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Online since: July 2006
Authors: David J. Lloyd, Hai Ou Jin
A low solute content, a strain level reaching
84% thickness reduction, and a high roll-metal friction were found to facilitate continuous
recrystallization during low temperature annealing in conventionally cold rolled AA5754 and
AA5182 sheets [5].
They were fully annealed at 335- 350°C, then cold rolled by 90-97% reduction using a specific rolling mill.
For comparison, conventional rolling was performed in AA5083 with the same thickness reduction and annealing as that of ASR processed ones.
The EBSD data acquisition was carried out in a Phillips XL30S field emission gun (FEG) SEM, equipped with a Nordlys II detector.
The conventionally rolled sheet with the same thickness reduction underwent a similar microstructure development, and the grain size is only slightly coarser than the ASR processed one (Figure 12b).
They were fully annealed at 335- 350°C, then cold rolled by 90-97% reduction using a specific rolling mill.
For comparison, conventional rolling was performed in AA5083 with the same thickness reduction and annealing as that of ASR processed ones.
The EBSD data acquisition was carried out in a Phillips XL30S field emission gun (FEG) SEM, equipped with a Nordlys II detector.
The conventionally rolled sheet with the same thickness reduction underwent a similar microstructure development, and the grain size is only slightly coarser than the ASR processed one (Figure 12b).
Online since: February 2019
Authors: P. Khavanov, Alexandr Fomin, M.I. Kozhukhova
Based on literature data [18], hematite characterized by low chemical activity in the presence of lime and quartz, and only small portion of it is subjected to hydrolysis reaction, therefore it was used as a ferriferous mineral admixture in the amount of 2,5; 5 and 7,5% by weight to prepare binder mixtures.
Further increase of Fe2O3 portion in the binder system leads to the strength reduction.
An autoclave thermal curing for 8 hours that imitates industrial conditions allows to reach up to 43 MPa of compressive strength, however, the shorten of the thermal treatment up to 6 hours demonstrated a 7% of strength reduction. 3.3.
The XRD spectra demonstrated the reduction of intensity reflection for Рortlandite Ca(OH)2 and quartz SiO2 in comparison with the reference specimen, which indicates the activation of chemical interaction of the binder system during autoclave curing (Fig. 1).
The presence of gothite in the system contributes to the reduction of highly basic hydrosilicates [alfa]C2SH amount while the increase of the volume of 11Ǻ-tobermorite low-basic formations.
Further increase of Fe2O3 portion in the binder system leads to the strength reduction.
An autoclave thermal curing for 8 hours that imitates industrial conditions allows to reach up to 43 MPa of compressive strength, however, the shorten of the thermal treatment up to 6 hours demonstrated a 7% of strength reduction. 3.3.
The XRD spectra demonstrated the reduction of intensity reflection for Рortlandite Ca(OH)2 and quartz SiO2 in comparison with the reference specimen, which indicates the activation of chemical interaction of the binder system during autoclave curing (Fig. 1).
The presence of gothite in the system contributes to the reduction of highly basic hydrosilicates [alfa]C2SH amount while the increase of the volume of 11Ǻ-tobermorite low-basic formations.
Online since: August 2025
Authors: Luca Gardello, Manuela Galati, Giovanni Rizza, Luca Iuliano
The system's evolution is driven by free energy reduction.
However, the effect of mt and cGB is smaller than that of k, which seems to have a stronger effect due to the larger deviation from the mean of the data. cGB influences the neck radius in an opposite way with respect to mt and k.
In the current study and in [14] a reduction of cGB and a growth of k produces a growth of the neck radius.
This corresponds to a reduction of the porosity equal to 5% in the case of simulation without RBM and 10 % for simulation with RBM.
The densification of the structure and the reduction of porosity occur both when the RBM is neglected and when it is considered.
However, the effect of mt and cGB is smaller than that of k, which seems to have a stronger effect due to the larger deviation from the mean of the data. cGB influences the neck radius in an opposite way with respect to mt and k.
In the current study and in [14] a reduction of cGB and a growth of k produces a growth of the neck radius.
This corresponds to a reduction of the porosity equal to 5% in the case of simulation without RBM and 10 % for simulation with RBM.
The densification of the structure and the reduction of porosity occur both when the RBM is neglected and when it is considered.
Online since: June 2025
Authors: Anang Rustanto Suwito, Masayuki Hyodo, Muzamir Hasan, Muhammad Syamsul Imran Zaini
This reduction is attributed to the formation of calcium silicate hydrates (CSH) and calcium aluminate hydrates (CAH) from the reaction between the alumino-silicates in kaolinite clay and lime, which balances the ionic bonds and reduces cation exchange capacity.
The increase in OMC was proportionally limited due to a reduction in the thickness of the duplex layer, resulting in grain accumulation as sodium cations in the diffuse layer of kaolinite clay were replaced by silicon cations [1].
The reduction in MDD is directly influenced by the OMC.
The data indicates a gradual increase in compressive strength with higher CKSA and lime content over longer curing periods.
The study observed a substantial reduction in plasticity and a significant increase in the shrinkage limit (SL) of silica fume-stabilized soil (SFSS) when stabilized with lime, whereas CKSA stabilization showed a reduction in SL.
The increase in OMC was proportionally limited due to a reduction in the thickness of the duplex layer, resulting in grain accumulation as sodium cations in the diffuse layer of kaolinite clay were replaced by silicon cations [1].
The reduction in MDD is directly influenced by the OMC.
The data indicates a gradual increase in compressive strength with higher CKSA and lime content over longer curing periods.
The study observed a substantial reduction in plasticity and a significant increase in the shrinkage limit (SL) of silica fume-stabilized soil (SFSS) when stabilized with lime, whereas CKSA stabilization showed a reduction in SL.
Online since: November 2011
Authors: Hong Chun Shu, Ge Fei Qiu
So it can be concluded that the reduction of power loss of power system is consistent with enlargement of voltage stability margin.
Considering the reduction of reactive power loss is more obvious than that of active power loss, the reduction of reactive power loss illustrates the reduction of unnecessary power flow in power grid, so monitoring of reactive power loss is employed in this paper.
The CPF will stop until there is no more reduction of reactive power loss.
Modify the power flow data according to results listed in Tab.5, recalculate PV curve of loading buses and get the new loading limitations shown in Tab.6.
Considering the reduction of reactive power loss is more obvious than that of active power loss, the reduction of reactive power loss illustrates the reduction of unnecessary power flow in power grid, so monitoring of reactive power loss is employed in this paper.
The CPF will stop until there is no more reduction of reactive power loss.
Modify the power flow data according to results listed in Tab.5, recalculate PV curve of loading buses and get the new loading limitations shown in Tab.6.
Online since: December 2013
Authors: Bo Wang, Qiu Ping Zhou, Li Hong
Kissinger method was applied to obtain the kinetic parameters from the experimental data.
Among all current methods for disposing WPCBs, thermal process has attracted lots of attention because it’s the most quickly and easily way for the reduction of various wastes.
The experimental data can provide information on the order of reaction, the activation energy and other kinetic parameters which are necessary for the design of thermal equipment.
Moreover, Kissinger [7] method is applied to process the experimental data in order to obtain kinetic parameters which can be useful for the building of reaction model as well as the designing of equipment for the thermal treatment of waste printed circuit board.
The TG curves, DTG curves and corresponding data obtained from the experiments were exported by computers.
Among all current methods for disposing WPCBs, thermal process has attracted lots of attention because it’s the most quickly and easily way for the reduction of various wastes.
The experimental data can provide information on the order of reaction, the activation energy and other kinetic parameters which are necessary for the design of thermal equipment.
Moreover, Kissinger [7] method is applied to process the experimental data in order to obtain kinetic parameters which can be useful for the building of reaction model as well as the designing of equipment for the thermal treatment of waste printed circuit board.
The TG curves, DTG curves and corresponding data obtained from the experiments were exported by computers.
Online since: June 2006
Authors: Vytautas Bučinskas, Vytautas Slivinskas, Kastytis Slivinskas
The transient process measured after the hammer blow is used as input data.
Using the FFT and IFFT procedures the sample data is decomposed into two parts: a high frequency component and a low frequency component.
The results show good agreement with experimental data.
The measured impulse response of the investigated mechanical system could be input data for the modeling.
As a result we got six real damped sinusoids (twelve complex exponents) that model the data with RMSE equal to 0.045 micrometers.
Using the FFT and IFFT procedures the sample data is decomposed into two parts: a high frequency component and a low frequency component.
The results show good agreement with experimental data.
The measured impulse response of the investigated mechanical system could be input data for the modeling.
As a result we got six real damped sinusoids (twelve complex exponents) that model the data with RMSE equal to 0.045 micrometers.
Online since: May 2013
Authors: R.K. Wanchoo, Hema Setia, Ritu Gupta
Rather, high discrepancy in the published data for the same nanoparticles on the physical and thermal characteristics of nanofluids is primarily due to different methods adopted by different researchers to obtain stable nanofluids.
Hence, there is a need to establish a standard method of preparation of these nanofluids so as to obtain a unified data which can eventually be utilized for the application of nanofluids.
Nanofluids could aid the industry with their unique properties leading to improved efficiency of heat exchange, reduction in the size of the system, providing greater safety and reducing the cost.
Higher sonication time does not necessarily lead to a reduction in the particle size.
Extensive data on the thermo physical properties and heat transfer characteristics of different nanofluids has been reported in literature, but the progress is hindered even today due to lack of agreement among various research findings, poor characterization of nanofluids, and lack of theoretical base to understand the mechanisms.
Hence, there is a need to establish a standard method of preparation of these nanofluids so as to obtain a unified data which can eventually be utilized for the application of nanofluids.
Nanofluids could aid the industry with their unique properties leading to improved efficiency of heat exchange, reduction in the size of the system, providing greater safety and reducing the cost.
Higher sonication time does not necessarily lead to a reduction in the particle size.
Extensive data on the thermo physical properties and heat transfer characteristics of different nanofluids has been reported in literature, but the progress is hindered even today due to lack of agreement among various research findings, poor characterization of nanofluids, and lack of theoretical base to understand the mechanisms.
Online since: August 2018
Authors: Hervé Fontaine, Paola González-Aguirre, Carlos Beitia, Minh Phuong Tran, Jorgen Lungren, Sung In Moon
Afterward, these transport coefficients were used as input data for the membrane polymer model.
According to simulation data, the HCl contaminant, therefore, penetrates deeper into FOUPs walls made of PC.
This forecasting is in good agreement with experimental data obtained from HCl intentionally contaminated FOUP reported in [7] and showing a transferred HCl amount onto Cu-coated wafer of FOUPs made of EBMCNT that is only one fifth in compared to FOUPs made of PC (cf.
Fig. 8(a) and 8(b) present the results of the HCl amounts reduction in the polymers during the purge step.
A reduction of HCl concentration near surface (over ~10 µm) is evidently observed.
According to simulation data, the HCl contaminant, therefore, penetrates deeper into FOUPs walls made of PC.
This forecasting is in good agreement with experimental data obtained from HCl intentionally contaminated FOUP reported in [7] and showing a transferred HCl amount onto Cu-coated wafer of FOUPs made of EBMCNT that is only one fifth in compared to FOUPs made of PC (cf.
Fig. 8(a) and 8(b) present the results of the HCl amounts reduction in the polymers during the purge step.
A reduction of HCl concentration near surface (over ~10 µm) is evidently observed.
Online since: June 2014
Authors: Jian Hua Liu, Yuan Shou Liu, Hua Long Cai
Fig.1 Data upgrading process Fig.2 Division according to system implementation process
1) Global base data processing: Personnel database, financial foundation data dictionary, fixed assets data dictionary, spatial data.
2) Professional application system implementation: Human resource management, financial management, construction project management, electric power production operation management.
3) System operation, maintenance and upgrade: Unification of operation and maintenance scheme and the standard.
Overall Planning Based on The Data Process.
Information sharing can’t be achieved ,without standardization of data.
The system really play a proper role, only good management of data, making full use of data, uniqueness of the data, completeness, accuracy, betimes be guaranteed.
Also, before complete planning, company should give full consideration to the data standard.
Overall Planning Based on The Data Process.
Information sharing can’t be achieved ,without standardization of data.
The system really play a proper role, only good management of data, making full use of data, uniqueness of the data, completeness, accuracy, betimes be guaranteed.
Also, before complete planning, company should give full consideration to the data standard.