Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: July 2012
Authors: Wei Ye, Yu Bin Tang, Fang Yan Chen
The adsorption equilibrium data was well interpreted by Langmuir and Freundlich isotherm model.
Adsorption isotherm of heavy metal ions at 25℃ The Experimental data presented in figure 5 was correlated by Langmuir and Freundlich adsorption isotherm equations and resulting parameters are listed in Table 1.
In literatures, several models have been reported to describe experimental adsorption kinetic data.
Two generally applied kinetic models, namely, pseudo-first-order and pseudo-second- order kinetic models were attempted to fit the experimental kinetic data.
The equilibrium data fitted better with Langmuir isotherm equation than Freundlich equation.
Online since: January 2016
Authors: Paul Byrne, Yacine Ait Oumeziane, Laurent Serres, Thierry Mare
The objective is to estimate the freshwater production depending on the cooling loads of a refrigerator placed in a building submitted to the conditions given by a weather data file in the Trnsys environment.
The data on climate change (temperature increase) and the change in annual precipitation is available in the last document of the Intergovernmental Panel on Climate Change IPCC [2].
A weather data file (Dakar in Senegal) provides air temperature and relative humidity and beam, diffuse and total radiations to the system.
The weather data file of Dakar (Senegal) is used.
The model is partially validated by a simple experimental study and by data from the literature.
Online since: October 2025
Authors: Oksana A. Korniienko, Andrey V. Ragulya, Olena M. Lavrynenko, Maksim M. Zahornyi, Erwan Paineau, Yassine Naciri, Mohamed Nawfal Ghazzal
The phase composition of the samples was determined according to The International Powder Standards Committee (JSPDS International Centre for Diffraction Data 1999) database.
Interpretation of the diffraction data was carried out by Rietveld analysis.
Mathematical processing of the obtained data included calculations of the degree of change in the color of the solution, the sorption capacity, and the reaction rate constant at standard equations.
It should be noted that for standard anatase the degree of tetragonality lies within 2.51–2.52, which corresponds both to the given data and to the parameters of pure anatase obtained in our study.
The results of mathematical data processing indicate that in all cases the reactions correspond to the pseudo-first-order.
Online since: May 2011
Authors: Peng Ju Cui, Da Feng Gao
Overall, the displacement variation of each tower top is: with the time difference increasing of the seismic waves reaching two adjacent piers, displacement response also increases, when the difference value is 1s, earthquake displacement response of each tower top begins to decrease. 3.2 Internal force analysis (1)Axial force analysis From Tab. 2, variation of pier bottom axial force is: when the time difference is very small, the data of axial force maximum of piers bottom is larger for the 1#, and when the time difference is 0.5s, the data is the largest, but as the time difference increasing, the data decline gradually, and reduce quantity achieves 4176KN.
When the time difference is 0.5s, the data is the largest, and the difference value of the largest and the smallest is 2064KN.
For the 3#, when the time difference is small, axial force maximum of piers bottom is larger, and the data is the smallest when the difference is 0.5s, and the difference value of the largest and the smallest is 2982KN.
(2) Shear analysis and bending moment analysis From Tab. 2, longitudinal shear maximum of piers bottom is increasing with the reduction of seismic wave velocity, and three piers show the same rule.
Online since: January 2011
Authors: Peter Seidler
Also the application of high performance polymers by skilled crafts necessitates a strongly enforced risk-management, e.g. with a register at the Internet [2]. 2nd Flaw: Methodology: The Scientific Method According to Descartes (1596-1650) there are four principles: evidence, reduction, increasing complexity and reproducibility - e.g
● Define the question ● Gather data and observations ● Form a hypothesis ● Perform an experiment and collect data ● Interpret data and draw conclusions What defines a good theory?
He confesses to being overwhelmed by the plethora of data from the 100 competitors in my country.
Data basis of six international colloquia on «Industrial Floors» and twelve ICPIC Congresses since 1975.
Online since: August 2013
Authors: Tian Li Li, Yi He, Ri Bo Ge
If large amount of modification happens in the process form, there will be a reduction of coincidence degree, contact height along the depth of tooth will decrease, so the vibration and impact stress increased [1].
PRO/E simplified database model design needs to establish a unified basic data information, change the traditional CAD/CAM system database to ensure project data come from one library, and independent users conduct element construction in accordance with the different model requirements in the process of product design.
From the whole data model design, it can solve the problems of entire link due to changes in the design process.
From the perspective of the whole 3 d model design, data structure and engineering design need to be fused to ensure that product design meets related requirements and that more optimization design model to further improve product quality.
PRO/E three-dimensional and two-dimensional graphic design need to be taken finite element analysis in the design process, and then rear model processing to ensure that the standard data format conversion can be implemented.
Online since: September 2011
Authors: Jürgen Malzbender, Stefan Baumann, G. Pećanac
The fracture stress data σ were used to determine the characteristic strength σf and the Weibull modulus m using a maximum likelihood statistical analysis after ASTM C1239-07 based on the relationship for the failure probability.
The loading rate sensitivity of bending test data can be used to assess the slow crack growth sensitivity of a material.
Fig. 2 gives a graphical representation of the data for BSCF.
The resulting SCG parameters are n ~ 30 and D ~ 94 MPa, which compares well to the literature data of LSFC (n = 24, D = 95 MPa), another perovskite material considered for OTM application [4].
From the bending creep tests a compressive strain rate of 2∙10-7 s-1 is determined for the first 25 hrs step, which is in agreement with literature data 3∙10-7 s-1 for these conditions [6].
Online since: August 2013
Authors: Xiao Rong Pan, Fan Wang
The comparison between the traditional and new design method Data preparation In this step, the traditional and new design method both have the same process.
Component number: 3023 Fig. 6 The most obviously deformed diagram of radial components Fig. 7 The axial force under D+L condition of the radial components Effective length factors calculated by the traditional design method In traditional design method, the relevant data of one or few components in the buckling region were taken to calculate the effective length factor.
Basic data outputted from SAP2000 as follows: the axial force P= 68.211kN, the buckling factor λ= 26.4, the box shape of the cross-section is □250×100×6 and its strong axis of moment of inertia I= 0.000031 m3, the geometric length L= 1.80m, the steel elastic modulus E= 2.06×108kN/m2.
Table 2 Data reduction of the effective length factors The Range of the Effective Length Factors Number of the Components Tension Components 765 0~1 5 1~2 202 2~3 348 3~4 287 4~5 174 5~6 109 6~7 92 7~8 59 8~9 54 9~10 22 >10 119 The total number of components 2236 Then set the minimum value to 1.6, and form the data from Table 2 into the pie chart as shown in Fig. 12 .
Online since: January 2012
Authors: Rudolf Kawalla, Philipp Hagemann, Grzegorz Korpala, Matthias Schmidtchen
Besides own experiments to expand the data base for the modeling purposes additional literature data were used [7].
The data are taken of conventional production and performed by torsion test; the chemical composition is given in table 2.
Table 2: Chemical composition of N1 steel C Si Mn Nb N N1 0,11 0,24 1,23 0,042 0,0112 Results and discussion In Fig 4 the result of the model is shown for the literature data.
Out of the model data for the N1, Fig. 4, the recrystallisation-precipitation-temperature-time-curve can be calculated, Fig. 6, which shows the occurrence of the precipitation plateaus.
It can be concluded that a reduction of titanium in direct charging leads to the same results as in conventional production.
Online since: May 2012
Authors: Chao Liu, Dai Yue Huang, Gilles Puel
The emerging practices of EcoDesign in companies Because the implementation of national regulation on EcoDesign is not effective, there is no official data.
Further, it is difficult to collect data directly from the companies.
However, in order to establish the new regulatory system for EcoDesign, the MIIT judged it necessary to collect data from the main companies.
To better analyse the correlations, we have only included non-nil data.
The results are quite limited, because we are left with only 21 data points.
Showing 23901 to 23910 of 40402 items