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Online since: October 2007
Authors: Won Yong Kim, Han Sol Kim
Some of samples were cold rolled to obtain a 2.0mm thickness sheet (a total reduction of
85%).
From the pole figure data obtained, the orientation distribution function (ODF) was computed using the formulation of Bunge [7].
Fig. 6 shows φ2=0° section and φ2=45° sections of the ODFs of β phase for the specimens with quenching (a), cold rolling reduction of 85% (b) and with recrystallization heat treatment at 1023K for 1.8ks (c) in Ti-26Nb-0.5Si alloy, respectively.
From the pole figure data obtained, the orientation distribution function (ODF) was computed using the formulation of Bunge [7].
Fig. 6 shows φ2=0° section and φ2=45° sections of the ODFs of β phase for the specimens with quenching (a), cold rolling reduction of 85% (b) and with recrystallization heat treatment at 1023K for 1.8ks (c) in Ti-26Nb-0.5Si alloy, respectively.
Online since: October 2004
Authors: Alain Jacques, M. Polcarová, J. Brádler, Pavel Lejček, Vaclav Paidar
Detailed analysis of experimental
data will be published elsewhere.
The main driving force acting on the moving grain boundary is due to reduction of the boundary energy via decreasing the boundary area.
It was found that a linear relationship holds between L and a for all measured boundary segments indicating that the migrating distance a is a good measure of the boundary area reduction.
The main driving force acting on the moving grain boundary is due to reduction of the boundary energy via decreasing the boundary area.
It was found that a linear relationship holds between L and a for all measured boundary segments indicating that the migrating distance a is a good measure of the boundary area reduction.
Online since: March 2010
Authors: Tong Min Yu, Hai Xin Bei, Ze Yu Yan, Hua Xu, Yu Wu, Bin Xu
Temperature
transducer
Capillary die
Data Acquisition
Temperature
transducer
System
Thin pads
Die holder Die holder
Gap
Fig.1 The schematic of experimental device
Experiment in the channels with the same aspect ratio
The barrel temperature is set at 220℃ and 240℃ respectively, the temperature rises with identical
aspect ratio of 16 are measured and represented in Fig.2.
Recently, several studies [10-11] have indicated that the reduction of melt viscosity within micro-channel becomes more significant when size of micro-channel decreases.
Therefore the shearing friction and viscous dissipation effect are weakened when the characteristic size of micro channel decreases, which contributes to the reduction of temperature rise at the same shear rate. 0 2 4 6 8 10 12 14 16 3000 4000 5000 6000 7000 8000 9000 10000 Apparent Sheart rate(s -1) Outlet temperature rise ( ℃ ) D=350µm,T=220℃ D=350µm,T=240℃ D=500µm,T=220℃ D=500µm,T=240℃ Fig.2 The outlet temperature rise curves of various diameters channels with the same aspect ratio Experiment in the channels with various aspect ratios The outlet temperature rises of various aspect ratios channels at different inlet temperatures are shown in Fig.3 and Fig.4.
Recently, several studies [10-11] have indicated that the reduction of melt viscosity within micro-channel becomes more significant when size of micro-channel decreases.
Therefore the shearing friction and viscous dissipation effect are weakened when the characteristic size of micro channel decreases, which contributes to the reduction of temperature rise at the same shear rate. 0 2 4 6 8 10 12 14 16 3000 4000 5000 6000 7000 8000 9000 10000 Apparent Sheart rate(s -1) Outlet temperature rise ( ℃ ) D=350µm,T=220℃ D=350µm,T=240℃ D=500µm,T=220℃ D=500µm,T=240℃ Fig.2 The outlet temperature rise curves of various diameters channels with the same aspect ratio Experiment in the channels with various aspect ratios The outlet temperature rises of various aspect ratios channels at different inlet temperatures are shown in Fig.3 and Fig.4.
Online since: October 2011
Authors: Ke Xin Bi, Hui Zi Ma, Wan Hong Li
Rogge(2010); Nordhaus, W. (2011); Zappa& Mariani(2011)
Energy saving and emission reduction regulation
Carbon emissions control
8
Exterior cooperation
Cooperation with universities
Cooperation with research institutions
Cooperation with agencies
Coopetition with other enterprises
9
Competition pressure
Carbon-supply market competition
Industry competitiveness
10
Green-tech market stato
Current low-carbon market development
Future technology development orientation
Organizational Context.
Government promotion policies and regulations like R&D promotion policies, energy saving and emission reduction regulation, carbon emissions control are exogenous determinants for green process innovation, governmental decisions provide a future-oriented direction in a macroscopic view, enterprises on compulsions are limited by government regulations are coerced to implement green technology & process.
Associated data is collected through questionnaires sent to professionals on innovation and executives in manufacturing enterprises.
Government promotion policies and regulations like R&D promotion policies, energy saving and emission reduction regulation, carbon emissions control are exogenous determinants for green process innovation, governmental decisions provide a future-oriented direction in a macroscopic view, enterprises on compulsions are limited by government regulations are coerced to implement green technology & process.
Associated data is collected through questionnaires sent to professionals on innovation and executives in manufacturing enterprises.
Online since: September 2013
Authors: Rui Feng Li, Shou Cheng He, Lu Cun Guo
During data analysis process, the Rohm of the sample at each temperature was subtracted to compare the Rp directly.
It indicated that the LBCO cathode with SDC interlayer exhibited the superior electrocatalytic activity for oxygen reduction reaction (ORR) and better electrochemical performance.
For example, the ASR value of LBCO cathode with SDC interlayer was 0.457 Ωcm2 at 800 °C, while the corresponding value for the LBCO cathode without SDC interlayer was 0.716 Ωcm2, resulting in about 36.2 % reduction.
It indicated that the LBCO cathode with SDC interlayer exhibited the superior electrocatalytic activity for oxygen reduction reaction (ORR) and better electrochemical performance.
For example, the ASR value of LBCO cathode with SDC interlayer was 0.457 Ωcm2 at 800 °C, while the corresponding value for the LBCO cathode without SDC interlayer was 0.716 Ωcm2, resulting in about 36.2 % reduction.
Online since: March 2015
Authors: Zhi Ping Li, Feng Peng Lai, Jun Jie Yi, Zhi Hao Yang
In high rank stage, the adsorption capacity of coal varies with inertinite content exhibit a positive correlation.③Reservoir permeability: raw coal reservoir permeability will affect the product rate of methane in condition of draining to reduce pressure, when the injection pressure is large enough so that the pressure is greater than coal when broken, the fracture of coal will further open and improve permeability.④Expansion of coal mechanism adsorption: coal volume expansion caused by injecting CO2 will reduced reservoir permeability, and permeability reduction has impacted on the effect of CO2-ECBM directly.⑤ The water cut of the coal reservoir effects: adsorption capacity of CO2 is weaker than water, the presence of water will reduce the chance of CO2 is adsorbed, thus affecting the CO2 -ECBM effect
However, our country lacks of saline aquifer geology data, it is not yet implemented saline aquifer storage.
Use of existing oil and gas reservoir to storage CO2 is considered to be the future direction of this technology, which is known as carbon dioxide enhanced oil recovery (CO2-EOR) technology, that is injecting co2 into reservoir to flood the oil, not only enhanced oil recovery, but also to achieve carbon storage, taking into account both economic and emission reduction benefits.
However, our country lacks of saline aquifer geology data, it is not yet implemented saline aquifer storage.
Use of existing oil and gas reservoir to storage CO2 is considered to be the future direction of this technology, which is known as carbon dioxide enhanced oil recovery (CO2-EOR) technology, that is injecting co2 into reservoir to flood the oil, not only enhanced oil recovery, but also to achieve carbon storage, taking into account both economic and emission reduction benefits.
Online since: April 2014
Authors: Wen Ting Yu, Jing Ling Wang, Long Ye
The algorithms and data structures are closely related, has good geometry, can well grasp the global features of the image.
They thought that the algorithm allows a low-dimensional image clustering with significant reduction of the computational complexity.
The proposed method offers a considerable reduction of computational complexity, because N-cut pre-segments the image into several regions.
They thought that the algorithm allows a low-dimensional image clustering with significant reduction of the computational complexity.
The proposed method offers a considerable reduction of computational complexity, because N-cut pre-segments the image into several regions.
Online since: September 2015
Authors: Olesia Mikhailova, Pavel Rovnaník
The addition of PPG and PEG 1000, 6000, 20000 resulted in reduction of compressive strength.
Therefore, it can be concluded that PEG has no effect on the reduction of microcracks.
This new phenomenon, however, cannot be explained just based on the mechanical data and microscopic observation and further analyses are needed.
Therefore, it can be concluded that PEG has no effect on the reduction of microcracks.
This new phenomenon, however, cannot be explained just based on the mechanical data and microscopic observation and further analyses are needed.
Online since: September 2007
Authors: Xun Cai, Zhen Guo Wang
It is generally believed that the driving force of
film agglomeration is the reduction of interface free energy [7].
XRD analysis exhibits that Ag/Ti bilayers are highly textured at Ag(111) and Ag(222)[9,16].Tepper et al concluded that Ti film in Ag/Ti system transforms from hcp to fcc structure for the free energy reduction and (0002) texture in hcp becomes (111) in fcc.
All these data demonstrate titanium has a favorable layer growth mode.
XRD analysis exhibits that Ag/Ti bilayers are highly textured at Ag(111) and Ag(222)[9,16].Tepper et al concluded that Ti film in Ag/Ti system transforms from hcp to fcc structure for the free energy reduction and (0002) texture in hcp becomes (111) in fcc.
All these data demonstrate titanium has a favorable layer growth mode.
Online since: July 2008
Authors: Mahmoud Nili-Ahmadabadi, S. Hossein Nedjad, H. Meidani
The reduction of excess surface energy is the driving force for such change in microstructure.
As the grains, even in early stages of deformation, are relatively spherical in shape it can be assumed that long-range diffusion between different particle sizes is the primary mechanism for reduction in surface energy and the short-range mass transport between surfaces of different curvature in the same particle is not significant.
Consequently, the coarsening process in the specimens should follow the LSW theory with n=3 and as it is observed in Fig. 5 the data well undergoes the LSW equation with n=3, and the regression parameter R=0.960 which is very close to 1.
As the grains, even in early stages of deformation, are relatively spherical in shape it can be assumed that long-range diffusion between different particle sizes is the primary mechanism for reduction in surface energy and the short-range mass transport between surfaces of different curvature in the same particle is not significant.
Consequently, the coarsening process in the specimens should follow the LSW theory with n=3 and as it is observed in Fig. 5 the data well undergoes the LSW equation with n=3, and the regression parameter R=0.960 which is very close to 1.