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Online since: August 2013
Authors: Gao Ling, Shou Xin Ren
Some forms of data reduction are essential to make optimal use of the data information.
The independent source matrix S, resulted from ICA, was used as input data to PCR 3.
An absorption matrix for calibration D was built up from these data.
The essence of the step is the pseudo-rank determination of the raw experimental data.
The method can obtain very selective information from unselective full-spectrum data.
The independent source matrix S, resulted from ICA, was used as input data to PCR 3.
An absorption matrix for calibration D was built up from these data.
The essence of the step is the pseudo-rank determination of the raw experimental data.
The method can obtain very selective information from unselective full-spectrum data.
Online since: June 2011
Authors: Han Xing Liu, Xun Zhou, Gao Feng Chen, Jing Wu, Zhi Dong Lin
All cyclic voltammograms data were acquired using Electrochemical workstation (CHI660B).
Fig 2 SEM micrographs of organic-inorganic perovskite hybrid Electrochemical Oxidization and Reduction.
The reduction and oxidation potential of phenosafranine on CPE (Figure 3b) are 667.3 mV and -81.2 mV.
Figure 4 shows the reduction peak current of the hybrid on electrode can be affected by the value of pH.
The reduction peak current decreases with the increase of the value of pH, covering linear range from 1.0 to 6.0.
Fig 2 SEM micrographs of organic-inorganic perovskite hybrid Electrochemical Oxidization and Reduction.
The reduction and oxidation potential of phenosafranine on CPE (Figure 3b) are 667.3 mV and -81.2 mV.
Figure 4 shows the reduction peak current of the hybrid on electrode can be affected by the value of pH.
The reduction peak current decreases with the increase of the value of pH, covering linear range from 1.0 to 6.0.
Online since: November 2015
Authors: Shin Ichi Hirano, Yusei Masaki, Naoko Okibe
Microbial Community Structure Analysis of Blood Pond Hell Hot Spring
in Japan and Search for Metal-Reducing Microbes
Yusei Masakia, Shin-ichi Hiranob, Naoko Okibea*
a Department of Earth Resources Engineering, Kyushu University, Fukuoka 819-0395, Japan
b Central Research Institute of Electric Power Industry, Chiba 270-1194, Japan
*correspondence: okibe@mine.kyushu-u.ac.jp, +81-(0)92-802-3312
Keywords: microbial diversity, extreme environment, Fe(III) reduction, Cr(VI) reduction, Sulfolobus.
Two isolates showing Fe(III) reduction ability were named Sulfolobus sp.
Cr(VI) reduction test.
The fact that no decrease in total Cr concentrations was observed in cell suspensions (data not shown) indicate that highly toxic Cr(VI) was microbially reduced to less toxic/soluble Cr(III) in the solution phase.
The finding that Cr(VI) reduction was seen more effectively with GA1 than GA2 (Fig. 2), was consistent with our preliminary observation that GA1 reduced Fe(III) more readily than GA2.
Two isolates showing Fe(III) reduction ability were named Sulfolobus sp.
Cr(VI) reduction test.
The fact that no decrease in total Cr concentrations was observed in cell suspensions (data not shown) indicate that highly toxic Cr(VI) was microbially reduced to less toxic/soluble Cr(III) in the solution phase.
The finding that Cr(VI) reduction was seen more effectively with GA1 than GA2 (Fig. 2), was consistent with our preliminary observation that GA1 reduced Fe(III) more readily than GA2.
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.
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: November 2014
Authors: Keun Hyeok Yang, Eun A Seo, Dong Uk Choi
The parametric study clearly showed that high-strength concrete is favorable to the reduction of lifecycle CO2 amount of concrete columns, whereas the reduction is not expected for concrete beams.
However, available data are very rare for quantitatively evaluating the effect of FA on the lifecycle CO2 assessment of concrete structures including CO2 uptake owing to carbonation of concrete.
To summarize the lifecycle CO2 assessment of concrete structures in accordance with system boundary specified in ISO/DIS 13315-2 [2], a performance evaluation table was developed using the actual survey data obtained in 2012 in South Korea on the surrounding environment, CO2 concentration, lifecycle inventory database, and life expectancy of structures.
Tae, Effect of supplementary cementitious materials on reduction of CO2 emissions form concrete, J.
Prod., (2014), Under published [2] ISO/DIS 13315-2, Environmental management for concrete and concrete structures-Part 2, System boundary and inventory data, International organization for standardization, Geneva, Switzerland, 2013
However, available data are very rare for quantitatively evaluating the effect of FA on the lifecycle CO2 assessment of concrete structures including CO2 uptake owing to carbonation of concrete.
To summarize the lifecycle CO2 assessment of concrete structures in accordance with system boundary specified in ISO/DIS 13315-2 [2], a performance evaluation table was developed using the actual survey data obtained in 2012 in South Korea on the surrounding environment, CO2 concentration, lifecycle inventory database, and life expectancy of structures.
Tae, Effect of supplementary cementitious materials on reduction of CO2 emissions form concrete, J.
Prod., (2014), Under published [2] ISO/DIS 13315-2, Environmental management for concrete and concrete structures-Part 2, System boundary and inventory data, International organization for standardization, Geneva, Switzerland, 2013
Online since: November 2006
Authors: C.P. Bergmann, S.R. Bragança, R. Camaratta, A.C. Taborda
In red ceramics, the result of
the substitution of feldspars showed very advantageous [1], and also an important economic
benefit from reduction of firing temperature and reduction of gases emissions was found [2].
To obtain the data of the curve shown in Fig. 3, the slip was manually stirred for 1 minute before data recording after each deflocculant addition (usual procedure for a deflocculation curve).
From data shown in Fig. 5, a reduction of viscosity with glass addition can be also noticed.
This data provide the thixotropic behavior of the slip for ceramic parts casting.
Table 4: Slip fluidity data (aged slip) in Gallenkamp viscometer.
To obtain the data of the curve shown in Fig. 3, the slip was manually stirred for 1 minute before data recording after each deflocculant addition (usual procedure for a deflocculation curve).
From data shown in Fig. 5, a reduction of viscosity with glass addition can be also noticed.
This data provide the thixotropic behavior of the slip for ceramic parts casting.
Table 4: Slip fluidity data (aged slip) in Gallenkamp viscometer.
Online since: October 2014
Authors: Michael R. Jennings, Stephen M. Thomas, Y.K. Sharma, C.A. Fisher, P.A. Mawby
Whilst models of the oxidation kinetics and defect generation are being developed [4,5,6,7], much more experimental data is needed to support understanding.
A reduction in the frequency dispersion is observed with decreasing oxygen flow rate signifying a reduction in the Dit.
The reduction in frequency dispersion signifies a reduction in the interface trap density.
The high Dit in the upper half of the SiC band gap (as compared to Si), has largely been attributed to the generation of electrically active carbon dimer defects near the interface during oxidation.[6, 9] Thus the reduction in Dit may be due to a reduction in the number of carbon dimers.
Thus the increase in EOT and reduction in Dit observed in the present work, may be due to the fewer carbon dimers being formed.
A reduction in the frequency dispersion is observed with decreasing oxygen flow rate signifying a reduction in the Dit.
The reduction in frequency dispersion signifies a reduction in the interface trap density.
The high Dit in the upper half of the SiC band gap (as compared to Si), has largely been attributed to the generation of electrically active carbon dimer defects near the interface during oxidation.[6, 9] Thus the reduction in Dit may be due to a reduction in the number of carbon dimers.
Thus the increase in EOT and reduction in Dit observed in the present work, may be due to the fewer carbon dimers being formed.
Online since: October 2013
Authors: Zhi Yun Zhang, Wei Shui Fei, Chong Xiang, Dong Jun Zhou
Crack under the embankment deformation and failure to carry out deep displacement monitoring data, according to the severity of slope disease divided three districts: District A relatively unstable, mileage K28 +360 ~ +560, length of 200meters, are filling the road embankment sections, existing local signs of deformation and failure; zone B of instability and severe disease, mileage K28 +560 ~ K28 +810, 250meters in length, are Cut and Fill steep road embankment sections, have been found to severe deformation and failure; C area is relatively unstable region, mileage K28 +810 ~ +860, length 50meters, is a semi-Cut and Fill steep road embankment sections.
The numerical strength reduction Slope stability analysis.
Soil strength reduction factor K take from 1 to 0.8.
Slope stability analysis by strength reduction[J].
Stability analysis on jointed rock slope by strength reduction FEM [J].
The numerical strength reduction Slope stability analysis.
Soil strength reduction factor K take from 1 to 0.8.
Slope stability analysis by strength reduction[J].
Stability analysis on jointed rock slope by strength reduction FEM [J].
Online since: August 2017
Authors: Viktor Molnar
It is found that drastic reduction of the scrap rate, though increasing customer satisfaction, is not always a proper solution due to the extent of quality cost.
Quality cost is an estimated item, which shows the amount of expenditure that would be needed if quality level was intended to increase, resulting in reduction of the scrap rate.
Table 1 contains the calculations on the basis of the given data, while Fig. 3 summarizes the three profit categories.
· Scrap rate reduction, with less effort than estimated in determining the 0.025 scrap rate target, is obviously advisable
Table 2 Evaluation of model on scale 1-5, where 1: poor; 3: average; 5: excellent (own construction) Interviewed manager Position Simplicity Availability of data Accuracy Acceptability by staff Usefulness Average M1 Head of controlling group 5 2 4 5 5 4.20 M2 Industrial engineer 5 5 5 4 3 4.40 M3 Project manager 4 3 5 4 5 4.20 M4 Lean engineer 3 4 5 2 5 3.80 M5 Deputy financial director 5 3 5 3 4 4.00 M6 Project manager 5 4 4 5 4 4.40 Average: 4.50 3.50 4.67 3.83 4.33 4.17 Summary The intention in introducing this model is to emphasize the importance and relevance of opportunity costs in companies where – due to the financial characteristics of mass production processes – a minor change in first cost or scrap rate could influence the total profit significantly.
Quality cost is an estimated item, which shows the amount of expenditure that would be needed if quality level was intended to increase, resulting in reduction of the scrap rate.
Table 1 contains the calculations on the basis of the given data, while Fig. 3 summarizes the three profit categories.
· Scrap rate reduction, with less effort than estimated in determining the 0.025 scrap rate target, is obviously advisable
Table 2 Evaluation of model on scale 1-5, where 1: poor; 3: average; 5: excellent (own construction) Interviewed manager Position Simplicity Availability of data Accuracy Acceptability by staff Usefulness Average M1 Head of controlling group 5 2 4 5 5 4.20 M2 Industrial engineer 5 5 5 4 3 4.40 M3 Project manager 4 3 5 4 5 4.20 M4 Lean engineer 3 4 5 2 5 3.80 M5 Deputy financial director 5 3 5 3 4 4.00 M6 Project manager 5 4 4 5 4 4.40 Average: 4.50 3.50 4.67 3.83 4.33 4.17 Summary The intention in introducing this model is to emphasize the importance and relevance of opportunity costs in companies where – due to the financial characteristics of mass production processes – a minor change in first cost or scrap rate could influence the total profit significantly.
Online since: September 2007
Authors: Zhong Kui Zhao, Gui Qing Wang, Yan Liu
This heat treatment enhances strength substantially while there is a
reduction in ductility [2-4].
There are little published data describing the changes of tensile properties and microstructure with prolonged aging times.
Results and Discussion Tensile data for various test conditions are shown in Tables 1.
Elongation increases with age time from 20 h to 48 h but no significant reduction in UTS is observed.
Aging at 200 °C from 10 h to 20 h, elongation increases, but no significant reduction in UTS is observed.
There are little published data describing the changes of tensile properties and microstructure with prolonged aging times.
Results and Discussion Tensile data for various test conditions are shown in Tables 1.
Elongation increases with age time from 20 h to 48 h but no significant reduction in UTS is observed.
Aging at 200 °C from 10 h to 20 h, elongation increases, but no significant reduction in UTS is observed.