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Online since: March 2018
Authors: Waddah Al Hawat, Osama Ahmed Mohamed, Omar Fawwaz Najm
For example, studies have shown that alkali-silica reaction may reduce concrete compressive strength of built concrete structures in the long-term by more than 50% [1], leading to reduction in life span.
The input data used to train the ANN model was collected from the literature and was validated using the experimental data produced by the investigators.
A total of 70 data sets were used as an input, while 20 experimental results were used to test and validate the ANN model.
The results of the ANN model with learning rate of 0.3, momentum of 0.5 and epochs of 5000 achieved high accuracy of 95% compared to experimental data.
Online since: April 2015
Authors: Pongjet Promvonge, Sombat Tamna, Ying Yong Kaewkohkiat
The thermocouple voltage outputs were fed into a data acquisition system and then recorded via a laptop computer.
Data reduction The Re is given by
In the figure, the present smooth duct results are in excellent agreement within 3% with the correlation data.
Acknowledgements The authors would like to thankDr.Sompol Skullongfor data collection of this research and also the financial support provided by the faculty of engineering, King Mongkut’s Institute of Technology Ladkrabang (KMITL) is gratefully acknowledged.
Online since: July 2015
Authors: Eduard Cesari, Volodymyr Chernenko, Valeriy Prudnikov, Ivan Titov, A. Granovsky, Elena Gan’shina, J. Barandiaran, Andrey Novikov, Igor Rodionov
The origin of MT is commonly related to the electronic instabilities, although this mechanism is questioned in view of recent experimental data on the Hall effect [3].
Therefore, we will present only the experimental data after cycling, i.e. those displaying no MT.
A disappearance of MT in SC samples in the studied temperature range can be explained by the-atomic-order-triggered strong reduction of entropy change accompanying MT up to its full “arrest” [5,6].
That is consistent with Hall effect data [3].
It is interesting to compare the MO spectra for the studied Ni45Mn36.7In13.3Co5 samples and data available in literature.
Online since: September 2013
Authors: Zsuzsa Majoros, Peter Sasvari
In general it can be stated that in Western Europe the amount spent on IT investments has been steadily increasing by approximately 12 billion US dollars in five years. [7,20] Due to the effects of the economic crisis in 2008, businesses throughout the world became more cautious, seeking after cost reduction and, parallel to this, increased efficiency, which may lead to the further development of information technology.
In order to set up the rankings, the following factors are assessed: convergence in the information and communication technology, network neutrality, growing importance of mobile broadband connections, costs of broadband connections, role of real-time analysis in the examination of large amount of data, impact of information technology in education.
Depending on the users' role, the following two types can be delineated: "Executive information systems produce data, information and documents that are needed for performing the organization's core business activities and its routine tasks.
Types of the applied information systems The data on the applied information systems in three surveyed countries can be seen in Figure 1, since Slovakia (SK), as one of Hungary's neighbouring country, was also included in the original survey.
The data on micro-enterprises are highlighted for better comparison in all of the three countries.
Online since: January 2012
Authors: G.C. Lin, H. Liu, J.X. Zhang
X-ray diffraction (XRD) data was collected by D8 ADVANCE X-ray Diffractometer working with the Cu Ka radiation.
The maximum mass reduction is 0.97wt% for H2O2-treated sample and 0.66wt% for as-prepared sample, which is quite close to the results reported by Karppinen et al [5].
To avoid the influence of peak 2, the calculation of relaxation for as-prepared sample without the data of 1.0, 2.0 and 5.0 Hz.
Based on the synchrotron X-ray diffraction data, the lattice parameters for the two subsystemswere reported previously [5]: with the decrease of oxygen content (increase of OVs concentration), the b axis parameter of RS Ca2CoO3 subsystem decreases distinctly.
Online since: December 2010
Authors: Heng Lin Lv, Bei Dou Ding, Yong Sheng Ji
If the survey migration is defeated, target point may be adjusted through the reduction of step length. 2. pattern search A better spot is obtained by previous movement of the survey migration.
FINITE ELEMENT MODEL UPDATING USING FREQUENCY RESPONSE FUNCTION DATA-DATA-II.CASE STUDY ON A MEDIUM-SIZE FINITE ELEMENT MODEL[J].
FINITE ELEMENT MODEL UPDATING USING FREQUENCY RESPONSE FUNCTION DATA-I.THEORY AND INITIAL INVESTIGATION[J].
Online since: May 2012
Authors: Ke Chun Sun, Wei Jun Zhang
Environmental and economic considerations, reduction and reuse of municipal sewage sludge is an urgent thing that need to be solved today.
The expansion coefficient of water is an important parameter in the processing of test data, Chin Chao Wu et al[8] found that the distilled water and the filtrate have different expansion coefficient.
However, by the method the measuring is fast and test data easy to analyze, so it still has certain advantages.
Expansion test method there are also some aspects need further improvement, such as temperature thresholds determination, but the method is of fast, easy analysis for experimental data, therefore, the method is still the most recommended.
Online since: October 2011
Authors: De Quan Shi, Zhi Wei Gao, Hui Ying Tang, Yong Jun Zhao, Da Yong Li, Xu Dong Shi
No statistically significant effects of grain refiner addition on fluidity are revealed, but there is a grain size reduction of the spirals from the base to the tip.
In this device, the advance speed of the interface between liquid metal and the foam pattern during the filling process is measured by a computer data acquisition system.
Fig. 7 The mould structure of high speed photograghic method With the development of computer technology, the data can be acquired and analyzed by computer [10].
Fig. 8 Schematic diagram of data acquisition system Fig. 9 Some pictures of high-speed camera X-Ray Observation Method.
Online since: October 2011
Authors: Yan Fei Zhang, Ying Chun Li, Guo Sheng Hu
Moreover, the rheological property is the basic of important processing data and theory.
The temperatures and the extruded speeds were recorded automatically by electronic recorder. 1.5 Data processing The shear stresses, apparent shear rates, non-Newtonian indexes, shear rates, apparent viscosities were calculated according to the following equation (1) ~ equation (5) respectively: (1) (2) (3) (4) (5) Wherein tω is the shear stress, MPa; Δp is the differential pressure mounted on the both
The data in Table 2 indicated that the temperature–sensitivity of apparent viscosity of PA11/POE/OMMT is relatively weak.
At last, the reduction of the viscous activation energy with the increase of shear stress showed a faded temperature–sensitivity of apparent viscosity, and therefore the PA11/POE/OMMT nanocomposites can be processed over a wider temperature.
Online since: May 2015
Authors: Anișor Nedelcu, Nicolae Anton
It’s about the need to ensure that information and programs are modified only in the specified and authorised manner and that the submitted data are original, unaltered or deleted in transit.
Treatment or selective reduction of risk is appropriate to the negligible, minor, medium and some major risks, by adopting preventive measures to reduce the possibility of occurrence of unwanted events and use of adequate procedures and techniques for reducing their consequences.
For the IT Security (INFOSEC) component of an integrated information security system, in terms of hardware and software, the data needed for the systemic analysis have been calculated in Table 2.
Risk management is the process that allows IT managers to ensure a balance between operational costs and the financial resources for protection measures and reaching data and IT systems protection objectives that support the organization's work.
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