نتایج جستجو برای: kalehzard site

تعداد نتایج: 354441  

Bagheri, S., Mirzajani , A., Sabkara, J.,

The ecosystem of the Caspian Sea have been strikingly changed by human activities. This area has undergone significant ecological alterations and serious environmental degradation since the beginning of 1990s. The impact of fish cage culture on the zooplankton community was studied in the southwestern Caspian Sea, off Jafrud during January to April 2013. A total of 12 zooplankton belonging to 9...

Journal: :Mutagenesis 1997
G J Jenkins I de G Mitchell J M Parry

The restriction site mutation (RSM) assay was used to study the mutational sensitivities of three target regions of the murine p53 gene. The non-coding intron 6 target region was compared with the coding regions exon 4 and exon 5 with respect to their relative sensitivity to the induction of mutations by 1,2-dimethylhydrazine (DMH). Our results demonstrated that the majority of induced mutation...

Journal: :Research in Astronomy and Astrophysics 2020

Gh. Asadzadeh Khoshemehr, H. Bahadori,

Direct drilling method and the use of microtremor studies are among the most commonly used available methods utilized to estimate dynamic parameters for a site. One of the most important parameters is the dominant period of the site whose estimation plays a pivotal role in seismic hazard mitigation. The conventional models obtained are not capable of estimating the parameters that govern the se...

Journal: :Proceedings of the National Academy of Sciences 2005

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Erodibility as a dynamic property of soil depends on the soil`s aggregate stability and initial large particles percentage which are resistant to erosion. One of the effective factors on soil erosion is soil aggregate stability and its efficient components. Due to the presence of stabilized sand seas which is affected via different plantation development of Haloxylon in the desert area of Tayba...

The simultaneous effects of soil and existing structures are known as the site-city interaction (structure-soil-structure). The impact of site-city interaction on structure behavior is effective. Thus, this interaction in some regions decreases the responses while increases in other areas. In addition, the site-city interaction of many parameters including the soil type, density rate, height of...

Journal: :journal of rangeland science 2015
mohammad hassan jouri diana askarizadeh vahid rahimi kakroodi

evaluation of range conditions and plant diversity circumstances can help to rangeland managers who establish their managerial approaches on the basis of ecological capabilities of rangeland ecosystems. hence, surveying of rangelands was done in four sites of northern alborz mt. including western alborz (masooleh site), west to middle alborz (javaherdeh site), central area (polour site), and ea...

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