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Online since: April 2013
Authors: Eun Gu Kwak, Choul Ho Lee, Seung Kye Lee, Jin Man Kim
Although it is necessary to reduce the quantity of resin used in order to improve price competitiveness and volume stability, reduction in the quantity of resin will lower the fluidity and workability due to reduction in the quantity of fluid material.
However, the measure data illustrate that there is almost no difference in the densities of the 3 sections, and, on the contrary, there were cases in which the upper section had higher density, thereby it can be deduced that the segregation of material almost does not occur due to usage of spherical steel slag aggregates.
The number upper the line show the standard deviation of three specimen Air curing (28 day) Heat curing (3 day) Air curing (7 day) Fig. 6 Compressive strength according to Fig. 7 Alkaline test according to replacement ratio of SSS replacement ratio of SSS Effect of resin reduction by using spherical steel slag(Series II) Vebe test.
Fig.9 displays the reduction effect of polymer resin on the compression strength when spherical steel slag is used.
However, the measure data illustrate that there is almost no difference in the densities of the 3 sections, and, on the contrary, there were cases in which the upper section had higher density, thereby it can be deduced that the segregation of material almost does not occur due to usage of spherical steel slag aggregates.
The number upper the line show the standard deviation of three specimen Air curing (28 day) Heat curing (3 day) Air curing (7 day) Fig. 6 Compressive strength according to Fig. 7 Alkaline test according to replacement ratio of SSS replacement ratio of SSS Effect of resin reduction by using spherical steel slag(Series II) Vebe test.
Fig.9 displays the reduction effect of polymer resin on the compression strength when spherical steel slag is used.
Online since: April 2012
Authors: W. Bevis Hutchinson
Two types of industrial process are used, either with a large single cold reduction (SCR) or double cold reductions including an intermediate anneal (DCR).
Some 20000 point measurements were made on grids having 10mm spacing and these data were converted to orientation distribution functions (ODFs) using Gaussian functions having 3º spreads.
Naturally, the condition for such break-away is dependent on the reduction of particle pinning by dissolution or coarsening of the inhibiting particles.
It is not certain whether this condition relates to a local reduction in the Zener pinning or to a solid state wetting condition.
Some 20000 point measurements were made on grids having 10mm spacing and these data were converted to orientation distribution functions (ODFs) using Gaussian functions having 3º spreads.
Naturally, the condition for such break-away is dependent on the reduction of particle pinning by dissolution or coarsening of the inhibiting particles.
It is not certain whether this condition relates to a local reduction in the Zener pinning or to a solid state wetting condition.
Online since: April 2009
Authors: V. Rajendran
There are many methods such as sol-gel [1-4], solid state reaction [5], hydrothermal [6],
microwave [7], reverse micelles [8], spray pyrolysis [9], ball milling [10], ultrasonication [11],
chemical reduction [12], chemical and physical vapour depositions [13] are available to prepare the
nano structured materials for various potential industrial applications.
From the XRD data, the alumina nano powder synthesised from bauxite shows the presence of α and K-alumina phases at two different calcination temperatures.
Table 1 Percentage of antibacterial reduction for nano silica coated fabrics * Colony Forming Unit The hydroxyapatite, a major mineral component of the calcified tissues has been prepared in nanometer range.
The nano HAp powder has been extensively Sample Staphylococcus aureus Escherichia coli Mean values of CFU * Antibacterial reduction % Mean values of CFU * Antibacterial reduction % Initial 18 - 98 - After treatment 14 22 % 83 15 % Fig. 5 XRD Pattern of HAp nano powder (a) pH = 10, (b) pH = 11 10 20 30 40 50 60 70 80 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 Ammonium nitrate . . . . .
From the XRD data, the alumina nano powder synthesised from bauxite shows the presence of α and K-alumina phases at two different calcination temperatures.
Table 1 Percentage of antibacterial reduction for nano silica coated fabrics * Colony Forming Unit The hydroxyapatite, a major mineral component of the calcified tissues has been prepared in nanometer range.
The nano HAp powder has been extensively Sample Staphylococcus aureus Escherichia coli Mean values of CFU * Antibacterial reduction % Mean values of CFU * Antibacterial reduction % Initial 18 - 98 - After treatment 14 22 % 83 15 % Fig. 5 XRD Pattern of HAp nano powder (a) pH = 10, (b) pH = 11 10 20 30 40 50 60 70 80 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 Ammonium nitrate . . . . .
Online since: March 2007
Authors: David Wilkinson
Next generation advances in
fuel cell technology are required to close many of the significant technology gaps that exist today in
the areas of performance, reliability, durability, operational flexibility and cost reduction.
The main benefits today for fuel cells are societal and include low emissions, energy efficiency, CO2 reduction, fuel flexibility and energy security, etc, which the customer is not necessarily willing to pay for.
The combination of model and measurement method can result in better process control for reliable high volume production The integration and / or elimination of components and function in fuel cell systems can have significant advantages for power density, reduction in part number, increased reliability, improved manufacturing assembly and cost reduction, etc.
Wilkinson, Interface (The Electrochemistry Society), Vol. 10, No. 1, (Spring 2001), p.20 [2] Canadian Fuel Cell Commercialization Roadmap, March 2003, http://strategic.ic.gc.ca/electrical [3] California Fuel Cell Partnership, http://www.fuelcellpartnership.org [4] http://www.toshiba.co.jp/about/press/2004_06/pr2401.htm [5] Data from "Fuel Cell Industry Competitive Analysis - Assessment of Major Players, Global Markets, and Technologies" 2003 Allied Business Intelligence Inc., Courtesy Industry Canada [6] Ballard Power Systems, Inc., 2004 Annual Report, www.ballard.com [7] D.P.
The main benefits today for fuel cells are societal and include low emissions, energy efficiency, CO2 reduction, fuel flexibility and energy security, etc, which the customer is not necessarily willing to pay for.
The combination of model and measurement method can result in better process control for reliable high volume production The integration and / or elimination of components and function in fuel cell systems can have significant advantages for power density, reduction in part number, increased reliability, improved manufacturing assembly and cost reduction, etc.
Wilkinson, Interface (The Electrochemistry Society), Vol. 10, No. 1, (Spring 2001), p.20 [2] Canadian Fuel Cell Commercialization Roadmap, March 2003, http://strategic.ic.gc.ca/electrical [3] California Fuel Cell Partnership, http://www.fuelcellpartnership.org [4] http://www.toshiba.co.jp/about/press/2004_06/pr2401.htm [5] Data from "Fuel Cell Industry Competitive Analysis - Assessment of Major Players, Global Markets, and Technologies" 2003 Allied Business Intelligence Inc., Courtesy Industry Canada [6] Ballard Power Systems, Inc., 2004 Annual Report, www.ballard.com [7] D.P.
Online since: August 2013
Authors: Yong Xin Pan, Michael Short, Qiang Xu, Qi Hua Xu
Data on microstructural evolution during long-term exposure at the elevated temperatures and varying stress states and stress levels have been analyzed in this paper; the mechanical property and microstructure of the long-term serviced materials have also been investigated.
Firstly, tertiary creep might be attributed to the reduction of a load carrying cross-section as deformation process; this is associated with the effect of the true stress.
On the other hand, it might be due to the loss of the effective area on the grain scale; the build-up of cavities on grain boundaries will lead to the reduction of the load-carrying area, and increase of a local true stress at constant load.
A further study shows the creep failure is associated with ductility because the specimens presented the reduction area to be around ¾ of the cross-section under a high strength condition [11, 18-19].
With a high stress (90MPa) the specimens are fractured by the local necking following substantial elongations and reduction of cross-section area.
Firstly, tertiary creep might be attributed to the reduction of a load carrying cross-section as deformation process; this is associated with the effect of the true stress.
On the other hand, it might be due to the loss of the effective area on the grain scale; the build-up of cavities on grain boundaries will lead to the reduction of the load-carrying area, and increase of a local true stress at constant load.
A further study shows the creep failure is associated with ductility because the specimens presented the reduction area to be around ¾ of the cross-section under a high strength condition [11, 18-19].
With a high stress (90MPa) the specimens are fractured by the local necking following substantial elongations and reduction of cross-section area.
Online since: June 2020
Authors: Agnese Stunda-Zujeva
Our experiments show that, for example, microelement deficiency (concentration reduction by 75 %) results as decrease of yield and yellowing after two months of cultivation in semibatch mode [unpublished data].
Experiments on reducing NaHCO3 concentration in growth medium showed that there is no difference between 16.8 g·L-1 and 8 g·L-1, but reduction to 4 g·L-1 reduces the growth rate of Spirulina platensis ARM 730 [3].
Reduction of NaNO3 concentration from 2.5 g·L-1 to 1.5 g·L-1 and 1.0 g·L-1 reduced the growth rate [3].
Reduction in the level of CaCl2 to 0.02 g·L-1 or 0.01 g·L-1 reduced the growth significantly [3].
Experiments on reducing NaHCO3 concentration in growth medium showed that there is no difference between 16.8 g·L-1 and 8 g·L-1, but reduction to 4 g·L-1 reduces the growth rate of Spirulina platensis ARM 730 [3].
Reduction of NaNO3 concentration from 2.5 g·L-1 to 1.5 g·L-1 and 1.0 g·L-1 reduced the growth rate [3].
Reduction in the level of CaCl2 to 0.02 g·L-1 or 0.01 g·L-1 reduced the growth significantly [3].
Online since: November 2012
Authors: Yoshinori Sato, Fumika Andou, Yoshihiro Hagihara, Hiromasa Kato, Nobuhito Yoshihara, Hiroaki Okawai, Takatoshi Murase, Toshiro Iyama, Masahiro Mizuno, Shinya Tsukamoto, Naohiro Nishikawa, Takekazu Sawa
The excellent turbidity reduction effect is shown only by combination of electric rust prevention and simple circulation filter.
Furthermore, it achieved greatly reduction of turbid regardless of very small filter unit.
This knowledge is helpful for actual turbidity reduction unit development that needs maintenance free filtration.
This improved system indicates floating particle reduction remarkably from view point of turbidity, iron, colour, conductivity in 72 hours preservation model experiment.
Yamanaka, Cutting fluid and Grinding fluid, Saiwaishobo Co.Ltd., Japan, 1982, pp.244-264 [3] TECHNICAL RESEARCH INSTITUTE Japan Society for the Promotion of Machine Industry, Material Processing Data File Text Vol:15 (Grinding), TECHNICAL RESEARCH INSTITUTE Japan Society for the Promotion of Machine Industry, Japan, 2002, pp.32-33 [4] N.
Furthermore, it achieved greatly reduction of turbid regardless of very small filter unit.
This knowledge is helpful for actual turbidity reduction unit development that needs maintenance free filtration.
This improved system indicates floating particle reduction remarkably from view point of turbidity, iron, colour, conductivity in 72 hours preservation model experiment.
Yamanaka, Cutting fluid and Grinding fluid, Saiwaishobo Co.Ltd., Japan, 1982, pp.244-264 [3] TECHNICAL RESEARCH INSTITUTE Japan Society for the Promotion of Machine Industry, Material Processing Data File Text Vol:15 (Grinding), TECHNICAL RESEARCH INSTITUTE Japan Society for the Promotion of Machine Industry, Japan, 2002, pp.32-33 [4] N.
Online since: January 2020
Authors: Ahmed A. Ayash, Raouf Mahmood Raouf, Khalid Mershed Eweed
The reduction in air voids value with asphalt content, perhaps, is due to increasing the molecular impact.
It is expected that the existence of PP may lead to increasing some properties like viscosity, stiffness and hardness of the asphalt, which cause a reduction in the asphalt penetration and softening points in general.
However, despite the scatter in the data, one can judge that 9% of PP gives the best flow value over the studied range of PP.
Over the different percentages of PP, there is a clear reduction in air voids content of the modified asphalt in relation to the results without adding PP[23].
Interestingly, the results indicate that the presence of PP leads to a clear reduction in water absorption over the whole range of temperatures.
It is expected that the existence of PP may lead to increasing some properties like viscosity, stiffness and hardness of the asphalt, which cause a reduction in the asphalt penetration and softening points in general.
However, despite the scatter in the data, one can judge that 9% of PP gives the best flow value over the studied range of PP.
Over the different percentages of PP, there is a clear reduction in air voids content of the modified asphalt in relation to the results without adding PP[23].
Interestingly, the results indicate that the presence of PP leads to a clear reduction in water absorption over the whole range of temperatures.
Online since: February 2014
Authors: Chun Yan Diao, Jian Feng Li
Using urea as reducing agent Urea-SCR (urea selective catalytic reduction) system has been widely applied.
2) Diesel Particulate Filter (DPF): Diesel Particulate Filter (DPF) can reduce PM more than 85%, and can greatly reduce the emission of CO and HC.
3)Particle Oxidation Catalysis (POC): Particle Oxidation Catalysis (POC) can capture particles in diesel exhaust emissions, PM reduction efficiencies can be up to 30%~80%.
Applications of plasma techniques in purification outside machine include low-temperature plasma direct redox and low-temperature plasma-assisted catalytic reduction.
Low-temperature plasma-assisted selective catalytic reduction system can reduce NOx emissions.
Experimental data about China was Very few.
Applications of plasma techniques in purification outside machine include low-temperature plasma direct redox and low-temperature plasma-assisted catalytic reduction.
Low-temperature plasma-assisted selective catalytic reduction system can reduce NOx emissions.
Experimental data about China was Very few.
Online since: March 2014
Authors: Jean Christophe Leroux, Catherine Gardin, Soumaya Bradaï, Cédric Gourdin, Stephan Courtin
Meanwhile, few experimental data are available on austenitic stainless steels.
Hence this requires obtaining experimental data on the considered material with a equibiaxial strain tensor.
Unfortunately, for austenitic stainless steels used for power plants components, no experimental data are available concerning fatigue strength under multiaxial loadings.
Fig. 1 Optimized cross specimen used in [5] In order to obtain new fatigue strength data under multiaxial loading, biaxial test FABIME1 was developed at LISN.
The fig.7 shows the variation of the load imposed during this test, from the experimental data obtained by the Labview software.
Hence this requires obtaining experimental data on the considered material with a equibiaxial strain tensor.
Unfortunately, for austenitic stainless steels used for power plants components, no experimental data are available concerning fatigue strength under multiaxial loadings.
Fig. 1 Optimized cross specimen used in [5] In order to obtain new fatigue strength data under multiaxial loading, biaxial test FABIME1 was developed at LISN.
The fig.7 shows the variation of the load imposed during this test, from the experimental data obtained by the Labview software.