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Lee et al. [20].
When the thickness of LCBP in the device increases, there is a tendency that the peak position of EL spectrum is blue shift and that the intensity of EL spectrum is enhanced.
Thus, the EL peak is gradually shifted to the wavelength of 390 nm with the thick LCBP layer.
EL spectra in ITO/ NPB(40 nm)/ CBP(x nm)/ DPVBi(15 nm)/ CBP(10-x nm)/ Alq3(20 nm)/ LiF(0.5 nm)/ Al(100 nm) devices with double-CBP layers (left-CBP 0, 2, 4, 6, 8 and 10 nm; right-CBP 10, 8, 6, 4, 2 and 0 nm).
The inset shows EL spectra in ITO/ NPB(40 nm)/ CBP(x nm)/ DPVBi(15 nm)/ CBP(10-x nm)/ Alq3(20 nm)/ LiF(0.5 nm)/ Al(100 nm) devices with double-CBP layers (left-CBP 0 and 2 nm; right-CBP 10 and 8 nm).

Ethnobotany Study of Five Medicinal Plants Used in the Beni Ammart (North of Morocco) Kamal El Yousfi1,a*, Omar Benamari1,b, Amine Salhi1,c and Yahya El Hammoudani2,d 1Unit in Applied Chemistry, Faculty of Sciences and Technique, Abdelmalek Essaadi University, Al Hoceima, 32003, Morocco 2Department of Energy and Environmental Civil Engineering, National School of Applied Sciences of Al-Hoceima / Engineering Sciences and Applications Laboratory / Abdelmalek Es-saâdi University, Tetouan, Morocco akamalelyousfi1985@gmail.com, bobenamari@gmail.com, camine65ess@gmail.com, delhammoudani5@gmail.com Keywords: Ethnobotanical stuty, Daphne gnidium L, Origanum elongatum, Cistus salvifolius, Cistus laurifolius and Thymus willdenowii.
This result is consistent with those obtained by Benkhnigue and al (2011) and Hafian and al (2014) [10,12].
El Rhaffari, A.
El hafian,  N.
El Azzouzi, L.

[2] S.Ochiai et al.: Composites Science and Technology Vol. 61 (2001), p. 2117
Neiman et al.: Russian Journal of Inorganic Chemistry Vol. 25 (8) (1980), p 2340
El-Maghraby, F.
El-Maghraby, M.A.
El-Ezz, M.

Finally, the EL device was fabricated using Tz-2T-Hex as an active layer.
In order to examine the electroluminescence (EL) properties and the current–voltage–luminance characteristics of the synthesized oligomer, devices with the configuration of ITO/PEDOT:PSS (20nm)/ Tz-2T-Hex (100 nm)/LiF (1nm)/Al (500 nm) were fabricated.
The EL spectrum of the oligomer is shown in Figure 3, together with the UV and PL spectra in film state.
UV-Vis (solid line), PL (dashed line), and EL (dotted line, solid line for smoothing) spectra of oligomer film.
The maximum EL efficiency was found to be up to 800mA/cm2 and the device showed turn-on voltages (VT) at around 6.0 V.

The electrochemical activity of Al anode is mainly controlled by the distribution of active elements and phase segregation in Al matrix [6].
Li, et al: Nonferrous Metals Vol.54-1(2002), p.19 [2] Q.F.
El Shayeb, F.M.
Abd El Wahab, S.
Zein El Abedin: Corrosion Science Vol.43(2001), p.643 [4] I.

El-Hofy1a, A.
El-Taabl2, A.
Elkhatib1 1Physics Department, Faculty of Science, Menoufia University, Shebin El Koom, Egypt 2Chemistry Department, Faculty of Science, Menoufia University, Shebin El Koom, Egypt aelhofy2000@yahoo.com Keywords: Grain Boundary Parameters, Gd2O3, J-E Characteristics, Microstructure, Pr6O11, ZnO Abstract To the best of our knowledge the difference in the magnetic properties of ions like Gd (7.94 μB) and Pr (3.58 μB) on the electrical properties of ZnO-varistor have not been studied.
The first ZnO varistor system was developed by Matsuoka et al. in 1969 [1, 4].
The first gapless-type of ZnO surge arrester was reported by Kobayashi et al. [17] and Sakshaug et al. [18] in 1977.

Finally, a LiF(1.0nm) buffer layer and Al cathode were vapor-deposited at a background pressure of 10 -6 Torr onto organic films.
Figure 2 shows the normalized EL spectra of devices having different DPVBi thickness at 13V.
The brightness reached 8496 cd/m2 at 16V (EL efficiency is 0.24lm/W) and CIE coordinates were (0.32, 0.28).
As the thickness of DPVBi increases, the DPVBi blue EL spectra increases.
Wavelength (nm) Fig.2.Normalized EL spectra of the devices having different DPVBi thickness at 13V Fig.3.

External Bonding on Mechanical Behavior RIYAD Yahya1,a, HACHIMI Taoufik2,b*, EL ASSAD Hatim2,c, BAGAR Hamza2,d, AIT HMAZI Fouad2,e, EL KHOUDRI Mouad1,f, MRANI Ibrahim2,g 1Laboratory of Engineering Sciences for Energy (LabSIPE), University Chouaib Doukkali, El Jadida, Morocco 2Laboratory of Nuclear, Atomic, Molecular, Mechanical and Energetic Physics, University Chouaib Doukkali, El Jadida, Morocco aRiyad.y@ucd.ac.ma, b*Hachtaoufik@gmail.com, cAithmazi.f@ucd.ac.ma, dElassad.h@ucd.ac.ma, eBagar.h@ucd.ac.ma, fElkhoudri.m@ucd.ac.ma, gMrani.i@ucd.ac.ma Keywords: Concrete, Reinforcement, Concrete behavior, Beam, Abaqus, CFRP.
EL Ghoulbzouri, M.A.
El khatib.
Riyad, I.Mrani, M.A.Parron, N.Labjar, A.El Haouzi,M.Ait el fqih, C.Guemimi.
El Assad, I.

The EL spectrum reveals a broad emission band covering the range 350 - 700 nm.
Meanwhile, electrons are injected from the LiF the buffer Al cathode into the conduction band (C.B).
Figure (7) shows the EL measurements.
Table 2: EL coordinates for hybrid devices.
Chen et al., Crystal field, phonon coupling and emission shift of Mn2+ in ZnS: Mn nanoparticles.

El Moumen3,c and A.
El Achaby, Z.
El Achaby, Y.
El Moumen, A.
El Moumen, A.