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Online since: July 2022
Authors: Imad Manssouri, Khalid Cherkaoui, Hassane Sahbi, Silvia Erba, Asmae Khaldoun, Othmane Noureddine, Houssame Limami
Masuka et al. [25] studied unfired brick with 1.5, 3 wt.% wood waste.
El Abbassi, C.
Al-Fakih, B.
Khaldoun et al., “Quick Clay and Landslides of Clayey Soils,” Phys.
Latif Al-Mufti, A.
Online since: June 2020
Authors: Mustapha Temmar, Youssef Touggui, Salim Belhadi, Salah-Eddine Mechraoui, Mohamed Athmane Yallese
Çiçek et al. [2] applied the Taguchi method to examine the surface roughness when drilling of AISI 316.
Al) N gives better performance than the multi-layer coated insert TiCN+Al2O3.
Nur et al. [9] conducted a study using coated carbide insert to machine AISI 316L under dry turning condition.
Zerti et al [12] used the Taguchi method to minimize some response parameters in dry turning of AISI D3.
El-Hofy, M.
Online since: July 2014
Authors: Yu Liu, Jun Xue Ren, Kalomba Mboyi
Radchenko, et al.
Jordan, E.L.
Polk, et al., Validation of the NSTAR ion propulsion system on the Deep Space One mission - Overview and initial results, in 35th Joint Propulsion Conference and Exhibit, American Institute of Aeronautics and Astronautics, Reston , 1999
Polk, et al., An overview of the results from an 8200 hour wear test of the NSTAR ion thruster, in 35th Joint Propulsion Conference and Exhibit, American Institute of Aeronautics and Astronautics, Reston , 1999
Brophy, et al., Ion Propulsion System (NSTAR) DS1 Technology Validation Report, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, 1999.
Online since: December 2009
Authors: J.S. Ajiboye, S.A. Balogun, A.T. Agboola, G.J. Eke
Shen et al [4] studied severe plastic deformation (SPD) in an eutectic tin-lead alloy by imposing fast bending at room temperature, in an attempt to examine the microstructural response in the absence of thermally activated diffusion processes.
Widlicki et al [5] investigated the influence of hydrostatic extrusion on the microstructure of 6082 aluminium alloy.
Based on these results, they proposed a modification to ASME Code formulae for calculation of more realistic values of the stress indices for bends up to 180 o Krzysztof et al [7] examined how various SPD processes, in particular hydrostatic extrusion (HE), alter the microstructure and properties of metals with different stacking fault energies, such as copper and aluminum.
Chemical composition of the lead alloy examined (% wt) Pb Sn Sb Cu As Bi Zn Al Cd 84.6 5.35 8.13 0.7 0.25 0.10 0.005 0.005 0.05 The sand cast billets were machined to a size slightly smaller than that of the container for smooth insertion of the billet into the container.
El-Kebir and J.K.
Online since: September 2013
Authors: Atria Pradityana, Sulistijono Sulistijono, Abdullah Shahab
According of experiment by Adam et al 2013 [32], that MP contains phenolic compounds and flavanoid where they are part of antioxidants.
Al-Otaibi.
S., Al-Mayouf.
A., Al-Mazroa.
El-Etre.
Online since: April 2009
Authors: Graeme E. Murch, Elena V. Levchenko, Alexander V. Evteev, Irina V. Belova
For example, Sun et al., [3] have developed a simple and generic approach for the large-scale synthesis of hollow nanostructures made of Au, Pt and Pd.
Using the Kirkendall effect at the nano-level, Yin et al. [4] demonstrated the formation of hollow nanospheres of cobalt oxide, sulphide and selenide starting with nanocrystals of cobalt in an environment of the non-metal.
We chose the Metropolis et al. algorithm for its transparency and to provide a clear relationship between KMC steps per atom (KMCSA) n and real time t.
Erdonmez, et al.: Science Vol. 304 (2004), p. 711
Allnatt, E.L.
Online since: February 2013
Authors: Jun Zhang, Shu Bin Wu, Bo Li
Moreau et al. [7,8] studied the dehydration of fructose in the presence of dealuminated H-form mordenite at 438 K in a solvent of water and MIBK (Methyl Iso Butyl Ketone), and a fructose conversion of 76% and a 5-HMF selectivity of 92% were achieved at the same time.
Takagaki et al. [9] found that 42-54% yield of 5-HMF could be produced from glucose and sucrose through a simple one-pot synthesis using a combination of Amberlyst-15 and Mg-Al hydrotalcite as catalyst in N,N-dimethylformamide at 373 K.
The sulfur content of catalyst was determined with Elementar Vario EL according to the general method of element analysis (JY/T017-1996).
However, glucose could be converted into fructose after two-step isomerization, so the whole proposed mechanism for the conversion of high fructose corn syrup into 5-HMF was shown in Scheme 1, based on the present study and previous work from Van Dam [17], Antal [18] and Kruster et al [19].
Online since: June 2014
Authors: Peter Groche, Dominik Huttel, Alexander May, Markus Euler
., et al., Ziehen von Papier und Karton I.
[7] Lohse, H., et al., Ziehen von Papier und Karton II.
[9] Groche, P., et al., Experimental and numerical investigation on the hydroforming behavior of paperboard.
[14] Back, E.L.
[17] Johansson, A., et al., Paper friction - influence of measurement conditions.
Online since: November 2010
Authors: Hong Lin, Xiao Chong Zhao, Yi Zhu Liu, Xin Li, Jian Bao Li
In the opinion of Graetzel et al. [5], the electron transport and recombination processes govern the operation of the flexible DSCs.
Miyasaka et al. reported a simple doctor-blade method to prepare nanocrystal TiO2 films at a low temperature [34,35].
In our laboratory, Li X et al. prepared a mesoporous TiO2 film with graded structure on a conductive indium-tin oxide (ITO)-coated polyethylene naphthalate (PEN) polymer sheet by the doctor-blade method, where the smaller particles synthesized by hydrothermal method were used as binder [36], and investigated the influence of the components of the graded structure on the electron transport, electron recombination and photovoltaic performance of the flexible DSCs in such a film by nitrogen adsorption-desorption measurement, simulation of graded structure and EIS analysis [37].
Zd(El) represents for Warburg impedance relative to the Nernst diffusion of I3 in electrolyte.
The impedance of the photoanode is given by Kern et al. [52] which is similar to Bisquert's equation [51] as               +                          +      = 2/1 2/1 2/1 1 coth 1 1 k d k k d k w i i RZ ϖ ϖ ϖ ϖ ϖ ϖ ϖ ϖ (2) where 2 / LDcbd =ϖ , τ ϖ /1== kk (3) Here Dcb, τ, k, kB, T, q, A, and ns represent effective diffusion coefficient of an electron in the TiO2 nanoparticle, life time of an electron in the film, reaction rate constant for the recombination of an electron, Boltzmann constant, absolute temperature, charge of a proton, the electrode area, and the electron density at the steady state in the conduction band, respectively.
Online since: December 2024
Authors: Rami Hawileh, Jamal A. Abdallah, Abdallah Hajjaj, Abdulaziz Aljarwan, Hind Alharmoodi
With the heating of the concrete specimens, there is an expected discoloration to red-brown hues according to Lee et. al [18] where this reddish color is expected to appear in temperatures ranging between 300°C to 600°C, primarily because of the dehydration of the cement paste [19].
Such result aligns with Sancak et al. [20] reporting that NWC experiences higher residual strength losses than LWC.
Al Rashed, H.
Al Nassara, A.
El-Hacha, M.
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