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Input El-Centro wave, Taft wave and the simulation wave (see Fig.2) of Hefei respectively, without changing its spectrum characteristics, only the peak acceleration of the seismic wave will be adjusted to 2.0m/s. 1.
Fig.9, 10 and 11 show the changing relations between the upper turret displacement vibration reduction coefficient and TMD damping ratio under the El-Centro wave, Taft wave and the simulation wave of Hefei, with TMD frequency ratio changing.
Fig.15, 16 and 17show the displacement response time histories of the upper turret which under the EL-Centro wave, Taft wave and simulation wave and when, respectively.
Under EL-Centro wave, the TMD optimal parameters are: frequency ratio 1.01, damping ratio 0.01; the fluid viscous dampers optimal damping parameters is: C0=2.5X107Ns/m; the displacement response reduction factors of the upper turret is 39.6%.
[2]Zhang Zhiqiang,Li Aiqun,et al:Earthquake Resistant Engineering and Retrofitting, 2007,29(5),12-16

The Si/Al ratio of synthetic pure zeolite X was obtained by XRF analysis and shows a low Si/Al ratio with 1.17, further confirming the formation of zeolite X.
Shen and A.L.
El-Naggar, A.M.
El-Kamash, M.I.
El-Dessouly and A.K.

Many research studies have been carried out on machining of SiCP/Al composites.
El-Gallab [5] proposed that, compared with coated cutting tools, PCD tools performed better when cutting SiCP/Al composites.
Ramanujam et al: J.
Huang et al: Int J Adv Manuf Technol, Vol.62(2012), p.487 [5] M.
El-Gallab and M.

The nonlinear time-history analysis of both structures under El Centro 1940 seismic ground motion was used based on finite element method through SAP2000.
All beams are assumed as double IPE 240 standard sections and finally the base isolator (Figures 1-B) is assumed from natural rubber where the formula used is based on Fujita et al. [11].
Regarding to the UBC formulas these results proved that the frame is stiff enough to resist against El Centro ground motion.
As mentioned, Figure 2 displays the time-acceleration response of each floor for the first 10 second of El- Centro 1940.
The figure shows the maximum acceleration is obtained at the roof level with -1.3 m/sec2 at 2.3 sec which is the same value with the maximum ground acceleration of El Centro [12].

The reader is kindly referred to the proceedings of the recent Workshop on "Towards the First Silicon Laser" by Pavesi et al. [1] and references therein to get a satisfactory review of the topic.
Electroluminescence (EL) from RE-doped MOSLEDs EL spectra were measured on a MOS structure with a circular ITO electrode (diameter: 500 µm) at a constant current supplied by a Keithley 2410 sourcemeter.
More details of the EL measurements are described in Ref.[4].
Fig. 1: Overview of EL spectra in the visible range of different RE-elements embedded in a MOSLED.
In Fig. 1 an overview of the measured EL spectra in the visible wavelength range (except for Er) is shown.

Influence of Fe and Al Dopants on the Optical Properties of Zinc Oxide Thin Films Obtained by Spray Pyrolysis ABDELMALEK Nadjate1 and FARH Hichem2,3* 1 LMSSEF, Larbi ben M'Hidi University, 04000-Oum El Bouaghi, Algeria 2 Department of Material Sciences, University of Tebessa, Tebessa, Algeria 3Active Devices and Materials Laboratory, Oum el Bouaghi University, Algeria Keywords: ZnO:Fe, ZnO:Al, ZnO, UV-Visible, transmittance, optical band gap and urbach energy.
Ahn et al. [13] fabricated the Zn0.97Fe0.003O compounds using the solid state reaction method.
The dopand source concentration (Al and Fe) were 0%, 2%, 3% and 4%.
Determined the optic gap energy for ZnO: Al (2%) thin film.
Determined the Urbach energy for ZnO:Al.

One of the elasticity coefficients of a composite, tensile module EL is given by the following forecast formula [3]: EL=EfVf+(1-Vf)Em
In order to simplify the problem, let x represent Vf, and y represent EL.
Vf[%] EL[Mpa] NO.
And the final equation is y * =3.01+0.664x,i.e., EL=3.01+0.664Vf
Horton,et al: Machinery's Handbook, 27th Edition(Industrial Press Inc., U.S.A. 2004)

El Azhary, N.
El bouardi, H.
El bouardi, D.
El bouardi, F.
Niang et al., Hygrothermal performance of various Typha–clay composite, J.

Some studies concerning the mechanical properties and the structural reliability of the structural members made of concrete block masonry were reported by the investigators (Bronius et al. 2009; Ximei and Mark, 2010; Gihad et al., 2007) [1-3].
The mix proportion of the concrete as described in Table 2 was determined according to a foregoing investigation as reported by Xiao et al. (2005) [11].
Considering the spectral density properties of Type-II site soil, El Centro earthquake wave (ELW, 1940), Shanghai artificial wave (SHW) were selected for comparisons.
Except that the SHW accelerogram is one-dimensional input, the Wenchuan and El Centro earthquake records are both two-dimensional inputs.
N-S components of the Wenchuan earthquake wave and the El Centro earthquake wave match along with the X direction of the RAC block masonry model.

A. et al.: J.
Uematsu et al.: Appl.
Fukatsu et al.: Jpn.
Mathiot et al.: J.
Takahasi et al.: J.