نتایج جستجو برای: circulation pattern
تعداد نتایج: 434990 فیلتر نتایج به سال:
introductionmany aspect strongly influence regional climate includes localized surface processes, large-scale patterns, especially mid and upper level tropospheric circulation and many factors control precipitation in the west of iran includes location of emigrate westerly winds systems, jet streams location, humidity flux and topography. upper tropospheric jet stream constitutes a significant ...
This study, adopting an environmental approach to atmospheric circulation, estimates drought periods over a 20-year period (1992-2011) in 21 synoptic stations in Kerman, Yazd and Isfahan provinces, which share a long-term statistical period, using Standardized Precipitation Index (SPI). The data pertinent to 18 teleconnection patterns were derived and compared with climatic data of provinces un...
Methods We prospectively enrolled 80 patients (51 with rightleft-coronary-cusp fusion pattern [RL-BAV] and 29 with right-non-coronary-cusp fusion pattern [RN-BAV]), and 27 healthy volunteers (HV) with a mean age across groups of 42±16 years. Time-resolved 3-dimensional flow-sensitive magnetic resonance imaging was used to quantify flow abnormalities and local distribution of WSS in the ascendin...
General circulation of Persian Gulf has a cyclonic pattern that affected by tide, wind stress and thermohaline force. Although tidal force is very effective in values of current speed, but thermohaline force is dominant in long time because tidal forcing has a short period and returning nature. Tide and density parameters are important in navigating and shipping, especially when ships approachi...
Providing comfort conditions for fish from the point of view of velocity uniformity and flow regime is one of the most important requirements of aquaculture improving the production conditions. In this research, for this purpose, by using computational fluid dynamics, Fluent software and k-ɛ turbulence model, the geometrical shape and pattern of water circulation in a fish breeding pond have be...
in this research, the correlation between precipitation change in southern coasts of caspian sea and variability of sea level pressure have been analyzed by using environmental to circulation approach at time period 1339- 1383. in this respect, we make use of daily precipitation data of the 12 synoptic stations of studied area at surface data base section and prepare the time series matrix of p...
We can identify the flood not only considering circulation pattern in occurring day but also by studying circulation pattern a few days before fresh event. This subject has mutual approach. In one hand, it indicates that circulation patterns which were before flood event have important role in determining the conditions and moisture content of studied area and playing the fundamental role...
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