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Online since: August 2013
Authors: Guang Hua Wang, Kun Chen, Wen Bing Li, Dong Wan, Qin Hu, Lu Lu Lu
Comparison of the observed peak positions with the JCPDS database, the diffraction pattern exhibits distances of each planes are well consistent with the referenced data of Fe3O4 with the JCPDS database respectively.
The diffraction peaks in 2θ = 30.24°, 35.62°, 43.26°, 53.56°, 57.12°and 62.78° are well consistent with the referenced data of (220), (311), (400), (422), (511) and (440) plane distances respectively.
Fig.4 presents the experimental data for the removal of RhB in the presence of H2O2.It shows that the removal of RhB was promoted remarkably with the increase of Fe3O4 NPs load, up to a certain concentration, where further addition of Fe3O4 becomes inefficient,the optimum loading was 0.7g/L.
Acknowledgements This work was financially supported by Research Fund for the Doctoral Program of Higher Education of China (20114219110002), Fund from Coal Conversion and New Carbon Materials Hubei Key Laboratory (Wuhan University of Science and Technology)(WKDM201107), and Open-end Fund of the Science Research Center of Green Manufacture and Energy-saving and Emission-reduction of Wuhan University of Science and Technology (A1201,B1209).
Online since: September 2008
Authors: Chin Che Tin, I.G. Atabaev, B.G. Atabaev, T.M. Saliev, E.N. Bakhranov, N.A. Matchanov, S.L. Lutpullaev, J. Zhang, N.G. Saidkhanova, F.R. Yuzikaeva, Rusli Rusli, I. Nuritdinov, A. Kh. Islomov, M.Z. Amanov, A. Kumta
Based on our experimental data, we have determined that the coefficient of boron diffusion using our diffusion method was about 5.5 x 10 -11-5.0 x 10-10 cm2/sec in the temperature range of 1150 -1250°С, with an activation energy of about 0.9 -1.15 eV.
The optical absorption data were in good agreement with the electroluminescence data.
A reduction in the intensity of the luminescence peaks connected with growth defects (750 nm) and diffusion-related defects (630 nm) was observed.
Online since: February 2011
Authors: Cai Ru Gao, An Yang Wang, De Wen Zhao, Hui Liang Wu, Shun Hu Zhang
These mills have characteristic of great reduction, high production efficiency and low production costs.
Fig. 1 Schematic illustration of single compression tests Temperature /℃ Time/s 1200×3 min 10 /s 2s Strain: 0.6; Temperature: 850~1100 Strain rate: 0.5、1 and 5s-1 Results of the Experiment The main curves of the deformation resistance are obtained with the experimental data and are shown in Fig. 2.
The curve data is obtained under the condition of ε=0.2 and ε=0.4.
The Eqn.(1) is the expression of the model: (1) where:; ; ; ——reference deformation resistance; is obtained at t=1000°C, ε=0.4 and =10s-1, the experimental value of is 168.807MPa; t——deformation temperature,°C;——true strain;——strain rate,s-1;~——regression coefficients Substituting the experimental data obtained by single-pass compression test into the above model and using the origin software to regress, the regression coefficients are obtained, as are shown in Table2.
Online since: July 2011
Authors: Jing Zhi, Bao Gao, Peng Shen, Ze Qiang Fu
Data acquisition.
The acquisition of data for the case study was done through a questionnaire-survey, expressly developed for the project.157 companies had been invested including 45 large scale companies, 24 medium scale companies and 74 small scale companies.
Thus, the proposed indicators, by using simple data available for all companies, are useful in detecting the base’s critical points: resource consumption, the usage of system’s own resources, waste generation and efficiency.
But it is also needs to be further developed in order to help in reduction pollutant.
Online since: May 2004
Authors: E.S. Dvilis, Oleg L. Khasanov, O.V. Karban
Introduction Structural or functional nanocrystalline ceramics has improved mechanical and functional properties (fracture toughness, strength, hardness, thermal conductivity, specific electronic or magnetic properties) due to the reduction of grain size to the nanometer scale.
According to the AFM-data on size distribution of grains, the increase of W together with the increase in P sets a grain size limit, after which a reverse process - the coagulation - becomes dominant.
According to the XPS data the relation of Y and Zr content changed for the samples with the intercrystalline mechanism of breakdown.
The enrichment of these regions in Y results in a high local stiffness, as it is proved by the AFM data measured in the phase-contrast mode, and the stabilization of the interfaces.
Online since: July 2004
Authors: Bogdan F. Palosz, Stanislaw Gierlotka, Svetlana Stelmakh, Grzegorz Kalisz, Anna Swiderska-Sroda, Ewa Grzanka
The experimental data shows that the desorption of weakly bonded impurities, mainly H2O, takes place below 200°C both in diamond and SiC powders (Fig.1).
The oxidation is observed as a reduction of the oxygen in the outcoming gases and, at the same time, an increase of emission of carbon and its oxides from the samples is observed.
From SAXS data one can also deduce the relative positions of individual nano-objects present in the material.
The data is presented in Table 2.
Online since: November 2005
Authors: T. Matsuyama, Yasuji Oda, Hiroshi Noguchi, Kenji Higashida, Y. Aoki
σ0.2 [MPa] σB [MPa] ψ [%] 256 646 54.1 σ0.2 : Proof stress σB : Ultimate tensile strength ψ : Reduction of area Experimental results and discussion Fatigue data.
Fig. 3 shows the ∆εt-Ni, Nf data.
Besides, slip bands near the crack ∆εt : Total starin range N i : Crack initiation life N f : Total fatigue life Fig. 3 ∆εt-Ni, Nf data Test piece : 316L stainless steel 5*7*0.18 (in mm) Pressure : 1.0 MPa Temperature: 393 K Time : 100 hours Charging condition Fig. 2 Example of relationship between hydrogen content and surface finishes tip do not develop.
Online since: February 2019
Authors: Vasily A. Ivanov, Nadezhda T. Kareva, Anatole Pellenen
That is necessary for technological difficulties reduction in obtaining a bimetallic strip.
The results of the experimental data have determined the supreme total strain under which the cladding strip ruptures occur.
The experimental data, presented in Fig. 2, are approximated by the least-squares method.
The results of the experimental data are approximated by the method of least squares.
Online since: August 2016
Authors: Nisarg K. Bhatt, P.N. Gajjar, Amit B. Patel, C.H. Patel
In recent years, neutron scattering data in liquid alloys and metals have become increasingly available.
Moreover, for both S(q) and g(r), slight amount of reduction in principal peak is observed with increasing Sn concentration.
In lieu of experimental structural data to us, we believe that the reported data will provide a better source for further investigation, and may serve as the means of comparison.
Online since: August 2014
Authors: Withaya Puangsombut, Kwanchai Jantana, Thana Ananacha
Data Reduction To evaluate the thermal performance of the interlocking block solar collector will be calculated in term of efficiency, which is defined as the ratio of useful energy to solar intensity on the wall, it can be estimated as equations: h = Qu/AcIb (1) Qu = AcFR[S-Ul (Tfi-Ta)] (2) where: h is the efficiency (%), Qu is useful energy (W), AC is area of collector (m2), Ib is measured solar intensity on the collector (W/m2), S is absorbed solar radiation on the collector (W/m2), FR is collector heat removal factor [6], Ul is overall coefficient of heat losses (W/m2.
Thermocouples type K (range: 0-1250°C, accuracy ±0.5°C) were installed at different positions (figure 3), the thermocouples were connected the data logger (Hioki, Model: 8422-52, accuracy ±0.8%).
The data were recorded every 30 minute.
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