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Online since: March 2014
Authors: Luqman Chuah Abdullah, Russly Abdul Rahman, Maryam Jokar
Growth kinetic parameters of E.coli and S.aureus affected by silver nanocomposites were calculated by modeling of absorbance data according to Gomperz equation.
The results indicated that a modified Gompertz equation (Eq. 3) was fitted well to all experimental absorbance data.
Parameter values obtained by fitting Equation (3) to the experimental data of LBL deposited nanocomposites for E. coli.
Parameter values obtained by fitting Equation (4.4) to the experimental data of LBL deposited nanocomposites for S. aureus.
The growth curves result from fitting the Equation (3) to the experimental data for E. coli.
The results indicated that a modified Gompertz equation (Eq. 3) was fitted well to all experimental absorbance data.
Parameter values obtained by fitting Equation (3) to the experimental data of LBL deposited nanocomposites for E. coli.
Parameter values obtained by fitting Equation (4.4) to the experimental data of LBL deposited nanocomposites for S. aureus.
The growth curves result from fitting the Equation (3) to the experimental data for E. coli.
Online since: August 2020
Authors: Mohammed Y. Fattah, Hala H.M. Al-Kalali, Bushra S. Zbar
Box with data acquisition system.
But when the geogrid width increased, the pipe shows less reduction in strain.
Figure 14 shows the reduction percent in the vertical stresses beneath the reinforcement embedded in medium sand, the reduction percent when the geogrid width equal B is 24 and 33% when the width equal to 2 B, and 60% when used geocell.
Reinforcement prevents the occurrence of most adverse mechanisms, resulting in increased load reduction.
Similarly, the reduction percent in the vertical stresses beneath the reinforcement embedded in medium sand, the reduction percent when the geogrid width equal B is 24% and 33% when the width equal to 2B, and 60 % when used geocell.
But when the geogrid width increased, the pipe shows less reduction in strain.
Figure 14 shows the reduction percent in the vertical stresses beneath the reinforcement embedded in medium sand, the reduction percent when the geogrid width equal B is 24 and 33% when the width equal to 2 B, and 60% when used geocell.
Reinforcement prevents the occurrence of most adverse mechanisms, resulting in increased load reduction.
Similarly, the reduction percent in the vertical stresses beneath the reinforcement embedded in medium sand, the reduction percent when the geogrid width equal B is 24% and 33% when the width equal to 2B, and 60 % when used geocell.
Online since: September 2014
Authors: Wan Jun Fu, Wei Liang
Guangzhou 510530, P R China
afuwanjun2002@163.com, bjlft488@163.com
Keywords: soft fiber wadding; water purification; energy saving; emission reduction
Abstract.A new promising water purification technology, soft fiber wadding filter, was introduced in this article.
The technology has the advantages of energy saving and emission reduction efficiency greatly, is currently the most advanced water purification.
Quartz sand filter and soft fiber filter the actual data comparison results are shown in Table 2 Table 2.
The technology has the advantages of energy saving and emission reduction efficiency greatly, is currently the most advanced water purification.
Quartz sand filter and soft fiber filter the actual data comparison results are shown in Table 2 Table 2.
Online since: October 2011
Authors: Yu Hong Yang, Bai Xing Yan, Hui Zhu, Li Xia Wang
To data, the reservoir water quality doesn’t meet its designated uses standard.
This result is similar to the monitoring data on the key small watershed plots [12].
Predicted reduction in sediment for terrace was almost 95%.
Fig.1 Sediment delivery rate and runoff from terrace and contouring at different rain events By comparison with contouring tillage, terrace could reduce soil erosion 74% and intercept runoff 45% on the basis of field monitoring data.
Reductions in P were predicted for contouring.
This result is similar to the monitoring data on the key small watershed plots [12].
Predicted reduction in sediment for terrace was almost 95%.
Fig.1 Sediment delivery rate and runoff from terrace and contouring at different rain events By comparison with contouring tillage, terrace could reduce soil erosion 74% and intercept runoff 45% on the basis of field monitoring data.
Reductions in P were predicted for contouring.
Online since: September 2013
Authors: Zhun Tian
However, the assumption of negative binomial distribution is more realistic than Poisson distribution since it has been shown (Kulmala, 1995) that most collision data is over-dispersed (i.e., their variance exceeds their mean).
The model can be viewed as a good fit to the data when both values of scaled deviance and Pearson χ2 are significant at a given confidence level.
Model Development Data.
Their values were estimated based on the spot speed data.
Speed, traffic volume, section length, and collision data are collected for 60 urban road sections in one city in China for the purpose of model development.
The model can be viewed as a good fit to the data when both values of scaled deviance and Pearson χ2 are significant at a given confidence level.
Model Development Data.
Their values were estimated based on the spot speed data.
Speed, traffic volume, section length, and collision data are collected for 60 urban road sections in one city in China for the purpose of model development.
Online since: September 2013
Authors: Si Wei Pan, Zheng Le Wei, Ning Zhao
Discussion and Research on the Deactivation of the SCR Catalyst in the Coal-fired Power Plants
Ning Zhao1, a, Siwei Pan, and Zhengle Wei
1Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou, Guangdong 510080, China
aemail: 15088050825@163.com
Keywords: selective catalytic reduction; SCR catalyst; activity; deactivation
Abstract.
The selective catalytic reduction (SCR) was the most common and effective technology to remove NOx from flue gas, widely used in the power plants[1,2].
Combined with SEM characterization results, the used catalyst can be sintered and resulted in reduction of its catalytic activity.
By the XRF data from Table 5, we can see the main element content of SCR catalyst (TiO2, V2O5 and WO3) was slight changes.
Besides, a certain degree of sintering occurred on the surface of the used catalyst, which caused the reduction of the specific surface area.
The selective catalytic reduction (SCR) was the most common and effective technology to remove NOx from flue gas, widely used in the power plants[1,2].
Combined with SEM characterization results, the used catalyst can be sintered and resulted in reduction of its catalytic activity.
By the XRF data from Table 5, we can see the main element content of SCR catalyst (TiO2, V2O5 and WO3) was slight changes.
Besides, a certain degree of sintering occurred on the surface of the used catalyst, which caused the reduction of the specific surface area.
Online since: February 2013
Authors: Keishi Matsuda, Hidenori Ishihara
Asama et al. proposed the Intelligent Data Carrier (IDC) with the aim of sharing knowledge among the robots [4]-[6].
In the simulation (Fig.6), 1000 of sample testing data for the simulation was generated by randomly using normal distribution under the condition of standard deviation 0.035 cm and average 1.00 cm.
The generated data indicate the index of the quality.
This is caused by the process of random data generation by the simulator.
Kurabayashi, H.Asama et.al;”Autonomous Knowledge Acquisition and Revision of Dynamic Environment by Intelligent Data Carriers”ROBMEC2000, 2PI-33-035.
In the simulation (Fig.6), 1000 of sample testing data for the simulation was generated by randomly using normal distribution under the condition of standard deviation 0.035 cm and average 1.00 cm.
The generated data indicate the index of the quality.
This is caused by the process of random data generation by the simulator.
Kurabayashi, H.Asama et.al;”Autonomous Knowledge Acquisition and Revision of Dynamic Environment by Intelligent Data Carriers”ROBMEC2000, 2PI-33-035.
Online since: January 2014
Authors: Shu Cong Liu, Chen Xun, Er Gen Gao
Seismic Data Denoising Simulation Research Based on Wavelet Transform
Shucong Liu1, a, Ergen Gao1,a and Chen Xun1,a
1 Institute of Disaster Prevention, Sanhe, China
afzxylsc@sina.com
Keywords: seimic denoising; wavelet packet; simulation; MATLAB;
Abstract: The wavelet packet transform is a new time-frequency analysis method, and is superior to the traditional wavelet transform and Fourier transform, which can finely do time-frequency dividion on seismic data.
In some conditions it requires some data processing in order to suppress the noise to improve the resolution of seismic data when relying completely suppress random noise in field is not possible.
Wavelet analysis has been applied in the seismic data.
Wavelet packet[4] was used for multi-resolution analysis to seismic data, not only low-frequency seismic data were done continuous decomposition, but the information lost in low-frequency is also decomposed, in order to achieve more precise decomposition method than the wavelet analysis to meet the time field seismic frequency component precisely division.
A research on the noise-elimination method of pre-stack seismic data by wavelet packet transform.
In some conditions it requires some data processing in order to suppress the noise to improve the resolution of seismic data when relying completely suppress random noise in field is not possible.
Wavelet analysis has been applied in the seismic data.
Wavelet packet[4] was used for multi-resolution analysis to seismic data, not only low-frequency seismic data were done continuous decomposition, but the information lost in low-frequency is also decomposed, in order to achieve more precise decomposition method than the wavelet analysis to meet the time field seismic frequency component precisely division.
A research on the noise-elimination method of pre-stack seismic data by wavelet packet transform.
Online since: February 2012
Authors: Bin Zhao, Di Ma
The sphere-like nano-Cu2O was prepared by chemical precipitation and reduction method, the different size of sample was obtained by adjusting reaction temperature and concentration of NaOH solution.
Comparing to the traditional treatments such as chemical reduction, ion exchange, electrochemical technics and activated carbon absorption, the photocatalytic process has been shown to be efficient for degradation and mineralization of various organic pollutants at room temperature and normal pressure.
But photocatalytic reduction of the chromium(VI)-containing waste water by Cu2O has been seldom concerned.
Fig. 1 XRD pattern of Cu2O prepared with temp. 20℃/NaOH conc. 2mol/L All the peaks in the Fig. 1 agree well with the reported data (JCPDS No.05-0667), no other peaks was observed, the four corresponding crystal plane (110),(111),(200) and(220)are identified as the main peak of Cu2O.
Table 1 The effect of particle size of sphere Cu2O to the photocatalytic property sample morphology Size(μm) Reduction rate(%) 1 sphere 2-3 78.3 2 sphere 4-5 75.5 3 sphere(inhomogeneous) 2-6 73.1 4 5 6 sphere(inhomogeneous,not smooth) 2-6 71.8 sphere(inhomogeneous,not smooth) 1-7 70.5 sphere 1-2 81.2 As shown in Table 1, excellent photocatalytic property can be obtained with smaller particle size, the decreased particle size leads to the BET surface area and the photocatalytic reaction sites increase, which will improve the photocatalytic activity.
Comparing to the traditional treatments such as chemical reduction, ion exchange, electrochemical technics and activated carbon absorption, the photocatalytic process has been shown to be efficient for degradation and mineralization of various organic pollutants at room temperature and normal pressure.
But photocatalytic reduction of the chromium(VI)-containing waste water by Cu2O has been seldom concerned.
Fig. 1 XRD pattern of Cu2O prepared with temp. 20℃/NaOH conc. 2mol/L All the peaks in the Fig. 1 agree well with the reported data (JCPDS No.05-0667), no other peaks was observed, the four corresponding crystal plane (110),(111),(200) and(220)are identified as the main peak of Cu2O.
Table 1 The effect of particle size of sphere Cu2O to the photocatalytic property sample morphology Size(μm) Reduction rate(%) 1 sphere 2-3 78.3 2 sphere 4-5 75.5 3 sphere(inhomogeneous) 2-6 73.1 4 5 6 sphere(inhomogeneous,not smooth) 2-6 71.8 sphere(inhomogeneous,not smooth) 1-7 70.5 sphere 1-2 81.2 As shown in Table 1, excellent photocatalytic property can be obtained with smaller particle size, the decreased particle size leads to the BET surface area and the photocatalytic reaction sites increase, which will improve the photocatalytic activity.
Online since: June 2014
Authors: Ke Ke Hu, Hai Bo Xu, Zhen Hua Peng
Pollution reduction is the most fundamental way to improve river water quality.
According to river investigation data, the river water volume is 38.66 million m3 in the same conditions, with the error of 2.6%.
Due to a corresponding drainage gate records, statistical data of Ou Riverwater lift station and Chen’ao intake, and pollution survey data during the period of 2010-9-4 to 2010-10-30 which is the basis of parameter and model validation, and that water quality is close to multi-year mean value, this paer Selects this period for model validation period, and the simulation time is about 57 d
(1)Water level validation:The xishan station rainfall data is adapted.
The reduction of pollution load levels is adopted according to relevant results.
According to river investigation data, the river water volume is 38.66 million m3 in the same conditions, with the error of 2.6%.
Due to a corresponding drainage gate records, statistical data of Ou Riverwater lift station and Chen’ao intake, and pollution survey data during the period of 2010-9-4 to 2010-10-30 which is the basis of parameter and model validation, and that water quality is close to multi-year mean value, this paer Selects this period for model validation period, and the simulation time is about 57 d
(1)Water level validation:The xishan station rainfall data is adapted.
The reduction of pollution load levels is adopted according to relevant results.