Search results

[14] Dash R, Chmiola J, Yushin G, Gogotsi Y, Laudisio G, Singer J, Fischer J, et al., Titanium carbide derived nanoporous carbon for energy-related applications, Carbon. 44 (2006) 2489-2497
[17] Hoffman EN, Yushin G, El-Raghy T, Gogotsi Y, Barsoum MW, Micro and mesoporosity of carbon derived from ternary and binary metal carbides, Microporous Mesoporous Mater. 112 (2008) 526-532.

[6] Zhu Jian, Yu-Yuan Wei, Chen Chen , Zhang Yong, Lu Le, “A Compact 5-bit Switched-line Digital MEMS Phase Shifter”,Proceedings of the 1st IEEE InternationalConference on Nano/Micro Engineered and Molecular Systems ,January 18 - 21, 2006, Zhuhai, China [7] Zhu J, Zhou B Lin, el al, "A 4-bit digital MEMS phase shifter" [A],Proc.

Then we can get an optimal solution of X through weighted iterative least squares algorithm: X=HTWH-1HTW(3) Here the weight matrix W is the inversion of covariance matrix Σ=diagσ12,σ22,…,σn2(4) σi2=σi,URA2+σi,iono2+σi,tropo2+σi,mp2(5) Where, σi,tropo=0.08×1.0010.002001+sin2el, and σi,mp=0.18-0.1∙el-5/85.
[9] Juan B, et al.

Sanlúcar Km 7. 11510, El Puerto de Santa María, Cádiz.
Element Si Fe Cu Mn Mg Zn Cr Ti Ga V Al 2024-T3 0.10 0.22 4.11 0.56 1.34 0.13 0.01 0.01 0.01 <0.01 93.49 5083-T0 0.10 0.30 0.02 0.50 4.22 <0.01 0.08 0.02 0.01 0.01 94.73 6082-T6 1.03 0.34 0.06 0.57 0.87 0.01 0.01 0.03 0.01 <0.01 97.04 7075-T6 0.06 0.16 1.25 0.08 2.32 5.47 0.20 0.01 0.01 0.01 90.41 Butt welding was carried out on the aluminium alloys samples using a high power diode laser with a maximum power of 2.8kW (DL028S of Rofin).

Anyhow, there are still some aerodynamic problems to be urgently solved, such as low-speed start, vibration caused by fluctuating wind or random gust, static stall, dynamic stall et al.
Acknowledgements This work was financially supported by high-level personnel research start-up project of North China University of Water Resources and Electric Power (001391) References [1] Mohamed Gad-EL-Hak, Flow Control,passive,active,and reactive flow management[M], Cambridge University,2000 [2] Liebeck R H.

al [14, 15] have used tungsten hexacarbonyl to grow crystalline and amorphous tungsten oxide.
A.Rougier, F.Portemer, A.Quede, and M.El Marssi, Applied Surface Science 153, 1 (1999). 5.

The two typical ground motions were selected as earthquake input of test TE and TN respectively , namely El Centro (N-S) and Ninghe records, their dominant periods are 0.55s and 1.04s respectively.
Ye, et al., Earthquake Engineering and Engineering Vibration, Vol.3, No.2, p205-214 (2004).

[3] E.L.
Zhou, et al.

‘OMER HSS-AL ground end mills, DIN844, 2F.10x10x22x72 mm’ were used for the purpose of milling material tests, the experimental conditions are composed, spindle speed (510,572,637 rpm), feed rate (45, 50, 55 mm/min), depth of cut (1 mm), Level depth of cut (3,5,10 mm), milling direction (down-cut), and cooling (soluble oil), respectively.
Abou-El-Hossein, et., 2007.

Comparative study of spwm and hepwm techniques for photovoltaic inverter BENDIB D1, a, AKEL F1, CHIKH M1, LARBES C2, LAOUR M1 and MAHRANE A1 1Unité de Développement des Equipements Solaires /Centre de développement des énergies renouvelables, UDES RN N°11, Bou-Ismail, 42415, Tipaza, Algérie 2Laboratoire de Dispositifs de Communication et de Conversion Photovoltaïque LDCCP Ecole Nationale Polytechnique d’ALGER, 10 av Hassan Badi BP 182, El Harrach Alger, Algérie abendib.douadi@gmail.com Keywords: pulse width modulation, pv array, voltage source inverter, sinusoidal modulation, harmonic elimination, maximum power point, power quality.
Mahrane et al.