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Online since: July 2014
Authors: Fatemeh Shahsavari, Masoumeh Heidari Moghadam
Otherwise, the result is an imitation of the original building and it will cause transferring false data and increasing incorrect understanding about the main building instead of re-creating it (Ray, 1980, p 65).
In this way, presenting false data is potentially prevented and the architect uses his contemporary architectural methods in development designs and the plan will differ with what already exists due to the dynamics and evolution of the architecture of the time.
Discussion and data describing: the analysis of the case and explaining the statistics and percentages and drawing the graphs The studied examples within the questionnaire are 5 different monuments in Tehran and mostly historical parts go back to the period of Qajar age.
Using contemporary architecture with respect to the original structure of the building prevents presenting false data by copying and imitating the style of the old building.
In this paper, it is recommended to interpret the data and then conclude based on the elements and details and finally make logical decisions.
In this way, presenting false data is potentially prevented and the architect uses his contemporary architectural methods in development designs and the plan will differ with what already exists due to the dynamics and evolution of the architecture of the time.
Discussion and data describing: the analysis of the case and explaining the statistics and percentages and drawing the graphs The studied examples within the questionnaire are 5 different monuments in Tehran and mostly historical parts go back to the period of Qajar age.
Using contemporary architecture with respect to the original structure of the building prevents presenting false data by copying and imitating the style of the old building.
In this paper, it is recommended to interpret the data and then conclude based on the elements and details and finally make logical decisions.
Online since: November 2013
Authors: S. Azhari, R. Ahmad, M.S. Rosmi
The experimental data was analysed by both Freundlich and Langmuir isotherm models.
Various methods have been studied for the removal of cadmium including electroplating, evaporating, oxidation, reduction, membrane separation, ion exchange and adsorption [5-6].
Kinetics studies and Adsorption Isotherms Model In this study, the kinetic data of Cd(II) on the adsorbent studied was analyzed in terms of pseudo-second-order reactions.
For the adsorption isotherm model, the equilibrium data obtained for Cd(II) removal using SPW, SB and AC was tested with one isotherm models which is Langmuir isotherm.
Adsorption Isotherm and Kinetic studies From Fig. 3(a) and Table 2, it was found that the data obtained is linear with good correlation coefficients where the correlation coefficients (R2) were more than 0.999 for the three types of adsorbents.
Various methods have been studied for the removal of cadmium including electroplating, evaporating, oxidation, reduction, membrane separation, ion exchange and adsorption [5-6].
Kinetics studies and Adsorption Isotherms Model In this study, the kinetic data of Cd(II) on the adsorbent studied was analyzed in terms of pseudo-second-order reactions.
For the adsorption isotherm model, the equilibrium data obtained for Cd(II) removal using SPW, SB and AC was tested with one isotherm models which is Langmuir isotherm.
Adsorption Isotherm and Kinetic studies From Fig. 3(a) and Table 2, it was found that the data obtained is linear with good correlation coefficients where the correlation coefficients (R2) were more than 0.999 for the three types of adsorbents.
Online since: September 2013
Authors: Rabab Khalid Sendi, Shahrom Mahmud
The annealing treatment also improved the grain crystallinity, as shown by the transition of the intrinsic compressive stress to tensile stress based on the XRD lattice constant and full-width at half-maximum data.
The EDX data show that the oxygen content in the varistor increased with increasing annealing temperature because of the increase in the oxygen diffusion energy.
Hence, the variation in the band-gap with temperature significantly correlated with the stress in the varistor, indicating that the increase in the annealing temperature induced an increase in the grain size, and caused a reduction in the quantum size effect (or in the energy band-gap) in the ZnO nanoparticles [19,20].
Table 1 : Summarized data from SEM images, XRD patterns, and PL spectra PL Peak XRD SEM Annealing temperature Energy band-gap (e V) Wavelength λ1 (nm) Stress (σ) (G.Pa) c (Å) a (Å) 2θ (deg.)
Increasing the annealing temperature from 400 °C to 800 °C resulted in a larger grain size and improved grain crystallinity, as indicated by the decreased intrinsic compressive stress deduced from the XRD lattice constant and FWHM data.
The EDX data show that the oxygen content in the varistor increased with increasing annealing temperature because of the increase in the oxygen diffusion energy.
Hence, the variation in the band-gap with temperature significantly correlated with the stress in the varistor, indicating that the increase in the annealing temperature induced an increase in the grain size, and caused a reduction in the quantum size effect (or in the energy band-gap) in the ZnO nanoparticles [19,20].
Table 1 : Summarized data from SEM images, XRD patterns, and PL spectra PL Peak XRD SEM Annealing temperature Energy band-gap (e V) Wavelength λ1 (nm) Stress (σ) (G.Pa) c (Å) a (Å) 2θ (deg.)
Increasing the annealing temperature from 400 °C to 800 °C resulted in a larger grain size and improved grain crystallinity, as indicated by the decreased intrinsic compressive stress deduced from the XRD lattice constant and FWHM data.
Online since: August 2014
Authors: Tadeusz Nieszporek, Andrzej Piotrowski
The first group includes power supplies, data bus connectors, coupling coils, bus wires and data buses.
However, an additional, fourth, core (data line) is required in the cable.
Communication between modules takes place via the data transmission conductors.
Each data package contains the ID source address, a field with the control sum, an information fields, the destination address and the segment address, and a 24-bit data field.
The next rows describe data decoding and storing in a predefined file.
However, an additional, fourth, core (data line) is required in the cable.
Communication between modules takes place via the data transmission conductors.
Each data package contains the ID source address, a field with the control sum, an information fields, the destination address and the segment address, and a 24-bit data field.
The next rows describe data decoding and storing in a predefined file.
Online since: December 2012
Authors: Manish Mishra, Rajesh J. Tayade, Sajid I. Mogal, Vimal G. Gandhi
Holes and electrons migrate to the surface of the photocatalyst where they can initiate oxidation and reduction reactions with adsorbed species.
The photo reduction method has also been employed for the synthesis of metal (in reduced form) doped titanium dioxide [36-38].
From the XRD data, the crystallite size of anatase phase is calculated by Scherer’s formula using anatase (1 0 1) peak [28, 33, 35].
Amal, Effects of nano-Ag particles loading on photocatalytic reduction of selenateions,Chem.
Mohseni, Synthesis of photocatalytic nanosized TiO2–Ag particles with sol–gel method using reduction agent, J.
The photo reduction method has also been employed for the synthesis of metal (in reduced form) doped titanium dioxide [36-38].
From the XRD data, the crystallite size of anatase phase is calculated by Scherer’s formula using anatase (1 0 1) peak [28, 33, 35].
Amal, Effects of nano-Ag particles loading on photocatalytic reduction of selenateions,Chem.
Mohseni, Synthesis of photocatalytic nanosized TiO2–Ag particles with sol–gel method using reduction agent, J.
Online since: February 2026
Authors: Babatunde Kazeem Adeoye, Nwitte Eze Ugo, A.I. Alao, A.O. Omoseebi
The validation compares the calculated and real data for pigging efficiency and pressure drop.
According to the data, the suggested model's prediction error for pigging efficiency is 41.0%. 2.2.2 Utility model This is another mechanical technique used for scraping paraffin wax deposits on oil pumping rod of a well opening.
The result demonstrated significant improvement in the relative errors between estimated and measured values for deposit thickness and paraffin wax fraction when validated with the deposition data generated from a laboratory-scale flow loop.
Data-driven approaches for predicting wax deposition.
New intelligent models for predicting wax appearance temperature using experimental data-Flow assurance implications.
According to the data, the suggested model's prediction error for pigging efficiency is 41.0%. 2.2.2 Utility model This is another mechanical technique used for scraping paraffin wax deposits on oil pumping rod of a well opening.
The result demonstrated significant improvement in the relative errors between estimated and measured values for deposit thickness and paraffin wax fraction when validated with the deposition data generated from a laboratory-scale flow loop.
Data-driven approaches for predicting wax deposition.
New intelligent models for predicting wax appearance temperature using experimental data-Flow assurance implications.
Online since: April 2019
Authors: Saeed D. Mohan, Imran Khan, Artur Mateus, Geoffrey R. Mitchell, Christina S. Kamma-Lorger
AM refers to a group of technologies that build physical objects directly from 3D Computer-Aided Design (CAD) data.
After the brief introduction of each technique, the published data was presented and discussed.
A Pie chart (Fig. 19) is used to show NP % usage in to AM based on the data collected for the present study.
Comparative chart for AM processes employing nanocomposites based on the data used in this study.
The studies conducted in the past can be used as preliminary data to print parts that can benefit society.
After the brief introduction of each technique, the published data was presented and discussed.
A Pie chart (Fig. 19) is used to show NP % usage in to AM based on the data collected for the present study.
Comparative chart for AM processes employing nanocomposites based on the data used in this study.
The studies conducted in the past can be used as preliminary data to print parts that can benefit society.
Online since: November 2011
Authors: Jun Guo He, Fei Liu, Bao Ping Han, Bo Wei Zhao, Jian Liu
The results had significant application on tannery wastewater treatment with great reduction of pollution.
The average generation time of bacteria based on compound salt NaCl:Na2SO4 4:1 3:2 2:3 1:4 T/min 30.8 33.4 35.8 39.7 The data in Tab.3 showed that under the condition of pure salt, the average generation time of bacteria increased while the concentration of NaCl increased; it indicated that with the salinity increasing, the influence of salt on the average generation time of bacteria increased.
The relation between salinity of tannery wastewater and the generation time of bacteria under the condition of compound salt could be obtained by correction Eq. (9): (14) According to Eq.(10) and the data in Tab.4 , it could be obtained that KNaCl:KNa2SO4≈1:3.
The total salt concentration of actual tannery wastewater was about 5g/L,it could be calculated that KNaCl:K'≈1:2 according to the average generation time of bacteria estimated 34min and the data were in Tab.3.
The average generation time of bacteria based on compound salt NaCl:Na2SO4 4:1 3:2 2:3 1:4 T/min 30.8 33.4 35.8 39.7 The data in Tab.3 showed that under the condition of pure salt, the average generation time of bacteria increased while the concentration of NaCl increased; it indicated that with the salinity increasing, the influence of salt on the average generation time of bacteria increased.
The relation between salinity of tannery wastewater and the generation time of bacteria under the condition of compound salt could be obtained by correction Eq. (9): (14) According to Eq.(10) and the data in Tab.4 , it could be obtained that KNaCl:KNa2SO4≈1:3.
The total salt concentration of actual tannery wastewater was about 5g/L,it could be calculated that KNaCl:K'≈1:2 according to the average generation time of bacteria estimated 34min and the data were in Tab.3.
Online since: March 2012
Authors: Ji Mei Chen, Bing Xiao Liu
The viscosity of ployacryamide(PAM) solution is measured by CVRO200 rheometer under low shear rate after different shear time.The results show that the viscosity of PAM solution having the same concentration and hydrolysis degree increases with the molecular weight increasing.The viscosity of ionic PAM solution is far more than that of non-ionic PAM in the case of the same mass concentration.The viscosity of PAM solution decreases significantly with the brine salinity increasing,and ionic PAM is influenced much more seriously than the non-ionic PAM.An increase in temperature and the concentration of sodium hydroxide causes a great reduction of the viscosity of PAM solution,and non-ionic surfactant can lower the viscosity of PAM solution,but the impact is not very serious.Moreover the viscosity of PAM solution reduces obviously with the increase of shear rate and shear time.At the same time,the relevant theoretical interpretation is given.All these might serve definite purpose for the study
The comparison of Table 3 with Table 1 and Table 2 obviously shows that the viscosity of ionic PAM solution is much larger than that of nonionic PAM solution at the same concentration.It is the structure of polymer in solution that results into the difference.The ionic PAM molecule in solution is charged which make the polymer molecule in the stretch state,but the nonionic polymer almost displays crimple state.Data in Table 3 show that molecular weight and viscosity of the polymer reduce as the shear time increases.So if we want to obtain anticipated viscosity of polymer solution,small amount of higher molecular weight polymer is economically superior to relatively large amount of lower molecular weight polymer[2].
Data in Table 4 shows that the difference of the viscosity of polymer in different shear time between the saltness of 30 g/L and without any sodium chloride at a constant shear rate,and the influence of sodium chloride on the polymer viscosity is considerably serious,which makes its viscosity reduce greatly.Because of the increase of salinity,the electrical repulsion force of carboxylate ions on the polymer is shielded,and the size of molecule crimped and decreased,which leaded to the decrease of polymer viscosity[3].
Data in Table 5 shows that the influence of the saltness on the viscosity of polymer solution becomes weaker and weaker.The comparison between table 4 and table 5 indicates that the influence of sodium chloride on the ionic PAM solution is more serious than that of nonionic PAM solution.The main reason is probably attributed to the difference of their hydrolytic molecular structure.Mechanism analysis of above-mentioned results can be explained as follows:In the solution of the partially hydrolyzed PAM,sodion in the sodium acetate group ionizes makes the group electron-negative.The mutual repulsion of acetate ion in the polymer makes the high molecule chain extended,and the size of the molecule is relatively large which makes both the flow resistance and the viscosity of the polymer solution increase.when the salinity increases,the sodium ion accumulates around the group of acetate ion and weakens the function of the negative ion,thus the mutual repulsion function of acetate ion weakens,
The comparison of Table 3 with Table 1 and Table 2 obviously shows that the viscosity of ionic PAM solution is much larger than that of nonionic PAM solution at the same concentration.It is the structure of polymer in solution that results into the difference.The ionic PAM molecule in solution is charged which make the polymer molecule in the stretch state,but the nonionic polymer almost displays crimple state.Data in Table 3 show that molecular weight and viscosity of the polymer reduce as the shear time increases.So if we want to obtain anticipated viscosity of polymer solution,small amount of higher molecular weight polymer is economically superior to relatively large amount of lower molecular weight polymer[2].
Data in Table 4 shows that the difference of the viscosity of polymer in different shear time between the saltness of 30 g/L and without any sodium chloride at a constant shear rate,and the influence of sodium chloride on the polymer viscosity is considerably serious,which makes its viscosity reduce greatly.Because of the increase of salinity,the electrical repulsion force of carboxylate ions on the polymer is shielded,and the size of molecule crimped and decreased,which leaded to the decrease of polymer viscosity[3].
Data in Table 5 shows that the influence of the saltness on the viscosity of polymer solution becomes weaker and weaker.The comparison between table 4 and table 5 indicates that the influence of sodium chloride on the ionic PAM solution is more serious than that of nonionic PAM solution.The main reason is probably attributed to the difference of their hydrolytic molecular structure.Mechanism analysis of above-mentioned results can be explained as follows:In the solution of the partially hydrolyzed PAM,sodion in the sodium acetate group ionizes makes the group electron-negative.The mutual repulsion of acetate ion in the polymer makes the high molecule chain extended,and the size of the molecule is relatively large which makes both the flow resistance and the viscosity of the polymer solution increase.when the salinity increases,the sodium ion accumulates around the group of acetate ion and weakens the function of the negative ion,thus the mutual repulsion function of acetate ion weakens,
Online since: July 2015
Authors: N. Alias, E. Yahya, T.A.T. Mohd, A. Azizi, Arina Sauki, Nurul Aimi Ghazali, M.Y.M. Yusof
From the mud rheology test, it was found that the specific gravity does not affected by the increasing concentration of apple skin and only a slight reduction in pH value to the acidic condition of the apple skin.
Introduction In petroleum exploration and development, drilling activities have been identified as the main activities which are performed in order to obtain information and data from the field of interest.
This data matched with the filtrate volume data and it can be concluded that the filtrate volume was also reduced due to the increase thick of mud cake accumulation.
Introduction In petroleum exploration and development, drilling activities have been identified as the main activities which are performed in order to obtain information and data from the field of interest.
This data matched with the filtrate volume data and it can be concluded that the filtrate volume was also reduced due to the increase thick of mud cake accumulation.