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（Adams et al.,2002;Stock et al.,2002;Phan et al.,2003;Nguyen et al.,2004;Nguyen et al.,2006,Shamseldean et al.,1996;Vanessa et al.,2006;Kluge,2004;Garcia et al.,1996,Miduturi et al.,1996;Selcuk et al.,2003;Hominick et al.,1990;Rosa et al.,2000;Zdenek et al.,1993;Xu,1998;Poinar,1976;Nguyen et al.,1992;Fang et al., 2004;Chen et al.,2006）.
Based on investigation of species and distribution,all the research and  application of entomopathogenic nematodes can be carried out.Currently, many countries studied the entomopathogenic nematodes resources and their species,while the survey just carried out in Beijing, Fujian, Guangzhou, Hainan, Hebei, Liaoning and other places in northeast China, but not yet been done in the northwest China（Stock et al.,2002;Phan et al.,2003;Nguyen et al.,2004;Nguyen et al.,2006;Shamseldean et al.,1996;Vanessa et al.,2006;Kluge,2004;Garcia et al.,1996,Miduturi et al.,1996;Selcuk et al.,2003;Hominick et al.,1990;Rosa et al.,2000;Zdenek et al.,1993;Xu,1998;Poinar,1976;Nguyen et al.,1992;Fang et al., 2004;Chen et al., 2006;Zhang et al., 1992;Li et al., 1989;Luan, 2005）.
Parasitol (2002) [8] K.L.Phan, S.Subbotin, N.C.Nguyen, et al. .: submitted to Journal of Nematology (2003) [9] K.B.Nguyen, D.I.Shapiro-Ilan, R.J.Stuart, et al. .: submitted to Journal of Nematology (2004) [10] K.B.Nguyen, U.Gozel, H.S.KÊppenhÊfer, et al. .: submitted to Journal of Zootaxa (2006) [11] M.M.Shamseldean, A.B.Abou El-Sooud, M.M.Abd-Elgawad, et al. .: submitted to Journal of Biol.
Miduturi, M.Moens, W.N.Hominick, et al. .: submitted to Journal of Helminthology (1996) [16] Selcuk Hazir, Nevin Keskin, S.S.Patricia.: submitted to Journal of Biodiversity and Conservation (2003) [17] W.M.Hominick, B.R.Briscoe.: submitted to Journal of Parasitology (1990) [18] J.S.Rosa, E.Bonifassi, J.Amaral, et al. .: submitted to Journal of Nematology (2000) [19] Zdenek Mracek, J.
[31] B.J.Adams, A.Fodor, H.S.KoppenhÊfer, et al.: submitted to Journal of Biol Control (2006) [32] S.A.Nadler, E.Bolotin, S.P.Stock. .: submitted to Journal of Syst.

., especially in a flow and job shops with multi-objective type of production Nakano et al.[3], Fang et al.[4], Cheng et al. [5], Cheng et al. [6], Mattfeld and Bierwirth [7], Wang et al.[8], Asadzadeh and Zamanifar [9].
In a Colorni et al. [10] shows the oriented graph associated with an operation programmed derivate, as in Cheng et al [5].
Here is important to emphasize the work of Fogel et al. [45].
Works by Aarts et al. [48], Laarhoven et al. [49], Aydin et al. [50] and Pinedo [13] is the reference study which has generates many hybrid algorithms.
Yin, E.L.

Pordanjani et al. [41] analyzed the natural convection of a nanofluid flow in a square tank with a fin.
Bouzit et al
Bakalis et al. [45] studied the effect of curvature and Hartmann number on the magnetohydrodynamic laminar flow of a nanofluid behavior in a curved duct.
[49] M.El-Adawy, H.
Al-Kayiem, Magneto-Hydrodynamic effects on Diesel/CNG bubbly flow enhanced by Fe3O4 Nanoparticles: Experimental and mathematical assessments. 

Page et al., 2017).
Several studies (Belkadi et al., 2018; Ferreira et al., 2015; Mouhoubi et al., 2017) have proposed treatments to improve the structural and morphological properties of natural fibres.
Chafei et al. confirmed that boiled flax enhances the flexural strength of the composite about 30% compared to the reference composite (Chafei et al., 2015).
Similar behaviour was reported in the literature (Page et al., 2019).
Construction and Building Materials 101, 730–740. https://doi.org/10.1016/j.conbuildmat.2015.10.120 [13] Khazma, M., El Hajj, N., Goullieux, A., Dheilly, R.M., Queneudec, M., 2008.

For a more complete understanding of the cyclic response of a similar DSS, Mateo et al
Vogt et al. [8] and Degallaix et al. [9] interested in the effect of nitrogen on the cyclic response investigated the behavior of second generation alloys.
Degallaix et al. underline the enhancement on the fatigue life with increasing nitrogen content.
In this regard, Werner el al [20] found that reducing the grain size from 100 to 10 µm increases the yield stress by more than 100 MPa.
In agreement with Vogt et al

The photoluminescence (PL) or electroluminescence (EL) efficiency of a GaInN-based quantum well in the blue region is not so sensitive to the dislocation density [4].
In comparison, the PL and EL efficiencies of AlGaN-based quantum wells are strongly affected by dislocation density [5].
Ohba et al. reported the dependence of the crystalline quality of AlN on growth temperature [17].
For the growth of AlGaN, TMAl and TMGa were commonly used as the source gases of Al and Ga, respectively.
The activation energy of the Mg acceptor as a function of the Al content of AlxGa1-xN is summarized in Fig. 31.

El Hami.
[3] Yoshida Tomohiro, Senjyu Tomonobu, Nakamura Mitsuru, et al, “Position control of ultrasonic motors using two-control inputs H∞ controller”.
Kung, Syuanyi Chen, et al, “Recurrent wavelet-based Elman neural network control for multi-axis motion control stage using linear ultrasonic motors”.

Discussion and Conclusions By doing the similar controlled experiments introduced by Villarreal et al. (2005) [7] in this study, we obtained a UH different from that provided by them.
It is shown that compared with conventional roof, extensive green roof can delay runoff initiation , reduce the total runoff volume, cut the peak flow of runoff and prolong the runoff duration significantly if the initial substrate moisture condition is dry; And even when the substrate layer is wet from previously fallen rain, the extensive green roof can detain a heavy rain effectively by distributing the runoff over a longer time period and thus lower the peak flow of runoff, this finding agrees with the conclusion drawn by Bengtsson et al. (2005) [11] .
[7] Villarreal, E.L. and L.

In this paper, MPC technology based on mixed H2/H∞ control approach [5] is applied to active vibration control of a rail way vehicle and we extend the work Orukpe et al [6] and Orukpe [7] where only the rigid model of the rail vehicle was considered.
Conclusion In this paper, we extend the work of Orukpe et al [6] based on MPC approach for active suspension control of railway vehicle to include flexible modes.
El-Zobaidi, Model predictive control based on mixed H2/H∞ control approach, Proceedings of American Control Conference, New York, USA (2007) 6147 – 6150

Measurement set-up: a, b) MTS with the measurement system – electrochemical cell (corrosive solution and reference electrode Ag/AgCl placed on a sample) with Data Logger for electrochemical potential measurement, c) macrostructures of TIG and FSW welded joints (particular areas of the joint specified) before the static tensile test In this way the level of tensile stress that initiates corrosion processes on TIG and FSW joints of 7xxx series alloys (Al-Zn-Mg) were determined.
These alloys, particularly welded joints, are characterized by high strength properties but poor resistance to stress corrosion cracking as compared to the commonly used 5xxx series alloys (Al-Mg) [4,5].
Summary of mechanical properties of shipbuilding-intended aluminium alloys and their welded joints Mechanical properties Electrochemical properties Mean value of electrochemical potential Alloy / joint Vst [mV] againts Ag/AgCl TS YS El M HV 5 σ=0 σ =max MPa MPa % % MR-ES SP-ES SP-EB MR-ES SP-ES (EB) Base material 7020M w.507 422 362 14.6 25.6 114 -664 7020M w.635 406 347 14.4 27.6 109 -667 7020 310 240 131 104 -749 7050 372 351 13.3 25.6 124 -746 TIG joint made with SPA20 filler 7020M/w.507 380 341 4.8 25.6 111 (weld) -664 -653 -435 -550 -1072 SPA20 80 (HAZ) 7020M/w.635 369 340 6 27.6 107 (weld) -687 -654 -489 -620 -985 SPA20 80(HAZ) 7020 355 304 17 85 (weld) -749 -797 -769 -782 -890 SPA20 104 (HAZ) (-1016) 7050 SPA20 276 210 5.9 24.2 (weld) (HAZ) -746 -539 -729 -1211 -727 (-593) FSW joint 7020M/w.507 347 263 5.1 13 120 -677 -711 -604 -750 -913 TMAZ+ HAZ (-1028) 7020M/w.635 337 216 8.6 16 120 -664 -653 -435 -890