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Online since: June 2006
Authors: Vladas Vekteris
A lubricating liquid film under high-speed shaping is continuously destroyed by
abrasive grains of the grinding wheel, which causes disruption of the continuity and stability of the
flow; stochastic currents are formed which flow from the higher pressure area towards the lower
pressure area.
In such cases, a great number of hydrodynamic equations are to be solved and the results obtained have to be averaged by statistical methods [3].
In such cases, a great number of hydrodynamic equations are to be solved and the results obtained have to be averaged by statistical methods [3].
Online since: January 2004
Authors: Radosław Zaleski, Anna Borowka
The
number of cracks rises (relative I4 growth of a few percent is similar for all samples), and then
the fragments of the template leave the silica pore structure.
The grain sizes of the investigated materials are small (below 0.1 µm) comparing to the path of o-Ps migration which is of 1 µm or more.
The grain sizes of the investigated materials are small (below 0.1 µm) comparing to the path of o-Ps migration which is of 1 µm or more.
Online since: October 2006
Authors: Byung Min Kim, P.K. Seo, C.G. Kang
This is consistent with the relationship of
B=µNI, where B is magnetic induction, µ is a coefficient, N is the number of turns of the coil, and I is
the current.
However, in order to avoid the influence of grain size being masked by the effect of a large gate, a small gate was used in the current experiment, as shown in Fig. 1.
However, in order to avoid the influence of grain size being masked by the effect of a large gate, a small gate was used in the current experiment, as shown in Fig. 1.
Online since: July 2011
Authors: Gen Sheng Li, Shang Yu Yang, Xiu Juan Yang, Xiang Zhen Yan
For a zero-mean stationary Gaussian random response process, the power reliability[9,10] based on the first excursion failure criterion can be expressed as Eq.2 and Eq.3
Unilateral boundary model
(2)
Bilateral boundary model
(3)
Deep & ultra-deep well reliability for drill string system
The drill string is composed of a number of drill pipe, drill collars and drilling tools.
There are a lot of pores, micro-cracks and grain boundaries in carbonate rock which reduced the mechanical strength and stability.
There are a lot of pores, micro-cracks and grain boundaries in carbonate rock which reduced the mechanical strength and stability.
Online since: August 2011
Authors: Bin Xu, Cai Gao, Xiao Hong Fan
At 2min, since the sufficient diffusion of carbon atoms, a number of well-distributed cementites appear showing almost entirely strips, and getting longer and thicker.
However some smaller diamond crystal grains can be found on the interface between the catalyst and graphite.
However some smaller diamond crystal grains can be found on the interface between the catalyst and graphite.
Online since: September 2006
Authors: Yuki Itoh, Kenichi Wakisaka, Masashi Satoh, Shinzo Yoshikado
The number of heating cycles at temperatures up to 1000°C was 17.
Mo-rich grains are formed on the thin-film before heating due to the extraction of Mo atoms from the thin-film and Mo sites in the thin-film are substituted by Pt atoms.
Mo-rich grains are formed on the thin-film before heating due to the extraction of Mo atoms from the thin-film and Mo sites in the thin-film are substituted by Pt atoms.
Online since: February 2015
Authors: Irina Kurzina, Ivan S. Bondarchuk, Francisco J. Cadete Santos Aires, Grigory V. Mamontov
Recently many efforts have been devoted to fabricate Pd–Ag nanostructures with well-defined morphology because the grain size and morphology have a great impact on the chemical and physical properties of metal nanomaterials [2].
Ceria has been claimed to be a strong promoter of structural and electronic properties of catalysts both in the automotive pollution control and for a number of industrial processes, such as purification and reforming of CH4, steam reforming of CO, CO2, methanol, and diethyl ether, as well as PROX reaction.
Ceria has been claimed to be a strong promoter of structural and electronic properties of catalysts both in the automotive pollution control and for a number of industrial processes, such as purification and reforming of CH4, steam reforming of CO, CO2, methanol, and diethyl ether, as well as PROX reaction.
Online since: February 2014
Authors: Fei Meng, Bao Yan Shan
Economic development level indicators which we choose are the local fiscal budget revenue, local fiscal budget expenditure, financial institutions at the end of the balance, the balance of urban and rural residents savings, at the end of the financial institutions the loan balance, total grain output, industrial enterprises above designated size output value, export volume, the number of ordinary high school full-time teachers, the net income of the farmers, 10 indicators in all.
Online since: June 2014
Authors: Tong Zhao, Liang Zou, Li Zhang, Qing Quan Li, Pan Ting Dong, Meng Qi Liu
Based on the experimental data of single-axis measurements [10], the following power approximation was found to accurately characterize the amplitudes of the harmonics:
(1)
where εx is the magnetostriction in the L-direction, εy is the magnetostriction in C-direction, kεx is a proportionality factor in the L-direction, kεy is a proportionality factor in the C-direction, Bx is the magnetic flux density in the L-direction, and By is the magnetic flux density in the C-direction, nx is the power of the approximation for the L-direction, ny is the power of the approximation for the C-direction, i and j are natural numbers.
Influences of Isotropic and Anisotropic Magnetostriction on Three-Phase Transformer with Highly Grain-Oriented Electrical Steel Sheet.
Influences of Isotropic and Anisotropic Magnetostriction on Three-Phase Transformer with Highly Grain-Oriented Electrical Steel Sheet.