A Simple GCM Based on Dry Dynamics and Constant Forcing

task-based language teaching in iran: a mixed study through constructing and validating a new questionnaire based on theoretical, sociocultural, and educational frameworks

جنبه های گوناگونی از زندگی در ایران را از جمله سبک زندگی، علم و امکانات فنی و تکنولوژیکی می توان کم یا بیش وارداتی در نظر گرفت. زبان انگلیسی و روش تدریس آن نیز از این قاعده مثتسنی نیست. با این حال گاهی سوال پیش می آید که آیا یک روش خاص با زیر ساخت های نظری، فرهنگی اجتماعی و آموزشی جامعه ایرانی سازگاری دارد یا خیر. این تحقیق بر اساس روش های ترکیبی انجام شده است.پرسش نامه ای نیز برای زبان آموزان ...

Simple Forcing Notions and Forcing Axioms

GCM temperature and circulation sensitivity to GWD forcing

Sensitivity of middle atmospheric temperature and circulation in the UIUC GCM to the treatment of subgrid-scale gravity-wave breaking F. Yang, M. E. Schlesinger, E. V. Rozanov, N. Andronova, V. A. Zubov, and L. B. Callis Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA PMOD/WRC and IAC ETHZ, Davos, Switzerland A. I. Voeikov Main Geophysical O...

Dynamics of a Delayed Epidemic Model with Beddington-DeAngelis ‎Incidence Rate and a Constant Infectious Period

In this paper, an SIR epidemic model with an infectious period and a non-linear Beddington-DeAngelis type incidence rate function is considered. The dynamics of this model depend on the reproduction number R0. Accurately, if R0 < 1, we show the global asymptotic stability of the disease-free equilibrium by analyzing the corresponding characteristic equation and using compa...

Stationary eddy response to surface boundary forcing: Idealized GCM experiments

A set of atmospheric general circulation model (AGCM) experiments under idealized conditions is performed to investigate atmospheric response to surface boundary forcing by tropical sea surface temperature (SST), extratropical land-sea contrast, and large-scale orography. Stationary eddies forced by the extratropical land-sea distribution are strongest in the high latitudes, where their amplitu...