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Online since: January 2013
Authors: Ya Qing Jiang, Jun Yang, Yun Chen
Accordingly, a late strength reduction of cellular concrete made of CSA cement always takes place.
Whereas, longer mixing time (more than 8 second) is also harmful for a reduction of strength may occur.
DTG data of CCP powder Table 1 Properties of CCP Dry density [kg/m3] Strength [MPa] Thermal conductivity [W/(m×K)] Dry shrinkage [mm/m] Water absorption [%] Compressive Tensile 226 0.6 0.15 0.056 0.42 7.6 Hydrates of blended cement.
DTG data shown in Fig. 3. give another evidence that calcite exists freely in hardened blended cement.
Whereas, longer mixing time (more than 8 second) is also harmful for a reduction of strength may occur.
DTG data of CCP powder Table 1 Properties of CCP Dry density [kg/m3] Strength [MPa] Thermal conductivity [W/(m×K)] Dry shrinkage [mm/m] Water absorption [%] Compressive Tensile 226 0.6 0.15 0.056 0.42 7.6 Hydrates of blended cement.
DTG data shown in Fig. 3. give another evidence that calcite exists freely in hardened blended cement.
Online since: December 2014
Authors: Leandro Koji Kayano, Daniel Murusawa, Gilda Maria Cortez Pereira, Alfeu Saraiva Ramos
Based on the crystallographic data from the JCPDS files [11], the Powdercell computer program [12] was used to index the phases formed in Ni-48Ti-2Sn samples during ball milling and hot pressing.
Fig. 2 shows the XRD patterns of Ni-45Ti-5Sn powders showing the reduction on the major NiTi peak after different milling times: (a) 300, (b) 420, and (c) 600 min.
Fig. 2 - XRD patterns of Ni-45Ti-5Sn powders showing the reduction on the major NiTi peak after different milling times: (a) 300, (b) 420, and (c) 600 min.
Swarthmore, Pennsylvania: JCPDS/International Centre for Diffraction Data, 1988
Fig. 2 shows the XRD patterns of Ni-45Ti-5Sn powders showing the reduction on the major NiTi peak after different milling times: (a) 300, (b) 420, and (c) 600 min.
Fig. 2 - XRD patterns of Ni-45Ti-5Sn powders showing the reduction on the major NiTi peak after different milling times: (a) 300, (b) 420, and (c) 600 min.
Swarthmore, Pennsylvania: JCPDS/International Centre for Diffraction Data, 1988
Online since: October 2011
Authors: Feng He, Peng Cheng Fu, Chun Ming Xu
These bacteria were chosen based on a preliminary screening (data not shown) that demonstrated their ability to grow well at a range of higher temperatures and acidity levels, salinity levels.
Given that the fluctuation of the quantity and quality of wastewater is very large at the actual treatment operation, this tank appeared to be necessary at the design stage, and was proven to be effective in subsequent experiments (data not shown).
Because of the gradual reduction of the concentrations of organic compounds in the wastewater, the characteristics of the biofacies of the two stages of this tank differ.
Table 1 Results of the treatment of the wastewater generated by the production of heavy crude oil parameter Before treatment After treatment Reduction(%) Oil content (mg/L) 25.9 5.0 80.6 TSS (mg/L) 110 10 90.9 Sulfides (mg/L) 2.6 0 100.0 CODcr (mg/L) 362 91 74.8 Volatile phenols (mg/·L) 0.37 0 100.0 After the anaerobic and aerobic biological treatments, the fixed-film bioreactors with a 15-h hydraulic retention time (HRT) reduced COD by 74.8%, TSS by 90.9%,oil by 80.6%, and phenols and sulfides by 100%.
Given that the fluctuation of the quantity and quality of wastewater is very large at the actual treatment operation, this tank appeared to be necessary at the design stage, and was proven to be effective in subsequent experiments (data not shown).
Because of the gradual reduction of the concentrations of organic compounds in the wastewater, the characteristics of the biofacies of the two stages of this tank differ.
Table 1 Results of the treatment of the wastewater generated by the production of heavy crude oil parameter Before treatment After treatment Reduction(%) Oil content (mg/L) 25.9 5.0 80.6 TSS (mg/L) 110 10 90.9 Sulfides (mg/L) 2.6 0 100.0 CODcr (mg/L) 362 91 74.8 Volatile phenols (mg/·L) 0.37 0 100.0 After the anaerobic and aerobic biological treatments, the fixed-film bioreactors with a 15-h hydraulic retention time (HRT) reduced COD by 74.8%, TSS by 90.9%,oil by 80.6%, and phenols and sulfides by 100%.
Online since: April 2008
Authors: Gerhard Wilde
However, for the smallest grain
size of about 10 nm, our data show a significant decrease in hardness, which would be consistent
with the inverse Hall-Petch effect.
XRD patterns obtained from a sample after various thickness reductions are shown in Fig. 13.
Thus, forced mixing due to shear and due to friction at the interfaces as well as the reduction of the free enthalpy due to a reduction of interfaces upon alloy formation should lead to early mixing, that is the formation of solid solutions at small numbers of rolling passes.
The data clearly show a shift of the lattice parameters of the two constituents with a more pronounced shift for the Cu-rich solid solution, as to be expected since it is known that Ni diffuses extremely rapidly into Cu while Cu shows conventional diffusion behaviour in Ni [51), pp. 193-198.].
Read, Diffusion Rate Data and Mass Transport Phenomena for Copper Systems, International Copper Research Association, NIST, Washington, USA, 1977
XRD patterns obtained from a sample after various thickness reductions are shown in Fig. 13.
Thus, forced mixing due to shear and due to friction at the interfaces as well as the reduction of the free enthalpy due to a reduction of interfaces upon alloy formation should lead to early mixing, that is the formation of solid solutions at small numbers of rolling passes.
The data clearly show a shift of the lattice parameters of the two constituents with a more pronounced shift for the Cu-rich solid solution, as to be expected since it is known that Ni diffuses extremely rapidly into Cu while Cu shows conventional diffusion behaviour in Ni [51), pp. 193-198.].
Read, Diffusion Rate Data and Mass Transport Phenomena for Copper Systems, International Copper Research Association, NIST, Washington, USA, 1977
Online since: July 2024
Authors: Muhammad Amirul Ikmal, Ramizah Rozaimay, Tuan Zaharinie, Tadashi Ariga
The decreasing shear strength value was observed with differences in structural data of porous Ni due to the softening after the brazing process.
1 Introduction
In research development, especially in electronic areas, improving or enhancing electronic parts can be done by identifying the materials used.
Each parameter was tested with at least three (3) specimens to guarantee the data's validity.
Brazing filler metal Element compositions (wt. %) Cu Sn Ni P Cr Si VZ2250 77.4 9.3 7.0 6.3 - - MBF67 - - 64.5 6.0 25.0 1.5 Data obtained from VACUUMSCHMELZE and Metglass [18, 19].
Materials Temperature (°C) Melting oint Solidus Liquidus Cu base 1083 - - SS304 base 1450 - - Porous Ni 1455 - - VZ2250 - 600 630 MBF67 - 890 970 Data obtained from VACUUMSCHMELZE and Metglass [18, 19]. 3 Results and Discussion 3.1 Analysis of Porous Ni after Brazing Porous Ni was successfully joined with the base metals after the brazing process.
Besides, MBF67 brazing filler metal enhances its ability to increase corrosion resistance due to the reduction in boron composition (brazing filler metal composition).
Each parameter was tested with at least three (3) specimens to guarantee the data's validity.
Brazing filler metal Element compositions (wt. %) Cu Sn Ni P Cr Si VZ2250 77.4 9.3 7.0 6.3 - - MBF67 - - 64.5 6.0 25.0 1.5 Data obtained from VACUUMSCHMELZE and Metglass [18, 19].
Materials Temperature (°C) Melting oint Solidus Liquidus Cu base 1083 - - SS304 base 1450 - - Porous Ni 1455 - - VZ2250 - 600 630 MBF67 - 890 970 Data obtained from VACUUMSCHMELZE and Metglass [18, 19]. 3 Results and Discussion 3.1 Analysis of Porous Ni after Brazing Porous Ni was successfully joined with the base metals after the brazing process.
Besides, MBF67 brazing filler metal enhances its ability to increase corrosion resistance due to the reduction in boron composition (brazing filler metal composition).
Online since: April 2016
Authors: Ionuţ Gabriel Ghionea, Saša Ćuković, Adrian Lucian Ghionea
The authors propose some considerations related to machining, choice of cutting tools, cutting depths, working mode parameters, reduction of the machining and auxiliary times, etc.
The CAM simulation results provide many useful, tabular data that highlight the options to choose optimal machining variants.
The data obtained from CAM simulation must comply to the working possibilities of the chosen machine tool, availability of the necessary cutting tools, qualified personnel for the machine operation and adjustment, clamping and control devices, supply of stock parts, storage spaces, etc.
Data of the simulation process Srf. no./ fig.
Table 1 contains important data resulted from the simulation process.
The CAM simulation results provide many useful, tabular data that highlight the options to choose optimal machining variants.
The data obtained from CAM simulation must comply to the working possibilities of the chosen machine tool, availability of the necessary cutting tools, qualified personnel for the machine operation and adjustment, clamping and control devices, supply of stock parts, storage spaces, etc.
Data of the simulation process Srf. no./ fig.
Table 1 contains important data resulted from the simulation process.
Online since: October 2013
Authors: Shou Fang Liang, Bin Hu, Lei Zhang, Song Ling Wang
The flow field data were applied on the blades by interpolation.
The flow field data were applied on the surfaces of the blades through interpolation.
After loading the aerodynamics force, the maximum equivalent stress decrease, the reduction is about 4.5%.
The flow field data were applied on the surfaces of the blades through interpolation.
After loading the aerodynamics force, the maximum equivalent stress decrease, the reduction is about 4.5%.
Online since: August 2013
Authors: Rui Jun Liu, Bo Huang
With the help of ADINA finite element analysis software, this paper imitates related data in elastic theory about the excavation of tunnels with the typical planes of fracture which are under the same geology condition.
The model which has divided the grid density The construction process simulation.The process of Tunnel construction can reduction to excavation and support, and each process has it’s time effect, which need to use Element Birth and Death function Each unit has its own life time, the default time is 0, it’s stand that when the time is 0 ,the unit born and will be always exist . simulate the excavation process and supporting process by changing the life and death time of the units.
According to specific engineering, if we want to calculate the initial ground stress ,should according to the in situ test data and the actual parameters of surrounding rock References [1] Yu Xueyi, Yao Yuchun, Huang Qingxiang: The shape optimization design of the underground cavern[J] (Journal of xi 'an Institute of Technology,2002.3).In Chinese
The model which has divided the grid density The construction process simulation.The process of Tunnel construction can reduction to excavation and support, and each process has it’s time effect, which need to use Element Birth and Death function Each unit has its own life time, the default time is 0, it’s stand that when the time is 0 ,the unit born and will be always exist . simulate the excavation process and supporting process by changing the life and death time of the units.
According to specific engineering, if we want to calculate the initial ground stress ,should according to the in situ test data and the actual parameters of surrounding rock References [1] Yu Xueyi, Yao Yuchun, Huang Qingxiang: The shape optimization design of the underground cavern[J] (Journal of xi 'an Institute of Technology,2002.3).In Chinese
Online since: March 2017
Authors: Wara Dyah Pita Rengga, Sri Wahyuni, Agung Feinnudin
The experimental data was fitted with Langmuir model and fit well with the adsorption capacity of 91-110 mg/g.
Furthermore nanosilver synthesized was conducted with reduction process.
The experimental data was fitted well with Langmuir model.
Furthermore nanosilver synthesized was conducted with reduction process.
The experimental data was fitted well with Langmuir model.
Online since: November 2011
Authors: Cheng Han Wu, Hsiao Lan Lin, Weng Sing Hwang
Though analyzing the data of simulation results, the mathematical relation between interfacial heat transfer coefficient and potential and kinetic energy shows the trend of direct proportion.
Introduction The developments of electronic packaging technologies are driven by the need of automation, miniaturization, reduction in cost and environmental impact.
The data of this mesh from simulation results were taken to analyze the relation of interfacial heat transfer coefficient.
By analyzing the data of simulation, the potential energy and kinetic energy suffered on the substrate is proportional to the value of interfacial heat transfer coefficient.
Introduction The developments of electronic packaging technologies are driven by the need of automation, miniaturization, reduction in cost and environmental impact.
The data of this mesh from simulation results were taken to analyze the relation of interfacial heat transfer coefficient.
By analyzing the data of simulation, the potential energy and kinetic energy suffered on the substrate is proportional to the value of interfacial heat transfer coefficient.