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Online since: September 2014
Authors: Jiang Zeng, Li Peng Huang
To lower switching loss, the corresponding switching frequency should be adjusted to 1+y and 1-y respectively( the whole frequency is fixed) , the total switching loss can be given by: (3) The relation between adjustment range for optimal switching frequency and current fluctuation range is complicated, but in practical application, using numerical calculation and data fitting, a simple formula below turns out: (4) Linear fitting is precise enough to formulate the proportional relation between them, close to 0.3832, as long as current fluctuation is not too high.
At the same time, it makes appropriate arrangements for switching times based on the size of the three-phase current and makes split phase hysteresis adjustment, so as to achieve a further reduction of switching losses.
Online since: June 2014
Authors: Chong Fai Kait, Raihan Mahirah Ramli, Abdul Aziz Omar
In this study, DIPA is chosen as the organic pollutant because although this alkanolamine is widely utilized in natural gas processing, limited data are available on its degradation study.
The presence of Fe explained the reduction in the Eg for Fe/TiO2_WI (2.9 eV) compared to TiO2 (3.2 eV), where the incorporated Fe induces new intra band gap states which enable TiO2 to absorb light at lower energy levels [24].
Online since: June 2014
Authors: Angela Viglianisi
We are in front of a review (Law 7 August 2012, n. 135 [3]) that the Country wait from too many years (well 24, by the Law 8 June 1990, n. 142) and that should pursue the objectives of the administrative and bureaucratic simplification, the rationalization of the skills, the optimization of the costs, the reduction of the political and administrative class in a point of view of strong and synergistic integration of policies and management of administrative capacity in the territories.
They are based on ISTAT data according to the daily commute for work purposes.
Online since: December 2005
Authors: Valentin V. Emtsev, Anthony R. Peaker, L.I. Murin, L. Dobaczewski, Valentin V. Litvinov, Nikolay V. Abrosimov, Vladimir P. Markevich
In addition it makes remote phonon scattering a significant mechanism of mobility reduction in the semiconductor material.
Data are taken in part from [11] for the E centres, [12,14] for VO and [10] for V2 Conclusion Whereas irradiation damage can be removed with simple low thermal budget furnace anneals the situation with regard to silicon ion implantation is far more problematic.
Online since: July 2022
Authors: André F.G. Pereira, Daniel J. Cruz, Marta C. Oliveira, Abel dos Santos, Rui Amaral, Vasco M. Simões
The use of new materials for weight reduction is essential to address these issues.
The CPB06 constitutive parameters were identified based on the following experimental data: R-values and yield stresses from tensile tests cut at 0º, 22.5º, 45º, 67.5º and 90º with the RD; yield stresses from shear tests cut at 0º and 45º with the RD; and the biaxial yield stress obtained from the bulge test.
Online since: June 2013
Authors: Roxana Trusca, Miuţa Filip, Tiberiu Rusu, Aurelia Pop, Ioana Perhaiţa
The use of the Romanian natural clay catalysts for study of thermal and catalytic degradation of PWM could be a suitable way for cost reduction of a catalytic process and to obtain valuable chemicals for industry.
The acquisition of chromatographic data was performed by means of the HPchem software.
Online since: September 2013
Authors: Nejc Thaler, Miha Humar
Compressive strength test of mechanical properties showed very similar relations between individual data sets of same wood species.
Compressive strength of old beech wood was reduced by 61%, a similar reduction to the MoR value.
Online since: September 2018
Authors: Oluwole Daniel Makinde, S. Mohammed Ibrahim, D. Vijaya Kumar, K. Gangadhar
A plot of the logarithm of the error of the norm (given by equation (35)) against the number of iterations can be used to illustrate reduction of the error with the number of iterations.
Present study Hayat et al.[37] 0.1 0.2 0.3 0.1 0.1 1.0 1.0 1.0 2.0 3.0 1.2154193530 1.2574228395 1.2995701504 1.1981622791 1.1785132336 1.21542 1.25742 1.29957 1.19816 1.17851 Table 2: Comparison of wall heat transfer rate with the available results in literature for different values of whenand Pr Present study Hayat et al.[37] Wang [38] 0.2 0.7 2.0 7.0 0.2516516866 0.6672573291 1.3239043711 2.7229675416 0.25165 0.66726 1.32391 2.72297 0.25167 0.66729 1.32391 2.72299 Table 3: Numerical data of for different parameters of involved parameters and.
Online since: April 2012
Authors: Naohiro Nishikawa, T. Sawa, H. Kato, N. Yoshihara, H. Okawai, T. Iyama, M. Mizuno, S. Tsukamoto, Y. Sato, K. Kudo, T. Murase, K. Karita
,LTD) that is improved the performance of impurities reduction and flow rate [14].
Yamanaka: Cutting fluid and Grinding fluid (Saiwaishobo Co.Ltd., Japan 1982), p.244-264 [3] TECHNICAL RESEARCH INSTITUTE Japan Society for the Promotion of Machine Industry: Material Processing Data File Text Vol:15 (Grinding) (TECHNICAL RESEARCH INSTITUTE Japan Society for the Promotion of Machine Industry, Japan 2002), p.32-33 [4] N.
Online since: September 2008
Authors: Lars Gunnar Johansson, C. Pettersson, Erik Skog, J. Pettersson, Jan Erik Svensson, B.Å. Andersson, Sonja Enestam, Johanna Tuiremo, Anna Jonasson, Bengt Heikne, Nicklas Folkeson
It is suggested that the reduction in the corrosion rate of alloys 304L and Sanicro 28 by sulphur addition to the fuel is mainly explained by the inhibition of chromate-forming corrosion.
Barin, Thermodynamic Data of Pure Substances.
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