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Online since: March 2024
Authors: Nazzeri Abdul Rahman, Calvin Jose Jol, Nur Syahida Abdul Jalal, Wan Wafi Shahanney, Nooranisha Baharudin, Allene Albania Linus
The objectives of this study are (i) to conduct an experimental study analysis of electrocoagulation flocs from peat water sources at varied currents and reaction time by using batch electrocoagulation treatment with aluminium electrodes, (ii) to study on the composition and structure of electrocoagulation flocs by using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDX), and (iii) to conduct an operating energy cost analysis of peat water batch electrocoagulation treatment. 2.0 Methodology The methodology of the research consists of several parts: (i) study locations, (ii) experimental study, (iii) flocs analysis, (iv) water quality analysis, (v) data analysis and (vi) economic analysis. 2.1 Study Locations.
Water conductivity and salinity are measured by a conductivity meter, Hanzhan EZ-9910. 2.4 Data Analysis.
The dissolution of coagulant into solution is governed by Faraday’s Law as shown in Eq. 6: (6) where w is the metal dissolving (g M/cm2), I is the current (A), t is the time (t), M is the molecular weight of metal (gr/mol), Z is the number of electrons involved in the oxidation or reduction reaction and F is the Faraday’s constant (96,485 C/mol).
Online since: September 2005
Authors: W. Bevis Hutchinson, Pete S. Bate, Lena Ryde
Most of the models utilised only the initial and final textures with no other independent data and usually the austenite parent texture has had to be assumed.
In this thick plate, the micro-segregation pattern is not extremely lamellar since the total reduction from the as-cast state is less than 80%.
Sections of the ODFs are presented in Fig.5 for the parent austenite textures and the transformed ferrite textures with and without variant selection The present results make assumptions about the degree of activation of variant selection that cannot be tested on available data so they are only qualitative in predicting the type of texture change that is to be expected.
Online since: July 2013
Authors: Hong Jing Zhang
The data by using originPro 7.5 software analysis get the maximum absorption peak wavelengthλ max.
The three characteristic peaks solution absorbance scan curve of MRλ max1=362nm,λ max2=426.5nm are located,λmax3=585nm, then the comparison, in the water after the addition of HBS-1, methyl red three in water absorption maxima peak blue shift occurred in high frequency, low wavelength (lambda max<500nm) wavelength value reduction 4 ~ 6nm, while in the low frequency and high wavelength values (λ max>500nm) wavelength value trend is very obvious, the reduced 30nm.
The absorbance scan curve C precipitate is lower than that of D curve, data indicating the changes of absorption solution of the maximum position, three the maximum absorption peak position respectively intoλmax1=364.5nm,λmax2=427.5nm,λmax3=583.5nm, these three figures and aqueous solution of MR three characteristic peaks of absorbance values were almost the same (lambdaλmax1=362nm,λ max2=426.5nm,λmax3=585nm).
Online since: May 2016
Authors: Evangelos Hristoforou, E.D. Metaxa, K. Berkesi, D. Musmarra, Athanasios G. Mamalis
Furthermore, the oleic acid must be added to the above solution of aqueous alkali containing acetone in specific proportion, namely in a volume ratio of oleic acid to solution equal to 0.01:1.In general, oleic acid was selected as a very effective surfactant and oxidation-protector according to recent literature data [17].
It is observed a small deviation from the corresponding values estimated by using XRD data, but TEM-values are adopted as more accurate reference sizes for MNPs than those of XRD.
Domingues, pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method, Quim.
Online since: January 2025
Authors: Majid Ali, Arshad Ullah
The scarcity of historical data has limited the widespread use of fibers in concrete applications.
By utilizing data from previous research, a comparative analysis will be conducted between hybrid reinforced concrete containing a blend of fibers and conventional concrete without fiber admixture [7]. 3.
• Hybridization in reinforced concrete pavement enables a thickness reduction of up to 30% through enhanced compressive and tensile strengths.
Online since: March 2007
Authors: Robert Danzer
Data for geometric factors of many different geometries and loading situations can be found in standard handbooks [2, 3].
(b) The strength data of nominal identical specimen scatter because the size of the critical cracks is a little different from specimen to specimen.
Therefore the reduction of size and frequency of microstructural defects has an outstanding significance for the development of reliable components made from brittle materials.
Online since: February 2009
Authors: C.S. Okoli
This will be able to compare the data obtained in Nigeria with that of Germany and validate the results for the two different regions.
Statistical Analysis The data collected for rainfall, sediment yield and infiltration would be subjected to two-way analysis of variance (ANOVA) in accordance with the procedure of Steel and Torrie.
Interception is increased as foliar development in treatments A and C, which leads to reduction in runoff in the case of treatment A and C.
Online since: August 2013
Authors: Peng Mou, Dong Xiang, Huan Xiong Xia, Han Zhang
The data intuitively showed the temperature drop of the narrow gap between wafer and heater was 15~30K when the outlet pressure of the chamber was in the range of 1~10Torr.
Twt decreases when the height of the gap H1 increases, and the reduction degree are roughly equal under the same pressure, that is to say, Twt is almost negative linearly related to H1.
ACKNOWLEDGMENTS This research is supported by the National Science & Technology Major Project(No.02) of MOST (No.2011ZX02403), and the experimental data is provided by Shenyang Piotech Co., LTD.
Online since: January 2010
Authors: Gerhard Ziegmann, Lena Marks
      −− − − −− =                     12 13 23 33 22 11 12 31 23 3 3 32 3 31 2 23 2 2 21 1 13 1 12 1 21 31 23 33 22 11 1 00000 0 1 0000 00 1 000 000 1 000 1 000 1 σ σ σ σ σ σ υυ υ υ υυ γ γ γ ε ε ε G G G EEE EEE EEE (2) The nine independent constants are - 3 Young's moduli 321 E ,E ,E - 3 shear moduli 312312 G ,G ,G - 3 Poisson's ratios 312312 , , υυυ Due to the symmetry of the compliance tensor additional conditions have to be fulfilled, that leads to Maxwell-Betti's law: 2 21 1 12 EE υυ = , 3 31 1 13 EE υυ = , 3 32 2 23 EE υυ = (3) Inversion of the compliance tensor (2) leads to the elasticity tensor as in (1) and vice versa 1− = CS (4) The special case of orthotropy, where two main directions have the same material properties leads to a further reduction
Herein assumptions like perfect fibre matrix connection are made, which lead to differences in comparison to experimental data especially in high fibre volume contents.
Another example for a semi-empirical approach is the rule of Halpin-Tsai [6]: ηφ ξηφ − − = 1 1 Rp p (25a) ξ η + − = RF RF pp pp / 1/ (25b) The p stands for the property that has to be homogenized and ξ is a factor that depends on experimental data as well as fibre package and fibre geometry.
Online since: September 2013
Authors: Zhan Bin Huang, Kai Wang, Ying Liu, Hai Hua Jiao, Zhi Hui Bai
ANOVA for the whole set of data on PLFA contents revealed significant changes between soils treated with and without SAP.
PC1 (72.15%) and PC2 (21.73%) accounted for 93.88% of the variation within the data, soil microbial PLFAs indicated a clear difference between untreated and SAP-amended soils.
Cultivation for 6 months in SAP-treated soils resulted in higher reduction of the TPH content, i.e., CK (31.22 ± 0.5%), wheat (71.75 ± 2.3%), cabbage (70.69 ± 2.1%), and spinach (72.78 ± 2.2%), respectively.
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