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Online since: August 2013
Authors: Changan Li, Bei Lin Fan
According to the water level of Luzhou station data statistics, flood happened in June to September, especially in July and August, the measured maximum flood water level 20.3m(1948), the peak duration is longer, generally 10 to 20 days[2].
The Pingshan Station for the calendar year after 1987, suspended sediment size distribution data for statistical analysis, mean annual suspended sediment size distribution in Table 1.
Table 2 Spended particle gradation of Gaochang Station Particle size (mm) 0.005 0.01 0.025 0.05 0.10 0.25 0.5 1.0 Median diameter (mm) percentage of Smaller than a grain size of sediment weight (%) 11.4 20.4 37.7 57.0 82.8 94.1 99.7 100 0.043 Jiangan county is lack of the measured sediment data, by Pingshan and Gaochang station’s data with statistical engineering reach mean suspended sediment transport capacity of 303.2 million t.
Design Flood This design mainly based on the data of flood, as shown in Table 3.
[4] Wang Shucheng: New strategy for flood control and disaster reduction in China[J].
The Pingshan Station for the calendar year after 1987, suspended sediment size distribution data for statistical analysis, mean annual suspended sediment size distribution in Table 1.
Table 2 Spended particle gradation of Gaochang Station Particle size (mm) 0.005 0.01 0.025 0.05 0.10 0.25 0.5 1.0 Median diameter (mm) percentage of Smaller than a grain size of sediment weight (%) 11.4 20.4 37.7 57.0 82.8 94.1 99.7 100 0.043 Jiangan county is lack of the measured sediment data, by Pingshan and Gaochang station’s data with statistical engineering reach mean suspended sediment transport capacity of 303.2 million t.
Design Flood This design mainly based on the data of flood, as shown in Table 3.
[4] Wang Shucheng: New strategy for flood control and disaster reduction in China[J].
Online since: January 2014
Authors: Song Yang, Wen Jing Cao, Lian Li
Using the processed NGSIM data, the ANFIS model was trained and the model output was validated and compared with the original data.
Datasets and Data Processing Datasets Real driving data from US Federal Highway Administration's NGSIM dataset is used to train the ANFIS model [5].
Pretreatment The data extracted from the datasets, seem to be unfiltered and exhibit some noise artifacts, so these data must be filtered before any further data analysis.
Then other data can be calculated with the filtered velocity data.
Using the driving data, the ANFIS was trained and the output of the model was validated and compared with the real data.
Datasets and Data Processing Datasets Real driving data from US Federal Highway Administration's NGSIM dataset is used to train the ANFIS model [5].
Pretreatment The data extracted from the datasets, seem to be unfiltered and exhibit some noise artifacts, so these data must be filtered before any further data analysis.
Then other data can be calculated with the filtered velocity data.
Using the driving data, the ANFIS was trained and the output of the model was validated and compared with the real data.
Online since: July 2013
Authors: Ching Yern Chee, Y. Yahya Rosiyah, Garlie Li
However, the further increasing of nanoclay content of >15 wt% of nanoclay has caused a significant reduction in tensile, elongation at break and optical properties of PLA matrix.
Introduction The use of biodegradable polymers has contributed to a reduction in environmental problems.
The reduction of elongation increase with the increasing of nanoclay contents.
The significant reduction on WVP started with the addition of nanoclay from 10 wt% to 30 wt%.
The data shows a slight, but not statistically significant trend that as nanoclay content increases, oxygen permeability decreases.
Introduction The use of biodegradable polymers has contributed to a reduction in environmental problems.
The reduction of elongation increase with the increasing of nanoclay contents.
The significant reduction on WVP started with the addition of nanoclay from 10 wt% to 30 wt%.
The data shows a slight, but not statistically significant trend that as nanoclay content increases, oxygen permeability decreases.
Online since: September 2024
Authors: Alexandra Hamza, István Kocserha
The Effect of Inorganic-Based Plasticizers on Clay Bodies
Alexandra Hamza1,a*, István Kocserha1,b
1Institute of Energy, Ceramics and Polymer Technology, University of Miskolc, Miskolc, Hungary
aalexandra.hamza@uni-miskolc.hu, bistvan.kocserha@uni-miskolc.hu
Keywords: building materials, clay, CO2 reduction, fired brick, heavy clay industry, plasticizers
Abstract.
In contrast, the Budit 8 H resulted in a 1-1.5 % reduction in plasticity index with the addition of 0.1 and 0.2wt% additives.
The measured data and their corresponding standard deviations are summarized in Table 5.
In contrast, the Budit 8 H resulted in a 1-1.5 % reduction in plasticity index with the addition of 0.1 and 0.2wt% additives.
The measured data and their corresponding standard deviations are summarized in Table 5.
Online since: July 2021
Authors: Tamar Dundua, Nino Gamkrelidze, Vladimer Tsitsishvili, Natia Barbakadze, Roin Chedia, Lili Nadaraia
Graphite Foil Waste to Graphene: New Carbon Precursors for Synthesis of Graphene and its Oxides
Lili Nadaraia1,a,*, Tamar Dundua1,b, Nino Gamkrelidze1,c,
Vladimer Tsitsishvili2,d, Natia Barbakadze2,e, Roin Chedia2,f
1Republic Center for Structure Researches of Georgia, Georgian Technical University,
77, Kostavastr, Tbilisi 0171, Georgia
2Laboratory of Problems of Chemical Ecology, Petre Melikishvili Institute of Physical and Organic Chemistry, Ivane Javakhishvili Tbilisi State University, 0186, 31, Ana Politkovskaia str,
Tbilisi, Georgia
anadaraia@gtu.ge, bdundua.tamar@gtu.ge, cnino.gamkrelidze@gtu.ge, dv.tsitsishvili@gmail.com,
enatia.barbakadze@tsu.ge, froin.chedia@tsu.ge
Keywords: Powdered waste of graphite foil, Hummers method, Graphene oxide, Reduction of graphene oxide, Graphene.
FTIR data in Fig. 4 showed that the obtained GO contains OH, C=O, C-O, C-OH, C=C functional groups.
Yu: Vacuum-assisted Synthesis of Graphene from Thermal Exfoliation and Reduction of Graphite Oxide, Journal of Materials Chemistry, 2011, 21(14), pp. 5392-5397
FTIR data in Fig. 4 showed that the obtained GO contains OH, C=O, C-O, C-OH, C=C functional groups.
Yu: Vacuum-assisted Synthesis of Graphene from Thermal Exfoliation and Reduction of Graphite Oxide, Journal of Materials Chemistry, 2011, 21(14), pp. 5392-5397
Online since: August 2010
Authors: Luo Xing Li, Yan Lou, Na Luan
In the present hot compression tests of AZ80
magnesium alloy were performed on Gleeble 3500 at strain rates between 0.01-50s-1 and
deformation temperatures between 300-450℃ to determine the flow stress data of the AZ80
magnesium alloy.
The flow stress/strain data were then validated through comparisons between the process parameters measured in real extrusion experiments and those predicted from FEM based the flow stresses with and without deformation heating correction.
To assess the influence of the flow stress data on FEM simulation accuracy, extrusion test was conducted on a 2MN extrusion press.
The container diameter was 50 mm, thus giving a reduction ratio of 23.6.
Both sets of the corrected and uncorrected flow stress data were introduced into the DEFORM 3D software package to simulate the extrusion process producing a strip.
The flow stress/strain data were then validated through comparisons between the process parameters measured in real extrusion experiments and those predicted from FEM based the flow stresses with and without deformation heating correction.
To assess the influence of the flow stress data on FEM simulation accuracy, extrusion test was conducted on a 2MN extrusion press.
The container diameter was 50 mm, thus giving a reduction ratio of 23.6.
Both sets of the corrected and uncorrected flow stress data were introduced into the DEFORM 3D software package to simulate the extrusion process producing a strip.
Online since: July 2023
Authors: M.F. Jaafar, Faizal Mustapha, Mazli Mustapha
Compression testing of MRE material under high strain amplitude produces a nonlinear hysteresis curve based on stress-strain data.
They claimed that the new model contributed to a 30% reduction in modelling errors.
Therefore, it is proposed that these three points are treated as outliers in simulation data and be removed when calculating the residual errors.
Fig. 9 Residual plot after removing outliers in simulation data Conclusion The Bou-Wen hysteretic model has been used to simulate the dynamic compression experiment of MRE material subjected to sinusoidal input displacement.
The result also indicated that the residual errors from the simulation are below 18% after acknowledging the outliers in simulation data.
They claimed that the new model contributed to a 30% reduction in modelling errors.
Therefore, it is proposed that these three points are treated as outliers in simulation data and be removed when calculating the residual errors.
Fig. 9 Residual plot after removing outliers in simulation data Conclusion The Bou-Wen hysteretic model has been used to simulate the dynamic compression experiment of MRE material subjected to sinusoidal input displacement.
The result also indicated that the residual errors from the simulation are below 18% after acknowledging the outliers in simulation data.
Online since: November 2015
Authors: Peter F. Pelz, Philipp Hedrich, Jan Würtenberger, Ferdinand J. Cloos
Comparison of a New Passive and Active Technology for Vibration
Reduction of a Vehicle Under Uncertain Load.
Pelz1,d∗ 1Chair of Fluid Systems, Magdalenenstr. 4 64289 Darmstadt, Germany 2Institute for Product Development and Machine Elements, Magdalenenstr. 4 64289 Darmstadt, Germany aphilipp.hedrich@fst.tu-darmstadt.de, bferdinand.cloos@fst.tu-darmstadt.de, cwuertenberger@pmd.tu-darmstadt.de, dpeter.pelz@fst.tu-darmstadt.de Keywords: vehicle, chassis, active air spring damper, fluid dynamic absorber, quarter car, vibration reduction, control of uncertainty Abstract.
[19] ISO, Mechanical Vibration - Road Surface Profiles - Reporting of Measured Data, ISO 8608, Geneva, 1995
Pelz1,d∗ 1Chair of Fluid Systems, Magdalenenstr. 4 64289 Darmstadt, Germany 2Institute for Product Development and Machine Elements, Magdalenenstr. 4 64289 Darmstadt, Germany aphilipp.hedrich@fst.tu-darmstadt.de, bferdinand.cloos@fst.tu-darmstadt.de, cwuertenberger@pmd.tu-darmstadt.de, dpeter.pelz@fst.tu-darmstadt.de Keywords: vehicle, chassis, active air spring damper, fluid dynamic absorber, quarter car, vibration reduction, control of uncertainty Abstract.
[19] ISO, Mechanical Vibration - Road Surface Profiles - Reporting of Measured Data, ISO 8608, Geneva, 1995
Online since: March 2015
Authors: Tom Eller, Timo Meinders, Lars Greve, Michael Andres, Miloslav Medricky, Ton van den Boogaard
An average (σ-εp)-curve is extracted from the data and plotted in Fig. 7.
Because the conversion from forces and displacements to true stresses and true plastic strains is only valid up to the strain at which necking begins, experimental data only reaches up to a strain of approximately 0.035.
For this purpose, both the classical Swift power law and a Voce type saturation law (Eq. 1) are fitted to the experimental data, see Fig. 7.
The final strain hardening curve, which is plotted as dashed line in Fig. 7, seems to provide a better fit to the experimental data as well (compared to the Swift and Voce fits).
The calibrated, hardness dependent material model was validated using a coupon specimen with HAZ, resulting in excellent agreement of simulated and experimental data.
Because the conversion from forces and displacements to true stresses and true plastic strains is only valid up to the strain at which necking begins, experimental data only reaches up to a strain of approximately 0.035.
For this purpose, both the classical Swift power law and a Voce type saturation law (Eq. 1) are fitted to the experimental data, see Fig. 7.
The final strain hardening curve, which is plotted as dashed line in Fig. 7, seems to provide a better fit to the experimental data as well (compared to the Swift and Voce fits).
The calibrated, hardness dependent material model was validated using a coupon specimen with HAZ, resulting in excellent agreement of simulated and experimental data.
Online since: October 2014
Authors: Shou Ne Xiao, Guang Zhong Hu, Xu Xu Wang, Yong Ming Tang
So, how to classify the data which are relevant, similarity, data versatility (replace) and other characteristics reasonably is an important research topic.
It also reflects that the future of big data management will be a heavy work, how to manage the data rationally and effectively was also a sign to measure the level of development of a country.
Faced with such an era of big data [29], more than a dozen of academicians recommend to senior that China's national strategy should be developed for large data and development goals, making the development of top-level design principles, the key technology.
Parts of integrated system have realized the unified management of data, but not realized professional design for subsystems.
For data management, it should accelerate basic technology research for the unstructured data processing technology, non-relational database management technology and visualization technology.
It also reflects that the future of big data management will be a heavy work, how to manage the data rationally and effectively was also a sign to measure the level of development of a country.
Faced with such an era of big data [29], more than a dozen of academicians recommend to senior that China's national strategy should be developed for large data and development goals, making the development of top-level design principles, the key technology.
Parts of integrated system have realized the unified management of data, but not realized professional design for subsystems.
For data management, it should accelerate basic technology research for the unstructured data processing technology, non-relational database management technology and visualization technology.