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Online since: April 2005
Authors: Elena Landi, Anna Tampieri, Gian Carlo Celotti, Simone Sprio
Polarized samples immersed in SBF at 37 °C for times ranging between 16 and 192 h showed the formation of HA crystals onto the negatively charged surface, starting from a number of isolated grains which subsequently merge in large aggregates.
Online since: November 2011
Authors: Qiang Zhang, Yi Chu Yuan, Bei Zhi Li, Zhen Xin Zhou
In this paper , the grain was abstracted as an ideal cone with the top angle of 106°and the height of 0.12mm, while the work piece dimension was 4×3mm.
The number of elements along the direction of grinding depth was about 3 to 4, using the hourglass control method to control the excessive distortion of grids and selecting the reduced first-order linear and plane quadrilateral element for its high stability, shown as Fig.1 .
Online since: January 2012
Authors: Jian Lin Li, Jie Liu, Jian Cai, Lei Xiao, Shi Wei Luo
The lithologic characters in plant area are slightly weathered ash green banding mica marble and grey black medium-thick or thick fine-grained marble.
The finally determined network parameters are as follows: we assume that the learning rate of BP network is 0.906,the momentum factor is 0.906,the maximum training number is 3000,the error precision of network is 10-5.
Online since: August 2007
Authors: Young Seog Lee, S.I. Kim, D.W. Kim, Y.C. Yang, D.J. Paik, Shi Hoon Choi
To enhance the formability of the GA steel sheet, the previous works [1-5] focused on controlling several factors such as grain size, crystallographic orientation, temperature, coating thickness and phase composition of the intermetallic layer.
Those for the coating layer is 220E3[MPa], Length [mm] Thickness [µm] Number of elements Substrate 17 686 32445 Coating layer 17 4.667 3708 Cohesive element 17 2.333 1854 Table 2 Dimensions of substrate, layer and cohesive element � Coating layer Steel matrix Steel matrix Lower die Specimen Upper die 341[MPa] and 0.27, respectively.
Online since: April 2010
Authors: Yu.A. Chesnokov, Andrey N. Dmitriev, G.Yu. Arzhadeeva
Besides such approach provides the simple possibility of specification and expansion of number of the factors influencing the carbonization process at a sacrifice of correction or addition of corresponding dependences in: k k nB ii nB nV ii nV F F F F f )1(....)1( )1(.....)1( )( 1 1 11 11 α α α α ω +⋅⋅+ +⋅⋅+ = , (1) where )(ωf - the function of the technological and statistical parameters of burden as a result of which calculation change of parameter CRI is defined; iα, kn - the coefficients providing corresponding influence of the factor; iF - the actually factor (the characteristic of burden, parameter of coking conditions of, etc.).
(8) (at the СО2 → 0.0; νK → 1.0; at the СО2 → 1.0, νK → 1.28); ς - the labyrinthine factor (0.02-0.03); ϕ - porosity of coke (0.4-0.5); 0D - the diffusion coefficient of СО2 at normal conditions (0.137 cm2/s); n - the index in dependence of diffusion factor on temperature (1.5-2.0); S - the Thiele criterion, it is directly proportional to radius of a piece (of coke, ore, grain of the catalyst, etc.) and usually it is equate > 5-10 for materials of industrial size ( 0r > 0.5 cm).
Online since: July 2010
Authors: Hiroshi Funakubo, Hiroshi Uchida, Seiichiro Koda, Yuki Mizutani
., Ti4+, Nb5+, or W 6+), and m is the number of BO6 octahedral in pseudo perovskite blocks (m = 1, 2, 3, 4, etc.) [1-3].
The SrBi4Ti4O15 film prepared on (100)SrRuO3//(100)LaNiO3/(111)Pt/TiO2/(100)Si exhibited higher current density than that on (100)LaNiO3/(111)Pt/TiO2/(100)Si, which had unhomogeneous microstructure with rough grains rather than others.
Online since: January 2006
Authors: Tadashi Takenaka, Naoki Ohashi, Hajime Haneda, Isao Sakaguchi, Takeshi Ohgaki, Yoshitaka Adachi, Haruki Ryoken
., pseudo-grain-boundary [9].
Moreover, the number of oxygen defects likely represents the degree of non-equilibrium behavior in the films.
Online since: November 2005
Authors: Yoshihiro Tomita, Kisaragi Yashiro, Atsushi Furuta
Introduction Nanoindentation is extensively used to explore the material properties in the sub-micrometer region, e.g. grain boundaries in metal or thin films on a substrate of opt-electronic devices [1, 2].
The molecular mass of a folded chain is 6724 while the total number of methylene group in the crystal is 268960.
Online since: April 2012
Authors: Xi Peng Xu, Xiu Yu Chen, Shen Gui Huang, Nian Duan
It first extracts a certain number of points set from target data randomly, then calculates them by certain mathematical model to find out those that meet the requirements, and finally gets the maximum points set which meet the requirements through operating such methods iteratively.[3,4] Image Fusion Algorithm.
In this paper, the size of diamond grain in grinding wheel is from 140 Mesh to 170 Mesh.
Online since: October 2010
Authors: Kun Zhong, Zhong Hua Du, Liang Zhou, Li Li Song
Then the ignition grain is fired at assigned time and place.
One comprehensive defense system consists of number of airbag interception ammunitions.
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