نتایج جستجو برای: e kavir desert
تعداد نتایج: 1031718 فیلتر نتایج به سال:
Dasht-e Lut (Lut Desert) is archaeologically well-known in Near East thanks to the presence, on its western edge, of the Bronze Age urban centre of Shahdad. In 2012, the author launched a three-season field project in the area of Shahdad, with an agenda articulated around three main research points: an extensive archaeological survey along the western edge of the Lut Desert, the stratigraphic e...
This study reports the purification and biochemical characterization of thermostable and acidic-pH-stable α-amylase from Bacillus sp. Iranian S1 isolated from the desert soil (Gandom-e-Beryan in Lut desert, Iran). Amylase production was found to be growth associated. Maximum enzyme production was in exponential phase with activity 2.93 U ml-1 at 50°C and pH 5. The enzyme was purified by isoprop...
although the geographic and climatic conditions of the desert itself is not really growing, knowing about the iranian desert is important. what expands the deserts is the relationship of the desert areas with of the natural environment itself. degradation of water resources, soil and especially vegetation in the desert belt of iran provided conditions caused desertification and their spread on ...
Several papers have documented that when subjects play with standard laboratory endowments they make less self-interested choices then when they use money they have either earned through a laboratory task or brought from outside the lab. In the context of a charitable giving experiment we decompose common "house money" e ects into two components: the tangibility of cash in hand relative to mone...
Robert J. Luxmoore a,∗, William W. Hargrove a, M. Lynn Tharp a, Wilfred M. Post a, Michael W. Berry b, Karen S. Minser b, Wendell P. Cropper, Jr. c, Dale W. Johnson d, Boris Zeide e, Ralph L. Amateis f, Harold E. Burkhart f, V. Clark Baldwin, Jr. g and Kelly D. Peterson g a Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, TN 37831-6038, USA b Department of Computer Science, 107 Ayres Hall...
Dust storms and sandy dust events originating in arid and semi-arid areas can transport particulate material, pollutants, and potential transport long distances from their sources. Exposure to desert dust particles is generally acknowledged to endanger human health. However, most studies have examined anthropogenic particulate sources, with few studies considering contributions from natural des...
accurate mapping of geological structures play an important role in the land management, some of which are considered as the origination of wind deposits, dust and aerosols. during the last decades, remote sensing has considerably helped the studies of desert areas especially in change detection of land phenomena. this study aims to study the facies morphology of playa in tabas kavir, based on ...
Soil surface roughness (SSR) is one of the important factors in wind and water erosion studies and control. Several parameters such as surface rock fragments influence SSR. Main objectives of this paper are to study and compare (Allmarass) random roughness (RR) and tortuosity (Tb) indices in coarse, medium and fine grain plains of Yazd-Ardakan and investigate the relationship between indices an...
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