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Online since: September 2013
Authors: Passawron Krongtanin, Anurak Petiraksakul
The replacement of homogeneous catalysts by heterogeneous catalysts would have various advantages such as the easy catalyst separation from the reaction mixture, product purification, and the reduction of environment pollutants and longer catalyst lifetimes [4,5,6,7].
Multi-regression analysis was performed as the data to obtain a quadratic response surface model (Table 2) and second order equation obtained prediction values of residual activity of kinematic viscosity as shown in Eq. (2).
Online since: September 2011
Authors: Li Gang Yao, Zheng Lin
Introduction Nutation drive with internal meshing spiral bevel gears can achieve a high reduction ratio within a compact space [1].
The data values of tooth surface in MATLAB would be inducted into Solidworks system.
Online since: December 2010
Authors: Fei Zhao, Peng Feng, Wen Juan Lou, Chao He Chen
Load, deflection and strain measurements were recorded by means of an automatic data acquisition system.
It could be seen that at initial loading stage, the load with deflection response at load point was linear and elastic, then the behavior became nonlinear after concrete cracked at a certain load, and the curves showed a reduction in stiffness.
Online since: April 2005
Authors: Ismail Kashkoush, R. Novak, Lewis Liu, Nick Yialamas
On the other hand, wafer surface cleanings play an increasingly important role in the manufacturing with further reduction of the dimensions of the microelectronic devices into the low nm scale.
Parameter Target Run Number aKROS' Data Si Consumption Si Consumption 1 4.9 Å Consumed Amorphous Poly < 8 Å 4.2 Å Consumed Wafers 2 4.6 Å Consumed 5.5 Å Consumed SiO2 Consumption Si Consumption 1 0.8 Å Consumed Thermal Oxide < 1 Å 0.8 Å Consumed Wafers 2 1.1 Å Consumed 1.3 Å Consumed SiO2 Re-growth SiO2 Re-growth 1 4.1 Å Re-growth Prime Si Wafers < 8 Å 4.0 Å Re-growth 2 4.9 Å Re-growth 3.9 Å Re-growth Figure 3: The stability of SiO2 film etching in dilute HF solution.
Online since: April 2007
Authors: Hong Quan Bao, Xing Dong Zhang, Li Wang, Hui Feng Zhao, Xin Gang Yu, Wen Yue Bi
Besides, although the starting solution contained only Ag +, it was expected to transform to Ag during the heat treatment of the film, since this reduction is an endothermic process.
It was found in Fig. 4 that the films consist of silver crystal with partial [111] orientation, because the diffraction intensity of (111) is about 2.5-5 times larger than that of (200) and (220), and according to ASTM data, the ratio of the diffraction intensities of (111) to (200) is equally about 1.4.
Online since: August 2013
Authors: Sallehuddin Mohamed Haris, Nik Abdullah Nik Mohamed, Reza Alebrahim, Salvinder Singh Karam Singh
All results attained in this literature are according to numerical data [5] as follow: L=50m I=0.0417m4 E=2.1× 1011Nm-2 m=3930kgm-1 mp=39300kg A=0.5m2 h=1m g=9.81ms-2 ab=0.5 υ=40ms-1 l=3.125 w=0.5m Fig. 1.
While the number of cracks goes up, maximum deflection of midpoint increase which is because of reduction in beam’s stiffness.
Online since: September 2013
Authors: Yi Ping Chen, Dong Hai Cheng, Zhao Fan, De An Hu
However, the long residence time, severe grain growth of diffusion bonding can lead to properties reduction of mechanical parts[2].
By selecting 25 point stress and strain, it is found in the same strain conditions, the simulation results with the actual results of the stress maximum difference 3.89MPa, the smallest difference 0.22MPa, mainly by the following reasons: 1, the simulation of the physical and mechanical properties of materials parameters data lack of preparation; 2, meshing precision effects: the simulation model selected by modeling a relatively coarse grid through trials, parameters and loading conditions to understand what results will produce responses in order to clearly understand the structure of the nonlinear behavior of expression.
Online since: December 2014
Authors: Anna Guzanová, Janette Brezinová, Dagmar Draganovská, Jozef Bronček
The corrosion rate depends on the kinetics of both anodic (oxidation) and cathodic (reduction) reactions [5,6].
The corrosion current, icorr, and the Tafel constants ba, and bc can be measured from the experimental data.
Online since: September 2013
Authors: Jian Zhang, Jian Xing Ren, Tian Yu Sun, Qin Yang Wang
SO2 can be removed with a Flue Gas Desulphurization unit and NOx with a Selective Catalytic Reduction unit.
According to current research data, a carbon capture device can reduce the thermal efficiency of the power plant by as much as 10%-14%.
Online since: December 2013
Authors: Wen Guo Huo, Lan Rong Cai, Shao Juan, Feng Yang
Much effort has been devoted to the collection of data on the effects of machining parameters on the process outputs [5].
The results of simulation strongly suggested that the application of this internal lubrication structure cutting tool technology will lead to substantial cutting temperature reduction.
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