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Online since: July 2012
Authors: Shan Qisong Huang, Si Yu Xu, Xiu Lin Zeng, Xue Hai Ju
These data agree well with the available experimental result.
Introduction Magnesium has a number of applications, especially in automotive and aerospace application, where weight reduction is of significance concern [1].
These experimental data from the most comprehensive experimental source of surface energies include uncertainties of unknown magnitudes and correspond to an isotropic crystal.
Table 2 Surface energies (J/m2) of Mg Mg( 100 ) Mg( 110 ) Mg( 111 ) Mg( 010 ) Mg( 101 ) Mg( 001 ) Mg( 011 ) Expt. a 0.7306 0.7209 0.7375 0.7316 1.0940 0.4610 0.7076 0.8145 a Experimental datum from Ref [6].
Online since: January 2012
Authors: Li Min Sun, Xue Lian Li, Yi Zhou
In recent years, many researchers have concentrated on the influence of environmental conditions on structural modal frequencies based on monitoring data.
Other researchers who studied the relationship between modal parameters and environmental temperature based on monitoring data of CSB include Li et al. [4], Fan et al. [5] and so on.
However, this case enables us to grasp the limits of the change in frequency and can provide data for FE model updating.
In every trigger, 4096 response data points are collected, so the signal’s duration is 32s, which is enough for the response to die away to minimize the leakage.
For each recording, careful assessment of measured data and the resulting FRF must be undertaken, so as not to acquire poor data with the consequence of loss of quality in the modal parameters’ estimation.
Online since: May 2011
Authors: Xiao Fei Yan, Yan Meng
It is easy for data collection.
Data Collection.
According to PAS2050, the data of the carbon calculation have two types: the activity level and the emission factor.
The activity level data refer to energy caused by activity of the product life cycle; the emission factor refers to the number of unit energy GHG gas emissions (such as CO2e/kwh, CO2e/ tCe, Ce/ tCe, etc.).
To buildings product, the data of fossil energy that is coal, oil and natural gas can be solved through the actual measure, and the data of land utilization can be solved through calculating carbon emission, then back calculating into standard coal consumption (this paper called virtual energy, assuming that the all CO2 from standard coal burn).
Online since: April 2015
Authors: Lev B. Zuev, Anna V. Bochkareva, Svetlana A. Barannikova, Alexey Lunev
Their review shows tremendous variability in the available data.
Mathematical data treatment was carried on using routine procedures; the data obtained are reported in [20].
The quantitative data on mechanical characteristics of alloys are listed in the Table.
The data agree with the results of previous studies [21].
Analysis of data was made by the statistic method for physical experimental data treatment using a double t-criterion [20].
Online since: August 2007
Authors: Yannis Kyriakoglou, Paul Bowen, Michael Preuss
It is the data that the ESPI system captures and their post processing that produce the full field stress-strain map for the entire scanned region.
In order to minimise such noise, two types of averaging techniques were carried out on the ydisplacement u(x,y) data, but for generating the stress-strain curves displacements were only recorded in the longitudinal (y) direction.
The calculated stresses which correspond to 5% plastic strain were obtained from the same ESPI raw data as the 0.2% PS values above.
A similar drop in the 5% PS values is observed across the weld as shown in Fig. 6 Basic metallography agrees well with micro hardness measurements and ESPI data in the definition of HAZ width.
All data are from the same FE model running the same flight cycle and values taken at the same time point in the cycle.
Online since: September 2018
Authors: Natalya Tarasova, Konstantin Papunidi, Nikolai Vasilevskiy, Ramsi Nizamov, Yagofar Kurbangaleev, Gennady Konyukhov
The pretreatment of animals with sulfotozifan 2-4 days prior to the irradiation has a positive effect on the animals’ clinical condition, normalizes their hematological parameters, increases the levels of T and B lymphocytes, inhibits peroxidation of lipids (POL), reduces the concentration of malondialdehyde (MDA), the final product of POL, in the erythrocyte hemolysate and blood plasma, and also promotes a reduction in the formation of radiotoxins.
Radiobiology has accumulated a large amount of experimental data indicating very strong biological effects of ionizing radiation on mammals, birds, and other living organisms.
Conclusion Based on the experimental data obtained, it has been established that the pre-treatment of animals with the synthesized agent sulfotozifan 4 days prior to the irradiation at an absolute lethal dose has a positive effect on the clinical condition of the animals, normalizes their hematological parameters, increases the number of T and B lymphocytes, reduces the content of malondialdehyde (MDA), POL final product, in the hemolysate of erythrocytes and blood plasma, as well as promotes a reduction in the formation of radiotoxins and provides 100% protection of the irradiated sheep.
Online since: May 2014
Authors: Chester J. van Tyne, Lee M. Rothleutner
Specimens were heated to a soaking temperature that varied from 1100 to 1250 °C for 5 or 45 min and control cooled to 1000 °C in 6 min, where they were compressed to 40 pct reduction at a strain rate of 1.0 s-1.
Solubility product data are taken from Gladman [5].
A true strain of 0.5 was targeted during testing; however, slightly more deformation was achieved: 0.52 ± 0.02 true strain (40.7 ± 1.1 pct reduction).
The thermal simulations used were 45 min hold times at 1100, 1150, and 1200 °C, as well as a 5 min hold at 1200 and 1250 °C with a single-hit compression step added at 1000 °C for 40 pct reduction.
Online since: February 2007
Authors: I. Bertóti, M. Mohai, A. Tóth, T. Ujvári
Vmin and Tmax have been observed at Umax, Fmin and FRmax, suggesting that the thermal effect is a dominant factor in determining the extent of reduction in the wear rate.
Data acquisition and processing were done with the Kratos Vision 2 program.
These circumstances suggest that in the parameter range studied the thermal effect is a dominant factor in determining the extent of reduction of the wear rate induced by the nitrogen PIII-treatment.
At the same time, Vmin and Tmax have been observed at Umax, Fmin and FRmax, suggesting that the thermal effect is a dominant factor in determining the extent of reduction in the wear rate.
Online since: April 2014
Authors: D. Liu, S.Q. Zhang, H.B. Tang, H.M. Wang, X.Z. Ran, H. Cheng
Compared to that of undamaged heat treated forged one, the tensile mechanical property of the repaired laser melting deposited sample got a few decrease but was still well, in which the tensile strength σb, yield strength σs, elongation δ5 and reduction of area Ψ was 1627Mpa, 1285Mpa, 10.5% and 45% respectively.
However, there is no relative data in the open literatures.
Compared to that of undamaged forged one, as shown in Table.1, the tensile mechanical property of the repaired sample got a few decrease but was still well, in which the ultimate tensile strength σb, yield strength σs, elongation δ5 and reduction of area Ψ was 1627Mpa, 1285Mpa, 10.5% and 45% respectively.
analysis resulting of the LMD heat-treated AerMet100 steel specimen after short-time thermal input at 750℃ and water quenching, and (b) is the local magnification of (a). 4 Conclusion 1 Welding zone with low hardness values mainly consisted of columnar grains with about 200μm width which epitaxial growth from substrate grains, and in which the cellular morphology character appeared at the bottom in comparison with dendrite with lateral branching appearing at the top. 2 Three zones, i.e., sufficient quenched zone, insufficient quenched zone and high-temperature tempered zone, were divided by heating affected temperature and microstructure characteristic in heat affected zone (HAZ), and there was a lowest hardness value region distributed in high-temperature tempered zone. 3 Compared to that of undamaged heat treated one, the tensile mechanical property of the repaired sample got a few decrease but was still well, in which the tensile strength σb, yield strength σs, elongation δ5 and reduction
Online since: August 2014
Authors: Guang Quan Chen, Wen Quan Liu, Xing Yong Xu, Qiao Su
ArcGIS software is applied involving in data collection, data management, data analysis and evaluation process expressing.
The primary detrimental effects of Seawater intrusion are reduction in the available freshwater storage volume and contamination of production wells, whereby less than 1% of seawater (250 mg/l chloride) renders freshwater unfit for drinking.
Fig2 Information value accumulated curve Fig3 Hazard evaluation and evaluation test The precision of the model was validated by the monitoring data of the mean concentration of Cl- from 2011.6 to 2011.10,which are acquired from 18 automatic monitoring stations.
According to the standard of seawater intrusion evaluation, the data of the 18 well can be divided into 3 kinds: no intrusion well(Cl- < 250 mg/L), intrusion well(250 mg/L < Cl- < 1000 mg/L) and serious intrusion well> 1000 mg/L).
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