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Online since: February 2011
Authors: Gui Zhen Fang, Chun Hai Wang, Qing Ai, Yin Feng Zhao
The IR data (see Fig. 2-b) shows the appearance of relatively strong and new peak at 1100-1040 cm-1 and 870 - 690 cm-1 (correspond to S=O and S-O respectively, which indicate the of –SO3- group).
The reasons of the reduction of the melting peak of SLS-CS at 75 °C and the appearance of decomposition peak at 249.6 °C was likely to be produced by the fracture of the ionic bond between SLS and CS, at the same time, the static electricity between SLS and CS disappears.
The reasons of the reduction of the melting peak of SLS-CS at 75 °C and the appearance of decomposition peak at 249.6 °C was likely to be produced by the fracture of the ionic bond between SLS and CS, at the same time, the static electricity between SLS and CS disappears.
Online since: December 2007
Authors: J.L. Song, Guang Jun Chen
And experiments are required repeatedly to obtain the
specific features and data of the process, which is time-consuming, energy-consuming, low
efficiency, and lack of foresight.
The quality of the work by vibratory metal cutting is predicted with the reduction of expectedly trial-number, and with the optimal cutting engagements and structural geometries of the cutting tool.
The quality of the work by vibratory metal cutting is predicted with the reduction of expectedly trial-number, and with the optimal cutting engagements and structural geometries of the cutting tool.
Online since: January 2009
Authors: Akshey Sehgal, Jeffrey Klatt, Hsin Hsiung Huang, Jamal Ramdani, Craig Printy, Scott Ruby, Todd Thibeault
Constructing Pourbaix and speciation diagrams, to reproduce the
conditions in the 5:1 BOE and 100:1 HF bath, was difficult because of the limited thermodynamic data on the Silicomolybdate species and had to be extracted from other publications; that effort will
be the focus of another publication [4].
This led to a 3x reduction in the HF dip time bringing the HF process time in line with other production recipes.
This led to a 3x reduction in the HF dip time bringing the HF process time in line with other production recipes.
Online since: January 2007
Authors: B.K. Singh, Ho Jin Ryu
The optimized values of temperature and duration of H2 (100 cc/min) treatment given
for catalyst formation (data not given here) were 600°C and 60 minutes, respectively, which
resulted in higher yield of CNFs using acetylene as carbon source and Co-Ni as catalyst over
MgO.
(A) XRD pattern of MgONi0.25Co0.25 after H2 reduction.
(A) XRD pattern of MgONi0.25Co0.25 after H2 reduction.
Online since: October 2007
Authors: Jing Zhang, Ru Lin Zuo, Fu Sheng Pan
This risks the weight reduction advantage of magnesium alloy.
Taking the diffusion of element Al as an example, since the interdiffusion coefficient D ~ for Mg-Al alloy can be estimated from the data provided by Moreau et al. [5] as ) /135 exp( 1039.3 ~ 2 4 TR molkJ s m D • − •×= − (1) where R is the gas constant, T is temperature in K, D ~ equals s m216 1046.5 − × at 325°C.
Taking the diffusion of element Al as an example, since the interdiffusion coefficient D ~ for Mg-Al alloy can be estimated from the data provided by Moreau et al. [5] as ) /135 exp( 1039.3 ~ 2 4 TR molkJ s m D • − •×= − (1) where R is the gas constant, T is temperature in K, D ~ equals s m216 1046.5 − × at 325°C.
Online since: August 2012
Authors: Sheng Xian Wei, Zhong Yu Zhang, Xiao Feng Zhou, Shu Fen Tao
Relatively close spacing may be considered, and it is significant to determine the shadow caused reduction in net solar radiation on the collector arrays.
Modelling daily topographic solar radiation without site-specific hourly radiation data.
Modelling daily topographic solar radiation without site-specific hourly radiation data.
Online since: January 2005
Authors: Lei Zheng, Q. Deng, Ting Dong Xu
The grain boundary segregation data were presented in terms of normalized
peak-to peak heights.5
Auger peak height ratio curve in Fig.1 shows that there is an appreciable increase in the
grain-boundary concentration of sulfur on the application of tensile stress 35 kg/mm
2
for the first 3
h and the concentration reaches its maximum Cb(σ=σ) when stress aging for 3 h .
In addition, Kluge concluded that the large reduction in C44 is a generic phenomenon in high-angle grain boundary simulations. 6 The experimentally determined grain-boundary elastic modulus Egb should actually be an apparent value which may be considered as being composed of the contributions of C11, C12, C13, C33, C66 and C44.
In addition, Kluge concluded that the large reduction in C44 is a generic phenomenon in high-angle grain boundary simulations. 6 The experimentally determined grain-boundary elastic modulus Egb should actually be an apparent value which may be considered as being composed of the contributions of C11, C12, C13, C33, C66 and C44.
Online since: March 2010
Authors: Yan Wang, Feng Gao
This causes a sudden reduction in the temperature allowing the circulating
dielectric fluid to implore the plasma channel and flush the molten material from the pole surfaces in
the form of microscopic debris.
The data on material properties required for the numerical calculations are collected after extensive search through information of literatures and handbooks.
The data on material properties required for the numerical calculations are collected after extensive search through information of literatures and handbooks.
Online since: March 2004
Authors: Jai Sung Lee, H.Y. Nam, S.K. Kwon, Young Soo Kang
Experimental
The �-Fe-Ni nanoalloy powder in the form of agglomerate consisting of 40 nm grain size was
fabricated by hydrogen reduction of Fe2O3-NiO powder at 600
o
C for 1h.
In order to check this factor, the shrinkage anisotropy, defined as a ratio of dimensional change in diameter and height, (�D/D0)/(� H/H0), was determined from the shrinkage data [6,7].
In order to check this factor, the shrinkage anisotropy, defined as a ratio of dimensional change in diameter and height, (�D/D0)/(� H/H0), was determined from the shrinkage data [6,7].