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Online since: June 2014
Authors: Zhen Mei Wang, Ying Huang, Fei Shen
Information entropy of land use structure change in time and space of Wuan City was analyzed by Tao jin el al., They found that information entropy was continuously growing and equilibrium degree was higher, and economic factors and population factors were the main driving forces of change[4].
Xiu lina et al. analyzed land use change and its impact factor of Tianjin City, and the results showed that the most farmland area reduced, but land for construction area increased.
Land use change driving force factors include many aspects, such as natural, social, economic et al.
Online since: August 2014
Authors: Jing Song Wang, Zheng Wei Xiong, Ping Sun, Sen Lu
Journal of Non-Crystalline Solids, 250-257(2010), p.356 [8]Rami Al-Oweini, Houssam El-Rassy.
[13]Yuping Duan, Shunhua Liu, Hongtao Guan, et al.
(in chinese) [14]Li Ma, Xing Zheng, KeLong Huang, et al.J.Cent.South Univ.
Online since: July 2020
Authors: Ameen Hadi Mohammed, Tamador Ali Mahmood, Selvana Adwar Yousif, Aminu Musa, Nerodh Nasser Dally
Synthesis, Characterization and Reactivity Ratios of Poly Phenyl Acrylamide-Co-Methyl Methacrylate Ameen Hadi Mohammed1,a*, Tamador Ali Mahmood2,b, Selvana Adwar Yousif3,c, Aminu Musa4,d and Nerodh Nasser Dally5,e 1,2,3,5Department of Chemistry, College of Science for Women, University of Baghdad, 10071 Al Jadria, Baghdad, Iraq 4Department of Pure and Industrial Chemistry, Faculty of Natural and Applied Sciences, Umaru Musa Yar’adua University, Katsina, Dutsin-Ma Road, P.M.B 2218, Katsina 820001, Nigeria aameenhadi80@yahoo.com, btamadhor_mahmaud@yahoo.com, cSilvanaedwer@yahoo.com, daminu.musa@umyu.edu.ng, enerodhnasser@yahoo.com Keywords: Phenyl acrylamide, methyl methacrylate, reactivity ratios, sequence distribution.
[7] M.H El-Newehy, S.S Al-Deyab, A.M Al-Hazmi, Reactivity ratios for organotin copolymer systems, Molecules. 15 (2010) 2749-58
Online since: May 2022
Authors: Victor Veliadis
Furthermore, the hardness of SiC results in low photoresist selectivity and a “hard” mask, usually composed of metal or dielectrics, is required for SiC photolithographic patterning and etch. 0.7 µm deep SiC mesas, trenched using a “silicon” reactive-ion etch (RIE) tool and a Cr/Al mask, are shown in Fig. 2.
Reactive-ion etched 0.7 µm deep vertical SiC mesas using a Cr/Al mask.
The as-implanted depth profiles are retained after the anneal for Al, P, and N as expected from their low diffusion constants.
El-Hinnawy, P.
Online since: April 2008
Authors: Jue Zhong, Shi Cheng Hu, Wei Ce Ma, Xiao Qian Li
As the ingot is withdrawn from the bottom of the mold, water jets impinge on the surface, directly cooling and completely solidifying the ingot [2]. 7B50 aluminum alloy is a kind of precipitation hardening Al-Cu-Zn-Mg alloy, with a vast number of applications in the aerospace industry.
The peculiar chemistry of this alloy makes a highly depleted eutectic of the Al-Cu-Zn-Mg phases.
Segupta et al.[11] reviewed the previous work on the modeling and simulating of the direct chill casting process.
The resulting total strain vector, { }ε∆ , may be expressed as follows: { } { } { } { } { }CTpl th el εεεεε ∆+∆+∆+∆=∆ (3) Where { }elε∆ is the elastic strain increment vector, th ε∆ is the thermal strain increment vector, { }plε∆ is the plastic strain increment vector and { }CTε∆ is the creep strain increment vector.
Online since: June 2007
Authors: Robert J. McMurray, Alan G. Leacock, Desmond Brown
Yoshida et al. [1, 2] proposed a series of springback models for single and double sided clad material that indicated the influence of cladding thickness on the final curvature during stretch bending.
The other influencing factor highlighted by Yoshida et al. [1, 2] was cladding strength.
A.El-Domiaty, M.
Al-Ansary, Determination of Stretch-Bendability of SheetMetals.
Online since: January 2013
Authors: Yu Long Zhang, You Yin, Ryota Kobayashi, Sumio Hosaka, Rosalena Irma Alip
Multi-Level Storage in Lateral Phase-Change Memory: from 3 to 16 Resistance Levels You Yina, Rosalena Irma Alipb, Yulong Zhang, Ryota Kobayashi, and Sumio Hosakac Graduate School of Engineering, Gunma University 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan ayinyou@gunma-u.ac.jp, bt11802272@gunma-u.ac.jp, chosaka@el.gunma-u.ac.jp Keywords: phase-change memory, lateral structure, multi-level storage Abstract.
SiO2 SiN TiN EC Al Al ZnS-SiO2 20-nm TiN 180-nm STN 30-nm TiN 120-nm STN L (c) Fig. 1 (a) A proposed multi-level (e.g., three-state) PCM device with two PC layers (PC1 and PC2) of different thicknesses (th1 and th2).
Zuliani: et al.
Online since: May 2016
Authors: Hong Mei Li, Xiao Qiang Ren, Jian Heng Sun, Wei Lu, Jun Lin Wang
The three dimensional El-Centro earthquake acceleration time series is selected as the input acceleration, in which the three peak accelerations of the time series in both horizontal and vertical directions are ax =2.1014m /s2, ay =3.4170m /s2, az =-2.0635m /s2, respectively [13].
Shen., et al.
Imai, et al.
Orawa, et al.
Online since: August 2018
Authors: Germán Díaz-Ramírez, Jabid E. Quiroga Mendez, Octavio Andrés González-Estrada
In this regard, Wang et al. [10] have developed methods for woven fibres to use RVE with periodic boundary conditions for finite element analysis in micro and meso scales.
Mina, “Influence of Incorporation of Natural Fibers on the Physical, Mechanical, and Thermal Properties of Composites LDPE-Al Reinforced with Fique Fibers,” Int.
Reyes Herrera, “Análisis de integridad estructural de tuberías de material compuesto para el transporte de hidrocarburos por elementos finitos,” Rev.
Lomov et al., “Textile composites: Modelling strategies,” Compos. - Part A Appl.
Online since: August 2016
Authors: Sergio Luiz Mineiro, Maria do Carmo de Andrade Nono, Francisco Piorino Neto, Daniel Alessander Nono, Eron Fernandes da Silva
The individual analyzes obtained by EDX in gray region showed the presence of Al and Zr chemical elements.
The images obtained by EDX for the Al and Zr chemical elements (Fig. 3) evidence homogeneous dispersions of zirconium and aluminum in the sintered ceramics.
a) b) Fig.3 EDX images obtained by image scanning of the characteristic fracture surface of the sintered ceramic composite, showing the distribution of chemical elements where the light elements are: a) Al and b) Zr.
[2] E.L.
Showing 7701 to 7710 of 9913 items