El-Shrkawy, M.M.El-Hosary, O.Saleh, M.H.Mandour, Future Dental J.; 2016; 2; 41-53

The critical stress intensity factor Kfc, useful to determine whether the critical condition of unstable propagation is reached, can be evaluated with the Kato et al. model [18] developed for case hardened spur gears.
Material Condition Surface hardness (H1) Maximum hardness (H2) Core hardness (H3) Depth of maximum hardness (d2) [mm] Depth of interface hardness (deff) [mm] 16NiCr11 PVD-coated 1200 HV 1206 HV 300 HV 0.0015 0.003 Ti-6Al-4V PVD-coated 1200 HV 1206 HV 350 HV 0.0015 0.003 According to the microstructure fracture mechanics [20], the choice of the most suitable theoretical model for the threshold stress intensity factor range evaluation depends on the crack length ratio a/a0 between the half-length of the crack and the El-Haddad critical crack length [21].
Range a/a0 ≤ 3 3 ≤ a/a0 ≤ 10 a/a0 ≥ 10 Model El-Haddad Murakami-Endo LEFM Threshold ,0 th th C a K K a a ∆ = ∆ + ( ) 1/3 3 1 3.3 10 ( 120) 2 th R K H area α − −  ∆ = × +     area = crack length expressed in µm, 4 0.226 10H α − = + ×
El-Haddad, K.N.

Steel C Mn Si P S Al Nb V N Nb-V 0.06 1.2 0.29 0.02 0.007 0.035 0.062 0.053 0.0081 900ºC ε=0.4, ε=1s-1.
Figure 5 and Figure 6 show the influence of coiling temperature on the mechanical properties, i. e. hardness, tensile strength (TS), yield strength (YS) and total elongation (El).
Hardness measurements as a function of coiling temperature 300 500 700 900 500 550 600 650 700 750 Coiling temperature (ºC) YS and TS (MPa) 0 10 20 30 40 Total Elongation (%) YS TS EL Figure 6.
Even in the present simulations were the amount of austenite refinement is limited, due to the low strain accumulated in the austenite, strength levels superior to those required for X70 grade (YS > 483 MPa and TS > 565 MPa) are reached at coiling temperatures in the range 550-600ºC, with total elongations >26%, well above the minimum required (EL=22%), and YS/TS relationships below the maximum allowed of 0.85.

[7] M. la Gennusa, et al.: Sustainability Vol. 9 (2017)
AL-Oqla, S.M.
Guna et al.: Journal of Natural Fibers Vol. 18 (2021), p. 1871–1881
Pennacchio et al.: Energy Procedia Vol. 111 (2017)
Bos et al.: Journal of Materials Science Vol. 39 (2004), p. 2159–2168.

Sarmiento and Nagi[2], Erenguc et al.[3] survey the literature of integrated production and distribution models.
Hall et al.[5] analyze a variety of problems with different machine environments where a set of available times at which batches may be delivered is fixed before the schedule is determined.
Li et al.[6]research the problem relate to transportation route.
Ahmadi el al[7]and Hall el al[4] also research the similar problem under this assumption.

Then, organic layers and the Al electrode were deposited successively without exposure to the atmosphere.
Figure 1 shows the three devices (devices A, B, and C) with the following structures: Device A: ITO/2T-NATA(40nm) /NPB(10nm) /TCTA(10nm) /10wt% PER53:EPH31 (20nm) /EPH31(10nm)/Bphen(30nm)/Liq(0.5nm) /Al(200 nm); Device B:ITO/2T-NATA(40nm)/NPB(10nm)/TCTA(10nm)/10wt%PER53:EPH31(7nm)/7wt% PER53:E- PH31(7nm) /5wt%PER53:EPH31(7nm)/EPH31(10nm)/Bphen(30nm)/Liq(0.5nm)/ Al(200nm); Device C: ITO/2T-NATA(40nm)/NPB(10nm)/TCTA(10nm)/10wt%PER53:EPH31(10nm)/ 5wt%PER53:EPH31(10nm)/EPH31(10nm)/Bphen(30nm)/Liq(0.5nm) Al(200 nm); In devices A, B and C, 4,4’,4’’-tris[2-naphthyl(phenyl)amino]triphenylamine (2T-NATA) acts as hole injection layer (HIL); 1,4-bis[N-(1-naphthyl)-N’-phenylamino]-4,4’diamine (NPB) and 4,4’,4’’-tris(N-carbazolyl)-triphenylamine (TCTA) are used as the hole transporting layer (HTL), respectively.
EPH31 is served as electron transport layer (ETL) and triplet host, and Bis(1-(biphenyl)isoquinoline)iridium(III) ace-tylacetonate (PER53) is used as red emitter; 4,7-diphenyl-1,10-phenanthroline (Bphen) functions as an electron transport layer (ETL); 8-Hydroxyquinolinolato-lithium (Liq) and Al function as the electron injection layer (EIL) and cathode, respectively.
Device A, B, and C exhibit the same electroluminscence (EL) spectral shape with an identical peak wavelength.
Device performance of PhOLEDs: (a) current density and luminance plotted against voltage; (b) current efficiency–luminance–external quantum efficiency; (c) external quantum efficiency–luminance–current efficiency; and (d) normalized EL spectra of Devices A, B, and C Table 1.

A.Erba et al. have found that to largely affect piezoelectric response because of large zero-point motion of Ti atoms of ferroelectric SrTiO3 at low temperature by ab-initio theoretical simulations [7].
M. de Jong et al. have presented large database of calculated intrinsic piezoelectric constants, for use in design and development of piezoelectric materials and devices [8].
Shi and et al. have calculated the polarization and d33 to the contributions of the A-site and B-site atoms of the tetragonal structures of PbTiO3, BaTiO3 and KNbO3.
El-Kelany, M.
E.El-Kelany, M.

The peaks at 4.85 Å; 3.17 Å and 2.43 Å confirmed the presence of gibbsite [Al(OH)3].
The peaks identified the presence of gibbsite [Al(OH)3] at 2θ = 2.44; 2.03 and 2.28 Å.
El-Hemaly, E.I.
Al-Wakeel, S.A.
El-Korashy, P.W.

Meraghni et al. evaluated a new fatigue damage model in a shorten fiberglass reinforced with polyamide castings (PA6-GF30) [2].
To increase the tensile strength of PA6 and polypropylene (PP), Güllü et al. experimented with 15% and 30% fiberglass, thereby improving the tensile strength of PP by 128% and 198%, respectively, and that of PA6 by 74% [3].
Bajracharya et al. showed that combining recycled plastics with fiberglass resulted in increased compression and hardness, and the tensile strength increased in detail [4].
El-Wazerya, M.I.
El-Elamya, S.H.