نتایج جستجو برای: geomorphological method
تعداد نتایج: 1632685 فیلتر نتایج به سال:
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
منابع اقتصادی موجود در طبیعت همواره برای انسان مهم بوده و نقشی تعیین کننده در اقتصاد کشورهای مختلف داشته است. به همین منظور تلاش در بهینه سازی روش های گوناگون استفاده از این منابع همواره مورد توجه بوده است. رسوبات از نظر دارا بودن پتانسیل لازم برای تشکیل مخازن هیدروکربوری و آبهای زیرزمینی حائز اهمیت فراوان هستند و معمولاً مورد توجه محققین مختلف قرار گرفته اند. یکی از مهمترین خصوصیات رسوبات و سنگ...
[1] Recession flows in a basin are controlled by the temporal evolution of its active drainage network (ADN). The geomorphological recession flow model (GRFM) assumes that both the rate of flow generation per unit ADN length (q) and the speed at which ADN heads move downstream (c) remain constant during a recession event. Thereby, it connects the power law exponent of –dQ/dt versus Q (discharge...
Cosmic ray exposure ages for formation of perched alluvial terraces and for abandonment of an alluvial/debrisflow fan on opposite sides of the Tangtse Valley (the outflow at the northwest end of Lake Panggong, which is in the Karakorum Range of Western Tibet) provide evidence of a humid period at V11.5 to V7 ka. This is consistent with other regional records and supports a controversial chronol...
The fields of hydrology and fluvial geomorphology get more and more attention in the general public. The reason for this is changed climate patterns with increased frequencies of storms and river flooding and as a result changed geomorphology and living conditions for the inhabitants of the area. With the development of 3D geovisualization, hydrological and geomorphological processes can be bet...
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