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Online since: January 2020
Authors: Sergey A. Tipalin, Vladislav B. Belousov, Yili G. Kalpin
Source data Material: 08ps steel (US 1008, EU 1.1121).
The obtained data are used to compute the stress and strain intensity to plot a hardening curve with subsequent power approximation.
By measuring the reduction in the cross-section area as a function of the applied force.
Approximating the experimental data produces a line on the graph, which goes to the negative region.
Experimental data are used to propose changes in the hardening curve coefficients as linear functions of the material thickness.
Online since: January 2025
Authors: Mohammad Zunaid, Gaurav Kapoor, Gaurav Saini
The ideal location for installation can be identified by taking into account factors such as traffic patterns, wind conditions (determined using temperature, humidity, and potential wind turbulence data), regulatory requirements and safety standards.
While lacking specific power output data, the design highlighted advantages such as low cost and ease of installation, warranting further testing and comparisons.
Furthermore, using the above data we can identify most optimal design configuration of Blade which will allow us to get efficient performance in this application.
Parametric Data I.
Through simulation, the CP and CT values closely aligned with experimental data post-model refinement, affirming the reliability of the developed simulation model.
Online since: July 2011
Authors: Run Sheng Tang, Tian Ming Zhang, Hao Zhong
Empirical correlations for a quick estimation of seasonal optimal tilt-angle of vertical single-axis tracked solar panels were also proposed based on climatic data of 32 sites in China. 1.
The objective of this work is to theoretically investigate the optical performance of solar panels tracking the sun about vertical axis with the tilt-angle of solar panels being seasonally adjusted (4 tilt-angles vertical axis sun-tracking, 4T-V-A sun-tracking, in short) as compared with full two-axis tracked and fixed panels in term of the annual collectible radiation based on monthly horizontal radiation data.
However, time variations of total and sky diffuse radiation on the horizon in any day of a year are not available in most places, and the most widely used and available data in solar calculations is the monthly horizontal radiation.
A further analysis showed that the effect of Nc on the annual solar gain was considerably insignificant, and 10 days of deviation from their optimal values resulted in the reduction of annual solar gain less than 0.02%.
Empirical correlations for a quick estimation of seasonal optimal tilt-angle in four seasons were obtained based on climatic data in 32 sites over China.
Online since: July 2011
Authors: Shuo Hou, Yong Zhao, Li Guang Fang, Yu Yu Wu, Guang Hu Sheng, Jian Cheng Tang, Ying Liu, Li Wang
Based on the biaxial strain model, Strain properties of the ZnO films were investigated by calculation from XRD data.
From the experimental data in Fig.4, the optimum value of the negative substrate bias for acquiring high crystalline quality of ZnO thin film would be about 400V.
If grain sizes of crystallites of a film range from 10 to 100 nanometers, The crystallites grain size D could be estimated from XRD data using the Scherrer’s formula [10, 13]
The strain along the c-axis, i.e., perpendicular to the substrate surface, could be calculated from XRD data using the formula put forward by Y.G.
By calculation from XRD data, it is found that there exist only tensile stress in the ZnO films, and the tensile stress increased with the increment of the negative substrate bias.
Online since: April 2014
Authors: Fang Fang Yao, Zhi Qiang Gao, Xiao Wei Liu, Xiao Jing Zhang
The control module is composed of a data selector, a two-phase non-overlap clock circuit and a frequency divider to optimize clock signal.
Both of Vtem and Vcom are the output signal YSNC of MUX (a data selector), via OR logic gate.
Fig. 7 Control module diagram e) MUX Design and Simulation Fig. 8 shows a data selector circuit principle diagram.
Fig. 14 Simulation waveform of data selector Fig. 14 reveals simulation waveform of data selector.
Signals from up to down represent output of oscillator CLK1m, control signal YSNC, internal clock CLKQ and output of the data selector.
Online since: July 2018
Authors: A.A. Lasukov, Vladimir P. Nesterenko, O.Yu. Retyunskiy
The ion meter was connected to a computer and the electromotive force data continuously recorded in the cell was shown on the display.
On the basis of the obtained data showing cutting inserts wear resistance and values of acidity of the oxide substance formed on their contact surfaces when heating we obtained a dependence: wear resistance of the cutting inserts –degree of the surface oxide substance acidity.
However, the stoichiometry reduction process can be different.
The carbon monoxide formed during oxidation of the composite can participate in the reduction processes along with the hydrogen impurity present in the carbide structure.
A reduction in the strength of chemical bond between oxygen and hydrogen in the adsorbed oxide films of hydroxyl groups and a growth in the strength of the bond between the metallic cation of the oxide surface and oxygen promotes an increase in the density and strength of the surface oxide structure.
Online since: July 2022
Authors: Janusz Majta, Krzysztof Muszka, Marcin Kwiecień, Maciej Rumiński, Jakub Kawałko
They observed that for each reduction stage a higher reduction could be selected when using roller dies.
During the measurements, the tensile stage was placed in the chamber of an FEI Versa 3D FEG scanning electron microscope equipped with the EBSD data acquisition system.
During the test, force versus extension data were recorded and then recalculated into stress – strain curves using standard equations.
Bouchard, Comparison of reduction ability between multi-stage cold drawing and rolling of stainless steel wire – Experimental and numerical investigations of damage, J.
Online since: January 2017
Authors: W.Y.H. Liew, Sujan Debnath, Omid Nabinejad, Teh J. Ying, Ian J. Davies
As a result of the surface treatment, impurities, wax, oil, hemicelluloses and lignin may be removed from natural fibres which results in a rougher surface and reduction in size.
Consequently, it can reduces the quantity of water molecule clusters due to a reduction in the number of microcavities {Razera, 2004 #625}[11].
Similar to the strength data, the maximum tensile and flexural moduli were both achieved for the case of 5% alkali concentration.
The influence of nanoclay addition on the tensile and flexural moduli of RHP-UP composites was found to follow a similar trend to that of the strength data with Fig. 7 both indicating the optimum amount of nanoclay to be 1 wt%.
However, all of the alkali treated rice husk particle composites and nanoclay composites showed a significant reduction in water absorption when compared to the untreated rice husk particle composites (and without nanoclay) with the 5% alkali treated rice husk particle composites showed the least moisture uptake when compared to other concentrations (3%, 7%).
Online since: January 2012
Authors: Gui Feng Zhao, Yu Hong Ma, Rui Hai Chen
Introduction In recent years, it is proved that the isolation technology can effectively improve seismic capacity of the buildings and obtain the good effect of vibration reduction, so the technology has been widely recognized by expects and ordinary people.
In addition, isolation construction measure is also a key to ensure the isolated structure safety, which may affect the effects of vibration reduction.
Therefore, it is necessary to gradually summarize the factual earthquake damage reports, extensive analysis data and real testing data, or to ask the authority experts for their advices, so as to improve the membership function and the weight coefficient value.
The presented method of definition damage grade of the isolated structure according to the performances of the isolated layer and the upper structure can adequately consider testing performance and theory performance of isolated rubber bearing, the actual situation of damage of the isolated structure concentrating in the isolated layer and good vibration-reduction effect of the upper structure, so the method is more rational. 3.
Online since: August 2002
Authors: Jean R. Gavarri, Jean Musso, C. Leroux, Agnes Kopia, J. Kusinski, Sylvie Villain, Magdalena Klimczak
Ceria has also been currently used as an active component in the so-called three-way catalyst (oxidation of CO, oxidation of CnHm, reduction of (NO)x), for automotive exhaust [4,5].
In addition, ceria based catalysts were investigated for catalytic red-ox reactions, such as catalytic oxidation of CO and methane [7] or catalytic reduction of sulfur dioxide by carbon monoxide [6- 8].
The resulting size values are similar to the values obtained from X-ray diffraction data.
This is not the case for BM samples which have been subjected to a certain reduction during the preparation process.
In the case of powder samples, the impedance spectroscopy analyses might provide interesting data on the oxygen deficiency of the as prepared samples.
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