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Online since: May 2015
Authors: Stanislav Němeček, Jan Kašpar
Introduction
The greatest benefit of using high-strength CP (complex-phase) steels is the reduction in the weight of engineering parts, their prescribed strength is maintained.
However, little data is available on dynamic properties of laser welds which substantially differ from conventional fusion welds in terms of both geometry and structure.
Besides, the scarce data available are dependent on the laser type, beam diameter and quality and other parameters.
Fig. 6 Tension test plot Table 3 Tension test data Specimen Temp.
However, little data is available on dynamic properties of laser welds which substantially differ from conventional fusion welds in terms of both geometry and structure.
Besides, the scarce data available are dependent on the laser type, beam diameter and quality and other parameters.
Fig. 6 Tension test plot Table 3 Tension test data Specimen Temp.
Online since: September 2013
Authors: Si Ying Wang
Reducing the pump speed can reduce flow rate proportionately; Pressure declined even more rapidly than flow; the maximum reduction is shaft power, and specific data can be seen in the table below.
The energy efficient data of fans after the reform is as following, and exhaust fans generally run between 40-45HZ.
Table 2 Energy efficient data of fans after the reform Type Air quantity [m3/h] Pressure head [Pa] Power [KW] Energy saving rate [%] Running device Day power saving rate [KWH] Annual saving rate [KWH] Fan 1 52903 2992 55 17.1 3 677.16 280013.4 Fan 2 52903 2992 55 17.1 1 255.72 93337.8 Fan 3 20971 2856 30 17.1 1 123.12 44938.8 Total annual energy saving: 420000 KWH On the one hand, after using frequency converter, air flow can be controlled by adjusting the inverter output frequency instead of the valves, which has features of easy operation and intelligence.
The energy efficient data of fans after the reform is as following, and exhaust fans generally run between 40-45HZ.
Table 2 Energy efficient data of fans after the reform Type Air quantity [m3/h] Pressure head [Pa] Power [KW] Energy saving rate [%] Running device Day power saving rate [KWH] Annual saving rate [KWH] Fan 1 52903 2992 55 17.1 3 677.16 280013.4 Fan 2 52903 2992 55 17.1 1 255.72 93337.8 Fan 3 20971 2856 30 17.1 1 123.12 44938.8 Total annual energy saving: 420000 KWH On the one hand, after using frequency converter, air flow can be controlled by adjusting the inverter output frequency instead of the valves, which has features of easy operation and intelligence.
Online since: April 2015
Authors: Vladimir I. Andreev
Table 1 Load values provided by a Fourier seriesin the middle section of the cylinder (=0.1)
N
8
16
24
32
40
64
96
0.807
1.155
1.128
0.965
0.9037
1.047
1.036
From the data shown in Table 1 we conclude that the convergence of series is non-monotonic, and slow.
This is confirmed by the data presented in Tab.2 for a homogeneous cylinder [3].
Table 3 Comparison of analytical and numerical calculations homogeneous cylinder Analytical solution 0.2×10-5 -0.515 0.534 -0.936 -0.932 -1.054 Numerical solution 0.005 -0.517 0.558 -0.906 -0.940 -1.094 Tab.3 shows the results of calculation of stresses in a homogeneous cylinder using analytical and numerical methods for the following initial data: .
A marked reduction in stress near the inner surface of the cylinder with an increasing and their increasing in the outer surface, that is in qualitative agreement with obtained previous results for one-dimensional problems.
This is confirmed by the data presented in Tab.2 for a homogeneous cylinder [3].
Table 3 Comparison of analytical and numerical calculations homogeneous cylinder Analytical solution 0.2×10-5 -0.515 0.534 -0.936 -0.932 -1.054 Numerical solution 0.005 -0.517 0.558 -0.906 -0.940 -1.094 Tab.3 shows the results of calculation of stresses in a homogeneous cylinder using analytical and numerical methods for the following initial data: .
A marked reduction in stress near the inner surface of the cylinder with an increasing and their increasing in the outer surface, that is in qualitative agreement with obtained previous results for one-dimensional problems.
Online since: January 2014
Authors: Yeong Sant Kuo
It is well known that high thermal gradient will be favorable for a reduction of porosity content in aluminum alloys castings, but high solidus velocity or slow cooling rate will increase porosity.
All the thermocouples were connected to a data acquisition unit to record the variation of temperature with time.
And all the data points for 1cm and 2 cm thick plate castings in this figure are split into two bands.
All the data points (1cm and 2 cm plate castings) are mixed and not the same as Fig.4 split into two bands clearly.
All the thermocouples were connected to a data acquisition unit to record the variation of temperature with time.
And all the data points for 1cm and 2 cm thick plate castings in this figure are split into two bands.
All the data points (1cm and 2 cm plate castings) are mixed and not the same as Fig.4 split into two bands clearly.
Online since: December 2014
Authors: Li Li Zhang, Lan Zhou, Shi Gang Su
Fig.3 Macrokinetic determination of Michaelis-Menten kinetic constants of CB
AWCD and Real-time PCR The set of experiments showed test well dye reduction was non-linear in microplates inoculated with the BTF samples, and the shape of the color development curve was generally sigmoidal (Fig. 4A).
Test well OD values over time suggested a kinetic model based on the density-dependent logistic growth equation of the general formto describe a population of individuals.The solid line is a plot of the equation fit to the absorbance data.
Kinetic model a, b and c parameter data for the fit equation are presentedalong with the R2 value of the fit to the absorbance data.
Test well OD values over time suggested a kinetic model based on the density-dependent logistic growth equation of the general formto describe a population of individuals.The solid line is a plot of the equation fit to the absorbance data.
Kinetic model a, b and c parameter data for the fit equation are presentedalong with the R2 value of the fit to the absorbance data.
Online since: August 2014
Authors: Jang Youl You, Young Moon Kim, Ki Pyo You
Numerical simulation of fluctuating across-wind load
References Fluctuating across-wind load treated as a random process of stationary Gaussian white noise can be simulated numerically in time domain using across-wind load power spectral density data.
Kareem used a 5sq in (127mm2) square 20-in (508mm2) tall prism model and eight pressure transducers, integrating simultaneously monitored eight channels of pressure data on a building model surface, so obtained the normalized across-wind load spectra of the across-wind forcing function on a square cross-section tall building exposed to urban and suburban atmospheric flow condition, which is shown below Figure 2.
A tall building's height H=180m, width B=30m, depth D=30m, natural frequency f1=0.2Hz, critical damping ratio=0.01, air density=0.973 kg/m3, hourly mean wind speed at the building height Vh=24.4m/s, the reduced velocity Vh/fB, corresponding to the mean hourly wind speed=4.0, generalized mass of a fundamental mode shape m1=10,942,500kg, Sf(fn)=3.149*108 and etc. and the other data were appeared in [7].
The rms value of estimated reduced response is 0.0016m, which is about 65 % reduction of the response without AMD.
Kareem used a 5sq in (127mm2) square 20-in (508mm2) tall prism model and eight pressure transducers, integrating simultaneously monitored eight channels of pressure data on a building model surface, so obtained the normalized across-wind load spectra of the across-wind forcing function on a square cross-section tall building exposed to urban and suburban atmospheric flow condition, which is shown below Figure 2.
A tall building's height H=180m, width B=30m, depth D=30m, natural frequency f1=0.2Hz, critical damping ratio=0.01, air density=0.973 kg/m3, hourly mean wind speed at the building height Vh=24.4m/s, the reduced velocity Vh/fB, corresponding to the mean hourly wind speed=4.0, generalized mass of a fundamental mode shape m1=10,942,500kg, Sf(fn)=3.149*108 and etc. and the other data were appeared in [7].
The rms value of estimated reduced response is 0.0016m, which is about 65 % reduction of the response without AMD.
Online since: February 2014
Authors: Lin Liu, Guo Zhuang Liang
After positioning, on the experimental design of the stimulus.
2 .2 Data Processing
After getting to the EEG induced by TMS, data processing usually include artifact removal and filter processing.
Research on ERP signal, you also need to overlay the EEG average.Artifact removal in accordance with the artifacts from the subtraction and principal component analysis to the removal, in particular, needs attention is in TMS-EEG auditory evoked potentials (P30andP55), the sound of the TMS stimulation to be taken into account, not simply in accordance with the knowledge to the analysis of auditory evoked.In practice, to keep trying to hear the sound, noise reduction, TMS can put headphones on subjects in the experiments.
Strictly speaking, this belongs to the field of experimental control, not data processing. 2.3 Analysis Methods Analysis of the TMS-EEG, from the perspective of existing literatures, Includes analysis on turbulence characteristics of spontaneous EEG and event -Related EEG analysis.Most using power spectral analysis,analysis of Time-Frequency Analysis,mapping,and ERP component analysis,and so on.
Research on ERP signal, you also need to overlay the EEG average.Artifact removal in accordance with the artifacts from the subtraction and principal component analysis to the removal, in particular, needs attention is in TMS-EEG auditory evoked potentials (P30andP55), the sound of the TMS stimulation to be taken into account, not simply in accordance with the knowledge to the analysis of auditory evoked.In practice, to keep trying to hear the sound, noise reduction, TMS can put headphones on subjects in the experiments.
Strictly speaking, this belongs to the field of experimental control, not data processing. 2.3 Analysis Methods Analysis of the TMS-EEG, from the perspective of existing literatures, Includes analysis on turbulence characteristics of spontaneous EEG and event -Related EEG analysis.Most using power spectral analysis,analysis of Time-Frequency Analysis,mapping,and ERP component analysis,and so on.
Online since: March 2013
Authors: Yung Cheng Wang, Chih Chin Ko, Tien Shu Chang
Furthermore,
reduction of effective modulus can be measured for samples containing macroscale cracks.
The fitting parameters are ω0, denoting the resonant frequency of interest, and tan δ to construct this function with an experimental data [5].
In this work, the finite element method is adopted to obtain the shear modulus by tuning finite element method to give the torsion resonant frequency consistent with experimental data.
Only one data point for the shear modulus is shown for the polycrystalline aluminum sample at around 1640 Hz.
The fitting parameters are ω0, denoting the resonant frequency of interest, and tan δ to construct this function with an experimental data [5].
In this work, the finite element method is adopted to obtain the shear modulus by tuning finite element method to give the torsion resonant frequency consistent with experimental data.
Only one data point for the shear modulus is shown for the polycrystalline aluminum sample at around 1640 Hz.
Online since: March 2015
Authors: Xiu Zhi Li, Zhao Liu, Song Min Jia
As pointed out by Quan Pan [3] that, compared with single information source, the advantages of multi-sensor information fusion is multi-fold: improvements on the detectability and credibility, extension of the scope of the perception of time and space, and reduction of the dimension of fuzzy reasoning [4], etc.
Accordingly, by using monocular camera, we could derive 2.5D depth data by optical flow based approach.
The experimental platform mainly consists of an ultrasonic sensor ring around the wheelchair, monocular camera, intelligent wheelchair motion controller, data acquisition and expansion modules.
Image data is transferred to embedded computer for further processing.
Accordingly, by using monocular camera, we could derive 2.5D depth data by optical flow based approach.
The experimental platform mainly consists of an ultrasonic sensor ring around the wheelchair, monocular camera, intelligent wheelchair motion controller, data acquisition and expansion modules.
Image data is transferred to embedded computer for further processing.
Online since: August 2008
Authors: Bruno D. Soares, Carla Eponina Hori, Carlos E.A. Batista, Humberto Molinar Henrique
• BET Surface Area: Adsorption of nitrogen was performed on samples in order to evaluate the
specific surface area by physical sorption isotherm data according to the method of BrunauerEmmet-Teller
(BET).
The TGA thermogram allows to characterize and to quantify the reactions in the solid state based on mass reduction of the sample due to release of CO2
Analyzing the diffractograms (Fig. 3) and comparing with the JCPDS data (Joint Committee for Powder Diffraction Standards), the crystal phase predominant on the samples was calcite on the rhombohedral form.
[7] JCPDS data: index numbers 01 082 1690, 01 072 1651, 01 071 2396 and 01 072 0506.
The TGA thermogram allows to characterize and to quantify the reactions in the solid state based on mass reduction of the sample due to release of CO2
Analyzing the diffractograms (Fig. 3) and comparing with the JCPDS data (Joint Committee for Powder Diffraction Standards), the crystal phase predominant on the samples was calcite on the rhombohedral form.
[7] JCPDS data: index numbers 01 082 1690, 01 072 1651, 01 071 2396 and 01 072 0506.