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Online since: May 2006
Authors: Maria-Teresa Freire Vieira, Ana Sofia Ramos, Manuel F. Vieira, Filomena Viana
Baeslack et al. [30] applied this process to
Ti-48Al-2Cr-2Nb.
Ti(Al) and Al(Ti) alternating nanoscale layers resulted from the time that the substrates under rotation passed in front of each target.
Multilayer nanostructured thin films with nanometric period due to the high number of interfaces have increased diffusivity (self-propagation exothermic formation reactions of Ti with Al, where Ti-Ti and Al-Al bonds change to Ti-Al [46]).
[29] E.L.
Wang et al.: J.
Ti(Al) and Al(Ti) alternating nanoscale layers resulted from the time that the substrates under rotation passed in front of each target.
Multilayer nanostructured thin films with nanometric period due to the high number of interfaces have increased diffusivity (self-propagation exothermic formation reactions of Ti with Al, where Ti-Ti and Al-Al bonds change to Ti-Al [46]).
[29] E.L.
Wang et al.: J.
Online since: December 2012
Authors: Hai Yan Wang
BMN
Kacem et al.[2]
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Zhang and Gen [3]
15
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Zhang et al. [4]
14
16.2
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7.8
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GA
15
15.55
9
7
7.45
13
Our proposed algorithm
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14
20
7
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20
The corresponding Gantt charts are shown in Figs. 3–4.
[4] Zhang CY, Rao YQ, et al.
[5] Lawler EL, Lenstra JK, Rinnooy Kan AHG, Shmoys DB.
[9] Qian B, Wang L, Huang DX et al.
[4] Zhang CY, Rao YQ, et al.
[5] Lawler EL, Lenstra JK, Rinnooy Kan AHG, Shmoys DB.
[9] Qian B, Wang L, Huang DX et al.
Online since: January 2012
Authors: Uwe Erb
Structure-Sensitivity of Properties in Polycrystalline Metals
One particularly good comparison of structure-sensitive and structure-insensitive properties observed in conventional polycrystalline materials was given as a table in the classical materials science text by A.L.
Zhou et al. [12] determined upper bound and lower bound solutions for nickel as follows: (5) where Eg, Egb and Etj are the Young’s moduli for the grain interiors, grain boundaries and triple junctions, respectively.
The analysis by Zhou et al. [12] has clearly shown that the Young’s modulus is more or less the same for all nanocrystalline Ni materials with grain sizes larger than 20 nm.
Mat., Vol. 444 (2010), p. 163 [4] A.L.
El-Sherik, U.
Zhou et al. [12] determined upper bound and lower bound solutions for nickel as follows: (5) where Eg, Egb and Etj are the Young’s moduli for the grain interiors, grain boundaries and triple junctions, respectively.
The analysis by Zhou et al. [12] has clearly shown that the Young’s modulus is more or less the same for all nanocrystalline Ni materials with grain sizes larger than 20 nm.
Mat., Vol. 444 (2010), p. 163 [4] A.L.
El-Sherik, U.
Online since: May 2012
Authors: Hong Juan Liu, Yu Jie Zhou, Zhong Zhen Cai, Yan Sun, Jian An Zhang, De Hua Liu
This work studied the PDO production with the strain, D-lactate-deficient mutant K. pneumoniae DC02, which has been constructed according to the procedure of Xu et al. [19].
The concentration of 3-HPA was measured according to the method described by Circle et al [23].The lactic acid optical activity was analyzed by D/L -Lactic acids kit(F)(Bessant, France).
Mu et al. compared the PDO production by K. pneumoniae DSM 2026 using crude glycerol respectively from the alkali-catalyzed methanolysis of soybean oil and from a lipase-catalyzed process.
As the results, 51.3 g/land 53 g/l PDO were obtained [24].Jun et al studied the PDO synthesis by DSM 4799 with raw glycerol, a main by-product (purity 80% w/w) from the methanolysis of soybean oil, and PDO concentration reached 80.2 g/L[25].
El-Ziney, N.
The concentration of 3-HPA was measured according to the method described by Circle et al [23].The lactic acid optical activity was analyzed by D/L -Lactic acids kit(F)(Bessant, France).
Mu et al. compared the PDO production by K. pneumoniae DSM 2026 using crude glycerol respectively from the alkali-catalyzed methanolysis of soybean oil and from a lipase-catalyzed process.
As the results, 51.3 g/land 53 g/l PDO were obtained [24].Jun et al studied the PDO synthesis by DSM 4799 with raw glycerol, a main by-product (purity 80% w/w) from the methanolysis of soybean oil, and PDO concentration reached 80.2 g/L[25].
El-Ziney, N.
Online since: May 2016
Authors: Gerhard Hirt, Markus Grüber
Doege et al. [7] introduced a process control that is based on an analytical model including several simplifications that is capable of calculating the expected forces at each levelling roll.
To determine the roll positions leading to a flat product Pernía et al. [11] introduced an approach employing genetic algorithms for optimising the process parameters.
Oligschläger et al. [12] proposed a setup where the residual sheet curvature is estimated by a single position measurement at the machine’s outlet.
Kaiser et al. [13] presented an FE model that uses pre-calculated curvature values for each single bending operation the investigated long product undergoes when passing through the roller leveller as reference for a control-loop.
El Nadi, R.
To determine the roll positions leading to a flat product Pernía et al. [11] introduced an approach employing genetic algorithms for optimising the process parameters.
Oligschläger et al. [12] proposed a setup where the residual sheet curvature is estimated by a single position measurement at the machine’s outlet.
Kaiser et al. [13] presented an FE model that uses pre-calculated curvature values for each single bending operation the investigated long product undergoes when passing through the roller leveller as reference for a control-loop.
El Nadi, R.
Online since: January 2006
Authors: Yuung Hwa Lu, Fung Huei Yeh, Ming-Tsung Wu
Kim et al. [1] used roll-back method to compare deformed blank profile with objective one.
Lu et al. [2] combines adaptive neuro-fuzzy inference systems (ANFIS) and elasto-plastic finite element to predict the preforming shape of the upsetting process.
Lin, et al. [3] analyzed the anisotropy metal relation between the ear profile and anisotropic of material in drawing.
Zaky et al. [4] discussed anisotropic blank optimization in the cylindrical cup drawing process according to the stress and strain relation of Hill theory [5].
El-Sebaie: J.
Lu et al. [2] combines adaptive neuro-fuzzy inference systems (ANFIS) and elasto-plastic finite element to predict the preforming shape of the upsetting process.
Lin, et al. [3] analyzed the anisotropy metal relation between the ear profile and anisotropic of material in drawing.
Zaky et al. [4] discussed anisotropic blank optimization in the cylindrical cup drawing process according to the stress and strain relation of Hill theory [5].
El-Sebaie: J.
Online since: March 2016
Authors: Wan Jiang, Lian Jun Wang, Wei Luo, Shi Jia Gu
The elemental analysis of ZSM-5 showed that the Si/Al≈720.
Mayerhofer et al. prepared silica glass by consolidated SiO2 nanoparticles using SPS at 1273K and annealed them at 1173K for 5h.[13] The SPS-compacted sample showed a transmittance of 63% in the range of 200~1000nm.
Zhang et al. fabricated transparent silica glass using commercial amorphous SiO2 powder by SPS.[3] Their results showed that the maximum transmittance at λ=200nm was 45% and the transmittance increased from 45 to 85% with increasing λ from 200 to 500nm when the samples were not annealed.
The UV transmittance of the silica glass body prepared by zeolite is also obviously higher than the un-annealed samples reported by Zhang et al.[3] The above results suggest that the raw material is an important factor for the preparation of the highly transparent silica glass.
Abd El-Maksod, Synthesis and characterization of partially crystalline nanosized ZSM-5 zeolites, Ceram.
Mayerhofer et al. prepared silica glass by consolidated SiO2 nanoparticles using SPS at 1273K and annealed them at 1173K for 5h.[13] The SPS-compacted sample showed a transmittance of 63% in the range of 200~1000nm.
Zhang et al. fabricated transparent silica glass using commercial amorphous SiO2 powder by SPS.[3] Their results showed that the maximum transmittance at λ=200nm was 45% and the transmittance increased from 45 to 85% with increasing λ from 200 to 500nm when the samples were not annealed.
The UV transmittance of the silica glass body prepared by zeolite is also obviously higher than the un-annealed samples reported by Zhang et al.[3] The above results suggest that the raw material is an important factor for the preparation of the highly transparent silica glass.
Abd El-Maksod, Synthesis and characterization of partially crystalline nanosized ZSM-5 zeolites, Ceram.
Online since: January 2013
Authors: Xing Zhu, Yong Ci Liu, Qi Rui Zhao, Gui Ping Liu
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Zhang, et al.
Online since: April 2016
Authors: Juan Ramón Lama Ruiz, Francisco Aguayo González, Eduardo González-Regalado, María Estela Peralta Álvarez, María Jesús Ávila-Gutiérrez
Documento aprobado por el Comité Ejecutivo del Grupo de Trabajo de Calidad Ambiental y Desarrollo Sostenible de la CRUE, 2005
[5] Peralta ME, Marcos, M, Aguayo, F.
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Procedia CIRP 7 (2013) 17 – 24 [8] G CERINSEK, et al.
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Procedia CIRP 7 (2013) 17 – 24 [8] G CERINSEK, et al.
[9] B POURABDOLLAHIAN et al.
[10] KHALILI, N.R., et al., From cleaner production to sustainable development: the role of academia, Journal of Cleaner Production (2014)
Online since: March 2016
Authors: Bin Tang, Hong Chao Kou, Jin Shan Li, Ye Man Zhao, Ying Deng, Wei Wu
[9] Hany El Kadi.
Li, Jiao Luo, et al.
[13] Yu Sun, Weidong Zeng, Yuanfei Han, et al.
[14] Xiawei Yang, Jingchuan Zhu, ZhishengNong, et al.
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