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Online since: May 2011
Authors: Ru Bin Tan, Wen Min Shi, Zhen Fei Liang, Long Tan, Yi Min Dai
The polylol reduction method was then adopted to prepare the cuprous oxide and activated carbon composite material.
This paper take on the polylol reduction method in activated materials, join the filter parts of tobacco, studies the behaviors that activated carbon/cuprous oxide to degradation HCN.
SEM analysis of samples In order to investigate the distribution of Cu2O on the activated carbon, scanning tunneling microscope was used to analyze Cu2O/AC which was synthesized via polylol reduction method,the results were shown in Figure 1.
The data in Table 2 indicated that the concentration of hydrogen cyanide in the smoke which showed composite activated carbon in the filter has a certain absorption capacity, however, the performance could be improved.
(a) (b) (c) Figure 4 SEM of products under different stirring time: (a) 3 h, (b) 5 h, (c) 7 h Conclusions By using polylol reduction method, the composite compound of activated carbon/ cuprous oxide which cuprous oxide grain was evenly distributed on carbon would be successfully prepared.
This paper take on the polylol reduction method in activated materials, join the filter parts of tobacco, studies the behaviors that activated carbon/cuprous oxide to degradation HCN.
SEM analysis of samples In order to investigate the distribution of Cu2O on the activated carbon, scanning tunneling microscope was used to analyze Cu2O/AC which was synthesized via polylol reduction method,the results were shown in Figure 1.
The data in Table 2 indicated that the concentration of hydrogen cyanide in the smoke which showed composite activated carbon in the filter has a certain absorption capacity, however, the performance could be improved.
(a) (b) (c) Figure 4 SEM of products under different stirring time: (a) 3 h, (b) 5 h, (c) 7 h Conclusions By using polylol reduction method, the composite compound of activated carbon/ cuprous oxide which cuprous oxide grain was evenly distributed on carbon would be successfully prepared.
Online since: January 2012
Authors: Masoud Navazandeh Sajoudi, M.A Kazerooni Sadi, Arham Abdullah, M.F.M. Kamal, Fatemeh Torshizi, R Taherkhani
When reduction and reuse become difficult, recycling is desired.
Data Analysis Reliability Test The purpose of the reliability test is to prove the instrument is reliable.
Figure 1: Type of Projects According to Figure 1, the majority of respondent came from housing projects which contribute 47 percent of the data or 19 respondents.
Commercial projects came in second contributing 23 percent of the data or 9 respondents.
Analysis of Relationship between The 4R’ Techniques and Waste Produced on Sites In this analysis, the correlation method is used as a tool to analyze the data.
Data Analysis Reliability Test The purpose of the reliability test is to prove the instrument is reliable.
Figure 1: Type of Projects According to Figure 1, the majority of respondent came from housing projects which contribute 47 percent of the data or 19 respondents.
Commercial projects came in second contributing 23 percent of the data or 9 respondents.
Analysis of Relationship between The 4R’ Techniques and Waste Produced on Sites In this analysis, the correlation method is used as a tool to analyze the data.
Online since: November 2009
Authors: Viktor Varyukhin, Sergey Synkov, O. Prokof'eva, R. Kulagin, Yan Beygelzimer
It is shown that for ultrafine grained materials obtained with severe plastic deformation
methods, the value of elongation up to fracture fδ does not determine ductility, while the reduction
of area up to fracture ψ does determine it.
In material science, ductility of coarse-grained materials is estimated using elongation fδ and reduction of area ψ of a specimen in tension up to fracture.
In the first approximation, using the data in [7], we get the following relation: 55.02 0ln 2 = n n n D D R D
(17) Comparing the Eq. 17 and Eq. 13 shows that neck formation and a subsequent reduction of its smallest cross-section diameter lead to the growth of stress triaxiality and damage intensity.
Reduction of area for commercial pure titanium as a function of the von Mises strain during TE a b C Fig. 5.
In material science, ductility of coarse-grained materials is estimated using elongation fδ and reduction of area ψ of a specimen in tension up to fracture.
In the first approximation, using the data in [7], we get the following relation: 55.02 0ln 2 = n n n D D R D
(17) Comparing the Eq. 17 and Eq. 13 shows that neck formation and a subsequent reduction of its smallest cross-section diameter lead to the growth of stress triaxiality and damage intensity.
Reduction of area for commercial pure titanium as a function of the von Mises strain during TE a b C Fig. 5.
Online since: September 2013
Authors: Liang Yang, Jia Rong Li
Introduction
Mechanical property data of high temperature structural materials and mechanical behavior are important bases for material selection, structural integrity evaluation and life prediction of aircraft engines.
With the development of structural strength design of aircraft engines, the demand range for materials performance data used for aircraft engine design is consistently expanding, which requires in-depth studies of materials mechanical behavior and improvement in materials mechanical properties used in aircraft engine design.
The present data of stress rupture properties of single crystal superalloy were obtained through standard cylindrically specimen.
With the reduction of the section size of thin-walled specimens, the stress rupture lives of DD6 alloy decrease slightly.
All the data is smaller than 1, suggesting that the stress rupture lives of thin-walled specimens do not reach that of the standard cylindrically specimen, i.e., thin-walled debit exists in the machined thin-walled slab specimens of DD6 single crystal superalloy.
With the development of structural strength design of aircraft engines, the demand range for materials performance data used for aircraft engine design is consistently expanding, which requires in-depth studies of materials mechanical behavior and improvement in materials mechanical properties used in aircraft engine design.
The present data of stress rupture properties of single crystal superalloy were obtained through standard cylindrically specimen.
With the reduction of the section size of thin-walled specimens, the stress rupture lives of DD6 alloy decrease slightly.
All the data is smaller than 1, suggesting that the stress rupture lives of thin-walled specimens do not reach that of the standard cylindrically specimen, i.e., thin-walled debit exists in the machined thin-walled slab specimens of DD6 single crystal superalloy.
Online since: July 2007
Authors: Manuel Lai, R Brun
Introduction
Vehicle weight reduction, cost saving and improved crashworthiness are the main driving forces
behind material selection for automotive applications.
Thus, UHSS retains its advantages for weight reduction in welded joints.
In the common practice the simulation of problems involving geometric and dimensional tolerances presents many approximations that make the obtained results considerably different from the experimental data.
Lai - New perspectives for the reduction of dimensional problems in automotive assemblies - 8 th Florence ATA Congress - 2003
Lai et al., 'Weight reduction in automotive applications by using high strength steels: the challenge of a competitive manufacturing', Trans.
Thus, UHSS retains its advantages for weight reduction in welded joints.
In the common practice the simulation of problems involving geometric and dimensional tolerances presents many approximations that make the obtained results considerably different from the experimental data.
Lai - New perspectives for the reduction of dimensional problems in automotive assemblies - 8 th Florence ATA Congress - 2003
Lai et al., 'Weight reduction in automotive applications by using high strength steels: the challenge of a competitive manufacturing', Trans.
Online since: January 2013
Authors: Rustam Puteh, Zainal Abidin Ali, W.Ahliah Ismail
The growth technique uses a modified carbothermal reduction at 900 °C to produce ZnO nanowires.
It employs reduction of the oxide material by carbon at certain temperature and transport the vapor to the substrates placed at the upstream of the tube furnace by carrier gas.
A computer with suitable software and program interface handled all controls and data acquisition.
Rapid mass production of ZnO nanowires by a modified carbothermal reduction method.
Investigation of Nucleation Mechanism and Tapering Observed in ZnO Nanowire Growth by Carbothermal Reduction Technique.
It employs reduction of the oxide material by carbon at certain temperature and transport the vapor to the substrates placed at the upstream of the tube furnace by carrier gas.
A computer with suitable software and program interface handled all controls and data acquisition.
Rapid mass production of ZnO nanowires by a modified carbothermal reduction method.
Investigation of Nucleation Mechanism and Tapering Observed in ZnO Nanowire Growth by Carbothermal Reduction Technique.
Online since: January 2013
Authors: Chao He Chen, Shi Lun Zhao, Yue Qin Liu
The ship form optimization of 62-feet yacht in this paper is changing the shape of knuckle lines properly based on the experienced method out of statistical data.
According to statistical data, the biggest width of high speed stepless planing hull lies in 40%L from stem[3].
The shape narrows gradually to the stern which results in the reduction of volume.
Taking the used space into consideration, option 1 got a 2.1% reduction of total resistance while the option 2 got 5.9%.Giving a 8.7% reduction of total resistance ,option 3 performs the best ,but it costs the used space and is not satisfactory on body shape.
Using experienced method based on statistical data , this paper presents an example for improving the performance of resistance.
According to statistical data, the biggest width of high speed stepless planing hull lies in 40%L from stem[3].
The shape narrows gradually to the stern which results in the reduction of volume.
Taking the used space into consideration, option 1 got a 2.1% reduction of total resistance while the option 2 got 5.9%.Giving a 8.7% reduction of total resistance ,option 3 performs the best ,but it costs the used space and is not satisfactory on body shape.
Using experienced method based on statistical data , this paper presents an example for improving the performance of resistance.
Online since: July 2012
Authors: Dao Xin Wu, Chang Bin Xia, Chun Hua Liu
This showed that in acidic pH conditions the thermodynamic driving force for metal reduction is significantly low.At pH 4, the values of reduction increased to 63.1 %.
For pH 7, 8,9 and 10, the percentage reduction further increased to 95.2%, 93.1% 88.6%and 80.2%, respectively.
The complexation of copper with citric acid,favored the reduction of copper due to decreased electron hole recombination.
It is reported[5] that the reductions of Cu(II,I), Cu(I,0) and Cu(II) couples are more favorable with increasing pH.
A large number of experiments show that TiO2 all have the same maximum resources quantity, the largest in the data, catalytic efficiency increases, and increase with the data big, than the largest after data, catalytic efficiency has slightly lower, this is mainly because of the suspension of TiO2 incident light to cover.
For pH 7, 8,9 and 10, the percentage reduction further increased to 95.2%, 93.1% 88.6%and 80.2%, respectively.
The complexation of copper with citric acid,favored the reduction of copper due to decreased electron hole recombination.
It is reported[5] that the reductions of Cu(II,I), Cu(I,0) and Cu(II) couples are more favorable with increasing pH.
A large number of experiments show that TiO2 all have the same maximum resources quantity, the largest in the data, catalytic efficiency increases, and increase with the data big, than the largest after data, catalytic efficiency has slightly lower, this is mainly because of the suspension of TiO2 incident light to cover.
Online since: October 2012
Authors: Hua Shen, Yang Zhang, Guo Shun Zhou
Experimental
Data Set.
This data has been cleaned up – users who had less than 20 ratings or did not have complete demographic information were removed from this data set.
The data sets u1.base and u1.test through u5.base and u5.test are 80%/20% splits of the full data into training and test data.
Using the training data set we generate predictions by using different model sizes.
However, recommender systems are being stressed by the huge volume of user data in existing enterprise databases, and will be stressed even more by the increasing volume of user data available on the Web.
This data has been cleaned up – users who had less than 20 ratings or did not have complete demographic information were removed from this data set.
The data sets u1.base and u1.test through u5.base and u5.test are 80%/20% splits of the full data into training and test data.
Using the training data set we generate predictions by using different model sizes.
However, recommender systems are being stressed by the huge volume of user data in existing enterprise databases, and will be stressed even more by the increasing volume of user data available on the Web.
Online since: January 2010
Authors: Marcelo F.S.F. de Moura, A.M.G. Pinto, Raul D.S.G. Campilho, Dimitra A. Ramantani
The value of GIIc was extracted by a new
data reduction scheme avoiding the crack length measurement, named Compliance-Based Beam
Method (CBBM).
In this work, the interlaminar GIIc of a CFRP laminate is obtained by a new data reduction scheme not requiring the crack length measurement (CBBM).
Moreover, it accounts for the FPZ effects, which does not occur when a real crack length is used in the data reduction scheme.
Ex=1.09E+05 MPa xy=0.342 Gxy=4315 MPa Ey=8819 MPa xz=0.342 Gxz=4315 MPa Ez=8819 MPa yz=0.380 Gyz=3200 MPa Data reduction schemes The classical data reduction schemes to obtain GIIc are usually based on compliance calibration or beam theory.
A new data reduction scheme based on the crack equivalent concept was employed to obtain the interlaminar fracture toughness of a carbon-epoxy laminate in pure mode II.
In this work, the interlaminar GIIc of a CFRP laminate is obtained by a new data reduction scheme not requiring the crack length measurement (CBBM).
Moreover, it accounts for the FPZ effects, which does not occur when a real crack length is used in the data reduction scheme.
Ex=1.09E+05 MPa xy=0.342 Gxy=4315 MPa Ey=8819 MPa xz=0.342 Gxz=4315 MPa Ez=8819 MPa yz=0.380 Gyz=3200 MPa Data reduction schemes The classical data reduction schemes to obtain GIIc are usually based on compliance calibration or beam theory.
A new data reduction scheme based on the crack equivalent concept was employed to obtain the interlaminar fracture toughness of a carbon-epoxy laminate in pure mode II.