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Online since: October 2013
Authors: Jian Fei Sun, Xue Min Zhang, Jun Ling Zhao, Fu Wei Kang
The hot deformation behaviors of the nickel-base superalloy GH4169 have been studied by isothermal constant true strain rate compression testing at 950˚C-1150˚C, 0.01s-1-10s-1 and the height reduction 50%.
The processing maps of GH4169 alloy have been constructed at different strains on the basis of testing data using a dynamic materials modeling.
The specimens were compressed with height reduction of 50%, in isothermal condition at the temperature and strain rate ranges of 950˚C~1100˚Cand 0.01s-1~10s-1, respectively.
Online since: September 2012
Authors: Bao Ping Chen
Traditional principal component analysis is a linear dimension reduction technique.
However, in the practical application, the indexes of the original data usually present nonlinear relationships and the dimension reduction effect of the principal component analysis is not ideal.
The data sample in the evaluation can be very small and the index of the original data can be nonlinear, so this method can have a wider applicability in solving most problems.
It can be applied to the evaluation study with few statistical data, large data grey, great data fluctuation or non-typical distribution regularity.
Table 1 shows the relevant data of the 24 cities in 2010.
Online since: December 2012
Authors: Masoumeh Tabatabaee, Paria Baziari, Navid Nasirizadeh, Hamed Dehghanizadeh
The average particle size obtained from XRD data is ~25 nm.
The percentage of bacteria reduction (R, %) was calculated using the equation 1: R = (C0 – C) × 100 / C0 (1) where C0 (CFU—colony forming units) is the number of bacteria colonies on the control fabric (untreated fabric without nano-sized CdS) and C (CFU) is the number of bacteria colonies on the fabric loaded with nano-sized CdS.
Assessments displayed percentage of bacterial reduction sample was 97% (Fig. 3a).
While, no efficient reduction obtained in blank sample (Fig. 3b).
Online since: October 2007
Authors: Chul Sung Park, Young Soo Ryu, Jeong Soo Lee
The mechanical properties of electroslag welding were improved owing to the reduction of excessive welding heat input by researching welding groove type, guide nozzle, process type and so on. 1.
The mechanical properties of electroslag welding were improved owing to the reduction of excessive welding heat input by researching welding groove type, guide nozzle, process type and so on. 2.
(2) The mechanical properties of electroslag welding were improved owing to the reduction of welding heat input by researching welding groove type, guide nozzle, process type and so on
(4) This study obtained valuable data which are welding conditions and mechanical test results for the electroslag welding process.
Online since: April 2013
Authors: Zhi Fang Guo, Ji Hong Lin, Jing Luo
Based the panel data of China from 1997 to 2008, this paper constructed the regional total-factor energy efficiency (TFEE) by using the method of the data envelopment analysis (DEA) and then discussed the regional influence of FDI on local energy efficiency.
Some policy suggestions are also put forward for energy-saving and emission reduction target.
Mielnik (2002) came up with the hypothesis that FDI has a negative effect on energy intensity after making an OLS regression of data from 20 developing countries [2].
In order to guide the boot of FDI and to save energy, the paper uses panel data of 1997 - 2008 of China to explore how FDI influence on Chinese energy efficiency.
All the data were extracted from "sixty years of new China's compilation of Statistics" and "China energy statistical yearbook" (1997-2008).
Online since: December 2014
Authors: Shui Jun Peng, Yi Cao
Practically, the data of input-output table is at sector-level, furthermore, it includes both direct and indirect influences of sectors.
The SDA model and data preparation Construct the SDA model.
Data.
China’s IO tables of 1987, 1990, 1992, 1995, 1997, 2002, 2005, 2007 and 2010 are merged into 26 sectors, so that it is consistent with the energy data.
Since the IO tables of 1987, 1990, 1992 and 1995 only have “net export”, we use the import and export data at sector level of [6].
Online since: May 2012
Authors: Nicolas G. Wright, Alton B. Horsfall, Christopher M. Spargo, Benjamin J.D. Furnival, R.M. Mahapatra, J.P. Goss
The data shows that with increasing illumination intensity, the C-V curve shifts toward a more negative bias.
The G-V data shows a reduction in amplitude of the main peak with increasing illumination intensity.
This is similar to that observed in the λ=350nm data, and is thought to be related to the changes in time constant of the dominant trapping state [7].
The data also shows that the second peak increases in amplitude with increasing photon intensity.
The data indicates that following illumination at both wavelengths, the electronic distribution within the interface changes.
Online since: July 2013
Authors: Yang Zhang, Xiao Bin Luo
Foreign and domestic scholars have made a wide range of researches in damage identification with data of vibration.
Node vibration data far from the damage location was selected and collected to form the objective function.
How to find test points and collect data far from the location at the upper of the jacket.
Based on tested modal in q nodes, the modal data in the direction with the biggest range of variation can be selected as test data.
The data are used to form the objective function needed in the optimization module, the function is minfx=1nk=1n(Zij-zij)2
Online since: October 2011
Authors: Yan Ling Guo, Su Yun Zhang, Zhen Guo Lin
The cooling and heating resources contained in urban sewage have significant influence on the “energy conservation and emission reduction”.
Introduction The urban sewage discharge in China is huge, and utilizing the thermal-energy contained in sewage significant influence on the “energy saving and carbon reduction”.
The overall goal is to bring the sewage thermal-energy resources into urban sustainable energy supply system, avoid disarray in construction of sewage-source heat pump projects, and play stronger role in "energy conservation and emission reduction".
The planning of urban sewage thermal-energy distribution can provide basic data for design and operation of sewage-source heat pump projects in planning district.
Researches on theory and method of urban sewage thermal-energy resources plan will provide important theoretical support and guidance for its extensive utilization, having significant influence on "energy conservation and emission reduction".
Online since: June 2014
Authors: Zhi Juan Mao, Ling Liu, Xiao Qing Ma
Introduction Many countries have taken measures of energy conservation and emissions reduction to protect environment due to continuous increase of energy consumption in the worldwide and unceasing worsening of global ecological environment.
Moreover, we analyze the causality between energy consumption and economic growth based on the data of 31 provinces in China from 1978 to 2011.
Based on the yearly data of 31 provinces of China from 1978 to 2011 obtained from China Statistical Yearbook (CSY), we evaluate the industrialization level of each province in each year.
First, we give the Panel Unit Root Test as below. 2.2 Panel Unit Root Test For the sample data, we assume the 1-order auto-regression process takes the following form: (1) In (1), denotes the external variables, including the cross-sectional fixed effect and time tread; N is the sample number with representing the time interval of the i-th element; are independent and identical distributed random error terms.
Table 6: The Granger Causality Test in the Pre-industrial Stage Dependent variable Independent variables short term long term lnGDP lnEC ECT lnGDP 4.610 (0.008) -0.749 (0.018) lnEC 3.993 (0.015) -0.732 (0.059) Main Results and Policy Suggestion The authors have tested the causality between the energy consumption and economic growth based on the data in 31 provinces of China.
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