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Online since: December 2013
Authors: Fernando Vegas, Camilla Mileto, Francisco Javier Alejandre, Juan Jesús Martín, Lidia García Soriano
Mileto et al.: The restoration of rammed earth architecture in the Iberian Peninsula – criteria, techniques, results and perspectives.
Moraño: El Castell de Nules (La Vilavella) (inédito, Valencia 2010) [6] UNE 103.200.
Martín et al.
Online since: July 2014
Authors: Min Liu, Liang Xiong Huang
X is controlled variable, including three categories: firstly, variables that reflect the environment factors of regions mainly including Carbon dioxide emissions per unit of GDP (lgco2), wastewater emissions per unit of GDP (lgwat) and the effective tax rate (el); Secondly, variables that reflect the economic structure factors, mainly including real per capita GDP and its squared term (ly&ly2), the proportion of Second industrial added value of GDP (wg2), external dependence degree (ti) and urbanization rate (cir).
To solve the problem of endogeneity, by the method of Huang et al. [2]—the spatial systematic GMM estimators (SBB) and spatial difference GMM estimators (SAB) are used to estimate it.
Similar analysis can be found in Huang et al. (2011) and Shu and Huang (2012).
Online since: February 2012
Authors: Chung Chen Tsao
Enemuoh et al. point out the objective function (drill tool geometry) has a strong nonlinearity in terms of spindle speed and feed rate within the wide range of experimental cutting parameters [1].
Koenig et al. investigated the effects of processing variables on drilling damage [13,14].
El-Gizawy and A.C.
Online since: March 2012
Authors: Yazdan Khoshjahan
() Earliest finish time of activity i Latest finish time of activity i The RCPSPWETDC can be conceptually formulated as follows: If activity i finish at time t Otherwise (1) (2) (3) (4) (5) (6) Since Blazewicz et al. [6] have shown that the RCPSP belongs to the class of the strongly NP-hard problems, then RCPSPWETDC is also a NP-hard problem and in the next section GA is proposed to solve it. where is a real number denominating the distance parameter.
We used a set of benchmark problem instances generated using the project generator ProGen developed by Kolisch et al. in [10].
[13] Herroelen, W.s., demeulemeester, E.L., De Reyck, B.
Online since: November 2013
Authors: Seong Ho Son, Sung Cheol Park, Hyeong Mi Kim, Hong Kee Lee, Won Sik Lee
Hadian et al. [7] and Ebrahimi et al. [8] reported that in Ni-rich Ni-Fe alloy (5-50 wt.
El-Sherik, J.
Online since: January 2009
Authors: M.S. Aida, H. Moualkia, S. Hariech
Aida 1 1 Laboratory of Thin Films and Interface, Faculty of Science, Department of Physics, University Mentouri of Constantine 25000, Algeria 2 University Larbi ben M'hidi of Oum- El- Bouaghi., Algeria a email: moua_lkia@yahoo.fr Keywords: CdS thin films, Chemical bath, Optical properties, Structural properties Abstract: The present work deals with the preparation and characterization of cadmium sulfur (CdS) thin films.
Sasikala et al [14] investigated the chemical bath preparation and the properties of CdS thin films. pH, temperature, concentration of complexing agent, and concentrations of reactants (cadmium sulfate and thiourea) are the major parameters of CdS thin film deposition [15].
Al.
Online since: September 2007
Authors: Vijay G. Ukadgaonker, Sunil Bhat
Fig. 1 Cohesive zone across a bimetallic interface and its finite element discretization (b) (a) Z Parent body, A Interface body, B Cohesive zone Applied load Tip Crack axis Crack Interface Axis y,v Crack tip A σ B σ Path P Cohesive zone a l b 2 )(a∗δ Interface x,u (x = 0, y = 0) Axis 2 )0(∗δ Crack axis Magnified view at Z Alloy steel 8 noded plane 82 solid element η ς Constraints 1 2 3 4 5 6 7 8 x 0 B B ( ( ( ( O 700 MPa 1800 MPa (c) Maraging steel O O O Besides various researchers, Sugimura et al.[1] notably performed finite element analysis of the crack growing towards a strength mismatched interface and confirmed the effect of plasticity playing an important role in characteristics of the crack near such an interface.
Wappling et al.[2] obtained the following solution for critical crack opening displacement, ∗δ (x), in the cohesive zone of Mode I crack, in linear elastic regime, near the interface of bodies A and B having identical elastic but different plastic properties: )(2 )( )( ln )( )( ln ))((2 )()( )()( ln )( 2 4 )( ) (                               −+−           +−+ −−+ +           −−+ +−+ − +         −++−         −+++ −+−+ +−+ = ∗ xlal lxla lxla x lxla lxla a xlala xlala xlala xxla K E x AB A bimetallic C π σσ π σ π δ (1) Since, A C E K σ δ 2 )0( = ∗ , Eqn. (1) takes the form [ ] )(2 )( )( ln )(2)( 2 4 ) ( 2                     +−           −+ ++ − +
Contribution of cohesive stresses, cδ , in )0( * δ is        − El B π σ8 .
Online since: March 2018
Authors: Bondan Tiara Sofyan, Imam Basori, Hafsah I. Pratiwi
. % Mn increased the elongation of Cu-49Zn-1.1Pb-0.45Fe, and even Ovat et al. [8] declared that the addition of Mn up to 5 % on Cu-15Zn remained increase the elongation without sacrificing the elongation and hardness.
The increase in Al content also reduced the SFE of Cu alloys [14].
El-Danaf, S.R.
Online since: March 2019
Authors: Rahimah Embong, Andri Kusbiantoro, Amalina Hanani Ismail
Leached elements from coal bottom ash treated with different concentration of H2SO4: (a) 0.1 M (b) 0.5 M (c) 1.0 M Chemical pre-treatment process was very effective in altering the chemical composition of CBA by removing metals like Aluminium (Al), Magnesium (Mg) and Iron (Fe).
The combination of 1.0 M H2SO4 solution and 1 h impregnation duration recorded a high removal of Al with 43 ppm, followed by Iron and Magnesium with 31 ppm and 4 ppm, respectively.
El-Harbawi, N.
Online since: March 2005
Authors: Alexander M. Jamieson, Nopphawan Phonthammachai, Morakot Rumruangwong, Sirirat Jitkanka, Erdogan Gulari, Sujitra Wongkasemjit
As evaluate by Winter et al., the gelation time increase as increasing of HCl:alkoxide molar ratio.
Khalil, K.M.S., Baird, T., Zaki, M.I., El-Samahy, A.A., Awad, A.M., Colloid Surface A 132, 31 (1998). 7.
Nystrom, B., Kjoniksen, A.L., Lindman, B., Langmuir 12, 3233-3240 (1996).
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