Search results

Lattice constants Li4Ti5O12 Li7Ti5O12 Measured value 8.365 8.353 First-principles (Adib et al.) [24] 8.403 8.335 Calculated results GGA 8.344 8.265 GGA+U+J0 8.543 8.498 We calculated average intercalation voltage which can be obtained from first principles calculations using the Nernst equation according to Eq. 2, [23]
[9] Gieu J-B, Courrèges C, El Ouatani L, Tessier C , J.

(4) The change of the Gibbs free energy, ∆G(n), due to cluster formation is given by: )( π4] )1[()( 2 nW R x xnnG el vacCun nCu Cu nv Cu + +∆+∆−−=∆ −γ µ µ αα
Stepleman et al.

Chemical Composition (weight percent) API X70 API X80 Weld Metal Weld Metal Element Base Metal Externa l Interna l Base Metal Externa l Internal C 0.08 0.06 0.06 0.04 0.07 0.08 Si 0.18 0.339 0.342 0.18 0.25 0.21 Mn 1.55 1.59 1.55 1.85 1.86 1.97 P 0.01 0.0085 0.008 0.024 0.017 0.017 S 0.002 0.0036 0.0032 0.004 0.004 0.005 Al 0.043 0.02 0.021 0.033 0.004 0.005 Cu 0.01 0.054 0.051 0.01 0.049 0.045 Nb 0.055 0.025 0.027 0.073 0.044 0.045 V 0.051 0.044 0.048 0.005 0.007 0.004 Ti 0.017 0.01 0.012 0.016 0.015 0.010 Cr 0.02 0.056 0.056 0.32 0.16 0.17 Ni 0.02 0.028 0.027 0.02 0.023 0.021 Sn 0.02 - - - - - N 0.007 - - 0.004 - - B 0.0004 0.0041 0.0031 - 0.0001 0.0001 Ca 0.003 - - 0.001 - - Sb 0.02 - - - - - Mo - 0.213 0.186 0.03 0.3 0.28 Pcm 0,17 0,20 0,16 0,19 Table1.
Component Content Sodium Thiosulphate (Na2S2O3) 10 -3 mol/l Sodium Chloride (NaCl) 5%vol Acetic Acid (CH3COOH) 0.5%vol Table 3 - Chemical composition of the SSRT test solution The comparative analysis of the stress-strain curves was undertaken on the basis of the following parameters; Yield Strength * +yu ; Ultimate Tensile Strength * +UTSu ; Rupture Strength * +fu ; Elongation at Rupture (El%); Reduction in Cross Sectional Area at Rupture (RA%); and Time to Rupture (TR).

Yi: Combustion Synthesis of NiTi, niTi-X (X=Fe, Al, Pd) Shape memory Intermetallic Compounds (University of Auckland 1990) [16] C.P.
Tyber, A.El.M.

References [1] E.L.
Archer et al: Control Engineering Practice, 2000, p. 487

[4] Nasr-El-Din et al, Challenging Wellbore Cleanouts with Coiled Tubing Made Easy with Computer Modeling Technology.

The crystallization in fast ionic glassy silver oxy salt system has been systematically studied by Adams et al. [18] and they have reported an increase in the conductivity below the glass transition temperature Tg.
El-Muraikhi, J.

El-Ziady, Effect of cetyl trimethyl ammonium bromide on the corrosion of carbon steel in acids, Mater.
Al-Sabagh, Corrosion inhibition of mild steel in 1 M sulfuric acid solution using anionic surfactant, Mater.

Neuman et al. [12] tested acid fracture conductivity at closure stress higher than 5000psi for Brazil off-shore carbonates and found that acid fracture conductivity can be retained at closure stress higher than 5000psi in case of channel created in the surfaces.
Nasr-El-Din.: Effect of Acid Spending on Etching and Acid-Fracture Conductivity.

Small-scale and Artisanal mining Often one refers to “Artisanal and Small-scale Mining” (ASM) when talking about “mining by individuals, groups, families or cooperatives with minimal or no mechanization, often in the informal (illegal) sector of the market” (Hentschel et al., 2002).
Villas-Bôas, Chirstian Beinhoff Editores, pp. 79-92 [21] Vargas Penna, P.C. (2009) "O Panorama da Mineração Brasileira", Comissão de Serviços de Infra-estrutura, Brasilian Institute of Mining (IBRAM) [22] Chaparro Ávila E. (2003) Small-scale mining: a new enterpreneurial approach, CEPAL – SERIE Recursos Naturales e infraestructura [23] De Mendonça M.G., Bardella Castro J.A. (2011) Atividade mineral Goiana de pequeno porte: um estudo sobre o controle de impacto ambiental, Anais de iniciação cientifica da UNUCSEH, vol.4 [24] Kilgerman D.C., La Rovere E.L., Costa, M.A. (2001) Management on Small-Scale Gold Mining Activities in Brazil, Environmental Research, Section A87, pp. 181-198 [25] Hilson, G.