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Online since: May 2011
Authors: Emad A. Badawi, M.A. Abdel-Rahman, N.A. Kamel, Abdullah A. Refeay
Samples of 25% deformed (thickness reduction) material have been used for these studies.
For example, the spectrum curves for the mean lifetime of positron changes as a function of the sample deformation or annealing temperature; [1-5] the advantages of these methods for obtaining both qualitative and quantitative data on defect behavior are pointed out.
Figure 5 Resistivity as a function of annealing temperature Figure 6(a) Variation of Resistivity as a function of annealing time at 583K As shown in figure 1, the isochronal annealing data reveal two regions.
Samples of 2024 alloy were deformed to 25% thickness reduction, and then subjected to isothermal annealing.
From this figure, it is clear that the isochronal annealing data include two regions observed using the PAL technique.
Online since: June 2008
Authors: Dae Soon Lim, Byung Jick Cho, Y.M. Lee, D.H. Shin, J.H. Shin, J.Y. Park, Yong Soo Choi
Effects of Surfactant Concentration on Step Height Reduction of SiO2 in chemical Mechanical Polishing with Ceria Slurry B.J.
The reduction in the thickness as a function of the polishing time varied with the PVP surfactant concentration in the patterned wafer.
The step height reduction rate decreases as the polishing progresses for all of the slurries.
This study also suggests that the removal rate of the patterned oxide in the surfactant added cerium oxide slurry cannot be easily predicted from the removal rate data obtained using the blanket oxide.
Shin ,The effect of CeO2 abrasive size on dishing and step height reduction of silicon oxide film in STI-CMP, Surface & Coatings Technology, Vol. 200 (2005) 1751-1754
Online since: March 2014
Authors: R.K. Singh Raman, Daniel Borrie, Xiao Ling Zhao, Yu Bai, Hong Bo Liu
The comparisons between the current and previous results have provided data on the durability of CFRP/steel joints under this environmental condition.
For this purpose, the ratios of strengths at 40 oC or 50 oC with that at 20 oC (i.e., Fave/F20, ave data) are also presented in Table 1.
The data clearly indicate that the joint strength decreases with increasing temperature.
To assess the effect of environmental exposure and cyclic loading on the bond strength, the ultimate load (Fult) was compared with the average static strength at 20 oC (F20, ave), and the comparative data are represented as SR in Table 2.
Data in Table 1 suggest a greater reduction in bond strength than those in Table 2.
Online since: May 2011
Authors: Yun Dong Ji, Yan Zi Yin, Ji Hui Wang, Heng Tian, Jiu Xiong Sun
But 3 OF at 0°embedded in bending specimens exhibit about 18.3% reduction, and the effect of 3 OF in the under layer is more than that of 3 OF in the upper layer.
The average of group is gotten from every valid data of specimens.
Although the S3-1/2 at 0°presents the lowest average of tensile strength when 3 OF are embedded, it is only about 8.1% reduction compared to the sample without OF.
And Measures attributed the reduction of less than 10% to manufacturing variations [5].
This can be attributed to manufacturing variations. 2) Only when 3 OF are embedded in the bending sample, it has abou18% reduction. 3) Different embedded layers have different influence (Sample S3-2/3 affected most).
Online since: December 2013
Authors: Chu Zhou Deng, Jian Qiang Zhu, Li Qun Yang
Hence, it is of great significance to do well in energy-saving and emission-reduction.
The measures of energy-saving and emission reduction taken by the enterprises are as shown in Table 1.
These measures bring an obvious effect in energy-saving and emission reduction, as shown in Table 2.
Typical enterprise has gained more apparent effect in energy-saving and emission reduction.
Xiao-yuan Wang and Xiao-juan Zhang for their assistances in data gathering.
Online since: September 2014
Authors: Feng Yi Guo, Liang Hui Guo, Lei Shi
Processing and interpretation of magnetic data usually require information of total magnetization direction.
Introduction In mineral exploration, data processing and interpretation of magnetic data, such as reduction to pole, forward modeling and inversion, usually require known magnetization direction.
Test on synthetic data To test the CMD method, we designed a model composed of four distinct prisms.
And then we estimated the magnetization direction separately from data in each block by the CMD method.
Tests on synthetic data indicates that this method is reliable and effective.
Online since: March 2007
Authors: H. Burt, Brian Wilshire
Creep Data Rationalization for Power Plant Steels B.
One option for long-term data prediction utilizes the Evans-Wilshire approach, termed the θ Projection Concept [5, 6].
The temperature-compensated θ2 and θ4 data values are superimposed by normalizing σ through σY (Fig. 3b) so, with M ≅ 0.03, the ε& m and tf data can be described [10] as }RT/)]/(VQ[exp{Bt/M Y * c * mf σσ−−=ε= & (5) where B* and V are constants, while *cQ is the activation energy for creep at constant (σ/σY).
Cost-Effective Acquisition of Long-Term Design Data Because tf depends inversely on ε& m, with M ≅ 0.03 [11], irrespective of whether the applied stress is normalized through σY or σTS, Eqs. 5 and 6 rationalize not only the ε& m values but also the tf data reported for 1Cr-1Mo-0.25V steel [10], as evident from Figs. 4 and 5.
[11] NIMS Creep Data Sheet No 9b (1990)
Online since: August 2011
Authors: Shu Quan Li, Xiao Na Liu
Data Acquisition First-hand information on short-term behavior was acquired through a questionnaire survey to a number of construction projects in the North of China.
Due to limited space, the interception of part of the data is shown in Table2.
Data Validation In order to ensure the reliability and accuracy of received data, test had been made to examine the reliability and validity of the questionnaire.
When we use dynamic reduction algorithm of Johnson, we can get a nuclear reduction, which is (A3, A5, A9, A11, A14, and A20).
Therefore we choose the reduction result by the Johnson algorithm reduction
Online since: July 2022
Authors: Lorenzo Donati, Marco Negozio, Sara Di Donato
The wire rod was subjected to a preliminary drawing process from a diameter of 8.00 mm to 1.83 mm (area reduction 94.77%).
Fig. 2 shows the data collected during the monitoring of the wire breaks that occurred within the two machines over a period of 60 days, divided into four time periods of 15 days each to carry out a statistical analysis of the failure rate of the machines.
Fig. 4 Operation diagram of two consecutive drawing steps: pass number 2 and pass number 3 Material Characterization Tensile tests on wires extracted at different reduction ratio were carried out to characterize ETP pure copper experimental flow stress data.
Tensile tests were performed after each reduction pass to characterize the material plastic behaviour.
It is not possible to act on the wire reduction ratio at each step to reduce the tensions.
Online since: September 2013
Authors: Jia Hui Yin, Lin Yun Shi, Hong Wu Zhang
The data showed that during"11th Five-Year" period, China's total energy consumption was expected to be 3 billion tons (standard coal, the same below), but the final consumption was amounted to 3.25 billion tons, 8.3% more than the expected.
The inter-provincial comparison between energy-saving and carbon emission efficiency relationship in China Source of research data.
The data information in this paper mainly includes economic data (the GDP absolute number of the provinces, absolute number and comparable index of the industrial sectors), energy consumption (the total energy consumption of the inter-provincial and industrial sectors), and CO2 emission (the final emission of the inter-provincial and sectors, emission of conversion sectors and emission of the origin of various types energies).
Economic data can be obtained from the calendar year "China Statistical Yearbook" and energy consumption data can be obtained from the calendar year "China Energy Statistical Yearbook", but the data of CO2 emission is not available directly.
“Energy Statistical Yearbook” and combination of the various types of energy carbon emission coefficient listed by Japan Science and Technology Agency, the source of GDP data is the same as in figure 1.
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