Climate-tectonic coupling: Variations in the mean, variations about the mean, and variations in mode

Vanishing Mean Oscillation and Regularity in the Calculus of Variations

patterns and variations in native and non-native interlanguage pragmatic rating: effects of rater training, intercultural proficiency, and self-assessment

although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...

sea level mean monthly variations in the persian gulf, oman sea and the north of the arabian sea, in 1994

sea level variations in the persian gulf, the oman sea and the north of the arabian sea have been investigated. for this purpose, 365 daily satellite images provided by the topex/poseidon (t/p) and jason-1 satellites were processed. programming in matlab software environment was also carried out for some parts of image processing. the results of this research reveal that water level fluctuation...

The Sun's role in climate variations.

Is the Sun the controller of climate changes, only the instigator of changes that are mostly forced by the system feedbacks, or simply a convenient scapegoat for climate variations lacking any other obvious cause? This question is addressed for suggested solar forcing mechanisms operating on time scales from billions of years to decades. Each mechanism fails to generate the expected climate res...

Spatial variations of the mean and statistical quantities in the thermal boundary layers of turbulent convection

An experimental study of Rayleigh-Bénard turbulent convection in a cubic cell is presented. We measure the mean temperature profiles, the root mean square (RMS) temperature profiles and the thermal boundary layer thickness for various values of the Rayleigh number Ra and at various positions x along the direction of large-scale circulation (LSC), using water as the working fluid. The scaled mea...