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Online since: June 2010
Authors: Ya Peng Wu, Heng Wei Deng, Hong Qiang, Min Ji, Yu You Li, Yong Zhi Chi
A sequential procedure of collecting data, estimating polynomials, and checking the adequacy of the model was used.
Minitab 15 (Minitab Inc., USA) was used to establish and to test complex polynomials to model the data.
To find the maximum solubilization degree of the sludge, quadratic equation was tested to model the data obtained from the trials in Table 2.
When the data analyzed using the model, stepwise regression using the forward method was used when alpha-to-enter is 0.1.
Comparison of semi-continuous single-staged MAD Table 3 summarizes the steady state data for the processes fed with the raw and pretreated TWAS.
Online since: May 2014
Authors: Yu Lun Chien, Yi Ting Hunag, Chih Hong Huang
The device was secured onto a bamboo pole and data was collected in an interval of 12:00-12:30.
In the 30-second duration, data was collected 15 secondly to form an average value.
It was found that data collected from the center of canopy was similar to that from the vacant land by adding absolute humidity into consideration.
The vacant land was found to have a certain degree of influence on air temperature when data from vegetation canopy was compared (Fig. 2).
Measured data at various check points of a Tree Canopy canopy center canpy edge at north canpy edge at south control group at 3.0m Temperature [°C] 30.87 31.8 33.63 36.31 Relative Humidity [%] 59.19 56.47 51.8 44.47 Absolute Humidity [kg/kg] 0.0163 0.0164 0.0167 0.0166 Enthalpy [kJ/kg] 73.55 74.77 77.4 79.98 100 % 108.9% %^AWEFwfertert53434rt%5%%% 103.0% 100 % 87.5% %^AWEFwfertert53434rt%5%%% 95.4% 100 % 105.2% %^AWEFwfertert53434rt%5%%% 101.7% (a) (b) (c) Fig. 2.
Online since: June 2015
Authors: B. Vijaya Ramnath, K. Venkatraman, R. Sarvesh, C. Rohit Prasanna
These ratings are employed to reduce the number of the derived design options, and thereby used as input data to a neural network.
Unsupervised NNs usually perform some kind of data compression, such as dimensionality reduction or clustering.
(i) Motor and Gear Reduction.
The input data is presented to the NN and the NN will compute an output value that approximates the desired result.
However, for successful training , large volume of training data is used and computer time consumption is high.
Online since: October 2006
Authors: John W. Palmour
PAE Power Gain Swept CW Data vs Frequency 0 10 20 30 40 50 600.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 Frequency (GHz) PSAT (dBm) and PAE (%) 5 10 15 20 25 Gain (dB) PAE Power Gain PAE Power Gain Swept CW Data vs Frequency 0 10 20 30 40 50 600.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 Frequency (GHz) PSAT (dBm) and PAE (%) 5 10 15 20 25 Gain (dB) Fig. 1.
WiMax is designed to allow much longer range wireless internet access than the currently used WiFi standard (IEEE 802.11), extending the range from 300 feet for WiFi to as much as 50 miles for WiMax, and with double the data rates (100 Mbps).
The result is a PFC front end with a 38% reduction in volume, and a 44% reduction in weight.
A 33% reduction in power loss can be observed for the SiC FWD circuit for this 3 HP drive.
Alex Lidow, CEO of International Rectifier, for providing data on global power usage.
Online since: September 2011
Authors: Janis Varna
Experimental data for multiple cracking are analyzed showing that linear approximation of crack density versus applied strain may have sufficient accuracy.
The properties reduction with increasing crack density is linear.
According to Fig. 2 the shear modulus reduction slope is identical for CF/EP and GF/EP composites.
Fig 3. presents experimental data on cracking in CF/EP cross ply laminates.
The effective stiffness reduction in (0/903)s laminate, see Fig. 4, is much faster even if the crack density is lower.
Online since: June 2020
Authors: P.L Verma, Sanjay Jain, Shubham Madke
Quality control tools are the means for Collecting data, analysing data, identifying root causes and obtaining the results.
It helps to categorize data.
Histogram is graphical representation of numeric data used to shows how often each different value in a set of data occurs.
Histogram is used to determine shape of data set.
Histogram works best when the amount of data is less but when there is huge data we go for Pareto chart as Pareto chart also arrange data in descending order.
Online since: January 2017
Authors: Gui Qiang Li, Yong Gui Zhang, Chun Yong Yang, Yang Wang, Hao Chun Yan
The results show that coconut shell carbon has the best effect for reduction radon exhalation rates of concrete, fruit shell carbon comes second.
All the experimental operation processes were carried out under the operating rules and operation guide book to make the experimental data accurate and reliable.
The data of mix proportion with coconut shell-based actived carbons was listed in Table 4, and the data of mix proportion with coal-based actived carbons was listed in Table 5.
Fig.1 Compressive strength of concrete with various mix proportion of actived carbon Table 4 Data of mix proportion with coconut shell-based actived carbons No.
Meanwhile, the slump of concrete could be controlled by addition of water reduction agent as far as it did not bleed
Online since: June 2009
Authors: Wiesław M. Ostachowicz, Marek Krawczuk, Maciej Radzieński
However, using additional reference data may improve effectiveness.
Last operation in data preprocessing was extrapolating the signal by 5 points on each side.
Example of mode shape before and after data preprocessing is shown in Fig.4.
Mode shape comparison for raw and preprocessed data.
Damage index of pre-processed and raw data comparison.
Online since: May 2012
Authors: Wen Xue Gao, Bing Hui Hou, Peng Fei Xiao, Ning Ning Chen
Slope instability is the most common geological hazard, but from existing data analysis people in this work, put more concentrate in slope stability and long-term safety problems, in the slope engineering after rock excavation caused by unloading rock, Ignore influence of the hydrodynamic load to cut slope stability during blasting excavation construction stage, dynamic load’s influence to cutting slope stability, so there are a lot of cutting slope disasters.
Experience assessment method, mainly starts with the engineering experience and the measured data, through the actual situation of construction to measure and the velocity, acceleration, stress the data, and evaluate stability.
Peak particle vibration velocity judgment is convenient, but different topography and geology condition, blasting vibration propagation law and so on each have differences, so a uniform criteria to judge all the safety of the project is irrelevancy Based on a large number of engineering practices, the enough blasting vibration test site and monitoring data, Reference other similar engineering to evaluate a project peak particle vibration velocity safety standards, which puts very high demand for tester.
Based on the finite element strength reduction of slope stability analysis of the basic principle is that Slope strength parameters Sticky gathered force c and tanφ (φ is internal friction angle) are divided by a reduction coefficient F, get a set of new strength parameter values c and tanφ.
Finite element strength reduction related problems research and engineering application[D].
Online since: April 2021
Authors: Anton A. Gnidenko, Evgeny Alexandrovich Kirichenko, Pavel G. Chigrin
According to XRD data (Figure 1a), the phase composition of the powder is represented only by perovskite LaFeO3 (ASTM: 37-1493).
The results obtained are in good agreement with similar data for other perovskites [12-14].
According to temperature programmed reduction (TPR) studies (Figure 2b, curve 2), the process of YFeO3 reduction with carbon proceeds from 850 °С, which significantly exceeds the temperature of carbon oxidation process completion.
In the case of LaFeO3 (Figure 2b, curve 1), the reduction process begins at 1100 °С.
The obtained data indicates that, for the perovskites under consideration, the catalytic oxidation of carbon is not associated with the reduction of the catalyst.
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