نتایج جستجو برای: 20 and 40 tonha
تعداد نتایج: 16939414 فیلتر نتایج به سال:
this study investigated the functions, types and frequencies of code switching in the teachers and students discourse in elt classrooms. to this end, the participants of this study including two groups of teachers and students were selected. the first group of participants were two efl teachers teaching general english courses (at two different levels of proficiency) in an institutional program...
Evaluation of the vertical diffusion coefficients from ERA-40 with Rn simulations D. J. L. Olivié , P. F. J. van Velthoven, and A. C. M. Beljaars Royal Netherlands Meteorological Institute, De Bilt, The Netherlands Eindhoven University of Technology, Eindhoven, The Netherlands European Centre for Medium-range Weather Forecasts, Reading, UK Received: 15 June 2004 – Accepted: 15 July 2004 – Publi...
Aleados de Mg conteniendo 20% y 40% masa Ti (Mg20Ti) (Mg40Ti), han sido sintetizados por aleación mecánica caracterizados mediante difracción rayos-X (DRX) microscopia electrónica barrido (MEB con EDS) Los estudios DRX sugieren la incorporación en fase Mg, luego 40 horas molienda se aprecia aparición dos reflexiones identificadas como óxidos Mg-Ti. El oxígeno incorpora al proceso síntesis debid...
A new nonparametric method to correct model data is proposed. At any given point in space and time the correction is determined from “analogs” in a learning dataset. The learning dataset contains model data and simultaneous observations. The method is applied to the significant wave height dataset of the 45-yr European Centre for Medium-Range Weather Forecasts Re-Analysis (ERA-40). Comparison o...
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