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Online since: October 2012
Authors: Guo Zhu Cheng, Chun Xiao Liu, Ya Ping Zhang
Saturated headway data of nine signalized intersections were observed by video method.
The data of pedetrian’s crossing speed were collected according to pedestrian’s gender and age, which were listed in table 5 and table 6.
Pedestrian’s crossing speed data was observed according to diffrent gender and they were shown as table 5.
Table 5 Pedestrian’s crossing speed data according to different gender Gender Male Femal Average speed Normal pavement(m/s) 1.41 1.36 1.39 Snowy pavement(m/s) 1.16 1.10 1.13 Reduction (%) -17.7 -19.1 -18.4 Icy pavement(m/s) 1.05 1.01 1.03 Reduction (%) -24.1 -25.0 -25.9 Pedestrians of Different Age.
Pedestrian’s crossing speed data was observed according to diffrent age and they were shown as table 6.
Online since: July 2015
Authors: A.K.M. Mohiuddin
Reduction of NO by CO.
The data show lower level of CO oxidation on the rich side of the mixture.
Data are not available to show the real ability of this catalyst system in automotive application.
From the chemical simulation, the chemical kinetics mechanism of the catalytic converter’s catalyst system is modelled and subsequent NO and CO conversion data had been obtained.
NO and CO conversion data against different air to fuel ratio show that rich mixture favours NO reduction but limits CO oxidation.
Online since: May 2014
Authors: Gerhard Hirt, Lorenz Singheiser, Sebastian Stille, Thijs Romans, Tilmann Beck, Julia Pöplau
Drag reduction between 5 and 6% was confirmed through numerical computations by Choi et al. [4].
Fig. 3: Form filling plotted against specific thickness reduction (a) and specific rolling force (b) The calculated simulation data agrees well with that obtained from the experiments.
The dependence between form filling FF and the parameters thickness reduction εh, rolling force Fw and rolling pressure p is investigated by setting the roll gap to different positions simulating different thickness reductions.
Fig. 5 (a) shows form filling plotted against thickness reduction simulated for different materials.
As in the previous chapter, one can state that FF increases with raising thickness reduction.
Online since: September 2024
Authors: Volodymyr Koloskov, Hanna Koloskova, Vitalii Vekshyn, Olexandr Sincheskul
Data from physical and chemical studies are presented, namely microhardness, porosity, thickness, specific surface area, adhesion and thermal stability of the active layer.
According to the literature data [15], aluminum [16] and titanium [17] were chosen as the substrate metal in advance.
According to data from [23], OT4-1 alloy is the most technologically advanced in terms of processing, and is highly resistant to aggressive environments and catalytic poisons in the production of sulfuric and nitric acids.
RAA method was used to obtain more accurate data, that is X-ray attenuation analysis.
Fig. 6 shows the data that characterize the dependence of the porosity of anodic oxide films on titanium OT4-1 plate on the duration of anodic oxidation.
Online since: October 2013
Authors: Alberto Campisano, Lin Mei Nie, Ping Yuu Li
The methodology and a RWH tank system was evaluated applying the daily rainfall data obtained in two met-stations of Blindern in Oslo and Rygge in Fredrikstad, South Norway.
Results show that, using different tank sizes, the system can achieve 26.5%-100% runoff volume and a 15%-100% peak flow reductions.
All these scenarios cover a 30-years period and for each scenario and rainfall data are available with daily resolution.
The methodology was applied to daily rainfall data recorded in cities of Oslo and Fredrikstad, Norway.
Kreutzer, Pilot project- Can damage data from insurance company be used by municipalities for climate prevention?
Online since: July 2014
Authors: Hai Yan Zhao, Lin Hao Huang, Zheng Xi Xie, Gu Sheng Wen
Firstly, this method preprocess original data and the decision table is formed, then attribute reduction and value reduction to delete redundant attributes by Rough Set theory, and finally extract the fault diagnosis decision-making rules. 1 Establishing fault diagnosis decision table based on Rough Set theory (1) Attribute definition In Rough Set theory, in order to better handle data, the data and knowledge we obtained must be formulated.
Because the decision is based on the finite-dimensional discrete data tables, therefore, the data should be normalization processed.
However, because there is a lot of noise in the sample data, some diagnostic rules may only data derived from a small sample, if the sample data is incomplete, the corresponding diagnostic rules will not be reliable.
Coverage is the proportion of data objects which satisfied the antecedent and the consequent.
After normalization, the data was identity to facilitate subsequent processing. 38 groups of failure data was recorded, due to limited space, they are not listed here all, after normalization and attribute reduction, we obtained the decision table as shown in Table 2.
Online since: September 2013
Authors: Xi Wei Peng, Xiang Zheng Li, Qing Bo Geng
Finally test data is transmitted though USB interface to upper computer software based on labview, the software’s functions included data reduction, data analysis, data storage etc.
The hardware circuits consist of data conditioning circuit, data acquisition circuit, data transmission and reception circuit and USB communication circuit.
Data Communication.
There are sensor signal acquisition and display, data save, data query etc.
Fig.6 The data acquisition diagram Fig.7 The data save diagram When the “start” button is pressed, the software gets test data, change data into test signals and display test signals.
Online since: January 2013
Authors: Chang Sheng Zhou, De En, Na Na Wei, Xiao Long Shi, Huang He Wei
As the data collected in the wild are often subjected to the interference of noise, is not conducive to the analysis and interpretation of seismic data, therefore removing noise is the premise of data interpretation.
Various forms of the existence of noise can make useful signal completely submerged in the noise. resulting in signal to noise ratio seriously reduced, which caused much inconvenience to the latter part of the data processing and analysis.
The Fourier transform is noise reduction processing method, in handling the non-stationary signal and transient signal, Fourier transform will ignore transient information.
The results show that the Fourier analysis noise reduction are not good original, especially in the waveform mutations place, the denoising waveform has some distortion.
But wavelet soft threshold denoising waveform is smooth, and it can better reconstruction original waveform, so it is a useful tool of the seismic data processing.
Online since: July 2023
Authors: Nanung Agus Fitriyanto, Lusia Anggraeni Murtikawati, Ragil Adi Prasetyo, Yuny Erwanto
One-way ANOVA was used to analyze the data.
Measurement of NH3 Gas Reduction.
Data analysis.
The data showed that the microbes from fermented tobacco leaves could degrade organic matter during fermentation.
The results were indicated by data on the amount of emission per day of ammonia gas produced by excreta (Fig 5).
Online since: February 2019
Authors: Yeong Maw Hwang, Yung Lin Wang
(14) Using experimental data in Fig. 1 and some above-obtained constants, lnε-ln[sinh(ασ)]and ln[sinh(ασ)]-1/Tcurves can be drawn.
The average value of constant P can be obtained from experimental data with different forming conditions.
Generally, the simulation results are coincident with the experimental data for reductions of 20% and 28%.
Generally, the simulation results are coincident with the experimental data within an error of 20%.
The simulated grain sizes generally agreed with the experimental data.
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