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Online since: March 2016
Authors: Krzysztof Mazur, Marek Pawelczyk
An active noise-canceling casing is very attractive for reduction of sound generated by
devices.
However, in this solution, in turn, noise reduction results are worse.
The effects of noise reduction are measured by three additional microphones M1-M3.
x(NN − NK) x(NN − NK + 1) . . . x(NN − 1) . (6) In the above equations the 0 time instant stands for the beginning of collecting the data, i.e. after convergence of the ANC system.
The acoustic noise reduction for such system is less than 1 dB.
However, in this solution, in turn, noise reduction results are worse.
The effects of noise reduction are measured by three additional microphones M1-M3.
x(NN − NK) x(NN − NK + 1) . . . x(NN − 1) . (6) In the above equations the 0 time instant stands for the beginning of collecting the data, i.e. after convergence of the ANC system.
The acoustic noise reduction for such system is less than 1 dB.
Online since: August 2013
Authors: Sergiu Mazuru, Maxim Casian
This extension of the file, type - 3D mesh data, divides the object into triangles with respective points and normal vectors (Fig. 2).
In Fig. 4 is shown how rude and inaccurate will come out the object texture if we make the file reduction to the 3000 points from the 385,976 initial points (a reduction of 99.27%).
So by increasing the number of points will increase the profile accuracy, but also will increase the processing time of data.
Object reduction to 3000 points and real object picture Careful analysis of grid meshing process led to the reduction to 198,080 points (a reduction of ≈51.3%), a value sufficient to maintain the real values of the profile (Fig. 5).
Object reduction to 198080 points Fig. 6.
In Fig. 4 is shown how rude and inaccurate will come out the object texture if we make the file reduction to the 3000 points from the 385,976 initial points (a reduction of 99.27%).
So by increasing the number of points will increase the profile accuracy, but also will increase the processing time of data.
Object reduction to 3000 points and real object picture Careful analysis of grid meshing process led to the reduction to 198,080 points (a reduction of ≈51.3%), a value sufficient to maintain the real values of the profile (Fig. 5).
Object reduction to 198080 points Fig. 6.
Online since: August 2012
Authors: Rui Yin Tang, Hong Kun He
The improve method of airspace filtering has the advantage of eliminating this drawback to get the ideal effect of noise reduction.
The results from the experiment have established that this method has a better effect of noise reduction than mid-value filtering and its improved methods, with the retention of the image details in an effective way. 2.
The mid-value filtering is to a large extent subject to the size of the filtering window in terms of the performance of noise reduction, with the existence of the contradiction of checking the image noise and protecting the image details.
In Document 1, the mid-value filtering of central weighting is presented, in which the image element in the window is rendered different value to adjust the contradiction between the noise reduction and details protection, resulting in the sacrifice of noise reduction capability.
The video data from the CCD TV camera is transmitted after SAA7113 decoding to FPGA which will make a treatment of filtering and compressing on it, after which the data shall be transmitted to the monitoring host machine through the Ethernet.
The results from the experiment have established that this method has a better effect of noise reduction than mid-value filtering and its improved methods, with the retention of the image details in an effective way. 2.
The mid-value filtering is to a large extent subject to the size of the filtering window in terms of the performance of noise reduction, with the existence of the contradiction of checking the image noise and protecting the image details.
In Document 1, the mid-value filtering of central weighting is presented, in which the image element in the window is rendered different value to adjust the contradiction between the noise reduction and details protection, resulting in the sacrifice of noise reduction capability.
The video data from the CCD TV camera is transmitted after SAA7113 decoding to FPGA which will make a treatment of filtering and compressing on it, after which the data shall be transmitted to the monitoring host machine through the Ethernet.
Online since: May 2009
Authors: Guan Zhou Qiu, He Shang, Qian Liu, Hai Bin Shi, Wen Qing Qin, Jian Wen Zhang, Jun Wang, Shi Jie Zhen, Yan Sheng Zhang
The oxidation process
of chalcopyrite does not produce covellite, Bornite is not the intermediary species formed during
the chalcopyrite reduction.
The product of this reduction is chalcocite(Arce,2002).
The analysis of CV associated with SEM and EDAX data can provide information about physical, chemical and biochemical processes occurring at the electrode/electrolyte (sulphide/culture medium) interface in the presence and absence of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus.
peak b, reduction reaction could be infered according to following equations(Holliday, Richmond,1990): 2+ 0 Cu +S +2e CuS→ (11) 2+ - 0 Cu +2e Cu→ (12) Fe 3++e Fe 2+ (13) Peak c(E=-0.2751) , there maybe exist the following reaction: + - 2+ 2 2 1.60 3CuS+2H +3.2e +0.6Cu Cu S+H S+ Cu S → (14) Jang reported that chalcopyrite can be hydrothermally converted to copper sulfides, covellite(CuS) and digenite(Cu1.8S), Bevilaqua studied bornite residues from bacterial leaching using X-ray diffraction indicated the formation of a new mineral phase identified as CuS (covellite)( Bevilaqua,2009).
SEM and EDAX data also demonstrated the satisfactory result.
The product of this reduction is chalcocite(Arce,2002).
The analysis of CV associated with SEM and EDAX data can provide information about physical, chemical and biochemical processes occurring at the electrode/electrolyte (sulphide/culture medium) interface in the presence and absence of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus.
peak b, reduction reaction could be infered according to following equations(Holliday, Richmond,1990): 2+ 0 Cu +S +2e CuS→ (11) 2+ - 0 Cu +2e Cu→ (12) Fe 3++e Fe 2+ (13) Peak c(E=-0.2751) , there maybe exist the following reaction: + - 2+ 2 2 1.60 3CuS+2H +3.2e +0.6Cu Cu S+H S+ Cu S → (14) Jang reported that chalcopyrite can be hydrothermally converted to copper sulfides, covellite(CuS) and digenite(Cu1.8S), Bevilaqua studied bornite residues from bacterial leaching using X-ray diffraction indicated the formation of a new mineral phase identified as CuS (covellite)( Bevilaqua,2009).
SEM and EDAX data also demonstrated the satisfactory result.
Online since: February 2019
Authors: V.I. Matyukhin, S.Ya. Zhuravlev, A.V. Khandoshka
When studying, particular combustion features of coal coke in conditions close to shaft cupola unit operation data of the total differential scanning calorimetry (DSC) curve were used.
Thermo-Gravimetric Analysis When studying the carbon oxidation process features of coal coke in conditions close to cupola type shaft unit operation data of total differential scanning calorimetry (DSC) curve of selected coke types at heating rates of 5 °С/min in air oxidizing atmosphere was used.
Fig. 2 shows experimental data on specific oxidation heat variation in exothermal coke period versus strength features of the used coke.
Change of coke strength after reaction CSR from 28 to 52.5% is accompanied by initial oxidation temperature level reduction from 540 to 525°С.
Komar Kawatra, Direct iron smelting reduction processes, Mineral processing and extractive metallurgy review.
Thermo-Gravimetric Analysis When studying the carbon oxidation process features of coal coke in conditions close to cupola type shaft unit operation data of total differential scanning calorimetry (DSC) curve of selected coke types at heating rates of 5 °С/min in air oxidizing atmosphere was used.
Fig. 2 shows experimental data on specific oxidation heat variation in exothermal coke period versus strength features of the used coke.
Change of coke strength after reaction CSR from 28 to 52.5% is accompanied by initial oxidation temperature level reduction from 540 to 525°С.
Komar Kawatra, Direct iron smelting reduction processes, Mineral processing and extractive metallurgy review.
Online since: May 2012
Authors: Lin Yun Shi, Zi Rui Lan, Jia Hui Yin, Hong Wu Zhang
Energy consumption data comes from each edition of "China Energy Statistical Yearbook" [2] and the emission coefficient is derived from the research results of done by Science and Technology Policy Institute Science and Technology Agency in Japan [3].
Fig.1 CO2 emission Changes of Chinese provinces Source: due to calculated data by the author The characteristics of the changes of the total CO2 emission in provinces It can be seen from Fig. 1 that the total CO2 emission of each Chinese province from 1995 to 2009 is incremental.
CO2 emission data used in the calculation comes from the calculated data.
The energy consumption data, GDP and population data all come from the China Statistical Yearbook "(Annual Version) [5].
Conclusions Through the use of Chinese data of energy consumption, CO2 emission of each province is calculated.
Fig.1 CO2 emission Changes of Chinese provinces Source: due to calculated data by the author The characteristics of the changes of the total CO2 emission in provinces It can be seen from Fig. 1 that the total CO2 emission of each Chinese province from 1995 to 2009 is incremental.
CO2 emission data used in the calculation comes from the calculated data.
The energy consumption data, GDP and population data all come from the China Statistical Yearbook "(Annual Version) [5].
Conclusions Through the use of Chinese data of energy consumption, CO2 emission of each province is calculated.
Online since: January 2015
Authors: Roman Zelchan, Vladimir Chernov, Tatiana Kravchuk, Dmitriy Podoplekin, Victor Goldberg
After administration of doxorubicin 40% of patients had a significant reduction in LVEF.
Statistical processing of the obtained data was performed using the STATISTICA software package.
After the administration of doxorubicin, in addition to a reduction in the ejection fraction from 65.5+9.8 to 61.8+7.2 (р<0.05) in the control group, there was a significant increase in the end-systolic volume of the left ventricle (from 30.8 ± 16.7 ml and 34.2 ± 17.0 ml, p <0.05), and the reduction in the maximum expulsion rate (3.2 ± 0.8 with EDV/s to 2.4 ± 0.5 EDV/s, p <0.05), which indicates the appearance of systolic cardiac dysfunction.
Individual analysis of the ECG-PSM data showed that there was a significant (10% or more from the original) decrease in left ventricular ejection fraction in 10 of 32 patients (31%) in response to doxorubicin in the dose of 50 mg/m2 after prophylactic application of trimethylhydrasine propionate, which is 22.5% less than in the control group.
The insufficiently frequent use of dexrazoxane may be related to the published data about its negative impact on the antitumor activity of anthracycline antibiotics [6].
Statistical processing of the obtained data was performed using the STATISTICA software package.
After the administration of doxorubicin, in addition to a reduction in the ejection fraction from 65.5+9.8 to 61.8+7.2 (р<0.05) in the control group, there was a significant increase in the end-systolic volume of the left ventricle (from 30.8 ± 16.7 ml and 34.2 ± 17.0 ml, p <0.05), and the reduction in the maximum expulsion rate (3.2 ± 0.8 with EDV/s to 2.4 ± 0.5 EDV/s, p <0.05), which indicates the appearance of systolic cardiac dysfunction.
Individual analysis of the ECG-PSM data showed that there was a significant (10% or more from the original) decrease in left ventricular ejection fraction in 10 of 32 patients (31%) in response to doxorubicin in the dose of 50 mg/m2 after prophylactic application of trimethylhydrasine propionate, which is 22.5% less than in the control group.
The insufficiently frequent use of dexrazoxane may be related to the published data about its negative impact on the antitumor activity of anthracycline antibiotics [6].
Online since: June 2013
Authors: Dedi Priadi, Johny Wahyuadi Soedarsono, Patuan Alfon, Sulistijono Sulistijono
The reduction in risk of corrosion is able to extend the inspection plan for several years.
σ0=σH=PD2(tm) (2) The minimum thickness, [tm] is the result of a reduction in nominal thickness, [t], or of thinning due to corrosion.
Corrosion Rate Threshold In Table 3 has been obtained the maximum of thinning due to corrosion with corresponding data from of each pipeline system considered.
The risk reduction method is denoted as a new strategy of inspection planning of pipeline system.
The reduction in risk of corrosion is able to extend the inspection plan for several years.
σ0=σH=PD2(tm) (2) The minimum thickness, [tm] is the result of a reduction in nominal thickness, [t], or of thinning due to corrosion.
Corrosion Rate Threshold In Table 3 has been obtained the maximum of thinning due to corrosion with corresponding data from of each pipeline system considered.
The risk reduction method is denoted as a new strategy of inspection planning of pipeline system.
The reduction in risk of corrosion is able to extend the inspection plan for several years.
The Challenges of Implementing Sustainable Production for One-Way Bottled Drinking Water in Thailand
Online since: September 2013
Authors: Pomthong Malakul, Dawan Wiwattnadej, Taksina Chaiittipornwong
Then, the collected data were analyzed, categorized and quantified with the twelve equations and the Rule of Three to the number and the percentage values of achievement in a total and in comparison.
Use common bottle-shape for reduction of pre-processing materials and downtime 8.
LCM is most common (42.46%) for the pollution reduction.
Reduction in landfill volume for solid waste management according to squeezed bottles 3.
Pollution Reduction.
Use common bottle-shape for reduction of pre-processing materials and downtime 8.
LCM is most common (42.46%) for the pollution reduction.
Reduction in landfill volume for solid waste management according to squeezed bottles 3.
Pollution Reduction.
Online since: February 2015
Authors: Liang Wang, Qiang Hua, J.F. Miazonzama
It is a linear dimensionality reduction algorithm.
The Locality Preserving Projection tries to overcome that problem by mapping the face data onto a low-dimensional face feature subspace called “Laplacianfaces”, which aims to preserve the local structure of the image space.
The idea of the back propagation is to reduce the error (difference between actual and expected results), until the ANN learns the training data.
ORL data base contains 400 grayscale images of 40 distinct subjects, 10 different images of each. 70% and 30% of images have been taken for training and testing the artificial neural network.
In the second case we only used 70%of data to train LPP.
The Locality Preserving Projection tries to overcome that problem by mapping the face data onto a low-dimensional face feature subspace called “Laplacianfaces”, which aims to preserve the local structure of the image space.
The idea of the back propagation is to reduce the error (difference between actual and expected results), until the ANN learns the training data.
ORL data base contains 400 grayscale images of 40 distinct subjects, 10 different images of each. 70% and 30% of images have been taken for training and testing the artificial neural network.
In the second case we only used 70%of data to train LPP.