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Online since: September 2013
Authors: Hong Qiang Guo
The parameters of Coffin-Manson equation were determined based on the experimental data.
Acceleration stage shows rapid reduction in stress amplitude lead to final ductile rupture of the specimen.
Online since: June 2008
Authors: Viktor Bánhidi, László A. Gömze
Precise thermal conductivity data were gathered from all samples using a RAPID-K type static thermal conductivity measuring instrument.
The bottom plate contains a heat flux detector to collect quantitative data about the amount of heat transferred.
We used fast response K type thermocouples to measure the actual temperatures and the heat flux, the data was collected by a multi channel digital data acquisition system.
The evaluation of the measured data listed above led us to the conclusion, that the sawdust additive was the least effective in decreasing the thermal conductivity.
The XRD data was generously supplied by V.
Online since: June 2024
Authors: Ahmed M. Tahwia, Nirmen Abdelaziz, Ashraf Mohamed Heniegal, Mohamed Amin
Based on experimental data, replacing aggregate reduced the density of lightweight concrete by up to 1400 kg/m3, lowered its compressive strength by up to 33.8 MPa upon complete replacement of the aggregate, and diminished carbon emissions by up to 2.05%.
Hence, rationing the aggregate quantities in the concrete industry is crucial to complying with the Paris Climate Agreement, which obligates a 16% emissions reduction by 2030 and 100% by 2050 for net zero emissions.
It is important to acknowledge the ecological impact, although the ecological impacts related to fine and coarse aggregate lack reliable data [33].
It is noted that the density reduction depends on the aggregate replacement type and proportion, which corresponds to [3, 22].
Tae, Effect of supplementary cementitious materials on reduction of CO2 emissions from concrete, Journal of Cleaner Production 103 (2015) 774-783.‏ https://doi.org/10.1016/j.jclepro.2014.03.018 [52] W.
Online since: November 2010
Authors: S.E. Umukoro, G.O. Umosekhaimhe
Chemical equilibrium analyses of the reaction routes also indicated that reduction in temperature encourages NO2 formation while increase in temperature favours O3 production.
Nonetheless, in some urban air, several ozone related health problems such as: respiratory and throat irritation problems which cause coughing or uncomfortable sensation in the chest and in addition reduction in lung function activities as well as aggravation of asthma, have been documented [8, 9].
Computational Methods: The computational approach adopted in the study involved the use of Gaussian 03 (G03) model chemistry package with input data drawn from structural configurations produced by the GaussView simulation package.
The findings of this study are based on the data consisting of the enthalpies of formation and Gibbs free energy of formation which was generated from the use of G03 computational model chemistry package.
This was ascertained from the analyses of the chemical reaction equilibrium of the various routes which indicated that a reduction in temperature encourages NO2 formation while increase in temperature favours O3 production.
Online since: November 2017
Authors: Pavel Kejzlar, Zuzana Andršová
These results then serve as a basis for modification of the technology and thus they are the tool for significant reduction of amount of NOK parts.
Scanning electron microscope ZEISS Ultra Plus with EBSD detector Oxford Nordlys Nano was used for the EBSD analysis; the data was post-processed using Channel5 SW [5-8].
Online since: July 2014
Authors: Shun Min Wang, Xi Chao Li, Liang Zhou, Xin Yu Wang
The HE (heat exchanger) of automotive exhaust TEG (thermoelectric generator) plays a vital role in converting thermal energy into electrical energy, therefore achieves the goal of energy conservation and emission reduction.
Based on bench test data, the inlet velocity is 21 m/s, the inlet temperature is 340℃, the exhaust gas density is 0.6 kg/m³, and the dynamic viscosity coefficient is 2.96105 Pas.
Online since: October 2012
Authors: Tung Sheng Yang, Sheng Yi Chang, Jen Chuan Yeh
To verify the prediction of FEM simulation for springback, the experimental data are compared with the results of current simulation.
The abductive network is then utilized to synthesize the data sets obtained from numerical simulations.
The abductive network is then utilized to synthesize the data sets obtained from numerical simulations.
The polynomial network proposed by Ivakhnenko [9] is a group method of data handing (GMDH) techniques.
The results predicted by DEFORM-3D are in good agreement with experimental data by Ihab et al. [5].
Online since: December 2013
Authors: Wei Hao, Jin Fu, Ning Bo Zhao, Xin Chun Li, Cheng Kai Pei
Under the reduction condition, hexavalent molybdenum become tetravalent, concentrated in the sediments rich in organic matter and sulfur[1].
But sometimes because of the ore deposit scale is small, is difficult to accurately reflect on geochemical datum in medium and small scale, so need large-scale data for detailed explanation.
Sandstone type uranium deposits located in sedimentary basin edge, but there are less geochemical data in the sedimentary basin, so the application is limited. 1 volcanic type uranium deposit 2. volcanic type uranium ore occurrences 3. volcanic type uranium mineralized point 4.fault Fig.3 Geochemical contour map of molybdenum in the volcanic type uranium deposit 1 volcanic type uranium deposit 2. volcanic type uranium ore occurrences Fig.4 Geochemical anomaly map of molybdenum in the volcanic type uranium deposit Conclusions Molybdenum is an important indicator elements for geochemical uranium exploration,it can clearly indicate the prospective area of carbonate-siliceous-politic rock uranium deposits, volcanic type uranium deposits and sandstone-type uranium deposits.
Make good use of element geochemical data, by means of molybdenum geochemical anomaly in combination with the analysis of the geology, structure and metallogenic elements, is an important uranium exploration method, helps evaluate prospects of uranium resources, improve prediction hit rate of the uranium resource potential evaluation.
[2] Huang Jingbai, Huang Shijie.Introduction to uranium mineralization in China, restricted data (2005).
Online since: August 2007
Authors: Miltiadis Kourmpetis, Alexander D. Fergusson, Amit Puri, John P. Dear, Andrew Morris, Chris Maharaj
It is important to have the latest data as to the age and state of the components and parts at the time of plant shut down.
Indeed, deciding on the best time to shut down the plant for maintenance can depend upon trends in these data.
These creep strain data obtained at shut down provide key information as to the needed replacement of pipes to maintain reliable plant operation.
Both circumferential and axial strain rates are monitored to provide data for analysis to identify when pipes are approaching their reliable end-of-life.
Using the micro-strain data from a series of previous measurements, accumulated strain and strain rate can thus be determined.
Online since: June 2014
Authors: Shu Yuan Ma, Muhammad Ilyas Khan
Data points for plane part were taken in some managed way and enough number of data points was extracted representing the true contour of the surface.
Fig. 1 shows the convergence (optimization process) of the three data samples from [6].
The data were loaded in the optimized developed graphic user interface (GUI).
The algorithms speed is not affected by the number of data points and converge in the same time even if the data point is large.
Genetic algorithms + data structures= evolution programs.
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