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Online since: April 2020
Authors: Ekrar Winata, Ardi Wiranata
Through data acquisition (Hantek DSO3000A) process, the data is extracted to frequency domain commonly applies a digital signal processing technic which is called a Fast Fourier Transform (FFT) [3].
FFT was applied to the DSP data derived from the impact-echo data to obtain the maximum amplitude of the signal.
Data recording from these three accelerometers was gathered by a data acquisition (Hantek DSO3000A) and transferred to the computer.
In this study, FFT analysis was combined with the magnitude-squared coherence method in order to get quantitative data.
As the reference data, the result from the vibration measurement from P1 is presented in Fig. 1.
Online since: February 2010
Authors: Jarle Hjelen, Robert A. Schwarzer
This extends the time required to process each data point, subsequently resulting in longer scan times.
Furthermore, a Hough transformation may already bias experimental data.
EBSD data collection adds significant overhead of typically 1 hour per slice to the time required to lay open and analyze a section slice, because of the relatively slow speed of online acquisition of orientation data with conventional systems [4].
Therefore, automated EBSD data need to be treated with caution in materials with high rates of misindexing and/or nonindexing [5].
The patterns are stored in raw bitmap format on the hard disk after binning on the sensor chip rather than as reduced data ("Hough" peaks).
Online since: July 2011
Authors: Michel Vilasi, Stéphane Mathieu, Stephane Knittel
This effect is not attributed to a better efficiency of the oxide scales but rather to the reduction of the niobium solid solution fraction with tin additions.
The crystal structure of each compound was identified by matching the characteristic XRD peaks against JCPDS data.
The addition of tin has also several effects on the compositions of the MASC constitutive phases: - First, EPMA data (Figure 2) shows that tin additions modify the solubility of the other elements within the (Nb,Ti)ss.
Online since: March 2011
Authors: Hugo Sol, Paul van Houtte, Sam Coppieters, Pascal Lava, Dimitri Debruyne
Such procedure may yield very different results depending on the hardening law fitted to the experimental data.
Since the pre-necking data is readily available from a standard tensile test, the usual way to estimate the post-necking hardening behaviour is by fitting a hardening law to the experimental data (which is available before the point of maximum uniform elongation).
On the left side of this figure the results are shown for the material data obtained by the extrapolation method (EM).
Unlike the material behaviour obtained through inverse modelling and the PNTE, the hardening laws are not forced to match experimental data at higher plastic strains since they are fitted to the available pre-necking data.
The most obvious discrepancies with the experimental data are situated in the ring groove of the die and the interlock region.
Online since: May 2012
Authors: Suwimon Kanchanasuta, Nipon Pisutpaisal
Kinetic data, the patterns of metabolites, which directly resulted in fermentative type and the direction of fermentative process including with carbon mass balance were examined.
Although the new conditions of the second feed were slightly adjusted to optimal conditions of hydrogen production process such as increasing of pH from 4.26 to 5.15 and reduction of undissociated acid accumulated in liquid products from 68 mM to 11 mM.
Increase of pH resulted in the reduction of the undissociated acid accumulated in the broth.
Online since: September 2011
Authors: Quan Mei Gong, Sheng Rong Lu, Yu Jia
For the calculation of a plane problem, piles are simplified as piling wall based on the principle of stiffness equivalence, and the reduction method can be seen in reference [11].
The interaction among pile foundation, segment lining and soil can be simulated by setting Goodman interface unit on the surface of the piles and tunnels, integrated with choosing proper virtual thickness factors and strength reduction factors.
Referring to the achievements and experience of the field-measurement data analysis which is provided by the built subway tunnels in soft soil in China, ground loss should be generally controlled within the range of 0.3%~1.0% [13] when a shield tunnel passes through buildings or structures.
Online since: October 2011
Authors: Xi Bin Dong, Hao Ji
Excel 2003 and SPSS10.0 were employed to analyze the statistical data.
PH value on sunny slope is obviously higher than shady slope, and with the reduction of forest gap area increasing with the trend.
The study of Guo and Gifford [9] found that methods of changing land usage would cause soil carbon reduction.
Online since: January 2012
Authors: Raman Sharma, Anup Kumar, Pawan Heera, P. B Baraman
These materials have their application in memory switching devices and in reversible phase change optical data storage.
This increase in the optical band gap with Ag contents may be due to the decrease in density of defect states, increase in the grain size and reduction in the disorder that results in the reduction of tailing bonds [24, 25].
Online since: February 2013
Authors: Ryszard Kłos
The data is archived on any computer available in the measurement network of the DGKN-120 complex.
The angle and Reynolds’ number are dimensionless variables and so they can be included in an unknown function of mechanical dimensionless quantities connected with movement in a liquid , which allows further reduction of the number of variables to five.
By replacing the variables with general dimensions constituting basic dimensions of the applied physical unit: , , , , where: mass dimension, length dimension, time dimension, the criteria for the model dimension calculation could be written as: (1) where: numerical coefficients, mass dimension, length dimension, time dimension, thus: Taking into consideration the solution of the equation Eq. 1 for modelling process a given problem situation, it is possible to write an approximate mathematical model in the algebraic form of the following product: (2) where: resultant force, a replacement surface equivalent to the diver’s cross-section producing frontal resistance during his movement, velocity, diver’s silhouette angle, water density, Reynolds’ number After reduction and rearranging
Online since: January 2014
Authors: Jun Chen, Jing Heng Zheng, Kai Xie
,the mean value of Gbi of main building in j-th region ,as the reduction coefficient of the non-main buildings in j-th region.
(6) (7) Where Gbj denotes the reduction coefficient of the non-main buildings in j-th region; h denotes the number of main buildings in j-th region; Pj denotes the total parking demand of non-main building in j-th region; Pjk denotes the normal parking demand k-th non-main building; Rjk denotes parking ratio of the k-th non-main building; Ljk denotes architectural scale of k-th non-main building; z denotes the number of non-main buildings in j-th region.
Basic data for model is obtained from survey, including Basic facilities survey, parking demand survey, and questionnaire survey.
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