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Online since: October 2015
Authors: Jaimal Singh Khamba, Chandan Deep Singh
It takes a confirmatory rather than an exploratory approach for the data analysis.
Figure 3 Theoretical framework of the SEM_TPM model SCREENING OF THE DATA WITH PRELIMINARY ANALYSES After the data has been collected through the questionnaires, various data examination techniques was applied on the data like test for skewness and kurtosis i.e. normality test, CFA, test for the reliability of the data, so as to check and increase confidence in the data obtained.
SEM analysis requires that the data sample should be multivariate normally distributed.
As there is no method to test the multivariate normality of the sample data using AMOS or SPSS software.
After removing the items from their respective variables, test for reliability of the data is done using Cronbach's Alpha which is a reliability measure of the data for testing internal consistency.
Online since: December 2023
Authors: Marwa F. El Kady, Mohamed G.A. Nassef, Hiroshi Naragino, Ndabezinhle Ngubhe Dube, Abdelrahman Zkria, Hussien Noby
Particle sizes, as calculated by the XRD data for BP, Carbonized banana peels (CBP), carbonized/activated banana peels (CABP), and activated/carbonized (ACBP) were 113.24 nm, 96.56 nm, 86.18 nm, and 93.60 nm respectively.
Friction reduction is necessary to avoid system energy losses and reduce wear on moving parts [5].
The specific surface area (SSA) can be estimated using the crystallite size from XRD data by Eq.3 [18]: SSA=6×103ρDp (3) Where ρ is the density of the particle, and Dp is the crystallite size.
Fig. 4 shows the crystallite size distribution of the prepared activated carbon obtained from the XRD data.
[2] “FAOSTAT.” https://www.fao.org/faostat/en/#data/QCL (accessed Feb. 13, 2023)
Online since: April 2017
Authors: Raghu V. Prakash
Fatigue data, in the form of stress vs. cycles to failure (or) strain vs. cycles to failure (or) fatigue crack growth rate data is used to predict the residual life.
Often the quantity of material available for generating fatigue data is limited, especially, if the material is scooped out of existing component of a power plant.
This has prompted us to develop test procedures to determine the fatigue data of materials from a limited volume of material.
This poses restrictions on fatigue data generation for in-service components.
The force and displacement data was acquired at a data sampling frequency of 20 Hz and it was continuously monitored.
Online since: August 2011
Authors: Fan Zhang, Cheng Wen Tan, Hong Nian Cai
To evaluate the length-to diameter ratio effect on quasi-static compression data, additional compression tests were conducted keeping the diameter constant, but with ratio of 3, 2.5, 1.6 and 1.2.
It was found that length-to-diameter ratio has no effect on the compression data.
The statistical area 4.37 mm2 is chosen for each specimen in order to gain the accurate data of the area fraction of twinned grain and twin lamella.
It is evident that m has a moderate but clear reduction with continued aging time.
Online since: August 2011
Authors: Li Tao Qi
In fact, two distinct logarithmic regimes have been reported for fitting crater depth data in femtosecond laser ablation of sapphire, semiconductors, and metals [8, 10, 11].
The ablation volume of the craters ablated by femtosecond laser pulses was calculated through the data of the AFM images.
The ablation efficiency reduction at high fluences was due to absorption of the laser pulse energy by the surface-induced air plasma and redeposition and resolidification by the strong recoil pressure exerted by the ambient air background, which was proposed by Grigoropoulus et al. from their time-resolved pump-and-probe images [8].
Measured volumes from AFM scanned data in Fig. 2. on different crystallographic facet planes.
Online since: May 2011
Authors: Xiao Feng, Si Dong Wu, Yan Wei Zhao, Khim Chu
Table 1 Input data for ASPEN PLUS Tray number 101 Type of condenser Total Type of reboiler Kettle Reflux ratio [wt %] 12.52 Flowrate of top product [kg/h] 10068 Feed location #41 Top pressure [kPa] 390 Pressure change [kPa] 100 Supercooling temperature of top reflux [°C] 200 In the distillation system, because the physical properties of each component are similar and there are no association phenomena in the vapor phase, the system can thus be expressed by state equations.
The input data for ASPEN PLUS are shown in Table 1.
Comparison between the simulation results and the actual industrial data is given in Table 2, which shows good agreement.
The optimization has resulted in a reduction in the utility requirement.
Online since: October 2011
Authors: César Bedoya, Jorge Orondo
To guarantee the reliability of this tool, all the credits used have indicators that come from official data bases or at least professional recognize.
For the credits in which the commercial information was needed to be used, it is guaranteed its reliability by comparing data from enough reliable commercial references and obtaining the mean value.
If there are no data available it will be assumed as the worst option and will be given the following worst punctuation.
The comparative evaluation method does not give results from the reduction of the environmental impact, although it helps to know easily and quickly the best alternative for each situation, and gives improvement ideas to help to achieve the ideal hypothesis.
Online since: November 2012
Authors: Hui Xu Dong, Na Li, Mei Chen Fan, Yu Wen, Jia Qi Dai
Boiling seawater enters the evaporation chamber through compression release valve .While the reduction of pressure in the evaporation chamber leads to lessen boiling point of seawater.
The experimental data analysis 4.1 The measurement of experiment data (1) Freshwater: Gather fresh water in the tank at regular intervals, measure it in graduated cylinder and take record of the average data
Online since: October 2011
Authors: Jen Jung Hsu, Ming Chang Wu
Such data will be useful in understanding the influence of the controlled parameters and preservation period for the antioxidant capacity of two test vegetables.
The data was shown as Fig. 3.
The data were less than the fresh harvest and slightly larger than 16.6 ~ 24.4% reduction, but it still had good preservation effects.
Online since: September 2013
Authors: Xiao Xing Chen, Wen Yu Zhao, Jun Yi Yu, Bei Kong Ma, Guang Wen Yang
Some research data indicated that the EM bacteria have certain effect on removal of nitrogen and phosphorus in sewage [8].
Fig.1 Schematic diagram of the artificial lake Table.1 Monitoring results of water quality in the artificial lake before repaired* Item COD (mg/L) T-N (mg/L) T-P (mg/L) Turbidity (NTU) Duckweed coverage Range 53.4~85.9 11.35~13.18 3.02~3.58 50.2~67.8 90% * Datas in the table have been measured before the experiment in October 2011.
Table.2 Exogenous contamination in the artificial lake** Item COD (mg/L) T-N (mg/L) T-P (mg/L) Flow (m3/d) Range 211.3~337.8 68.03~85.12 9.21~14.33 4.08~6.67 ** Datas in the table have been measured for multiple samples betweeen October 2011 to June 2012.
Due to inability of reduction of P by conventional wastewater treatment systems, an integrated restoration technique was constructed to purify eutrophic water body.
Integrated restoration technique can also provide important research data for the theoretical research of similar eutrophic artificial lake.
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