نتایج جستجو برای: wind rose
تعداد نتایج: 106057 فیلتر نتایج به سال:
Introduction Nebkhas stabilized aeolian landforms in arid and semiarid areas which have been formed due to the deposition of sediments around trees, shrubs and bushes (Cooke et al, 2006:61). In addition to the wind pattern, sand resources and other natural factors like topography, rainfall and depth of the groundwater play a role in the formation and development of this landform (Melton, 194...
Observations of knock-out mice suggest that breathing at birth requires correct development of a specific hindbrain territory corresponding to rhombomeres (r) 3 and 4. Focusing on this territory, we examined the development of a neuronal rhythm generator in the chick embryo. We show that rhythmic activity in r4 is inducible after developmental stage 10 through interaction with r3. Although the ...
We have previously demonstrated that inactivation of the Krox20 gene led to the disappearance of its segmental expression territories in the hindbrain, the rhombomeres (r) 3 and 5. We now performed a detailed analysis of the fate of prospective r3 and r5 cells in Krox20 mutant embryos. Genetic fate mapping indicates that at least some of these cells persist in the absence of a functional Krox20...
Rose is one of the most important ornamental shrubs of the world because of its durability, long period of flowering, different cultivars and its beauty. The rose aphid, Macrosiphum rosae is the most important pest of the rose which causes significant economic damage annually. In order to compare four rose cultivars including Black Magic, Caramba, Noa and Good Life, and a wild rose, Nastaran, i...
Wind information can provide an optimal estimate of the runway orientation by minimizing crosswind component wind at airports, which severely affects aircraft take-off and landing performance. Additionally, a systematic geometric design requires on speed, direction, duration, specific about latitude longitude, temperature variation, altitude airport site. In present research, meteorological syn...
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